import { fileURLToPath, URL } from 'node:url'
import { readFileSync } from 'node:fs'

import { defineConfig, loadEnv } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueDevTools from 'vite-plugin-vue-devtools'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { VantResolver } from 'unplugin-vue-components/resolvers'
import { bumpVersion } from './plugins/bump-version'

// https://vite.dev/config/
export default defineConfig(({ command, mode }) => {
  const env = loadEnv(mode, process.cwd(), '')
  const apiBaseUrl = env.VITE_API_BASE_URL || '/api'
  const appVersion = getAppVersion(mode, command)
  const buildTime = getBuildTime(command)
  const enableVueDevTools =
    command === 'serve' && env.VITE_ENABLE_VUE_DEVTOOLS !== 'false'

  return {
    base: './',
    define: {
      __APP_VERSION__: JSON.stringify(appVersion),
      __APP_BUILD_TIME__: JSON.stringify(buildTime),
    },
    plugins: [
      vue(),
      enableVueDevTools && vueDevTools(),

      // 自动导入 Vue / Vue Router / Pinia / VueUse / Vant 的 API，省去手动 import
      AutoImport({
        imports: [
          'vue',
          'vue-router',
          'pinia',
          '@vueuse/core',
          {
            vant: ['showDialog', 'showConfirmDialog'],
          },
        ],
        dts: 'src/auto-imports.d.ts',
        vueTemplate: true,
      }),

      // 自动导入组件；样式已在 main.ts 全量引入，避免懒加载页面重复注入样式并改变级联顺序
      Components({
        resolvers: [VantResolver({ importStyle: false })],
        dts: 'src/components.d.ts',
      }),

      // 打包时自增版本号，并将 plugin.properties 输出到 dist/
      bumpVersion(mode, buildTime),
    ],

    server: {
      host: '0.0.0.0',
      port: 8080,
      strictPort: true,
      open: true,

      proxy: {
        '/oms': {
          target: 'http://127.0.0.1:3011',
          changeOrigin: true,
        },
      },
    },

    resolve: {
      alias: {
        '@': fileURLToPath(new URL('./src', import.meta.url)),
      },
    },

    build: {
      outDir: 'dist/www',
    },
  }
})

function getAppVersion(mode: string, command: 'build' | 'serve') {
  const content = readFileSync(`src/config/plugin.properties.${mode}`, 'utf-8')

  if (command === 'build') {
    const versionCode = content.match(/version_code=(\d+)/)?.[1]

    if (versionCode) {
      return toVersionName(Number(versionCode) + 1)
    }
  }

  return content.match(/version_name=([^;\n]+)/)?.[1] || '0.0.0'
}

function toVersionName(versionCode: number) {
  const major = Math.floor(versionCode / 10000)
  const minor = Math.floor((versionCode % 10000) / 100)
  const patch = versionCode % 100

  return `${major}.${minor}.${patch}`
}

function getBuildTime(command: 'build' | 'serve') {
  if (command !== 'build') return '开发模式（尚未构建）'

  return new Date(Date.now() + 8 * 60 * 60 * 1000)
    .toISOString()
    .slice(0, 19)
    .replace('T', ' ')
}