@extends('layouts.backapp')

@section('styles')
<style>
    /* Loading overlay - Modified to only cover content section */
    #loading-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        z-index: 9999;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        backdrop-filter: blur(2px);
    }
    
    #loading-overlay .spinner-border {
        animation: spin 1s linear infinite;
    }
    
    @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }
    
    /* Make content section relative for absolute positioning of overlay */
    .kt-content {
        position: relative;
    }
    
    /* Button loading state */
    .btn.loading {
        opacity: 0.7;
        cursor: not-allowed;
    }
    
    .btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
    }
    
    /* Table styling */
    .table th {
        background-color: #f8f9fa;
        border-color: #dee2e6;
        font-weight: 600;
        color: #495057;
    }
    
    .table td {
        vertical-align: middle;
    }
    
    /* Mechanic column styling */
    .mechanic-column {
        background-color: #f8f9fa;
        min-width: 120px;
        text-align: center;
    }
    
    /* Form label styling */
    .form-label {
        font-weight: 600;
        color: #595d6e;
        margin-bottom: 8px;
        font-size: 13px;
        text-transform: none;
        letter-spacing: normal;
        display: block;
    }
    
    /* Filter buttons styling */
    .filter-buttons {
        display: flex;
        gap: 10px;
    }
    .filter-buttons .btn {
        white-space: nowrap;
    }
    
    /* Datepicker styling */
    .datepicker {
        width: 100% !important;
        max-width: 100%;
    }
    .datepicker-dropdown {
        width: auto !important;
        min-width: 250px;
        max-width: 300px;
    }
    /* Ensure input field follows parent width */
    input.datepicker {
        width: 100% !important;
        box-sizing: border-box;
    }
</style>
@endsection

@section('content')
  <div class="kt-content" id="kt_content">
    <div class="kt-portlet kt-portlet--mobile" id="kt_blockui_datatable">
      <div class="kt-portlet__head kt-portlet__head--lg">
        <div class="kt-portlet__head-label">
          <h3 class="kt-portlet__head-title">
            Laporan Teknisi
          </h3>
        </div>
        <div class="kt-portlet__head-toolbar">
          <div class="kt-portlet__head-actions">
            <button type="button" class="btn btn-bold btn-success btn--sm" id="btn-export-excel">
              Export
            </button>
          </div>
        </div>
      </div>
      <div class="kt-portlet__body">
                <!-- Filter Section -->
        <div class="row">
            <div class="col-md-3">
                <div class="form-group">
                    <label class="form-label">Tanggal Mulai</label>
                    <input type="text" class="form-control datepicker" id="filter-start-date" placeholder="Tanggal awal" value="{{ date('Y-m-d', strtotime('-30 days')) }}" readonly>
                </div>
            </div>
            <div class="col-md-3">
                <div class="form-group">
                    <label class="form-label">Tanggal Akhir</label>
                    <input type="text" class="form-control datepicker" id="filter-end-date" placeholder="Tanggal akhir" value="{{ date('Y-m-d') }}" readonly>
                </div>
            </div>
            <div class="col-md-6">
                <div class="form-group">
                    <label class="form-label">Filter Dealer</label>
                    <select class="form-control select2" id="filter-dealer">
                        <option value="">Semua Dealer</option>
                    </select>
                </div>
            </div>
        </div>
        <div class="row mb-3">
            <div class="col-md-12 filter-buttons">
                <button type="button" class="btn btn-primary btn-sm" id="btn-filter">
                    Cari
                </button>
                <button type="button" class="btn btn-secondary btn-sm" id="btn-reset">
                    Reset
                </button>
            </div>
        </div>
        <div class="row mb-3">
            <div class="col-md-12">
                <small class="form-text text-muted" id="default-dealer-info">Filter diset ke "Semua Dealer" untuk melihat data lengkap. Pilih dealer untuk memfilter data.</small>
            </div>
        </div>

        {{-- Table Section --}}
        <div class="table-responsive">
          <table class="table table-striped table-bordered" id="report-technician-table">
            <thead id="table-header">
              <tr>
                <th>No</th>
                <th>Nama Pekerjaan</th>
                <th>Kode Pekerjaan</th>
                <th>Kategori</th>
              </tr>
            </thead>
            <tbody>
            </tbody>
            <tfoot id="table-footer">
              <tr>
                <th colspan="4" class="text-center">Total</th>
              </tr>
            </tfoot>
          </table>
        </div>
      </div>
    </div>
  </div>
@endsection

@section('javascripts')
<script>
$(document).ready(function() {
    // Check if jQuery and DataTable are available
    if (typeof $ === 'undefined') {
        console.error('jQuery is not loaded');
        return;
    }
    
    if (typeof $.fn.DataTable === 'undefined') {
        console.error('DataTable is not loaded');
        // Show error message to user
        $('body').append('<div class="alert alert-danger m-3">DataTable library tidak dimuat. Silakan refresh halaman.</div>');
        return;
    }
    
    let dataTable;
    let mechanics = [];
    let isInitialized = false; // Flag to prevent double initialization
    
    // Loading overlay functions - Modified to only cover content section
    var showLoadingOverlay = function (message) {
        const $content = $('#kt_content');
        
        if ($("#loading-overlay").length === 0) {
            $content.append(`
                <div id="loading-overlay" style="
                    position: absolute;
                    top: 0;
                    left: 0;
                    width: 100%;
                    height: 100%;
                    background: rgba(0, 0, 0, 0.7);
                    z-index: 9999;
                    display: flex;
                    justify-content: center;
                    align-items: center;
                    flex-direction: column;
                ">
                    <div class="spinner-border text-light" role="status" style="width: 3rem; height: 3rem;">
                        <span class="sr-only">Loading...</span>
                    </div>
                    <div class="text-light mt-3" style="font-size: 1.1rem; font-weight: 500;">${message}</div>
                </div>
            `);
        } else {
            $("#loading-overlay").show();
            $("#loading-overlay .text-light:last").text(message);
        }
    };

    var hideLoadingOverlay = function () {
        $("#loading-overlay").hide();
    };
    
    // Initialize datepickers
    $('.datepicker').datepicker({
        format: 'yyyy-mm-dd',
        autoclose: true,
        todayHighlight: true
    });

    // Initialize Select2 for dealer dropdown
    function initializeSelect2() {
        console.log("Initializing Select2...");
        
        if (typeof $.fn.select2 !== 'undefined') {
            $('#filter-dealer').select2({
                placeholder: 'Semua Dealer',
                allowClear: true,
                width: '100%'
            });
        } else {
            console.warn('Select2 is not loaded, using default dropdown');
        }
    }

    // Store original button text
    $('#btn-filter').data('original-text', $('#btn-filter').html());
    
    // Load dealers first
    loadDealers();

    function loadDealers() {
        $.ajax({
            url: '{{ route("reports.technician.dealers") }}',
            type: 'GET',
            success: function(response) {
                console.log('Dealers response:', response);
                if (response.status === 'success') {
                    let options = '<option value="">Semua Dealer</option>';
                    response.data.forEach(function(dealer) {
                        options += `<option value="${dealer.id}">${dealer.name} (${dealer.dealer_code})</option>`;
                    });
                    $('#filter-dealer').html(options);
                    
                    console.log('Dealers loaded:', response.data.length);
                    
                    // Initialize Select2 after populating options
                    initializeSelect2();
                    
                    // Set default dealer if provided
                    if (response.default_dealer && response.data.length > 0) {
                        // Don't set default dealer - always show "Semua Dealer" on initial load
                        $('#default-dealer-info').text('Filter diset ke "Semua Dealer" untuk melihat data lengkap. Pilih dealer untuk memfilter data.');
                        
                        // Load initial data without dealer filter (show all dealers)
                        if (!isInitialized) {
                            console.log('Default dealer available but loading with "Semua Dealer" filter');
                            loadInitialMechanics();
                        }
                    } else if (response.default_dealer === null && response.data.length > 0) {
                        // Admin without default dealer - show all dealers without selection
                        $('#default-dealer-info').text('Filter diset ke "Semua Dealer" untuk melihat data lengkap. Pilih dealer untuk memfilter data.');
                        
                        // Load initial data without dealer filter
                        if (!isInitialized) {
                            console.log('Admin without default dealer, loading initial data');
                            loadInitialMechanics();
                        }
                    } else if (response.data.length > 0) {
                        $('#default-dealer-info').text('Filter diset ke "Semua Dealer" untuk melihat data lengkap. Pilih dealer untuk memfilter data.');
                        
                        // Load initial data without dealer filter
                        if (!isInitialized) {
                            console.log('No default dealer, loading initial data');
                            loadInitialMechanics();
                        }
                    } else {
                        // No dealers available
                        $('#default-dealer-info').text('Tidak ada dealer yang tersedia untuk Anda.');
                        hideLoadingOverlay();
                    }
                    
                    // Check if user has access to any dealers
                    if (response.data.length === 0) {
                        toastr.warning('Anda tidak memiliki akses ke dealer manapun. Silakan hubungi administrator.');
                        $('#default-dealer-info').text('Anda tidak memiliki akses ke dealer manapun.');
                        hideLoadingOverlay();
                        return;
                    }
                } else {
                    toastr.error('Gagal memuat data dealer');
                    hideLoadingOverlay();
                }
            },
            error: function() {
                toastr.error('Gagal memuat data dealer');
                hideLoadingOverlay();
            }
        });
    }

    function loadDataWithDealer(dealerId) {
        // Show loading overlay
        showLoadingOverlay("Memuat data laporan teknisi...");
        
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        console.log('Loading data with dealer:', dealerId, 'date range:', { startDate, endDate });
        
        // Get mechanics first, then initialize DataTable
        $.ajax({
            url: '{{ route("reports.technician.data") }}',
            type: 'GET',
            data: { dealer_id: dealerId, start_date: startDate, end_date: endDate },
            success: function(response) {
                console.log('Data response:', response);
                
                if (response.status === 'success' && Array.isArray(response.mechanics)) {
                    mechanics = response.mechanics;
                    console.log('Data loaded with dealer:', dealerId, 'mechanics:', mechanics.length);
                    
                    // Check if user has access to any data
                    if (response.data.length === 0 && response.mechanics.length === 0) {
                        console.log('No data available for dealer:', dealerId);
                        toastr.info('Tidak ada data yang tersedia untuk dealer yang dipilih. Silakan pilih dealer lain.');
                        $('#default-dealer-info').text('Tidak ada data yang tersedia untuk dealer yang dipilih.');
                        hideLoadingOverlay();
                        return;
                    }
                    
                    // Now initialize DataTable with mechanics ready
                    updateTableStructureWithMechanics();
                    isInitialized = true;
                } else {
                    console.warn('Invalid mechanics data, using fallback');
                    mechanics = [];
                    updateTableStructureWithMechanics();
                    isInitialized = true;
                }
            },
            error: function(xhr, status, error) {
                console.error('Error loading data with dealer:', error);
                console.error('Response:', xhr.responseText);
                
                toastr.error('Gagal memuat data untuk dealer yang dipilih. Silakan coba lagi.');
                hideLoadingOverlay();
                
                // Don't try fallback to avoid multiple notifications
                mechanics = [];
                updateTableStructureWithMechanics();
                isInitialized = true;
            }
        });
    }

    function loadInitialMechanics() {
        // Get initial filter values (empty dealer, default dates)
        let dealerId = '';
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        console.log('Loading initial mechanics without dealer filter, date range:', { startDate, endDate });
        
        // Show loading overlay
        showLoadingOverlay("Memuat data laporan teknisi...");
        
        // Get mechanics first, then initialize DataTable
        $.ajax({
            url: '{{ route("reports.technician.data") }}',
            type: 'GET',
            data: { dealer_id: dealerId, start_date: startDate, end_date: endDate },
            success: function(response) {
                console.log('Initial data response:', response);
                
                if (response.status === 'success' && Array.isArray(response.mechanics)) {
                    mechanics = response.mechanics;
                    console.log('Initial mechanics loaded:', mechanics.length);
                    
                    // Check if user has access to any data
                    if (response.data.length === 0 && response.mechanics.length === 0) {
                        console.log('No data available without dealer filter');
                        // Don't show notification for initial load without dealer filter
                        $('#default-dealer-info').text('Tidak ada data yang tersedia. Silakan pilih dealer untuk memfilter data.');
                        hideLoadingOverlay();
                        return;
                    }
                    
                    // Now initialize DataTable with mechanics ready
                    updateTableStructureWithMechanics();
                    isInitialized = true;
                } else {
                    console.warn('Invalid mechanics data, using fallback');
                    mechanics = [];
                    updateTableStructureWithMechanics();
                    isInitialized = true;
                }
            },
            error: function(xhr, status, error) {
                console.error('Error loading initial mechanics:', error);
                console.error('Response:', xhr.responseText);
                
                toastr.error('Gagal memuat data laporan teknisi. Silakan coba lagi.');
                hideLoadingOverlay();
                
                console.warn('Error loading initial mechanics, using fallback');
                mechanics = [];
                updateTableStructureWithMechanics();
                isInitialized = true;
            }
        });
    }

    function loadTechnicianData() {
        console.log('loadTechnicianData called');
        
        // Get dealer value from Select2 or regular select
        let dealerId = '';
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            dealerId = $('#filter-dealer').select2('val') || '';
            console.log('Using Select2 value:', dealerId);
        } else {
            dealerId = $('#filter-dealer').val() || '';
            console.log('Using regular select value:', dealerId);
        }
        
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        console.log('Date range:', { startDate, endDate });

        const requestData = {
            dealer_id: dealerId || '',
            start_date: startDate,
            end_date: endDate
        };
        
        console.log('Requesting data with params:', requestData);
        
        $.ajax({
            url: '{{ route("reports.technician.data") }}',
            type: 'GET',
            data: requestData,
            success: function(response) {
                
                if (response.status === 'success') {
                    // Validate response data
                    if (response.mechanics && Array.isArray(response.mechanics)) {
                        mechanics = response.mechanics;
                    } else {
                        console.warn('Invalid mechanics data:', response.mechanics);
                        mechanics = [];
                    }
                    
                    // Check if user has access to any data
                    if (response.data.length === 0 && response.mechanics.length === 0) {
                        toastr.info('Tidak ada data yang tersedia untuk filter yang dipilih atau Anda tidak memiliki akses ke data tersebut.');
                        $('#default-dealer-info').text('Tidak ada data yang tersedia untuk filter yang dipilih.');
                    }
                    
                } else {
                    console.error('Server returned error status:', response);
                    toastr.error('Gagal memuat data laporan teknisi');
                }
            },
            error: function(xhr, status, error) {
                console.error('AJAX Error occurred:');
                console.error('Status:', status);
                console.error('Error:', error);
                console.error('Response Text:', xhr.responseText);
                console.error('Status Code:', xhr.status);
                console.error('Status Text:', xhr.statusText);
                
                let errorMessage = 'Gagal memuat data laporan teknisi';
                if (xhr.status === 500) {
                    errorMessage = 'Server error: ' + (xhr.responseText || 'Unknown error');
                } else if (xhr.status === 404) {
                    errorMessage = 'Endpoint tidak ditemukan';
                } else if (xhr.status === 403) {
                    errorMessage = 'Akses ditolak - Anda tidak memiliki izin untuk mengakses data ini';
                }
                
                toastr.error(errorMessage);
            },
            complete: function() {
                
                // Always reset button state and hide overlay
                hideLoadingOverlay();
                
                // Reset button state using stored original text
                var $btnFilter = $('#btn-filter');
                var storedText = $btnFilter.data('original-text') || 'Cari';
                $btnFilter.html(storedText).prop('disabled', false).removeClass('loading');
            }
        });
    }

    function initializeDataTable() {
        try {
            // Destroy existing DataTable if exists and clean up
            if (dataTable && typeof dataTable.destroy === 'function') {
                dataTable.destroy();
                dataTable = null;
            }

            // Clean up existing search inputs
            $('#datatable-search').closest('.row').remove();
            $('#simple-search').closest('.row').remove();

            // Completely recreate table structure to avoid DOM conflicts
            const $table = $('#report-technician-table');
            $table.empty();
            
            // Recreate basic table structure
            $table.html(`
                <thead id="table-header">
                    <tr>
                        <th>No</th>
                        <th>Nama Pekerjaan</th>
                        <th>Kode Pekerjaan</th>
                        <th>Kategori</th>
                    </tr>
                </thead>
                <tbody>
                </tbody>
                <tfoot id="table-footer">
                    <tr>
                        <th colspan="4" class="text-center">Total</th>
                    </tr>
                </tfoot>
            `);

            // Check if DataTable is available
            if (typeof $.fn.DataTable === 'undefined') {
                console.error('DataTable is not loaded');
                return;
            }

            // Check if table element exists
            if ($table.length === 0) {
                console.error('Table element not found');
                return;
            }

            // Get filter values
            let dealerId = '';
            if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
                dealerId = $('#filter-dealer').select2('val') || '';
            } else {
                dealerId = $('#filter-dealer').val() || '';
            }
            
            const startDate = $('#filter-start-date').val();
            const endDate = $('#filter-end-date').val();

            // Try to initialize DataTable with Yajra DataTable
            try {
                // If mechanics are already available, use the complete structure
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    updateTableStructureWithMechanics();
                    return;
                }
                
                dataTable = $table.DataTable({
                    processing: true,
                    serverSide: false, // We'll handle server-side manually
                    ajax: {
                        url: '{{ route("reports.technician.datatable") }}',
                        type: 'GET',
                        data: function(d) {
                            d.dealer_id = dealerId;
                            d.start_date = startDate;
                            d.end_date = endDate;
                            return d;
                        },
                        dataSrc: function(json) {
                            console.log('DataTable response:', json);
                            
                            // Check for error response
                            if (json.error) {
                                console.error('DataTable error:', json.error);
                                toastr.error('Error loading data: ' + json.error);
                                return [];
                            }
                            
                            // Update mechanics from response
                            if (json.mechanics && Array.isArray(json.mechanics)) {
                                mechanics = json.mechanics;
                                console.log('Mechanics loaded:', mechanics.length);
                                
                                // Update table structure with mechanic columns
                                setTimeout(function() {
                                    updateTableStructureWithMechanics();
                                }, 100);
                            }
                            
                            return json.data || [];
                        },
                        error: function(xhr, error, thrown) {
                            console.error('DataTable AJAX error:', {
                                xhr: xhr,
                                error: error,
                                thrown: thrown
                            });
                            
                            let errorMessage = 'Gagal memuat data';
                            if (xhr.responseJSON && xhr.responseJSON.error) {
                                errorMessage = xhr.responseJSON.error;
                            } else if (xhr.status === 500) {
                                errorMessage = 'Server error: ' + (xhr.responseText || 'Unknown error');
                            } else if (xhr.status === 404) {
                                errorMessage = 'Endpoint tidak ditemukan';
                            } else if (xhr.status === 403) {
                                errorMessage = 'Akses ditolak';
                            }
                            
                            toastr.error(errorMessage);
                            hideLoadingOverlay();
                        }
                    },
                    columns: [
                        { data: 'DT_RowIndex', name: 'DT_RowIndex', orderable: false, searchable: false, width: '50px', className: 'text-center' },
                        { data: 'work_name', name: 'work_name', orderable: true, searchable: true },
                        { data: 'work_code', name: 'work_code', orderable: true, searchable: true, width: '120px' },
                        { data: 'category_name', name: 'category_name', orderable: true, searchable: true, width: '150px' }
                    ],
                    pageLength: -1,
                    lengthMenu: [],
                    order: [[1, 'asc']],
                    responsive: false,
                    dom: '<"row"<"col-sm-12"f>>' +
                         '<"row"<"col-sm-12"tr>>' +
                         '<"row"<"col-sm-12"i>>',
                    initComplete: function() {
                        try {
                            var api = this.api();
                            console.log('DataTable initialization complete');
                            console.log('Data rows:', api.data().length);
                            console.log('Mechanics count:', mechanics.length);
                            
                            if (api.data().length === 0) {
                                toastr.info('Tidak ada data yang ditemukan untuk filter yang dipilih. Silakan coba filter yang berbeda.');
                            }
                            
                            // Enable filter button di sini!
                            var $btnFilter = $('#btn-filter');
                            var storedText = $btnFilter.data('original-text') || 'Cari';
                            $btnFilter.html(storedText).prop('disabled', false).removeClass('loading');
                            hideLoadingOverlay();
                        } catch (error) {
                            console.error('Error in initComplete:', error);
                            hideLoadingOverlay();
                        }
                    },
                    drawCallback: function() {
                        try {
                            // Update totals in footer
                            updateTableTotals();
                        } catch (error) {
                            console.error('Error in drawCallback:', error);
                        }
                    }
                });
                
                console.log('DataTable initialized successfully');
                
            } catch (dataTableError) {
                console.error('DataTable initialization failed:', dataTableError);
                toastr.error('Gagal memuat tabel data');
                hideLoadingOverlay();
            }
            
        } catch (error) {
            console.error('Error in initializeDataTable:', error);
            toastr.error('Gagal memuat tabel data');
            hideLoadingOverlay();
        }
    }

    function createFallbackTable(data) {
        try {
            // Clean up existing search inputs
            $('#datatable-search').closest('.row').remove();
            $('#simple-search').closest('.row').remove();
            
            // Ensure DataTable is destroyed
            if (dataTable && typeof dataTable.destroy === 'function') {
                dataTable.destroy();
                dataTable = null;
            }
            
            const $table = $('#report-technician-table');
            $table.empty();
            
            if (data.length > 0) {
                let tableHtml = '<thead><tr>';
                tableHtml += '<th>No</th><th>Nama Pekerjaan</th><th>Kode Pekerjaan</th><th>Kategori</th>';
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    mechanics.forEach(function(mechanic) {
                        if (mechanic && mechanic.name) {
                            tableHtml += `<th>${mechanic.name}</th>`;
                        }
                    });
                }
                tableHtml += '</tr></thead><tbody>';
                
                data.forEach(function(item, index) {
                    tableHtml += `<tr>
                        <td>${index + 1}</td>
                        <td>${item.work_name || ''}</td>
                        <td>${item.work_code || ''}</td>
                        <td>${item.category_name || ''}</td>
                    `;
                    if (Array.isArray(mechanics) && mechanics.length > 0) {
                        mechanics.forEach(function(mechanic) {
                            if (mechanic && mechanic.id) {
                                tableHtml += `<td>${item[`mechanic_${mechanic.id}_total`] || 0}</td>`;
                            }
                        });
                    }
                    tableHtml += '</tr>';
                });
                tableHtml += '</tbody>';
                $table.html(tableHtml);
                
                // Add simple search functionality to fallback table
                addSimpleSearch($table);
                
            } else {
                $table.html('<tbody><tr><td colspan="100%" class="text-center">Tidak ada data yang tersedia untuk filter yang dipilih</td></tr></tbody>');
            }
            console.log('Fallback table created successfully');
            hideLoadingOverlay();
        } catch (fallbackError) {
            console.error('Error creating fallback table:', fallbackError);
            toastr.error('Gagal memuat tabel data. Silakan refresh halaman.');
            hideLoadingOverlay();
        }
    }

    function addMechanicColumns(api) {
        if (!Array.isArray(mechanics) || mechanics.length === 0) {
            console.log('No mechanics to add columns for');
            return;
        }

        try {
            console.log('Adding mechanic columns for', mechanics.length, 'mechanics');
            
            // Instead of adding columns dynamically, we'll update the table structure
            // and reinitialize the DataTable with the complete column configuration
            updateTableStructureWithMechanics();
            
        } catch (error) {
            console.error('Error adding mechanic columns:', error);
        }
    }

    function updateTableStructureWithMechanics() {
        try {
            // Destroy existing DataTable
            if (dataTable && typeof dataTable.destroy === 'function') {
                dataTable.destroy();
                dataTable = null;
            }

            const $table = $('#report-technician-table');
            $table.empty();

            // Build header rows
            let headerRow1 = `
                <tr>
                    <th>No</th>
                    <th>Nama Pekerjaan</th>
                    <th>Kode Pekerjaan</th>
                    <th>Kategori</th>
            `;
            if (Array.isArray(mechanics) && mechanics.length > 0) {
                mechanics.forEach(function(mechanic) {
                    headerRow1 += `<th class="mechanic-column" style="text-align: center; background-color: #f8f9fa;"><strong>${mechanic.name}</strong></th>`;
                });
            }
            headerRow1 += `</tr>`;

            // Set thead
            $table.append(`<thead id="table-header">${headerRow1}</thead>`);
            $table.append('<tbody></tbody>');

            // Build footer
            let footerHtml = '<tr><th colspan="4" class="text-center"><strong>Total</strong></th>';
            if (Array.isArray(mechanics) && mechanics.length > 0) {
                mechanics.forEach(function() {
                    footerHtml += `<th class="text-center mechanic-column"><strong>0</strong></th>`;
                });
            }
            footerHtml += '</tr>';
            $table.append(`<tfoot id="table-footer">${footerHtml}</tfoot>`);

            // Reinitialize DataTable
            initializeDataTableWithMechanics();
        } catch (error) {
            console.error('Error updating table structure:', error);
            hideLoadingOverlay();
        }
    }

    function initializeDataTableWithMechanics() {
        try {
            // Get filter values
            let dealerId = '';
            if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
                dealerId = $('#filter-dealer').select2('val') || '';
            } else {
                dealerId = $('#filter-dealer').val() || '';
            }
            
            const startDate = $('#filter-start-date').val();
            const endDate = $('#filter-end-date').val();

            // Build complete column configuration
            const columns = [
                { data: 'DT_RowIndex', name: 'DT_RowIndex', orderable: false, searchable: false, width: '50px', className: 'text-center' },
                { data: 'work_name', name: 'work_name', orderable: true, searchable: true },
                { data: 'work_code', name: 'work_code', orderable: true, searchable: true, width: '120px' },
                { data: 'category_name', name: 'category_name', orderable: true, searchable: true, width: '150px' }
            ];

            // Add mechanic columns
            if (Array.isArray(mechanics) && mechanics.length > 0) {
                mechanics.forEach(function(mechanic) {
                    if (mechanic && mechanic.id) {
                        columns.push({
                            data: `mechanic_${mechanic.id}_total`,
                            name: `mechanic_${mechanic.id}_total`,
                            title: `${mechanic.name || 'Unknown'}`,
                            orderable: false,
                            searchable: false,
                            className: 'text-center mechanic-column',
                            defaultContent: '0'
                        });
                    }
                });
            }

            // Initialize DataTable with complete configuration
            dataTable = $('#report-technician-table').DataTable({
                processing: true,
                serverSide: false,
                ajax: {
                    url: '{{ route("reports.technician.datatable") }}',
                    type: 'GET',
                    data: function(d) {
                        d.dealer_id = dealerId;
                        d.start_date = startDate;
                        d.end_date = endDate;
                        return d;
                    },
                    dataSrc: function(json) {
                        console.log('DataTable response:', json);
                        
                        // Check for error response
                        if (json.error) {
                            console.error('DataTable error:', json.error);
                            toastr.error('Error loading data: ' + json.error);
                            return [];
                        }
                        
                        // Don't update mechanics from datatable response - use existing mechanics
                        // if (json.mechanics && Array.isArray(json.mechanics)) {
                        //     mechanics = json.mechanics;
                        // }
                        
                        return json.data || [];
                    },
                    error: function(xhr, error, thrown) {
                        console.error('DataTable AJAX error:', {
                            xhr: xhr,
                            error: error,
                            thrown: thrown
                        });
                        
                        let errorMessage = 'Gagal memuat data';
                        if (xhr.responseJSON && xhr.responseJSON.error) {
                            errorMessage = xhr.responseJSON.error;
                        } else if (xhr.status === 500) {
                            errorMessage = 'Server error: ' + (xhr.responseText || 'Unknown error');
                        } else if (xhr.status === 404) {
                            errorMessage = 'Endpoint tidak ditemukan';
                        } else if (xhr.status === 403) {
                            errorMessage = 'Akses ditolak';
                        }
                        
                        toastr.error(errorMessage);
                        hideLoadingOverlay();
                    }
                },
                columns: columns,
                pageLength: -1,
                lengthMenu: [],
                order: [[1, 'asc']],
                responsive: false,
                dom: '<"row"<"col-sm-12"f>>' +
                     '<"row"<"col-sm-12"tr>>' +
                     '<"row"<"col-sm-12"i>>',
                initComplete: function() {
                    try {
                        var api = this.api();
                        console.log('DataTable with mechanics initialization complete');
                        console.log('Data rows:', api.data().length);
                        console.log('Mechanics count:', mechanics.length);
                        
                        if (api.data().length === 0) {
                            toastr.info('Tidak ada data yang ditemukan untuk filter yang dipilih. Silakan coba filter yang berbeda.');
                        } else {
                            // Update totals after initialization
                            setTimeout(function() {
                                updateTableTotals();
                            }, 200);
                        }
                        
                        // Enable filter button di sini!
                        var $btnFilter = $('#btn-filter');
                        var storedText = $btnFilter.data('original-text') || 'Cari';
                        $btnFilter.html(storedText).prop('disabled', false).removeClass('loading');
                        hideLoadingOverlay();
                    } catch (error) {
                        console.error('Error in initComplete:', error);
                        hideLoadingOverlay();
                    }
                },
                drawCallback: function() {
                    try {
                        console.log('DataTable drawCallback triggered');
                        // Add a small delay to ensure data is fully rendered
                        setTimeout(function() {
                            updateTableTotals();
                        }, 100);
                    } catch (error) {
                        console.error('Error in drawCallback:', error);
                    }
                }
            });
            
            console.log('DataTable with mechanics initialized successfully');
            
        } catch (error) {
            console.error('Error initializing DataTable with mechanics:', error);
            toastr.error('Gagal memuat tabel data');
            hideLoadingOverlay();
        }
    }

    function updateTableTotals() {
        if (!dataTable) {
            console.log('DataTable not initialized');
            return;
        }

        try {
            // Get DataTable API - try multiple methods
            let api = null;
            
            // Method 1: Direct API access
            if (dataTable && typeof dataTable.api === 'function') {
                api = dataTable.api();
                console.log('Using dataTable.api() method');
            }
            // Method 2: jQuery DataTable API
            else if (dataTable && typeof dataTable.dataTable === 'function') {
                api = dataTable.dataTable().api();
                console.log('Using dataTable.dataTable().api() method');
            }
            // Method 3: Direct access to DataTable instance
            else if (dataTable && dataTable.api) {
                api = dataTable.api;
                console.log('Using direct dataTable.api access');
            }
            // Method 4: Try to get from jQuery element
            else if ($('#report-technician-table').dataTable) {
                api = $('#report-technician-table').dataTable().api();
                console.log('Using jQuery element dataTable().api() method');
            }
            
            if (!api) {
                console.warn('Cannot access DataTable API - trying alternative method');
                // Alternative: Get data directly from table rows
                updateTableTotalsFromDOM();
                return;
            }

            console.log('DataTable API accessed successfully');
            const data = api.data().toArray();
            console.log('Data rows found:', data.length);
            
            if (data.length === 0) {
                console.log('No data rows found');
                return;
            }

            // Calculate totals for each mechanic
            const totals = {};
            
            if (Array.isArray(mechanics) && mechanics.length > 0) {
                mechanics.forEach(function(mechanic) {
                    if (mechanic && mechanic.id) {
                        totals[`mechanic_${mechanic.id}_total`] = 0;
                    }
                });
            }

            // Sum up values from all rows
            data.forEach(function(row, index) {
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    mechanics.forEach(function(mechanic) {
                        if (mechanic && mechanic.id) {
                            const value = parseInt(row[`mechanic_${mechanic.id}_total`] || 0);
                            totals[`mechanic_${mechanic.id}_total`] += value;
                        }
                    });
                }
            });

            console.log('Calculated totals:', totals);

            // Update footer with totals
            const $footer = $('#table-footer tr');
            if ($footer.length > 0) {
                let footerHtml = '<th colspan="4" class="text-center"><strong>Total</strong></th>';
                
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    mechanics.forEach(function(mechanic) {
                        if (mechanic && mechanic.id) {
                            const total = totals[`mechanic_${mechanic.id}_total`] || 0;
                            footerHtml += `<th class="text-center mechanic-column"><strong>${total}</strong></th>`;
                        }
                    });
                }
                
                $footer.html(footerHtml);
                console.log('Footer updated successfully');
            } else {
                console.warn('Footer row not found');
            }
        } catch (error) {
            console.error('Error updating table totals:', error);
            // Fallback to DOM method
            updateTableTotalsFromDOM();
        }
    }

    function updateTableTotalsFromDOM() {
        try {
            console.log('Using DOM method to calculate totals');
            
            // Calculate totals for each mechanic
            const totals = {};
            
            if (Array.isArray(mechanics) && mechanics.length > 0) {
                mechanics.forEach(function(mechanic) {
                    if (mechanic && mechanic.id) {
                        totals[`mechanic_${mechanic.id}_total`] = 0;
                    }
                });
            }

            // Get data from table rows directly
            const $rows = $('#report-technician-table tbody tr');
            console.log('Found table rows:', $rows.length);
            
            $rows.each(function(index) {
                const $row = $(this);
                const $cells = $row.find('td');
                
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    mechanics.forEach(function(mechanic, mechanicIndex) {
                        if (mechanic && mechanic.id) {
                            // Skip first 4 columns (No, Nama Pekerjaan, Kode Pekerjaan, Kategori)
                            const cellIndex = 4 + mechanicIndex;
                            const $cell = $cells.eq(cellIndex);
                            const value = parseInt($cell.text() || 0);
                            totals[`mechanic_${mechanic.id}_total`] += value;
                        }
                    });
                }
            });

            console.log('DOM calculated totals:', totals);

            // Update footer with totals
            const $footer = $('#table-footer tr');
            if ($footer.length > 0) {
                let footerHtml = '<th colspan="4" class="text-center"><strong>Total</strong></th>';
                
                if (Array.isArray(mechanics) && mechanics.length > 0) {
                    mechanics.forEach(function(mechanic) {
                        if (mechanic && mechanic.id) {
                            const total = totals[`mechanic_${mechanic.id}_total`] || 0;
                            footerHtml += `<th class="text-center mechanic-column"><strong>${total}</strong></th>`;
                        }
                    });
                }
                
                $footer.html(footerHtml);
                console.log('DOM Footer updated successfully');
            }
        } catch (error) {
            console.error('Error in DOM method:', error);
        }
    }

    function addSimpleSearch($table) {
        // Add search input above table
        const searchHtml = `
            <div class="row mb-3">
                <div class="col-sm-12">
                    <div class="input-group">
                        <div class="input-group-prepend">
                            <span class="input-group-text">
                                <i class="fa fa-search"></i>
                            </span>
                        </div>
                        <input type="text" class="form-control" id="simple-search" placeholder="Cari data...">
                    </div>
                </div>
            </div>
        `;
        
        $table.before(searchHtml);
        
        // Add search functionality
        $('#simple-search').on('keyup', function() {
            const searchTerm = $(this).val().toLowerCase();
            $table.find('tbody tr').each(function() {
                const rowText = $(this).text().toLowerCase();
                if (rowText.includes(searchTerm)) {
                    $(this).show();
                } else {
                    $(this).hide();
                }
            });
        });
    }

    // Filter button click - Fixed button state management
    $('#btn-filter').on('click', function() {
        console.log('Filter button clicked');
        
        // Prevent multiple clicks
        var filterButton = $('#btn-filter');
        if (filterButton.hasClass('loading') || filterButton.prop('disabled')) {
            console.log('Button already loading or disabled, ignoring click');
            return; // Already processing
        }
        
        // Get dealer value from Select2 or regular select
        let selectedDealer = '';
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            selectedDealer = $('#filter-dealer').select2('val') || '';
        } else {
            selectedDealer = $('#filter-dealer').val();
        }
        
        console.log('Selected dealer:', selectedDealer);
        
        // Show warning if user selects "Semua Dealer"
        if (selectedDealer === '') {
            if (!confirm('Memilih "Semua Dealer" akan memuat data yang lebih besar dan mungkin memakan waktu lebih lama. Lanjutkan?')) {
                return; // User cancelled
            }
        }
        
        console.log('Filter button clicked - starting data load');
        
        // Store the original button text before changing it
        var originalText = filterButton.html();
        filterButton.data('original-text', originalText);
        
        // Show loading state
        filterButton.addClass('loading').prop('disabled', true);
        filterButton.html('<i class="fa fa-spinner fa-spin"></i> Mencari...');
        
        console.log('Button loading state set, original text:', originalText);
        console.log('Button disabled state:', filterButton.prop('disabled'));
        console.log('Button loading class:', filterButton.hasClass('loading'));
        
        // Show loading overlay
        showLoadingOverlay("Memuat data laporan teknisi..."); 
        
        // Reload DataTable
        if (dataTable && typeof dataTable.destroy === 'function') {
            dataTable.destroy();
            dataTable = null;
        }
        
        // Reset initialization flag to allow re-initialization
        isInitialized = false;
        
        // Get mechanics first, then initialize DataTable
        let dealerId = '';
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            dealerId = $('#filter-dealer').select2('val') || '';
        } else {
            dealerId = $('#filter-dealer').val();
        }
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        $.ajax({
            url: '{{ route("reports.technician.data") }}',
            type: 'GET',
            data: { dealer_id: dealerId, start_date: startDate, end_date: endDate },
            success: function(response) {
                if (response.status === 'success' && Array.isArray(response.mechanics)) {
                    mechanics = response.mechanics;
                    console.log('Filter mechanics loaded:', mechanics.length);
                    updateTableStructureWithMechanics();
                } else {
                    console.warn('Invalid mechanics data, using fallback');
                    mechanics = [];
                    updateTableStructureWithMechanics();
                }
            },
            error: function() {
                console.warn('Error loading mechanics, using fallback');
                mechanics = [];
                updateTableStructureWithMechanics();
            }
        });
    });

    // Export button click
    $('#btn-export-excel').on('click', function() {
        exportToExcel();
    });

    // Reset button click
    $('#btn-reset').on('click', function() {
        console.log('Reset button clicked');
        
        // Reset dealer selection to "Semua Dealer"
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            $('#filter-dealer').val('').trigger('change');
        } else {
            $('#filter-dealer').val('');
        }
        
        // Reset date inputs
        $('#filter-start-date').val('{{ date('Y-m-d', strtotime('-30 days')) }}');
        $('#filter-end-date').val('{{ date('Y-m-d') }}');
        
        console.log('Filters reset to "Semua Dealer", reloading DataTable...');
        
        // Reset initialization flag
        isInitialized = false;
        // Show loading overlay
        showLoadingOverlay("Memuat data laporan teknisi...");
        if (dataTable && typeof dataTable.destroy === 'function') {
            dataTable.destroy();
            dataTable = null;
        }
        
        // Get mechanics first, then initialize DataTable
        let dealerId = '';
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        $.ajax({
            url: '{{ route("reports.technician.data") }}',
            type: 'GET',
            data: { dealer_id: dealerId, start_date: startDate, end_date: endDate },
            success: function(response) {
                if (response.status === 'success' && Array.isArray(response.mechanics)) {
                    mechanics = response.mechanics;
                    console.log('Reset mechanics loaded:', mechanics.length);
                    updateTableStructureWithMechanics();
                } else {
                    console.warn('Invalid mechanics data, using fallback');
                    mechanics = [];
                    updateTableStructureWithMechanics();
                }
            },
            error: function() {
                console.warn('Error loading mechanics, using fallback');
                mechanics = [];
                updateTableStructureWithMechanics();
            }
        });
    });

    function exportToExcel() {
        // Prevent multiple clicks
        var exportButton = $('#btn-export-excel');
        if (exportButton.hasClass('loading')) {
            return; // Already processing
        }
        
        // Get dealer value from Select2 or regular select
        let dealerId = '';
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            dealerId = $('#filter-dealer').select2('val') || '';
        } else {
            dealerId = $('#filter-dealer').val();
        }
        const startDate = $('#filter-start-date').val();
        const endDate = $('#filter-end-date').val();
        
        let url = '{{ route("reports.technician.export") }}';
        let params = [];
        
        if (dealerId) {
            params.push('dealer_id=' + dealerId);
        }
        if (startDate) {
            params.push('start_date=' + startDate);
        }
        if (endDate) {
            params.push('end_date=' + endDate);
        }
        
        if (params.length > 0) {
            url += '?' + params.join('&');
        }
        
        // Show loading state
        exportButton.addClass('loading').prop('disabled', true);
        var originalHtml = exportButton.html();
        exportButton.html('<i class="fa fa-spinner fa-spin"></i> Exporting...');
        
        // Open in new window
        let newWindow = window.open(url, '_blank');
        
        // Reset button and hide overlay after a delay
        setTimeout(function() {
            exportButton.removeClass('loading').prop('disabled', false).html(originalHtml);
            hideLoadingOverlay();
        }, 2000);
    }

    // Make exportToExcel available globally
    window.exportToExcel = exportToExcel;
    
    // Cleanup loading overlay on page unload
    $(window).on('beforeunload', function() {
        hideLoadingOverlay();
    });
    
    // Cleanup Select2 on page unload
    $(window).on('beforeunload', function() {
        if (typeof $.fn.select2 !== 'undefined' && $('#filter-dealer').data('select2')) {
            $('#filter-dealer').select2('destroy');
        }
    });
    
    // Fallback for toastr if not available
    if (typeof toastr === 'undefined') {
        window.toastr = {
            success: function(msg) { console.log('SUCCESS:', msg); },
            error: function(msg) { console.log('ERROR:', msg); },
            warning: function(msg) { console.log('WARNING:', msg); },
            info: function(msg) { console.log('INFO:', msg); }
        };
    }
});
</script>
@endsection