<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;

class Product extends Model
{
    use HasFactory;

    protected $fillable = [
        'category_id',
        'name',
        'slug',
        'sku',
        'price',
        'old_price',
        'stock',
        'short_description',
        'description',
        'image_path',
        'gallery_paths',
        'specs',
        'is_active',
    ];

    protected function casts(): array
    {
        return [
            'price' => 'decimal:2',
            'old_price' => 'decimal:2',
            'stock' => 'integer',
            'gallery_paths' => 'array',
            'specs' => 'array',
            'is_active' => 'boolean',
        ];
    }

    public function category()
    {
        return $this->belongsTo(Category::class);
    }

    public function getRouteKeyName(): string
    {
        return 'slug';
    }

    public function getImageUrlAttribute(): ?string
    {
        return $this->resolveImagePath($this->image_path);
    }

    public function getGalleryUrlsAttribute(): array
    {
        $paths = collect((array) ($this->gallery_paths ?? []))
            ->prepend($this->image_path)
            ->filter(fn ($path) => is_string($path) && trim($path) !== '')
            ->map(fn (string $path) => trim($path))
            ->unique()
            ->values();

        return $paths
            ->map(fn (string $path) => $this->resolveImagePath($path))
            ->filter()
            ->values()
            ->all();
    }

    private function resolveImagePath(?string $path): ?string
    {
        $path = trim((string) $path);
        if ($path === '') {
            return null;
        }

        if (Str::startsWith($path, ['http://', 'https://', '/'])) {
            return $path;
        }

        if (Str::startsWith($path, 'uploads/')) {
            return asset($path);
        }

        return '/storage/' . ltrim($path, '/');
    }
}