import { readFileSync } from "node:fs";
import path from "node:path";
import { defineConfig } from "vitest/config";
import react from "@vitejs/plugin-react";
// @ts-expect-error Shared Node HTTP middleware also serves production bundles.
import { createBundledContentHandler } from "./server/bundled-content.mjs";

const packageVersion = (JSON.parse(readFileSync(new URL("./package.json", import.meta.url), "utf8")) as { version: string }).version;

export default defineConfig(({ mode }) => {
  const androidBuild = mode === "android";
  const downloadableBuild = androidBuild || mode === "production";
  return {
    plugins: [react(), {
      name: "bundled-content-preview",
      configurePreviewServer(server) {
        const serve = createBundledContentHandler(path.resolve(androidBuild ? "dist-android" : "dist"));
        server.middlewares.use((request, response, next) => {
          if (!serve(request, response, new URL(request.url ?? "/", "http://localhost").pathname)) next();
        });
      },
    }],
    publicDir: androidBuild ? ".android-public" : downloadableBuild ? ".web-public" : "public",
    define: {
      "import.meta.env.VITE_APP_VERSION": JSON.stringify(packageVersion),
      "import.meta.env.VITE_CONTENT_MODE": JSON.stringify(downloadableBuild ? "downloadable" : "bundled"),
    },
    resolve: {
      alias: {
        "@dungeonAssetModules": path.resolve(
          downloadableBuild ? "src/game/dungeonAssetModules.android.ts" : "src/game/dungeonAssetModules.ts",
        ),
      },
    },
    server: {
    proxy: {
      "/api": "http://127.0.0.1:4173",
      "/content": "http://127.0.0.1:4173",
    },
    watch: {
      // Asset-pipeline staging files are large, short-lived, and can be locked
      // while iCloud or conversion tools are writing them. They are not app
      // source, so watching them only risks taking the dev server down with
      // EBUSY on Windows.
      ignored: [
        "**/dungeon-pipeline/**",
        "**/playtest-artifacts/**",
      ],
    },
    },
    build: {
      target: "es2022",
      sourcemap: false,
      emptyOutDir: true,
      outDir: androidBuild ? "dist-android" : "dist",
    },
    test: {
      environment: "node",
      include: ["src/**/*.test.ts"],
    },
  };
});