<?php

namespace App\Http\Controllers;

use App\Services\MagentoCategoryMigrationService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;

class MigrationController extends Controller
{
    protected $migrationService;

    public function __construct(MagentoCategoryMigrationService $migrationService)
    {
        $this->migrationService = $migrationService;
    }

    /**
     * Show the category migration page
     */
    public function index()
    {
        $m1Stores = $this->migrationService->getMagento1Stores();
        $m2Stores = $this->migrationService->getMagento2Stores();
        $connectionTest = $this->migrationService->testConnections();
        $m1Categories = $this->migrationService->getMagento1Categories();
        $m2Categories = $this->migrationService->getMagento2Categories();

        return view('migration.index', [
            'm1Stores' => $m1Stores,
            'm2Stores' => $m2Stores,
            'connectionTest' => $connectionTest,
            'm1CategoriesCount' => $m1Categories->count(),
            'm2CategoriesCount' => $m2Categories->count(),
        ]);
    }

    /**
     * Execute the migration
     */
    public function migrate(Request $request)
    {
        $request->validate([
            'store_mapping' => 'required|array',
            'store_mapping.*' => 'required|integer',
        ]);

        try {
            $storeMapping = $request->input('store_mapping');
            
            // Convert array format: ['m1_store_id' => 'm2_store_id']
            $mapping = [];
            foreach ($storeMapping as $m1StoreId => $m2StoreId) {
                $mapping[(int)$m1StoreId] = (int)$m2StoreId;
            }

            $result = $this->migrationService->migrateCategories($mapping);

            return response()->json($result);

        } catch (\Exception $e) {
            Log::error('Migration error: ' . $e->getMessage());
            
            return response()->json([
                'success' => false,
                'message' => 'Migration failed: ' . $e->getMessage(),
            ], 500);
        }
    }
}