<?php
/**
 * Easy Digital Downloads context provider for Botshido.
 *
 * @package Botshido
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Return whether the EDD integration is enabled.
 *
 * @return bool
 */
function ninjaibot_edd_integration_enabled() {
    // TODO: Deferred to the project roadmap; ignore saved options until reimplemented.
    // 	return (bool) get_option( 'ninjaibot_edd_integration_enabled', 0 );
    return false;
}

/**
 * Query EDD downloads relevant to a user query and return formatted context.
 *
 * @param string $query       Last user message.
 * @param int    $max_results Maximum downloads to include (default 5).
 * @return string
 */
function ninjaibot_get_edd_context( $query, $max_results = 5 ) {
	if ( ! ninjaibot_edd_integration_enabled() ) {
		return '';
	}

	if ( ! function_exists( 'edd_get_download_price' ) ) {
		return '';
	}

	$query = sanitize_text_field( (string) $query );
	if ( '' === $query ) {
		return '';
	}

	$max_results = max( 1, min( 10, (int) $max_results ) );

	foreach ( ninjaibot_integration_search_queries( $query ) as $search_query ) {
		$wp_query = new WP_Query( array(
			's'              => $search_query,
			'has_password'   => false,
			'post_type'      => 'download',
			'post_status'    => 'publish',
			'posts_per_page' => $max_results,
			'no_found_rows'  => true,
		) );
		if ( $wp_query->have_posts() ) { break; }
	}

	if ( ! $wp_query->have_posts() ) {
		return '';
	}

	$lines = array( 'Digital downloads relevant to the query:' );

	foreach ( $wp_query->posts as $post ) {
		$title = get_the_title( $post );
		$url   = esc_url( get_permalink( $post ) );
		$price = edd_get_download_price( $post->ID );

		if ( function_exists( 'edd_has_variable_prices' ) && edd_has_variable_prices( $post->ID ) ) {
			$price_text = 'Variable pricing; see product page';
		} elseif ( function_exists( 'edd_is_free_download' ) && edd_is_free_download( $post->ID ) ) {
			$price_text = 'Free';
		} elseif ( false !== $price ) {
			$price_text = function_exists( 'edd_currency_filter' )
				? wp_strip_all_tags( edd_currency_filter( edd_format_amount( $price ) ) )
				: (string) $price;
		} else {
			$price_text = 'Variable pricing';
		}

		$short_desc = wp_strip_all_tags( get_the_excerpt( $post ) );
		$short_desc = '' !== $short_desc ? wp_trim_words( $short_desc, 25, '…' ) : '';

		$line = "- {$title} | Price: {$price_text}";
		if ( '' !== $short_desc ) {
			$line .= " | {$short_desc}";
		}
		$line .= " | {$url}";

		$lines[] = $line;
	}

	wp_reset_postdata();

	if ( count( $lines ) <= 1 ) {
		return '';
	}

	return implode( "\n", $lines ) . "\n";
}