<?php

namespace App\Services\Qms;

use App\Models\Branch;
use App\Models\Ticket;
use App\Support\DatabaseTime;

class DashboardStats
{
    /**
     * @return array<string, int|float>
     */
    public function forOrganization(string $ownerRef, int $organizationId, ?int $branchId = null): array
    {
        $ticketQuery = Ticket::owned($ownerRef)
            ->where('organization_id', $organizationId)
            ->when($branchId, fn ($q) => $q->where('branch_id', $branchId));

        $todayQuery = (clone $ticketQuery)->whereDate('issued_at', today());

        $waiting = (clone $ticketQuery)->where('status', 'waiting')->count();
        $serving = (clone $ticketQuery)->whereIn('status', ['called', 'serving'])->count();
        $servedToday = (clone $todayQuery)->where('status', 'completed')->count();
        $noShowsToday = (clone $todayQuery)->where('status', 'no_show')->count();

        $waitDiff = DatabaseTime::diffSeconds('issued_at', 'called_at');
        $avgWait = (clone $todayQuery)
            ->where('status', 'completed')
            ->whereNotNull('called_at')
            ->selectRaw("AVG({$waitDiff}) as avg_wait")
            ->value('avg_wait');

        $activeBranches = Branch::owned($ownerRef)
            ->where('organization_id', $organizationId)
            ->where('is_active', true)
            ->when($branchId, fn ($q) => $q->where('id', $branchId))
            ->count();

        return [
            'waiting' => $waiting,
            'serving' => $serving,
            'served_today' => $servedToday,
            'no_shows_today' => $noShowsToday,
            'avg_wait_seconds' => (int) round((float) $avgWait),
            'active_branches' => $activeBranches,
        ];
    }
}