Moved directory structure to make it compatible for Packagist repository

Api/DiscountpercouponManagementInterface.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace OrviSoft\CouponPerProduct\Api;
+
+interface DiscountpercouponManagementInterface
+{
+
+    /**
+     * GET for Discountpercoupon api
+     * @param string $param
+     * @return string
+     */
+    public function getDiscountpercoupon($param);
+}

Block/Adminhtml/Coupons.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace OrviSoft\CouponPerProduct\Block\Adminhtml;
+
+class Coupons extends \Magento\Backend\Block\Widget\Container
+{
+    /**
+     * @var string
+     */
+    protected $_template = 'coupons/coupons.phtml';
+
+    /**
+     * @param \Magento\Backend\Block\Widget\Context $context
+     * @param array $data
+     */
+    public function __construct(\Magento\Backend\Block\Widget\Context $context,array $data = [])
+    {
+        parent::__construct($context, $data);
+    }
+
+    /**
+     * Prepare button and grid
+     *
+     * @return \Magento\Catalog\Block\Adminhtml\Product
+     */
+    protected function _prepareLayout()
+    {
+
+
+        $addButtonProps = [
+            'id' => 'add_new',
+            'label' => __('Add New'),
+            'class' => 'add',
+            'button_class' => '',
+            'class_name' => 'Magento\Backend\Block\Widget\Button\SplitButton',
+            'options' => $this->_getAddButtonOptions(),
+        ];
+        $this->buttonList->add('add_new', $addButtonProps);
+
+
+        $this->setChild(
+            'grid',
+            $this->getLayout()->createBlock('OrviSoft\CouponPerProduct\Block\Adminhtml\Coupons\Grid', 'orvisoft.coupons.grid')
+        );
+        return parent::_prepareLayout();
+    }
+
+    /**
+     *
+     *
+     * @return array
+     */
+    protected function _getAddButtonOptions()
+    {
+
+        $splitButtonOptions[] = [
+            'label' => __('Add New'),
+            'onclick' => "setLocation('" . $this->_getCreateUrl() . "')"
+        ];
+
+        return $splitButtonOptions;
+    }
+
+    /**
+     *
+     *
+     * @param string $type
+     * @return string
+     */
+    protected function _getCreateUrl()
+    {
+        return $this->getUrl(
+            'couponperproduct/*/new'
+        );
+    }
+
+    /**
+     * Render grid
+     *
+     * @return string
+     */
+    public function getGridHtml()
+    {
+        return $this->getChildHtml('grid');
+    }
+
+}

Block/Adminhtml/Coupons/Edit.php

@@ -0,0 +1,103 @@
+<?php
+
+namespace OrviSoft\CouponPerProduct\Block\Adminhtml\Coupons;
+
+class Edit extends \Magento\Backend\Block\Widget\Form\Container
+{
+    /**
+     * Core registry
+     *
+     * @var \Magento\Framework\Registry
+     */
+    protected $_coreRegistry = null;
+
+    /**
+     * @param \Magento\Backend\Block\Widget\Context $context
+     * @param \Magento\Framework\Registry $registry
+     * @param array $data
+     */
+    public function __construct(
+        \Magento\Backend\Block\Widget\Context $context,
+        \Magento\Framework\Registry $registry,
+        array $data = []
+    ) {
+        $this->_coreRegistry = $registry;
+        parent::__construct($context, $data);
+    }
+
+    /**
+     * Initialize coupons edit block
+     *
+     * @return void
+     */
+    protected function _construct()
+    {
+        $this->_objectId = 'id';
+        $this->_blockGroup = 'OrviSoft_CouponPerProduct';
+        $this->_controller = 'adminhtml_coupons';
+
+        parent::_construct();
+
+        $this->buttonList->update('save', 'label', __('Save Coupons'));
+        $this->buttonList->add(
+            'saveandcontinue',
+            [
+                'label' => __('Save and Continue Edit'),
+                'class' => 'save',
+                'data_attribute' => [
+                    'mage-init' => [
+                        'button' => ['event' => 'saveAndContinueEdit', 'target' => '#edit_form'],
+                    ],
+                ]
+            ],
+            -100
+        );
+
+        $this->buttonList->update('delete', 'label', __('Delete Coupons'));
+    }
+
+    /**
+     * Retrieve text for header element depending on loaded post
+     *
+     * @return \Magento\Framework\Phrase
+     */
+    public function getHeaderText()
+    {
+        if ($this->_coreRegistry->registry('coupons')->getId()) {
+            return __("Edit Coupons '%1'", $this->escapeHtml($this->_coreRegistry->registry('coupons')->getTitle()));
+        } else {
+            return __('New Coupons');
+        }
+    }
+
+    /**
+     * Getter of url for "Save and Continue" button
+     * tab_id will be replaced by desired by JS later
+     *
+     * @return string
+     */
+    protected function _getSaveAndContinueUrl()
+    {
+        return $this->getUrl('couponperproduct/*/save', ['_current' => true, 'back' => 'edit', 'active_tab' => '{{tab_id}}']);
+    }
+
+    /**
+     * Prepare layout
+     *
+     * @return \Magento\Framework\View\Element\AbstractBlock
+     */
+    protected function _prepareLayout()
+    {
+        $this->_formScripts[] = "
+            function toggleEditor() {
+                if (tinyMCE.getInstanceById('page_content') == null) {
+                    tinyMCE.execCommand('mceAddControl', false, 'content');
+                } else {
+                    tinyMCE.execCommand('mceRemoveControl', false, 'content');
+                }
+            };
+        ";
+        return parent::_prepareLayout();
+    }
+
+}

Block/Adminhtml/Coupons/Edit/Form.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace OrviSoft\CouponPerProduct\Block\Adminhtml\Coupons\Edit;
+
+/**
+ * Adminhtml coupons edit form block
+ *
+ * @author      Magento Core Team <core@magentocommerce.com>
+ */
+class Form extends \Magento\Backend\Block\Widget\Form\Generic
+{
+    /**
+     * Prepare form
+     *
+     * @return $this
+     */
+    protected function _prepareForm()
+    {
+        /** @var \Magento\Framework\Data\Form $form */
+        $form = $this->_formFactory->create(
+            ['data' => ['id' => 'edit_form', 'action' => $this->getData('action'), 'method' => 'post' , 'enctype' => 'multipart/form-data']]
+        );
+        $form->setUseContainer(true);
+        $this->setForm($form);
+        return parent::_prepareForm();
+    }
+}