diff --git a/dist/frappe-gantt.es.js b/dist/frappe-gantt.es.js
index c345361..9ed6666 100644
--- a/dist/frappe-gantt.es.js
+++ b/dist/frappe-gantt.es.js
@@ -1,4 +1,4 @@
-const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second", L = "millisecond", S = {
+const k = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second", L = "millisecond", S = {
   January: "Jan",
   February: "Feb",
   March: "Mar",
@@ -14,7 +14,7 @@ const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second"
 }, h = {
   parse_duration(n) {
     const e = /([0-9]+)(y|m|d|h|min|s|ms)/gm.exec(n);
-    if (console.log(e), e !== null) {
+    if (e !== null) {
       if (e[2] === "y")
         return { duration: parseInt(e[1]), scale: "year" };
       if (e[2] === "m")
@@ -65,15 +65,17 @@ const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second"
     };
     let d = t;
     const p = [];
-    return Object.keys(a).sort((g, u) => u.length - g.length).forEach((g) => {
+    return Object.keys(a).sort((g, c) => c.length - g.length).forEach((g) => {
       d.includes(g) && (d = d.replaceAll(g, `$${p.length}`), p.push(a[g]));
-    }), p.forEach((g, u) => {
-      d = d.replaceAll(`$${u}`, g);
+    }), p.forEach((g, c) => {
+      d = d.replaceAll(`$${c}`, g);
     }), d;
   },
   diff(n, t, e = $) {
     let s, i, r, o, a, d, p;
-    return s = n - t, i = s / 1e3, o = i / 60, r = o / 60, a = r / 24, d = a / 30, p = d / 12, e.endsWith("s") || (e += "s"), Math.floor(
+    s = n - t, i = s / 1e3, o = i / 60, r = o / 60, a = r / 24;
+    const g = n.getFullYear() - t.getFullYear(), c = n.getMonth() - t.getMonth();
+    return d = g * 12 + c, n.getDate() < t.getDate() && d--, p = d / 12, e.endsWith("s") || (e += "s"), Math.floor(
       {
         milliseconds: s,
         seconds: i,
@@ -95,7 +97,7 @@ const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second"
   add(n, t, e) {
     t = parseInt(t, 10);
     const s = [
-      n.getFullYear() + (e === M ? t : 0),
+      n.getFullYear() + (e === k ? t : 0),
       n.getMonth() + (e === D ? t : 0),
       n.getDate() + (e === $ ? t : 0),
       n.getHours() + (e === E ? t : 0),
@@ -107,7 +109,7 @@ const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second"
   },
   start_of(n, t) {
     const e = {
-      [M]: 6,
+      [k]: 6,
       [D]: 5,
       [$]: 4,
       [E]: 3,
@@ -121,7 +123,7 @@ const M = "year", D = "month", $ = "day", E = "hour", Y = "minute", A = "second"
     }
     const i = [
       n.getFullYear(),
-      s(M) ? 0 : n.getMonth(),
+      s(k) ? 0 : n.getMonth(),
       s(D) ? 1 : n.getDate(),
       s($) ? 0 : n.getHours(),
       s(E) ? 0 : n.getMinutes(),
@@ -158,7 +160,7 @@ function v(n, t, e) {
 function _(n, t) {
   return typeof n == "string" ? (t || document).querySelector(n) : n || null;
 }
-function c(n, t) {
+function u(n, t) {
   const e = document.createElementNS("http://www.w3.org/2000/svg", n);
   for (let s in t)
     s === "append_to" ? t.append_to.appendChild(e) : s === "innerHTML" ? e.innerHTML = t.innerHTML : s === "clipPath" ? e.setAttribute("clip-path", "url(#" + t[s] + ")") : e.setAttribute(s, t[s]);
@@ -182,7 +184,7 @@ function W(n, t, e, s, i = "0.4s", r = "0.1s") {
       begin: "click + " + r
       // artificial click
     }), n;
-  const a = c("animate", {
+  const a = u("animate", {
     attributeName: t,
     from: e,
     to: s,
@@ -243,13 +245,13 @@ class O {
     this.prepare_values(), this.prepare_helpers();
   }
   prepare_values() {
-    this.invalid = this.task.invalid, this.height = this.gantt.options.bar_height, this.image_size = this.height - 5, this.compute_x(), this.compute_y(), this.compute_duration(), this.corner_radius = this.gantt.options.bar_corner_radius, this.width = this.gantt.options.column_width * this.duration, this.progress_width = this.gantt.options.column_width * this.duration * (this.task.progress / 100) || 0, this.group = c("g", {
+    this.invalid = this.task.invalid, this.height = this.gantt.options.bar_height, this.image_size = this.height - 5, this.compute_x(), this.compute_y(), this.compute_duration(), this.corner_radius = this.gantt.options.bar_corner_radius, this.width = this.gantt.options.column_width * this.duration, this.progress_width = this.gantt.options.column_width * this.duration * (this.task.progress / 100) || 0, this.group = u("g", {
       class: "bar-wrapper" + (this.task.custom_class ? " " + this.task.custom_class : "") + (this.task.important ? " important" : ""),
       "data-id": this.task.id
-    }), this.bar_group = c("g", {
+    }), this.bar_group = u("g", {
       class: "bar-group",
       append_to: this.group
-    }), this.handle_group = c("g", {
+    }), this.handle_group = u("g", {
       class: "handle-group",
       append_to: this.group
     });
@@ -274,7 +276,7 @@ class O {
     this.draw_bar(), this.draw_progress_bar(), this.gantt.options.show_expected_progress && (this.prepare_expected_progress_values(), this.draw_expected_progress_bar()), this.draw_label(), this.draw_resize_handles(), this.task.thumbnail && this.draw_thumbnail();
   }
   draw_bar() {
-    this.$bar = c("rect", {
+    this.$bar = u("rect", {
       x: this.x,
       y: this.y,
       width: this.width,
@@ -286,7 +288,7 @@ class O {
     }), H(this.$bar, "width", 0, this.width), this.invalid && this.$bar.classList.add("bar-invalid");
   }
   draw_expected_progress_bar() {
-    this.invalid || (this.$expected_bar_progress = c("rect", {
+    this.invalid || (this.$expected_bar_progress = u("rect", {
       x: this.x,
       y: this.y,
       width: this.expected_progress_width,
@@ -305,7 +307,7 @@ class O {
   draw_progress_bar() {
     if (this.invalid)
       return;
-    this.$bar_progress = c("rect", {
+    this.$bar_progress = u("rect", {
       x: this.x,
       y: this.y,
       width: this.progress_width,
@@ -321,7 +323,7 @@ class O {
   }
   draw_label() {
     let t = this.x + this.$bar.getWidth() / 2;
-    this.task.thumbnail && (t = this.x + this.image_size + 5), c("text", {
+    this.task.thumbnail && (t = this.x + this.image_size + 5), u("text", {
       x: t,
       y: this.y + this.height / 2,
       innerHTML: this.task.name,
@@ -331,9 +333,9 @@ class O {
   }
   draw_thumbnail() {
     let t = 10, e = 2, s, i;
-    s = c("defs", {
+    s = u("defs", {
       append_to: this.bar_group
-    }), c("rect", {
+    }), u("rect", {
       id: "rect_" + this.task.id,
       x: this.x + t,
       y: this.y + e,
@@ -342,13 +344,13 @@ class O {
       rx: "15",
       class: "img_mask",
       append_to: s
-    }), i = c("clipPath", {
+    }), i = u("clipPath", {
       id: "clip_" + this.task.id,
       append_to: s
-    }), c("use", {
+    }), u("use", {
       href: "#rect_" + this.task.id,
       append_to: i
-    }), c("image", {
+    }), u("image", {
       x: this.x + t,
       y: this.y + e,
       width: this.image_size,
@@ -363,7 +365,7 @@ class O {
     if (this.invalid || this.gantt.options.readonly)
       return;
     const t = this.$bar, e = 8;
-    if (this.gantt.options.dates_readonly || (c("rect", {
+    if (this.gantt.options.dates_readonly || (u("rect", {
       x: t.getX() + t.getWidth() + e - 4,
       y: t.getY() + 1,
       width: e,
@@ -372,7 +374,7 @@ class O {
       ry: this.corner_radius,
       class: "handle right",
       append_to: this.handle_group
-    }), c("rect", {
+    }), u("rect", {
       x: t.getX() - e - 4,
       y: t.getY() + 1,
       width: e,
@@ -383,7 +385,7 @@ class O {
       append_to: this.handle_group
     })), !this.gantt.options.progress_readonly) {
       const s = this.$bar_progress;
-      this.$handle_progress = c("circle", {
+      this.$handle_progress = u("circle", {
         cx: s.getEndX(),
         cy: s.getY() + s.getHeight() / 2,
         r: 5,
@@ -456,8 +458,8 @@ class O {
   }
   update_label_position_on_horizontal_scroll({ x: t, sx: e }) {
     const s = document.querySelector(".gantt-container"), i = this.group.querySelector(".bar-label"), r = this.group.querySelector(".bar-img") || "", o = this.bar_group.querySelector(".img_mask") || "";
-    let a = this.$bar.getX() + this.$bar.getWidth(), d = i.getX() + t, p = r && r.getX() + t || 0, g = r && r.getBBox().width + 7 || 7, u = d + i.getBBox().width + 7, f = e + s.clientWidth / 2;
-    i.classList.contains("big") || (u < a && t > 0 && u < f || d - g > this.$bar.getX() && t < 0 && u > f) && (i.setAttribute("x", d), r && (r.setAttribute("x", p), o.setAttribute("x", p)));
+    let a = this.$bar.getX() + this.$bar.getWidth(), d = i.getX() + t, p = r && r.getX() + t || 0, g = r && r.getBBox().width + 7 || 7, c = d + i.getBBox().width + 7, f = e + s.clientWidth / 2;
+    i.classList.contains("big") || (c < a && t > 0 && c < f || d - g > this.$bar.getX() && t < 0 && c > f) && (i.setAttribute("x", d), r && (r.setAttribute("x", p), o.setAttribute("x", p)));
   }
   date_changed() {
     let t = !1;
@@ -505,7 +507,11 @@ class O {
   compute_x() {
     const { step: t, column_width: e } = this.gantt.options, s = this.task._start, i = this.gantt.gantt_start;
     let o = h.diff(s, i, "hour") / t * e;
-    this.gantt.view_is("Month") && (o = h.diff(s, i, "day") * e / 30), this.x = o;
+    if (this.gantt.view_is("Month")) {
+      const a = h.diff(s, i, "month") * 30, d = Math.min(29, h.format(s, "DD"));
+      o = (a + d) * e / 30;
+    }
+    this.x = o;
   }
   compute_y() {
     this.y = this.gantt.options.header_height + this.gantt.options.padding + this.task._index * (this.height + this.gantt.options.padding);
@@ -582,10 +588,10 @@ class C {
             m -5 -5
             l 5 5
             l -5 5`, this.to_task.$bar.getX() < this.from_task.$bar.getX() + this.gantt.options.padding) {
-      const u = this.gantt.options.padding / 2 - a, f = this.to_task.$bar.getY() + this.to_task.$bar.getHeight() / 2 - p, w = this.to_task.$bar.getX() - this.gantt.options.padding;
+      const c = this.gantt.options.padding / 2 - a, f = this.to_task.$bar.getY() + this.to_task.$bar.getHeight() / 2 - p, w = this.to_task.$bar.getX() - this.gantt.options.padding;
       this.path = `
                 M ${t} ${s}
-                v ${u}
+                v ${c}
                 a ${a} ${a} 0 0 1 -${a} ${a}
                 H ${w}
                 a ${a} ${a} 0 0 ${d} -${a} ${p}
@@ -598,7 +604,7 @@ class C {
     }
   }
   draw() {
-    this.element = c("path", {
+    this.element = u("path", {
       d: this.path,
       "data-from": this.from_task.task.id,
       "data-to": this.to_task.task.id
@@ -688,7 +694,7 @@ class B {
       throw new TypeError(
         "Frappe Gantt only supports usage of a string CSS selector, HTML DOM element or SVG DOM element for the 'element' parameter"
       );
-    e ? (this.$svg = e, this.$svg.classList.add("gantt")) : this.$svg = c("svg", {
+    e ? (this.$svg = e, this.$svg.classList.add("gantt")) : this.$svg = u("svg", {
       append_to: s,
       class: "gantt"
     }), this.$container = document.createElement("div"), this.$container.classList.add("gantt-container"), this.$svg.parentElement.appendChild(this.$container), this.$container.appendChild(this.$svg), this.$popup_wrapper = document.createElement("div"), this.$popup_wrapper.classList.add("popup-wrapper"), this.$container.appendChild(this.$popup_wrapper);
@@ -719,7 +725,7 @@ class B {
         let o = [];
         e.dependencies && (o = e.dependencies.split(",").map((a) => a.trim().replaceAll(" ", "_")).filter((a) => a)), e.dependencies = o;
       }
-      return e.id ? typeof e.id == "string" ? e.id = e.id.replaceAll(" ", "_") : e.id = `${e.id}` : e.id = z(e), e;
+      return e.id ? typeof e.id == "string" ? e.id = e.id.replaceAll(" ", "_") : e.id = `${e.id}` : e.id = F(e), e;
     }), this.setup_dependencies();
   }
   setup_dependencies() {
@@ -784,7 +790,7 @@ class B {
     this.layers = {};
     const t = ["grid", "arrow", "progress", "bar", "details"];
     for (let e of t)
-      this.layers[e] = c("g", {
+      this.layers[e] = u("g", {
         class: e,
         append_to: this.$svg
       });
@@ -797,7 +803,7 @@ class B {
   }
   make_grid_background() {
     const t = this.dates.length * this.options.column_width, e = this.options.header_height + this.options.padding + (this.options.bar_height + this.options.padding) * this.tasks.length;
-    c("rect", {
+    u("rect", {
       x: 0,
       y: 0,
       width: t,
@@ -810,10 +816,10 @@ class B {
     });
   }
   make_grid_rows() {
-    const t = c("g", { append_to: this.layers.grid }), e = this.dates.length * this.options.column_width, s = this.options.bar_height + this.options.padding;
+    const t = u("g", { append_to: this.layers.grid }), e = this.dates.length * this.options.column_width, s = this.options.bar_height + this.options.padding;
     let i = this.options.header_height + this.options.padding / 2;
     for (let r of this.tasks)
-      c("rect", {
+      u("rect", {
         x: 0,
         y: i,
         width: e,
@@ -862,7 +868,7 @@ class B {
   }
   update_button_position() {
     const t = this.$container.getBoundingClientRect(), e = this.$side_header.getBoundingClientRect(), { left: s, y: i } = this.$header.getBoundingClientRect();
-    console.log("heyy"), e.top < t.top || e.bottom > t.bottom ? (this.$side_header.style.position = "absolute", this.$side_header.style.top = `${t.scrollTop + e.top}px`) : (this.$side_header.style.position = "fixed", this.$side_header.style.top = i + 10 + "px");
+    e.top < t.top || e.bottom > t.bottom ? (this.$side_header.style.position = "absolute", this.$side_header.style.top = `${t.scrollTop + e.top}px`) : (this.$side_header.style.position = "fixed", this.$side_header.style.top = i + 10 + "px");
     const r = Math.min(
       this.$header.clientWidth,
       this.$container.clientWidth
@@ -872,14 +878,14 @@ class B {
   make_grid_ticks() {
     if (!["both", "vertical", "horizontal"].includes(this.options.lines))
       return;
-    let t = 0, e = this.options.header_height + this.options.padding / 2, s = (this.options.bar_height + this.options.padding) * this.tasks.length, i = c("g", {
+    let t = 0, e = this.options.header_height + this.options.padding / 2, s = (this.options.bar_height + this.options.padding) * this.tasks.length, i = u("g", {
       class: "lines_layer",
       append_to: this.layers.grid
     }), r = this.options.header_height + this.options.padding / 2;
     const o = this.dates.length * this.options.column_width, a = this.options.bar_height + this.options.padding;
     if (this.options.lines !== "vertical")
       for (let d of this.tasks)
-        c("line", {
+        u("line", {
           x1: 0,
           y1: r + a,
           x2: o,
@@ -890,7 +896,7 @@ class B {
     if (this.options.lines !== "horizontal")
       for (let d of this.dates) {
         let p = "tick";
-        this.view_is(l.DAY) && d.getDate() === 1 && (p += " thick"), this.view_is(l.WEEK) && d.getDate() >= 1 && d.getDate() < 8 && (p += " thick"), this.view_is(l.MONTH) && d.getMonth() % 3 === 0 && (p += " thick"), c("path", {
+        this.view_is(l.DAY) && d.getDate() === 1 && (p += " thick"), this.view_is(l.WEEK) && d.getDate() >= 1 && d.getDate() < 8 && (p += " thick"), this.view_is(l.MONTH) && d.getMonth() % 3 === 0 && (p += " thick"), u("path", {
           d: `M ${t} ${e} v ${s}`,
           class: p,
           append_to: this.layers.grid
@@ -902,7 +908,7 @@ class B {
       for (let t = new Date(this.gantt_start); t <= this.gantt_end; t.setDate(t.getDate() + 1))
         if (t.getDay() === 0 || t.getDay() === 6) {
           const e = h.diff(t, this.gantt_start, "hour") / this.options.step * this.options.column_width, s = (this.options.bar_height + this.options.padding) * this.tasks.length;
-          c("rect", {
+          u("rect", {
             x: e,
             y: this.options.header_height + this.options.padding / 2,
             width: (this.view_is("Day") ? 1 : 2) * this.options.column_width,
@@ -940,13 +946,14 @@ class B {
         return { x: e, date: r };
       e += this.options.column_width;
     }
+    return { x: e };
   }
   make_grid_highlights() {
     if (this.options.highlight_weekend && this.highlightWeekends(), this.view_is(l.DAY) || this.view_is(l.WEEK) || this.view_is(l.MONTH) || this.view_is(l.YEAR)) {
       const { x: t, date: e } = this.computeGridHighlightDimensions(
         this.options.view_mode
       );
-      if (!this.dates.find((o) => o.getTime() == e.getTime()))
+      if (!e || !this.dates.find((o) => o.getTime() == e.getTime()))
         return;
       const s = this.options.header_height + this.options.padding / 2, i = (this.options.bar_height + this.options.padding) * this.tasks.length;
       this.$current_highlight = this.create_el({
@@ -1125,8 +1132,8 @@ class B {
     this.$svg.onclick = (p) => {
       p.target.classList.contains("grid-row") && this.unselect_all();
     }, _.on(this.$svg, "mousedown", ".bar-wrapper, .handle", (p, g) => {
-      const u = _.closest(".bar-wrapper", g);
-      a.forEach((w) => w.group.classList.remove("active")), g.classList.contains("left") ? i = !0 : g.classList.contains("right") ? r = !0 : g.classList.contains("bar-wrapper") && (t = !0), u.classList.add("active"), this.popup && this.popup.parent.classList.add("hidden"), this.popup && this.popup.parent.classList.add("hidden"), e = p.offsetX || p.layerX, p.offsetY || p.layerY, o = u.getAttribute("data-id"), a = [
+      const c = _.closest(".bar-wrapper", g);
+      a.forEach((w) => w.group.classList.remove("active")), g.classList.contains("left") ? i = !0 : g.classList.contains("right") ? r = !0 : g.classList.contains("bar-wrapper") && (t = !0), c.classList.add("active"), this.popup && this.popup.parent.classList.add("hidden"), this.popup && this.popup.parent.classList.add("hidden"), e = p.offsetX || p.layerX, p.offsetY || p.layerY, o = c.getAttribute("data-id"), a = [
         o,
         ...this.get_all_dependent_tasks(o)
       ].map((w) => this.get_bar(w)), this.bar_being_dragged = o, a.forEach((w) => {
@@ -1134,7 +1141,7 @@ class B {
         b.ox = b.getX(), b.oy = b.getY(), b.owidth = b.getWidth(), b.finaldx = 0;
       });
     }), _.on(this.$container, "scroll", (p) => {
-      let g = document.querySelectorAll(".bar-wrapper"), u = [];
+      let g = document.querySelectorAll(".bar-wrapper"), c = [];
       const f = [];
       let w;
       s && (w = p.currentTarget.scrollLeft - s);
@@ -1153,12 +1160,12 @@ class B {
       if (x && !x.classList.contains("current-upper")) {
         const m = document.querySelector(".current-upper");
         m && (m.classList.remove("current-upper"), m.style.left = this.upper_texts_x[m.textContent] + "px", m.style.top = this.options.header_height - 50 + "px"), x.classList.add("current-upper");
-        let k = this.$svg.getBoundingClientRect();
-        x.style.left = k.x + this.$container.scrollLeft + 10 + "px", x.style.top = k.y + this.options.header_height - 50 + "px";
+        let M = this.$svg.getBoundingClientRect();
+        x.style.left = M.x + this.$container.scrollLeft + 10 + "px", x.style.top = M.y + this.options.header_height - 50 + "px";
       }
-      Array.prototype.forEach.call(g, function(m, k) {
+      Array.prototype.forEach.call(g, function(m, M) {
         f.push(m.getAttribute("data-id"));
-      }), w && (u = f.map((m) => this.get_bar(m)), this.options.auto_move_label && u.forEach((m) => {
+      }), w && (c = f.map((m) => this.get_bar(m)), this.options.auto_move_label && c.forEach((m) => {
         m.update_label_position_on_horizontal_scroll({
           x: w,
           sx: p.currentTarget.scrollLeft
@@ -1168,16 +1175,16 @@ class B {
       if (!d())
         return;
       const g = (p.offsetX || p.layerX) - e;
-      a.forEach((u) => {
-        const f = u.$bar;
-        f.finaldx = this.get_snap_position(g), this.hide_popup(), i ? o === u.task.id ? u.update_bar_position({
+      a.forEach((c) => {
+        const f = c.$bar;
+        f.finaldx = this.get_snap_position(g), this.hide_popup(), i ? o === c.task.id ? c.update_bar_position({
           x: f.ox + f.finaldx,
           width: f.owidth - f.finaldx
-        }) : u.update_bar_position({
+        }) : c.update_bar_position({
           x: f.ox + f.finaldx
-        }) : r ? o === u.task.id && u.update_bar_position({
+        }) : r ? o === c.task.id && c.update_bar_position({
           width: f.owidth + f.finaldx
-        }) : t && !this.options.readonly && !this.options.dates_readonly && u.update_bar_position({ x: f.ox + f.finaldx });
+        }) : t && !this.options.readonly && !this.options.dates_readonly && c.update_bar_position({ x: f.ox + f.finaldx });
       });
     }), document.addEventListener("mouseup", (p) => {
       t = !1, i = !1, r = !1;
@@ -1261,7 +1268,7 @@ class B {
   }
 }
 B.VIEW_MODE = l;
-function z(n) {
+function F(n) {
   return n.name + "_" + Math.random().toString(36).slice(2, 12);
 }
 export {
diff --git a/dist/frappe-gantt.umd.js b/dist/frappe-gantt.umd.js
index 45f0b12..3043301 100644
--- a/dist/frappe-gantt.umd.js
+++ b/dist/frappe-gantt.umd.js
@@ -1,6 +1,6 @@
-(function(y,x){typeof exports=="object"&&typeof module<"u"?module.exports=x():typeof define=="function"&&define.amd?define(x):(y=typeof globalThis<"u"?globalThis:y||self,y.Gantt=x())})(this,function(){"use strict";const y="year",x="month",k="day",D="hour",E="minute",Y="second",L="millisecond",S={January:"Jan",February:"Feb",March:"Mar",April:"Apr",May:"May",June:"Jun",July:"Jul",August:"Aug",September:"Sep",October:"Oct",November:"Nov",December:"Dec"},h={parse_duration(n){const e=/([0-9]+)(y|m|d|h|min|s|ms)/gm.exec(n);if(console.log(e),e!==null){if(e[2]==="y")return{duration:parseInt(e[1]),scale:"year"};if(e[2]==="m")return{duration:parseInt(e[1]),scale:"month"};if(e[2]==="d")return{duration:parseInt(e[1]),scale:"day"};if(e[2]==="h")return{duration:parseInt(e[1]),scale:"hour"};if(e[2]==="min")return{duration:parseInt(e[1]),scale:"minute"};if(e[2]==="s")return{duration:parseInt(e[1]),scale:"second"};if(e[2]==="ms")return{duration:parseInt(e[1]),scale:"millisecond"}}},parse(n,t="-",e=/[.:]/){if(n instanceof Date)return n;if(typeof n=="string"){let s,i;const r=n.split(" ");s=r[0].split(t).map(a=>parseInt(a,10)),i=r[1]&&r[1].split(e),s[1]=s[1]?s[1]-1:0;let o=s;return i&&i.length&&(i.length===4&&(i[3]="0."+i[3],i[3]=parseFloat(i[3])*1e3),o=o.concat(i)),new Date(...o)}},to_string(n,t=!1){if(!(n instanceof Date))throw new TypeError("Invalid argument type");const e=this.get_date_values(n).map((r,o)=>(o===1&&(r=r+1),o===6?M(r+"",3,"0"):M(r+"",2,"0"))),s=`${e[0]}-${e[1]}-${e[2]}`,i=`${e[3]}:${e[4]}:${e[5]}.${e[6]}`;return s+(t?" "+i:"")},format(n,t="YYYY-MM-DD HH:mm:ss.SSS",e="en"){const i=new Intl.DateTimeFormat(e,{month:"long"}).format(n),r=i.charAt(0).toUpperCase()+i.slice(1),o=this.get_date_values(n).map(u=>M(u,2,0)),a={YYYY:o[0],MM:M(+o[1]+1,2,0),DD:o[2],HH:o[3],mm:o[4],ss:o[5],SSS:o[6],D:o[2],MMMM:r,MMM:S[r]};let d=t;const p=[];return Object.keys(a).sort((u,c)=>c.length-u.length).forEach(u=>{d.includes(u)&&(d=d.replaceAll(u,`$${p.length}`),p.push(a[u]))}),p.forEach((u,c)=>{d=d.replaceAll(`$${c}`,u)}),d},diff(n,t,e=k){let s,i,r,o,a,d,p;return s=n-t,i=s/1e3,o=i/60,r=o/60,a=r/24,d=a/30,p=d/12,e.endsWith("s")||(e+="s"),Math.floor({milliseconds:s,seconds:i,minutes:o,hours:r,days:a,months:d,years:p}[e])},today(){const n=this.get_date_values(new Date).slice(0,3);return new Date(...n)},now(){return new Date},add(n,t,e){t=parseInt(t,10);const s=[n.getFullYear()+(e===y?t:0),n.getMonth()+(e===x?t:0),n.getDate()+(e===k?t:0),n.getHours()+(e===D?t:0),n.getMinutes()+(e===E?t:0),n.getSeconds()+(e===Y?t:0),n.getMilliseconds()+(e===L?t:0)];return new Date(...s)},start_of(n,t){const e={[y]:6,[x]:5,[k]:4,[D]:3,[E]:2,[Y]:1,[L]:0};function s(r){const o=e[t];return e[r]<=o}const i=[n.getFullYear(),s(y)?0:n.getMonth(),s(x)?1:n.getDate(),s(k)?0:n.getHours(),s(D)?0:n.getMinutes(),s(E)?0:n.getSeconds(),s(Y)?0:n.getMilliseconds()];return new Date(...i)},clone(n){return new Date(...this.get_date_values(n))},get_date_values(n){return[n.getFullYear(),n.getMonth(),n.getDate(),n.getHours(),n.getMinutes(),n.getSeconds(),n.getMilliseconds()]},get_days_in_month(n){const t=[31,28,31,30,31,30,31,31,30,31,30,31],e=n.getMonth();if(e!==1)return t[e];const s=n.getFullYear();return s%4===0&&s%100!=0||s%400===0?29:28}};function M(n,t,e){return n=n+"",t=t>>0,e=String(typeof e<"u"?e:" "),n.length>t?String(n):(t=t-n.length,t>e.length&&(e+=e.repeat(t/e.length)),e.slice(0,t)+String(n))}function _(n,t){return typeof n=="string"?(t||document).querySelector(n):n||null}function g(n,t){const e=document.createElementNS("http://www.w3.org/2000/svg",n);for(let s in t)s==="append_to"?t.append_to.appendChild(e):s==="innerHTML"?e.innerHTML=t.innerHTML:s==="clipPath"?e.setAttribute("clip-path","url(#"+t[s]+")"):e.setAttribute(s,t[s]);return e}function A(n,t,e,s){const i=W(n,t,e,s);if(i===n){const r=document.createEvent("HTMLEvents");r.initEvent("click",!0,!0),r.eventName="click",i.dispatchEvent(r)}}function W(n,t,e,s,i="0.4s",r="0.1s"){const o=n.querySelector("animate");if(o)return _.attr(o,{attributeName:t,from:e,to:s,dur:i,begin:"click + "+r}),n;const a=g("animate",{attributeName:t,from:e,to:s,dur:i,begin:r,calcMode:"spline",values:e+";"+s,keyTimes:"0; 1",keySplines:X("ease-out")});return n.appendChild(a),n}function X(n){return{ease:".25 .1 .25 1",linear:"0 0 1 1","ease-in":".42 0 1 1","ease-out":"0 0 .58 1","ease-in-out":".42 0 .58 1"}[n]}_.on=(n,t,e,s)=>{s?_.delegate(n,t,e,s):(s=e,_.bind(n,t,s))},_.off=(n,t,e)=>{n.removeEventListener(t,e)},_.bind=(n,t,e)=>{t.split(/\s+/).forEach(function(s){n.addEventListener(s,e)})},_.delegate=(n,t,e,s)=>{n.addEventListener(t,function(i){const r=i.target.closest(e);r&&(i.delegatedTarget=r,s.call(this,i,r))})},_.closest=(n,t)=>t?t.matches(n)?t:_.closest(n,t.parentNode):null,_.attr=(n,t,e)=>{if(!e&&typeof t=="string")return n.getAttribute(t);if(typeof t=="object"){for(let s in t)_.attr(n,s,t[s]);return}n.setAttribute(t,e)};class O{constructor(t,e){this.set_defaults(t,e),this.prepare(),this.draw(),this.bind()}set_defaults(t,e){this.action_completed=!1,this.gantt=t,this.task=e}prepare(){this.prepare_values(),this.prepare_helpers()}prepare_values(){this.invalid=this.task.invalid,this.height=this.gantt.options.bar_height,this.image_size=this.height-5,this.compute_x(),this.compute_y(),this.compute_duration(),this.corner_radius=this.gantt.options.bar_corner_radius,this.width=this.gantt.options.column_width*this.duration,this.progress_width=this.gantt.options.column_width*this.duration*(this.task.progress/100)||0,this.group=g("g",{class:"bar-wrapper"+(this.task.custom_class?" "+this.task.custom_class:"")+(this.task.important?" important":""),"data-id":this.task.id}),this.bar_group=g("g",{class:"bar-group",append_to:this.group}),this.handle_group=g("g",{class:"handle-group",append_to:this.group})}prepare_helpers(){SVGElement.prototype.getX=function(){return+this.getAttribute("x")},SVGElement.prototype.getY=function(){return+this.getAttribute("y")},SVGElement.prototype.getWidth=function(){return+this.getAttribute("width")},SVGElement.prototype.getHeight=function(){return+this.getAttribute("height")},SVGElement.prototype.getEndX=function(){return this.getX()+this.getWidth()}}prepare_expected_progress_values(){this.compute_expected_progress(),this.expected_progress_width=this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0}draw(){this.draw_bar(),this.draw_progress_bar(),this.gantt.options.show_expected_progress&&(this.prepare_expected_progress_values(),this.draw_expected_progress_bar()),this.draw_label(),this.draw_resize_handles(),this.task.thumbnail&&this.draw_thumbnail()}draw_bar(){this.$bar=g("rect",{x:this.x,y:this.y,width:this.width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar"+(/^((?!chrome|android).)*safari/i.test(navigator.userAgent)&&!this.task.important?" safari":""),append_to:this.bar_group}),A(this.$bar,"width",0,this.width),this.invalid&&this.$bar.classList.add("bar-invalid")}draw_expected_progress_bar(){this.invalid||(this.$expected_bar_progress=g("rect",{x:this.x,y:this.y,width:this.expected_progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-expected-progress",append_to:this.bar_group}),A(this.$expected_bar_progress,"width",0,this.expected_progress_width))}draw_progress_bar(){if(this.invalid)return;this.$bar_progress=g("rect",{x:this.x,y:this.y,width:this.progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-progress",append_to:this.bar_group});const t=h.diff(this.task._start,this.gantt.gantt_start,"hour")/this.gantt.options.step*this.gantt.options.column_width;let e=document.createElement("div");e.id=`${this.task.id}-highlight`,e.classList.add("date-highlight"),e.style.height=this.height*.8+"px",e.style.width=this.width+"px",e.style.top=this.gantt.options.header_height-25+"px",e.style.left=t+"px",this.$date_highlight=e,this.gantt.$lower_header.prepend(e),A(this.$bar_progress,"width",0,this.progress_width)}draw_label(){let t=this.x+this.$bar.getWidth()/2;this.task.thumbnail&&(t=this.x+this.image_size+5),g("text",{x:t,y:this.y+this.height/2,innerHTML:this.task.name,class:"bar-label",append_to:this.bar_group}),requestAnimationFrame(()=>this.update_label_position())}draw_thumbnail(){let t=10,e=2,s,i;s=g("defs",{append_to:this.bar_group}),g("rect",{id:"rect_"+this.task.id,x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,rx:"15",class:"img_mask",append_to:s}),i=g("clipPath",{id:"clip_"+this.task.id,append_to:s}),g("use",{href:"#rect_"+this.task.id,append_to:i}),g("image",{x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,class:"bar-img",href:this.task.thumbnail,clipPath:"clip_"+this.task.id,append_to:this.bar_group})}draw_resize_handles(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar,e=8;if(this.gantt.options.dates_readonly||(g("rect",{x:t.getX()+t.getWidth()+e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle right",append_to:this.handle_group}),g("rect",{x:t.getX()-e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle left",append_to:this.handle_group})),!this.gantt.options.progress_readonly){const s=this.$bar_progress;this.$handle_progress=g("circle",{cx:s.getEndX(),cy:s.getY()+s.getHeight()/2,r:5,class:"handle progress",append_to:this.handle_group})}}bind(){this.invalid||this.setup_click_event()}setup_click_event(){let t=this.task.id;_.on(this.group,"mouseover",s=>{this.gantt.trigger_event("hover",[this.task,s.screenX,s.screenY,s])});let e;_.on(this.group,"mouseenter",s=>e=setTimeout(()=>{this.show_popup(s.offsetX||s.layerX),document.getElementById(`${t}-highlight`).style.display="block"},200)),_.on(this.group,"mouseleave",()=>{var s,i;clearTimeout(e),(i=(s=this.gantt.popup)==null?void 0:s.hide)==null||i.call(s),document.getElementById(`${t}-highlight`).style.display="none"}),_.on(this.group,"click",()=>{this.gantt.trigger_event("click",[this.task])}),_.on(this.group,"dblclick",s=>{this.action_completed||(this.group.classList.remove("active"),this.gantt.popup&&this.gantt.popup.parent.classList.remove("hidden"),this.gantt.trigger_event("double_click",[this.task]))})}show_popup(t){if(this.gantt.bar_being_dragged)return;const e=h.format(this.task._start,"MMM D",this.gantt.options.language),s=h.format(h.add(this.task._end,-1,"second"),"MMM D",this.gantt.options.language),i=`${e} -  ${s}<br/>Progress: ${this.task.progress}`;this.gantt.show_popup({x:t,target_element:this.$bar,title:this.task.name,subtitle:i,task:this.task})}update_bar_position({x:t=null,width:e=null}){const s=this.$bar;if(t){if(!this.task.dependencies.map(o=>this.gantt.get_bar(o).$bar.getX()).reduce((o,a)=>t>=a,t)){e=null;return}this.update_attr(s,"x",t),this.$date_highlight.style.left=t+"px"}e&&(this.update_attr(s,"width",e),this.$date_highlight.style.width=e+"px"),this.update_label_position(),this.update_handle_position(),this.gantt.options.show_expected_progress&&(this.date_changed(),this.compute_duration(),this.update_expected_progressbar_position()),this.update_progressbar_position(),this.update_arrow_position()}update_label_position_on_horizontal_scroll({x:t,sx:e}){const s=document.querySelector(".gantt-container"),i=this.group.querySelector(".bar-label"),r=this.group.querySelector(".bar-img")||"",o=this.bar_group.querySelector(".img_mask")||"";let a=this.$bar.getX()+this.$bar.getWidth(),d=i.getX()+t,p=r&&r.getX()+t||0,u=r&&r.getBBox().width+7||7,c=d+i.getBBox().width+7,f=e+s.clientWidth/2;i.classList.contains("big")||(c<a&&t>0&&c<f||d-u>this.$bar.getX()&&t<0&&c>f)&&(i.setAttribute("x",d),r&&(r.setAttribute("x",p),o.setAttribute("x",p)))}date_changed(){let t=!1;const{new_start_date:e,new_end_date:s}=this.compute_start_end_date();Number(this.task._start)!==Number(e)&&(t=!0,this.task._start=e),Number(this.task._end)!==Number(s)&&(t=!0,this.task._end=s),t&&this.gantt.trigger_event("date_change",[this.task,e,h.add(s,-1,"second")])}progress_changed(){const t=this.compute_progress();this.task.progress=t,this.gantt.trigger_event("progress_change",[this.task,t])}set_action_completed(){this.action_completed=!0,setTimeout(()=>this.action_completed=!1,1e3)}compute_start_end_date(){const t=this.$bar,e=t.getX()/this.gantt.options.column_width;let s=h.add(this.gantt.gantt_start,e*this.gantt.options.step,"hour");const i=this.gantt.gantt_start.getTimezoneOffset()-s.getTimezoneOffset();i&&(s=h.add(s,i,"minute"));const r=t.getWidth()/this.gantt.options.column_width,o=h.add(s,r*this.gantt.options.step,"hour");return{new_start_date:s,new_end_date:o}}compute_progress(){const t=this.$bar_progress.getWidth()/this.$bar.getWidth()*100;return parseInt(t,10)}compute_expected_progress(){this.expected_progress=h.diff(h.today(),this.task._start,"hour")/this.gantt.options.step,this.expected_progress=(this.expected_progress<this.duration?this.expected_progress:this.duration)*100/this.duration}compute_x(){const{step:t,column_width:e}=this.gantt.options,s=this.task._start,i=this.gantt.gantt_start;let o=h.diff(s,i,"hour")/t*e;this.gantt.view_is("Month")&&(o=h.diff(s,i,"day")*e/30),this.x=o}compute_y(){this.y=this.gantt.options.header_height+this.gantt.options.padding+this.task._index*(this.height+this.gantt.options.padding)}compute_duration(){this.duration=h.diff(this.task._end,this.task._start,"hour")/this.gantt.options.step}get_snap_position(t){let e=t,s,i;return this.gantt.view_is("Week")?(s=t%(this.gantt.options.column_width/7),i=e-s+(s<this.gantt.options.column_width/14?0:this.gantt.options.column_width/7)):this.gantt.view_is("Month")?(s=t%(this.gantt.options.column_width/30),i=e-s+(s<this.gantt.options.column_width/60?0:this.gantt.options.column_width/30)):(s=t%this.gantt.options.column_width,i=e-s+(s<this.gantt.options.column_width/2?0:this.gantt.options.column_width)),i}update_attr(t,e,s){return s=+s,isNaN(s)||t.setAttribute(e,s),t}update_expected_progressbar_position(){this.invalid||(this.$expected_bar_progress.setAttribute("x",this.$bar.getX()),this.compute_expected_progress(),this.$expected_bar_progress.setAttribute("width",this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0))}update_progressbar_position(){this.invalid||this.gantt.options.readonly||(this.$bar_progress.setAttribute("x",this.$bar.getX()),this.$bar_progress.setAttribute("width",this.$bar.getWidth()*(this.task.progress/100)))}update_label_position(){const t=this.bar_group.querySelector(".img_mask")||"",e=this.$bar,s=this.group.querySelector(".bar-label"),i=this.group.querySelector(".bar-img");let r=5,o=this.image_size+10;const a=s.getBBox().width,d=e.getWidth();a>d?(s.classList.add("big"),i?(i.setAttribute("x",e.getX()+e.getWidth()+r),t.setAttribute("x",e.getX()+e.getWidth()+r),s.setAttribute("x",e.getX()+e.getWidth()+o)):s.setAttribute("x",e.getX()+e.getWidth()+r)):(s.classList.remove("big"),i?(i.setAttribute("x",e.getX()+r),t.setAttribute("x",e.getX()+r),s.setAttribute("x",e.getX()+d/2+o)):s.setAttribute("x",e.getX()+d/2-a/2))}update_handle_position(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar;this.handle_group.querySelector(".handle.left").setAttribute("x",t.getX()-12),this.handle_group.querySelector(".handle.right").setAttribute("x",t.getEndX()+4);const e=this.group.querySelector(".handle.progress");e&&e.setAttribute("cx",this.$bar_progress.getEndX())}update_arrow_position(){this.arrows=this.arrows||[];for(let t of this.arrows)t.update()}}class C{constructor(t,e,s){this.gantt=t,this.from_task=e,this.to_task=s,this.calculate_path(),this.draw()}calculate_path(){let t=this.from_task.$bar.getX()+this.from_task.$bar.getWidth()/2;const e=()=>this.to_task.$bar.getX()<t+this.gantt.options.padding&&t>this.from_task.$bar.getX()+this.gantt.options.padding;for(;e();)t-=10;const s=this.gantt.options.header_height+this.gantt.options.bar_height+(this.gantt.options.padding+this.gantt.options.bar_height)*this.from_task.task._index+this.gantt.options.padding,i=this.to_task.$bar.getX()-this.gantt.options.padding/2-7,r=this.gantt.options.header_height+this.gantt.options.bar_height/2+(this.gantt.options.padding+this.gantt.options.bar_height)*this.to_task.task._index+this.gantt.options.padding,o=this.from_task.task._index>this.to_task.task._index,a=this.gantt.options.arrow_curve,d=o?1:0,p=o?-a:a,u=o?r+this.gantt.options.arrow_curve:r-this.gantt.options.arrow_curve;if(this.path=`
+(function(y,x){typeof exports=="object"&&typeof module<"u"?module.exports=x():typeof define=="function"&&define.amd?define(x):(y=typeof globalThis<"u"?globalThis:y||self,y.Gantt=x())})(this,function(){"use strict";const y="year",x="month",M="day",D="hour",E="minute",Y="second",L="millisecond",S={January:"Jan",February:"Feb",March:"Mar",April:"Apr",May:"May",June:"Jun",July:"Jul",August:"Aug",September:"Sep",October:"Oct",November:"Nov",December:"Dec"},h={parse_duration(o){const e=/([0-9]+)(y|m|d|h|min|s|ms)/gm.exec(o);if(e!==null){if(e[2]==="y")return{duration:parseInt(e[1]),scale:"year"};if(e[2]==="m")return{duration:parseInt(e[1]),scale:"month"};if(e[2]==="d")return{duration:parseInt(e[1]),scale:"day"};if(e[2]==="h")return{duration:parseInt(e[1]),scale:"hour"};if(e[2]==="min")return{duration:parseInt(e[1]),scale:"minute"};if(e[2]==="s")return{duration:parseInt(e[1]),scale:"second"};if(e[2]==="ms")return{duration:parseInt(e[1]),scale:"millisecond"}}},parse(o,t="-",e=/[.:]/){if(o instanceof Date)return o;if(typeof o=="string"){let s,i;const r=o.split(" ");s=r[0].split(t).map(a=>parseInt(a,10)),i=r[1]&&r[1].split(e),s[1]=s[1]?s[1]-1:0;let n=s;return i&&i.length&&(i.length===4&&(i[3]="0."+i[3],i[3]=parseFloat(i[3])*1e3),n=n.concat(i)),new Date(...n)}},to_string(o,t=!1){if(!(o instanceof Date))throw new TypeError("Invalid argument type");const e=this.get_date_values(o).map((r,n)=>(n===1&&(r=r+1),n===6?k(r+"",3,"0"):k(r+"",2,"0"))),s=`${e[0]}-${e[1]}-${e[2]}`,i=`${e[3]}:${e[4]}:${e[5]}.${e[6]}`;return s+(t?" "+i:"")},format(o,t="YYYY-MM-DD HH:mm:ss.SSS",e="en"){const i=new Intl.DateTimeFormat(e,{month:"long"}).format(o),r=i.charAt(0).toUpperCase()+i.slice(1),n=this.get_date_values(o).map(g=>k(g,2,0)),a={YYYY:n[0],MM:k(+n[1]+1,2,0),DD:n[2],HH:n[3],mm:n[4],ss:n[5],SSS:n[6],D:n[2],MMMM:r,MMM:S[r]};let d=t;const p=[];return Object.keys(a).sort((g,c)=>c.length-g.length).forEach(g=>{d.includes(g)&&(d=d.replaceAll(g,`$${p.length}`),p.push(a[g]))}),p.forEach((g,c)=>{d=d.replaceAll(`$${c}`,g)}),d},diff(o,t,e=M){let s,i,r,n,a,d,p;s=o-t,i=s/1e3,n=i/60,r=n/60,a=r/24;const g=o.getFullYear()-t.getFullYear(),c=o.getMonth()-t.getMonth();return d=g*12+c,o.getDate()<t.getDate()&&d--,p=d/12,e.endsWith("s")||(e+="s"),Math.floor({milliseconds:s,seconds:i,minutes:n,hours:r,days:a,months:d,years:p}[e])},today(){const o=this.get_date_values(new Date).slice(0,3);return new Date(...o)},now(){return new Date},add(o,t,e){t=parseInt(t,10);const s=[o.getFullYear()+(e===y?t:0),o.getMonth()+(e===x?t:0),o.getDate()+(e===M?t:0),o.getHours()+(e===D?t:0),o.getMinutes()+(e===E?t:0),o.getSeconds()+(e===Y?t:0),o.getMilliseconds()+(e===L?t:0)];return new Date(...s)},start_of(o,t){const e={[y]:6,[x]:5,[M]:4,[D]:3,[E]:2,[Y]:1,[L]:0};function s(r){const n=e[t];return e[r]<=n}const i=[o.getFullYear(),s(y)?0:o.getMonth(),s(x)?1:o.getDate(),s(M)?0:o.getHours(),s(D)?0:o.getMinutes(),s(E)?0:o.getSeconds(),s(Y)?0:o.getMilliseconds()];return new Date(...i)},clone(o){return new Date(...this.get_date_values(o))},get_date_values(o){return[o.getFullYear(),o.getMonth(),o.getDate(),o.getHours(),o.getMinutes(),o.getSeconds(),o.getMilliseconds()]},get_days_in_month(o){const t=[31,28,31,30,31,30,31,31,30,31,30,31],e=o.getMonth();if(e!==1)return t[e];const s=o.getFullYear();return s%4===0&&s%100!=0||s%400===0?29:28}};function k(o,t,e){return o=o+"",t=t>>0,e=String(typeof e<"u"?e:" "),o.length>t?String(o):(t=t-o.length,t>e.length&&(e+=e.repeat(t/e.length)),e.slice(0,t)+String(o))}function _(o,t){return typeof o=="string"?(t||document).querySelector(o):o||null}function u(o,t){const e=document.createElementNS("http://www.w3.org/2000/svg",o);for(let s in t)s==="append_to"?t.append_to.appendChild(e):s==="innerHTML"?e.innerHTML=t.innerHTML:s==="clipPath"?e.setAttribute("clip-path","url(#"+t[s]+")"):e.setAttribute(s,t[s]);return e}function A(o,t,e,s){const i=W(o,t,e,s);if(i===o){const r=document.createEvent("HTMLEvents");r.initEvent("click",!0,!0),r.eventName="click",i.dispatchEvent(r)}}function W(o,t,e,s,i="0.4s",r="0.1s"){const n=o.querySelector("animate");if(n)return _.attr(n,{attributeName:t,from:e,to:s,dur:i,begin:"click + "+r}),o;const a=u("animate",{attributeName:t,from:e,to:s,dur:i,begin:r,calcMode:"spline",values:e+";"+s,keyTimes:"0; 1",keySplines:X("ease-out")});return o.appendChild(a),o}function X(o){return{ease:".25 .1 .25 1",linear:"0 0 1 1","ease-in":".42 0 1 1","ease-out":"0 0 .58 1","ease-in-out":".42 0 .58 1"}[o]}_.on=(o,t,e,s)=>{s?_.delegate(o,t,e,s):(s=e,_.bind(o,t,s))},_.off=(o,t,e)=>{o.removeEventListener(t,e)},_.bind=(o,t,e)=>{t.split(/\s+/).forEach(function(s){o.addEventListener(s,e)})},_.delegate=(o,t,e,s)=>{o.addEventListener(t,function(i){const r=i.target.closest(e);r&&(i.delegatedTarget=r,s.call(this,i,r))})},_.closest=(o,t)=>t?t.matches(o)?t:_.closest(o,t.parentNode):null,_.attr=(o,t,e)=>{if(!e&&typeof t=="string")return o.getAttribute(t);if(typeof t=="object"){for(let s in t)_.attr(o,s,t[s]);return}o.setAttribute(t,e)};class O{constructor(t,e){this.set_defaults(t,e),this.prepare(),this.draw(),this.bind()}set_defaults(t,e){this.action_completed=!1,this.gantt=t,this.task=e}prepare(){this.prepare_values(),this.prepare_helpers()}prepare_values(){this.invalid=this.task.invalid,this.height=this.gantt.options.bar_height,this.image_size=this.height-5,this.compute_x(),this.compute_y(),this.compute_duration(),this.corner_radius=this.gantt.options.bar_corner_radius,this.width=this.gantt.options.column_width*this.duration,this.progress_width=this.gantt.options.column_width*this.duration*(this.task.progress/100)||0,this.group=u("g",{class:"bar-wrapper"+(this.task.custom_class?" "+this.task.custom_class:"")+(this.task.important?" important":""),"data-id":this.task.id}),this.bar_group=u("g",{class:"bar-group",append_to:this.group}),this.handle_group=u("g",{class:"handle-group",append_to:this.group})}prepare_helpers(){SVGElement.prototype.getX=function(){return+this.getAttribute("x")},SVGElement.prototype.getY=function(){return+this.getAttribute("y")},SVGElement.prototype.getWidth=function(){return+this.getAttribute("width")},SVGElement.prototype.getHeight=function(){return+this.getAttribute("height")},SVGElement.prototype.getEndX=function(){return this.getX()+this.getWidth()}}prepare_expected_progress_values(){this.compute_expected_progress(),this.expected_progress_width=this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0}draw(){this.draw_bar(),this.draw_progress_bar(),this.gantt.options.show_expected_progress&&(this.prepare_expected_progress_values(),this.draw_expected_progress_bar()),this.draw_label(),this.draw_resize_handles(),this.task.thumbnail&&this.draw_thumbnail()}draw_bar(){this.$bar=u("rect",{x:this.x,y:this.y,width:this.width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar"+(/^((?!chrome|android).)*safari/i.test(navigator.userAgent)&&!this.task.important?" safari":""),append_to:this.bar_group}),A(this.$bar,"width",0,this.width),this.invalid&&this.$bar.classList.add("bar-invalid")}draw_expected_progress_bar(){this.invalid||(this.$expected_bar_progress=u("rect",{x:this.x,y:this.y,width:this.expected_progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-expected-progress",append_to:this.bar_group}),A(this.$expected_bar_progress,"width",0,this.expected_progress_width))}draw_progress_bar(){if(this.invalid)return;this.$bar_progress=u("rect",{x:this.x,y:this.y,width:this.progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-progress",append_to:this.bar_group});const t=h.diff(this.task._start,this.gantt.gantt_start,"hour")/this.gantt.options.step*this.gantt.options.column_width;let e=document.createElement("div");e.id=`${this.task.id}-highlight`,e.classList.add("date-highlight"),e.style.height=this.height*.8+"px",e.style.width=this.width+"px",e.style.top=this.gantt.options.header_height-25+"px",e.style.left=t+"px",this.$date_highlight=e,this.gantt.$lower_header.prepend(e),A(this.$bar_progress,"width",0,this.progress_width)}draw_label(){let t=this.x+this.$bar.getWidth()/2;this.task.thumbnail&&(t=this.x+this.image_size+5),u("text",{x:t,y:this.y+this.height/2,innerHTML:this.task.name,class:"bar-label",append_to:this.bar_group}),requestAnimationFrame(()=>this.update_label_position())}draw_thumbnail(){let t=10,e=2,s,i;s=u("defs",{append_to:this.bar_group}),u("rect",{id:"rect_"+this.task.id,x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,rx:"15",class:"img_mask",append_to:s}),i=u("clipPath",{id:"clip_"+this.task.id,append_to:s}),u("use",{href:"#rect_"+this.task.id,append_to:i}),u("image",{x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,class:"bar-img",href:this.task.thumbnail,clipPath:"clip_"+this.task.id,append_to:this.bar_group})}draw_resize_handles(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar,e=8;if(this.gantt.options.dates_readonly||(u("rect",{x:t.getX()+t.getWidth()+e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle right",append_to:this.handle_group}),u("rect",{x:t.getX()-e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle left",append_to:this.handle_group})),!this.gantt.options.progress_readonly){const s=this.$bar_progress;this.$handle_progress=u("circle",{cx:s.getEndX(),cy:s.getY()+s.getHeight()/2,r:5,class:"handle progress",append_to:this.handle_group})}}bind(){this.invalid||this.setup_click_event()}setup_click_event(){let t=this.task.id;_.on(this.group,"mouseover",s=>{this.gantt.trigger_event("hover",[this.task,s.screenX,s.screenY,s])});let e;_.on(this.group,"mouseenter",s=>e=setTimeout(()=>{this.show_popup(s.offsetX||s.layerX),document.getElementById(`${t}-highlight`).style.display="block"},200)),_.on(this.group,"mouseleave",()=>{var s,i;clearTimeout(e),(i=(s=this.gantt.popup)==null?void 0:s.hide)==null||i.call(s),document.getElementById(`${t}-highlight`).style.display="none"}),_.on(this.group,"click",()=>{this.gantt.trigger_event("click",[this.task])}),_.on(this.group,"dblclick",s=>{this.action_completed||(this.group.classList.remove("active"),this.gantt.popup&&this.gantt.popup.parent.classList.remove("hidden"),this.gantt.trigger_event("double_click",[this.task]))})}show_popup(t){if(this.gantt.bar_being_dragged)return;const e=h.format(this.task._start,"MMM D",this.gantt.options.language),s=h.format(h.add(this.task._end,-1,"second"),"MMM D",this.gantt.options.language),i=`${e} -  ${s}<br/>Progress: ${this.task.progress}`;this.gantt.show_popup({x:t,target_element:this.$bar,title:this.task.name,subtitle:i,task:this.task})}update_bar_position({x:t=null,width:e=null}){const s=this.$bar;if(t){if(!this.task.dependencies.map(n=>this.gantt.get_bar(n).$bar.getX()).reduce((n,a)=>t>=a,t)){e=null;return}this.update_attr(s,"x",t),this.$date_highlight.style.left=t+"px"}e&&(this.update_attr(s,"width",e),this.$date_highlight.style.width=e+"px"),this.update_label_position(),this.update_handle_position(),this.gantt.options.show_expected_progress&&(this.date_changed(),this.compute_duration(),this.update_expected_progressbar_position()),this.update_progressbar_position(),this.update_arrow_position()}update_label_position_on_horizontal_scroll({x:t,sx:e}){const s=document.querySelector(".gantt-container"),i=this.group.querySelector(".bar-label"),r=this.group.querySelector(".bar-img")||"",n=this.bar_group.querySelector(".img_mask")||"";let a=this.$bar.getX()+this.$bar.getWidth(),d=i.getX()+t,p=r&&r.getX()+t||0,g=r&&r.getBBox().width+7||7,c=d+i.getBBox().width+7,f=e+s.clientWidth/2;i.classList.contains("big")||(c<a&&t>0&&c<f||d-g>this.$bar.getX()&&t<0&&c>f)&&(i.setAttribute("x",d),r&&(r.setAttribute("x",p),n.setAttribute("x",p)))}date_changed(){let t=!1;const{new_start_date:e,new_end_date:s}=this.compute_start_end_date();Number(this.task._start)!==Number(e)&&(t=!0,this.task._start=e),Number(this.task._end)!==Number(s)&&(t=!0,this.task._end=s),t&&this.gantt.trigger_event("date_change",[this.task,e,h.add(s,-1,"second")])}progress_changed(){const t=this.compute_progress();this.task.progress=t,this.gantt.trigger_event("progress_change",[this.task,t])}set_action_completed(){this.action_completed=!0,setTimeout(()=>this.action_completed=!1,1e3)}compute_start_end_date(){const t=this.$bar,e=t.getX()/this.gantt.options.column_width;let s=h.add(this.gantt.gantt_start,e*this.gantt.options.step,"hour");const i=this.gantt.gantt_start.getTimezoneOffset()-s.getTimezoneOffset();i&&(s=h.add(s,i,"minute"));const r=t.getWidth()/this.gantt.options.column_width,n=h.add(s,r*this.gantt.options.step,"hour");return{new_start_date:s,new_end_date:n}}compute_progress(){const t=this.$bar_progress.getWidth()/this.$bar.getWidth()*100;return parseInt(t,10)}compute_expected_progress(){this.expected_progress=h.diff(h.today(),this.task._start,"hour")/this.gantt.options.step,this.expected_progress=(this.expected_progress<this.duration?this.expected_progress:this.duration)*100/this.duration}compute_x(){const{step:t,column_width:e}=this.gantt.options,s=this.task._start,i=this.gantt.gantt_start;let n=h.diff(s,i,"hour")/t*e;if(this.gantt.view_is("Month")){const a=h.diff(s,i,"month")*30,d=Math.min(29,h.format(s,"DD"));n=(a+d)*e/30}this.x=n}compute_y(){this.y=this.gantt.options.header_height+this.gantt.options.padding+this.task._index*(this.height+this.gantt.options.padding)}compute_duration(){this.duration=h.diff(this.task._end,this.task._start,"hour")/this.gantt.options.step}get_snap_position(t){let e=t,s,i;return this.gantt.view_is("Week")?(s=t%(this.gantt.options.column_width/7),i=e-s+(s<this.gantt.options.column_width/14?0:this.gantt.options.column_width/7)):this.gantt.view_is("Month")?(s=t%(this.gantt.options.column_width/30),i=e-s+(s<this.gantt.options.column_width/60?0:this.gantt.options.column_width/30)):(s=t%this.gantt.options.column_width,i=e-s+(s<this.gantt.options.column_width/2?0:this.gantt.options.column_width)),i}update_attr(t,e,s){return s=+s,isNaN(s)||t.setAttribute(e,s),t}update_expected_progressbar_position(){this.invalid||(this.$expected_bar_progress.setAttribute("x",this.$bar.getX()),this.compute_expected_progress(),this.$expected_bar_progress.setAttribute("width",this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0))}update_progressbar_position(){this.invalid||this.gantt.options.readonly||(this.$bar_progress.setAttribute("x",this.$bar.getX()),this.$bar_progress.setAttribute("width",this.$bar.getWidth()*(this.task.progress/100)))}update_label_position(){const t=this.bar_group.querySelector(".img_mask")||"",e=this.$bar,s=this.group.querySelector(".bar-label"),i=this.group.querySelector(".bar-img");let r=5,n=this.image_size+10;const a=s.getBBox().width,d=e.getWidth();a>d?(s.classList.add("big"),i?(i.setAttribute("x",e.getX()+e.getWidth()+r),t.setAttribute("x",e.getX()+e.getWidth()+r),s.setAttribute("x",e.getX()+e.getWidth()+n)):s.setAttribute("x",e.getX()+e.getWidth()+r)):(s.classList.remove("big"),i?(i.setAttribute("x",e.getX()+r),t.setAttribute("x",e.getX()+r),s.setAttribute("x",e.getX()+d/2+n)):s.setAttribute("x",e.getX()+d/2-a/2))}update_handle_position(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar;this.handle_group.querySelector(".handle.left").setAttribute("x",t.getX()-12),this.handle_group.querySelector(".handle.right").setAttribute("x",t.getEndX()+4);const e=this.group.querySelector(".handle.progress");e&&e.setAttribute("cx",this.$bar_progress.getEndX())}update_arrow_position(){this.arrows=this.arrows||[];for(let t of this.arrows)t.update()}}class C{constructor(t,e,s){this.gantt=t,this.from_task=e,this.to_task=s,this.calculate_path(),this.draw()}calculate_path(){let t=this.from_task.$bar.getX()+this.from_task.$bar.getWidth()/2;const e=()=>this.to_task.$bar.getX()<t+this.gantt.options.padding&&t>this.from_task.$bar.getX()+this.gantt.options.padding;for(;e();)t-=10;const s=this.gantt.options.header_height+this.gantt.options.bar_height+(this.gantt.options.padding+this.gantt.options.bar_height)*this.from_task.task._index+this.gantt.options.padding,i=this.to_task.$bar.getX()-this.gantt.options.padding/2-7,r=this.gantt.options.header_height+this.gantt.options.bar_height/2+(this.gantt.options.padding+this.gantt.options.bar_height)*this.to_task.task._index+this.gantt.options.padding,n=this.from_task.task._index>this.to_task.task._index,a=this.gantt.options.arrow_curve,d=n?1:0,p=n?-a:a,g=n?r+this.gantt.options.arrow_curve:r-this.gantt.options.arrow_curve;if(this.path=`
             M ${t} ${s}
-            V ${u}
+            V ${g}
             a ${a} ${a} 0 0 ${d} ${a} ${p}
             L ${i} ${r}
             m -5 -5
@@ -16,8 +16,8 @@
                 L ${i} ${r}
                 m -5 -5
                 l 5 5
-                l -5 5`}}draw(){this.element=g("path",{d:this.path,"data-from":this.from_task.task.id,"data-to":this.to_task.task.id})}update(){this.calculate_path(),this.element.setAttribute("d",this.path)}}class N{constructor(t,e){this.parent=t,this.custom_html=e,this.make()}make(){this.parent.innerHTML=`
+                l -5 5`}}draw(){this.element=u("path",{d:this.path,"data-from":this.from_task.task.id,"data-to":this.to_task.task.id})}update(){this.calculate_path(),this.element.setAttribute("d",this.path)}}class N{constructor(t,e){this.parent=t,this.custom_html=e,this.make()}make(){this.parent.innerHTML=`
             <div class="title"></div>
             <div class="subtitle"></div>
             <div class="pointer"></div>
-        `,this.hide(),this.title=this.parent.querySelector(".title"),this.subtitle=this.parent.querySelector(".subtitle"),this.pointer=this.parent.querySelector(".pointer")}show(t){if(!t.target_element)throw new Error("target_element is required to show popup");const e=t.target_element;if(this.custom_html){let i=this.custom_html(t.task);i+='<div class="pointer"></div>',this.parent.innerHTML=i,this.pointer=this.parent.querySelector(".pointer")}else this.title.innerHTML=t.title,this.subtitle.innerHTML=t.subtitle;let s;e instanceof HTMLElement?s=e.getBoundingClientRect():e instanceof SVGElement&&(s=t.target_element.getBBox()),this.parent.style.left=t.x-this.parent.clientWidth/2+"px",this.parent.style.top=s.y+s.height+10+"px",this.pointer.style.left=this.parent.clientWidth/2+"px",this.pointer.style.top="-15px",this.parent.style.opacity=1}hide(){this.parent.style.opacity=0,this.parent.style.left=0}}const l={HOUR:"Hour",QUARTER_DAY:"Quarter Day",HALF_DAY:"Half Day",DAY:"Day",WEEK:"Week",MONTH:"Month",YEAR:"Year"},R={HOUR:["7d","7d"],QUARTER_DAY:["7d","7d"],HALF_DAY:["7d","7d"],DAY:["1m","1m"],WEEK:["1m","1m"],MONTH:["1m","1m"],YEAR:["2y","2y"]},I={header_height:65,column_width:30,view_modes:[...Object.values(l)],bar_height:30,bar_corner_radius:3,arrow_curve:5,padding:18,view_mode:"Day",date_format:"YYYY-MM-DD",show_expected_progress:!1,popup:null,language:"en",readonly:!1,progress_readonly:!1,dates_readonly:!1,highlight_weekend:!0,scroll_to:"start",lines:"both",auto_move_label:!0,today_button:!0,view_mode_select:!1};class T{constructor(t,e,s){this.setup_wrapper(t),this.setup_options(s),this.setup_tasks(e),this.change_view_mode(),this.bind_events()}setup_wrapper(t){let e,s;if(typeof t=="string"&&(t=document.querySelector(t)),t instanceof HTMLElement)s=t,e=t.querySelector("svg");else if(t instanceof SVGElement)e=t;else throw new TypeError("Frappe Gantt only supports usage of a string CSS selector, HTML DOM element or SVG DOM element for the 'element' parameter");e?(this.$svg=e,this.$svg.classList.add("gantt")):this.$svg=g("svg",{append_to:s,class:"gantt"}),this.$container=document.createElement("div"),this.$container.classList.add("gantt-container"),this.$svg.parentElement.appendChild(this.$container),this.$container.appendChild(this.$svg),this.$popup_wrapper=document.createElement("div"),this.$popup_wrapper.classList.add("popup-wrapper"),this.$container.appendChild(this.$popup_wrapper)}setup_options(t){this.options={...I,...t},t.view_mode_padding||(t.view_mode_padding={});for(let[e,s]of Object.entries(t.view_mode_padding))typeof s=="string"&&(t.view_mode_padding[e]=[s,s]);this.options.view_mode_padding={...R,...t.view_mode_padding}}setup_tasks(t){this.tasks=t.map((e,s)=>{if(e._start=h.parse(e.start),e.end===void 0&&e.duration!==void 0&&(e.end=e._start,e.duration.split(" ").forEach(a=>{let{duration:d,scale:p}=h.parse_duration(a);e.end=h.add(e.end,d,p)})),e._end=h.parse(e.end),h.diff(e._end,e._start,"year")<0)throw Error("start of task can't be after end of task: in task #, "+(s+1));if(h.diff(e._end,e._start,"year")>10&&(e.end=null),e._index=s,!e.start&&!e.end){const o=h.today();e._start=o,e._end=h.add(o,2,"day")}if(!e.start&&e.end&&(e._start=h.add(e._end,-2,"day")),e.start&&!e.end&&(e._end=h.add(e._start,2,"day")),h.get_date_values(e._end).slice(3).every(o=>o===0)&&(e._end=h.add(e._end,24,"hour")),(!e.start||!e.end)&&(e.invalid=!0),typeof e.dependencies=="string"||!e.dependencies){let o=[];e.dependencies&&(o=e.dependencies.split(",").map(a=>a.trim().replaceAll(" ","_")).filter(a=>a)),e.dependencies=o}return e.id?typeof e.id=="string"?e.id=e.id.replaceAll(" ","_"):e.id=`${e.id}`:e.id=B(e),e}),this.setup_dependencies()}setup_dependencies(){this.dependency_map={};for(let t of this.tasks)for(let e of t.dependencies)this.dependency_map[e]=this.dependency_map[e]||[],this.dependency_map[e].push(t.id)}refresh(t){this.setup_tasks(t),this.change_view_mode()}change_view_mode(t=this.options.view_mode){this.update_view_scale(t),this.setup_dates(),this.render(),this.trigger_event("view_change",[t])}update_view_scale(t){this.options.view_mode=t,t===l.HOUR?(this.options.step=24/24,this.options.column_width=38):t===l.DAY?(this.options.step=24,this.options.column_width=38):t===l.HALF_DAY?(this.options.step=24/2,this.options.column_width=38):t===l.QUARTER_DAY?(this.options.step=24/4,this.options.column_width=38):t===l.WEEK?(this.options.step=24*7,this.options.column_width=140):t===l.MONTH?(this.options.step=24*30,this.options.column_width=120):t===l.YEAR&&(this.options.step=24*365,this.options.column_width=120)}setup_dates(){this.setup_gantt_dates(),this.setup_date_values()}setup_gantt_dates(){this.gantt_start=this.gantt_end=null;for(let a of this.tasks)(!this.gantt_start||a._start<this.gantt_start)&&(this.gantt_start=a._start),(!this.gantt_end||a._end>this.gantt_end)&&(this.gantt_end=a._end);let t,e;this.gantt_start?t=h.start_of(this.gantt_start,"day"):t=new Date,this.gantt_end?e=h.start_of(this.gantt_end,"day"):e=new Date;let s;for(let[a,d]of Object.entries(l))d===this.options.view_mode&&(s=a);const[i,r]=this.options.view_mode_padding[s].map(h.parse_duration);t=h.add(t,-i.duration,i.scale);let o;this.view_is(l.YEAR)?o="YYYY":this.view_is(l.MONTH)?o="YYYY-MM":this.view_is(l.DAY)?o="YYYY-MM-DD":o="YYYY-MM-DD HH",this.gantt_start=h.parse(h.format(t,o)),this.gantt_start.setHours(0,0,0,0),this.gantt_end=h.add(e,r.duration,r.scale)}setup_date_values(){this.dates=[];let t=null;for(;t===null||t<this.gantt_end;)t?this.view_is(l.YEAR)?t=h.add(t,1,"year"):this.view_is(l.MONTH)?t=h.add(t,1,"month"):t=h.add(t,this.options.step,"hour"):t=h.clone(this.gantt_start),this.dates.push(t)}bind_events(){this.options.readonly||(this.bind_grid_click(),this.bind_bar_events())}render(){this.clear(),this.setup_layers(),this.make_grid(),this.make_dates(),this.make_bars(),this.make_grid_extras(),this.make_arrows(),this.map_arrows_on_bars(),this.set_width(),this.set_scroll_position(this.options.scroll_to),this.update_button_position()}setup_layers(){this.layers={};const t=["grid","arrow","progress","bar","details"];for(let e of t)this.layers[e]=g("g",{class:e,append_to:this.$svg})}make_grid(){this.make_grid_background(),this.make_grid_rows(),this.make_grid_header()}make_grid_extras(){this.make_grid_highlights(),this.make_grid_ticks()}make_grid_background(){const t=this.dates.length*this.options.column_width,e=this.options.header_height+this.options.padding+(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:0,y:0,width:t,height:e,class:"grid-background",append_to:this.$svg}),_.attr(this.$svg,{height:e+this.options.padding+100,width:"100%"})}make_grid_rows(){const t=g("g",{append_to:this.layers.grid}),e=this.dates.length*this.options.column_width,s=this.options.bar_height+this.options.padding;let i=this.options.header_height+this.options.padding/2;for(let r of this.tasks)g("rect",{x:0,y:i,width:e,height:s,class:"grid-row",append_to:t}),this.options.lines==="both"||this.options.lines,i+=this.options.bar_height+this.options.padding}make_grid_header(){let t=document.createElement("div");t.style.height=this.options.header_height+10+"px",t.style.width=this.dates.length*this.options.column_width+"px",t.classList.add("grid-header"),this.$header=t,this.$container.appendChild(t);let e=document.createElement("div");e.classList.add("upper-header"),this.$upper_header=e,this.$header.appendChild(e);let s=document.createElement("div");s.classList.add("lower-header"),this.$lower_header=s,this.$header.appendChild(s),this.make_side_header()}make_side_header(){let t=document.createElement("div");if(t.classList.add("side-header"),this.options.view_mode_select){const e=document.createElement("select");e.classList.add("viewmode-select");const s=document.createElement("option");s.selected=!0,s.disabled=!0,s.textContent="Mode",e.appendChild(s);for(const i in l){const r=document.createElement("option");r.value=l[i],r.textContent=l[i],e.appendChild(r)}e.addEventListener("change",(function(){this.change_view_mode(e.value)}).bind(this)),t.appendChild(e)}if(this.options.today_button){let e=document.createElement("button");e.classList.add("today-button"),e.textContent="Today",e.onclick=this.scroll_today.bind(this),t.appendChild(e),this.$today_button=e}this.$header.appendChild(t),this.$side_header=t,window.addEventListener("scroll",this.update_button_position.bind(this)),window.addEventListener("resize",this.update_button_position.bind(this))}update_button_position(){const t=this.$container.getBoundingClientRect(),e=this.$side_header.getBoundingClientRect(),{left:s,y:i}=this.$header.getBoundingClientRect();console.log("heyy"),e.top<t.top||e.bottom>t.bottom?(this.$side_header.style.position="absolute",this.$side_header.style.top=`${t.scrollTop+e.top}px`):(this.$side_header.style.position="fixed",this.$side_header.style.top=i+10+"px");const r=Math.min(this.$header.clientWidth,this.$container.clientWidth);this.$side_header.style.left=s+this.$container.scrollLeft+r-this.$side_header.clientWidth+"px",this.$today_button.style.left=`${t.left+20}px`}make_grid_ticks(){if(!["both","vertical","horizontal"].includes(this.options.lines))return;let t=0,e=this.options.header_height+this.options.padding/2,s=(this.options.bar_height+this.options.padding)*this.tasks.length,i=g("g",{class:"lines_layer",append_to:this.layers.grid}),r=this.options.header_height+this.options.padding/2;const o=this.dates.length*this.options.column_width,a=this.options.bar_height+this.options.padding;if(this.options.lines!=="vertical")for(let d of this.tasks)g("line",{x1:0,y1:r+a,x2:o,y2:r+a,class:"row-line",append_to:i}),r+=a;if(this.options.lines!=="horizontal")for(let d of this.dates){let p="tick";this.view_is(l.DAY)&&d.getDate()===1&&(p+=" thick"),this.view_is(l.WEEK)&&d.getDate()>=1&&d.getDate()<8&&(p+=" thick"),this.view_is(l.MONTH)&&d.getMonth()%3===0&&(p+=" thick"),g("path",{d:`M ${t} ${e} v ${s}`,class:p,append_to:this.layers.grid}),this.view_is(l.MONTH)?t+=h.get_days_in_month(d)*this.options.column_width/30:t+=this.options.column_width}}highlightWeekends(){if(!(!this.view_is("Day")&&!this.view_is("Half Day"))){for(let t=new Date(this.gantt_start);t<=this.gantt_end;t.setDate(t.getDate()+1))if(t.getDay()===0||t.getDay()===6){const e=h.diff(t,this.gantt_start,"hour")/this.options.step*this.options.column_width,s=(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:e,y:this.options.header_height+this.options.padding/2,width:(this.view_is("Day")?1:2)*this.options.column_width,height:s,class:"holiday-highlight",append_to:this.layers.grid})}}}computeGridHighlightDimensions(t){let e=this.options.column_width/2;if(this.view_is(l.DAY)){let s=h.today();return{x:e+h.diff(s,this.gantt_start,"hour")/this.options.step*this.options.column_width,date:s}}for(let s of this.dates){const i=new Date,r=new Date(s),o=new Date(s);switch(t){case l.WEEK:o.setDate(s.getDate()+7);break;case l.MONTH:o.setMonth(s.getMonth()+1);break;case l.YEAR:o.setFullYear(s.getFullYear()+1);break}if(i>=r&&i<=o)return{x:e,date:r};e+=this.options.column_width}}make_grid_highlights(){if(this.options.highlight_weekend&&this.highlightWeekends(),this.view_is(l.DAY)||this.view_is(l.WEEK)||this.view_is(l.MONTH)||this.view_is(l.YEAR)){const{x:t,date:e}=this.computeGridHighlightDimensions(this.options.view_mode);if(!this.dates.find(o=>o.getTime()==e.getTime()))return;const s=this.options.header_height+this.options.padding/2,i=(this.options.bar_height+this.options.padding)*this.tasks.length;this.$current_highlight=this.create_el({top:s,left:t,height:i,classes:"current-highlight",append_to:this.$container});let r=document.getElementById(h.format(e).replaceAll(" ","_"));r&&(r.classList.add("current-date-highlight"),r.style.top=+r.style.top.slice(0,-2)-4+"px",r.style.left=+r.style.left.slice(0,-2)-8+"px")}}create_el({left:t,top:e,width:s,height:i,id:r,classes:o,append_to:a}){let d=document.createElement("div");return d.classList.add(o),d.style.top=e+"px",d.style.left=t+"px",r&&(d.id=r),s&&(d.style.width=i+"px"),i&&(d.style.height=i+"px"),a.appendChild(d),d}make_dates(){this.upper_texts_x={},this.get_dates_to_draw().forEach((t,e)=>{let s=this.create_el({left:t.lower_x,top:t.lower_y,id:t.formatted_date,classes:"lower-text",append_to:this.$lower_header});if(s.innerText=t.lower_text,s.style.left=+s.style.left.slice(0,-2)+"px",t.upper_text){this.upper_texts_x[t.upper_text]=t.upper_x;let i=document.createElement("div");i.classList.add("upper-text"),i.style.left=t.upper_x+"px",i.style.top=t.upper_y+"px",i.innerText=t.upper_text,this.$upper_header.appendChild(i),t.upper_x>this.layers.grid.getBBox().width&&i.remove()}})}get_dates_to_draw(){let t=null;return this.dates.map((s,i)=>{const r=this.get_date_info(s,t,i);return t=r,r})}get_date_info(t,e){let s=e?e.date:h.add(t,1,"day");const i={Hour_lower:h.format(t,"HH",this.options.language),"Quarter Day_lower":h.format(t,"HH",this.options.language),"Half Day_lower":h.format(t,"HH",this.options.language),Day_lower:t.getDate()!==s.getDate()?h.format(t,"D",this.options.language):"",Week_lower:t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language),Month_lower:h.format(t,"MMMM",this.options.language),Year_lower:h.format(t,"YYYY",this.options.language),Hour_upper:t.getDate()!==s.getDate()?h.format(t,"D MMMM",this.options.language):"","Quarter Day_upper":t.getDate()!==s.getDate()?h.format(t,"D MMM",this.options.language):"","Half Day_upper":t.getDate()!==s.getDate()?t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language):"",Day_upper:t.getMonth()!==s.getMonth()||!e?h.format(t,"MMMM",this.options.language):"",Week_upper:t.getMonth()!==s.getMonth()?h.format(t,"MMMM",this.options.language):"",Month_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):"",Year_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):""};let r=this.view_is(l.MONTH)?h.get_days_in_month(t)*this.options.column_width/30:this.options.column_width;const o={x:e?e.base_pos_x+e.column_width:0,lower_y:this.options.header_height-20,upper_y:this.options.header_height-50},a={Hour_lower:r/2,Hour_upper:r*12,"Quarter Day_lower":r/2,"Quarter Day_upper":r*2,"Half Day_lower":r/2,"Half Day_upper":r,Day_lower:r/2,Day_upper:r/2,Week_lower:r/2,Week_upper:r*4/2,Month_lower:r/2,Month_upper:r/2,Year_lower:r/2,Year_upper:r*30/2};return{date:t,formatted_date:h.format(t).replaceAll(" ","_"),column_width:r,base_pos_x:o.x,upper_text:this.options.lower_text?this.options.upper_text(t,this.options.view_mode,i[`${this.options.view_mode}_upper`]):i[`${this.options.view_mode}_upper`],lower_text:this.options.lower_text?this.options.lower_text(t,this.options.view_mode,i[`${this.options.view_mode}_lower`]):i[`${this.options.view_mode}_lower`],upper_x:o.x+a[`${this.options.view_mode}_upper`],upper_y:o.upper_y,lower_x:o.x+a[`${this.options.view_mode}_lower`],lower_y:o.lower_y}}make_bars(){this.bars=this.tasks.map(t=>{const e=new O(this,t);return this.layers.bar.appendChild(e.group),e})}make_arrows(){this.arrows=[];for(let t of this.tasks){let e=[];e=t.dependencies.map(s=>{const i=this.get_task(s);if(!i)return;const r=new C(this,this.bars[i._index],this.bars[t._index]);return this.layers.arrow.appendChild(r.element),r}).filter(Boolean),this.arrows=this.arrows.concat(e)}}map_arrows_on_bars(){for(let t of this.bars)t.arrows=this.arrows.filter(e=>e.from_task.task.id===t.task.id||e.to_task.task.id===t.task.id)}set_width(){const t=this.$svg.getBoundingClientRect().width,e=this.$svg.querySelector(".grid .grid-row")?this.$svg.querySelector(".grid .grid-row").getAttribute("width"):0;t<e&&this.$svg.setAttribute("width",e)}set_scroll_position(t){if(!t||t==="start")t=this.gantt_start;else{if(t==="today")return this.scroll_today();typeof t=="string"&&(t=h.parse(t))}const e=this.$svg.parentElement;if(!e)return;const i=(h.diff(t,this.gantt_start,"hour")+24)/this.options.step*this.options.column_width-this.options.column_width;e.scrollTo({left:i,behavior:"smooth"})}scroll_today(){this.set_scroll_position(new Date)}bind_grid_click(){_.on(this.$svg,"click",".grid-row, .grid-header",()=>{this.unselect_all(),this.hide_popup()})}bind_bar_events(){let t=!1,e=0,s=0,i=!1,r=!1,o=null,a=[];this.bar_being_dragged=null;function d(){return t||i||r}this.$svg.onclick=p=>{p.target.classList.contains("grid-row")&&this.unselect_all()},_.on(this.$svg,"mousedown",".bar-wrapper, .handle",(p,u)=>{const c=_.closest(".bar-wrapper",u);a.forEach(w=>w.group.classList.remove("active")),u.classList.contains("left")?i=!0:u.classList.contains("right")?r=!0:u.classList.contains("bar-wrapper")&&(t=!0),c.classList.add("active"),this.popup&&this.popup.parent.classList.add("hidden"),this.popup&&this.popup.parent.classList.add("hidden"),e=p.offsetX||p.layerX,p.offsetY||p.layerY,o=c.getAttribute("data-id"),a=[o,...this.get_all_dependent_tasks(o)].map(w=>this.get_bar(w)),this.bar_being_dragged=o,a.forEach(w=>{const b=w.$bar;b.ox=b.getX(),b.oy=b.getY(),b.owidth=b.getWidth(),b.finaldx=0})}),_.on(this.$container,"scroll",p=>{let u=document.querySelectorAll(".bar-wrapper"),c=[];const f=[];let w;s&&(w=p.currentTarget.scrollLeft-s);const b=p.currentTarget.scrollLeft/this.options.column_width*this.options.step/24;let $="D MMM";["Year","Month"].includes(this.options.view_mode)?$="YYYY":["Day","Week"].includes(this.options.view_mode)?$="MMMM":this.view_is("Half Day")?$="D":this.view_is("Hour")&&($="D MMMM");let z=h.format(h.add(this.gantt_start,b,"day"),$);const v=Array.from(document.querySelectorAll(".upper-text")).find(m=>m.textContent===z);if(v&&!v.classList.contains("current-upper")){const m=document.querySelector(".current-upper");m&&(m.classList.remove("current-upper"),m.style.left=this.upper_texts_x[m.textContent]+"px",m.style.top=this.options.header_height-50+"px"),v.classList.add("current-upper");let H=this.$svg.getBoundingClientRect();v.style.left=H.x+this.$container.scrollLeft+10+"px",v.style.top=H.y+this.options.header_height-50+"px"}Array.prototype.forEach.call(u,function(m,H){f.push(m.getAttribute("data-id"))}),w&&(c=f.map(m=>this.get_bar(m)),this.options.auto_move_label&&c.forEach(m=>{m.update_label_position_on_horizontal_scroll({x:w,sx:p.currentTarget.scrollLeft})})),s=p.currentTarget.scrollLeft}),_.on(this.$svg,"mousemove",p=>{if(!d())return;const u=(p.offsetX||p.layerX)-e;a.forEach(c=>{const f=c.$bar;f.finaldx=this.get_snap_position(u),this.hide_popup(),i?o===c.task.id?c.update_bar_position({x:f.ox+f.finaldx,width:f.owidth-f.finaldx}):c.update_bar_position({x:f.ox+f.finaldx}):r?o===c.task.id&&c.update_bar_position({width:f.owidth+f.finaldx}):t&&!this.options.readonly&&!this.options.dates_readonly&&c.update_bar_position({x:f.ox+f.finaldx})})}),document.addEventListener("mouseup",p=>{t=!1,i=!1,r=!1}),_.on(this.$svg,"mouseup",p=>{this.bar_being_dragged=null,a.forEach(u=>{u.$bar.finaldx&&(u.date_changed(),u.set_action_completed())})}),this.bind_bar_progress()}bind_bar_progress(){let t=0,e=null,s=null,i=null,r=null;_.on(this.$svg,"mousedown",".handle.progress",(o,a)=>{e=!0,t=o.offsetX||o.layerX,o.offsetY||o.layerY;const p=_.closest(".bar-wrapper",a).getAttribute("data-id");s=this.get_bar(p),i=s.$bar_progress,r=s.$bar,i.finaldx=0,i.owidth=i.getWidth(),i.min_dx=-i.getWidth(),i.max_dx=r.getWidth()-i.getWidth()}),_.on(this.$svg,"mousemove",o=>{if(!e)return;let a=(o.offsetX||o.layerX)-t;a>i.max_dx&&(a=i.max_dx),a<i.min_dx&&(a=i.min_dx);const d=s.$handle_progress;_.attr(i,"width",i.owidth+a),_.attr(d,"cx",i.getEndX()),i.finaldx=a}),_.on(this.$svg,"mouseup",()=>{e=!1,i&&i.finaldx&&(i.finaldx=0,s.progress_changed(),s.set_action_completed(),s=null,i=null,r=null)})}get_all_dependent_tasks(t){let e=[],s=[t];for(;s.length;){const i=s.reduce((r,o)=>(r=r.concat(this.dependency_map[o]),r),[]);e=e.concat(i),s=i.filter(r=>!s.includes(r))}return e.filter(Boolean)}get_snap_position(t){let e=t,s,i;return this.view_is(l.WEEK)?(s=t%(this.options.column_width/7),i=e-s+(s<this.options.column_width/14?0:this.options.column_width/7)):this.view_is(l.MONTH)?(s=t%(this.options.column_width/30),i=e-s+(s<this.options.column_width/60?0:this.options.column_width/30)):(s=t%this.options.column_width,i=e-s+(s<this.options.column_width/2?0:this.options.column_width)),i}unselect_all(){[...this.$svg.querySelectorAll(".bar-wrapper")].forEach(t=>{t.classList.remove("active")}),this.popup&&this.popup.parent.classList.remove("hidden")}view_is(t){return typeof t=="string"?this.options.view_mode===t:Array.isArray(t)?t.some(e=>this.options.view_mode===e):!1}get_task(t){return this.tasks.find(e=>e.id===t)}get_bar(t){return this.bars.find(e=>e.task.id===t)}show_popup(t){this.options.popup!==!1&&(this.popup||(this.popup=new N(this.$popup_wrapper,this.options.popup)),this.popup.show(t))}hide_popup(){this.popup&&this.popup.hide()}trigger_event(t,e){this.options["on_"+t]&&this.options["on_"+t].apply(this,e)}get_oldest_starting_date(){return this.tasks.length?this.tasks.map(t=>t._start).reduce((t,e)=>e<=t?e:t):new Date}clear(){var t,e,s,i,r,o;this.$svg.innerHTML="",(e=(t=this.$header)==null?void 0:t.remove)==null||e.call(t),(i=(s=this.$current_highlight)==null?void 0:s.remove)==null||i.call(s),(o=(r=this.popup)==null?void 0:r.hide)==null||o.call(r)}}T.VIEW_MODE=l;function B(n){return n.name+"_"+Math.random().toString(36).slice(2,12)}return T});
+        `,this.hide(),this.title=this.parent.querySelector(".title"),this.subtitle=this.parent.querySelector(".subtitle"),this.pointer=this.parent.querySelector(".pointer")}show(t){if(!t.target_element)throw new Error("target_element is required to show popup");const e=t.target_element;if(this.custom_html){let i=this.custom_html(t.task);i+='<div class="pointer"></div>',this.parent.innerHTML=i,this.pointer=this.parent.querySelector(".pointer")}else this.title.innerHTML=t.title,this.subtitle.innerHTML=t.subtitle;let s;e instanceof HTMLElement?s=e.getBoundingClientRect():e instanceof SVGElement&&(s=t.target_element.getBBox()),this.parent.style.left=t.x-this.parent.clientWidth/2+"px",this.parent.style.top=s.y+s.height+10+"px",this.pointer.style.left=this.parent.clientWidth/2+"px",this.pointer.style.top="-15px",this.parent.style.opacity=1}hide(){this.parent.style.opacity=0,this.parent.style.left=0}}const l={HOUR:"Hour",QUARTER_DAY:"Quarter Day",HALF_DAY:"Half Day",DAY:"Day",WEEK:"Week",MONTH:"Month",YEAR:"Year"},R={HOUR:["7d","7d"],QUARTER_DAY:["7d","7d"],HALF_DAY:["7d","7d"],DAY:["1m","1m"],WEEK:["1m","1m"],MONTH:["1m","1m"],YEAR:["2y","2y"]},I={header_height:65,column_width:30,view_modes:[...Object.values(l)],bar_height:30,bar_corner_radius:3,arrow_curve:5,padding:18,view_mode:"Day",date_format:"YYYY-MM-DD",show_expected_progress:!1,popup:null,language:"en",readonly:!1,progress_readonly:!1,dates_readonly:!1,highlight_weekend:!0,scroll_to:"start",lines:"both",auto_move_label:!0,today_button:!0,view_mode_select:!1};class T{constructor(t,e,s){this.setup_wrapper(t),this.setup_options(s),this.setup_tasks(e),this.change_view_mode(),this.bind_events()}setup_wrapper(t){let e,s;if(typeof t=="string"&&(t=document.querySelector(t)),t instanceof HTMLElement)s=t,e=t.querySelector("svg");else if(t instanceof SVGElement)e=t;else throw new TypeError("Frappe Gantt only supports usage of a string CSS selector, HTML DOM element or SVG DOM element for the 'element' parameter");e?(this.$svg=e,this.$svg.classList.add("gantt")):this.$svg=u("svg",{append_to:s,class:"gantt"}),this.$container=document.createElement("div"),this.$container.classList.add("gantt-container"),this.$svg.parentElement.appendChild(this.$container),this.$container.appendChild(this.$svg),this.$popup_wrapper=document.createElement("div"),this.$popup_wrapper.classList.add("popup-wrapper"),this.$container.appendChild(this.$popup_wrapper)}setup_options(t){this.options={...I,...t},t.view_mode_padding||(t.view_mode_padding={});for(let[e,s]of Object.entries(t.view_mode_padding))typeof s=="string"&&(t.view_mode_padding[e]=[s,s]);this.options.view_mode_padding={...R,...t.view_mode_padding}}setup_tasks(t){this.tasks=t.map((e,s)=>{if(e._start=h.parse(e.start),e.end===void 0&&e.duration!==void 0&&(e.end=e._start,e.duration.split(" ").forEach(a=>{let{duration:d,scale:p}=h.parse_duration(a);e.end=h.add(e.end,d,p)})),e._end=h.parse(e.end),h.diff(e._end,e._start,"year")<0)throw Error("start of task can't be after end of task: in task #, "+(s+1));if(h.diff(e._end,e._start,"year")>10&&(e.end=null),e._index=s,!e.start&&!e.end){const n=h.today();e._start=n,e._end=h.add(n,2,"day")}if(!e.start&&e.end&&(e._start=h.add(e._end,-2,"day")),e.start&&!e.end&&(e._end=h.add(e._start,2,"day")),h.get_date_values(e._end).slice(3).every(n=>n===0)&&(e._end=h.add(e._end,24,"hour")),(!e.start||!e.end)&&(e.invalid=!0),typeof e.dependencies=="string"||!e.dependencies){let n=[];e.dependencies&&(n=e.dependencies.split(",").map(a=>a.trim().replaceAll(" ","_")).filter(a=>a)),e.dependencies=n}return e.id?typeof e.id=="string"?e.id=e.id.replaceAll(" ","_"):e.id=`${e.id}`:e.id=B(e),e}),this.setup_dependencies()}setup_dependencies(){this.dependency_map={};for(let t of this.tasks)for(let e of t.dependencies)this.dependency_map[e]=this.dependency_map[e]||[],this.dependency_map[e].push(t.id)}refresh(t){this.setup_tasks(t),this.change_view_mode()}change_view_mode(t=this.options.view_mode){this.update_view_scale(t),this.setup_dates(),this.render(),this.trigger_event("view_change",[t])}update_view_scale(t){this.options.view_mode=t,t===l.HOUR?(this.options.step=24/24,this.options.column_width=38):t===l.DAY?(this.options.step=24,this.options.column_width=38):t===l.HALF_DAY?(this.options.step=24/2,this.options.column_width=38):t===l.QUARTER_DAY?(this.options.step=24/4,this.options.column_width=38):t===l.WEEK?(this.options.step=24*7,this.options.column_width=140):t===l.MONTH?(this.options.step=24*30,this.options.column_width=120):t===l.YEAR&&(this.options.step=24*365,this.options.column_width=120)}setup_dates(){this.setup_gantt_dates(),this.setup_date_values()}setup_gantt_dates(){this.gantt_start=this.gantt_end=null;for(let a of this.tasks)(!this.gantt_start||a._start<this.gantt_start)&&(this.gantt_start=a._start),(!this.gantt_end||a._end>this.gantt_end)&&(this.gantt_end=a._end);let t,e;this.gantt_start?t=h.start_of(this.gantt_start,"day"):t=new Date,this.gantt_end?e=h.start_of(this.gantt_end,"day"):e=new Date;let s;for(let[a,d]of Object.entries(l))d===this.options.view_mode&&(s=a);const[i,r]=this.options.view_mode_padding[s].map(h.parse_duration);t=h.add(t,-i.duration,i.scale);let n;this.view_is(l.YEAR)?n="YYYY":this.view_is(l.MONTH)?n="YYYY-MM":this.view_is(l.DAY)?n="YYYY-MM-DD":n="YYYY-MM-DD HH",this.gantt_start=h.parse(h.format(t,n)),this.gantt_start.setHours(0,0,0,0),this.gantt_end=h.add(e,r.duration,r.scale)}setup_date_values(){this.dates=[];let t=null;for(;t===null||t<this.gantt_end;)t?this.view_is(l.YEAR)?t=h.add(t,1,"year"):this.view_is(l.MONTH)?t=h.add(t,1,"month"):t=h.add(t,this.options.step,"hour"):t=h.clone(this.gantt_start),this.dates.push(t)}bind_events(){this.options.readonly||(this.bind_grid_click(),this.bind_bar_events())}render(){this.clear(),this.setup_layers(),this.make_grid(),this.make_dates(),this.make_bars(),this.make_grid_extras(),this.make_arrows(),this.map_arrows_on_bars(),this.set_width(),this.set_scroll_position(this.options.scroll_to),this.update_button_position()}setup_layers(){this.layers={};const t=["grid","arrow","progress","bar","details"];for(let e of t)this.layers[e]=u("g",{class:e,append_to:this.$svg})}make_grid(){this.make_grid_background(),this.make_grid_rows(),this.make_grid_header()}make_grid_extras(){this.make_grid_highlights(),this.make_grid_ticks()}make_grid_background(){const t=this.dates.length*this.options.column_width,e=this.options.header_height+this.options.padding+(this.options.bar_height+this.options.padding)*this.tasks.length;u("rect",{x:0,y:0,width:t,height:e,class:"grid-background",append_to:this.$svg}),_.attr(this.$svg,{height:e+this.options.padding+100,width:"100%"})}make_grid_rows(){const t=u("g",{append_to:this.layers.grid}),e=this.dates.length*this.options.column_width,s=this.options.bar_height+this.options.padding;let i=this.options.header_height+this.options.padding/2;for(let r of this.tasks)u("rect",{x:0,y:i,width:e,height:s,class:"grid-row",append_to:t}),this.options.lines==="both"||this.options.lines,i+=this.options.bar_height+this.options.padding}make_grid_header(){let t=document.createElement("div");t.style.height=this.options.header_height+10+"px",t.style.width=this.dates.length*this.options.column_width+"px",t.classList.add("grid-header"),this.$header=t,this.$container.appendChild(t);let e=document.createElement("div");e.classList.add("upper-header"),this.$upper_header=e,this.$header.appendChild(e);let s=document.createElement("div");s.classList.add("lower-header"),this.$lower_header=s,this.$header.appendChild(s),this.make_side_header()}make_side_header(){let t=document.createElement("div");if(t.classList.add("side-header"),this.options.view_mode_select){const e=document.createElement("select");e.classList.add("viewmode-select");const s=document.createElement("option");s.selected=!0,s.disabled=!0,s.textContent="Mode",e.appendChild(s);for(const i in l){const r=document.createElement("option");r.value=l[i],r.textContent=l[i],e.appendChild(r)}e.addEventListener("change",(function(){this.change_view_mode(e.value)}).bind(this)),t.appendChild(e)}if(this.options.today_button){let e=document.createElement("button");e.classList.add("today-button"),e.textContent="Today",e.onclick=this.scroll_today.bind(this),t.appendChild(e),this.$today_button=e}this.$header.appendChild(t),this.$side_header=t,window.addEventListener("scroll",this.update_button_position.bind(this)),window.addEventListener("resize",this.update_button_position.bind(this))}update_button_position(){const t=this.$container.getBoundingClientRect(),e=this.$side_header.getBoundingClientRect(),{left:s,y:i}=this.$header.getBoundingClientRect();e.top<t.top||e.bottom>t.bottom?(this.$side_header.style.position="absolute",this.$side_header.style.top=`${t.scrollTop+e.top}px`):(this.$side_header.style.position="fixed",this.$side_header.style.top=i+10+"px");const r=Math.min(this.$header.clientWidth,this.$container.clientWidth);this.$side_header.style.left=s+this.$container.scrollLeft+r-this.$side_header.clientWidth+"px",this.$today_button.style.left=`${t.left+20}px`}make_grid_ticks(){if(!["both","vertical","horizontal"].includes(this.options.lines))return;let t=0,e=this.options.header_height+this.options.padding/2,s=(this.options.bar_height+this.options.padding)*this.tasks.length,i=u("g",{class:"lines_layer",append_to:this.layers.grid}),r=this.options.header_height+this.options.padding/2;const n=this.dates.length*this.options.column_width,a=this.options.bar_height+this.options.padding;if(this.options.lines!=="vertical")for(let d of this.tasks)u("line",{x1:0,y1:r+a,x2:n,y2:r+a,class:"row-line",append_to:i}),r+=a;if(this.options.lines!=="horizontal")for(let d of this.dates){let p="tick";this.view_is(l.DAY)&&d.getDate()===1&&(p+=" thick"),this.view_is(l.WEEK)&&d.getDate()>=1&&d.getDate()<8&&(p+=" thick"),this.view_is(l.MONTH)&&d.getMonth()%3===0&&(p+=" thick"),u("path",{d:`M ${t} ${e} v ${s}`,class:p,append_to:this.layers.grid}),this.view_is(l.MONTH)?t+=h.get_days_in_month(d)*this.options.column_width/30:t+=this.options.column_width}}highlightWeekends(){if(!(!this.view_is("Day")&&!this.view_is("Half Day"))){for(let t=new Date(this.gantt_start);t<=this.gantt_end;t.setDate(t.getDate()+1))if(t.getDay()===0||t.getDay()===6){const e=h.diff(t,this.gantt_start,"hour")/this.options.step*this.options.column_width,s=(this.options.bar_height+this.options.padding)*this.tasks.length;u("rect",{x:e,y:this.options.header_height+this.options.padding/2,width:(this.view_is("Day")?1:2)*this.options.column_width,height:s,class:"holiday-highlight",append_to:this.layers.grid})}}}computeGridHighlightDimensions(t){let e=this.options.column_width/2;if(this.view_is(l.DAY)){let s=h.today();return{x:e+h.diff(s,this.gantt_start,"hour")/this.options.step*this.options.column_width,date:s}}for(let s of this.dates){const i=new Date,r=new Date(s),n=new Date(s);switch(t){case l.WEEK:n.setDate(s.getDate()+7);break;case l.MONTH:n.setMonth(s.getMonth()+1);break;case l.YEAR:n.setFullYear(s.getFullYear()+1);break}if(i>=r&&i<=n)return{x:e,date:r};e+=this.options.column_width}return{x:e}}make_grid_highlights(){if(this.options.highlight_weekend&&this.highlightWeekends(),this.view_is(l.DAY)||this.view_is(l.WEEK)||this.view_is(l.MONTH)||this.view_is(l.YEAR)){const{x:t,date:e}=this.computeGridHighlightDimensions(this.options.view_mode);if(!e||!this.dates.find(n=>n.getTime()==e.getTime()))return;const s=this.options.header_height+this.options.padding/2,i=(this.options.bar_height+this.options.padding)*this.tasks.length;this.$current_highlight=this.create_el({top:s,left:t,height:i,classes:"current-highlight",append_to:this.$container});let r=document.getElementById(h.format(e).replaceAll(" ","_"));r&&(r.classList.add("current-date-highlight"),r.style.top=+r.style.top.slice(0,-2)-4+"px",r.style.left=+r.style.left.slice(0,-2)-8+"px")}}create_el({left:t,top:e,width:s,height:i,id:r,classes:n,append_to:a}){let d=document.createElement("div");return d.classList.add(n),d.style.top=e+"px",d.style.left=t+"px",r&&(d.id=r),s&&(d.style.width=i+"px"),i&&(d.style.height=i+"px"),a.appendChild(d),d}make_dates(){this.upper_texts_x={},this.get_dates_to_draw().forEach((t,e)=>{let s=this.create_el({left:t.lower_x,top:t.lower_y,id:t.formatted_date,classes:"lower-text",append_to:this.$lower_header});if(s.innerText=t.lower_text,s.style.left=+s.style.left.slice(0,-2)+"px",t.upper_text){this.upper_texts_x[t.upper_text]=t.upper_x;let i=document.createElement("div");i.classList.add("upper-text"),i.style.left=t.upper_x+"px",i.style.top=t.upper_y+"px",i.innerText=t.upper_text,this.$upper_header.appendChild(i),t.upper_x>this.layers.grid.getBBox().width&&i.remove()}})}get_dates_to_draw(){let t=null;return this.dates.map((s,i)=>{const r=this.get_date_info(s,t,i);return t=r,r})}get_date_info(t,e){let s=e?e.date:h.add(t,1,"day");const i={Hour_lower:h.format(t,"HH",this.options.language),"Quarter Day_lower":h.format(t,"HH",this.options.language),"Half Day_lower":h.format(t,"HH",this.options.language),Day_lower:t.getDate()!==s.getDate()?h.format(t,"D",this.options.language):"",Week_lower:t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language),Month_lower:h.format(t,"MMMM",this.options.language),Year_lower:h.format(t,"YYYY",this.options.language),Hour_upper:t.getDate()!==s.getDate()?h.format(t,"D MMMM",this.options.language):"","Quarter Day_upper":t.getDate()!==s.getDate()?h.format(t,"D MMM",this.options.language):"","Half Day_upper":t.getDate()!==s.getDate()?t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language):"",Day_upper:t.getMonth()!==s.getMonth()||!e?h.format(t,"MMMM",this.options.language):"",Week_upper:t.getMonth()!==s.getMonth()?h.format(t,"MMMM",this.options.language):"",Month_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):"",Year_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):""};let r=this.view_is(l.MONTH)?h.get_days_in_month(t)*this.options.column_width/30:this.options.column_width;const n={x:e?e.base_pos_x+e.column_width:0,lower_y:this.options.header_height-20,upper_y:this.options.header_height-50},a={Hour_lower:r/2,Hour_upper:r*12,"Quarter Day_lower":r/2,"Quarter Day_upper":r*2,"Half Day_lower":r/2,"Half Day_upper":r,Day_lower:r/2,Day_upper:r/2,Week_lower:r/2,Week_upper:r*4/2,Month_lower:r/2,Month_upper:r/2,Year_lower:r/2,Year_upper:r*30/2};return{date:t,formatted_date:h.format(t).replaceAll(" ","_"),column_width:r,base_pos_x:n.x,upper_text:this.options.lower_text?this.options.upper_text(t,this.options.view_mode,i[`${this.options.view_mode}_upper`]):i[`${this.options.view_mode}_upper`],lower_text:this.options.lower_text?this.options.lower_text(t,this.options.view_mode,i[`${this.options.view_mode}_lower`]):i[`${this.options.view_mode}_lower`],upper_x:n.x+a[`${this.options.view_mode}_upper`],upper_y:n.upper_y,lower_x:n.x+a[`${this.options.view_mode}_lower`],lower_y:n.lower_y}}make_bars(){this.bars=this.tasks.map(t=>{const e=new O(this,t);return this.layers.bar.appendChild(e.group),e})}make_arrows(){this.arrows=[];for(let t of this.tasks){let e=[];e=t.dependencies.map(s=>{const i=this.get_task(s);if(!i)return;const r=new C(this,this.bars[i._index],this.bars[t._index]);return this.layers.arrow.appendChild(r.element),r}).filter(Boolean),this.arrows=this.arrows.concat(e)}}map_arrows_on_bars(){for(let t of this.bars)t.arrows=this.arrows.filter(e=>e.from_task.task.id===t.task.id||e.to_task.task.id===t.task.id)}set_width(){const t=this.$svg.getBoundingClientRect().width,e=this.$svg.querySelector(".grid .grid-row")?this.$svg.querySelector(".grid .grid-row").getAttribute("width"):0;t<e&&this.$svg.setAttribute("width",e)}set_scroll_position(t){if(!t||t==="start")t=this.gantt_start;else{if(t==="today")return this.scroll_today();typeof t=="string"&&(t=h.parse(t))}const e=this.$svg.parentElement;if(!e)return;const i=(h.diff(t,this.gantt_start,"hour")+24)/this.options.step*this.options.column_width-this.options.column_width;e.scrollTo({left:i,behavior:"smooth"})}scroll_today(){this.set_scroll_position(new Date)}bind_grid_click(){_.on(this.$svg,"click",".grid-row, .grid-header",()=>{this.unselect_all(),this.hide_popup()})}bind_bar_events(){let t=!1,e=0,s=0,i=!1,r=!1,n=null,a=[];this.bar_being_dragged=null;function d(){return t||i||r}this.$svg.onclick=p=>{p.target.classList.contains("grid-row")&&this.unselect_all()},_.on(this.$svg,"mousedown",".bar-wrapper, .handle",(p,g)=>{const c=_.closest(".bar-wrapper",g);a.forEach(w=>w.group.classList.remove("active")),g.classList.contains("left")?i=!0:g.classList.contains("right")?r=!0:g.classList.contains("bar-wrapper")&&(t=!0),c.classList.add("active"),this.popup&&this.popup.parent.classList.add("hidden"),this.popup&&this.popup.parent.classList.add("hidden"),e=p.offsetX||p.layerX,p.offsetY||p.layerY,n=c.getAttribute("data-id"),a=[n,...this.get_all_dependent_tasks(n)].map(w=>this.get_bar(w)),this.bar_being_dragged=n,a.forEach(w=>{const b=w.$bar;b.ox=b.getX(),b.oy=b.getY(),b.owidth=b.getWidth(),b.finaldx=0})}),_.on(this.$container,"scroll",p=>{let g=document.querySelectorAll(".bar-wrapper"),c=[];const f=[];let w;s&&(w=p.currentTarget.scrollLeft-s);const b=p.currentTarget.scrollLeft/this.options.column_width*this.options.step/24;let $="D MMM";["Year","Month"].includes(this.options.view_mode)?$="YYYY":["Day","Week"].includes(this.options.view_mode)?$="MMMM":this.view_is("Half Day")?$="D":this.view_is("Hour")&&($="D MMMM");let F=h.format(h.add(this.gantt_start,b,"day"),$);const v=Array.from(document.querySelectorAll(".upper-text")).find(m=>m.textContent===F);if(v&&!v.classList.contains("current-upper")){const m=document.querySelector(".current-upper");m&&(m.classList.remove("current-upper"),m.style.left=this.upper_texts_x[m.textContent]+"px",m.style.top=this.options.header_height-50+"px"),v.classList.add("current-upper");let H=this.$svg.getBoundingClientRect();v.style.left=H.x+this.$container.scrollLeft+10+"px",v.style.top=H.y+this.options.header_height-50+"px"}Array.prototype.forEach.call(g,function(m,H){f.push(m.getAttribute("data-id"))}),w&&(c=f.map(m=>this.get_bar(m)),this.options.auto_move_label&&c.forEach(m=>{m.update_label_position_on_horizontal_scroll({x:w,sx:p.currentTarget.scrollLeft})})),s=p.currentTarget.scrollLeft}),_.on(this.$svg,"mousemove",p=>{if(!d())return;const g=(p.offsetX||p.layerX)-e;a.forEach(c=>{const f=c.$bar;f.finaldx=this.get_snap_position(g),this.hide_popup(),i?n===c.task.id?c.update_bar_position({x:f.ox+f.finaldx,width:f.owidth-f.finaldx}):c.update_bar_position({x:f.ox+f.finaldx}):r?n===c.task.id&&c.update_bar_position({width:f.owidth+f.finaldx}):t&&!this.options.readonly&&!this.options.dates_readonly&&c.update_bar_position({x:f.ox+f.finaldx})})}),document.addEventListener("mouseup",p=>{t=!1,i=!1,r=!1}),_.on(this.$svg,"mouseup",p=>{this.bar_being_dragged=null,a.forEach(g=>{g.$bar.finaldx&&(g.date_changed(),g.set_action_completed())})}),this.bind_bar_progress()}bind_bar_progress(){let t=0,e=null,s=null,i=null,r=null;_.on(this.$svg,"mousedown",".handle.progress",(n,a)=>{e=!0,t=n.offsetX||n.layerX,n.offsetY||n.layerY;const p=_.closest(".bar-wrapper",a).getAttribute("data-id");s=this.get_bar(p),i=s.$bar_progress,r=s.$bar,i.finaldx=0,i.owidth=i.getWidth(),i.min_dx=-i.getWidth(),i.max_dx=r.getWidth()-i.getWidth()}),_.on(this.$svg,"mousemove",n=>{if(!e)return;let a=(n.offsetX||n.layerX)-t;a>i.max_dx&&(a=i.max_dx),a<i.min_dx&&(a=i.min_dx);const d=s.$handle_progress;_.attr(i,"width",i.owidth+a),_.attr(d,"cx",i.getEndX()),i.finaldx=a}),_.on(this.$svg,"mouseup",()=>{e=!1,i&&i.finaldx&&(i.finaldx=0,s.progress_changed(),s.set_action_completed(),s=null,i=null,r=null)})}get_all_dependent_tasks(t){let e=[],s=[t];for(;s.length;){const i=s.reduce((r,n)=>(r=r.concat(this.dependency_map[n]),r),[]);e=e.concat(i),s=i.filter(r=>!s.includes(r))}return e.filter(Boolean)}get_snap_position(t){let e=t,s,i;return this.view_is(l.WEEK)?(s=t%(this.options.column_width/7),i=e-s+(s<this.options.column_width/14?0:this.options.column_width/7)):this.view_is(l.MONTH)?(s=t%(this.options.column_width/30),i=e-s+(s<this.options.column_width/60?0:this.options.column_width/30)):(s=t%this.options.column_width,i=e-s+(s<this.options.column_width/2?0:this.options.column_width)),i}unselect_all(){[...this.$svg.querySelectorAll(".bar-wrapper")].forEach(t=>{t.classList.remove("active")}),this.popup&&this.popup.parent.classList.remove("hidden")}view_is(t){return typeof t=="string"?this.options.view_mode===t:Array.isArray(t)?t.some(e=>this.options.view_mode===e):!1}get_task(t){return this.tasks.find(e=>e.id===t)}get_bar(t){return this.bars.find(e=>e.task.id===t)}show_popup(t){this.options.popup!==!1&&(this.popup||(this.popup=new N(this.$popup_wrapper,this.options.popup)),this.popup.show(t))}hide_popup(){this.popup&&this.popup.hide()}trigger_event(t,e){this.options["on_"+t]&&this.options["on_"+t].apply(this,e)}get_oldest_starting_date(){return this.tasks.length?this.tasks.map(t=>t._start).reduce((t,e)=>e<=t?e:t):new Date}clear(){var t,e,s,i,r,n;this.$svg.innerHTML="",(e=(t=this.$header)==null?void 0:t.remove)==null||e.call(t),(i=(s=this.$current_highlight)==null?void 0:s.remove)==null||i.call(s),(n=(r=this.popup)==null?void 0:r.hide)==null||n.call(r)}}T.VIEW_MODE=l;function B(o){return o.name+"_"+Math.random().toString(36).slice(2,12)}return T});
diff --git a/src/bar.js b/src/bar.js
index afa469b..9cbce04 100644
--- a/src/bar.js
+++ b/src/bar.js
@@ -499,8 +499,15 @@ export default class Bar {
         const diff = date_utils.diff(task_start, gantt_start, 'hour');
         let x = (diff / step) * column_width;
 
+        /* Since the column width is based on 30,
+        we count the month-difference, multiply it by 30 for a "pseudo-month"
+        and then add the days in the month, making sure the number does not exceed 29
+        so it is within the column */
         if (this.gantt.view_is('Month')) {
-            const diff = date_utils.diff(task_start, gantt_start, 'day');
+            const diffDaysBasedOn30DayMonths = date_utils.diff(task_start, gantt_start, 'month') * 30;
+            const dayInMonth = Math.min(29, date_utils.format(task_start, "DD"));
+            const diff = diffDaysBasedOn30DayMonths + dayInMonth;
+            
             x = (diff * column_width) / 30;
         }
         this.x = x;
diff --git a/src/date_utils.js b/src/date_utils.js
index 716d2ae..77bebd0 100644
--- a/src/date_utils.js
+++ b/src/date_utils.js
@@ -25,7 +25,6 @@ export default {
     parse_duration(duration) {
         const regex = /([0-9]+)(y|m|d|h|min|s|ms)/gm;
         const matches = regex.exec(duration);
-        console.log(matches);
         if (matches !== null) {
             if (matches[2] === 'y') {
                 return { duration: parseInt(matches[1]), scale: `year` };
@@ -137,13 +136,27 @@ export default {
 
     diff(date_a, date_b, scale = DAY) {
         let milliseconds, seconds, hours, minutes, days, months, years;
-
+        
         milliseconds = date_a - date_b;
         seconds = milliseconds / 1000;
         minutes = seconds / 60;
         hours = minutes / 60;
         days = hours / 24;
-        months = days / 30;
+        // Calculate months across years
+        const yearDiff = date_a.getFullYear() - date_b.getFullYear();
+        const monthDiff = date_a.getMonth() - date_b.getMonth();
+        
+        /* If monthDiff is negative, date_b is in an earlier month than
+        date_a and thus subtracted from the year difference in months */
+        months = yearDiff * 12 + monthDiff;
+        
+        /* If date_a's (e.g. march 1st) day of the month is smaller than date_b (e.g. february 28th),
+        adjust the month difference */
+        if (date_a.getDate() < date_b.getDate()) {
+            months--;
+        }
+        
+        // Calculate years based on actual months
         years = months / 12;
 
         if (!scale.endsWith('s')) {
diff --git a/src/index.js b/src/index.js
index d085121..a2a7674 100644
--- a/src/index.js
+++ b/src/index.js
@@ -516,7 +516,7 @@ export default class Gantt {
         const { left, y } = this.$header.getBoundingClientRect();
 
         // Check if the button is scrolled out of the container vertically
-        console.log('heyy');
+
         if (
             buttonRect.top < containerRect.top ||
             buttonRect.bottom > containerRect.bottom
@@ -677,10 +677,13 @@ export default class Gantt {
                 x += this.options.column_width;
             }
         }
+
+        return { x }
     }
 
     make_grid_highlights() {
         if (this.options.highlight_weekend) this.highlightWeekends();
+
         // highlight today's | week's | month's | year's
         if (
             this.view_is(VIEW_MODE.DAY) ||
@@ -692,7 +695,7 @@ export default class Gantt {
             const { x: left, date } = this.computeGridHighlightDimensions(
                 this.options.view_mode,
             );
-            if (!this.dates.find((d) => d.getTime() == date.getTime())) return;
+            if (!date || !this.dates.find((d) => d.getTime() == date.getTime())) return;
             const top = this.options.header_height + this.options.padding / 2;
             const height =
                 (this.options.bar_height + this.options.padding) *
@@ -1292,7 +1295,7 @@ export default class Gantt {
 
     trigger_event(event, args) {
         if (this.options['on_' + event]) {
-            this.options['on_' + event].apply(this, args);
+            this.options['on_' + event].apply(this, args)
         }
     }