<?php

declare(strict_types=1);

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\DestroySubscriberRequest;
use App\Http\Requests\Admin\IndexSubscriberRequest;
use App\Http\Requests\Admin\QueueMailwizzSyncRequest;
use App\Models\PreregistrationPage;
use App\Models\Subscriber;
use App\Services\DispatchUnsyncedMailwizzSyncJobsService;
use Illuminate\Http\RedirectResponse;
use Illuminate\View\View;
use Symfony\Component\HttpFoundation\StreamedResponse;

class SubscriberController extends Controller
{
    public function index(IndexSubscriberRequest $request, PreregistrationPage $page): View
    {
        $search = $request->validated('search');
        $subscribers = $page->subscribers()
            ->search(is_string($search) ? $search : null)
            ->orderByDesc('created_at')
            ->paginate(25)
            ->withQueryString();

        $page->loadMissing('mailwizzConfig');
        $unsyncedMailwizzCount = $page->mailwizzConfig !== null
            ? (int) $page->subscribers()->where('synced_to_mailwizz', false)->count()
            : 0;

        return view('admin.subscribers.index', compact('page', 'subscribers', 'unsyncedMailwizzCount'));
    }

    public function destroy(DestroySubscriberRequest $request, PreregistrationPage $page, Subscriber $subscriber): RedirectResponse
    {
        $subscriber->delete();

        return redirect()
            ->route('admin.pages.subscribers.index', $page)
            ->with('status', __('Subscriber removed.'));
    }

    public function queueMailwizzSync(
        QueueMailwizzSyncRequest $request,
        PreregistrationPage $page,
        DispatchUnsyncedMailwizzSyncJobsService $dispatcher
    ): RedirectResponse {
        $page->loadMissing('mailwizzConfig');

        if ($page->mailwizzConfig === null) {
            return redirect()
                ->route('admin.pages.subscribers.index', $page)
                ->with('error', __('This page has no Mailwizz integration.'));
        }

        $count = $dispatcher->dispatch($page->id);

        if ($count === 0) {
            return redirect()
                ->route('admin.pages.subscribers.index', $page)
                ->with('status', __('There are no unsynced subscribers to queue for this page.'));
        }

        return redirect()
            ->route('admin.pages.subscribers.index', $page)
            ->with('status', trans_choice(
                'Queued Mailwizz sync for :count subscriber.|Queued Mailwizz sync for :count subscribers.',
                $count,
                ['count' => $count]
            ));
    }

    public function export(IndexSubscriberRequest $request, PreregistrationPage $page): StreamedResponse
    {
        $search = $request->validated('search');
        $subscribers = $page->subscribers()
            ->search(is_string($search) ? $search : null)
            ->orderBy('created_at')
            ->get();

        $phoneEnabled = $page->isPhoneFieldEnabledForSubscribers();

        return response()->streamDownload(function () use ($subscribers, $phoneEnabled): void {
            $handle = fopen('php://output', 'w');
            $headers = ['First Name', 'Last Name', 'Email'];
            if ($phoneEnabled) {
                $headers[] = 'Phone';
            }
            $headers = array_merge($headers, ['Coupon Code', 'Registered At', 'Synced to Mailwizz', 'Synced At']);
            fputcsv($handle, $headers);

            foreach ($subscribers as $sub) {
                $row = [$sub->first_name, $sub->last_name, $sub->email];
                if ($phoneEnabled) {
                    $row[] = $sub->phoneDisplay() ?? '';
                }
                $row[] = $sub->coupon_code ?? '';
                $row[] = $sub->created_at?->toDateTimeString() ?? '';
                $row[] = $sub->synced_to_mailwizz ? 'Yes' : 'No';
                $row[] = $sub->synced_at?->toDateTimeString() ?? '';
                fputcsv($handle, $row);
            }

            fclose($handle);
        }, 'subscribers-'.$page->slug.'.csv', [
            'Content-Type' => 'text/csv; charset=UTF-8',
        ]);
    }
}