<?php

namespace App\Http\Controllers\Api\V1\Supervisor;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Concerns\RespondsWithJson;
use App\Http\Middleware\EnsureSupervisorScope;
use App\Models\Supervisor;
use Carbon\Carbon;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class DashboardController extends Controller
{
    use RespondsWithJson;

    public function index(Request $request): JsonResponse
    {
        /** @var Supervisor $supervisor */
        $supervisor = $request->attributes->get('supervisor') ?? $request->user();

        $today = Carbon::today();
        $statsQuery = EnsureSupervisorScope::dailyStatsQuery($supervisor)
            ->where('stat_date', $today);

        $todayStats = $statsQuery->get();

        $machinesQuery = EnsureSupervisorScope::machinesQuery($supervisor);
        $offlineThreshold = now()->subMinutes((int) config('laverie.machine.offline_threshold_minutes', 10));

        return $this->success([
            'summary' => [
                'machines_total' => (clone $machinesQuery)->count(),
                'machines_available' => (clone $machinesQuery)->where('status', 'available')->count(),
                'machines_running' => (clone $machinesQuery)->where('status', 'running')->count(),
                'machines_offline' => (clone $machinesQuery)->where(function ($q) use ($offlineThreshold) {
                    $q->where('status', 'offline')
                        ->orWhere(fn ($q) => $q->where('last_heartbeat_at', '<', $offlineThreshold));
                })->count(),
                'bookings_today' => EnsureSupervisorScope::bookingsQuery($supervisor)
                    ->whereDate('slot_start', $today)
                    ->count(),
                'washes_today' => EnsureSupervisorScope::washesQuery($supervisor)
                    ->whereDate('started_at', $today)
                    ->count(),
                'revenue_today' => (float) $todayStats->sum('total_revenue'),
                'top_up_today' => (float) $todayStats->sum('top_up_amount'),
            ],
            'establishments' => $todayStats->map(fn ($stat) => [
                'establishment_id' => $stat->establishment_id,
                'establishment_name' => $stat->establishment?->name,
                'total_washes' => $stat->total_washes,
                'total_revenue' => (float) $stat->total_revenue,
                'bookings_count' => $stat->bookings_count,
                'no_show_count' => $stat->no_show_count,
                'occupancy_rate' => (float) $stat->occupancy_rate,
            ]),
        ]);
    }
}