<?php


namespace App\Repositories;


use App\Recipe;
use App\RecipeProduct;
use App\RecipeStep;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\DB;

class RecipesRepository implements RecipesRepositoryInterface
{
    public function create(Collection $data)
    {
        return DB::transaction(function () use ($data) {
            $recipeData = $data->only(['name', 'description']);
            $ingredients = $data->get('ingredients');
            $steps = $data->get('steps');

            $recipe = Recipe::create($recipeData->toArray());

            foreach ($ingredients as $ingredient) {
                RecipeProduct::create([
                    'recipe_id' => $recipe['id'],
                    'product_id' => $ingredient['id'],
                    'weight' => $ingredient['weight']
                ]);
            }

            foreach ($steps as $step) {
                RecipeStep::create(['recipe_id' => $recipe['id'], 'step' => $step]);
            }
            return $this->get($recipe['id']);
        });
    }

    public function get(int $id)
    {
        $rawRecipe = Recipe::where('id', $id)->first();
        $recipe = [
            'name' => $rawRecipe['name'],
            'description' => $rawRecipe['description'],
            'ingredients' => $this->processIngredients($rawRecipe['ingredients']),
            'steps' => $rawRecipe['steps']->pluck('step')
        ];

        return $recipe;
    }

    public function processIngredients(Collection $ingredients)
    {
        return $ingredients->map(function ($item) {
            return collect(array_merge($item->toArray(), $item['product']->toArray()))
                ->only(['name', 'weight']);
        });
    }


    public function paginate($chunkSize)
    {
        return Recipe::paginate($chunkSize);
    }
}