<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class ProductReview extends Model
{
    use HasFactory;

    protected $fillable = [
        'product_id',
        'user_id',
        'order_id',
        'rating',
        'title',
        'body',
        'is_approved',
        'helpful_count',
        'ip_address',
        'user_agent',
    ];

    protected function casts(): array
    {
        return [
            'rating' => 'integer',
            'is_approved' => 'boolean',
            'helpful_count' => 'integer',
        ];
    }

    /**
     * Get the product that owns the review.
     */
    public function product()
    {
        return $this->belongsTo(Product::class);
    }

    /**
     * Get the user that wrote the review.
     */
    public function user()
    {
        return $this->belongsTo(User::class);
    }

    /**
     * Get the order associated with the review (if verified purchase).
     */
    public function order()
    {
        return $this->belongsTo(Order::class);
    }

    /**
     * Scope a query to only include approved reviews.
     */
    public function scopeApproved($query)
    {
        return $query->where('is_approved', true);
    }

    /**
     * Scope a query to only include pending reviews.
     */
    public function scopePending($query)
    {
        return $query->where('is_approved', false);
    }

    /**
     * Scope a query to filter reviews for a specific product.
     */
    public function scopeForProduct($query, $productId)
    {
        return $query->where('product_id', $productId);
    }

    /**
     * Increment helpful count for this review.
     */
    public function markAsHelpful(): void
    {
        $this->increment('helpful_count');
    }

    /**
     * Check if the given user is the author of this review.
     */
    public function isAuthor(?User $user): bool
    {
        if (!$user) {
            return false;
        }

        return $this->user_id === $user->id;
    }

    /**
     * Get the author name (user name or "Anonymous").
     */
    public function getAuthorNameAttribute(): string
    {
        if ($this->user) {
            return $this->user->name;
        }

        return 'Anonymous';
    }
}