@extends('layouts.applicant.applicant')

@section('title', 'D12 - National/International Conferences')

@section('breadcrumbs')
    <li class="breadcrumb-item"><a href="{{ route('applicant.applications.index') }}">My Applications</a></li>
    <li class="breadcrumb-item"><a href="{{ route('applicant.applications.show', $application) }}">{{ $application->application_number }}</a></li>
    <li class="breadcrumb-item active">D12 - National/International Conferences</li>
@endsection

@section('content')
<div class="container-fluid">
    <!-- Page Header -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-0 text-gray-800">National/International Conferences (National/International Conferences organized as Chairman/Secretary.)</h1>
            <p class="text-muted">Application: {{ $application->application_number }}</p>
        </div>
        <div>
            @php
                $previousStep = $currentStep->getPreviousStep();
            @endphp
            @if($previousStep)
                <a href="{{ route('applicant.applications.step', [$application, $previousStep->slug]) }}" class="btn btn-outline-secondary">
                    <i class="fas fa-arrow-left me-2"></i>Previous Step
                </a>
            @endif
        </div>
    </div>

    <!-- Dynamic Progress Indicator -->
    @include('applicant.applications.partials.progress-indicator')

    @php
        $conferences = $application->conferences()->orderBy('serial_no')->get();
        $totalCreditPoints = $conferences->sum('credit_points');
        $evaluationPoints = min($totalCreditPoints, 6); // Max 6 for evaluation
        $totalConferences = $conferences->count();
        $nationalConferences = $conferences->where('conference_type', 'national')->count();
        $internationalConferences = $conferences->where('conference_type', 'international')->count();
        $chairmanPositions = $conferences->where('position_held', 'chairman')->count();
        $secretaryPositions = $conferences->where('position_held', 'secretary')->count();
    @endphp

    <!-- Credit Points Summary -->
    <div class="row mb-4">
        <div class="col-md-6">
            <div class="card border-primary">
                <div class="card-body text-center">
                    <div class="h4 text-primary">{{ number_format($totalCreditPoints, 2) }}</div>
                    <div class="small text-muted">Total Credit Points</div>
                </div>
            </div>
        </div>
        <div class="col-md-6">
            <div class="card border-success">
                <div class="card-body text-center">
                    <div class="h4 text-success">{{ number_format($evaluationPoints, 2) }}</div>
                    <div class="small text-muted">Maximum Credit Points (Max 6)</div>
                </div>
            </div>
        </div>
    </div>

    <!-- Conference Statistics -->
    <div class="row mb-4">
        <div class="col-md-3">
            <div class="card border-info">
                <div class="card-body text-center">
                    <div class="h5 text-info">{{ $nationalConferences }}</div>
                    <div class="small text-muted">National</div>
                </div>
            </div>
        </div>
        <div class="col-md-3">
            <div class="card border-warning">
                <div class="card-body text-center">
                    <div class="h5 text-warning">{{ $internationalConferences }}</div>
                    <div class="small text-muted">International</div>
                </div>
            </div>
        </div>
        <div class="col-md-3">
            <div class="card border-secondary">
                <div class="card-body text-center">
                    <div class="h5 text-secondary">{{ $chairmanPositions }}</div>
                    <div class="small text-muted">Chairman</div>
                </div>
            </div>
        </div>
        <div class="col-md-3">
            <div class="card border-dark">
                <div class="card-body text-center">
                    <div class="h5 text-dark">{{ $secretaryPositions }}</div>
                    <div class="small text-muted">Secretary</div>
                </div>
            </div>
        </div>
    </div>

    <!-- Credit Points Calculation Info -->
    <div class="alert alert-info mb-4">
        <h6 class="alert-heading"><i class="fas fa-info-circle me-2"></i>Credit Points Calculation</h6>
        <div class="row">
            <div class="col-md-6">
                <strong>Credit Points per Conference:</strong> 3 Points
            </div>
            <div class="col-md-6">
                <strong>Total Conferences:</strong> {{ $totalConferences }}
            </div>
        </div>
        <hr>
        <div class="alert alert-warning mb-0">
            <strong>Important:</strong> 
            <ul class="mb-0">
                <li>Maximum 6 credit points can be used for further calculation</li>
                <li>If sum of credit points is more than 6, only 6 will be considered for evaluation</li>
                <li>Must be organized as Chairman or Secretary</li>
                <li>Include both National and International conferences</li>
                <li>Upload certificates or proof documents for verification</li>
            </ul>
        </div>
    </div>

    <!-- Conferences Section -->
    <div class="card shadow mb-4">
        <div class="card-header py-3">
            <div class="d-flex justify-content-between align-items-center">
                <h6 class="m-0 font-weight-bold text-primary">
                    <i class="fas fa-users me-2"></i>National/International Conferences
                </h6>
                @if($application->isEditable())
                <button type="button" class="btn btn-primary btn-sm" data-bs-toggle="modal" data-bs-target="#addConferenceModal">
                    <i class="fas fa-plus me-1"></i>Add Conference
                </button>
                @endif
            </div>
        </div>
        <div class="card-body">
            @if($conferences->count() > 0)
                <div class="table-responsive">
                    <table class="table table-bordered">
                        <thead class="table-light">
                            <tr>
                                <th>Sr. No</th>
                                <th>Conference Title</th>
                                <th>National/International</th>
                                <th>Duration (From Date/To Date)</th>
                                <th>Position Held</th>
                                <th>Credit Points</th>
                                <th>Proof Document</th>
                                @if($application->isEditable())
                                <th>Actions</th>
                                @endif
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($conferences as $conference)
                            <tr>
                                <td>{{ $conference->serial_no }}</td>
                                <td class="fw-bold">{{ $conference->conference_title }}</td>
                                <td>
                                    <span class="badge {{ $conference->conference_type == 'international' ? 'badge-warning' : 'badge-info' }}">
                                        {{ $conference->conference_type_display }}
                                    </span>
                                </td>
                                <td>{{ $conference->duration }}</td>
                                <td>
                                    <span class="badge {{ $conference->position_held == 'chairman' ? 'badge-secondary' : 'badge-dark' }}">
                                        {{ $conference->position_held_display }}
                                    </span>
                                </td>
                                <td class="fw-bold text-primary">{{ number_format($conference->credit_points, 2) }}</td>
                                <td>
                                    @if($conference->hasDocument())
                                        <a href="{{ route('applicant.conferences.download-document', [$application, $conference]) }}" 
                                           class="btn btn-sm btn-outline-primary" title="Download Certificate">
                                            <i class="fas fa-download"></i>
                                        </a>
                                    @else
                                        <span class="text-danger">No Document</span>
                                    @endif
                                </td>
                                @if($application->isEditable())
                                <td>
                                    <div class="btn-group" role="group">
                                        <button type="button" class="btn btn-sm btn-outline-primary" 
                                                onclick="editConference({{ $conference->id }})" title="Edit">
                                            <i class="fas fa-edit"></i>
                                        </button>
                                        <button type="button" class="btn btn-sm btn-outline-danger" 
                                                onclick="deleteConference({{ $conference->id }})" title="Delete">
                                            <i class="fas fa-trash"></i>
                                        </button>
                                    </div>
                                </td>
                                @endif
                            </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>
                
                <!-- Summary -->
                <div class="mt-4">
                    <div class="row">
                        <div class="col-md-6">
                            <div class="card border-info">
                                <div class="card-body">
                                    <h6 class="card-title text-info">Conference Summary</h6>
                                    <p class="mb-1"><strong>Total Conferences:</strong> {{ $totalConferences }}</p>
                                    <p class="mb-1"><strong>National:</strong> {{ $nationalConferences }}</p>
                                    <p class="mb-1"><strong>International:</strong> {{ $internationalConferences }}</p>
                                    <p class="mb-0"><strong>Total Credit Points:</strong> {{ number_format($totalCreditPoints, 2) }}</p>
                                </div>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="card border-secondary">
                                <div class="card-body">
                                    <h6 class="card-title text-secondary">Position Summary</h6>
                                    <p class="mb-1"><strong>Chairman Positions:</strong> {{ $chairmanPositions }}</p>
                                    <p class="mb-1"><strong>Secretary Positions:</strong> {{ $secretaryPositions }}</p>
                                    <p class="mb-1"><strong>Evaluation Points:</strong> {{ number_format($evaluationPoints, 2) }} / 6</p>
                                    @if($totalCreditPoints > 6)
                                        <p class="mb-0 text-warning"><strong>Note:</strong> Total exceeds 6, capped at 6 for evaluation</p>
                                    @else
                                        <p class="mb-0 text-success"><strong>Status:</strong> Within evaluation limit</p>
                                    @endif
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            @else
                <div class="text-center py-5">
                    <i class="fas fa-users fa-4x text-muted mb-3"></i>
                    <h5 class="text-muted">No Conferences Added</h5>
                    <p class="text-muted">Add your national/international conferences organized as Chairman/Secretary to earn credit points.</p>
                    @if($application->isEditable())
                        <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addConferenceModal">
                            <i class="fas fa-plus me-2"></i>Add First Conference
                        </button>
                    @endif
                </div>
            @endif
        </div>
    </div>

    <!-- Navigation -->
    <div class="d-flex justify-content-between mt-4">
        <div>
            @if($previousStep)
                <a href="{{ route('applicant.applications.step', [$application, $previousStep->slug]) }}" class="btn btn-secondary">
                    <i class="fas fa-arrow-left me-1"></i>Previous: {{ $previousStep->name }}
                </a>
            @endif
        </div>
        
        <div>
            @php
                $nextStep = $currentStep->getNextStep();
            @endphp
            @if($nextStep)
                <a href="{{ route('applicant.applications.step', [$application, $nextStep->slug]) }}" class="btn btn-primary">
                    Next: {{ $nextStep->name }} <i class="fas fa-arrow-right ms-1"></i>
                </a>
            @endif
        </div>
    </div>
</div>

<!-- Add/Edit Conference Modal -->
@if($application->isEditable())
<div class="modal fade" id="addConferenceModal" tabindex="-1" aria-labelledby="addConferenceModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-xl">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="addConferenceModalLabel">Add Conference</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="conferenceForm" method="POST" enctype="multipart/form-data">
                @csrf
                <div class="modal-body">
                    <input type="hidden" id="conference_id" name="conference_id">
                    
                    <div class="row">
                        <div class="col-md-12">
                            <div class="mb-3">
                                <label for="conference_title" class="form-label">Conference Title <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" id="conference_title" name="conference_title" required>
                                <small class="text-muted">Full title of the conference organized</small>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="conference_type" class="form-label">Conference Type <span class="text-danger">*</span></label>
                                <select class="form-select" id="conference_type" name="conference_type" required>
                                    <option value="">Select Type</option>
                                    <option value="national">National</option>
                                    <option value="international">International</option>
                                </select>
                                <small class="text-muted">Select whether it's a national or international conference</small>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="position_held" class="form-label">Position Held <span class="text-danger">*</span></label>
                                <select class="form-select" id="position_held" name="position_held" required onchange="calculateCreditPoints()">
                                    <option value="">Select Position</option>
                                    <option value="chairman">Chairman</option>
                                    <option value="secretary">Secretary</option>
                                </select>
                                <small class="text-muted">Your role in organizing the conference</small>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="from_date" class="form-label">From Date <span class="text-danger">*</span></label>
                                <input type="date" class="form-control" id="from_date" name="from_date" required>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="to_date" class="form-label">To Date <span class="text-danger">*</span></label>
                                <input type="date" class="form-control" id="to_date" name="to_date" required>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label class="form-label">Credit Points (Auto-calculated)</label>
                                <div class="input-group">
                                    <input type="number" class="form-control" id="credit_points_display" readonly>
                                    <span class="input-group-text">
                                        <i class="fas fa-calculator"></i>
                                    </span>
                                </div>
                                <small class="text-muted" id="credit_points_info">
                                    3 credit points per conference
                                </small>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="proof_document" class="form-label">Upload Proof (Certificate, etc.) <span class="text-danger">*</span></label>
                                <input type="file" class="form-control" id="proof_document" name="proof_document" accept=".pdf">
                                <small class="text-muted">Upload certificate or proof document (PDF only, max 5MB)</small>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Save Conference</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endif

<script>
function calculateCreditPoints() {
    const position = document.getElementById('position_held').value;
    const creditPoints = position ? 3 : 0; // Always 3 points per conference
    
    document.getElementById('credit_points_display').value = creditPoints;
    
    const infoElement = document.getElementById('credit_points_info');
    
    if (position) {
        infoElement.innerHTML = `3 credit points per conference (${position})`;
        infoElement.className = 'text-success';
    } else {
        infoElement.innerHTML = '3 credit points per conference';
        infoElement.className = 'text-muted';
    }
}

function editConference(conferenceId) {
    // Fetch conference data and populate modal
    fetch(`{{ route("applicant.conferences.show", [$application, "CONFERENCE_ID"]) }}`.replace('CONFERENCE_ID', conferenceId))
        .then(response => response.json())
        .then(data => {
            document.getElementById('conference_id').value = data.id;
            document.getElementById('conference_title').value = data.conference_title;
            document.getElementById('conference_type').value = data.conference_type;
            document.getElementById('position_held').value = data.position_held;
            document.getElementById('from_date').value = data.from_date;
            document.getElementById('to_date').value = data.to_date;
            
            calculateCreditPoints();
            
            document.getElementById('addConferenceModalLabel').textContent = 'Edit Conference';
            document.getElementById('conferenceForm').action = 
                `{{ route("applicant.conferences.update", [$application, "CONFERENCE_ID"]) }}`.replace('CONFERENCE_ID', conferenceId);
            
            // Show modal
            new bootstrap.Modal(document.getElementById('addConferenceModal')).show();
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error loading conference data');
        });
}

function deleteConference(conferenceId) {
    if (confirm('Are you sure you want to delete this conference?')) {
        fetch(`{{ route("applicant.conferences.destroy", [$application, "CONFERENCE_ID"]) }}`.replace('CONFERENCE_ID', conferenceId), {
            method: 'DELETE',
            headers: {
                'X-CSRF-TOKEN': '{{ csrf_token() }}',
                'Content-Type': 'application/json',
            },
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                location.reload();
            } else {
                alert('Error deleting conference');
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error deleting conference');
        });
    }
}

// Reset modal when opening for new conference
document.getElementById('addConferenceModal').addEventListener('show.bs.modal', function (event) {
    if (!event.relatedTarget || !event.relatedTarget.onclick) {
        // Reset form for new conference
        document.getElementById('conferenceForm').reset();
        document.getElementById('conference_id').value = '';
        document.getElementById('addConferenceModalLabel').textContent = 'Add Conference';
        document.getElementById('conferenceForm').action = '{{ route("applicant.conferences.store", $application) }}';
        document.getElementById('credit_points_display').value = '';
        document.getElementById('credit_points_info').innerHTML = '3 credit points per conference';
        document.getElementById('credit_points_info').className = 'text-muted';
    }
});

// Handle form submission
document.getElementById('conferenceForm').addEventListener('submit', function(e) {
    e.preventDefault();
    
    const formData = new FormData(this);
    const isEdit = document.getElementById('conference_id').value !== '';
    
    if (isEdit) {
        formData.append('_method', 'PUT');
    }
    
    fetch(this.action, {
        method: 'POST',
        body: formData,
        headers: {
            'X-CSRF-TOKEN': '{{ csrf_token() }}',
        },
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            location.reload();
        } else {
            alert('Error saving conference: ' + (data.message || 'Unknown error'));
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Error saving conference');
    });
});

// Initialize credit points display
calculateCreditPoints();
</script>

<style>
.card {
    border: none;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

.card-header {
    background-color: #f8f9fc;
    border-bottom: 1px solid #e3e6f0;
}

.table th {
    background-color: #f8f9fc;
    border-color: #e3e6f0;
    font-weight: 600;
    color: #5a5c69;
    font-size: 0.875rem;
}

.table td {
    vertical-align: middle;
    font-size: 0.875rem;
}

.btn-group .btn {
    margin-right: 2px;
}

.badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
}

.badge-info {
    background-color: #17a2b8;
    color: white;
}

.badge-warning {
    background-color: #ffc107;
    color: #212529;
}

.badge-secondary {
    background-color: #6c757d;
    color: white;
}

.badge-dark {
    background-color: #343a40;
    color: white;
}

.modal-content {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.alert {
    border: none;
    border-radius: 0.5rem;
}
</style>
@endsection