@extends('layouts.app')

@section('content')
<div class="row">
    <div class="col-12">
        <div class="card-custom">
            <div class="card-header-custom">
                <h3 class="mb-0">
                    <i class="fas fa-search mr-2"></i>
                    Search Student Fee Records
                </h3>
            </div>
            
            <div class="card-body-custom">
                <div class="row">
                    <div class="col-md-8">
                        <div class="form-group">
                            <label for="studentSearch" class="font-weight-bold">
                                <i class="fas fa-user-graduate mr-2"></i>Select Student
                            </label>
                            <select id="studentSearch" class="form-control form-control-custom select2" style="width: 100%;">
                                <option value="">-- Loading students... --</option>
                            </select>
                        </div>
                    </div>
                    <div class="col-md-4 d-flex align-items-end">
                        <button id="searchBtn" class="btn btn-custom btn-primary-custom btn-block" disabled>
                            <i class="fas fa-search mr-2"></i>Search Records
                        </button>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<div id="loadingSpinner" class="text-center my-4" style="display: none;">
    <div class="card-custom">
        <div class="card-body-custom text-center">
            <div class="loading-spinner mb-3"></div>
            <h5>Loading Fee Records...</h5>
            <p class="text-muted">Please wait while we fetch the data</p>
        </div>
    </div>
</div>

<div id="resultsContainer" class="mt-4" style="display: none;">
    <div class="card-custom">
        <div class="card-header-custom">
            <div class="d-flex justify-content-between align-items-center">
                <h3 class="mb-0">
                    <i class="fas fa-file-invoice-dollar mr-2"></i>Fee Records
                </h3>
                <div id="studentInfo" class="text-right">
                    <!-- Student info will be populated here -->
                </div>
            </div>
        </div>
        <div class="card-body-custom">
            <div class="table-responsive">
                <table class="table table-custom" id="feeRecordsTable">
                    <thead>
                        <tr>
                            <th><i class="fas fa-tag mr-1"></i>Fee Type</th>
                            <th><i class="fas fa-dollar-sign mr-1"></i>Amount</th>
                            <th><i class="fas fa-check-circle mr-1"></i>Status</th>
                            <th><i class="fas fa-file-alt mr-1"></i>Challan Status</th>
                            <th><i class="fas fa-calendar mr-1"></i>Start Date</th>
                            <th><i class="fas fa-calendar mr-1"></i>End Date</th>
                            <th><i class="fas fa-cogs mr-1"></i>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        <!-- Results will be populated here by JavaScript -->
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>

<div id="noResults" class="alert alert-warning alert-custom mt-4" style="display: none;">
    <div class="text-center">
        <i class="fas fa-exclamation-circle fa-2x mb-3"></i>
        <h5>No Fee Records Found</h5>
        <p class="mb-0">No fee records found for the selected student.</p>
    </div>
</div>

@section('scripts')
<script>
$(document).ready(function() {
    // Initialize Select2
    $('#studentSearch').select2({
        placeholder: "Search by roll number or name...",
        allowClear: true,
        width: '100%'
    });

    // Store student data for later use
    let studentData = {};

    // Fetch student records via AJAX
    $.ajax({
        url: "{{ route('challans.getStudentRecords') }}",
        method: 'GET',
        success: function(response) {
            if (response.success && response.data.length > 0) {
                const select = $('#studentSearch');
                select.empty().append('<option value="">-- Select a student --</option>');
                
                response.data.forEach(function(student) {
                    select.append(new Option(
                        student.rollno + ' - ' + student.name, 
                        student.rollno,
                        false,
                        false
                    ));
                    // Store student data by rollno for later use
                    studentData[student.rollno] = student;
                });
                
                $('#searchBtn').prop('disabled', false);
            } else {
                $('#studentSearch').empty().append('<option value="">-- No students found --</option>');
                alert(response.message || 'No student records available');
            }
        },
        error: function(xhr) {
            console.error(xhr);
            $('#studentSearch').empty().append('<option value="">-- Error loading students --</option>');
            alert('Error loading student records. Please try again.');
        }
    });

    // Handle search button click
    $('#searchBtn').click(function() {
        const studentRollNo = $('#studentSearch').val();
        if (!studentRollNo) {
            alert('Please select a student first');
            return;
        }
        
        // Show loading spinner
        $('#loadingSpinner').show();
        $('#resultsContainer').hide();
        $('#noResults').hide();
        
        // Display student info
        const student = studentData[studentRollNo];
        if (student) {
            $('#studentInfo').html(`
                <div class="student-details">
                    <h5 class="mb-0">${student.name}</h5>
                    <p class="mb-0">Roll No: ${student.rollno}</p>
                </div>
            `);
        }
        
        $.ajax({
            url: "{{ route('challans.getFeeRecords') }}",
            method: 'POST',
            data: {
                student_id: studentRollNo,
                _token: "{{ csrf_token() }}"
            },
            success: function(response) {
                $('#loadingSpinner').hide();
                
                if (response.success && response.data && response.data.length > 0) {
                    const tbody = $('#feeRecordsTable tbody');
                    tbody.empty();
                    
                    response.data.forEach(function(record) {
                        const printBtn = record.challan_status === 'Issued' ? 
                            `<button class="btn btn-sm print-btn" data-record='${JSON.stringify(record)}' data-student='${JSON.stringify(student)}'>
                                <i class="fas fa-print mr-1"></i>Print
                            </button>` : '<span class="text-muted">No action</span>';
                            
                        tbody.append(`
                            <tr>
                                <td>${record.fee_type || 'N/A'}</td>
                                <td>${parseFloat(record.fee || 0).toFixed(2)}</td>
                                <td><span class="badge ${record.fee_status === 'Paid' ? 'badge-success' : 'badge-danger'} badge-custom">${record.fee_status || 'N/A'}</span></td>
                                <td><span class="badge ${record.challan_status === 'Issued' ? 'badge-info' : 'badge-warning'} badge-custom">${record.challan_status || 'N/A'}</span></td>
                                <td>${record.start_date || 'N/A'}</td>
                                <td>${record.end_date || 'N/A'}</td>
                                <td>${printBtn}</td>
                            </tr>
                        `);
                    });
                    
                    // Add click handler for print buttons
                    $('.print-btn').click(function() {
                        const record = $(this).data('record');
                        const student = $(this).data('student');
                        openPrintWindow(record, student);
                    });
                    
                    $('#resultsContainer').show();
                    $('#noResults').hide();
                } else {
                    $('#noResults').show();
                    $('#resultsContainer').hide();
                }
            },
            error: function(xhr) {
                $('#loadingSpinner').hide();
                alert('An error occurred while fetching records. Please try again.');
                console.error(xhr.responseText);
            }
        });
    });
    
    function openPrintWindow(record, student) {
        // Create a form to submit data to the print route
        const form = document.createElement('form');
        form.method = 'GET';
        form.action = "{{ route('challans.print') }}";
        form.target = '_blank';
        
        // Add student ID
        const studentIdInput = document.createElement('input');
        studentIdInput.type = 'hidden';
        studentIdInput.name = 'student_id';
        studentIdInput.value = student.rollno;
        form.appendChild(studentIdInput);
        
        // Add record data as JSON
        const recordInput = document.createElement('input');
        recordInput.type = 'hidden';
        recordInput.name = 'record_data';
        recordInput.value = JSON.stringify(record);
        form.appendChild(recordInput);
        
        // Add student data as JSON
        const studentInput = document.createElement('input');
        studentInput.type = 'hidden';
        studentInput.name = 'student_data';
        studentInput.value = JSON.stringify(student);
        form.appendChild(studentInput);
        
        document.body.appendChild(form);
        form.submit();
        document.body.removeChild(form);
    }
});
</script>
@endsection
@endsection