import { defineConfig } from "vite";
import vue from "@vitejs/plugin-vue";
import dotenv from "dotenv";
import { loadAppConfig } from "./vite.config.utils.mts";
import path from "path";
import { fileURLToPath } from 'url';

// Load environment variables
dotenv.config();

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

export async function createBuildConfig(mode: string) {
  const appConfig = await loadAppConfig();
  const isElectron = mode === "electron";
  const isCapacitor = mode === "capacitor";
  const isPyWebView = mode === "pywebview";

  // Explicitly set platform
  process.env.VITE_PLATFORM = mode;

  if (isElectron || isPyWebView || isCapacitor) {
    process.env.VITE_PWA_ENABLED = 'false';
  }

  return {
    base: isElectron || isPyWebView ? "./" : "/",
    plugins: [vue()],
    server: {
      port: parseInt(process.env.VITE_PORT || "8080"),
      fs: { strict: false },
    },
    build: {
      outDir: isElectron ? "dist-electron" : "dist",
      assetsDir: 'assets',
      chunkSizeWarningLimit: 1000,
      rollupOptions: {
        external: isCapacitor ? ['@capacitor/app'] : []
      }
    },
    define: {
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
      'process.env.VITE_PLATFORM': JSON.stringify(mode),
      'process.env.VITE_PWA_ENABLED': JSON.stringify(!(isElectron || isPyWebView || isCapacitor)),
      __dirname: isElectron ? JSON.stringify(process.cwd()) : '""',
    },
    resolve: {
      alias: {
        '@': path.resolve(__dirname, './src'),
        ...appConfig.aliasConfig,
        'nostr-tools/nip06': mode === 'development' 
          ? 'nostr-tools/nip06'
          : path.resolve(__dirname, 'node_modules/nostr-tools/nip06'),
        'nostr-tools/core': mode === 'development'
          ? 'nostr-tools'
          : path.resolve(__dirname, 'node_modules/nostr-tools'),
        'nostr-tools': path.resolve(__dirname, 'node_modules/nostr-tools'),
        'dexie-export-import': path.resolve(__dirname, 'node_modules/dexie-export-import')
      }
    },
    optimizeDeps: {
      include: ['nostr-tools', 'nostr-tools/nip06', 'nostr-tools/core', 'dexie-export-import'],
      exclude: isElectron ? [
        'register-service-worker',
        'workbox-window',
        'web-push',
        'serviceworker-webpack-plugin'
      ] : []
    }
  };
}

export default defineConfig(async () => createBuildConfig('web'));
