import { defineConfig, mergeConfig, loadEnv } from 'vite'
import { dirname, resolve } from 'path'
import { fileURLToPath } from 'url'
import baseViteConfig from './vite.config'

const __dirname = dirname(fileURLToPath(import.meta.url))

/** 代理只能用「协议+主机+端口」，不能带 path；否则转发路径容易错 */
function devProxyTarget(apiBaseUrl) {
	if (!apiBaseUrl || typeof apiBaseUrl !== 'string') {
		return ''
	}
	try {
		const u = new URL(apiBaseUrl)
		return `${u.protocol}//${u.host}`
	} catch {
		return ''
	}
}

// 与 portal-ui 根目录一致加载 .env*（ESM 下必须用 import.meta.url，不能依赖未定义的 __dirname）
const env = loadEnv('development', resolve(__dirname))

const apiBase = env.VITE_API_URL?.trim() || ''
const proxyTarget = devProxyTarget(apiBase)

if (!proxyTarget) {
	console.warn(
		'[vite] VITE_API_URL 未配置或无效，/dev-api 代理未启用。请在 .env.development 中设置，例如：VITE_API_URL=http://47.86.170.114:8011/api'
	)
}

const devConfig = defineConfig({
	server: {
		host: env.VITE_HOST || 'localhost',
		port: Number(env.VITE_PORT) || 8081,
		open: true,
		watch: {
			ignored: [/node_modules/, /dist/, /deploy/]
		},
		...(proxyTarget
			? {
					proxy: {
						'/dev-api': {
							target: proxyTarget,
							ws: false,
							changeOrigin: true,
							rewrite: (path) => path.replace(/^\/dev-api/, '')
						}
					}
				}
			: {})
	}
})
export default mergeConfig(baseViteConfig, devConfig)