import { defineStore } from 'pinia'
import { computed, ref } from 'vue'
import type { Router } from 'vue-router'
import axios from 'axios'
import { t } from '../i18n'
import { registerToolRoute, unregisterToolRoute, registerAllToolRoutes, ensureToolRoutes } from '../utils/dynamicRoutes'
import { get_session_api_headers } from '../api/auth'

export interface Tool {
  id: string
  name: string
  description?: string
  category?: string
  icon?: string
  color?: string
  type?: 'route' | 'url'
  routeName?: string
  url?: string
  order?: number
  isDefault?: boolean
  hidden?: boolean
  // 市场工具相关
  fromMarketplace?: boolean
  marketplaceId?: string  // 市场的唯一ID（用于识别）
  toolName?: string  // 实际的 tool_name（用于删除文件系统）
  version?: string
  author?: string
  rating?: number
  downloads?: number
  // 路由相关（可选，用于动态路由注册）
  componentPath?: string  // 组件路径（相对于 src/views）
  routePath?: string      // 路由路径（如 'tools/my-tool'）
}

const STORAGE_KEY = 'tools.userItems'
const DELETED_DEFAULT_TOOLS_KEY = 'tools.deletedDefaultTools'

// 默认工具列表（硬编码，一行一个，方便添加）
function getDefaultTools(): Tool[] {
  return [
    {
      id: 'remove-background',
      name: t('Remove Background'),
      description: t('Remove background from images using AI technology'),
      category: 'Image Processing',
      icon: 'photo-edit',
      color: '#e5e7eb',
      type: 'route',
      routeName: 'RemoveBackground',
      order: 1,
      isDefault: true,
      toolName: 'remove_background'
    },
    // 在这里添加更多默认工具，每行一个：
    // {
    //   id: 'tool-id-2',
    //   name: t('Tool Name'),
    //   description: t('Tool description'),
    //   category: 'Category',
    //   icon: 'icon-name',
    //   color: '#e5e7eb',
    //   type: 'route',
    //   routeName: 'RouteName',
    //   order: 2,
    //   isDefault: true,
    //   toolName: 'tool_name'
    // },
  ]
}

function loadUserTools(): Tool[] {
  try {
    const raw = localStorage.getItem(STORAGE_KEY)
    if (!raw) return []
    const parsed = JSON.parse(raw)
    if (Array.isArray(parsed)) return parsed
    return []
  } catch {
    return []
  }
}

function saveUserTools(tools: Tool[]) {
  const userTools = tools.filter(t => !t.isDefault)
  localStorage.setItem(STORAGE_KEY, JSON.stringify(userTools))
}

function loadDeletedDefaultTools(): string[] {
  try {
    const raw = localStorage.getItem(DELETED_DEFAULT_TOOLS_KEY)
    if (!raw) return []
    return JSON.parse(raw)
  } catch {
    return []
  }
}

function saveDeletedDefaultTools(deletedIds: string[]) {
  localStorage.setItem(DELETED_DEFAULT_TOOLS_KEY, JSON.stringify(deletedIds))
}

export const useToolsStore = defineStore('tools', () => {
  const userTools = ref<Tool[]>(loadUserTools())
  const deletedDefaultToolIds = ref<string[]>(loadDeletedDefaultTools())

  const allTools = computed(() => {
    const defaultTools = getDefaultTools()
      .filter(tool => !deletedDefaultToolIds.value.includes(tool.id))
      .map(tool => ({ ...tool, isDefault: true }))
    
    const userToolsList = [...userTools.value]
      .map(tool => ({ ...tool, isDefault: false }))
    
    return [
      ...defaultTools.sort((a, b) => (a.order ?? 0) - (b.order ?? 0)),
      ...userToolsList.sort((a, b) => (a.order ?? 0) - (b.order ?? 0))
    ]
  })

  // 添加用户工具
  function addUserTool(tool: Tool, router?: Router, componentPath?: string) {
    const defaultToolsCount = getDefaultTools().filter(
      t => !deletedDefaultToolIds.value.includes(t.id)
    ).length
    
    // 确保工具具有 routeName 和 routePath（如果缺失则自动生成）
    // 这样保存到 localStorage 的数据也会包含这些字段
    const toolWithRoutes = ensureToolRoutes({ ...tool })
    
    toolWithRoutes.order = defaultToolsCount + userTools.value.length + 1
    toolWithRoutes.isDefault = false
    userTools.value.push(toolWithRoutes)
    saveUserTools(userTools.value)
    
    // 注册路由（如果提供了 router）
    if (router) {
      registerToolRoute(router, toolWithRoutes, componentPath)
    }
  }

  function updateUserTool(toolId: string, updates: Partial<Tool>) {
    const index = userTools.value.findIndex(t => t.id === toolId)
    if (index >= 0) {
      userTools.value[index] = { ...userTools.value[index], ...updates, isDefault: false }
      saveUserTools(userTools.value)
    }
  }

  // 删除工具（支持用户工具和默认工具）
  async function deleteUserTool(toolId: string, router?: Router) {
    // 查找用户工具
    let tool = userTools.value.find(t => t.id === toolId)
    let isDefaultTool = false
    
    // 如果不是用户工具，查找默认工具
    if (!tool) {
      tool = getDefaultTools().find(t => t.id === toolId)
      isDefaultTool = true
    }
    
    let toolName: string | null = null
    
    if (tool) {
      if (tool.toolName) {
        toolName = tool.toolName
      } else if (tool.componentPath) {
        const match = tool.componentPath.match(/tools\/([^\/]+)\//)
        if (match && match[1]) {
          toolName = match[1]
        }
      }
    }
    
    if (toolName) {
      try {
        await axios.post(`/jingrow/uninstall-tool/${toolName}`, {}, {
          headers: {
            ...get_session_api_headers()
          }
        })
      } catch (error: any) {
        console.error('删除工具文件失败:', error.response?.data || error.message || '未知错误')
      }
    }
    
    if (isDefaultTool) {
      // 删除默认工具：添加到已删除列表
      if (!deletedDefaultToolIds.value.includes(toolId)) {
        deletedDefaultToolIds.value.push(toolId)
        saveDeletedDefaultTools(deletedDefaultToolIds.value)
      }
    } else {
      // 删除用户工具：从列表中移除
      userTools.value = userTools.value.filter(t => t.id !== toolId)
      const defaultToolsCount = getDefaultTools().filter(
        t => !deletedDefaultToolIds.value.includes(t.id)
      ).length
      userTools.value.forEach((t, index) => {
        t.order = defaultToolsCount + index + 1
      })
      saveUserTools(userTools.value)
    }
    
    if (tool && tool.routeName && router) {
      unregisterToolRoute(router, tool.routeName)
    }
  }

  function updateUserToolsOrder(newOrder: Tool[]) {
    const defaultToolsCount = getDefaultTools().filter(
      t => !deletedDefaultToolIds.value.includes(t.id)
    ).length
    
    newOrder.forEach((tool, index) => {
      tool.order = defaultToolsCount + index + 1
    })
    
    userTools.value = newOrder
    saveUserTools(userTools.value)
  }

  function initToolRoutes(router: Router) {
    const defaultTools = getDefaultTools()
      .filter(tool => !deletedDefaultToolIds.value.includes(tool.id))
      .map(tool => ({ ...tool, isDefault: true }))
    
    const allToolsToRegister = [...defaultTools, ...userTools.value]
    registerAllToolRoutes(router, allToolsToRegister)
  }

  return {
    userTools,
    allTools,
    addUserTool,
    updateUserTool,
    deleteUserTool,
    updateUserToolsOrder,
    getDefaultTools,
    initToolRoutes
  }
})