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| 1 | <?php |
| 2 | |
| 3 | namespace App\Services\Shipping; |
| 4 | |
| 5 | use App\Models\ShippingRate; |
| 6 | use App\Models\ShippingZone; |
| 7 | use Illuminate\Support\Collection; |
| 8 | |
| 9 | /** |
| 10 | * Real zone × rate shipping. A store that never sets up a zone keeps using |
| 11 | * the flat "Inside Dhaka / Outside Dhaka" list from Settings → Checkout |
| 12 | * (see OrderService::resolveShippingCharge()) — zones are entirely opt-in. |
| 13 | */ |
| 14 | class ShippingService |
| 15 | { |
| 16 | /** Active zones with their rates, in display order. */ |
| 17 | public function zones(): Collection |
| 18 | { |
| 19 | return ShippingZone::query() |
| 20 | ->where('is_active', true) |
| 21 | ->with('rates') |
| 22 | ->orderBy('sort_order') |
| 23 | ->orderBy('name') |
| 24 | ->get() |
| 25 | ->filter(fn (ShippingZone $z) => $z->rates->isNotEmpty()) |
| 26 | ->values(); |
| 27 | } |
| 28 | |
| 29 | public function hasZones(): bool |
| 30 | { |
| 31 | return $this->zones()->isNotEmpty(); |
| 32 | } |
| 33 | |
| 34 | public function findRate(int $rateId): ?ShippingRate |
| 35 | { |
| 36 | return ShippingRate::query()->with('zone')->find($rateId); |
| 37 | } |
| 38 | |
| 39 | /** The delivery charge for a chosen rate at this order subtotal. */ |
| 40 | public function resolveCharge(?int $rateId, float $subtotal): float |
| 41 | { |
| 42 | $rate = $rateId ? $this->findRate($rateId) : null; |
| 43 | |
| 44 | return $rate ? $rate->chargeFor($subtotal) : 0.0; |
| 45 | } |
| 46 | |
| 47 | /** Is COD allowed for the zone this rate belongs to? */ |
| 48 | public function codAllowed(?int $rateId): bool |
| 49 | { |
| 50 | $rate = $rateId ? $this->findRate($rateId) : null; |
| 51 | |
| 52 | return $rate ? (bool) $rate->zone?->cod_allowed : true; |
| 53 | } |
| 54 | } |