@extends('layouts.app')

@section('content')
<div class="container py-4">
    <div class="row">
        <div class="col-12">
            <div class="card shadow-sm">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h3 class="page-title m-0">
                        <i class="fas fa-list-alt me-2 text-danger"></i>All Users
                    </h3>
                </div>
                <div class="card-body">
                    <!-- Filter Controls -->
                    <div class="row mb-4 align-items-center">
                        <div class="col-md-4">
                            <div class="input-group">
                                <span class="input-group-text bg-light">Department</span>
                                <select id="department-filter" class="form-select">
                                    <option value="">All Departments</option>
                                    @foreach($departments as $department)
                                    <option value="{{ $department->id }}">{{ $department->name }}</option>
                                    @endforeach
                                </select>
                            </div>
                        </div>

                        <div class="col-md-4">
                            <div class="input-group">
                                <span class="input-group-text bg-light">Role</span>
                                <select id="role-filter" class="form-select">
                                    <option value="">All Roles</option>
                                    <!-- Category options would be populated dynamically -->
                                     @foreach($roles as $role)
                                        <option value="{{ $role->id }}">{{ $role->name }}</option>
                                    @endforeach
                                </select>
                            </div>
                        </div>
                        
                    <div class="col-md-4 d-flex justify-content-end gap-2">
                        <!-- Add User Button -->
                        <button type="button" class="btn btn-danger" data-bs-toggle="modal" data-bs-target="#addUserModal">
                            <i class="fas fa-plus me-1"></i> Add User
                        </button>
                        
                        <!-- Column Selector -->
                        <div id="columnsSelector" class="">
                            @php
                            use Illuminate\Support\Str;
                            $labels = [
                                'ID',
                                'Name',
                                'Email',
                                'Department Name',
                                'Orcid Id',
                                'Scopus Id',
                                'Mobile No',
                                'Extension',
                                'Role Name',
                                'Actions',
                            ];
                            $columns = [];
                            foreach ($labels as $i => $label) {
                                $columns[] = [
                                    'label' => $label,
                                    'id' => 'column-' . Str::slug($label, '-'),
                                    'value' => $i, // 0-based index
                                    'checked' => true,
                                ];
                            }
                            @endphp
                            <x-column-selector :columns="$columns" />
                        </div>
                    </div>
                </div>


                    <!-- Table -->
                    <div class="table-responsive">
                        <table id="responses-table" class="table table-striped table-hover">                            <thead>
                                <tr>
                                    <th>ID</th>
                                    <th>Name</th>
                                    <th>Email</th>
                                    <th>Department Name</th>
                                    <th>Orcid Id</th>
                                    <th>Scopus Id</th>
                                    <th>Mobile No</th>
                                    <th>Extension</th>
                                    <th>Role Name</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                <!-- Data will be loaded via AJAX -->
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Add User Modal -->
<div class="modal fade" id="addUserModal" tabindex="-1" aria-labelledby="addUserModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header bg-danger text-white">
                <h5 class="modal-title" id="addUserModalLabel">Add New User</h5>
                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="addUserForm">
                <div class="modal-body">
                    <div class="row g-3">
                        <div class="col-md-6">
                            <label for="name" class="form-label">Name <span class="text-danger">*</span></label>
                            <input type="text" class="form-control" id="name" name="name" required>
                        </div>
                        <div class="col-md-6">
                            <label for="email" class="form-label">Email <span class="text-danger">*</span></label>
                            <input type="email" class="form-control" id="email" name="email" required>
                        </div>
                        <div class="col-md-6">
                            <label for="password" class="form-label">Password <span class="text-danger">*</span></label>
                            <input type="password" class="form-control" id="password" name="password" required>
                        </div>
                        <div class="col-md-6">
                            <label for="role_id" class="form-label">Role <span class="text-danger">*</span></label>
                            <select class="form-select" id="role_id" name="role_id" required>
                                <option value="" selected disabled>Select Role</option>
                                <option value="1">Admin</option>
                                <option value="2">HOD</option>
                                <option value="3">Faculty</option>
                            </select>
                        </div>
                        <div class="col-md-6">
                            <label for="department_id" class="form-label">Department</label>
                            <select class="form-select" id="department_id" name="department_id">
                                <option value="" selected disabled>Select Department</option>
                                @foreach($departments as $department)
                                <option value="{{ $department->id }}">{{ $department->name }}</option>
                                @endforeach
                            </select>
                        </div>
                        <div class="col-md-6">
                            <label for="mobile_no" class="form-label">Mobile No</label>
                            <input type="text" class="form-control" id="mobile_no" name="mobile_no">
                        </div>
                        <div class="col-md-6">
                            <label for="extension" class="form-label">Extension</label>
                            <input type="text" class="form-control" id="extension" name="extension">
                        </div>
                        <div class="col-md-6">
                            <label for="orcid_id" class="form-label">ORCID ID</label>
                            <input type="text" class="form-control" id="orcid_id" name="orcid_id">
                        </div>
                        <div class="col-md-6">
                            <label for="scopus_id" class="form-label">Scopus ID</label>
                            <input type="text" class="form-control" id="scopus_id" name="scopus_id">
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                    <button type="submit" class="btn btn-danger">Save User</button>
                </div>
            </form>
        </div>
    </div>
</div>

@endsection

@section('scripts')
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/js/all.min.js" integrity="sha512-Tn2m0TIpgVyTzzvmxLNuqbSJH3JP8jm+Cy3hvHrW7ndTDcJ1w5mBiksqDBb8GpE2ksktFvDB/ykZ0mDpsZj20w==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script>
    const downloadProofsRoute = "{{ route('admin.downloadProofs') }}";
    const currentModel = "{{ isset($model) ? $model : 'ActivitiesAttended' }}";
    const csrf_token = "{{ csrf_token() }}";
    $(document).ready(function() {
        
        const sheetName = "User Data"; // Default sheet name
        let table; // Declare table variable in the outer scope

        function exportOptions() {
            return {
                columns: ':visible',
                format: {
                    body: function(data, row, column, node) {
                        if ($(node).find('select').length) {
                            return $(node).find("select option:selected").text();
                        }
                        return $(node).text();
                    }
                }
            };
        }

        // Function to toggle column visibility - FIXED to check if responsive is initialized
        function toggleColumnVisibility() {
            $('.column-checkbox').each(function() {
                const columnIndex = $(this).val();
                const isChecked = $(this).is(':checked');

                // Show or hide the column based on checkbox state
                if (table) {
                    table.column(columnIndex).visible(isChecked);
                }
            });

            // Adjust table layout only if table and responsive are initialized
            if (table && table.responsive) {
                table.columns.adjust().responsive.recalc();
            } else if (table) {
                table.columns.adjust();
            }
        }

        var initAjaxRoute = function(route) {
            // If table already exists, destroy it before re-initializing
            if ($.fn.DataTable.isDataTable('#responses-table')) {
                $('#responses-table').DataTable().destroy();
            }

            table = $("#responses-table").DataTable({
                processing: true,
                serverSide: true,
                responsive: true,
                ajax: {
                    url: route,
                    data: function(d) {                        d.department = $('#department-filter').val();
                        d.role = $('#role-filter').val();
                    }
                },                columns: [
                    { data: 'id', name: 'id', searchable: false },
                    { data: 'name', name: 'name' },
                    { data: 'email', name: 'email' },
                    { data: 'department_name', name: 'department_name' },
                    { data: 'orcid_id', name: 'orcid_id' },
                    { data: 'scopus_id', name: 'scopus_id', searchable: false },
                    { data: 'mobile_no', name: 'mobile_no' },
                    { data: 'extension', name: 'extension' },
                    { data: 'role_name', name: 'role_name' },
                    {
                        data: 'action',
                        name: 'action',
                        orderable: false,
                        searchable: false
                    }
                ],
                columnDefs: [
                    {
                        targets: '_all',
                        className: 'text-center wrap-text'
                    },
                    {
                        targets: 9,
                        render: function(data, type, row) {
                            return '<div class="btn-group" role="group">' +
                                data +
                                '</div>';
                        }
                    }
                ],
                dom: '<"d-flex justify-content-between align-items-center mb-3"<"d-flex align-items-center"l><"d-flex"f<"ms-2"B>>>rtip',
                buttons: [{
                        extend: 'copy',
                        text: '<i class="fas fa-copy me-1"></i> Copy',
                        className: 'btn btn-sm btn-outline-white',
                        title: sheetName,
                        exportOptions: exportOptions()
                    },
                    {
                        extend: 'csv',
                        text: '<i class="fas fa-file-csv me-1"></i> CSV',
                        className: 'btn btn-sm btn-outline-white',
                        title: sheetName,
                        exportOptions: exportOptions()
                    },
                    {
                        extend: 'excel',
                        text: '<i class="fas fa-file-excel me-1"></i> Excel',
                        className: 'btn btn-sm btn-outline-white',
                        title: sheetName,
                        exportOptions: exportOptions()
                    },
                    {
                        extend: 'pdf',
                        text: '<i class="fas fa-file-pdf me-1"></i> PDF',
                        className: 'btn btn-sm btn-outline-white',
                        title: sheetName,
                        exportOptions: exportOptions()
                    },
                    {
                        extend: 'print',
                        text: '<i class="fas fa-print me-1"></i> Print',
                        className: 'btn btn-sm btn-outline-white',
                        title: sheetName,
                        exportOptions: exportOptions()
                    }
                ],
                language: {
                    search: "<i class='fas fa-search'></i> _INPUT_",
                    searchPlaceholder: "Search records...",
                    lengthMenu: "<i class='fas fa-list me-1'></i> _MENU_ records per page",
                    info: "Showing _START_ to _END_ of _TOTAL_ entries",
                    paginate: {
                        first: "<i class='fas fa-angle-double-left'></i>",
                        last: "<i class='fas fa-angle-double-right'></i>",
                        next: "<i class='fas fa-angle-right'></i>",
                        previous: "<i class='fas fa-angle-left'></i>"
                    }
                },
                // Important: Initialize the column visibility after table is drawn
                initComplete: function() {
                    // Now it's safe to set column visibility
                    toggleColumnVisibility();
                },
            });

            // Apply filters when they change
            $('#department-filter, #role-filter').change(function() {
                table.ajax.reload();
            });

            return table;
        };

        // Delete button handler
        $('#responses-table').on('click', '.delete-btn', function() {
            if (confirm('Are you sure you want to delete this record?')) {
                const id = $(this).data('id');
                const url = $(this).data('url');

                $.ajax({
                    url: url,
                    type: 'DELETE',
                    data: {
                        "_token": "{{ csrf_token() }}"
                    },
                    success: function(result) {
                        table.ajax.reload();
                        showToast('Record deleted successfully', 'success');
                    },
                    error: function(error) {
                        console.error(error);
                        showToast('Error deleting record', 'danger');
                    }
                });
            }
        });

        // Handle inline role change
        $('#responses-table').on('change', '.user-role-dropdown', function() {
            const userId = $(this).data('user-id');
            const newRoleId = $(this).val();
            $.ajax({
                url: `/users/${userId}`,
                type: 'PATCH',
                data: {
                    _token: csrf_token,
                    role_id: newRoleId
                },
                success: function() {
                    table.ajax.reload(null, false);
                    showToast('Role updated successfully', 'success');
                },
                error: function() {
                    showToast('Error updating role', 'danger');
                }
            });
        });
        
        // Toast notification function
        function showToast(message, type) {
            const toastContainer = document.createElement('div');
            toastContainer.className = 'position-fixed bottom-0 start-0 p-3';
            toastContainer.style.zIndex = '1050';

            const toastEl = document.createElement('div');
            toastEl.className = `toast align-items-center text-white bg-${type} border-0`;
            toastEl.setAttribute('role', 'alert');
            toastEl.setAttribute('aria-live', 'assertive');
            toastEl.setAttribute('aria-atomic', 'true');

            toastEl.innerHTML = `
        <div class="d-flex">
            <div class="toast-body">
                ${message}
            </div>
            <button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
        </div>
    `;

            toastContainer.appendChild(toastEl);
            document.body.appendChild(toastContainer);

            const toast = new bootstrap.Toast(toastEl, {
                autohide: true,
                delay: 3000
            });

            toast.show();

            toastEl.addEventListener('hidden.bs.toast', function() {
                document.body.removeChild(toastContainer);
            });
        }

        // Set the appropriate data route based on user role
        const userRole = "{{ auth()->user()->role->name }}";
        let dataRoute = "{{ route('admin.users.data') }}";


        // Initialize the data table
        table = initAjaxRoute(dataRoute);

        // Attach change event listener to column visibility checkboxes AFTER table is initialized
        $('.column-checkbox').on('change', function() {
            toggleColumnVisibility();
        });

        // Ensure "Actions" column is always visible
        $('#column-actions').prop('disabled', true);


        // Set department filter from query string if present
        $(document).ready(function() {
            const urlParams = new URLSearchParams(window.location.search);
            const departmentId = urlParams.get('department_id');
            if (departmentId) {
                $('#department-filter').val(departmentId).trigger('change');
            }
        });

        // Handle Add User Form Submission
        $('#addUserForm').on('submit', function(e) {
            e.preventDefault();
            
            // Clear previous errors
            $('.is-invalid').removeClass('is-invalid');
            $('.invalid-feedback').remove();

            const formData = new FormData(this);
            formData.append('_token', csrf_token);

            $.ajax({
                url: "{{ route('users.store') }}",
                type: 'POST',
                data: formData,
                processData: false,
                contentType: false,
                success: function(response) {
                    $('#addUserModal').modal('hide');
                    $('#addUserForm')[0].reset();
                    table.ajax.reload();
                    showToast('User added successfully', 'success');
                },
                error: function(xhr) {
                    if (xhr.status === 422) {
                        const errors = xhr.responseJSON.errors;
                        Object.keys(errors).forEach(function(key) {
                            const input = $(`#${key}`);
                            input.addClass('is-invalid');
                            input.after(`<div class="invalid-feedback">${errors[key][0]}</div>`);
                        });
                    } else {
                        showToast('Error adding user', 'danger');
                    }
                }
            });
        });
    });
</script>
<style>
    .form-check-input:checked {
        background-color: #b7202e;
        border-color: #ed1c24;
    }


    .dropdown-menu {
        background-color: #fff;
        border-radius: 0.5rem;
        box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    }

    .dropdown-menu .form-check-input:checked {
        background-color: #b7202e;
        border-color: #ed1c24;
    }

    .dropdown-menu .form-check-input:focus {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:checked:focus {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible {
        outline: none;
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:checked:focus-visible {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:checked {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked) {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):checked {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):not(:checked) {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):not(:checked):checked {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):not(:checked):not(:checked) {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):not(:checked):not(:checked):checked {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .dropdown-menu .form-check-input:focus-visible:not(:checked):not(:checked):not(:checked):not(:checked) {
        box-shadow: 0 0 0 0.2rem rgba(189, 72, 46, 0.25);
    }

    .form-switch .form-check-input {
        width: 2.5em;
        margin-left: -2.8em;
        position: relative;
    }

    .form-switch .form-check-input:focus {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba%280, 0, 0, 0.25%29'/%3e%3c/svg%3e");
    }

    .form-switch .form-check-input:checked {
        background-position: right center;
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
        transition: background-position 0.15s ease-in-out;
    }

    /* Enhance the toggle appearance */
    .form-switch .form-check-input {
        background-size: contain;
        transition: 0.2s;
    }

    .dropdown-menu {
        max-height: 400px;
        overflow-y: auto;
    }

    /* Ensure the table container is responsive */
    .table-responsive {
        overflow-x: auto;
        white-space: nowrap;
    }

    /* Ensure the table fits within the container */
    #responses-table {
        width: 100% !important;
    }


    .select-checkbox {
        width: 30px;
        text-align: center;
    }

    .select-checkbox input[type="checkbox"] {
        width: 18px;
        height: 18px;
        cursor: pointer;
    }

    .select-checkbox input[type="checkbox"]:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }

    /* Style the Download button */
    #download-proofs {
        background-color: #28a745;
        border-color: #28a745;
    }

    #download-proofs:hover:not(:disabled) {
        background-color: #218838;
        border-color: #218838;
    }

    #download-proofs:disabled {
        opacity: 0.65;
        cursor: not-allowed;
    }
</style>
@endsection