<?php

namespace App\Http\Resources\Intervention;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\ResourceCollection;

class InterventionCollection extends ResourceCollection
{
    /**
     * Transform the resource collection into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        return [
            'data' => $this->collection,
            'meta' => [
                'total' => $this->total(),
                'per_page' => $this->perPage(),
                'current_page' => $this->currentPage(),
                'last_page' => $this->lastPage(),
                'from' => $this->firstItem(),
                'to' => $this->lastItem(),
                'status_summary' => $this->calculateStatusSummary()
            ]
        ];
    }

    /**
     * Calculate summary of intervention statuses.
     *
     * @return array
     */
    protected function calculateStatusSummary(): array
    {
        $statusCounts = $this->collection->groupBy('status')
            ->map(function ($group) {
                return $group->count();
            })
            ->toArray();

        return $statusCounts;
    }
}