<?php

/*
 * functions that are directly available in WordPress themes (and plugins)
 */

/**
 * return ad content
 *
 * @since 1.0.0
 * @param int $id id of the ad (post)
 * @param arr $args additional arguments
 */
function get_ad($id = 0, $args = array()){
	$id = absint( $id );
	if ( empty($id) ) { return; }

        if(!advads_can_display_ads()) return;

	// get ad
	$ad = new Advads_Ad( $id, $args );

	// check conditions
	if ( $ad->can_display() ) {
		return $ad->output(); }
}

/**
 * echo an ad
 *
 * @since 1.0.0
 * @param int $id id of the ad (post)
 * @param arr $args additional arguments
 */
function the_ad($id = 0, $args = array()){

	echo get_ad( $id, $args );

}

/**
 * return an ad from an ad group based on ad weight
 *
 * @since 1.0.0
 * @param int $id id of the ad group (taxonomy)
 *
 */
function get_ad_group($id = 0){
	$id = absint( $id );
	if ( empty($id) ) { return; }

        if(!advads_can_display_ads()) return;

	// get ad
	$adgroup = new Advads_Ad_Group( $id );
	return $adgroup->output();
}

/**
 * echo an ad from an ad group
 *
 * @since 1.0.0
 * @param int $id id of the ad (post)
 */
function the_ad_group($id = 0){

	echo get_ad_group( $id );

}

/**
 * return content of an ad placement
 *
 * @since 1.1.0
 * @param string $id slug of the ad placement
 *
 */
function get_ad_placement($id = ''){
	if ( $id == '' ) { return; }

        if(!advads_can_display_ads()) return;

	// get placement content
	$output = Advads_Ad_Placements::output( $id );
	return $output;
}

/**
 * return content of an ad placement
 *
 * @since 1.1.0
 * @param string $id slug of the ad placement
 */
function the_ad_placement($id = ''){

	echo get_ad_placement( $id );

}

/**
 * return true if ads can be displayed
 *
 * @since 1.4.9
 * @return bool, true if ads can be displayed
 */
function advads_can_display_ads(){
    return Advanced_Ads::get_instance()->can_display_ads();
}