import pkg from "./package.json";

// Rollup plugins
import babel from "rollup-plugin-babel";
import { eslint } from "rollup-plugin-eslint";
import replace from "rollup-plugin-replace";
import uglify from "rollup-plugin-uglify-es";
import sass from "node-sass";

// PostCSS plugins
import postcssPlugin from "rollup-plugin-postcss";
import nested from "postcss-nested";
import cssnext from "postcss-cssnext";
import cssnano from "cssnano";

import postcss from "postcss";
import precss from "precss";
import CleanCSS from "clean-css";
import autoprefixer from "autoprefixer";
import fs from "fs";

fs.readFile("src/css/charts.scss", (err, css) => {
    postcss([precss, autoprefixer])
        .process(css, { from: "src/css/charts.scss", to: "src/css/charts.css" })
        .then((result) => {
            let options = {
                level: {
                    1: {
                        removeQuotes: false,
                    },
                },
            };
            let output = new CleanCSS(options).minify(result.css);
            let res = JSON.stringify(output.styles).replace(/"/g, "'");
            let js = `export const CSSTEXT = "${res.slice(1, -1)}";`;
            fs.writeFile("src/css/chartsCss.js", js, (err) => {
                if (err) console.log(err);
                else {
                    console.log("File written successfully\n");
                }
            });
        });
});

export default [
    {
        input: "src/js/index.js",
        sourcemap: true,
        output: [
            {
                file: "docs/assets/js/frappe-charts.min.js",
                format: "iife",
            },
            {
                file: pkg.browser,
                format: "umd",
            },
        ],
        name: "frappe",
        plugins: [
            postcssPlugin({
                preprocessor: (content, id) =>
                    new Promise((resolve, reject) => {
                        const result = sass.renderSync({ file: id });
                        resolve({ code: result.css.toString() });
                    }),
                extensions: [".scss"],
                plugins: [
                    nested(),
                    cssnext({ warnForDuplicates: false }),
                    cssnano(),
                ],
            }),
            eslint({
                exclude: ["src/css/**"],
            }),
            babel({
                exclude: "node_modules/**",
                plugins: ["external-helpers"],
            }),
            replace({
                exclude: "node_modules/**",
                ENV: JSON.stringify(process.env.NODE_ENV || "development"),
            }),
            uglify(),
        ],
    },
    {
        input: "docs/assets/js/index.js",
        sourcemap: true,
        output: [
            {
                file: "docs/assets/js/index.min.js",
                format: "iife",
            },
        ],
        name: "frappe",
        plugins: [
            postcssPlugin({
                preprocessor: (content, id) =>
                    new Promise((resolve, reject) => {
                        const result = sass.renderSync({ file: id });
                        resolve({ code: result.css.toString() });
                    }),
                extensions: [".scss"],
                plugins: [
                    nested(),
                    cssnext({ warnForDuplicates: false }),
                    cssnano(),
                ],
            }),
            eslint({
                exclude: ["src/css/**"],
            }),
            babel({
                exclude: "node_modules/**",
            }),
            replace({
                exclude: "node_modules/**",
                ENV: JSON.stringify(process.env.NODE_ENV || "development"),
            }),
        ],
    },
    {
        input: "src/js/chart.js",
        sourcemap: true,
        output: [
            {
                file: pkg.main,
                format: "cjs",
            },
            {
                file: pkg.module,
                format: "es",
            },
        ],
        plugins: [
            postcssPlugin({
                preprocessor: (content, id) =>
                    new Promise((resolve, reject) => {
                        const result = sass.renderSync({ file: id });
                        resolve({ code: result.css.toString() });
                    }),
                extensions: [".scss"],
                plugins: [
                    nested(),
                    cssnext({ warnForDuplicates: false }),
                    cssnano(),
                ],
            }),
            eslint({
                exclude: ["src/css/**"],
            }),
            babel({
                exclude: "node_modules/**",
            }),
            replace({
                exclude: "node_modules/**",
                ENV: JSON.stringify(process.env.NODE_ENV || "development"),
            }),
            uglify(),
        ],
    },
    {
        input: "src/js/chart.js",
        output: [
            {
                file: pkg.src,
                format: "es",
            },
        ],
        plugins: [
            postcssPlugin({
                preprocessor: (content, id) =>
                    new Promise((resolve, reject) => {
                        const result = sass.renderSync({ file: id });
                        resolve({ code: result.css.toString() });
                    }),
                extensions: [".scss"],
                extract: "dist/frappe-charts.min.css",
                plugins: [
                    nested(),
                    cssnext({ warnForDuplicates: false }),
                    cssnano(),
                ],
            }),
            eslint({
                exclude: ["src/css/**"],
            }),
            replace({
                exclude: "node_modules/**",
                ENV: JSON.stringify(process.env.NODE_ENV || "development"),
            }),
        ],
    },
];