@extends('layouts.applicant.applicant')

@section('title', 'D14 - Establishment of New Lab')

@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">D14 - Establishment of New Lab</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">Establishment of New Lab</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
        $labEstablishments = $application->labEstablishments()->orderBy('serial_no')->get();
        $totalCreditPoints = $labEstablishments->sum('credit_points');
        $evaluationPoints = min($totalCreditPoints, 4); // Max 4 for evaluation
        $totalLabs = $labEstablishments->count();
    @endphp

    <!-- No Lab Setup Option -->
    <div class="card shadow mb-4">
        <div class="card-header py-3">
            <h6 class="m-0 font-weight-bold text-warning">
                <i class="fas fa-exclamation-triangle me-2"></i>No Lab Setup Declaration
            </h6>
        </div>
        <div class="card-body">
            <div class="form-check">
                <input class="form-check-input" type="checkbox" id="no_lab_setup" 
                       {{ $application->no_lab_setup ? 'checked' : '' }}
                       @if(!$application->isEditable()) disabled @endif
                       onchange="toggleNoLabSetup()">
                <label class="form-check-label fw-bold" for="no_lab_setup">
                    I have Not Setup Any Lab
                </label>
                <div class="form-text">
                    Check this box if you have not established any new laboratory.
                    This step is non-mandatory to fill.
                </div>
            </div>
        </div>
    </div>

    @if(!$application->no_lab_setup)
    <!-- Credit Points Summary -->
    <div class="row mb-4">
        <div class="col-md-6">
            <div class="card border-primary">
                <div class="card-body text-center">
                    <div class="h4 text-primary">{{ number_format($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 4)</div>
                </div>
            </div>
        </div>
    </div>

    <!-- Lab Statistics -->
    <div class="row mb-4">
        <div class="col-md-12">
            <div class="card border-info">
                <div class="card-body text-center">
                    <div class="h5 text-info">{{ $totalLabs }}</div>
                    <div class="small text-muted">Total Labs Established</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 Lab:</strong> 4 Points
            </div>
            <div class="col-md-6">
                <strong>Total Labs:</strong> {{ $totalLabs }}
            </div>
        </div>
        <hr>
        <div class="alert alert-warning mb-0">
            <strong>Important:</strong> 
            <ul class="mb-0">
                <li>Maximum 4 credit points can be used for further calculation</li>
                <li>If sum of credit points is more than 4, only 4 will be considered for evaluation</li>
                <li>Only new laboratory establishments should be included</li>
                <li>This step is non-mandatory to fill</li>
                <li>Upload certificates or proof documents for verification</li>
            </ul>
        </div>
    </div>

    <!-- Lab Establishment Section -->
    <div class="card shadow mb-4" id="labEstablishmentSection">
        <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-flask me-2"></i>Lab Establishment Details
                </h6>
                @if($application->isEditable())
                <button type="button" class="btn btn-primary btn-sm" data-bs-toggle="modal" data-bs-target="#addLabEstablishmentModal">
                    <i class="fas fa-plus me-1"></i>Add Lab
                </button>
                @endif
            </div>
        </div>
        <div class="card-body">
            @if($labEstablishments->count() > 0)
                <div class="table-responsive">
                    <table class="table table-bordered">
                        <thead class="table-light">
                            <tr>
                                <th>Sr. No</th>
                                <th>Lab Name</th>
                                <th>Organization</th>
                                <th>Department</th>
                                <th>Year of Establishment</th>
                                <th>Credit Points</th>
                                <th>Proof Document</th>
                                @if($application->isEditable())
                                <th>Actions</th>
                                @endif
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($labEstablishments as $lab)
                            <tr>
                                <td>{{ $lab->serial_no }}</td>
                                <td class="fw-bold">{{ $lab->lab_name }}</td>
                                <td>{{ $lab->organization }}</td>
                                <td>{{ $lab->department }}</td>
                                <td>
                                    <span class="badge badge-info">
                                        {{ $lab->year_of_establishment }}
                                        <small class="d-block">({{ $lab->lab_age }} years ago)</small>
                                    </span>
                                </td>
                                <td class="fw-bold text-primary">{{ number_format($lab->credit_points, 2) }}</td>
                                <td>
                                    @if($lab->hasDocument())
                                        <a href="{{ route('applicant.lab-establishments.download-document', [$application, $lab]) }}" 
                                           class="btn btn-sm btn-outline-primary" title="Download Certificate">
                                            <i class="fas fa-download"></i>
                                        </a>
                                    @else
                                        <span class="text-danger">No Document</span>
                                    @endif
                                </td>
                                @if($application->isEditable())
                                <td>
                                    <div class="btn-group" role="group">
                                        <button type="button" class="btn btn-sm btn-outline-primary" 
                                                onclick="editLabEstablishment({{ $lab->id }})" title="Edit">
                                            <i class="fas fa-edit"></i>
                                        </button>
                                        <button type="button" class="btn btn-sm btn-outline-danger" 
                                                onclick="deleteLabEstablishment({{ $lab->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">Lab Summary</h6>
                                    <p class="mb-1"><strong>Total Labs:</strong> {{ $totalLabs }}</p>
                                    <p class="mb-0"><strong>Total Credit Points:</strong> {{ number_format($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>Evaluation Points:</strong> {{ number_format($evaluationPoints, 2) }} / 4</p>
                                    @if($totalCreditPoints > 4)
                                        <p class="mb-0 text-warning"><strong>Note:</strong> Total exceeds 4, capped at 4 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-flask fa-4x text-muted mb-3"></i>
                    <h5 class="text-muted">No Lab Establishments Added</h5>
                    <p class="text-muted">Add your new laboratory establishments to earn credit points.</p>
                    @if($application->isEditable())
                        <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addLabEstablishmentModal">
                            <i class="fas fa-plus me-2"></i>Add First Lab
                        </button>
                    @endif
                </div>
            @endif
        </div>
    </div>
    @endif

    <!-- 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 Lab Establishment Modal -->
@if($application->isEditable())
<div class="modal fade" id="addLabEstablishmentModal" tabindex="-1" aria-labelledby="addLabEstablishmentModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-xl">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="addLabEstablishmentModalLabel">Add Lab Establishment</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="labEstablishmentForm" method="POST" enctype="multipart/form-data">
                @csrf
                <div class="modal-body">
                    <input type="hidden" id="lab_establishment_id" name="lab_establishment_id">
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="lab_name" class="form-label">Lab Name <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" id="lab_name" name="lab_name" required>
                                <small class="text-muted">Name of the laboratory established</small>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="organization" class="form-label">Organization <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" id="organization" name="organization" required>
                                <small class="text-muted">Name of the institution/organization</small>
                            </div>
                        </div>
                    </div>
                    
                    <div class="row">
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="department" class="form-label">Department <span class="text-danger">*</span></label>
                                <select class="form-select" id="department" name="department" required>
                                    <option value="">Select Department</option>
                                    <option value="Computer Science & Engineering">Computer Science & Engineering</option>
                                    <option value="Electronics & Communication Engineering">Electronics & Communication Engineering</option>
                                    <option value="Electrical Engineering">Electrical Engineering</option>
                                    <option value="Mechanical Engineering">Mechanical Engineering</option>
                                    <option value="Civil Engineering">Civil Engineering</option>
                                    <option value="Chemical Engineering">Chemical Engineering</option>
                                    <option value="Information Technology">Information Technology</option>
                                    <option value="Physics">Physics</option>
                                    <option value="Chemistry">Chemistry</option>
                                    <option value="Mathematics">Mathematics</option>
                                    <option value="Biology">Biology</option>
                                    <option value="Biotechnology">Biotechnology</option>
                                    <option value="Environmental Science">Environmental Science</option>
                                    <option value="Management Studies">Management Studies</option>
                                    <option value="Other Department">Other Department</option>
                                </select>
                                <small class="text-muted">Department where the lab was established</small>
                            </div>
                        </div>
                        <div class="col-md-6">
                            <div class="mb-3">
                                <label for="year_of_establishment" class="form-label">Year of Establishment <span class="text-danger">*</span></label>
                                <input type="number" class="form-control" id="year_of_establishment" name="year_of_establishment" 
                                       min="1950" max="{{ date('Y') }}" required onchange="calculateCreditPoints()">
                                <small class="text-muted">Year when the lab was established</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">
                                    4 credit points per lab
                                </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 Lab</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endif

<script>
function toggleNoLabSetup() {
    const checkbox = document.getElementById('no_lab_setup');
    const labEstablishmentSection = document.getElementById('labEstablishmentSection');
    
    if (checkbox.checked) {
        labEstablishmentSection.style.display = 'none';
        // Update application
        updateNoLabSetupStatus(true);
    } else {
        labEstablishmentSection.style.display = 'block';
        updateNoLabSetupStatus(false);
    }
}

function updateNoLabSetupStatus(noLabSetup) {
    fetch(`{{ route("applicant.applications.update-no-lab-setup", $application) }}`, {
        method: 'POST',
        headers: {
            'X-CSRF-TOKEN': '{{ csrf_token() }}',
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({
            no_lab_setup: noLabSetup
        })
    })
    .then(response => response.json())
    .then(data => {
        if (!data.success) {
            console.error('Error updating no lab setup status');
        }
    })
    .catch(error => {
        console.error('Error:', error);
    });
}

function calculateCreditPoints() {
    const year = parseInt(document.getElementById('year_of_establishment').value) || 0;
    const creditPoints = year ? 4 : 0; // Always 4 points per lab
    
    document.getElementById('credit_points_display').value = creditPoints;
    
    const infoElement = document.getElementById('credit_points_info');
    
    if (year) {
        const currentYear = new Date().getFullYear();
        const age = currentYear - year;
        infoElement.innerHTML = `4 credit points per lab (established ${age} years ago)`;
        infoElement.className = 'text-success';
    } else {
        infoElement.innerHTML = '4 credit points per lab';
        infoElement.className = 'text-muted';
    }
}

function editLabEstablishment(labId) {
    // Fetch lab data and populate modal
    fetch(`{{ route("applicant.lab-establishments.show", [$application, "LAB_ID"]) }}`.replace('LAB_ID', labId))
        .then(response => response.json())
        .then(data => {
            document.getElementById('lab_establishment_id').value = data.id;
            document.getElementById('lab_name').value = data.lab_name;
            document.getElementById('organization').value = data.organization;
            document.getElementById('department').value = data.department;
            document.getElementById('year_of_establishment').value = data.year_of_establishment;
            
            calculateCreditPoints();
            
            document.getElementById('addLabEstablishmentModalLabel').textContent = 'Edit Lab Establishment';
            document.getElementById('labEstablishmentForm').action = 
                `{{ route("applicant.lab-establishments.update", [$application, "LAB_ID"]) }}`.replace('LAB_ID', labId);
            
            // Show modal
            new bootstrap.Modal(document.getElementById('addLabEstablishmentModal')).show();
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error loading lab data');
        });
}

function deleteLabEstablishment(labId) {
    if (confirm('Are you sure you want to delete this lab establishment?')) {
        fetch(`{{ route("applicant.lab-establishments.destroy", [$application, "LAB_ID"]) }}`.replace('LAB_ID', labId), {
            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 lab establishment');
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error deleting lab establishment');
        });
    }
}

// Reset modal when opening for new lab
document.getElementById('addLabEstablishmentModal').addEventListener('show.bs.modal', function (event) {
    if (!event.relatedTarget || !event.relatedTarget.onclick) {
        // Reset form for new lab
        document.getElementById('labEstablishmentForm').reset();
        document.getElementById('lab_establishment_id').value = '';
        document.getElementById('addLabEstablishmentModalLabel').textContent = 'Add Lab Establishment';
        document.getElementById('labEstablishmentForm').action = '{{ route("applicant.lab-establishments.store", $application) }}';
        document.getElementById('credit_points_display').value = '';
        document.getElementById('credit_points_info').innerHTML = '4 credit points per lab';
        document.getElementById('credit_points_info').className = 'text-muted';
    }
});

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

// Initialize page state
document.addEventListener('DOMContentLoaded', function() {
    toggleNoLabSetup();
});
</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;
}

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

.alert {
    border: none;
    border-radius: 0.5rem;
}

.form-check-input:checked {
    background-color: #ffc107;
    border-color: #ffc107;
}
</style>
@endsection