<?php

namespace App\Http\Controllers;

use App\Models\Subscription;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class CalendarSettingsController extends Controller
{
    /* landing page shows the first settings pane (language/region) */
    public function index()
    {
        return redirect()->route('calendar.settings.language');
    }

    /**
     * Language and region
     **/

    /* language and region form */
    public function languageForm(Request $request)
    {
        $user = $request->user();
        $settings = (array) ($user->settings ?? []);

        return $this->frame('calendar.settings.language', [
            'title' => __('calendar.settings.language_region.title'),

            'values' => [
                'language'    => $user->getSetting('app.language', app()->getLocale()),
                'region'      => $user->getSetting('app.region', 'US'),
                'date_format' => $user->getSetting('app.date_format', 'mdy'),
                'time_format' => $user->getSetting('app.time_format', '12'),
            ],

            'options' => [
                'languages' => [
                    'en' => 'English',
                    'es' => 'Spanish',
                    'fr' => 'French',
                    'de' => 'German',
                    'it' => 'Italian',
                    'pt' => 'Portuguese',
                    'nl' => 'Dutch',
                ],
                'regions' => [
                    'US' => 'United States',
                    'CA' => 'Canada',
                    'GB' => 'United Kingdom',
                    'AU' => 'Australia',
                    'NZ' => 'New Zealand',
                    'IE' => 'Ireland',
                    'DE' => 'Germany',
                    'FR' => 'France',
                    'ES' => 'Spain',
                    'IT' => 'Italy',
                    'NL' => 'Netherlands',
                ],
                'date_formats' => [
                    'mdy' => 'MM/DD/YYYY (01/15/2026)',
                    'dmy' => 'DD/MM/YYYY (15/01/2026)',
                    'ymd' => 'YYYY-MM-DD (2026-01-15)',
                ],
                'time_formats' => [
                    '12' => '12-hour (1:30 PM)',
                    '24' => '24-hour (13:30)',
                ],
            ],
        ]);
    }

    /* handle POST from language/region pane */
    public function languageStore(Request $request)
    {
        $data = $request->validate([
            'language'    => ['required', 'string', 'max:10', 'regex:/^[a-z]{2}([-_][A-Z]{2})?$/'],
            'region'      => ['required', 'string', 'size:2', 'regex:/^[A-Z]{2}$/'],
            'date_format' => ['required', 'in:mdy,dmy,ymd'],
            'time_format' => ['required', 'in:12,24'],
        ]);

        $user = $request->user();

        $user->setSettings([
            'app.language' => $data['language'],
            'app.region' => $data['region'],
            'app.date_format' => $data['date_format'],
            'app.time_format' => $data['time_format'],
        ]);

        // apply immediately for the current request cycle going forward
        app()->setLocale($data['language']);

        return redirect()
            ->route('calendar.settings.language')
            ->with('toast', __('Settings saved!'));
    }


    /**
     * Subscribe
     **/

    /* show “Subscribe to a calendar” form */
    public function subscribeForm()
    {
        return $this->frame(
            'calendar.settings.subscribe',
            [
                'title' => 'Subscribe to a calendar',
                'sub'   => 'Add an `.ics` calender from another service'
            ]);
    }

    /* handle POST from the subscribe form */
    public function subscribeStore(Request $request)
    {
        $data = $request->validate([
            'source' => ['required', 'url'],
            'displayname' => ['nullable', 'string', 'max:100'],
            'color' => ['nullable', 'regex:/^#[0-9A-F]{6}$/i'],
        ]);

        // create the calendarsubscription and calendar_meta rows in one call via Subscription model
        Subscription::createWithMeta(
            $request->user(),
            [
                'source'        => $data['source'],
                'displayname'   => $data['displayname'] ?: $data['source'],
                'calendarcolor' => $data['color'] ?? '#1a1a1a',
                // you can add 'refreshrate' => 'P1D' here if you like
            ]
        );

        return redirect()
            ->route('calendar.index')
            ->with('toast', __('Subscription added successfully!'));
    }


    /**
     * content frame handler
     */
    private function frame(?string $view = null, array $data = [])
    {
        return view('calendar.settings.index', [
            'view'  => $view,
            'data'  => $data,
        ]);
    }
}