<?php

namespace App\Models;

use App\Models\Setting;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class File extends Model
{
    use HasFactory, Selector;

    protected $fillable = [
        'original_name',
        'title',
        'ext',
        'src',
        'size',
        'user_id',
        'type',
        'has_thumb',
        'url',
    ];

    protected $casts = [
        'has_thumb' => 'boolean',
    ];

    protected $appends = [
        'full_src',
    ];

    /**
     * URL کامل تصویر — همان قرارداد قبلی API (src = آدرس قابل نمایش).
     */
    public function getSrcAttribute(): ?string
    {
        return self::publicUrl($this->attributes['src'] ?? null);
    }

    public function getFullSrcAttribute(): ?string
    {
        return $this->src;
    }

    public static function publicUrl(?string $path): ?string
    {
        if ($path === null || trim($path) === '') {
            return null;
        }

        $trimmed = trim($path);

        if (preg_match('/^https?:\/\//i', $trimmed)) {
            return $trimmed;
        }

        $base = self::resolvePublicBaseUrl();
        if ($base === '') {
            return null;
        }

        $relative = ltrim($trimmed, '/');
        if (! str_starts_with($relative, 'storage/')) {
            $relative = 'storage/'.$relative;
        }

        return $base.'/'.$relative;
    }

    /**
     * پایهٔ URL فایل‌های storage — cache-safe و مستقل از env() خام.
     */
    public static function resolvePublicBaseUrl(): string
    {
        $domain = config('app.domain');
        if (is_string($domain) && $domain !== '' && ! str_contains($domain, 'localhost')) {
            return rtrim($domain, '/');
        }

        $appUrl = config('app.url');
        if (is_string($appUrl) && $appUrl !== '' && ! str_contains($appUrl, 'localhost') && str_contains($appUrl, '/server')) {
            return rtrim($appUrl, '/');
        }

        try {
            $rows = Setting::query()
                ->whereIn('key', ['bace_url', 'server_url', 'admin_url', 'app_url'])
                ->where('is_active', 1)
                ->pluck('value', 'key');

            foreach (['bace_url', 'server_url'] as $key) {
                $value = trim((string) ($rows[$key] ?? ''));
                if ($value !== '' && preg_match('/^https?:\/\//i', $value)) {
                    return rtrim($value, '/');
                }
            }

            $adminUrl = trim((string) ($rows['admin_url'] ?? ''));
            if ($adminUrl !== '' && preg_match('#/admin#i', $adminUrl)) {
                return rtrim(preg_replace('#/admin/?$#i', '/server', rtrim($adminUrl, '/')), '/');
            }

            $siteUrl = trim((string) ($rows['app_url'] ?? ''));
            if ($siteUrl !== '' && preg_match('/^https?:\/\//i', $siteUrl)) {
                return rtrim($siteUrl, '/').'/server';
            }
        } catch (\Throwable) {
            // DB unavailable during deploy/migrate
        }

        if (is_string($appUrl) && $appUrl !== '' && ! str_contains($appUrl, 'localhost')) {
            return rtrim($appUrl, '/');
        }

        return '';
    }
}