<?php

namespace App\Http\Controllers\Frontdesk;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Frontdesk\Concerns\ScopesToAccount;
use App\Models\Visit;
use App\Services\Frontdesk\BadgeRenderService;
use App\Services\Frontdesk\FrontdeskPermissions;
use App\Services\Frontdesk\OrganizationResolver;
use App\Services\Frontdesk\ReportService;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\View\View;
use Symfony\Component\HttpFoundation\StreamedResponse;

class ReportController extends Controller
{
    use ScopesToAccount;

    public function index(Request $request, ReportService $reports): View
    {
        $this->authorizeAbility($request, 'reports.view');
        $organization = $this->organization($request);
        $owner = $this->ownerRef($request);

        [$from, $to] = $this->dateRange($request);
        $branchId = app(OrganizationResolver::class)->branchScope($this->member($request));

        return view('frontdesk.reports.index', [
            'organization' => $organization,
            'from' => $from->toDateString(),
            'to' => $to->toDateString(),
            'summary' => $reports->summary($owner, $organization, $from, $to, $branchId),
            'peakHours' => $reports->peakHours($owner, $organization, $from, $to, $branchId),
            'departments' => $reports->visitsByDepartment($owner, $organization, $from, $to, $branchId),
            'frequentVisitors' => $reports->frequentVisitors($owner, $organization),
            'security' => $reports->securityIncidents($owner, $organization, $from, $to),
            'dailyCounts' => $reports->dailyCounts($owner, $organization, $from, $to, $branchId),
            'canExport' => app(FrontdeskPermissions::class)->can($this->member($request), 'reports.export'),
        ]);
    }

    public function export(Request $request, ReportService $reports): StreamedResponse
    {
        $this->authorizeAbility($request, 'reports.export');
        $organization = $this->organization($request);
        $owner = $this->ownerRef($request);

        [$from, $to] = $this->dateRange($request);
        $branchId = app(OrganizationResolver::class)->branchScope($this->member($request));
        $summary = $reports->summary($owner, $organization, $from, $to, $branchId);
        $departments = $reports->visitsByDepartment($owner, $organization, $from, $to, $branchId);

        $filename = 'frontdesk-report-'.$from->format('Y-m-d').'-'.$to->format('Y-m-d').'.csv';

        return response()->streamDownload(function () use ($summary, $departments, $from, $to) {
            $handle = fopen('php://output', 'w');
            fputcsv($handle, ['Frontdesk report', $from->toDateString(), 'to', $to->toDateString()]);
            fputcsv($handle, []);
            fputcsv($handle, ['Metric', 'Value']);
            foreach ($summary as $key => $value) {
                fputcsv($handle, [str_replace('_', ' ', $key), $value]);
            }
            fputcsv($handle, []);
            fputcsv($handle, ['Department', 'Visits']);
            foreach ($departments as $row) {
                fputcsv($handle, [$row->department, $row->count]);
            }
            fclose($handle);
        }, $filename, ['Content-Type' => 'text/csv']);
    }

    /** @return array{0: Carbon, 1: Carbon} */
    protected function dateRange(Request $request): array
    {
        $from = $request->filled('from')
            ? Carbon::parse($request->string('from'))->startOfDay()
            : now()->subDays(30)->startOfDay();
        $to = $request->filled('to')
            ? Carbon::parse($request->string('to'))->endOfDay()
            : now()->endOfDay();

        return [$from, $to];
    }
}