<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Support\Facades\App;

class Project extends Model
{
    protected $fillable = [
        'title_en', 'title_ar',
        'short_description_en', 'short_description_ar',
        'description_en', 'description_ar',
        'slug', 'image_path',          // JSON string in DB
        'image_alt_en', 'image_alt_ar',
        'location_en', 'location_ar',
        'year_completed',
    ];

    protected $casts = [
        'year_completed' => 'integer',
        'image_path'     => 'json',    // Laravel auto-decodes JSON → array
    ];

    // === MUTATOR: Always return array (even if null) ===
    public function getImagePathAttribute($value): array
    {
        if (is_null($value) || $value === '' || $value === 'null') {
            return [];
        }

        // If already array (from cast 'json')
        if (is_array($value)) {
            return $value;
        }

        // Fallback: decode string (old data)
        $decoded = json_decode($value, true);
        return is_array($decoded) ? $decoded : [$value];
    }

    // === SETTER: Always save as JSON ===
    public function setImagePathAttribute($value): void
    {
        if (is_array($value)) {
            $filtered = array_filter($value); // remove null/empty
            $this->attributes['image_path'] = !empty($filtered) ? json_encode($filtered) : null;
        } else {
            $this->attributes['image_path'] = null;
        }
    }

    // === THUMBNAIL: First image as string (for homepage) ===
    public function getThumbnailAttribute(): ?string
    {
        return $this->image_path[0] ?? null;
    }

    // === IMAGE COUNT ===
    public function getImageCountAttribute(): int
    {
        return count($this->image_path);
    }

    // === RELATIONSHIP ===
    public function categories(): BelongsToMany
    {
        return $this->belongsToMany(Category::class, 'project_category');
    }

    // === BILINGUAL ACCESSORS ===
    public function getTitleAttribute(): string
    {
        return $this->{'title_' . App::getLocale()} ?? $this->title_en;
    }

    public function getShortDescriptionAttribute(): ?string
    {
        return $this->{'short_description_' . App::getLocale()} ?? $this->short_description_en;
    }

    public function getDescriptionAttribute(): ?string
    {
        return $this->{'description_' . App::getLocale()} ?? $this->description_en;
    }

    public function getImageAltAttribute(): ?string
    {
        return $this->{'image_alt_' . App::getLocale()} ?? $this->image_alt_en;
    }

    public function getLocationAttribute(): ?string
    {
        return $this->{'location_' . App::getLocale()} ?? $this->location_en;
    }
}