import { fileURLToPath } from 'node:url'
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 {
  VueRouterAutoImports,
  getPascalCaseRouteName,
} from 'unplugin-vue-router'
import VueRouter from 'unplugin-vue-router/vite'
import { defineConfig } from 'vite'
import VueDevTools from 'vite-plugin-vue-devtools'
import MetaLayouts from 'vite-plugin-vue-meta-layouts'
import vuetify from 'vite-plugin-vuetify'
import tailwindcss from '@tailwindcss/vite'
import svgLoader from 'vite-svg-loader'
import { v2RouteName } from './src/plugins/1.router/v2RouteName'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    // Docs: https://github.com/posva/unplugin-vue-router
    // ℹ️ This plugin should be placed before vue plugin
    VueRouter({
      // Parallel /v2/* tree (RFC-WS-GUI-REDESIGN AD-G1). The second
      // routesFolder prefixes every v2 URL with /v2/; v2RouteName then
      // prefixes the route NAME with `v2-` so file-name twins across
      // pages/ and pages-v2/ cannot collide. Reverted at final cutover.
      routesFolder: [
        { src: 'src/pages' },
        { src: 'src/pages-v2', path: 'v2/' },
      ],
      getRouteName: routeNode => {
        // Convert pascal case to kebab case
        const raw = getPascalCaseRouteName(routeNode)
          .replace(/([a-z\d])([A-Z])/g, '$1-$2')
          .toLowerCase()

        // Defensive path read: unplugin-vue-router 0.8.8 TreeNode exposes
        // `.fullPath`; fall back to `.value.path` then '' so a future
        // plugin bump can't silently drop the v2- prefix. Step 5 below
        // empirically verifies the emitted name.
        const nodePath
          = (routeNode.fullPath
            ?? routeNode.value?.path
            ?? '') as string

        // getPascalCaseRouteName includes the 'v2' segment from the URL
        // path prefix set by routesFolder (e.g. 'v2/dashboard' → 'v2-dashboard').
        // Strip that prefix before v2RouteName re-adds the canonical `v2-`
        // so we get 'v2-dashboard' not 'v2-v2-dashboard'.
        const isV2
          = nodePath === '/v2'
          || nodePath === 'v2'
          || nodePath.startsWith('/v2/')
          || nodePath.startsWith('v2/')

        const base = isV2 && raw.startsWith('v2-') ? raw.slice(3) : raw

        return v2RouteName(base, nodePath)
      },
    }),
    vue(),
    VueDevTools(),
    vueJsx(),

    // Tailwind v4 (F3 — parallel-mode with Vuetify until F6). Placed after
    // vue() so it sees compiled template content; placed before vuetify()
    // so Vuetify's SCSS pipeline runs unimpeded.
    tailwindcss(),

    // Docs: https://github.com/vuetifyjs/vuetify-loader/tree/master/packages/vite-plugin
    vuetify({
      styles: {
        // Absolute URL so resolution does not depend on process cwd (fixes common SASS 404s).
        configFile: fileURLToPath(
          new URL('./src/styles/settings.scss', import.meta.url),
        ),
      },
    }),

    // Docs: https://github.com/dishait/vite-plugin-vue-meta-layouts?tab=readme-ov-file
    MetaLayouts({
      target: './src/layouts',
      defaultLayout: 'default',
    }),

    // Docs: https://github.com/antfu/unplugin-vue-components#unplugin-vue-components
    Components({
      dirs: ['src/@core/components', 'src/views/demos', 'src/components'],
      dts: true,
      resolvers: [
        componentName => {
          // Auto import `VueApexCharts`
          if (componentName === 'VueApexCharts') {
            return {
              name: 'default',
              from: 'vue3-apexcharts',
              as: 'VueApexCharts',
            }
          }
        },
      ],
    }),

    // Docs: https://github.com/antfu/unplugin-auto-import#unplugin-auto-import
    AutoImport({
      imports: [
        'vue',
        VueRouterAutoImports,
        '@vueuse/core',
        '@vueuse/math',
        'vue-i18n',
        'pinia',
      ],
      dirs: [
        './src/@core/utils',
        './src/@core/composable/',
        './src/composables/',
        './src/utils/',
        './src/plugins/*/composables/*',
      ],
      vueTemplate: true,

      // ℹ️ Disabled to avoid confusion & accidental usage
      ignore: ['useCookies', 'useStorage'],
    }),

    svgLoader(),
  ],
  define: { 'process.env': {} },
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url)),
      '@themeConfig': fileURLToPath(
        new URL('./themeConfig.ts', import.meta.url),
      ),
      '@core': fileURLToPath(new URL('./src/@core', import.meta.url)),
      '@layouts': fileURLToPath(new URL('./src/@layouts', import.meta.url)),
      '@images': fileURLToPath(
        new URL('./src/assets/images/', import.meta.url),
      ),
      '@styles': fileURLToPath(
        new URL('./src/assets/styles/', import.meta.url),
      ),
      '@configured-variables': fileURLToPath(
        new URL(
          './src/assets/styles/variables/_template.scss',
          import.meta.url,
        ),
      ),
    },
  },
  server: {
    port: 5174,
    proxy: {
      '/api': {
        target: 'http://localhost:8000',
        changeOrigin: true,
      },
    },
    warmup: {
      clientFiles: ['./src/pages/**/*.vue', './src/components/**/*.vue'],
    },
  },
  build: {
    chunkSizeWarningLimit: 5000,

    // RFC-WS-7 §3.5 — sourcemaps generated at build, uploaded to GlitchTip
    // by deploy.sh, then `find dist -name '*.map' -delete` strips them
    // before nginx serves dist/. No public-mapped sources on production.
    sourcemap: true,
  },
  optimizeDeps: {
    exclude: ['vuetify'],
    entries: ['./src/**/*.vue'],
    force: true,
  },
})