<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\HasOne;

class Recipe extends Model
{
    protected $fillable = [
        'title',
        'slug',
        'description',
        'prep_time',
        'cook_time',
        'total_time',
        'servings',
        'difficulty',
        'cuisine',
        'category',
        'calories',
        'featured_image',
        'video_url',
        'status',
        'views_count',
        'rating_avg',
        'rating_count',
    ];

    protected $casts = [
        'prep_time' => 'integer',
        'cook_time' => 'integer',
        'total_time' => 'integer',
        'servings' => 'integer',
        'calories' => 'integer',
        'status' => 'integer',
        'views_count' => 'integer',
        'rating_avg' => 'decimal:2',
        'rating_count' => 'integer',
    ];

    public function ingredients(): BelongsToMany
    {
        return $this->belongsToMany(Ingredient::class, 'recipe_ingredient')
            ->withPivot('quantity', 'unit', 'notes', 'sort_order')
            ->withTimestamps()
            ->orderBy('recipe_ingredient.sort_order');
    }

    public function steps(): HasMany
    {
        return $this->hasMany(RecipeStep::class)->orderBy('sort_order');
    }

    public function images(): HasMany
    {
        return $this->hasMany(RecipeImage::class)->orderBy('sort_order');
    }

    public function nutrition(): HasOne
    {
        return $this->hasOne(RecipeNutrition::class);
    }

    public function tags(): BelongsToMany
    {
        return $this->belongsToMany(Tag::class, 'recipe_tag')->withTimestamps();
    }

    public function ratings(): HasMany
    {
        return $this->hasMany(RecipeRating::class);
    }

    public function comments(): HasMany
    {
        return $this->hasMany(RecipeComment::class)->latest();
    }

    public function favoritedBy(): BelongsToMany
    {
        return $this->belongsToMany(User::class, 'user_favorites')->withTimestamps();
    }

    public function isFavoritedBy(?User $user): bool
    {
        if (!$user) {
            return false;
        }

        return $this->favoritedBy()->where('user_id', $user->id)->exists();
    }

    public function userRating(?User $user): ?int
    {
        if (!$user) {
            return null;
        }

        return $this->ratings()->where('user_id', $user->id)->value('rating');
    }

    public function getRecipeImage()
    {
        if ($this->featured_image) {
            return $this->featured_image;
        }

        if ($this->images()) {
            return $this->images()->first()->image_path;
        }

        return null;
    }
}