@{
    ViewData["Title"] = "Item Form";
    Layout = "~/Views/Shared/_Layout.cshtml";
    string userId = ViewBag.UserId;
}

<style>
    .table td img {
        display: block !important;
    }
</style>
@await Html.PartialAsync("~/Areas/Inventory/Views/_InventoryPartial.cshtml");
<div id="registerItem" class="row">
    <div class="row card">
        <div class="card-header">
            <button id="addItemBtn" class="btn btn-success col-md-3 col-lg-3 m-1 col-12"><i class="fa fa-plus"></i>&nbsp;Add Item</button>
        </div>
        <div class="card-body">
        @*  <div v-if="loading">
                <div class="spinner-border text-info" role="status">
                    <span class="visually-hidden">Loading...</span>
                </div>
            </div> *@
            <table class="table table-bordered table-hover table-striped no-wrap" id="itemDatatable" style="width:100%;border-style: solid; border-width: 1px"></table>
        </div>
    </div>
    <div class="modal fade" id="QrItemModal" tabindex="-1" role="dialog" aria-labelledby="QrItemModalLabel" aria-hidden="true" data-bs-target="#staticBackdrop">
        <div class="modal-dialog modal-dialog-centered modal-sm" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="QrItemModalLabel">{{thisQR}}</h5>
                    <button type="button" class="closeModal btn-close" data-bs-dismiss="modal" aria-label="Close" v-on:click="showItemModal=false"></button>
                </div>
                <div class="modal-body d-flex justify-content-center align-items-center">
                    <div id="QrContainer">
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="modal fade" id="registerItemModal" tabindex="-1" role="dialog" aria-labelledby="addItemModalLabel" aria-hidden="true">
        <div class="modal-dialog modal-dialog-centered modal-xl" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title" id="addItemModalLabel">Add Item</h5>
                    <button type="button" class="closeModal" data-dismiss="modal" aria-label="Close" v-on:click="showItemModal=false">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    <div class="container-fluid">
                        <form v-on:submit.prevent="addItem" data-aos="fade-right">
                            <div class=" register" data-aos="fade-right">
                                <div class="row" data-aos="fade-right">

                                    @*Right Side*@
                                    <div class="col-md-12">
                                        <div class="tab-content" id="myTabContent">
                                            <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">
                                                <h3 class="register-heading">REGISTRATION ITEM</h3>
                                                <div class="row register-form">
                                                    <div class="col-md-6">

                                                        <!-- Company Dropdown -->
                                                        <div class="form-group row">
                                                            <label class="col-sm-4 col-form-label">Company:</label>
                                                            <div class="col-sm-8">
                                                                <div class="dropdown">
                                                                    <select class="btn btn-primary dropdown-toggle col-md-10" v-model="selectedCompany" required>
                                                                        <option class="btn-light" value="" disabled selected>Select Company</option>
                                                                        <option class="btn-light" v-for="(item, index) in companies" :key="index" :value="item.companyId">{{item.companyName}}</option>
                                                                    </select>
                                                                </div>
                                                            </div>
                                                        </div>

                                                        <!-- Department Dropdown -->
                                                        <div class="form-group row">
                                                            <label class="col-sm-4 col-form-label">Department:</label>
                                                            <div class="col-sm-8">
                                                                <select class="btn btn-primary dropdown-toggle col-md-10" v-model="selectedDepartment" required>
                                                                    <option class="btn-light" value="" disabled selected>Select Department</option>
                                                                    <option class="btn-light" v-for="(dept, index) in filteredDepartments" :key="index" :value="dept.departmentId">{{ dept.departmentName }}</option>
                                                                </select>
                                                            </div>
                                                        </div>

                                                        <!-- TeamType Dropdown -->
                                                        <div class="form-group row">
                                                            <label class="col-sm-4 col-form-label">Team:</label>
                                                            <div class="col-sm-8">
                                                                <select class="btn btn-primary dropdown-toggle col-md-10" v-model="teamType" required>
                                                                    <option class="btn-light" value="" disabled selected>Select Team</option>
                                                                    <option class="btn-light" v-for="(team, index) in teamTypes" :key="index" :value="team">{{ team }}</option>
                                                                </select>
                                                            </div>
                                                        </div>


                                                        @* Product Name Coding *@
                                                        <div class="form-group row">
                                                            <label class="col-sm-4 col-form-label">Product Name:</label>
                                                            <div class="col-sm-8">
                                                                <div class="dropdown">
                                                                    <select class="btn btn-primary dropdown-toggle col-md-10" v-model="selectedProduct" required>
                                                                        <option class="btn-light" value="" disabled selected>Select Product</option>
                                                                        <option class="btn-light" v-for="(item, index) in products" :key="index" :value="item.productId">{{ item.productName + ' (' + item.modelNo + ')' }}</option>
                                                                    </select>
                                                                </div>
                                                            </div>
                                                        </div>

                                                        @* Product Image Display *@
                                                        <div class="form-group row align-items-center">
                                                            <label for="imageProduct" class="col-sm-4 col-form-label">Product Image: </label>
                                                            <div class="col-sm-8">
                                                                <img v-if="showProduct.imageProduct" :src="showProduct.imageProduct" alt="Product Image" class="img-fluid" data-toggle="modal" data-target="#imageModal" />
                                                                <input type="hidden" id="imageProduct" name="imageProduct" v-model="showProduct">
                                                            </div>
                                                        </div>

                                                        <!-- Modal -->
                                                        <div class="modal fade" id="imageModal" tabindex="-1" role="dialog" aria-labelledby="imageModalLabel" aria-hidden="true">
                                                            <div class="modal-dialog modal-lg" role="document">
                                                                <div class="modal-content">
                                                                    <div class="modal-header">
                                                                        <h5 class="modal-title" id="imageModalLabel">Product Image</h5>
                                                                        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                                                            <span aria-hidden="true">&times;</span>
                                                                        </button>
                                                                    </div>
                                                                    <div class="modal-body">
                                                                        <img :src="showProduct.imageProduct" alt="Product Image" class="img-fluid">
                                                                    </div>
                                                                    <div class="modal-footer">
                                                                        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
                                                                    </div>
                                                                </div>
                                                            </div>
                                                        </div>

                                                        @* Product Category Coding *@
                                                        <div class="form-group row">
                                                            <label class="col-sm-4 col-form-label">Product Category:</label>
                                                            <div class="col-sm-8">
                                                                <input type="text" id="category" name="category" v-model="showProduct.category" class="form-control" readonly />
                                                            </div>
                                                        </div>

                                                        @* Serial Number and Quantity Coding *@
                                                        <div v-if="showSerialNumber">
                                                            <div class="form-group row align-items-center">
                                                                <div class="col-sm-4">
                                                                    <label for="serialNumber">Serial Number: </label>
                                                                </div>
                                                                <div class="col-sm-8">
                                                                    <input type="text" id="serialNumber" name="serialNumber" v-if="showSerialNumber" v-model="serialNumber" class="form-control" v-bind:required="showSerialNumber">
                                                                </div>
                                                            </div>
                                                        </div>

                                                        <div v-if="!showSerialNumber">
                                                            <div class="form-group row align-items-center">
                                                                <div class="col-sm-4">
                                                                    <label for="quantity">Quantity: </label>
                                                                </div>
                                                                <div class="col-sm-8">
                                                                    <input type="number" id="quantity" name="quantity" min="1" v-if="!showSerialNumber" v-model="quantity" class="form-control" v-bind:required="!showSerialNumber">
                                                                </div>
                                                            </div>
                                                        </div>

                                                        @* Supplier coding *@
                                                        <div class="form-group row align-items-center">
                                                            <label class="col-sm-4 col-form-label">Supplier: </label>
                                                            <div class="col-sm-8">
                                                                <div class="dropdown">
                                                                    <select class="btn btn-primary dropdown-toggle col-md-10" data-toggle="dropdown" aria-expanded="false" v-model="selectedSupplier" required>
                                                                        <option class="btn-light" value="" disabled selected>Select Supplier</option>
                                                                        <option class="btn-light" v-for="(item, index) in suppliers">{{ item.supplierName }}</option>
                                                                    </select>
                                                                </div>
                                                            </div>
                                                        </div>

                                                        @* Purchase Date coding *@
                                                        <div class="form-group row align-items-center">
                                                            <label for="purchaseDate" class="col-sm-4 col-form-label">Purchase Date: </label>
                                                            <div class="col-sm-8">
                                                                <input type="date" id="purchaseDate" name="purchaseDate" required v-model="purchaseDate" class="form-control">
                                                            </div>
                                                        </div>

                                                        @* PO coding *@
                                                        <div class="form-group row align-items-center">
                                                            <label for="PO" class="col-sm-4 col-form-label">Enter PO: </label>
                                                            <div class="col-sm-8">
                                                                <input type="text" id="PO" name="PO" required v-model="PO" placeholder="PO123456" class="form-control">
                                                            </div>
                                                        </div>
                                                    </div>

                                                    <div class="col-md-6">
                                                        @* Item Price in RM *@
                                                        <div class="form-group row">
                                                            <label for="priceInRM" class="col-sm-4">Default Item Price:</label>
                                                            <div class="col-sm-8">
                                                                <input type="number" id="priceInRM" name="priceInRM" class="form-control" placeholder="RM 00.00" step="0.01" min="0.01" v-on:input="convertCurrency()" required v-model="priceInRM">
                                                            </div>
                                                        </div>

                                                        @* Currency Selection *@
                                                        <div class="form-group row">
                                                            <label for="currency" class="col-sm-4">Select Currency:</label>
                                                            <div class="col-sm-8">
                                                                <select id="currency" name="currency" class="btn btn-primary form-control col-md-10" v-model="currency" v-on:change="convertCurrency()">
                                                                    <option class="btn-light" value="" disabled selected>Select a currency</option>
                                                                    <option class="btn-light" v-for="(name, code) in currencies" :key="code" :value="code">
                                                                        {{ code }} - {{ name }}
                                                                    </option>
                                                                </select>
                                                            </div>
                                                        </div>

                                                        @* Currency Rate *@
                                                        <div class="form-group row">
                                                            <label for="currencyRate" class="col-sm-4">Currency Rate(%):</label>
                                                            <div class="col-sm-8">
                                                                <input type="number" id="currencyRate" name="currencyRate" class="form-control" placeholder="0.01" step="0.01" min="1" v-on:input="convertCurrency()" required v-model="currencyRate">
                                                            </div>
                                                        </div>

                                                        @* Item Convert Price *@
                                                        <div class="form-group row">
                                                            <label for="convertPrice" class="col-sm-4">{{ currency ? 'Item Price (' + currency + ') : ' : 'Item Price : ' }}</label>
                                                            <div class="col-sm-8">
                                                                <input type="number" id="convertPrice" name="convertPrice" class="form-control" readonly v-model="convertPrice">
                                                            </div>
                                                        </div>

                                                        @* Delivery Order Number *@
                                                        <div class="form-group row">
                                                            <label for="DONo" class="col-sm-4">Enter DO Number:</label>
                                                            <div class="col-sm-8">
                                                                <input type="text" id="DONo" name="DONo" class="form-control" v-model="DONo" placeholder="DO123456">
                                                            </div>
                                                        </div>

                                                        @* Delivery Order Date *@
                                                        <div class="form-group row">
                                                            <label for="DODate" class="col-sm-4">Enter DO Date:</label>
                                                            <div class="col-sm-8">
                                                                <input type="date" id="DODate" name="DODate" class="form-control" v-on:input="calculateWarrantyEndDate()" v-model="DODate">
                                                            </div>
                                                        </div>

                                                        @* Warranty *@
                                                        <div class="form-group row">
                                                            <label for="warranty" class="col-sm-4">Enter Warranty (Months):</label>
                                                            <div class="col-sm-8">
                                                                <input type="number" id="warranty" name="warranty" class="form-control" placeholder="0 , 1 , 2 , 3, ..." step="1" min="0" v-on:input="calculateWarrantyEndDate()" required v-model="warranty">
                                                            </div>
                                                        </div>

                                                        @* Warranty End Date *@
                                                        <div class="form-group row">
                                                            <label for="EndWDate" class="col-sm-4">Warranty End:</label>
                                                            <div class="col-sm-8">
                                                                <input type="date" id="EndWDate" name="EndWDate" class="form-control" readonly v-model="EndWDate">
                                                            </div>
                                                        </div>

                                                        @* Invoice Number *@
                                                        <div class="form-group row">
                                                            <label for="invoiceNo" class="col-sm-4">Invoice Number:</label>
                                                            <div class="col-sm-8">
                                                                <input type="text" id="invoiceNo" name="invoiceNo" class="form-control" v-model="invoiceNo" placeholder="Invoice123456">
                                                            </div>
                                                        </div>

                                                        @* Invoice Date *@
                                                        <div class="form-group row">
                                                            <label for="invoiceDate" class="col-sm-4">Invoice Date:</label>
                                                            <div class="col-sm-8">
                                                                <input type="date" id="invoiceDate" name="invoiceDate" class="form-control" v-model="invoiceDate">
                                                            </div>
                                                        </div>

                                                    </div>

                                                    @* Submit and Reset Buttons *@
                                                    <div class="form-group row">
                                                        <div class="col-sm-8 offset-sm-3">
                                                            <button type="button" v-on:click="resetForm" class="btn btn-secondary">Reset</button>
                                                            <input type="submit" class="btn btn-primary" value="Submit" />
                                                        </div>
                                                    </div>

                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

@section Scripts {
@{
    await Html.RenderPartialAsync("_ValidationScriptsPartial");
}
<script>
    $(function () {
            app.mount('#registerItem');

            // Attach a click event listener to elements with the class 'btn-success'.
            $('#addItemBtn').on('click', function () {
                // Show the modal with the ID 'addManufacturerModal'.
                $('#registerItemModal').modal('show');
            });
            $('.closeModal').on('click', function () {
                // Show the modal with the ID 'addManufacturerModal'.
                $('.modal').modal('hide');
            });
    });
    const app = Vue.createApp({
        data() {
            return {
                companies: [ 
                    { 
                        companyId: 1,
                        companyName: "PSTW",
                        departments: [{ departmentId: 1, departmentName: "Air" }, { departmentId: 2, departmentName: "Marine" }, { departmentId: 3, departmentName: "River" }]
                    },
                    { 
                        companyId: 2,
                        companyName: "TES",
                        departments: [{ departmentId: 1, departmentName: "Air" }],
                    },
                ],
                company: "",
                Dept: null,
                teamTypes: ["Continuous", "Manual"],
                teamType: "",
                productName: null,
                imageProduct: null,
                productCategory: null,
                serialNumber: "",
                quantity: 1,
                supplierName: null,
                purchaseDate: null,
                PO: null,
                currency: "MYR",
                priceInRM: 0.01,
                currencyRate: 1,
                convertPrice: 0,
                DONo:null,
                DODate: null,
                warranty: 0,
                EndWDate: null,
                invoiceNo: null,
                invoiceDate: null,
                products: [],
                depts: [],
                suppliers: [
                    {
                        supplierId: 1,
                        supplierName: "Pang",
                    },
                    {
                        supplierId: 2,
                        supplierName: "Ms Kim",
                    },       
                ],
                isModalOpen: false,
                selectedProduct: "",
                selectedSupplier: "",
                selectedCompany: "",
                selectedDepartment: "",
                currencies: {},
                showItemModal: false,
                loading: false,
                thisQR: null,
                items: [],
            }
        },
        mounted() {// Log the token to check its value

            // Fetch companies, depts, and products from the API
            this.fetchItem();
            this.fetchCurrencyData();
            this.fetchCompanies();
            this.fetchProducts();
            this.fetchSuppliers();
        },
        computed: {
            filteredDepartments() {
                if (!this.selectedCompany) {
                    return []; // No company selected, return empty list
                }
                const company = this.companies.find(c => c.companyId === this.selectedCompany);
                return company ? company.departments : [];
            },
            showProduct() {
                if (!this.selectedProduct) {
                    return []; // No company selected, return empty list
                }
                const product = this.products.find(c => c.productId === this.selectedProduct);
                return product ? product : {};
            },
            showSerialNumber() {
                return this.showProduct.category === 'Asset' || this.showProduct.category === 'Part';
            },
        },
        methods: {
            async addItem() {
                if (this.showProduct.category == "Disposable") {
                    this.serialNumber = "";
                }
                const formData = {
                    CompanyId: this.selectedCompany,
                    DepartmentId: this.selectedDepartment,
                    ProductId: this.selectedProduct,
                    SerialNumber: this.serialNumber,
                    Quantity: this.quantity,
                    Supplier: this.selectedSupplier,
                    PurchaseDate: this.purchaseDate,
                    PONo: this.PO,
                    Currency: this.currency,
                    PriceInRM: this.priceInRM,
                    CurrencyRate: this.currencyRate,
                    ConvertPrice: this.convertPrice,
                    DODate: this.DODate,
                    Warranty: this.warranty,
                    EndWDate: this.EndWDate,
                    InvoiceDate: this.invoiceDate
                };

                try {

                    // Additional specific checks
                    if (this.showSerialNumber) {
                        this.quantity = 0;
                        if (this.serialNumber === null || this.serialNumber === '') {
                            alert('Serial Number Error', 'Serial Number must be filled when selecting Item or Part.', 'warning');
                            return;
                        }
                    }
                    else {
                        this.serialNumber = null;
                        if (this.quantity === 0 || this.quantity === null || this.quantity === '') {
                            alert('quantity Error', 'Quantity is required when selecting Disposable.', 'warning');
                            return;
                        }
                    }

                    // Proceed to send the data to the API
                    const response = await fetch('/InvMainAPI/AddItem', {
                        method: 'POST',
                        headers: {
                            'Content-Type': 'application/json',
                            // 'Authorization': `Bearer ${this.token}`
                        },
                        body: JSON.stringify(formData)
                    });
                    if (response.ok) {
                        // If the form submission was successful, display a success message
                        alert('Success!', 'Item form has been successfully submitted.', 'success');

                        // Reset the form
                        this.resetForm();
                    } else {
                        throw new Error('Failed to submit form.');
                    }

                } catch (error) {
                    console.error('Error:', error);

                    // Displaying error message
                    alert('Inventory PSTW Error', `An error occurred: ${error.message}`, 'error');
                }

            },

            initiateTable() {
                self = this;
                this.itemDatatable = $('#itemDatatable').DataTable({
                    "data": this.items,
                    "columns": [
                        {
                            "title": "Unique Id",
                            "data": "uniqueID",
                            "createdCell": function (td, cellData, rowData, row, col) {
                                // Assign a unique ID to the <td> element
                                $(td).attr('id', `qr${cellData}`);
                            },
                        },
                        {
                            "title": "Serial Number",
                            "data": "serialNumber",
                        },
                        {
                            "title": "Quantity",
                            "data": "quantity",
                        },
                        {
                            "title": "Supplier",
                            "data": "supplier",
                        },
                        {
                            "title": "Purchase Date",
                            "data": "purchaseDate",
                        },
                        {
                            "title": "Price After Convert(RM)",
                            "data": "convertPrice",
                        },
                        {
                            "title": "Invoice Date",
                            "data": "invoiceDate",
                        },
                        {
                            "title": "Warranty Until",
                                "data": "warranty",
                            "render": function (data, type, full, meta) {
                                if (data > 0) { return full.endWDate }
                                else { return data }
                            }
                        },
                        // {
                        //     "title": "Image",
                        //     "data": "imageProduct",
                        //     "render": function (data, type, full, meta) {
                        //         var image = `<a href="${data}" target="_blank" data-lightbox="image-1">
                        //                             <img src="${data}" alt="Image" class="img-thumbnail" style="width: 100px; height: 100px;" />
                        //                         </a>`;
                        //         return image;
                        //     },
                        // },
                        {
                            "title": "Print",
                            "data": "uniqueID",
                            "render": function (data) {
                                var printButton = `<button type="button" class="btn btn-success print-btn" data-id="${data}">Print</button>`;
                                return printButton;
                            },
                        },
                        {
                            "title": "Delete",
                            "data": "productId",
                            "render": function (data) {
                                var deleteButton = `<button type="button" class="btn btn-danger delete-btn" data-id="${data}">Delete</button>`;
                                return deleteButton;
                            },
                        }
                    ],
                    responsive: true,
                    drawCallback: function (settings) {
                        // Generate QR codes after rows are rendered
                        const api = this.api();
                        api.rows().every(function () {
                            const data = this.data(); // Row data
                            const containerId = `qr${data.uniqueID}`;
                            const container = $(`#${containerId}`);
                            // console.log(container[0]);
                            if (container) {
                                // Generate QR code only if not already generated
                                new QRCode(container[0], {
                                    text: data.qrString,
                                    width: 150,
                                    height: 150,
                                    colorDark: "#000000",
                                    colorLight: "#ffffff",
                                    correctLevel: QRCode.CorrectLevel.H
                                });
                            }
                        });
                    },
                })

                // Attach click event listener to the delete buttons
                $('#itemDatatable tbody').on('click', '.delete-btn', function () {
                    const itemId = $(this).data('id'); 
                        self.deleteItem(itemId); 
                });

                $('#itemDatatable tbody').on('click', '.print-btn', function () {
                    const itemId = $(this).data('id');
                    var $row = $(this).closest('tr'); // get the row containing the button
                    var imageSrc = $row.find('img').attr('src'); // find the img element in the row and get its src
                    // console.log(imageSrc);
                    self.printItem(itemId, imageSrc);
                });

                this.loading = false;
            },

            async fetchItem() {
                try {
                    // const token = localStorage.getItem('token'); // Get the token from localStorage
                    const response = await fetch('/InvMainAPI/ItemList', {
                        method: 'POST', // Specify the HTTP method
                        headers: {
                            'Content-Type': 'application/json', // Set content type
                            // 'Authorization': `Bearer ${token}` // Include the token in the headers
                        }
                    });

                    if (!response.ok) {
                        throw new Error('Failed to fetch item');
                    }
                    this.items = await response.json();

                    this.initiateTable();
                } 
                catch (error) {
                    console.error('Error fetching item:', error);
                }
            },

            async fetchProducts() {
                try {
                    // const token = localStorage.getItem('token'); // Get the token from localStorage
                    const response = await fetch('/InvMainAPI/ProductList', {
                        method: 'POST', // Specify the HTTP method
                        headers: {
                            'Content-Type': 'application/json', // Set content type
                            // 'Authorization': `Bearer ${token}` // Include the token in the headers
                        }
                    });

                    if (!response.ok) {
                        throw new Error('Failed to fetch products');
                    }

                    this.products = await response.json(); 
                } 
                catch (error) {
                    console.error('Error fetching products:', error);
                }
            },

            async fetchCompanies() {
                try {
                    const response = await fetch('/InvMainAPI/CompanyDepartmentList', {
                        method: 'POST', // Specify the HTTP method
                        headers: {
                            'Content-Type': 'application/json'
                        }
                    });
                    if (!response.ok) {
                        throw new Error('Failed to fetch companies');
                    }

                    this.companies = await response.json();

                } catch (error) {
                    console.error('Error fetching products:', error);
                }
            },

            async fetchSuppliers() {
                try {
                    const response = await fetch('/InvMainAPI/SupplierList', {
                        method: 'POST', // Specify the HTTP method
                        headers: {
                            'Content-Type': 'application/json'
                        }
                    });
                    if (!response.ok) {
                        throw new Error('Failed to fetch suppliers');
                    }
                    this.suppliers = await response.json(); // Get the full response object

                } catch (error) {
                    console.error('Error fetching suppliers:', error);
                }
            },
            async fetchCurrencyData() {
                try {
                    // Fetch currency data from the API
                    const response = await fetch('https://openexchangerates.org/api/currencies.json'); // Example API
                    this.currencies = await response.json();
                } catch (error) {
                    console.error('Error fetching currency data:', error);
                }
            },
            convertCurrency() {
                // Your currency conversion logic here
                console.log('Selected currency:', this.currency);
            },
            resetForm() {
                this.company = '';
                this.Dept = null;
                this.productName = null;
                this.imageProduct = null;
                this.serialNumber = '';
                this.quantity = 0;
                this.supplierName = null;
                this.purchaseDate = null;
                this.PO = null;
                this.currency = null;
                this.priceInRM = null;
                this.currencyRate = null;
                this.convertPrice = null;
                this.DODate = null;
                this.warranty = null;
                this.EndWDate = null;
                this.invoiceDate = null;
                this.selectedProduct = "";
                this.selectedSupplier = "";
                this.selectedCompany = "";
                this.selectedDepartment = "";
            },

            // FRONT END FUNCTIONS
            //----------------------//
            //Calculate Total Price
            convertCurrency() {
                const total = this.priceInRM * this.currencyRate;
                this.convertPrice = total.toFixed(2);
                this.priceInRM = this.priceInRM
                    // .replace(/[^0-9.]/g, '') // Remove non-numeric characters except decimal points
                    // .replace(/(\..*)\..*/g, '$1') // Allow only one decimal point
                    // .replace(/^(\d*\.\d{0,2})\d*$/, '$1'); // Limit to two decimal places

            }, 
            calculateWarrantyEndDate() {
                // Check if DODate and warranty are valid
                if (!this.DODate || isNaN(Date.parse(this.DODate))) {
                    this.EndWDate = null;
                    return;
                }

                const DODates = new Date(this.DODate);
                const warrantyMonth = parseInt(this.warranty);

                // Ensure warranty is a valid number
                if (!isNaN(warrantyMonth)) {
                    DODates.setMonth(DODates.getMonth() + warrantyMonth);
                    this.EndWDate = DODates.toISOString().split('T')[0];
                } else {
                    this.EndWDate = null;
                }
            },
            async deleteItem(itemId) {
                if (!confirm("Are you sure you want to delete this item?")) {
                    return;
                }
                try {
                    const response = await fetch(`/InvMainAPI/DeleteProduct/${itemId}`, {
                        method: 'DELETE',
                        headers: {
                            'Content-Type': 'application/json',
                        },
                    });
                    const result = await response.json();

                    if (result.success) {
                        alert(result.message);
                        // Remove the row from DataTables
                        this.itemDatatable
                            .row($(`.delete-btn[data-id="${itemId}"]`).closest('tr'))
                            .remove()
                            .draw();
                    } else {
                        alert(result.message);
                    }
                } 
                catch (error) {
                    console.error("Error deleting item:", error);
                        alert("An error occurred while deleting the item.");
                }
                finally {
                    this.loading = false;
                }
            },
            async generateItemQr(itemId) {
                try {
                    // Clear any existing QR code in the container
                    const container = document.getElementById(QrContainer);
                    if (!container) {
                        console.error(`Container with ID ${containerId} not found.`);
                        return;
                    }
                    // Clear any existing QR code in the container
                    container.innerHTML = '';

                    // Generate the QR code
                    new QRCode(container, {
                        text: itemId,
                        width: 128,
                        height: 128,
                        colorDark: "#000000",
                        colorLight: "#ffffff",
                        correctLevel: QRCode.CorrectLevel.H
                    });

                } 
                catch (error) {
                    console.error("Error generating QR code:", error);
                    alert("An error occurred while generating the QR code.");
                }
            },
            async printItem(itemId, imgSrc) {
                try {
                    this.thisQR = itemId;
                    const container = document.getElementById("QrContainer");
                    if (!container) {
                        console.error(`Container not found.`);
                        return;
                    }
                    container.innerHTML = `<img src="${imgSrc}" alt="Alternate Text" class="text-center img-fluid" />`;
                    $(`#QrItemModal`).modal('show');
                } 
                catch (error) {
                    console.error("Error generating QR code:", error);
                    alert("An error occurred while generating the QR code.");
                }
            },
        },
    });
</script>
}