<?php

namespace App\Http\Controllers\Api;

use App\Dtos\RecipeDto;
use App\Http\Controllers\Controller;
use App\Services\RecipeIngestService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Throwable;

class RecipeIngestController extends Controller
{
    public function __construct(
        protected RecipeIngestService $ingestService
    ) {
    }

    /**
     * Ingest a recipe from external source
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function ingest(Request $request): JsonResponse
    {
        try {
            // Parse JSON to DTO
            $recipeDto = RecipeDto::fromArray($request->all());

            // Validate required fields
            if (empty($recipeDto->slug)) {
                return response()->json([
                    'success' => false,
                    'message' => 'Recipe slug is required',
                ], 422);
            }

            // Ingest the recipe
            $recipe = $this->ingestService->ingest($recipeDto);

            return response()->json([
                'success' => true,
                'message' => 'Recipe ingested successfully',
                'data' => [
                    'id' => $recipe->id,
                    'slug' => $recipe->slug,
                    'title' => $recipe->title,
                ],
            ], 200);

        } catch (Throwable $e) {
            Log::error('Recipe ingestion failed', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
                'data' => $request->all(),
            ]);

            return response()->json([
                'success' => false,
                'message' => 'Failed to ingest recipe: ' . $e->getMessage(),
            ], 500);
        }
    }

    /**
     * Ingest multiple recipes in batch
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function batchIngest(Request $request): JsonResponse
    {
        try {
            $recipes = $request->input('recipes', []);

            if (empty($recipes) || !is_array($recipes)) {
                return response()->json([
                    'success' => false,
                    'message' => 'Invalid recipes data. Expected array of recipes.',
                ], 422);
            }

            $results = [
                'success' => 0,
                'failed' => 0,
                'errors' => [],
            ];

            foreach ($recipes as $index => $recipeData) {
                try {
                    $recipeDto = RecipeDto::fromArray($recipeData);

                    if (empty($recipeDto->slug)) {
                        $results['failed']++;
                        $results['errors'][] = [
                            'index' => $index,
                            'error' => 'Recipe slug is required',
                        ];
                        continue;
                    }

                    $this->ingestService->ingest($recipeDto);
                    $results['success']++;

                } catch (Throwable $e) {
                    $results['failed']++;
                    $results['errors'][] = [
                        'index' => $index,
                        'slug' => $recipeData['slug'] ?? 'unknown',
                        'error' => $e->getMessage(),
                    ];

                    Log::error('Batch recipe ingestion failed for item', [
                        'index' => $index,
                        'error' => $e->getMessage(),
                        'data' => $recipeData,
                    ]);
                }
            }

            return response()->json([
                'success' => $results['failed'] === 0,
                'message' => "Processed {$results['success']} recipes successfully, {$results['failed']} failed",
                'data' => $results,
            ], $results['failed'] > 0 ? 207 : 200);

        } catch (Throwable $e) {
            Log::error('Batch recipe ingestion failed', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
            ]);

            return response()->json([
                'success' => false,
                'message' => 'Failed to process batch: ' . $e->getMessage(),
            ], 500);
        }
    }
}