import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const webuiConfigPath = path.resolve(__dirname, '../config/webui.json')
let webui = { api_base_url: 'http://127.0.0.1:18080', ws_url: '' }
try {
  webui = { ...webui, ...JSON.parse(fs.readFileSync(webuiConfigPath, 'utf-8')) }
} catch {
  console.warn('[vite] 未读取 config/webui.json，使用默认 API 地址')
}

// https://vite.dev/config/
export default defineConfig({
  plugins: [vue()],
  define: {
    __WEBUI_API_BASE_URL__: JSON.stringify(String(webui.api_base_url || '').trim() || 'http://127.0.0.1:18080'),
    __WEBUI_WS_URL__: JSON.stringify(webui.ws_url != null ? String(webui.ws_url) : ''),
  },
  server: {
    port: 18081,
    // 支持 Vue Router 的 history 模式
    historyApiFallback: true,
    host: '127.0.0.1'
  },
  preview: {
    port: 18081,
    historyApiFallback: true,
    host: '127.0.0.1'
  },
  build: {
    rollupOptions: {
      output: {
        manualChunks(id) {
          if (id.includes('node_modules/echarts')) {
            return 'echarts'
          }
          if (id.includes('node_modules/element-plus')) {
            return 'element-plus'
          }
          if (id.includes('node_modules/vue') || id.includes('node_modules/vue-router') || id.includes('node_modules/pinia')) {
            return 'vue-vendor'
          }
        }
      }
    },
    chunkSizeWarningLimit: 600
  }
})