<?php

namespace App\Http\Controllers\Frontdesk;

use App\Http\Controllers\Controller;
use App\Models\Device;
use App\Models\Host;
use App\Models\Organization;
use App\Services\Frontdesk\EmployeePresenceService;
use App\Services\Frontdesk\VisitCheckInService;
use App\Services\Frontdesk\VisitorTypeService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Validation\ValidationException;

class KioskDeviceController extends Controller
{
    public function show(Request $request, VisitorTypeService $visitorTypes): View
    {
        $device = $this->device($request);
        $organization = Organization::findOrFail($device->organization_id);
        $settings = $organization->settings ?? [];

        $hosts = Host::owned($device->owner_ref)
            ->where('organization_id', $organization->id)
            ->where('is_available', true);

        if ($device->branch_id) {
            $hosts->where(function ($q) use ($device) {
                $q->whereNull('branch_id')->orWhere('branch_id', $device->branch_id);
            });
        }

        $hosts = $hosts->orderBy('name')->get();

        $employeeKioskEnabled = (bool) ($settings['employee_kiosk_enabled'] ?? true);

        return view('frontdesk.kiosk.index', [
            'organization' => $organization,
            'hosts' => $hosts,
            'visitorTypes' => config('frontdesk.visitor_types'),
            'typeConfigs' => $visitorTypes->configsForFrontend(),
            'resetSeconds' => (int) ($settings['kiosk_reset_seconds'] ?? config('frontdesk.kiosk.inactivity_reset_seconds', 120)),
            'visitorPolicy' => $settings['visitor_policy'] ?? null,
            'checkInUrl' => route('frontdesk.kiosk.device.check-in', $device->device_token),
            'employeeKioskEnabled' => $employeeKioskEnabled,
            'stepOutReasons' => collect(config('frontdesk.employee_step_out_reasons'))
                ->map(fn ($label, $key) => ['key' => $key, 'label' => $label])
                ->values(),
            'staffActionUrl' => route('frontdesk.kiosk.device.staff.action', $device->device_token),
        ]);
    }

    public function staffAction(Request $request, EmployeePresenceService $presence): JsonResponse
    {
        $device = $this->device($request);
        $organization = Organization::findOrFail($device->organization_id);

        $validated = $request->validate([
            'employee_code' => ['nullable', 'string', 'max:32'],
            'qr_token' => ['nullable', 'string', 'max:500'],
            'pin' => ['required', 'string', 'regex:/^\d{4,6}$/'],
            'action' => ['required', 'string', 'in:identify,sign_in,sign_out,step_out,step_in'],
            'step_out_reason' => ['nullable', 'string', 'in:'.implode(',', array_keys(config('frontdesk.employee_step_out_reasons')))],
            'destination' => ['nullable', 'string', 'max:255'],
            'notes' => ['nullable', 'string', 'max:500'],
            'expected_return_at' => ['nullable', 'date'],
            'confirm_branch_mismatch' => ['boolean'],
        ]);

        if (empty($validated['employee_code']) && empty($validated['qr_token'])) {
            throw ValidationException::withMessages([
                'credentials' => 'Enter your employee code or scan your badge.',
            ]);
        }

        $employee = $presence->resolveEmployee($organization, $validated);

        if ($validated['action'] === 'identify') {
            return response()->json([
                'employee' => $presence->employeePayload($employee),
            ]);
        }

        match ($validated['action']) {
            'sign_in' => $result = $presence->signIn($employee, $device, (bool) ($validated['confirm_branch_mismatch'] ?? false)),
            'sign_out' => $presence->signOut($employee, $device),
            'step_out' => $presence->stepOut($employee, [
                'step_out_reason' => $validated['step_out_reason'] ?? 'other',
                'destination' => $validated['destination'] ?? null,
                'notes' => $validated['notes'] ?? null,
                'expected_return_at' => $validated['expected_return_at'] ?? null,
            ], $device),
            'step_in' => $presence->stepIn($employee, $device),
            default => null,
        };

        $response = [
            'employee' => $presence->employeePayload($employee->fresh()),
            'message' => match ($validated['action']) {
                'sign_in' => 'Signed in successfully.',
                'sign_out' => 'Signed out for the day.',
                'step_out' => 'Stepped out recorded.',
                'step_in' => 'Welcome back!',
                default => 'Done.',
            },
        ];

        if ($validated['action'] === 'sign_in' && isset($result['warning']) && $result['warning']) {
            $response['warning'] = $result['warning'];
        }

        return response()->json($response);
    }

    public function checkIn(Request $request, VisitCheckInService $checkIn, VisitorTypeService $visitorTypes): JsonResponse
    {
        $device = $this->device($request);
        $organization = Organization::findOrFail($device->organization_id);
        $visitorType = $request->input('visitor_type', 'visitor');

        $validated = $request->validate(array_merge([
            'full_name' => ['required', 'string', 'max:255'],
            'company' => ['nullable', 'string', 'max:255'],
            'phone' => ['nullable', 'string', 'max:50'],
            'email' => ['nullable', 'email', 'max:255'],
            'host_id' => ['nullable', 'integer'],
            'visitor_type' => ['required', 'string', 'in:'.implode(',', array_keys(config('frontdesk.visitor_types')))],
            'purpose' => ['nullable', 'string', 'max:500'],
            'expected_duration_minutes' => ['nullable', 'integer'],
            'policies_accepted' => ['accepted'],
            'photo_data' => ['nullable', 'string'],
            'vehicle_info' => ['nullable', 'array'],
            'signature_path' => ['nullable', 'string'],
        ], $visitorTypes->validationRules($visitorType)));

        $payload = $visitorTypes->enrichCheckInData($visitorType, $validated, $organization);
        if (! empty($validated['photo_data'])) {
            $payload['photo_data'] = $validated['photo_data'];
        }
        $payload['branch_id'] = $device->branch_id;
        $payload['reception_desk_id'] = $device->reception_desk_id;

        $visit = $checkIn->checkIn($device->owner_ref, $organization, $payload);

        return response()->json([
            'visit' => [
                'id' => $visit->id,
                'public_id' => $visit->public_id,
                'badge_code' => $visit->badge_code,
                'visitor_name' => $visit->visitor->full_name,
                'host_name' => $visit->host?->name,
                'status' => $visit->status,
                'awaiting_approval' => $visit->awaitingApproval(),
                'checked_in_at' => $visit->checked_in_at?->toIso8601String(),
                'badge_url' => $visit->isInside() ? route('frontdesk.visits.badge', $visit) : null,
                'host_notified' => (bool) ($visit->host_notified ?? false),
            ],
        ]);
    }

    protected function device(Request $request): Device
    {
        return $request->attributes->get('frontdesk.device')
            ?? abort(404);
    }
}