Sindbad~EG File Manager

<?php namespace TierPricingTable;

use TierPricingTable\Admin\ProductPage\AdvanceOptionsForVariableProduct;
use TierPricingTable\Admin\ProductPage\TieredPricingTab;
use TierPricingTable\Core\ServiceContainerTrait;
use TierPricingTable\Settings\Sections\GeneralSection\GeneralSection;
use WC_Product;
use WC_Product_Variable;
use WC_Product_Variation;

class PricingTable {
	
	use ServiceContainerTrait;
	
	private static $instance;
	
	private function __construct() {}
	
	public static function getInstance(): self {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		
		return self::$instance;
	}
	
	/**
	 * Main function for rendering pricing table for product
	 *
	 * @param  int  $parentProductID
	 * @param  int  $variationID
	 * @param  array  $settings
	 */
	public function renderPricingTable( $parentProductID = 0, $variationID = null, array $settings = array() ) {
		
		$parentProduct = wc_get_product( $parentProductID );
		
		if ( ! $parentProduct ) {
			return;
		}
		
		if ( ! $this->productHasPricingRules( $parentProduct ) ) {
			return;
		}
		
		$settings = wp_parse_args( $settings, $this->getDefaultSettings( $parentProductID ) );
		
		// If the product is variable, but no concrete variation is passed - check for default
		if ( ! $variationID && in_array( $parentProduct->get_type(),
				TierPricingTablePlugin::getSupportedVariableProductTypes() ) ) {
			$defaultVariationId = $this->getDefaultVariation( $parentProduct );
			
			$variationID = $defaultVariationId ? $defaultVariationId : null;
		}
		
		// Variation if exists. If not the parent product should be used
		$productId = $variationID ? $variationID : $parentProduct->get_id();
		$product   = wc_get_product( $productId );
		
		$supportedTypes = array_merge( TierPricingTablePlugin::getSupportedSimpleProductTypes(),
			TierPricingTablePlugin::getSupportedVariableProductTypes() );
		
		// Exit if product is not valid
		if ( ! $product || ! in_array( $parentProduct->get_type(), $supportedTypes ) ) {
			return;
		}
		
		$settings = apply_filters( 'tiered_pricing_table/display_settings', $settings, $productId );
		
		if ( 'tooltip' === $settings['display_type'] ) {
			wp_enqueue_script( 'jquery-ui-tooltip' );
		}
		
		$hidden = ( 'tooltip' === $settings['display_type'] || ! $settings['display'] );
		
		do_action( 'tiered_pricing_table/before_rendering_tiered_pricing', $parentProduct, $variationID, $settings );
		?>
		<div class="clear"></div>
		<div class="tpt__tiered-pricing <?php echo esc_attr( $hidden ? 'tpt__hidden' : '' ); ?>"
			 data-settings="<?php echo esc_attr( json_encode( $settings ) ); ?>"
			 data-display-type="<?php echo esc_attr( $settings['display_type'] ); ?>"
			 data-product-type="<?php echo esc_attr( $parentProduct->get_type() ); ?>">
			<?php $this->renderPricingTableHTML( $parentProduct, $product, $settings ); ?>
		</div>
		<?php
	}
	
	/**
	 * Render pricing table without wrapper
	 *
	 * @param  WC_Product  $parentProduct
	 * @param  WC_Product  $product
	 * @param  array  $settings
	 */
	public function renderPricingTableHTML( WC_Product $parentProduct, WC_Product $product, $settings = array() ) {
		
		$settings = wp_parse_args( $settings, $this->getDefaultSettings( $parentProduct->get_id() ) );
		
		// Don't get rules from variable product when variation is empty
		if ( in_array( $parentProduct->get_type(),
				TierPricingTablePlugin::getSupportedVariableProductTypes() ) && ! ( $product instanceof WC_Product_Variation ) ) {
			// Empty rule
			$priceRule = new PricingRule( $product->get_id() );
		} else {
			$priceRule = PriceManager::getPricingRule( $product->get_id() );
		}
		
		// If rules are not empty
		if ( ! empty( $priceRule->getRules() ) ) {
			
			$displayType = $settings['display_type'];
			
			$templateType = in_array( $displayType, array(
				'blocks',
				'table',
				'options',
				'dropdown',
				'tooltip',
				'horizontal-table',
			) ) ? $displayType : 'table';
			
			if ( 'tooltip' === $displayType ) {
				$templateType = 'table';
			}
			
			$template = "tiered-pricing-${templateType}.php";
			
			do_action( 'tiered_pricing_table/before_rendering_tiered_pricing/inner', $priceRule, $product, $settings );
			
			$this->checkForDuplicateQuantities( $priceRule );
			
			$this->getContainer()->getFileManager()->includeTemplate( 'frontend/' . $template, array(
				'pricing_rule' => $priceRule,
				'price_rules'  => $priceRule->getRules(),
				'real_price'   => $product->get_price(),
				'product_name' => $product->get_name(),
				'product_id'   => $product->get_id(),
				'product'      => $product,
				'minimum'      => $priceRule->getMinimum(),
				'settings'     => $settings,
				'pricing_type' => $priceRule->getType(),
				'id'           => $this->getUniqueTieredPricingId(),
			) );
		}
	}
	
	protected function getDefaultSettings( $productId = false ): array {
		$settings = array(
			'display'               => $this->getContainer()->getSettings()->get( 'display', 'yes' ) === 'yes',
			'display_type'          => $this->getContainer()->getSettings()->get( 'display_type', 'table' ),
			'title'                 => $this->getContainer()->getSettings()->get( 'table_title', '' ),
			'table_class'           => $this->getContainer()->getSettings()->get( 'table_css_class', '' ),
			'quantity_column_title' => $this->getContainer()->getSettings()->get( 'head_quantity_text',
				__( 'Quantity', 'tier-pricing-table' ) ),
			'price_column_title'    => $this->getContainer()->getSettings()->get( 'head_price_text',
				__( 'Price', 'tier-pricing-table' ) ),
			'discount_column_title' => $this->getContainer()->getSettings()->get( 'head_discount_text',
				__( 'Discount (%)', 'tier-pricing-table' ) ),
			'quantity_type'         => $this->getContainer()->getSettings()->get( 'quantity_type', 'range' ),
			'show_discount_column'  => $this->getContainer()->getSettings()->get( 'show_discount_column',
					'yes' ) === 'yes',
			'clickable_rows'        => $this->getContainer()->getSettings()->get( 'clickable_table_rows',
					'yes' ) === 'yes',
			'active_tier_color'     => $this->getContainer()->getSettings()->get( 'selected_quantity_color',
				'#96598A' ),
			'tooltip_border'        => $this->getContainer()->getSettings()->get( 'tooltip_border', 'yes' ) === 'yes',
			
			'options_show_total'                  => GeneralSection::isShowOptionTotal(),
			'options_show_original_product_price' => GeneralSection::isShowOriginalProductPrice(),
			'options_show_default_option'         => GeneralSection::isDefaultOptionEnabled(),
			
			'options_default_option_text' => GeneralSection::getDefaultOptionText(),
			'options_option_text'         => GeneralSection::getOptionText(),
			
			'update_price_on_product_page'  => $this->getContainer()->getSettings()->get( 'update_price_on_product_page',
					'yes' ) === 'yes',
			'show_tiered_price_as_discount' => $this->getContainer()->getSettings()->get( 'show_tiered_price_as_discount',
					'yes' ) === 'yes',
			'show_total_price'              => $this->getContainer()->getSettings()->get( 'show_total_price',
					'no' ) === 'yes',
		);
		
		$default_quantity_measurement = array(
			'singular' => '',
			'plural'   => '',
		);
		
		$quantity_measurement = $default_quantity_measurement;
		
		if ( in_array( $settings['display_type'], array( 'table', 'horizontal-table', 'tooltip' ) ) ) {
			$quantity_measurement = $this->getContainer()->getSettings()->get( 'table_quantity_measurement',
				$default_quantity_measurement );
		}
		
		if ( 'blocks' === $settings['display_type'] ) {
			$quantity_measurement = $this->getContainer()->getSettings()->get( 'blocks_quantity_measurement', array(
				'singular' => _n( 'piece', 'pieces', 1, 'tier-pricing-table' ),
				'plural'   => _n( 'piece', 'pieces', 2, 'tier-pricing-table' ),
			) );
		}
		
		$settings['quantity_measurement_singular'] = $quantity_measurement['singular'];
		$settings['quantity_measurement_plural']   = $quantity_measurement['plural'];
		
		if ( $productId ) {
			$template = TieredPricingTab::getProductTemplate( $productId );
			
			if ( 'default' !== $template ) {
				$settings['display_type'] = $template;
			}
			
			$baseUnitName = TieredPricingTab::getProductBaseUnitName( $productId );
			
			if ( $baseUnitName['singular'] && $baseUnitName['plural'] ) {
				$settings['quantity_measurement_singular'] = $baseUnitName['singular'];
				$settings['quantity_measurement_plural']   = $baseUnitName['plural'];
			}
		}
		
		return $settings;
	}
	
	protected function getUniqueTieredPricingId() {
		return preg_replace( '/[0-9]+/', '', strtolower( wp_generate_password( 20, false ) ) );
	}
	
	protected function getDefaultVariation( WC_Product_Variable $product ) {
		
		$defaultVariation = AdvanceOptionsForVariableProduct::getDefaultVariation( $product->get_id() );
		
		if ( $defaultVariation ) {
			return $defaultVariation->get_id();
		}
		
		$cached = $this->getContainer()->getCache()->getProductData( $product, 'default_variation_id' );
		
		if ( false !== $cached ) {
			return $cached;
		}
		
		$variation_id         = 0;
		$is_default_variation = false;
		
		foreach ( $product->get_available_variations() as $variation_values ) {
			foreach ( $variation_values['attributes'] as $key => $attribute_value ) {
				$attribute_name = str_replace( 'attribute_', '', $key );
				$default_value  = $product->get_variation_default_attribute( $attribute_name );
				if ( $default_value == $attribute_value ) {
					$is_default_variation = true;
				} else {
					$is_default_variation = false;
					break;
				}
			}
			if ( $is_default_variation ) {
				$variation_id = $variation_values['variation_id'];
				break;
			}
		}
		
		$this->getContainer()->getCache()->setProductData( $product, 'default_variation_id', $variation_id );
		
		return $variation_id ? $variation_id : false;
	}
	
	public function productHasPricingRules( WC_Product $product ): bool {
		
		if ( TierPricingTablePlugin::isSimpleProductSupported( $product ) ) {
			$pricingRule = PriceManager::getPricingRule( $product->get_id() );
			
			return ! empty( $pricingRule->getRules() );
		}
		
		if ( TierPricingTablePlugin::isVariableProductSupported( $product ) && $product instanceof WC_Product_Variable ) {
			
			// Do not check if product has tiered pricing for variable product by default.
			// If variable product has many variation - it can take many resources to check every variation for rules existing.
			// The downside is that the plugin will send an AJAX request for each variant selection on the product page even if product does not have any tiered pricing
			if ( ! apply_filters( 'tiered_pricing_table/check_if_variable_product_has_rules', false, $product ) ) {
				return true;
			}
			
			$hasTieredPricing = $this->getContainer()->getCache()->getProductData( $product, 'product_has_rules' );
			
			if ( 'no' === $hasTieredPricing ) {
				return false;
			}
			
			if ( 'yes' === $hasTieredPricing ) {
				return true;
			}
			
			foreach ( $product->get_available_variations() as $productVariation ) {
				$pricingRule = PriceManager::getPricingRule( $productVariation['variation_id'] );
				
				if ( ! empty( $pricingRule->getRules() ) ) {
					$this->getContainer()->getCache()->setProductData( $product, 'product_has_rules', 'yes' );
					
					return true;
				}
			}
			
			$this->getContainer()->getCache()->setProductData( $product, 'product_has_rules', 'no' );
		}
		
		return false;
	}
	
	public function checkForDuplicateQuantities( PricingRule $pricingRule ) {
		// Show notice only for admin users
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		$minimum           = $pricingRule->getMinimum();
		$pricingRules      = $pricingRule->getRules();
		$firstRuleQuantity = ! empty( $pricingRules ) ? array_keys( $pricingRules )[0] : false;
		
		if ( $firstRuleQuantity && $firstRuleQuantity <= $minimum ) {
			?>
			
			<div style="font-size: .8em;">
				<div class="woocommerce-error" role="alert" style="margin-bottom: 0">
					Duplicated quantities detected. Minimum order quantity is equal or higher than the first tiered
					pricing.
				</div>
				<div style="color: #555;
	padding: 10px 12px;
	border: 1px solid #b32c2e;
	background: #fff5f5;">
					<p style="padding: 0; margin: 0">
						The minimum order quantity must be less than the first tiered pricing rule quantity.
					</p>
					<p style="padding: 0; margin: 0"> The first tier always uses woocommerce price and is applied to
						quantities between minimum order
						quantity and
						the first tiered pricing rule quantity.
					</p>
					<br>
					<b>This notice shown only for administrators.</b>
				</div>
			</div>
			<?php
		}
	}
}