import { fileURLToPath, URL } from 'node:url';
import { defineConfig } from 'vite';
import uniPlugin from '@dcloudio/vite-plugin-uni';

const uni = typeof uniPlugin === 'function' ? uniPlugin : uniPlugin.default;
const devPort = Number(process.env.PORT) || 5175;
const devHost = process.env.HOST || '0.0.0.0';
// 裸跑 npm run dev（如 Kimi Work 预览）时代理到本地 8080 后端；
// 走 portless（scripts/dev.sh）时由 VITE_PROXY_TARGET 显式指向 https://wygj-api.localhost
const proxyTarget = process.env.VITE_PROXY_TARGET || 'http://127.0.0.1:8080';
// 代理到线上等已带 /dev-api 前缀的网关时，设 VITE_PROXY_KEEP_PREFIX=1 保留前缀
const keepProxyPrefix = process.env.VITE_PROXY_KEEP_PREFIX === '1';
// DCloud's current App compiler imports two internal lifecycle helpers from
// `vue`. Public Vue packages intentionally do not export them, so provide a
// narrow App-only compatibility module. H5 continues to resolve the normal
// Vue package.
const appVueRuntimeShim = process.env.UNI_PLATFORM === 'app'
  ? fileURLToPath(new URL('./src/shims/vue-app-runtime.js', import.meta.url))
  : undefined;

const proxy = {
  '/dev-api': {
    target: proxyTarget,
    changeOrigin: true,
    secure: false,
    rewrite: (path) => (keepProxyPrefix ? path : path.replace(/^\/dev-api/, ''))
  }
};

export default defineConfig({
  plugins: [uni()],
  resolve: appVueRuntimeShim
    ? { alias: { vue: appVueRuntimeShim } }
    : undefined,
  server: {
    host: devHost,
    port: devPort,
    strictPort: true,
    proxy
  },
  preview: {
    host: devHost,
    port: devPort,
    strictPort: true,
    proxy
  }
});