import { execSync } from "child_process"
import fs from "fs"
import path from "path"
import react from "@vitejs/plugin-react"
import { defineConfig } from "vite"

// 构建指纹：版本 + commit hash + 构建时间（设置页「关于」展示，排障救命）
const pkg = JSON.parse(fs.readFileSync(path.resolve(__dirname, "package.json"), "utf-8"))
const gitHash = (() => {
  try { return execSync("git rev-parse --short HEAD").toString().trim() } catch { return "unknown" }
})()
const buildTime = new Date().toISOString()
const APP_VERSION = `${pkg.version}+${gitHash} (${buildTime.slice(0, 16)})`

export default defineConfig({
  base: '/',
  define: {
    __APP_VERSION__: JSON.stringify(APP_VERSION),
  },
  plugins: [react()],
  build: {
    rollupOptions: {
      output: {
        manualChunks(id) {
          if (!id.includes('node_modules')) return;
          if (id.includes('react') || id.includes('react-router')) return 'vendor-react';
          if (id.includes('@codemirror')) return 'vendor-editor';
          if (id.includes('@radix-ui')) return 'vendor-ui';
        },
      },
    },
  },
  server: {
    port: 5173,
    strictPort: true,
    proxy: {
      '/api': {
        target: 'http://localhost:9000',
        changeOrigin: true,
      },
    },
  },
  resolve: {
    alias: {
      "@": path.resolve(__dirname, "./src"),
    },
  },
});