Do not copy history on product duplicate (#60)

Fixes #50

app/PriorPrice/HistoryStorage.php

@@ -140,6 +140,23 @@ public function add_price( int $product_id, float $new_price, bool $on_change_on
 		return $this->save_history( $product_id, $history );
 	}
 
+	/**
+	 * Add first price to the history.
+	 *
+	 * @since 1.7.4
+	 *
+	 * @param int   $product_id Product ID.
+	 * @param float $price      Price.
+	 *
+	 * @return int
+	 */
+	public function add_first_price( int $product_id, float $price ) {
+
+		$history[ $this->get_time_with_offset() ] = $price;
+
+		return $this->save_history( $product_id, $history );
+	}
+
 	/**
 	 * Add price to the history at given timestamp.
 	 *

app/PriorPrice/ProductUpdates.php

@@ -21,7 +21,8 @@ public function __construct( HistoryStorage $history_storage ) {
 	 */
 	public function register_hooks(): void {
 
-		add_action( 'woocommerce_new_product', [ $this, 'update_price_history' ] );
+		add_action( 'woocommerce_new_product', [ $this, 'start_price_history' ] );
+		add_action( 'woocommerce_new_product_variation', [ $this, 'start_price_history' ] );
 		add_action( 'woocommerce_update_product', [ $this, 'update_price_history' ] );
 		add_action( 'woocommerce_save_product_variation', [ $this, 'update_price_history' ] );
 	}
@@ -39,4 +40,18 @@ public function update_price_history( int $product_id ): void {
 
 		$this->history_storage->add_price( $product_id, (float) $product_price, true );
 	}
+
+	/**
+	 * Start price history.
+	 *
+	 * @since 1.7.4
+	 *
+	 * @param int $product_id Product ID.
+	 */
+	public function start_price_history( int $product_id ): void {
+
+		$product_price = get_post_meta( $product_id, '_price', true );
+
+		$this->history_storage->add_first_price( $product_id, (float) $product_price );
+	}
 }

readme.txt

@@ -106,7 +106,8 @@ Please submit the [GitHub issue](https://github.com/kkarpieszuk/wc-price-history
 
 = 1.7.4 =
 * Improvement: Start saving the price before change with timestamps for last midnight and for 1 second ago. (#58)
-* Improvement: Clean history from empty values vefore save.
+* Improvement: Clean history from empty values before save.
+* Fixed: Do not copy product price history when duplicating product. (#50)
 
 = 1.7.3 =
 * Fixed: When price displayed with shortcode, it was not respecting sale settings and it resulted in showing the current price.