/*
 * SPDX-FileCopyrightText: 2024-2026 Pagefault Games
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { defineConfig, loadEnv, type PluginOption, type UserConfig, type UserConfigFnPromise } from "vite";

/**
 * Default config object used for both Vitest and local dev runs.
 */
export const sharedConfig: UserConfigFnPromise = async ({ mode }) => {
  const opts = {
    clearScreen: false,
    appType: "mpa",
    build: {
      sourcemap: mode !== "production",
      chunkSizeWarningLimit: 10000,
      minify: "oxc",
      manifest: true,
      rolldownOptions: {
        // TODO: Review if we even need this anymore in v8.0
        onwarn(warning, defaultHandler) {
          // Suppress "Module level directives cause errors when bundled" warnings
          if (warning.code === "MODULE_LEVEL_DIRECTIVE") {
            return;
          }
          defaultHandler(warning);
        },
        checks: {
          // For some stupid reason, Phaser uses direct eval when loading scene classes, producing errors for a method
          // that we actively never use
          eval: false,
        },
        // Enable more aggressive tree-shaking for production builds, but disable them during dev builds (including the beta site)
        // to ensure removing statements does not mask hidden errors.
        treeshake: {
          manualPureFunctions: mode === "production" ? ["console.debug", "console.log"] : [],
          propertyReadSideEffects: mode === "production" ? false : "always",
          unknownGlobalSideEffects: mode !== "production",
          // TODO: This one is a bit iffy (hence why I'm disabling it for now)
          // propertyWriteSideEffects: mode === "production" ? false : "always",
        },
        // TODO: Look into configuring more rolldown options for smaller bundle size
        output: {
          keepNames: true,
          // Needed to prevent import timing issues with the phaser3 rex plugins
          strictExecutionOrder: true,
          minify:
            mode === "development"
              ? "dce-only"
              : {
                  mangle: { keepNames: true },
                  compress: { keepNames: { class: true, function: true } },
                },
        },
      },
    },
    resolve: {
      tsconfigPaths: true,
    },
    plugins: [] as PluginOption[],
  } satisfies UserConfig;

  if (!process.env.MERGE_REPORTS) {
    opts.plugins = [
      (await import("./plugins/vite/vite-minify-json-plugin.ts")).minifyPublicJsonFiles(),
      (await import("./plugins/vite/namespaces-i18n-plugin.ts")).LocaleNamespace(),
      (await import("unplugin-inline-enum/vite")).default({ scanDir: "src" }),
      (await import("./plugins/vite/static-shell-plugin.ts")).staticShellPlugin(),
    ];
  }
  return opts;
};

// biome-ignore lint/style/noDefaultExport: required for Vite
export default defineConfig(async config => {
  const { mode, command } = config;
  const envPort = Number(loadEnv(mode, process.cwd()).VITE_PORT);

  return {
    ...(await sharedConfig(config)),
    base: "",
    publicDir: command === "serve" ? "assets" : false,
    server: {
      port: Number.isNaN(envPort) ? 8000 : envPort,
    },
  } satisfies UserConfig;
});