<?php

namespace App\Services\Frontdesk;

use App\Models\EmployeePresence;
use App\Models\EmployeePresenceEvent;
use App\Models\Organization;
use Illuminate\Support\Carbon;
use Illuminate\Support\Collection;

class EmployeeReportService
{
    /** @return array<string, int> */
    public function summary(
        string $ownerRef,
        Organization $organization,
        Carbon $from,
        Carbon $to,
        ?int $branchId = null,
    ): array {
        $events = $this->eventsQuery($ownerRef, $organization->id, $from, $to, $branchId);

        return [
            'sign_ins' => (clone $events)->where('event', EmployeePresenceEvent::EVENT_SIGN_IN)->count(),
            'sign_outs' => (clone $events)->where('event', EmployeePresenceEvent::EVENT_SIGN_OUT)->count(),
            'step_outs' => (clone $events)->where('event', EmployeePresenceEvent::EVENT_STEP_OUT)->count(),
            'staff_on_site_now' => EmployeePresence::query()
                ->where('status', EmployeePresence::STATUS_ON_SITE)
                ->whereHas('employee', function ($q) use ($ownerRef, $organization, $branchId) {
                    $q->owned($ownerRef)->where('organization_id', $organization->id)->where('active', true);
                    if ($branchId) {
                        $q->where('branch_id', $branchId);
                    }
                })
                ->count(),
        ];
    }

    /** @return Collection<int, EmployeePresenceEvent> */
    public function attendanceLog(
        string $ownerRef,
        Organization $organization,
        Carbon $from,
        Carbon $to,
        ?int $branchId = null,
    ): Collection {
        return $this->eventsQuery($ownerRef, $organization->id, $from, $to, $branchId)
            ->with(['employee'])
            ->orderByDesc('created_at')
            ->limit(200)
            ->get();
    }

    /** @return Collection<int, EmployeePresenceEvent> */
    public function stepOutLog(
        string $ownerRef,
        Organization $organization,
        Carbon $from,
        Carbon $to,
        ?int $branchId = null,
    ): Collection {
        return $this->eventsQuery($ownerRef, $organization->id, $from, $to, $branchId)
            ->where('event', EmployeePresenceEvent::EVENT_STEP_OUT)
            ->with(['employee'])
            ->orderByDesc('created_at')
            ->limit(100)
            ->get();
    }

    protected function eventsQuery(
        string $ownerRef,
        int $organizationId,
        Carbon $from,
        Carbon $to,
        ?int $branchId,
    ) {
        $query = EmployeePresenceEvent::owned($ownerRef)
            ->where('organization_id', $organizationId)
            ->whereBetween('created_at', [$from, $to]);

        if ($branchId) {
            $query->where('branch_id', $branchId);
        }

        return $query;
    }
}