@extends('layouts.applicant.applicant')

@section('title', 'D11 - National Programs Coordinator')

@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">D11 - National Programs Coordinator</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 Programs Coordinator (For conducting National Programs like GIAN etc. as course coordinator)</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
        $nationalPrograms = $application->nationalPrograms()->orderBy('serial_no')->get();
        $totalCreditPoints = $nationalPrograms->sum('credit_points');
        $twoWeekCreditPoints = \App\Models\NationalProgram::getTwoWeekCreditPoints($application->id);
        $oneWeekCreditPoints = \App\Models\NationalProgram::getOneWeekCreditPoints($application->id);
        $twoWeekEvaluationPoints = \App\Models\NationalProgram::getTwoWeekEvaluationPoints($application->id);
        $oneWeekEvaluationPoints = \App\Models\NationalProgram::getOneWeekEvaluationPoints($application->id);
        $evaluationPoints = \App\Models\NationalProgram::getEvaluationPoints($application->id);
        $totalPrograms = $nationalPrograms->count();
        $totalDays = $nationalPrograms->sum('number_of_days');
        $twoWeekPrograms = $nationalPrograms->where('number_of_days', '>=', 14)->count();
        $oneWeekPrograms = $nationalPrograms->where('number_of_days', '>=', 7)->where('number_of_days', '<', 14)->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 class="small text-info mt-1">
                        Two-Week: {{ number_format($twoWeekEvaluationPoints, 2) }}/4 + One-Week: {{ number_format($oneWeekEvaluationPoints, 2) }}/2
                    </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>Two Weeks or More:</strong> 2 Credit Points per course
                <br><small class="text-muted">Maximum 4 points from all two-week courses</small>
            </div>
            <div class="col-md-6">
                <strong>One Week (7-13 days):</strong> 1 Credit Point per course
                <br><small class="text-muted">Maximum 2 points from all one-week courses</small>
            </div>
        </div>
        <div class="row mt-2">
            <div class="col-md-12">
                <strong>Current Status:</strong> 
                Two-Week Programs: {{ $twoWeekPrograms }} ({{ number_format($twoWeekCreditPoints, 2) }} points) | 
                One-Week Programs: {{ $oneWeekPrograms }} ({{ number_format($oneWeekCreditPoints, 2) }} points)
            </div>
        </div>
        <hr>
        <div class="alert alert-warning mb-0">
            <strong>Important:</strong> 
            <ul class="mb-0">
                <li>Maximum 6 credit points total (4 from two-week + 2 from one-week courses)</li>
                <li>Two-week courses (14+ days): 2 points each, max 4 points for evaluation</li>
                <li>One-week courses (7-13 days): 1 point each, max 2 points for evaluation</li>
                <li>Programs less than 7 days get no credit points</li>
                <li>Must be conducted as course coordinator</li>
                <li>Include national programs like GIAN, SWAYAM, NPTEL, etc.</li>
                <li>Upload certificates or proof documents for verification</li>
            </ul>
        </div>
    </div>

    <!-- National Programs 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-flag me-2"></i>National Programs Coordinator
                </h6>
                @if($application->isEditable())
                <button type="button" class="btn btn-primary btn-sm" data-bs-toggle="modal" data-bs-target="#addNationalProgramModal">
                    <i class="fas fa-plus me-1"></i>Add National Program
                </button>
                @endif
            </div>
        </div>
        <div class="card-body">
            @if($nationalPrograms->count() > 0)
                <div class="table-responsive">
                    <table class="table table-bordered">
                        <thead class="table-light">
                            <tr>
                                <th>Sr. No</th>
                                <th>Program Title</th>
                                <th>Duration (From Date/To Date)</th>
                                <th>Number of Days</th>
                                <th>Credit Points</th>
                                <th>Proof Document</th>
                                @if($application->isEditable())
                                <th>Actions</th>
                                @endif
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($nationalPrograms as $program)
                            <tr>
                                <td>{{ $program->serial_no }}</td>
                                <td class="fw-bold">{{ $program->program_title }}</td>
                                <td>{{ $program->duration }}</td>
                                <td>
                                    <span class="badge bg-info text-dark">
                                        {{ $program->number_of_days }} Day{{ $program->number_of_days > 1 ? 's' : '' }}
                                    </span>
                                </td>
                                <td class="fw-bold text-primary">{{ number_format($program->credit_points, 2) }}</td>
                                <td>
                                    @if($program->hasDocument())
                                        <a href="{{ route('applicant.national-programs.download-document', [$application, $program]) }}" 
                                           class="btn btn-sm btn-outline-primary" title="Download Certificate">
                                            <i class="fas fa-download"></i>
                                        </a>
                                    @else
                                        <span class="text-danger">No Document</span>
                                    @endif
                                </td>
                                @if($application->isEditable())
                                <td>
                                    <div class="btn-group" role="group">
                                        <button type="button" class="btn btn-sm btn-outline-primary" 
                                                onclick="editNationalProgram({{ $program->id }})" title="Edit">
                                            <i class="fas fa-edit"></i>
                                        </button>
                                        <button type="button" class="btn btn-sm btn-outline-danger" 
                                                onclick="deleteNationalProgram({{ $program->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">Summary</h6>
                                    <p class="mb-1"><strong>Total Programs:</strong> {{ $totalPrograms }}</p>
                                    <p class="mb-1"><strong>Two-Week Programs:</strong> {{ $twoWeekPrograms }} ({{ number_format($twoWeekCreditPoints, 2) }} points)</p>
                                    <p class="mb-1"><strong>One-Week Programs:</strong> {{ $oneWeekPrograms }} ({{ number_format($oneWeekCreditPoints, 2) }} points)</p>
                                    <p class="mb-1"><strong>Total Days:</strong> {{ $totalDays }}</p>
                                    <p class="mb-0"><strong>Total Credit Points:</strong> {{ number_format($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">Evaluation</h6>
                                    <p class="mb-1"><strong>Two-Week Evaluation:</strong> {{ number_format($twoWeekEvaluationPoints, 2) }} / 4</p>
                                    <p class="mb-1"><strong>One-Week Evaluation:</strong> {{ number_format($oneWeekEvaluationPoints, 2) }} / 2</p>
                                    <p class="mb-1"><strong>Total Evaluation:</strong> {{ number_format($evaluationPoints, 2) }} / 6</p>
                                    @if($evaluationPoints >= 6)
                                        <p class="mb-0 text-success"><strong>Status:</strong> Maximum evaluation points achieved</p>
                                    @elseif($twoWeekCreditPoints > 4 || $oneWeekCreditPoints > 2)
                                        <p class="mb-0 text-warning"><strong>Note:</strong> Some points capped for evaluation</p>
                                    @else
                                        <p class="mb-0 text-info"><strong>Status:</strong> Within evaluation limits</p>
                                    @endif
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            @else
                <div class="text-center py-5">
                    <i class="fas fa-flag fa-4x text-muted mb-3"></i>
                    <h5 class="text-muted">No National Programs Added</h5>
                    <p class="text-muted">Add your national programs like GIAN, SWAYAM, NPTEL as course coordinator to earn credit points.</p>
                    @if($application->isEditable())
                        <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addNationalProgramModal">
                            <i class="fas fa-plus me-2"></i>Add First Program
                        </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 National Program Modal -->
@if($application->isEditable())
<div class="modal fade" id="addNationalProgramModal" tabindex="-1" aria-labelledby="addNationalProgramModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-xl">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="addNationalProgramModalLabel">Add National Program</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="nationalProgramForm" method="POST" enctype="multipart/form-data">
                @csrf
                <div class="modal-body">
                    <input type="hidden" id="national_program_id" name="national_program_id">
                    
                    <div class="row">
                        <div class="col-md-12">
                            <div class="mb-3">
                                <label for="program_title" class="form-label">Program Title <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" id="program_title" name="program_title" 
                                       list="program_options" required 
                                       placeholder="Select from dropdown or type your own program title">
                                <datalist id="program_options">
                                    <option value="Global Initiative of Academic Networks (GIAN)">
                                    <option value="Study Webs of Active-Learning for Young Aspiring Minds (SWAYAM)">
                                    <option value="National Programme on Technology Enhanced Learning (NPTEL)">
                                    <option value="AICTE Training and Learning (ATAL) Academy">
                                    <option value="UGC National Programs">
                                    <option value="MHRD National Initiatives">
                                    <option value="Department of Science and Technology Programs">
                                    <option value="Council of Scientific and Industrial Research Programs">
                                    <option value="Indian Council of Social Science Research Programs">
                                    <option value="Other National Program">
                                </datalist>
                                <small class="text-muted">You can select from the dropdown or type your own program title if not listed</small>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-4">
                            <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 onchange="calculateDays()">
                            </div>
                        </div>
                        <div class="col-md-4">
                            <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 onchange="calculateDays()">
                            </div>
                        </div>
                        <div class="col-md-4">
                            <div class="mb-3">
                                <label for="number_of_days" class="form-label">Number of Days <span class="text-danger">*</span></label>
                                <input type="number" class="form-control" id="number_of_days" name="number_of_days" 
                                       min="1" required onchange="calculateCreditPoints()">
                                <small class="text-muted" id="days_info">Total duration of the program</small>
                            </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">
                                    2 credit points per course
                                </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 Program</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endif

<script>
function calculateDays() {
    const fromDate = document.getElementById('from_date').value;
    const toDate = document.getElementById('to_date').value;
    
    if (fromDate && toDate) {
        const from = new Date(fromDate);
        const to = new Date(toDate);
        const timeDiff = to.getTime() - from.getTime();
        const daysDiff = Math.ceil(timeDiff / (1000 * 3600 * 24)) + 1; // +1 to include both start and end days
        
        if (daysDiff > 0) {
            document.getElementById('number_of_days').value = daysDiff;
            calculateCreditPoints();
        }
    }
}

function calculateCreditPoints() {
    const days = parseInt(document.getElementById('number_of_days').value) || 0;
    let creditPoints = 0;
    let info = '';
    
    if (days >= 14) {
        creditPoints = 2;
        info = `Two weeks or more (${days} days): 2 credit points`;
    } else if (days >= 7) {
        creditPoints = 1;
        info = `One week (${days} days): 1 credit point`;
    } else if (days > 0) {
        creditPoints = 0;
        info = `Less than one week (${days} days): 0 credit points`;
    } else {
        info = 'Credit points calculated based on duration';
    }
    
    document.getElementById('credit_points_display').value = creditPoints;
    
    const infoElement = document.getElementById('credit_points_info');
    const daysInfoElement = document.getElementById('days_info');
    
    if (days > 0) {
        infoElement.innerHTML = info;
        infoElement.className = creditPoints > 0 ? 'text-success' : 'text-warning';
        daysInfoElement.innerHTML = `${days} days total duration`;
        daysInfoElement.className = 'text-info';
    } else {
        infoElement.innerHTML = 'Credit points calculated based on duration';
        infoElement.className = 'text-muted';
        daysInfoElement.innerHTML = 'Total duration of the program';
        daysInfoElement.className = 'text-muted';
    }
}

function editNationalProgram(programId) {
    // Fetch program data and populate modal
    fetch(`{{ route("applicant.national-programs.show", [$application, "PROGRAM_ID"]) }}`.replace('PROGRAM_ID', programId))
        .then(response => response.json())
        .then(data => {
            document.getElementById('national_program_id').value = data.id;
            document.getElementById('program_title').value = data.program_title;
            document.getElementById('from_date').value = data.from_date;
            document.getElementById('to_date').value = data.to_date;
            document.getElementById('number_of_days').value = data.number_of_days;
            
            calculateCreditPoints();
            
            document.getElementById('addNationalProgramModalLabel').textContent = 'Edit National Program';
            document.getElementById('nationalProgramForm').action = 
                `{{ route("applicant.national-programs.update", [$application, "PROGRAM_ID"]) }}`.replace('PROGRAM_ID', programId);
            
            // Show modal
            new bootstrap.Modal(document.getElementById('addNationalProgramModal')).show();
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error loading program data');
        });
}

function deleteNationalProgram(programId) {
    if (confirm('Are you sure you want to delete this national program?')) {
        fetch(`{{ route("applicant.national-programs.destroy", [$application, "PROGRAM_ID"]) }}`.replace('PROGRAM_ID', programId), {
            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 national program');
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error deleting national program');
        });
    }
}

// Reset modal when opening for new program
document.getElementById('addNationalProgramModal').addEventListener('show.bs.modal', function (event) {
    if (!event.relatedTarget || !event.relatedTarget.onclick) {
        // Reset form for new program
        document.getElementById('nationalProgramForm').reset();
        document.getElementById('national_program_id').value = '';
        document.getElementById('addNationalProgramModalLabel').textContent = 'Add National Program';
        document.getElementById('nationalProgramForm').action = '{{ route("applicant.national-programs.store", $application) }}';
        document.getElementById('credit_points_display').value = '';
        document.getElementById('credit_points_info').innerHTML = 'Credit points calculated based on duration';
        document.getElementById('credit_points_info').className = 'text-muted';
        document.getElementById('days_info').innerHTML = 'Total duration of the program';
        document.getElementById('days_info').className = 'text-muted';
    }
});

// Handle form submission
document.getElementById('nationalProgramForm').addEventListener('submit', function(e) {
    e.preventDefault();
    
    const formData = new FormData(this);
    const isEdit = document.getElementById('national_program_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 national program: ' + (data.message || 'Unknown error'));
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Error saving national program');
    });
});

// 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;
}



.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