@extends('layouts.app')

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

    {{-- PAGE HEADER --}}
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h3 class="fw-bold text-primary mb-0">
            Manage Trainees ({{ Auth::user()->name }})
        </h3>
        @if($centers && $centers->isNotEmpty())
            <span class="badge bg-success fs-6">
                Centers: {{ $centers->pluck('name')->join(', ') }}
            </span>
        @else
            <span class="badge bg-danger fs-6">No center assigned</span>
        @endif
    </div>

    {{-- SUCCESS MESSAGE --}}
    @if(session('success'))
        <div class="alert alert-success">{{ session('success') }}</div>
    @endif

    {{-- ADD TRAINEE FORM --}}
    <div class="card mb-4">
        <div class="card-header bg-success text-white fw-bold">Add Trainee</div>
        <div class="card-body">
            <form action="{{ route('lead_trainer.add_trainee') }}" method="POST">
                @csrf
                <div class="row">
                    <div class="col-md-4 mb-3">
                        <label>Name</label>
                        <input type="text" name="name" class="form-control" required>
                    </div>
                    <div class="col-md-4 mb-3">
                        <label>Email</label>
                        <input type="email" name="email" class="form-control">
                    </div>
                    <div class="col-md-4 mb-3">
                        <label>Phone</label>
                        <input type="text" name="phone" class="form-control">
                    </div>
                    @if($centers && $centers->isNotEmpty())
                        <div class="col-md-4 mb-3">
                            <label>Assign to Center</label>
                            <select name="center_id" class="form-control" required>
                                @foreach($centers as $center)
                                    <option value="{{ $center->id }}">{{ $center->name }}</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-4 mb-3">
                            <label>Assign to Class</label>
                            <select name="class_room_id" class="form-control" required>
                                @foreach(\App\Models\ClassRoom::whereIn('center_id', $centers->pluck('id'))->get() as $class)
                                    <option value="{{ $class->id }}">
                                        {{ $class->class_number ?? 'Class '.$class->id }} 
                                        ({{ optional($class->center)->name ?? 'N/A' }})
                                    </option>
                                @endforeach
                            </select>
                        </div>
                    @endif
                </div>
                <button class="btn btn-success">Add Trainee</button>
            </form>
        </div>
    </div>

    {{-- TRAINEE LIST --}}
    <div class="card">
        <div class="card-header bg-info text-white fw-bold">
            Trainees in Your Centers
        </div>
        <div class="card-body">
            @if($trainees->isEmpty())
                <p class="text-muted text-center">No trainees found for your centers.</p>
            @else
                <table class="table table-striped align-middle">
                    <thead class="table-light">
                        <tr>
                            <th>Name</th>
                            <th>Email</th>
                            <th>Phone</th>
                            <th>Center</th>
                            <th>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach($trainees as $trainee)
                            @php
                                $assignment = optional($trainee->studentAssignments)->first();
                                $centerName = optional(optional($assignment)->classRoom)->center->name ?? 'N/A';
                            @endphp
                            <tr>
                                <td>{{ $trainee->name }}</td>
                                <td>{{ $trainee->email }}</td>
                                <td>{{ $trainee->phone ?? 'N/A' }}</td>
                                <td>{{ $centerName }}</td>
                                <td>
                                    <form action="{{ route('lead_trainer.remove_trainee', $trainee->id) }}" 
                                          method="POST" 
                                          onsubmit="return confirm('Remove this trainee?');">
                                        @csrf
                                        @method('DELETE')
                                        <button class="btn btn-sm btn-danger">
                                            Remove
                                        </button>
                                    </form>
                                </td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            @endif
        </div>
    </div>
</div>
@endsection