@extends('layouts.default')

@section('content')

<link href="css/plugins/dataTables/datatables.min.css" rel="stylesheet">

<div class="modal inmodal fade" id="CustomerInfo" tabindex="-1" role="dialog" aria-hidden="true">
    <form id="customer" method="POST" action="{{ route('add-customer') }}">
        @csrf
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal"><span
                            aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                    <h4 class="modal-title">Customer Information</h4>
                </div>

                <div class="modal-body">
                    <div id="success-message" class="alert alert-success" style="display: none;">
                        <span></span>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Customer Name <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="customer_name" name="name">
                            <div class="invalid-feedback" id="error-name" style="display: none;">Customer name is required</div>
                        </div>
                        <label class="col-sm-2 col-form-label">Code</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="customer_code" name="code">
                            <div class="invalid-feedback" id="error-code" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Address</label>
                        <div class="col-sm-10">
                            <textarea class="form-control" id="customer_address" name="address" rows="3"></textarea>
                            <div class="invalid-feedback" id="error-address" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Contact No</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="customer_contact_no" name="contact_no" maxlength="20">
                            <div class="invalid-feedback" id="error-contact_no" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">Email</label>
                        <div class="col-sm-4">
                            <input type="email" class="form-control" id="customer_email" name="email">
                            <div class="invalid-feedback" id="error-email" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Company <span class="text-danger">*</span></label>
                        <div class="col-sm-10">
                            <select class="form-control" id="customer_company_id" name="company_id">
                                <option value="">Select Company</option>
                                @foreach($companies as $company)
                                    <option value="{{ $company->id }}">{{ $company->name }}</option>
                                @endforeach
                            </select>
                            <div class="invalid-feedback" id="error-company_id" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">NTN Status <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <select class="form-control" id="customer_ntn_status" name="ntn_status">
                                <option value="Registered" selected>Registered</option>
                                <option value="Un-registered">Un-registered</option>
                            </select>
                            <div class="invalid-feedback" id="error-ntn_status" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">NTN</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="customer_ntn" name="ntn" maxlength="20">
                            <div class="invalid-feedback" id="error-ntn" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">STRN Status <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <select class="form-control" id="customer_strn_status" name="strn_status">
                                <option value="Registered" selected>Registered</option>
                                <option value="Un-registered">Un-registered</option>
                            </select>
                            <div class="invalid-feedback" id="error-strn_status" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">STRN</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="customer_strn" name="strn" maxlength="30">
                            <div class="invalid-feedback" id="error-strn" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Status <span class="text-danger">*</span></label>
                        <div class="col-sm-10">
                            <select class="form-control" id="customer_status" name="status">
                                <option value="Active" selected>Active</option>
                                <option value="Inactive">Inactive</option>
                            </select>
                            <div class="invalid-feedback" id="error-status" style="display: none;"></div>
                        </div>
                    </div>

                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-white" data-dismiss="modal">Close</button>
                    <button type="button" class="btn btn-primary" id="saveCustomer"><i class="fa fa-check"></i>&nbsp;Save
                        Changes</button>
                </div>
            </div>
        </div>
    </form>
</div>
{{-- update customer modal --}}
<div class="modal fade" id="EditCustomerInfo" tabindex="-1" role="dialog" aria-hidden="true">
    <form id="edit-customer-form">
        @csrf
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal">&times;</button>
                    <h4 class="modal-title">Edit Customer Information</h4>
                </div>
                <div class="modal-body">
                    <div id="edit-success-message" class="alert alert-success" style="display: none;">
                        <span></span>
                    </div>
                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Customer Name <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="edit_customer_name" name="name">
                            <div class="invalid-feedback" id="edit-error-name" style="display: none;">
                                Customer name is required
                            </div>
                        </div>
                        <label class="col-sm-2 col-form-label">Code</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="edit_customer_code" name="code">
                            <div class="invalid-feedback" id="edit-error-code" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Address</label>
                        <div class="col-sm-10">
                            <textarea class="form-control" id="edit_customer_address" name="address" rows="3"></textarea>
                            <div class="invalid-feedback" id="edit-error-address" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Contact No</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="edit_customer_contact_no" name="contact_no" maxlength="20">
                            <div class="invalid-feedback" id="edit-error-contact_no" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">Email</label>
                        <div class="col-sm-4">
                            <input type="email" class="form-control" id="edit_customer_email" name="email">
                            <div class="invalid-feedback" id="edit-error-email" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Company <span class="text-danger">*</span></label>
                        <div class="col-sm-10">
                            <select class="form-control" id="edit_customer_company_id" name="company_id">
                                <option value="">Select Company</option>
                                @foreach($companies as $company)
                                    <option value="{{ $company->id }}">{{ $company->name }}</option>
                                @endforeach
                            </select>
                            <div class="invalid-feedback" id="edit-error-company_id" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">NTN Status <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <select class="form-control" id="edit_customer_ntn_status" name="ntn_status">
                                <option value="Un-registered">Un-registered</option>
                                <option value="Registered">Registered</option>
                            </select>
                            <div class="invalid-feedback" id="edit-error-ntn_status" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">NTN</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="edit_customer_ntn" name="ntn" maxlength="20">
                            <div class="invalid-feedback" id="edit-error-ntn" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">STRN Status <span class="text-danger">*</span></label>
                        <div class="col-sm-4">
                            <select class="form-control" id="edit_customer_strn_status" name="strn_status">
                                <option value="Un-registered">Un-registered</option>
                                <option value="Registered">Registered</option>
                            </select>
                            <div class="invalid-feedback" id="edit-error-strn_status" style="display: none;"></div>
                        </div>
                        <label class="col-sm-2 col-form-label">STRN</label>
                        <div class="col-sm-4">
                            <input type="text" class="form-control" id="edit_customer_strn" name="strn" maxlength="30">
                            <div class="invalid-feedback" id="edit-error-strn" style="display: none;"></div>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Status <span class="text-danger">*</span></label>
                        <div class="col-sm-10">
                            <select class="form-control" id="edit_customer_status" name="status">
                                <option value="Active">Active</option>
                                <option value="Inactive">Inactive</option>
                            </select>
                            <div class="invalid-feedback" id="edit-error-status" style="display: none;"></div>
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-white" data-dismiss="modal">Close</button>
                    <button type="button" class="btn btn-primary" id="updateCustomer"><i class="fa fa-check"></i> Update Customer</button>
                </div>
            </div>
        </div>
    </form>
</div>

{{-- Upload Customer Data Modal --}}
<div class="modal fade" id="UploadCustomerData" tabindex="-1" role="dialog" aria-hidden="true">
    <form id="upload-customer-form" enctype="multipart/form-data">
        @csrf
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal"><span
                            aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                    <h4 class="modal-title">Upload Customer Data</h4>
                </div>
                <div class="modal-body">
                    <div id="upload-success-message" class="alert alert-success" style="display: none;">
                        <span></span>
                    </div>
                    <div id="upload-error-message" class="alert alert-danger" style="display: none;">
                        <span></span>
                    </div>
                    <div class="form-group row">
                        <label class="col-sm-3 col-form-label">Select Excel File <span class="text-danger">*</span></label>
                        <div class="col-sm-9">
                            <input type="file" class="form-control" id="customer_excel_file" name="excel_file" accept=".xlsx,.xls">
                            <small class="form-text text-muted">Please upload an Excel file (.xlsx or .xls) matching the sample format.</small>
                            <div class="invalid-feedback" id="error-excel_file" style="display: none;"></div>
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-white" data-dismiss="modal">Close</button>
                    <button type="button" class="btn btn-primary" id="uploadCustomerExcel"><i class="fa fa-upload"></i>&nbsp;Upload</button>
                </div>
            </div>
        </div>
    </form>
</div>

<div class="wrapper wrapper-content animated fadeInRight">
    <div class="row mb-3">
        <div class="col-lg-12">
            <button class="btn btn-primary " type="button" id="addNewCustomer"><i class="fa fa-plus"></i>&nbsp;New
                Customer</button>
            <a href="{{ asset('files/customer_data.xlsx') }}" class="btn btn-success" download><i class="fa fa-download"></i>&nbsp;Sample Excel File</a>
            <button class="btn btn-info" type="button" id="uploadCustomerData"><i class="fa fa-upload"></i>&nbsp;Upload Customer Data</button>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-12">
            <table class="table table-striped table-bordered table-hover" style="width: 100%;" id="customers-table">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>Name</th>
                        <th>Code</th>
                        <th>Contact No</th>
                        <th>Company</th>
                        <th>Email</th>
                        <th>Action</th>
                    </tr>
                </thead>
                <tbody>
                </tbody>
            </table>
        </div>
    </div>
</div>
@push('scripts')
<script>
    $("#addNewCustomer").click(function(){
        $("#CustomerInfo").modal('show');
    });

    // Open upload modal
    $("#uploadCustomerData").click(function(){
        $('#customer_excel_file').val('');
        $('#upload-success-message, #upload-error-message').hide();
        $("#UploadCustomerData").modal('show');
    });
    
    $(document).ready(function() {
        // Define the save button element
        const saveButton = $('#saveCustomer');

        // Function to reset the button state
        function resetButtonState(button, text, disabled = false) {
            button.html(text).prop('disabled', disabled);
        }

        saveButton.on('click', function(e) {
            e.preventDefault();

            let customerData = {
                name: $('#customer_name').val(),
                code: $('#customer_code').val(),
                address: $('#customer_address').val(),
                contact_no: $('#customer_contact_no').val(),
                email: $('#customer_email').val(),
                company_id: $('#customer_company_id').val(),
                ntn_status: $('#customer_ntn_status').val(),
                ntn: $('#customer_ntn').val(),
                strn_status: $('#customer_strn_status').val(),
                strn: $('#customer_strn').val(),
                status: $('#customer_status').val()
            };
            let token = $('input[name="_token"]').val();

            // Change the button text to "Processing..."
            resetButtonState(saveButton,'<i class="fa fa-spinner fa-spin"></i> Processing...', true);

            // Clear previous validation messages
            $('.invalid-feedback').hide();
            $('.form-control').removeClass('is-invalid');

            $.ajax({
                url: "{{ route('add-customer') }}",
                type: "POST",
                data: {
                    _token: token,
                    ...customerData
                },
                success: function(response) {
                    if (response.success) {
                        // Clear input fields
                        $('#customer_name, #customer_code, #customer_address, #customer_contact_no, #customer_email, #customer_ntn, #customer_strn').val('');
                        $('#customer_company_id').val('');
                        $('#customer_ntn_status, #customer_strn_status').val('Registered');
                        $('#customer_status').val('Active');

                        // Show the success message
                        $('#success-message span').text('Customer added successfully!');
                        $('#success-message').fadeIn();

                        // Refresh the DataTable
                        $('#customers-table').DataTable().ajax.reload(null, false);

                        // Optionally hide the message after a few seconds
                        setTimeout(function() {
                            $('#success-message').fadeOut();
                        }, 3000);
                    }

                    // Reset button to "Save Changes"
                    resetButtonState(saveButton,'<i class="fa fa-check"></i> Save Changes');
                },
                error: function(errorResponse) {
                    // Reset button to "Save Changes"
                    resetButtonState(saveButton,'<i class="fa fa-check"></i> Save Changes');

                    if (errorResponse.status === 422) { // Laravel validation error
                        let errors = errorResponse.responseJSON.errors;
                        Object.keys(errors).forEach(function(key) {
                            let fieldId = 'customer_' + key;
                            $('#' + fieldId).addClass('is-invalid');
                            $('#error-' + key).text(errors[key][0]).show();
                        });
                    } else {
                        alert('An error occurred. Please try again.');
                    }
                }
            });
        });

        $(document).on('click', '.edit-button', function() {

            let customerId = $(this).data('id');

            // Fetch customer details from the database
            $.ajax({
                url: `/customers/${customerId}`,
                type: 'GET',
                success: function(data) {
                    // Populate the edit form with the fetched data
                    $('#edit_customer_name').val(data.name);
                    $('#edit_customer_code').val(data.code);
                    $('#edit_customer_address').val(data.address);
                    $('#edit_customer_contact_no').val(data.contact_no);
                    $('#edit_customer_email').val(data.email);
                    $('#edit_customer_company_id').val(data.company_id);
                    $('#edit_customer_ntn_status').val(data.ntn_status);
                    $('#edit_customer_ntn').val(data.ntn);
                    $('#edit_customer_strn_status').val(data.strn_status);
                    $('#edit_customer_strn').val(data.strn);
                    $('#edit_customer_status').val(data.status);

                    // Store customer ID in a data attribute for later
                    $('#edit-customer-form').data('customer-id', customerId);

                    // Open the Edit modal
                    $('#EditCustomerInfo').modal('show');
                },
                error: function() {
                    Swal.fire('Error', 'Could not fetch customer details.', 'error');
                }
            });
        });   
        
        $(document).on('click', '#updateCustomer', function () {
            let customerId = $('#edit-customer-form').data('customer-id');
            let customerData = {
                name: $('#edit_customer_name').val(),
                code: $('#edit_customer_code').val(),
                address: $('#edit_customer_address').val(),
                contact_no: $('#edit_customer_contact_no').val(),
                email: $('#edit_customer_email').val(),
                company_id: $('#edit_customer_company_id').val(),
                ntn_status: $('#edit_customer_ntn_status').val(),
                ntn: $('#edit_customer_ntn').val(),
                strn_status: $('#edit_customer_strn_status').val(),
                strn: $('#edit_customer_strn').val(),
                status: $('#edit_customer_status').val()
            };
            let token = $('input[name="_token"]').val();

            // Get the update button reference
            let updateButton = $('#updateCustomer');

            // Set the button to "Processing..." state
            resetButtonState(updateButton, '<i class="fa fa-spinner fa-spin"></i> Processing...', true);

            // Clear validation messages
            $('.form-control').removeClass('is-invalid');
            $('.invalid-feedback').hide();

            $.ajax({
                url: `/customers/update/${customerId}`,
                type: 'PUT',
                data: {
                    _token: token,
                    ...customerData
                },
                success: function (response) {
                    if (response.success) {
                        // Close the modal
                        $('#EditCustomerInfo').modal('hide');

                        // Refresh the DataTable
                        $('#customers-table').DataTable().ajax.reload(null, false);

                        // Show success alert
                        Swal.fire('Success', 'Customer updated successfully!', 'success');
                    }

                    // Reset the button back to "Update Customer"
                    resetButtonState(updateButton, '<i class="fa fa-check"></i> Update Customer');
                },
                error: function (errorResponse) {
                    // Reset the button back to "Update Customer"
                    resetButtonState(updateButton, '<i class="fa fa-check"></i> Update Customer');

                    if (errorResponse.status === 422) {
                        let errors = errorResponse.responseJSON.errors;
                        Object.keys(errors).forEach(function(key) {
                            $('#edit_customer_' + key).addClass('is-invalid');
                            $('#edit-error-' + key).text(errors[key][0]).show();
                        });
                    } else {
                        Swal.fire('Error', 'Could not update customer.', 'error');
                    }
                },
            });
        });     

        $('#customers-table').DataTable({
            processing: true,
            serverSide: true,
            info: false,
            lengthChange: false,
            ajax: '{{ route('customers.data') }}',
            columns: [
                { data: 'id', name: 'customers.id' },
                { data: 'name', name: 'customers.name' },
                { data: 'code', name: 'customers.code', defaultContent: '-' },
                { data: 'contact_no', name: 'customers.contact_no', defaultContent: '-' },
                { data: 'company_name', name: 'companies.name', defaultContent: '-' },
                { data: 'email', name: 'customers.email', defaultContent: '-' },
                {
                    data: null,
                    render: function (data, type, row) {
                        return `
                            <button class="btn btn-info btn-circle edit-button" type="button" data-id="${row.id}"><i class="fa fa-edit"></i></button>
                            <button class="btn btn-danger btn-circle delete-button" type="button" data-id="${row.id}"><i class="fa fa-times"></i></button>
                        `;
                    },
                    width: '150px', orderable: false, searchable: false
                }
            ],
            order: [[1, 'asc']]
        });

        // Delete button function
        $(document).on('click', '.delete-button', function() {
            let rowId = $(this).data('id'); // Get the ID of the record

            // Confirm deletion using SweetAlert
            Swal.fire({
                title: 'Are you sure?',
                text: "You want to delete this record?",
                icon: 'warning',
                showCancelButton: true,
                confirmButtonColor: '#d33',
                cancelButtonColor: '#3085d6',
                confirmButtonText: 'Yes, delete it!'
            }).then((result) => {
                if (result.isConfirmed) {
                    $.ajax({
                        url: `{{ url('customers/delete') }}/${rowId}`,
                        type: 'DELETE',
                        data: {
                            _token: '{{ csrf_token() }}'
                        },
                        success: function(response) {
                            if (response.success) {
                                // Refresh DataTable after deletion
                                $('#customers-table').DataTable().ajax.reload();

                                // Success alert
                                Swal.fire({
                                    title: 'Deleted!',
                                    text: 'Record deleted successfully!',
                                    icon: 'success',
                                    timer: 2000,
                                    showConfirmButton: false
                                });
                            } else {
                                // Error alert for failed deletion
                                Swal.fire({
                                    title: 'Error!',
                                    text: 'Failed to delete the record.',
                                    icon: 'error'
                                });
                            }
                        },
                        error: function() {
                            // General error alert
                            Swal.fire({
                                title: 'Error!',
                                text: 'An error occurred while deleting the record.',
                                icon: 'error'
                            });
                        }
                    });
                }
            });
        });

        // Upload Excel file handler
        $(document).on('click', '#uploadCustomerExcel', function() {
            let uploadButton = $(this);
            let formData = new FormData();
            let fileInput = $('#customer_excel_file')[0];
            
            if (!fileInput.files || fileInput.files.length === 0) {
                $('#upload-error-message span').text('Please select an Excel file.');
                $('#upload-error-message').show();
                return;
            }

            formData.append('excel_file', fileInput.files[0]);
            formData.append('_token', '{{ csrf_token() }}');

            // Reset messages
            $('#upload-success-message, #upload-error-message').hide();
            
            // Change button to processing state
            uploadButton.html('<i class="fa fa-spinner fa-spin"></i> Processing...').prop('disabled', true);

            $.ajax({
                url: '{{ route("customers.upload-excel") }}',
                type: 'POST',
                data: formData,
                processData: false,
                contentType: false,
                success: function(response) {
                    if (response.success) {
                        $('#upload-success-message span').text(response.message || 'Customers imported successfully!');
                        $('#upload-success-message').show();
                        
                        // Clear file input
                        $('#customer_excel_file').val('');
                        
                        // Refresh DataTable
                        $('#customers-table').DataTable().ajax.reload(null, false);
                        
                        // Close modal after 2 seconds
                        setTimeout(function() {
                            $('#UploadCustomerData').modal('hide');
                        }, 2000);
                    } else {
                        $('#upload-error-message span').text(response.message || 'Failed to import customers.');
                        $('#upload-error-message').show();
                    }
                    uploadButton.html('<i class="fa fa-upload"></i>&nbsp;Upload').prop('disabled', false);
                },
                error: function(xhr) {
                    let errorMessage = 'An error occurred while uploading the file.';
                    if (xhr.responseJSON && xhr.responseJSON.message) {
                        errorMessage = xhr.responseJSON.message;
                    } else if (xhr.responseJSON && xhr.responseJSON.errors) {
                        let errors = xhr.responseJSON.errors;
                        errorMessage = Object.values(errors).flat().join('<br>');
                    }
                    $('#upload-error-message span').html(errorMessage);
                    $('#upload-error-message').show();
                    uploadButton.html('<i class="fa fa-upload"></i>&nbsp;Upload').prop('disabled', false);
                }
            });
        });
    });   
</script>
@endpush
@endsection