Set paid and completed dates based on order status

Author: mikkamp

includes/Generator/Order.php

@@ -85,7 +85,8 @@ public static function generate( $save = true, $assoc_args = array() ) {
 			$fee->calculate_taxes( $calculate_tax_for );
 			$order->add_item( $fee );
 		}
-    	$order->set_status( self::get_status( $assoc_args ) );
+		$status = self::get_status( $assoc_args );
+		$order->set_status( $status );
 		$order->calculate_totals( true );
 
 		$date  = self::get_date_created( $assoc_args );
@@ -104,6 +105,16 @@ public static function generate( $save = true, $assoc_args = array() ) {
 			OrderAttribution::add_order_attribution_meta( $order, $assoc_args );
 		}
 
+		// Set paid and completed dates based on order status.
+		if ( 'completed' === $status || 'processing' === $status ) {
+			// Add random 0 to 36 hours to creation date.
+			$date_paid = date( 'Y-m-d H:i:s', strtotime( $date ) + ( wp_rand( 0, 36 ) * HOUR_IN_SECONDS ) );
+			$order->set_date_paid( $date_paid );
+			if ( 'completed' === $status ) {
+				$order->set_date_completed( $date_paid );
+			}
+		}
+
 		if ( $save ) {
 			$order->save();
 		}