import { ConfigEnv, UserConfig, defineConfig } from "vite";
import { createHtmlPlugin } from "vite-plugin-html";
import vue from "@vitejs/plugin-vue";
import path, { resolve } from "path";
import { createSvgIconsPlugin } from "vite-plugin-svg-icons";
import { viteMockServe } from "vite-plugin-mock";
import ViteAutoImport from "unplugin-auto-import/vite";

import UnoCSS from "@unocss/vite";
import presetUno from "@unocss/preset-uno";

import presetRemToPx from "@unocss/preset-rem-to-px";

// 构建输出：兼容既有 CI 的 mode 子目录（build:prod → dist/prod、build:ld → dist/ld、build:base → dist/base）；
// 新命令 `vite build`（默认 production mode）→ dist/。.env.base/ld/prod 均已删除，
// 各 mode 产物内容完全相同（VITE_* 恒 undefined），不存在按环境烧值问题。
// dev 读 .env.dev（import.meta.env.VITE_*）；build 时 .env/.env.production 不存在 → VITE_* 全 undefined，
// host.config.ts 自动跳过 → 线上仅走 env-config 接口。注意：勿新建 .env.production / .env。
export default defineConfig(({ command, mode }: ConfigEnv): UserConfig => {
    const subDir = mode === "ld" || mode === "prod" ? mode : mode === "base" ? mode : "";
    const outDir = command === "build" && subDir ? `dist/${subDir}` : "dist";

    return {
        plugins: [
        vue(),
        createSvgIconsPlugin({
            iconDirs: [resolve(process.cwd(), "src/assets/icons")],
            symbolId: "icon-[dir]-[name]", // symbol的id
            inject: "body-last", // 插入的位置
            customDomId: "__svg__icons__dom__", // svg的id
        }),
        viteMockServe({
            mockPath: "./src/assets/mock",
        }),
        ViteAutoImport({
            imports: [
                "vue",
                "vue-router",
                {
                    "view-ui-plus": ["Button", "Table", "Modal", "Message", "Form", "FormItem", "Input", "Select"],
                },
                {
                    from: "alova/client",
                    imports: ["usePagination", "useRequest", "useWatcher", "useForm"],
                },
            ],
            dts: "./src/auto-imports.d.ts",
            dirs: ["src/api"], // 自动导入 hooks
        }),
        createHtmlPlugin({
            minify: true,
            pages: [
                {
                    entry: "src/main.ts",
                    template: "index.html",
                    filename: "index.html",
                    injectOptions: {
                        data: {
                            title: "用户中心",
                            injectScript: ``,
                        },
                    },
                },
            ],
        }),
        UnoCSS({
            presets: [
                presetUno(), // 核心预设（Tailwind风格）
                presetRemToPx({ baseFontSize: 4 }), // 1单位=1px（去rem化）
            ],
            shortcuts: {
                // 布局
                "flex-center": "flex items-center justify-center",
                // 常用组件
                btn: "px-16px py-8px rounded-4px cursor-pointer transition-all duration-200",
                "btn-primary": "bg-blue-600 text-white hover:bg-blue-700",
                card: "bg-white rounded-8px shadow-md p-16px",
                // 文本截断
                "text-ellipsis": "truncate",
                "text-multi-ellipsis": "line-clamp-2",
            },
            theme: {
                fontSize: {
                    xs: "12px",
                    sm: "14px",
                    base: "16px",
                    lg: "18px",
                    xl: "20px",
                    "2xl": "24px",
                },
            },
        }),
    ],
    resolve: {
        alias: {
            "@": path.resolve(__dirname, "./src"),
        },
    },
    server: {
        host: "localhost",
        port: 8130,
        // proxy: {
        //     // //api是自行设置的请求前缀，任何请求路径以/api开头的请求将被代理到对应的target目标
        //     // "/api": {
        //     //     target: "http://localhost:8064/",
        //     //     // target: "http://debugold.hongyucloud.com/ChildOptCourse",
        //     //     changeOrigin: true, //需要代理跨域
        //     //     rewrite: (path: any) => path.replace(/^\/api/, "/api/"), //路径重写，把'/api'替换为''
        //     // },
        // },
    },
    // css预处理器
    css: {
        // preprocessorOptions: {
        //     scss: {
        //         additionalData: '@import "./src/assets/styles/utils/_varible.scss";',
        //     },
        // },
    },
    base: "./",
    build: {
        target: "modules", //设置最终构建的浏览器兼容目标  //es2015(编译成es5) | modules
        outDir, // 构建输出目录：兼容 CI 的 dist/{prod|ld|base} 子目录（见文件头注释）
        assetsDir: "assets", // 静态资源得存放路径文件名  assets
        sourcemap: false, //构建后是否生成 source map 文件
        minify: "esbuild", // 项目压缩 :boolean | 'terser' | 'esbuild'
        chunkSizeWarningLimit: 1000, //chunk 大小警告的限制（以 kbs 为单位）默认：500
        cssTarget: "chrome61", //防止 vite 将 rgba() 颜色转化为 #RGBA 十六进制符号的形式  (要兼容的场景是安卓微信中的 webview 时,它不支持 CSS 中的 #RGBA 十六进制颜色符号)
        rollupOptions: {
            input: {
                main: resolve("index.html"),
            },
            output: {
                chunkFileNames: "static/js/[name]-[hash].js",
                entryFileNames: "static/js/[name]-[hash].js",
                assetFileNames: (assetInfo: any) => {
                    if (assetInfo.type === "asset" && /\.(jpe?g|png|gif|svg)$/i.test(assetInfo.name)) {
                        return "static/img/[name].[hash][ext]";
                    }
                    if (assetInfo.type === "asset" && /\.(ttf|woff|woff2|eot)$/i.test(assetInfo.name)) {
                        return "static/fonts/[name].[hash][ext]";
                    }
                    return "static/[ext]/[name]-[hash].[ext]";
                },
            },
            manualEntrypoint: "index.html",
        },
    },
    };
});