import path from 'node:path'

import { defineConfig, loadEnv } from 'vite'
import detectPort from 'detect-port'
import vue from '@vitejs/plugin-vue'
import vueJsx from '@vitejs/plugin-vue-jsx'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { createSvgIconsPlugin } from 'vite-plugin-svg-icons'
import { createStyleImportPlugin, VxeTableResolve } from 'vite-plugin-style-import'
import Unocss from 'unocss/vite'
import { lazyImport, VxeResolver } from 'vite-plugin-lazy-import'
import { createProjectShellAliases, resolveProjectShellComponentsDir } from './vite.shell-aliases'

const DEFAULT_BACKEND_TARGET = 'http://127.0.0.1:8086'

/**
 * Docker 开发会把 VITE_BASE_PATH 设为 host.docker.internal；若宿主机直接 pnpm dev 仍残留
 * .env.development.local，代理会连不上并导致登录页「服务器错误」。非 Docker 时自动回退本机地址。
 */
function resolveViteBackendTarget(rawTarget: string | undefined): string {
  const target = (rawTarget || DEFAULT_BACKEND_TARGET).trim()
  const isDockerDev = process.env.DOCKER_DEV === '1' || process.env.DOCKER_DEV === 'true'
  if (!isDockerDev && target.includes('host.docker.internal')) {
    console.warn(
      `[vite] VITE_BASE_PATH=${target} 仅适用于 Docker 容器内；已回退代理至 ${DEFAULT_BACKEND_TARGET}`
    )
    return DEFAULT_BACKEND_TARGET
  }
  return target
}

export default defineConfig(async ({ mode }) => {
  const DEFAULT_PORT = 9012
  const env = loadEnv(mode, process.cwd(), '')
  const backendTarget = resolveViteBackendTarget(env.VITE_BASE_PATH)
  const port = await detectPort(DEFAULT_PORT)
  const shellComponentsDir = resolveProjectShellComponentsDir()
  const shellSrc = path.join(process.cwd(), 'node_modules/@fskj-admin/shell/src')
  const shellSrcPattern = new RegExp(shellSrc.replace(/[\\/]/g, '[\\\\/]'))

  return {
    base: '/',
    define: {
      'import.meta.env.VITE_BASE_PATH': JSON.stringify(backendTarget)
    },
    plugins: [
      vue(),
      vueJsx(),
      Unocss(),
      AutoImport({
        imports: ['vue', 'vue-router', 'pinia', '@vueuse/core'],
        dts: 'src/auto-import.d.ts',
        // shell 与业务仓 SFC 均依赖 auto-import（ref/computed 等）；须覆盖 alias 解析后的 shell 绝对路径
        include: [
          shellSrcPattern,
          /[\\/]node_modules[\\/]@fskj-admin[\\/]shell[\\/]/,
          /[\\/]src[\\/]/,
          /\.vue$/,
          /\.vue\?vue/,
          /\.vue\?vue&type=script/
        ],
        // 默认 exclude 含 /node_modules/，会跳过 npm 内 @fskj-admin/shell，导致 BasicLayout 等 computed 未注入
        exclude: [
          /[\\/]node_modules[\\/](?!.*@fskj-admin[\\/]shell[\\/])/,
          /[\\/]\.git[\\/]/
        ],
        viteOptimizeDeps: true
      }),
      Components({
        dirs: ['src/components', shellComponentsDir],
        extensions: ['vue'],
        dts: 'src/components.d.ts',
        // 与 AutoImport 一致：须处理 npm 内 @fskj-admin/shell 的 SFC，否则 platformops 等页
        // 使用的 BasicLeftTree / ProTable 等壳组件无法自动注入（Failed to resolve component）
        include: [
          shellSrcPattern,
          /[\\/]node_modules[\\/]@fskj-admin[\\/]shell[\\/]/,
          /[\\/]src[\\/]/,
          /\.vue$/,
          /\.vue\?vue/,
          /\.vue\?vue&type=script/
        ],
        exclude: [
          /[\\/]node_modules[\\/](?!.*@fskj-admin[\\/]shell[\\/])/,
          /[\\/]\.git[\\/]/
        ]
      }),
      createSvgIconsPlugin({
        iconDirs: [path.resolve(process.cwd(), 'src/assets/svg')],
        symbolId: 'icon-[dir]-[name]'
      }),
      createStyleImportPlugin({
        resolves: [VxeTableResolve()]
      }),
      lazyImport({
        resolvers: [
          VxeResolver({ libraryName: 'vxe-table' }),
          VxeResolver({ libraryName: 'vxe-pc-ui' })
        ]
      })
    ],
    css: {
      preprocessorOptions: {
        scss: {
          silenceDeprecations: ['legacy-js-api']
        }
      }
    },
    resolve: {
      alias: [
        {
          find: '@/components/form/ElImageUploadOne.vue',
          replacement: path.resolve(process.cwd(), 'src/components/form/ElImageUploadOne.vue')
        },
        {
          find: '@/components/form/ElImageUploadMore.vue',
          replacement: path.resolve(process.cwd(), 'src/components/form/ElImageUploadMore.vue')
        },
        {
          find: '@/components/form/ImageUploadTip.vue',
          replacement: path.resolve(process.cwd(), 'src/components/form/ImageUploadTip.vue')
        },
        {
          find: '@/components/form/ElEditor.vue',
          replacement: path.resolve(process.cwd(), 'src/components/form/ElEditor.vue')
        },
        {
          find: '@/components/layout/GlobalMainNav.vue',
          replacement: path.resolve(process.cwd(), 'src/components/layout/GlobalMainNav.vue')
        },
        {
          find: '@/utils/formatMainNavLabel',
          replacement: path.resolve(process.cwd(), 'src/utils/formatMainNavLabel.ts')
        },
        // pnpm + shell 源码直引时 dedupe 可能失效，须强制单例 pinia/vue-router
        {
          find: 'pinia',
          replacement: path.resolve(process.cwd(), 'node_modules/pinia/dist/pinia.mjs')
        },
        {
          find: 'vue-router',
          replacement: path.resolve(process.cwd(), 'node_modules/vue-router/dist/vue-router.mjs')
        },
        // xe-utils 当前安装版本无 es 构建，改走 dist UMD 构建
        {
          find: 'xe-utils',
          replacement: path.resolve(process.cwd(), 'node_modules/xe-utils/dist/xe-utils.umd.js')
        },
        // dayjs 主入口为 UMD（dayjs.min.js），element-plus ESM 需 default 导出
        {
          find: /^dayjs\/plugin\/(.+)\.js$/,
          replacement: path.resolve(process.cwd(), 'node_modules/dayjs/esm/plugin/$1/index.js')
        },
        {
          find: /^dayjs$/,
          replacement: path.resolve(process.cwd(), 'node_modules/dayjs/esm/index.js')
        },
        ...createProjectShellAliases()
      ],
      // monorepo + pnpm 下避免 pinia/vue 多实例，否则 getActivePinia() 报错
      dedupe: ['pinia', 'vue', 'vue-router', '@vue/runtime-core']
    },
    optimizeDeps: {
      exclude: [
        '@fskj-admin/shell',
        '@shell/router/appRouterHolder',
        '@shell/router/createAppRouter',
        '@shell/router/businessRouterExtension',
        '@shell/home/homeExtension',
        '@shell/bootstrap/createAdminApp',
        '@shell/router/platformOpsRouterExtension',
        '@shell/platformops/register',
        '@shell/platformops/essentialRoutes',
        '@shell/stores/user',
        '@shell/stores/router',
        '@shell/stores/menu',
        '@shell/stores/theme',
        '@shell/stores/permission',
        '@/stores/user',
        '@/stores/permission',
        '@shell/utils/utils'
      ],
      // shell 被 exclude 后其 CJS 依赖须单独预打包；与框架仓对齐，避免 dev 首次点「菜单配置」触发 optimized dependencies changed 整页刷新
      entries: [
        './index.html',
        './src/main.ts',
        './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/index.vue',
        './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/subsystemMenu.vue'
      ],
      include: [
        'pinia',
        'vue',
        'vue-router',
        'xe-utils',
        'nprogress',
        'lodash',
        'jsencrypt',
        'echarts',
        'vue-cropper',
        'splitpanes',
        '@element-plus/icons-vue',
        'element-plus',
        'vxe-table',
        'vxe-pc-ui',
        '@vxe-ui/plugin-render-element'
      ],
      needsInterop: ['xe-utils', 'nprogress', 'lodash']
    },
    server: {
      host: '0.0.0.0',
      port,
      open: '/#/login',
      // dev 启动时预热应用维护/菜单配置相关 shell 页面，减少首次点击菜单配置时的依赖发现与 reload
      warmup: {
        clientFiles: [
          './src/main.ts',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/index.vue',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/subsystemMenu.vue',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/components/menuButton.vue',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/components/menuList.vue',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/components/menuForm.vue',
          './node_modules/@fskj-admin/shell/src/platformops/views/subsystem/components/menuPermission.vue'
        ]
      },
      proxy: {
        [env.VITE_BASE_API]: {
          target: backendTarget,
          changeOrigin: true
          // 勿 strip /admin：后端 jeesharp.web.adminPath=/admin，登录等白名单为 /admin/login
        }
      }
    },
    build: {
      chunkSizeWarningLimit: 1500
    }
  }
})