import { defineConfig, loadEnv } from "vite";
import uni from "@dcloudio/vite-plugin-uni";
import { UnifiedViteWeappTailwindcssPlugin } from "weapp-tailwindcss/vite";
import tailwindcss from "@tailwindcss/postcss";
import nvwaVitePlugin from "@nvwa-app/vite-plugin";

const isH5 = process.env.UNI_PLATFORM === "h5";
const isApp = process.env.UNI_PLATFORM === "app";
const WeappTailwindcssDisabled = isH5 || isApp;

export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), "");
  console.log("env", env);
  
  // 检查是否启用调试构建模式（通过环境变量控制）
  const isDebugBuild = env.NVWA_BUILD_DEBUG === "true" || process.env.NVWA_BUILD_DEBUG === "true";
  
  return {
    define: {
      "import.meta.env.NVWA_BASE_URL": JSON.stringify(env.NVWA_BASE_URL),
    },
    plugins: [
      uni(),
      nvwaVitePlugin(),
      UnifiedViteWeappTailwindcssPlugin(
        {
          disabled: WeappTailwindcssDisabled,
          rem2rpx: true,
        },
      ),
    ],
    css: {
      postcss: {
        plugins: [
          tailwindcss(),
        ],
      },
    },
    build: {
      // 调试模式下禁用压缩和混淆，保持代码可读性
      minify: isDebugBuild ? false : "esbuild",
      // 生成 source maps 以便调试
      sourcemap: isDebugBuild ? true : false,
      // 保持代码分割，不合并成单个大文件
      rollupOptions: {
        output: {
          // 调试模式下保持文件名的可读性（不使用 hash，便于调试）
          entryFileNames: isDebugBuild ? "assets/[name].js" : "assets/[name]-[hash].js",
          chunkFileNames: isDebugBuild ? "assets/[name].js" : "assets/[name]-[hash].js",
          assetFileNames: isDebugBuild ? "assets/[name].[ext]" : "assets/[name]-[hash].[ext]",
        },
      },
      // 调试模式下不压缩 CSS
      cssMinify: !isDebugBuild,
      // 增加 chunk 大小警告阈值（调试模式下可能文件较大）
      chunkSizeWarningLimit: isDebugBuild ? 2000 : 500,
    },
  };
});