<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ShippingRate extends Model
{
    protected $fillable = ['name','zone','price','free_from','active'];

    protected $casts = ['active' => 'boolean', 'price' => 'decimal:2', 'free_from' => 'decimal:2'];

    // Länder → Zonen-Mapping
    public static array $countryZones = [
        'DE' => 'DE',
        'AT' => 'DACH',
        'CH' => 'DACH',
        'LI' => 'DACH',
        'FR' => 'EU', 'NL' => 'EU', 'BE' => 'EU', 'LU' => 'EU',
        'IT' => 'EU', 'ES' => 'EU', 'PT' => 'EU', 'PL' => 'EU',
        'CZ' => 'EU', 'SK' => 'EU', 'HU' => 'EU', 'RO' => 'EU',
        'BG' => 'EU', 'HR' => 'EU', 'SI' => 'EU', 'GR' => 'EU',
        'DK' => 'EU', 'SE' => 'EU', 'FI' => 'EU', 'EE' => 'EU',
        'LV' => 'EU', 'LT' => 'EU', 'IE' => 'EU', 'MT' => 'EU',
        'CY' => 'EU',
    ];

    public static function zoneForCountry(string $country): string
    {
        return self::$countryZones[strtoupper($country)] ?? 'WORLD';
    }

    public static function forCart(float $total, string $country = 'DE'): ?self
    {
        $zone = self::zoneForCountry($country);
        $rate = self::where('zone', $zone)->where('active', true)->first();
        // Fallback auf DE wenn keine Zone gefunden
        return $rate ?? self::where('zone', 'DE')->where('active', true)->first();
    }

    public function getCostForTotal(float $total): float
    {
        if ($this->free_from !== null && $total >= (float) $this->free_from) {
            return 0.0;
        }
        return (float) $this->price;
    }
}