<?php

namespace App\Http\Resources;

use App\Models\QrCode;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;
use Illuminate\Support\Facades\URL;

class QrCodeBatchResource extends JsonResource
{
    public function toArray(Request $request): array
    {
        $statusCounts = [
            'active' => $this->active_codes_count ?? 0,
            'used' => $this->used_codes_count ?? 0,
            'voided' => $this->voided_codes_count ?? 0,
        ];

        // If the relation is loaded (like on the show endpoint), compute it accurately just in case
        if ($this->relationLoaded('codes') && ! isset($this->active_codes_count)) {
            $statusCounts = $this->codes->groupBy(fn (QrCode $c) => (string) $c->status)
                ->map(fn ($group) => $group->count())
                ->all();
        }

        return [
            'batch_number' => $this->batch_number,
            'quantity' => $this->quantity,
            'purpose' => $this->purpose,
            'target_area' => $this->whenLoaded('targetArea', fn () => $this->targetArea?->code),
            'target_store_id' => $this->target_store_id,
            'household' => $this->whenLoaded('household', fn () => $this->household ? [
                'id' => $this->household->id,
                'address' => $this->household->address_line,
                'head_name' => $this->household->head?->full_name,
            ] : null),
            'created_by' => $this->whenLoaded('createdBy', fn () => $this->createdBy?->full_name),
            'printed_at' => $this->printed_at?->toIso8601String(),
            'expires_at' => $this->expires_at?->toIso8601String(),
            'notes' => $this->notes,
            'status_counts' => $statusCounts,
            'print_url' => URL::temporarySignedRoute(
                'api.v1.admin.qr-batches.print-pdf',
                now()->addHours(24),
                ['qr_code_batch' => $this->batch_number]
            ),
            'created_at' => $this->created_at?->toIso8601String(),
        ];
    }
}