@extends('layouts.app')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-md-12">
            <div class="card shadow-sm border-0 rounded-3">
                
                {{-- 🧭 Header --}}
                <div class="card-header bg-primary text-white d-flex justify-content-between align-items-center">
                    <h4 class="mb-0"><i class="fas fa-users me-2"></i> Students Management</h4>
                    <div class="d-flex gap-2">
                        <a href="{{ asset('samples/students_import_template.xlsx') }}" class="btn btn-light btn-sm">
                            <i class="fas fa-download"></i> Template
                        </a>
                        <a href="{{ route('students.create') }}" class="btn btn-light btn-sm">
                            <i class="fas fa-plus"></i> Add New
                        </a>
                    </div>
                </div>

                <div class="card-body">
                    
                    {{-- ✅ Import Excel Form --}}
                    <form action="{{ route('students.import') }}" method="POST" enctype="multipart/form-data" class="mb-4 border p-3 bg-light rounded">
                        @csrf
                        <div class="row align-items-center g-2">
                            <div class="col-md-6">
                                <input type="file" name="file" class="form-control" accept=".xls,.xlsx,.csv" required>
                                <small class="text-muted">Upload Excel file with columns: name, email, username, national_id, father_name, phone, institute_id, status, batch_id</small>
                            </div>
                            <div class="col-md-3">
                                <button type="submit" class="btn btn-success w-100">
                                    <i class="fas fa-file-excel"></i> Import Students
                                </button>
                            </div>
                        </div>
                    </form>

                    {{-- ✅ Filter Form --}}
                    <form action="{{ route('students.index') }}" method="GET" class="row mb-4 g-2">
                        <div class="col-md-4">
                            <input type="text" name="search" class="form-control"
                                placeholder="Search by name, username, or ID..."
                                value="{{ request('search') }}">
                        </div>
                        <div class="col-md-3">
                            <select name="status" class="form-select">
                                <option value="">All Status</option>
                                <option value="active" {{ request('status') == 'active' ? 'selected' : '' }}>Active</option>
                                <option value="inactive" {{ request('status') == 'inactive' ? 'selected' : '' }}>Inactive</option>
                                <option value="suspended" {{ request('status') == 'suspended' ? 'selected' : '' }}>Suspended</option>
                                <option value="graduated" {{ request('status') == 'graduated' ? 'selected' : '' }}>Graduated</option>
                            </select>
                        </div>
                        <div class="col-md-2">
                            <button type="submit" class="btn btn-primary w-100"><i class="fas fa-filter"></i> Filter</button>
                        </div>
                        <div class="col-md-2">
                            <a href="{{ route('students.index') }}" class="btn btn-secondary w-100"><i class="fas fa-undo"></i> Reset</a>
                        </div>
                    </form>

                    {{-- ✅ Students Table --}}
                    <div class="table-responsive">
                        <table class="table table-bordered table-striped align-middle">
                            <thead class="table-dark text-center">
                                <tr>
                                    <th>ID</th>
                                    <th>Full Name</th>
                                    <th>Username</th>
                                    <th>Email</th>
                                    <th>National ID</th>
                                    <th>Phone</th>
                                    <th>Institute ID</th>
                                    <th>Batch</th>
                                    <th>Status</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                @forelse($students as $student)
                                    <tr>
                                        <td class="text-center">{{ $student->id }}</td>
                                        <td>{{ $student->name ?? 'N/A' }}</td>
                                        <td>{{ $student->user->username ?? 'N/A' }}</td>
                                        <td>{{ $student->user->email ?? 'N/A' }}</td>
                                        <td>{{ $student->national_id ?? 'N/A' }}</td>
                                        <td>{{ $student->phone ?? 'N/A' }}</td>
                                        <td>{{ $student->institute_id ?? 'N/A' }}</td>

                                        {{-- ✅ Display Batch --}}
                                        <td>
                                            @if($student->batch)
                                                <span class="badge bg-info text-dark mb-1">
                                                    {{ $student->batch->name }}
                                                    @if($student->status === 'active')
                                                        <i class="fas fa-check-circle text-success ms-1"></i>
                                                    @else
                                                        <i class="fas fa-clock text-muted ms-1"></i>
                                                    @endif
                                                </span>
                                            @else
                                                <span class="text-muted">No Batch</span>
                                            @endif
                                        </td>

                                        {{-- ✅ Status --}}
                                        <td class="text-center">
                                            @if($student->status === 'active')
                                                <span class="badge bg-success">Active</span>
                                            @elseif($student->status === 'inactive')
                                                <span class="badge bg-secondary">Inactive</span>
                                            @elseif($student->status === 'graduated')
                                                <span class="badge bg-primary">Graduated</span>
                                            @elseif($student->status === 'suspended')
                                                <span class="badge bg-warning text-dark">Suspended</span>
                                            @else
                                                <span class="badge bg-light text-dark">Unknown</span>
                                            @endif
                                        </td>

                                        {{-- ✅ Actions --}}
                                        <td class="text-center">
                                            <div class="btn-group btn-group-sm" role="group">

                                                {{-- 🔍 View --}}
                                                <a href="{{ route('students.show', $student->id) }}" 
                                                   class="btn btn-info" title="View">
                                                    <i class="fas fa-eye"></i>
                                                </a>

                                                {{-- ✏️ Edit --}}
                                                <a href="{{ route('students.edit', $student->id) }}" 
                                                   class="btn btn-warning" title="Edit">
                                                    <i class="fas fa-edit"></i>
                                                </a>

                                                {{-- 📚 Classes --}}
                                                @if($student->batch_id)
                                                    <a href="{{ route('students.classes', $student->id) }}" 
                                                       class="btn btn-primary" title="View Classes">
                                                        <i class="fas fa-chalkboard-teacher"></i>
                                                    </a>
                                                @else
                                                    <button class="btn btn-outline-secondary" title="No Batch" disabled>
                                                        <i class="fas fa-ban"></i>
                                                    </button>
                                                @endif

                                                {{-- 🗑️ Delete --}}
                                                <form action="{{ route('students.destroy', $student->id) }}" 
                                                      method="POST" class="d-inline">
                                                    @csrf
                                                    @method('DELETE')
                                                    <button type="submit" class="btn btn-danger" 
                                                            onclick="return confirm('Are you sure you want to delete this student?')" 
                                                            title="Delete">
                                                        <i class="fas fa-trash"></i>
                                                    </button>
                                                </form>
                                            </div>
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                        <td colspan="10" class="text-center text-muted">No students found.</td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>

                    {{-- ✅ Pagination --}}
                    <div class="d-flex justify-content-between align-items-center mt-3">
                        <small class="text-muted">
                            Showing {{ $students->firstItem() }} to {{ $students->lastItem() }} of {{ $students->total() }} entries
                        </small>
                        <div>
                            {{ $students->links() }}
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection