@extends('layouts.app')

@section('content')
<div class="container py-4">
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h3 class="fw-bold text-success">Assign Teacher on Duty</h3>
        <a href="{{ route('admin.teachers_on_duty.index') }}" class="btn btn-secondary">
            <i class="bi bi-arrow-left"></i> Back
        </a>
    </div>

    <div class="card shadow-sm border-0">
        <div class="card-body p-4">

            {{-- ERROR ALERT --}}
            @if ($errors->any())
                <div class="alert alert-danger alert-dismissible fade show">
                    <i class="bi bi-exclamation-triangle"></i>
                    <ul class="mb-0">
                        @foreach ($errors->all() as $error)
                            <li>{{ $error }}</li>
                        @endforeach
                    </ul>
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                </div>
            @endif

            <form action="{{ route('admin.teachers_on_duty.store') }}" method="POST">
                @csrf

                {{-- SELECT TEACHER --}}
                <div class="mb-3">
                    <label class="form-label fw-bold">Select Teacher</label>
                    <select name="teacher_id" id="teacher_id" class="form-select" required>
                        <option value="">-- Choose a Teacher --</option>
                        @foreach($teachers as $teacher)
                            <option value="{{ $teacher->id }}">{{ $teacher->name }} ({{ $teacher->id_number }})</option>
                        @endforeach
                    </select>
                </div>

                {{-- AUTO-FILLED FIELDS --}}
                <div class="row g-3">
                    <div class="col-md-6">
                        <label class="form-label fw-bold">Full Name</label>
                        <input type="text" id="name" class="form-control" disabled>
                    </div>

                    <div class="col-md-6">
                        <label class="form-label fw-bold">ID Number</label>
                        <input type="text" id="id_number" class="form-control" disabled>
                    </div>

                    <div class="col-md-6">
                        <label class="form-label fw-bold">Phone</label>
                        <input type="text" id="phone" class="form-control" disabled>
                    </div>

                    <div class="col-md-6">
                        <label class="form-label fw-bold">Assigned Center</label>
                        <input type="text" id="center" class="form-control" disabled>
                    </div>
                </div>

                {{-- DUTY DATE --}}
                <div class="mt-4 mb-3">
                    <label class="form-label fw-bold">Duty Date</label>
                    <input type="date" name="duty_date" class="form-control" value="{{ old('duty_date') }}" required>
                </div>

                {{-- SUBMIT --}}
                <div class="d-flex gap-2">
                    <button type="submit" class="btn btn-success">
                        <i class="bi bi-check-circle"></i> Assign
                    </button>
                    <a href="{{ route('admin.teachers_on_duty.index') }}" class="btn btn-secondary">
                        <i class="bi bi-x-circle"></i> Cancel
                    </a>
                </div>
            </form>
        </div>
    </div>
</div>

{{-- AJAX AUTO-FILL --}}
<script>
document.addEventListener('DOMContentLoaded', function () {
    const teacherSelect = document.getElementById('teacher_id');

    teacherSelect.addEventListener('change', function () {
        const teacherId = this.value;

        if (!teacherId) {
            document.getElementById('name').value = '';
            document.getElementById('id_number').value = '';
            document.getElementById('phone').value = '';
            document.getElementById('center').value = '';
            return;
        }

        fetch(`/api/teachers/${teacherId}`)
            .then(res => res.json())
            .then(data => {
                document.getElementById('name').value = data.name || '';
                document.getElementById('id_number').value = data.id_number || '';
                document.getElementById('phone').value = data.phone || '';
                document.getElementById('center').value = data.center?.name || '';
            })
            .catch(err => console.error('Error fetching teacher:', err));
    });
});
</script>
@endsection