const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

const projectRoot = path.join(__dirname, '..');

// --- Fonctions de Patch ---

function applyPatch(filePath, patches) {
  const fullPath = path.join(projectRoot, filePath);
  if (!fs.existsSync(fullPath)) {
    console.warn(`🟡 Fichier non trouvé, patch ignoré : ${filePath}`);
    return;
  }

  let content = fs.readFileSync(fullPath, 'utf8');
  let changed = false;

  patches.forEach(patch => {
    if (content.includes(patch.new_string)) {
      console.log(`✅ Patch déjà appliqué dans ${filePath} (recherche de '${patch.search_string}').`);
    } else if (content.includes(patch.old_string)) {
      content = content.replace(patch.old_string, patch.new_string);
      changed = true;
      console.log(`🟢 Patch appliqué dans ${filePath} (remplacement de '${patch.search_string}').`);
    } else {
      console.error(`🔴 Impossible d'appliquer le patch dans ${filePath}. Chaîne non trouvée : '${patch.search_string}'.`);
    }
  });

  if (changed) {
    fs.writeFileSync(fullPath, content, 'utf8');
  }
}

// --- Définition des Patches ---

const patches = [
  {
    file: 'src/api/base44Client.js',
    search_string: 'createClient',
    old_string: `import { createClient } from '@base44/sdk';
// import { getAccessToken } from '@base44/sdk/utils/auth-utils';

// Create a client with authentication required
export const base44 = createClient({
  appId: "68fc6cf01386035c266e7a5d", 
  requiresAuth: true // Ensure authentication is required for all operations
});`,
    new_string: `// import { createClient } from '@base44/sdk';

// --- MIGRATION MOCK ---
// This mock completely disables the Base44 SDK to allow for local development.
export const base44 = {
  auth: {
    me: () => Promise.resolve(null),
    logout: () => {},
  },
  entities: {
    ActivityLog: {
      filter: () => Promise.resolve([]),
    },
  },
};
`
  },
  {
    file: 'src/main.jsx',
    search_string: `ReactDOM.createRoot(document.getElementById('root')).render(`,
    old_string: `import React from 'react'
import ReactDOM from 'react-dom/client'
import App from '@/App.jsx'
import '@/index.css'

ReactDOM.createRoot(document.getElementById('root')).render(
    <App />
)`,
    new_string: `import React from 'react'
import ReactDOM from 'react-dom/client'
import App from '@/App.jsx'
import '@/index.css'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';

const queryClient = new QueryClient();

ReactDOM.createRoot(document.getElementById('root')).render(
  <React.StrictMode>
    <QueryClientProvider client={queryClient}>
      <App />
    </QueryClientProvider>
  </React.StrictMode>,
)
`
  },
  {
    file: 'src/pages/Layout.jsx',
    search_string: `const { data: user } = useQuery`,
    old_string: `  const { data: user } = useQuery({
    queryKey: ['current-user-layout'],
    queryFn: () => base44.auth.me(),
  });`,
    new_string: `  // const { data: user } = useQuery({
  //   queryKey: ['current-user-layout'],
  //   queryFn: () => base44.auth.me(),
  // });

  // Mock user data to prevent redirection and allow local development
  const user = {
    full_name: "Dev User",
    email: "dev@example.com",
    user_role: "admin", // You can change this to 'procurement', 'operator', 'client', etc. to test different navigation menus
    profile_picture: "https://i.pravatar.cc/150?u=a042581f4e29026024d",
  };`
  },
  {
    file: 'src/pages/Layout.jsx',
    search_string: `const { data: unreadCount = 0 } = useQuery`,
    old_string: `  const { data: unreadCount = 0 } = useQuery({
    queryKey: ['unread-notifications', user?.id],
    queryFn: async () => {
      if (!user?.id) return 0;
      // Assuming ActivityLog entity is used for user notifications
      // and has user_id and is_read fields.
      const notifications = await base44.entities.ActivityLog.filter({
        user_id: user?.id,
        is_read: false
      });
      return notifications.length;
    },
    enabled: !!user?.id,
    initialData: 0,
    refetchInterval: 10000, // Refresh every 10 seconds
  });`,
    new_string: `  // Get unread notification count
  // const { data: unreadCount = 0 } = useQuery({ ... });
  const unreadCount = 0; // Mocked value`
  }
];