@extends('layouts.app')

@section('title', 'Расписание преподавателя')

{{--
    Ports app/Views/schedule/teacher.php (legacy) — see the Phase 45 plan.
    Grid match is start-time-only (compares only the slot's start time
    against each schedule item's begin_time), not the full "HH:00 - HH:50"
    exact-string match TeacherController::show() uses (Phase 42) — a more
    lenient match, preserved verbatim. $timeSlots is also irregular (an
    initial "8:00 - 9:00" slot, then 50-minute slots) — not normalized.
--}}

@section('content')
    <div class="container mt-4">
        <h3 class="mb-4">Расписание преподавателя</h3>
        <div class="table-responsive">
            <table class="table table-bordered">
                <thead>
                    <tr>
                        <th>Время</th>
                        @foreach ($daysOfWeek as $day)
                            <th>{{ $day }}</th>
                        @endforeach
                    </tr>
                </thead>
                <tbody>
                    @foreach ($timeSlots as $timeSlot)
                        <tr>
                            <td>{{ $timeSlot }}</td>
                            @foreach ($daysOfWeek as $index => $day)
                                <td>
                                    @php
                                        $isScheduled = false;
                                        $cellParts = [];
                                        foreach ($teacherInfo as $group) {
                                            foreach ($group['schedule'] as $scheduleItem) {
                                                $weekdaysValue = $scheduleItem['weekdays'];

                                                if (($weekdaysValue & (1 << $index)) !== 0) {
                                                    $scheduleStart = date('H:i', strtotime($scheduleItem['begin_time']));
                                                    $slotStart = explode(' - ', $timeSlot)[0];

                                                    if ($scheduleStart == $slotStart) {
                                                        $isScheduled = true;
                                                        $text = $group['group_name'];
                                                        if (! empty($scheduleItem['classroom_name'])) {
                                                            $text .= ' ('.$scheduleItem['classroom_name'].')';
                                                        }
                                                        $cellParts[] = $text;
                                                    }
                                                }
                                            }
                                        }
                                    @endphp
                                    @if ($isScheduled)
                                        @foreach ($cellParts as $part)
                                            {{ $part }}<br>
                                        @endforeach
                                    @else
                                        &nbsp;
                                    @endif
                                </td>
                            @endforeach
                        </tr>
                    @endforeach
                </tbody>
            </table>
        </div>
    </div>
@endsection