@{
    ViewData["Title"] = "Product Form";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

@await Html.PartialAsync("~/Areas/Inventory/Views/_InventoryPartial.cshtml");
<div id="registerProduct" class="card m-1">
    <form v-on:submit.prevent="addProduct" data-aos="fade-right">
        <div class="container register" data-aos="fade-right">
            <div class="row" data-aos="fade-right">
                <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">
                            <div class="card-header">
                                <h3 class="register-heading">REGISTRATION PRODUCT</h3>
                            </div>
                            <div class="row register-form card-body">
                                <div class="col-md-6">

                                    @* Product Name *@
                                    <div class="form-group row">
                                        <label for="productName" class="col-sm-3">Product Name:</label>
                                        <div class="col-sm-9">
                                            <input type="text" id="productName" name="productName" class="form-control" required v-model="productName">
                                        </div>
                                    </div>

                                    @* Manufacturer *@
                                    <div class="form-group row">
                                        <label class="col-sm-3">Manufacturer:</label>
                                        <div class="col-sm-9">
                                            <div class="">
                                                <select class="btn btn-primary form-select" v-model="manufacturer" required>
                                                    <option class="btn-light" value="" selected disabled>Select Manufacturer</option>
                                                    <option class="btn-light" v-for="(item, index) in manufacturers" :key="item.manufacturerId" :value="item.manufacturerId">{{ item.manufacturerName ?? 'Select Manufacturer' }}</option>
                                                </select>
                                            </div>
                                        </div>
                                    </div>

                                    @* Category *@
                                    <div class="form-group row">
                                        <label class="col-sm-3">Category:</label>
                                        <div class="col-sm-9">
                                            <div class="">
                                                <select class="btn btn-primary form-select" v-model="category" required>
                                                    <option class="btn-light" value="" selected disabled>Select Category</option>
                                                    <option class="btn-light" v-for="(item, index) in categories" :key="item" :value="item">{{ item ?? 'Select Category'  }}</option>
                                                </select>
                                            </div>
                                        </div>
                                    </div>

                                </div>
                                <div class="col-md-6">

                                    @* Model No Coding *@
                                    <div class="form-group row">
                                        <label for="modelNo" class="col-sm-3">Model No:</label>
                                        <div class="col-sm-9">
                                            <input type="text" id="modelNo" name="modelNo" class="form-control" required v-model="modelNo">
                                        </div>
                                    </div>

                                    @* Min Quantity Coding *@
                                    <div class="form-group row">
                                        <label for="quantityProduct" class="col-sm-3">Quantity:</label>
                                        <div class="col-sm-9">
                                            <input type="number" id="quantityProduct" name="quantityProduct" class="form-control" min="0" required v-model="quantityProduct">
                                        </div>
                                    </div>

                                    @* Image Product Coding *@
                                    <div class="form-group row">
                                        <label for="imageProduct" class="col-sm-3">Image:</label>
                                        <div class="col-sm-9">
                                            <input type="file" id="imageProduct" name="imageProduct" class="form-control" v-on:change="previewImage" accept="image/*" required>
                                            <br>
                                            <img v-if="imageSrc" :src="imageSrc" alt="Image Preview" class="img-thumbnail" style="width: 200px; margin-top: 10px;" />
                                        </div>
                                    </div>

                                </div>
                                <div class="form-group row">
                                    <div class="col-sm-9 offset-sm-3">
                                        <button type="button" v-on:click="resetForm" class="btn btn-secondary">Reset</button>
                                        <input type="submit" class="btn btn-primary">
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </form>
</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
<script>
    new Vue({
        el: '#registerProduct',
        data: {
            productName: null,
            manufacturer: '',
            manufacturers: null,
            category: '',
            categories: ["Item", "Part", "Disposable"],
            modelNo: null,
            quantityProduct: null,
            imageProduct: null,
            manufactures: [],
            showOtherManufacturer: false,
            imageSrc: '',
        },
        mounted() {
            // Fetch companies, depts, and products from the API
            this.fetchManufactures();
            this.fetchProducts();
        },
        methods: {
            async fetchManufactures() {
                try {
                    const response = await fetch('/api/Product/GetManufactures'); // Call the API
                    if (!response.ok) {
                        throw new Error('Failed to fetch manufactures');
                    }
                    const data = await response.json(); // Get the full response object
                    this.manufactures = data.manufacturer; // Extract the 'manufacturer' array
                } catch (error) {
                    console.error('Error fetching manufactures:', error);
                }
            },
            async fetchProducts() {
                try {
                    const response = await fetch('/api/Product/GetProducts'); // Call the API
                    if (!response.ok) {
                        throw new Error('Failed to fetch products');
                    }
                    this.products = await response.json(); // Store the fetched products
                } catch (error) {
                    console.error('Error fetching products:', error);
                }
            },
            async addProduct() {
                const existingProduct = this.products.find(p => p.modelNo === this.modelNo);
                if (existingProduct) {
                    swal('Product Error', `The model number ${this.modelNo} already exists.`, 'error');
                    return; // Exit early if the modelNo exists
                }

                // Create the payload
                const formData = {
                    productName: this.productName,
                    manufacturer: this.manufacturer,
                    category: this.category,
                    modelNo: this.modelNo,
                    quantityProduct: this.quantityProduct,
                    imageProduct: this.imageProduct
                };

                try {
                    // List of required fields
                    const requiredFields = ['productName', 'manufacturer', 'category', 'modelNo', 'quantityProduct', 'imageProduct'];

                    // Loop through required fields and check if any are null or empty
                    for (let field of requiredFields) {
                        if (this[field] === null || this[field] === '') {
                            swal('Product Error', `Please fill in required fields: ${field}.`, 'warning');
                            return; // Exit early if validation fails
                        }
                    }

                    // Proceed to send the data as raw JSON string
                    const response = await fetch('/api/Product', {
                        method: 'POST',
                        headers: {
                            'Content-Type': 'application/json'
                        },
                        body: JSON.stringify(formData) // Convert the formData to a JSON string
                    });

                    if (!response.ok) {
                        const errorData = await response.json();
                        console.error('Error response:', errorData);
                        this.errorMessage = 'Error: ' + (errorData.message || 'Unknown error');

                    } else {
                        swal('Success!', 'Product form has been successfully submitted.', 'success');
                        this.resetForm();
                    }

                } catch (error) {
                    console.error('Error:', error);
                    swal('Product Error', `An error occurred: ${error.message}`, 'error');
                }
            }
            ,
            resetForm() {
                this.productName = null;
                this.manufacturer = '';
                this.category = null;
                this.modelNo = null;
                this.quantityProduct = null;
                this.imageProduct = null;
                this.imageSrc = '';
                const fileInput = document.getElementById('imageProduct');
                if (fileInput) {
                    fileInput.value = ''; // Clear the file input value
                }
            },

            // Update Select View
            updateManufacturer(manufacturer) {
                this.manufacturer = manufacturer;
                this.showOtherManufacturer = false;
            },
            updateCategory(category) {
                this.category = category;
            },

            // When User Presses Button Other
            toggleOtherInput(type) {
                if (type === 'manufacturer') {
                    this.showOtherManufacturer = true;
                }
            },

            // User Inserting an Image
            previewImage(event) {
                const file = event.target.files[0];

                if (file) {
                    const reader = new FileReader();
                    reader.onload = (e) => {
                        this.imageSrc = e.target.result; // Show the image preview
                        this.imageProduct = e.target.result.split(',')[1]; // Get Base64 string (remove metadata)
                    };
                    reader.readAsDataURL(file);
                } else {
                    this.imageSrc = '';
                    this.imageProduct = null;
                }
            },
            async fetchManufactures() {
                    fetch('/InvMainAPI/ManufacturerList', {
                            method: 'POST'
                        })
                        .then(response => response.json())
                        .then(data => {
                            console.log(data);
                            if (data != null && data.length > 0)
                            {
                                this.manufacturers = data;
                            }
                        })
                        .catch(error => {
                            console.error('There was a problem with the fetch operation:', error);
                        });

                },
        }
    });
</script>