Add woocommerce product from font-end, Full width Layout (User must be logged in).

add_new_product.php

<?php

/**
 * Template Name: Add Product Full width Page.
 * Description: Add woocommerce product from font-end, Full width Layout (User must be logged in).
 * Author: Rocky Mehta
 * Link: https://rocky-mehta.com/
 * Email: rocky.mehta88@gmail.com
*/

wp_head();


	if(!is_user_logged_in()){
		wp_redirect("my-account");
		exit;
	}

	require_once( ABSPATH . 'wp-admin/includes/image.php' );
	require_once( ABSPATH . 'wp-admin/includes/file.php' );
	require_once( ABSPATH . 'wp-admin/includes/media.php' );

	if( isset($_POST['submit']) ) {
		$product_title         = $_POST['product_title'];
		$description           = $_POST['description'];
		$_regular_price        = $_POST['_regular_price'];
		$featured              = $_POST['is_featured'];
		$product_cat           = $_POST['product_cat'];
		$product_tag           = $_POST['product_tag'];

		// Add the content of the form to $post as an array
		$post_data = array(
			'post_title'   => $product_title,
			'post_content' => $description,
			'post_author'  => get_current_user_id(),
			'post_status'  => 'draft',
			'post_type'	   => 'product'
		);

		$my_post_id = wp_insert_post($post_data);

		update_post_meta($my_post_id, '_regular_price', $_regular_price);
		update_post_meta($my_post_id, '_featured', $featured);

		wp_set_post_terms( $my_post_id, array($product_cat), 'product_cat' );
		wp_set_post_terms( $my_post_id, array($product_tag), 'product_tag' );

		$attachment_id = media_handle_upload( 'my_image_upload', $my_post_id );
		set_post_thumbnail( $my_post_id, $attachment_id );

		$files = $_FILES["kv_multiple_attachments"];  
		foreach ($files['name'] as $key => $value) {
			if ($files['name'][$key]) { 
				$file = array( 
					'name' => $files['name'][$key],
					'type' => $files['type'][$key], 
					'tmp_name' => $files['tmp_name'][$key], 
					'error' => $files['error'][$key],
					'size' => $files['size'][$key]
				); 
				$_FILES = array ("kv_multiple_attachments" => $file); 
				foreach ($_FILES as $file => $array) {
					$newupload = kv_handle_attachment($file,$my_post_id);
					$img_arr[] = $newupload;
				}
			}
		}

		update_post_meta( $my_post_id, '_product_image_gallery', implode(',', $img_arr) );

		$headers = "From: " . get_bloginfo( 'name' ) . " <rocky.mehta88@gmail.com>" . "\r\n\\";

		$subject = sprintf( __( '[%s] New Product Added', 'wpuf' ), get_bloginfo( 'name' ) );

		$msg = sprintf( __( 'New product added at %s', 'wpuf' ), get_bloginfo( 'name' ) );

		$msg .= "Name: ".$product_title."\r\n\\";
		$msg .= "Category: ".$product_cat."\r\n\\";
		$msg .= "Tag: ".$product_tag."\r\n\\";
		$msg .= "Price: ".$_regular_price."\r\n\\";
		$msg .= "Featured: ".$featured."\r\n\\";

        $receiver = get_bloginfo( 'admin_email' );

        wp_mail( $receiver, $subject, $msg, $headers );

	} ?>

	<article <?php post_class();?>>
		<header class="entry-header">
			<h1 class="entry-title" itemprop="headline">Add Product</h1> 
		</header>
		<div class="entry-content add_product_page" itemprop="text">
			<form class="wpuf-form-add" action="" method="post" enctype="multipart/form-data">
				<ul class="wpuf-form">
					<li class="wpuf-el product_title" data-label="Product Title">
						<div class="wpuf-label">
							<label for="product_title">Product Title 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields">
							<input required class="textfield wpuf_post_title" id="product_title" type="text" data-required="yes" data-type="text" name="product_title" placeholder="" value="" size="40">
						</div>
					</li>
					<li class="wpuf-el _regular_price" data-label="Price">
						<div class="wpuf-label">
							<label for="_regular_price">Price 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields">
							<input required class="textfield wpuf__regular_price" id="_regular_price" type="text" data-required="yes" data-type="text" name="_regular_price" placeholder="" value="" size="10">
								<span class="wpuf-help">Price in Dollar.</span>
						</div>
					</li>
					<li class="wpuf-el description" data-label="description">
						<div class="wpuf-label">
							<label for="my_image_upload">Image 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields">
							<input required type="file" name="my_image_upload" id="my_image_upload" />
							<span class="wpuf-wordlimit-message wpuf-help"></span>
						</div>
					</li>
					<li class="wpuf-el description" data-label="description">
						<div class="wpuf-label">
							<label for="kv_multiple_attachments"> Product Gallery 
								<span class="required"></span>
							</label>
						</div>
						<div class="wpuf-fields">
							<input type="file" name="kv_multiple_attachments[]" id="kv_multiple_attachments" multiple="multiple" />
							<span class="wpuf-wordlimit-message wpuf-help"></span>
						</div>
					</li>
					<li class="wpuf-el product_tag" data-label="Product Tag">
						<div class="wpuf-label">
							<label for="product_tag">Product Tag 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields wpuf_product_tag_select">
							<select required data-required="yes" data-type="select" name="product_tag" id="product_tag" class="product_tag wpuf_category_122">
								<option value="">— Select —</option>
								<?php
									$tags = get_terms( 'product_tag' );
									if ( ! empty( $tags ) && ! is_wp_error( $tags ) ) {
										foreach ( $tags as $tag ) {
											if(in_array($tag->name,$tags_list)){
												?><option value="<?php echo $tag->name;?>" selected><?php echo $tag->name;?></option><?php
											} else {
												?><option value="<?php echo $tag->name;?>"><?php echo $tag->name;?></option><?php
											}
										}
									}
								?>
							</select>
						</div>
                   			 </li>
                   			 <li class="wpuf-el category" data-label="Product Categories">
						<div class="wpuf-label">
							<label for="product_cat">Product Categories 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields wpuf_category_select">
							<select required data-required="yes" data-type="select" name="product_cat" id="product_cat" class="product_cat">
							<option value="">— Select —</option>
							<?php 
								$terms = get_terms( 'product_cat' );
								if ( ! empty( $terms ) && ! is_wp_error( $terms ) ){
									foreach ( $terms as $term ) {
										?><option value="<?php echo $term->term_id;?>"><?php echo $term->name;?></option><?php
									}
								}
								?>
							</select>
						</div>
                   			 </li>
					<li class="wpuf-el description" data-label="description">
						<div class="wpuf-label">
							<label for="description">Description 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields">
							<textarea class="textareafield" id="description" name="description" data-required="yes" data-type="textarea" placeholder="" rows="5" cols="10"></textarea>
							<span class="wpuf-wordlimit-message wpuf-help"></span>
						</div>					   
					</li>
					<li class="wpuf-el delivery" data-label="is_featured">
						<div class="wpuf-label">
							<label for="is_featured_no">Is Featured Product? 
								<span class="required">*</span>
							</label>
						</div>
						<div class="wpuf-fields">
							<input class="radiofield" name="is_featured" id="is_featured_yes" type="radio" value="Yes" /><label>Yes</label>
							<input class="radiofield" name="is_featured" id="is_featured_no" type="radio"  value="No" checked="checked"/><label>No</label>
						</div>					   
					</li>
					<li class="wpuf-submit">
						<div class="wpuf-label">
						&nbsp;
						</div>
						<input type="submit" name="submit" value="Save Product">
					</li>
				</ul>
			</form>
		</div>
	</article>
	<?php

}


// Add multiple image function
function kv_handle_attachment($file_handler, $my_post_id) {

	$attach_id = media_handle_upload( $file_handler, $my_post_id );
	return $attach_id;

}

wp_footer();