@extends('layouts.app')

@section('title', 'Информация о преподавателе')

{{--
    Ports app/Views/admin/teachers/show.php (legacy) + the render() payload
    from App\Controllers\TeacherController::show() — see the Phase 42 plan.

    All 4 write actions (update_info/update_price/update_password/delete)
    post to this same URL with a hidden _action field, dispatched server-side
    by TeacherController::dispatchAction() — mirroring the legacy closure
    route exactly. None of the three edit modals repopulate old input on a
    validation failure (confirmed: legacy's own view never references
    Old:: for these fields) — only a plain flash message is shown, matching
    legacy exactly.

    Schedule grid is rendered server-side with the exact same PHP loop logic
    as legacy, including its exact-string match on a computed "HH:00 - HH:50"
    range — a non-hour-aligned begin_time silently never appears in the grid.
    getGroupsWithSchedule() also has no end_date filter, so stale/expired
    schedule slots can still render here (both preserved, not fixed).
--}}

@section('content')
<div class="container mt-4">

    <div class="card shadow-sm mb-4">
        <div class="card-body">
            <div class="d-flex justify-content-between align-items-center">
                <h4 class="card-title mb-0">{{ $teacher['teacher_name'] }}</h4>
                <div class="d-flex gap-2">
                    <button class="btn btn-sm btn-outline-secondary"
                        data-bs-toggle="modal"
                        data-bs-target="#editTeacherModal">
                        Редактировать
                    </button>
                    <form method="POST" action="/admin/teacher_admin_info.php?teacher_id={{ $teacherId }}"
                          onsubmit="return confirm('Вы уверены, что хотите удалить преподавателя?');">
                        @csrf
                        <input type="hidden" name="_action" value="delete">
                        <button type="submit" class="btn btn-sm btn-danger">Удалить</button>
                    </form>
                    <button class="btn btn-sm btn-warning" data-bs-toggle="modal" data-bs-target="#editPasswordModal">Изменить пароль</button>
                </div>
            </div>

            <p><strong>Email:</strong> {{ $teacher['email'] }}</p>
            <p><strong>ИИН:</strong> {{ $teacher['iin'] ?? '' }}</p>
            <div class="d-flex align-items-center justify-content-between">
                <p class="mb-0">
                    <strong>Ставка:</strong>
                    {{ $teacher['price_value'] !== null ? $teacher['price_value'].' тг' : 'Не указана' }}
                </p>
                <button class="btn btn-sm btn-outline-primary" data-bs-toggle="modal" data-bs-target="#editPriceModal">
                    Изменить
                </button>
            </div>
        </div>
    </div>

    <div class="card shadow-sm mb-4">
        <div class="card-body">
            <h5 class="card-title">Группы преподавателя</h5>
            <ul class="list-group">
                @foreach ($groups as $group)
                    <li class="list-group-item">
                        <strong>Группа:</strong>
                        <a href="/group_admin_info.php?group_id={{ (int) $group['id'] }}"
                           class="text-decoration-none fw-semibold">
                            {{ $group['group_name'] }}
                        </a>
                        <br>
                        <strong>Предмет:</strong> {{ $group['discipline_name'] }}<br>
                        <strong>Уровень:</strong> {{ $group['class_name'] }}<br>
                        <strong>Тип обучения:</strong> {{ $group['learning_type_name'] }}
                    </li>
                @endforeach
            </ul>
        </div>
    </div>

    <div class="card shadow-sm mb-4">
        <div class="card-body">
            <h5 class="card-title">Расписание преподавателя</h5>
            <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;
                                    $cellGroupNames = [];
                                    foreach ($groups as $group) {
                                        foreach ($group['schedule'] as $scheduleItem) {
                                            $weekdaysValue = $scheduleItem['weekdays'];
                                            if (($weekdaysValue & (1 << $index)) !== 0) {
                                                $scheduleTime = $scheduleItem['begin_time'];
                                                $scheduleTimeFormatted = date('H:i', strtotime($scheduleTime)) . ' - ' . date('H:i', strtotime('+50 minutes', strtotime($scheduleTime)));
                                                if ($scheduleTimeFormatted == $timeSlot) {
                                                    $isScheduled = true;
                                                    $cellGroupNames[] = $group['group_name'];
                                                }
                                            }
                                        }
                                    }
                                @endphp
                                @if ($isScheduled)
                                    @foreach ($cellGroupNames as $gn)
                                        {{ $gn }}<br>
                                    @endforeach
                                @else
                                    &nbsp;
                                @endif
                            </td>
                        @endforeach
                    </tr>
                @endforeach
                </tbody>
            </table>
        </div>
    </div>

    @php
        $finTotalRevenue = array_sum(array_column($financials, 'revenue'));
        $finTotalRent    = array_sum(array_column($financials, 'rent_total'));
        $finTotalTeacher = array_sum(array_map(
            fn($r) => ($r['teacher_price'] ?? 0) * $r['lessons_count'],
            $financials
        ));
        $finTotalCosts  = $finTotalTeacher + $finTotalRent;
        $finTotalProfit = $finTotalRevenue - $finTotalCosts;

        $prevMonth = $finMonth === 1  ? 12        : $finMonth - 1;
        $prevYear  = $finMonth === 1  ? $finYear - 1 : $finYear;
        $nextMonth = $finMonth === 12 ? 1         : $finMonth + 1;
        $nextYear  = $finMonth === 12 ? $finYear + 1 : $finYear;
        $baseUrl   = "/admin/teacher_admin_info.php?teacher_id={$teacherId}";
    @endphp

    <div class="card shadow-sm mb-4">
        <div class="card-header">
            <div class="d-flex flex-wrap align-items-center gap-2">
                <strong class="me-auto">Финансы по группам</strong>

                <a href="{{ $baseUrl }}&year={{ $prevYear }}&month={{ $prevMonth }}"
                   class="btn btn-outline-secondary btn-sm">&larr;</a>

                <form method="GET" action="/admin/teacher_admin_info.php" class="d-flex gap-2 align-items-center">
                    <input type="hidden" name="teacher_id" value="{{ $teacherId }}">
                    <select name="month" class="form-select form-select-sm" style="width:120px"
                            onchange="this.form.submit()">
                        @foreach ($monthNames as $i => $mn)
                            <option value="{{ $i + 1 }}" {{ ($i + 1 === $finMonth) ? 'selected' : '' }}>
                                {{ $mn }}
                            </option>
                        @endforeach
                    </select>
                    <select name="year" class="form-select form-select-sm" style="width:85px"
                            onchange="this.form.submit()">
                        @for ($y = date('Y'); $y >= 2023; $y--)
                            <option value="{{ $y }}" {{ $y == $finYear ? 'selected' : '' }}>
                                {{ $y }}
                            </option>
                        @endfor
                    </select>
                </form>

                <a href="{{ $baseUrl }}&year={{ $nextYear }}&month={{ $nextMonth }}"
                   class="btn btn-outline-secondary btn-sm">&rarr;</a>
            </div>
        </div>

        <div class="card-body p-0">

            @if (empty($financials))
                <p class="text-muted p-3 mb-0">Нет данных за выбранный период.</p>
            @else

            <div class="row g-2 p-3 pb-2">
                <div class="col-6 col-md-3">
                    <div class="border rounded p-2 text-center">
                        <div class="small text-muted">Начислено</div>
                        <div class="fw-bold text-success">
                            {{ number_format($finTotalRevenue, 0, ',', ' ') }} &#8376;
                        </div>
                    </div>
                </div>
                <div class="col-6 col-md-3">
                    <div class="border rounded p-2 text-center">
                        <div class="small text-muted">Зарплата (группы)</div>
                        <div class="fw-bold text-warning">
                            {{ number_format($finTotalTeacher, 0, ',', ' ') }} &#8376;
                        </div>
                    </div>
                </div>
                <div class="col-6 col-md-3">
                    <div class="border rounded p-2 text-center">
                        <div class="small text-muted">Аренда</div>
                        <div class="fw-bold text-danger">
                            {{ number_format($finTotalRent, 0, ',', ' ') }} &#8376;
                        </div>
                    </div>
                </div>
                <div class="col-6 col-md-3">
                    <div class="border rounded p-2 text-center">
                        <div class="small text-muted">Прибыль</div>
                        <div class="fw-bold {{ $finTotalProfit >= 0 ? 'text-success' : 'text-danger' }}">
                            {{ number_format($finTotalProfit, 0, ',', ' ') }} &#8376;
                        </div>
                    </div>
                </div>
            </div>

            <div class="table-responsive">
                <table class="table table-hover align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th>Группа</th>
                            <th class="text-center">Уроков</th>
                            <th class="text-center">Студентов</th>
                            <th class="text-end">Начислено</th>
                            <th class="text-end">Зарплата</th>
                            <th class="text-end">Аренда</th>
                            <th class="text-end">Прибыль</th>
                            <th class="text-center">Маржа</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach ($financials as $r)
                            @php
                                $tCost   = ($r['teacher_price'] ?? 0) * $r['lessons_count'];
                                $rent    = (float) $r['rent_total'];
                                $profit  = (float) $r['revenue'] - $tCost - $rent;
                                $margin  = (float) $r['revenue'] > 0
                                    ? round(($profit / (float) $r['revenue']) * 100, 1)
                                    : 0;
                            @endphp
                            <tr>
                                <td>
                                    <a href="/group_admin_info.php?group_id={{ (int) $r['group_id'] }}"
                                       class="text-decoration-none fw-semibold">
                                        {{ $r['group_name'] }}
                                    </a>
                                </td>
                                <td class="text-center">{{ $r['lessons_count'] }}</td>
                                <td class="text-center">{{ $r['student_count'] }}</td>
                                <td class="text-end text-success">{{ number_format($r['revenue'], 0, ',', ' ') }}</td>
                                <td class="text-end text-warning">{{ number_format($tCost, 0, ',', ' ') }}</td>
                                <td class="text-end text-danger">{{ number_format($rent, 0, ',', ' ') }}</td>
                                <td class="text-end fw-semibold {{ $profit >= 0 ? 'text-success' : 'text-danger' }}">
                                    {{ number_format($profit, 0, ',', ' ') }}
                                </td>
                                <td class="text-center {{ $margin >= 0 ? 'text-success' : 'text-danger' }}">
                                    {{ $margin }}%
                                </td>
                            </tr>
                        @endforeach

                        <tr class="table-secondary fw-bold">
                            <td>Итого</td>
                            <td class="text-center">&mdash;</td>
                            <td class="text-center">&mdash;</td>
                            <td class="text-end text-success">{{ number_format($finTotalRevenue, 0, ',', ' ') }}</td>
                            <td class="text-end text-warning">{{ number_format($finTotalTeacher, 0, ',', ' ') }}</td>
                            <td class="text-end text-danger">{{ number_format($finTotalRent, 0, ',', ' ') }}</td>
                            <td class="text-end {{ $finTotalProfit >= 0 ? 'text-success' : 'text-danger' }}">
                                {{ number_format($finTotalProfit, 0, ',', ' ') }}
                            </td>
                            <td class="text-center {{ $finTotalRevenue > 0 && ($finTotalProfit/$finTotalRevenue*100) >= 0 ? 'text-success' : 'text-danger' }}">
                                {{ $finTotalRevenue > 0 ? round($finTotalProfit / $finTotalRevenue * 100, 1) : 0 }}%
                            </td>
                        </tr>
                    </tbody>
                </table>
            </div>

            @endif
        </div>
    </div>

</div>

<div class="modal fade" id="editTeacherModal" tabindex="-1" aria-labelledby="editTeacherModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <form method="POST" action="/admin/teacher_admin_info.php?teacher_id={{ $teacherId }}" class="modal-content">
      @csrf
      <input type="hidden" name="_action" value="update_info">

      <div class="modal-header">
        <h5 class="modal-title" id="editTeacherModalLabel">Редактировать преподавателя</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>

      <div class="modal-body">
        <div class="mb-3">
          <label class="form-label">Имя</label>
          <input type="text"
                 class="form-control"
                 name="name"
                 value="{{ $teacher['teacher_name'] }}"
                 required>
        </div>

        <div class="mb-3">
          <label class="form-label">Email</label>
          <input type="email"
                 class="form-control"
                 name="email"
                 value="{{ $teacher['email'] }}"
                 required>
        </div>

        <div class="mb-3">
          <label class="form-label">ИИН</label>
          <input type="text"
                 class="form-control"
                 name="iin"
                 maxlength="12" inputmode="numeric" pattern="\d{12}"
                 value="{{ $teacher['iin'] ?? '' }}">
        </div>
      </div>

      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Отмена</button>
        <button type="submit" class="btn btn-primary">Сохранить</button>
      </div>
    </form>
  </div>
</div>

<div class="modal fade" id="editPriceModal" tabindex="-1" aria-labelledby="editPriceModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <form method="POST" action="/admin/teacher_admin_info.php?teacher_id={{ $teacherId }}" class="modal-content">
      @csrf
      <input type="hidden" name="_action" value="update_price">
      <div class="modal-header">
        <h5 class="modal-title" id="editPriceModalLabel">Изменить ставку преподавателя</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Закрыть"></button>
      </div>
      <div class="modal-body">
        <div class="mb-3">
          <label for="new_price" class="form-label">Новая ставка (тг)</label>
          <input type="number" step="0.01" min="0" class="form-control" name="new_price" id="new_price" required>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Отмена</button>
        <button type="submit" class="btn btn-primary">Сохранить</button>
      </div>
    </form>
  </div>
</div>

<div class="modal fade" id="editPasswordModal" tabindex="-1" aria-labelledby="editPasswordModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <form method="POST" action="/admin/teacher_admin_info.php?teacher_id={{ $teacherId }}" class="modal-content">
      @csrf
      <input type="hidden" name="_action" value="update_password">
      <div class="modal-header">
        <h5 class="modal-title" id="editPasswordModalLabel">Изменить пароль преподавателя</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Закрыть"></button>
      </div>
      <div class="modal-body">
        <div class="mb-3">
          <label for="new_password" class="form-label">Новый пароль</label>
          <input type="password" class="form-control" name="new_password" id="new_password" required minlength="6">
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Отмена</button>
        <button type="submit" class="btn btn-warning">Сохранить</button>
      </div>
    </form>
  </div>
</div>
@endsection