<?php

/**
 * @param array $settings
 *
 * @return array|mixed|object
 * get Instagram images with token
 */
if ( ! function_exists( 'glaza_data_instagram_token' ) ) {
	function glaza_data_instagram_token( $settings = array() ) {

		$cache_name = 'glaza_instagram_cache';

		if ( ! empty( $settings['cache_id'] ) ) {
			$cache_id = $settings['cache_id'];
		} else {
			$cache_id = 0;
		}

		$cache_data = get_transient( $cache_name );
		if ( ! is_array( $cache_data ) ) {
			$cache_data = array();
		}

		if ( ! empty( $cache_data[ $cache_id ] ) ) {
			return $cache_data[ $cache_id ];
		} else {

			if ( empty( $settings['instagram_token'] ) ) {
				return esc_html__( 'empty Instagram token', 'glaza-core' );
			}

			$token = trim( $settings['instagram_token'] );
			if ( ! empty( $settings['total_images'] ) ) {
				$total = intval( $settings['total_images'] );
			} else {
				$total = 6;
			}

			$user = explode( ".", $token );

			if ( empty( $user[0] ) ) {
				return esc_html__( 'token error.', 'glaza-core' );
			} else {

				$params = array(
					'sslverify' => false,
					'timeout'   => 100
				);

				if ( ! empty( $settings['tag'] ) ) {
					$response = wp_remote_get( 'https://api.instagram.com/v1/tags/' . trim( $settings['tag'] ) . '/media/recent/?access_token=' . $token . '&count=' . $total, $params );
				} else {
					$response = wp_remote_get( 'https://api.instagram.com/v1/users/' . $user[0] . '/media/recent/?access_token=' . $token . '&count=' . $total, $params );
				}

				if ( is_wp_error( $response ) || empty( $response['response']['code'] ) || 200 != $response['response']['code'] ) {
					return esc_html__( 'Token expired or no pictures.', 'glaza-core' );
				};

				$data_images = json_decode( wp_remote_retrieve_body( $response ) );

				$cache_data[ $cache_id ] = $data_images;

				delete_transient( $cache_name );
				set_transient( $cache_name, $cache_data, 12000 );

				return $data_images;
			}
		}
	}
}


/**
 * @param array $settings
 *
 * @return mixed
 * get instagram images without token
 */
if ( ! function_exists( 'glaza_data_instagram_no_token' ) ) {
	function glaza_data_instagram_no_token( $settings = array() ) {

		$cache_name = 'glaza_instagram_cache';

		if ( ! empty( $settings['cache_id'] ) ) {
			$cache_id = $settings['cache_id'];
		} else {
			$cache_id = 0;
		}

		$cache_data = get_transient( $cache_name );

		if ( ! is_array( $cache_data ) ) {
			$cache_data = array();
		}

		if ( ! empty( $cache_data[ $cache_id ] ) ) {
			return $cache_data[ $cache_id ];
		} else {

			if ( empty( $settings['user_name'] ) ) {
				return false;
			}

			$user_name = trim( strtolower( $settings['user_name'] ) );
			switch ( substr( $user_name, 0, 1 ) ) {
				case '#':
					$url = 'https://instagram.com/explore/tags/' . str_replace( '#', '', $user_name );
					break;
				default:
					$url = 'https://instagram.com/' . str_replace( '@', '', $user_name );
					break;
			}

			$params = array(
				'sslverify' => false,
				'timeout'   => 100
			);

			$response = wp_remote_get( $url, $params );
			if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) ) {
				return esc_html__( 'Unable to connect to Instagram.', 'glaza-core' );
			}

			$response = explode( 'window._sharedData = ', $response['body'] );
			$response = explode( ';</script>', $response[1] );
			$response = json_decode( $response[0], true );

			if ( empty( $response ) ) {
				return esc_html__( 'invalid data.', 'glaza-core' );
			}

			if ( isset( $response['entry_data']['ProfilePage'][0]['graphql']['user']['edge_owner_to_timeline_media']['edges'] ) ) {
				$response = $response['entry_data']['ProfilePage'][0]['graphql']['user']['edge_owner_to_timeline_media']['edges'];
			} elseif ( isset( $response['entry_data']['TagPage'][0]['graphql']['hashtag']['edge_hashtag_to_media']['edges'] ) ) {
				$response = $response['entry_data']['TagPage'][0]['graphql']['hashtag']['edge_hashtag_to_media']['edges'];
			} else {
				return esc_html__( 'invalid data.', 'glaza-core' );
			}

			if ( ! is_array( $response ) ) {
				return esc_html__( 'invalid data.', 'glaza-core' );
			}

			$data_images = array();

			foreach ( $response as $image ) {
				$image['thumbnail_src'] = '';

				if ( ! empty( $image['node']['thumbnail_resources'][4]['src'] ) ) {
					$image['thumbnail_src'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][4]['src'] );
				} elseif ( ! empty( $image['node']['thumbnail_resources'][2]['src'] ) ) {
					$image['thumbnail_src'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][2]['src'] );
				} elseif ( ! empty( $image['node']['thumbnail_resources'][0]['src'] ) ) {
					$image['thumbnail_src'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][0]['src'] );
				}

				if ( ! empty( $image['node']['shortcode'] ) ) {
					$link = trailingslashit( '//instagram.com/p/' . $image['node']['shortcode'] );
				} else {
					$link = '#';
				}

				if ( ! empty( $image['node']['edge_media_to_caption']['edges'][0]['node']['text'] ) ) {
					$caption = esc_attr( $image['node']['edge_media_to_caption']['edges'][0]['node']['text'] );
				} else {
					$caption = 'instagram image';
				}

				$data_images[] = array(
					'thumbnail_src' => $image['thumbnail_src'],
					'caption'       => $caption,
					'link'          => $link,
				);
			}

			$cache_data[ $cache_id ] = $data_images;
			delete_transient( $cache_name );
			set_transient( $cache_name, $cache_data, 12000 );

			return $data_images;
		}
	}
}


/**
 * @param array $settings
 *
 * @return array|mixed|object
 * flickr data
 */
if ( ! function_exists( 'glaza_data_flickr' ) ) {
	function glaza_data_flickr( $settings = array() ) {

		if ( empty( $settings['flickr_id'] ) ) {
			return false;
		};

		$cache_name = 'glaza_flickr_cache';
		if ( ! empty( $settings['cache_id'] ) ) {
			$cache_id = $settings['cache_id'];
		} else {
			$cache_id = 0;
		}

		$cache_data = get_transient( $cache_name );

		if ( ! is_array( $cache_data ) ) {
			$cache_data = array();
		}

		if ( ! empty( $cache_data[ $cache_id ] ) ) {
			return $cache_data[ $cache_id ];
		} else {

			if ( empty( $settings['tag'] ) ) {
				$settings['tag'] = '';
			}

			if ( empty( $settings['total_images'] ) ) {
				$settings['total_images'] = 9;
			}

			$params = array( 'timeout' => 100, 'sslverify' => false );

			$response = wp_remote_get( 'http://api.flickr.com/services/feeds/photos_public.gne?format=json&id=' . urlencode( $settings['flickr_id'] ) . '&nojsoncallback=1&tags=' . urlencode( $settings['tag'] ), $params );

			if ( is_wp_error( $response ) || '200' != $response['response']['code'] ) {
				return false;
			}

			$response    = wp_remote_retrieve_body( $response );
			$response    = str_replace( "\\'", "'", $response );
			$data_images = json_decode( $response, true );

			if ( is_array( $data_images ) ) {
				$data_images = array_slice( $data_images['items'], 0, $settings['total_images'] );
				foreach ( $data_images as $i => $v ) {
					$data_images[ $i ]['media'] = preg_replace( '/_m\.(jp?g|png|gif)$/', '_s.\\1', $v['media']['m'] );
				}

				$cache_data[ $cache_id ] = $data_images;
				delete_transient( $cache_name );
				set_transient( $cache_name, $cache_data, 12000 );

				return $response;
			} else {
				return false;
			}
		}
	}
}


/**
 * @param $video_url
 * @return bool|string
 * check video host
 */
if ( ! function_exists( 'glaza_video_detect_url' ) ) {
	function glaza_video_detect_url( $video_url ) {

		$video_url = strtolower( $video_url );

		if ( strpos( $video_url, 'youtube.com' ) !== false or strpos( $video_url, 'youtu.be' ) !== false ) {
			return 'youtube';
		}
		if ( strpos( $video_url, 'dailymotion.com' ) !== false ) {
			return 'dailymotion';
		}
		if ( strpos( $video_url, 'vimeo.com' ) !== false ) {
			return 'vimeo';
		}

		return false;
	}
}


/**
 * @param $video_url
 * @return mixed
 * get youtube video ID
 */
if ( ! function_exists( 'glaza_video_id_youtube' ) ) {
	function glaza_video_id_youtube( $video_url ) {
		$s = array();
		parse_str( parse_url( $video_url, PHP_URL_QUERY ), $s );

		if ( empty( $s["v"] ) ) {
			$youtube_sl_explode = explode( '?', $video_url );

			$youtube_sl = explode( '/', $youtube_sl_explode[0] );
			if ( ! empty( $youtube_sl[3] ) ) {
				return $youtube_sl [3];
			}

			return $youtube_sl [0];
		} else {
			return $s["v"];
		}
	}
}


/**
 * @param $video_url
 * @return mixed
 * get vimeo video ID
 */
if ( ! function_exists( 'glaza_video_id_vimeo' ) ) {
	function glaza_video_id_vimeo( $video_url ) {
		sscanf( parse_url( $video_url, PHP_URL_PATH ), '/%d', $video_id );

		return $video_id;
	}
}


if ( ! function_exists( 'glaza_video_id_dailymotion' ) ) {
	function glaza_video_id_dailymotion( $video_url ) {

		$video_id = strtok( basename( $video_url ), '_' );
		if ( strpos( $video_id, '#video=' ) !== false ) {
			$video_parts = explode( '#video=', $video_id );
			if ( ! empty( $video_parts[1] ) ) {
				return $video_parts[1];
			}
		};

		return $video_id;
	}
}


/**
 * @param $image_url
 * @return bool
 * check response
 */
if ( ! function_exists( 'glaza_video_feat_response' ) ) {
	function  glaza_video_feat_response( $image_url ) {
		$headers = @get_headers( $image_url );
		if ( ! empty( $headers[0] ) and strpos( $headers[0], '404' ) !== false ) {
			return true;
		}

		return false;
	}
}


/**
 * @param $video_url
 * get video thumbnail youtube
 */
if ( ! function_exists( 'glaza_video_get_feat_youtube' ) ) {
	function glaza_video_get_feat_youtube( $video_url ) {

		//set http
		$protocol = 'http';
		if ( is_ssl() ) {
			$protocol = 'https';
		}

		$video_id = glaza_video_id_youtube( $video_url );

		$image_url_1920 = $protocol . '://img.youtube.com/vi/' . $video_id . '/maxresdefault.jpg';
		$image_url_640  = $protocol . '://img.youtube.com/vi/' . $video_id . '/sddefault.jpg';
		$image_url_480  = $protocol . '://img.youtube.com/vi/' . $video_id . '/hqdefault.jpg';

		if ( ! glaza_video_feat_response( $image_url_1920 ) ) {
			return $image_url_1920;
		} elseif ( ! glaza_video_feat_response( $image_url_640 ) ) {
			return $image_url_640;
		} elseif ( ! glaza_video_feat_response( $image_url_480 ) ) {
			return $image_url_480;
		} else {
			return false;
		}
	}
}


/**
 * @param $video_url
 * @return bool
 * get vimeo featured image
 */
if ( ! function_exists( 'glaza_video_get_feat_vimeo' ) ) {
	function glaza_video_get_feat_vimeo( $video_url ) {

		$protocol = 'http';
		if ( is_ssl() ) {
			$protocol = 'https';
		}

		$video_id = glaza_video_id_vimeo( $video_url );
		$api_url  = $protocol . '://vimeo.com/api/oembed.json?url=https://vimeo.com/' . $video_id;

		$data_response = wp_remote_get( $api_url, array(
				'timeout'    => 60,
				'sslverify'  => false,
				'user-agent' => 'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0'
			)
		);

		if ( ! is_wp_error( $data_response ) ) {
			$data_response = wp_remote_retrieve_body( $data_response );
			$data_response = json_decode( $data_response );
			$image_url     = $data_response->thumbnail_url;

			return $image_url;
		} else {
			return false;
		}
	}
}


/**
 * @param $video_url
 * @return bool
 * get dailymotion featured image
 */
if ( ! function_exists( 'glaza_video_get_feat_dailymotion' ) ) {
	function glaza_video_get_feat_dailymotion( $video_url ) {

		$video_id = glaza_video_id_dailymotion( $video_url );
		$protocol = 'http';
		if ( is_ssl() ) {
			$protocol = 'https';
		}

		$param         = $protocol . '://api.dailymotion.com/video/' . $video_id . '?fields=thumbnail_url';
		$data_response = wp_remote_get( $param );
		if ( ! is_wp_error( $data_response ) ) {
			$data_response = json_decode( $data_response['body'] );
			$image_url     = $data_response->thumbnail_url;

			return $image_url;
		} else {
			return false;
		}
	}
}

/**
 * @param $video_url
 * @return bool|string
 * get video featured image
 */
if ( ! function_exists( 'glaza_video_get_feat' ) ) {
	function glaza_video_get_feat( $video_url ) {

		if ( empty( $video_url ) ) {
			return false;
		}

		$host_name = glaza_video_detect_url( $video_url );

		switch ( $host_name ) {
			case 'youtube' :
				return glaza_video_get_feat_youtube( $video_url );
			case 'vimeo' :
				return glaza_video_get_feat_vimeo( $video_url );
			case 'dailymotion' :
				return glaza_video_get_feat_dailymotion( $video_url );
			default :
				return false;
		}
	}
}

/**
 * @param $att_id
 * set featured thumbnail
 */
if ( ! function_exists( 'glaza_video_set_featured' ) ) {
	function glaza_video_set_featured( $att_id ) {
		update_post_meta( get_the_ID(), '_thumbnail_id', $att_id );
	}
}


/**
 * @param $post_id
 * @return bool
 * get and save video featured image
 */
if ( ! function_exists( 'glaza_video_save_featured' ) ) {
	function glaza_video_save_featured( $post_id ) {

		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
			return false;
		}

		if ( get_post_status( $post_id ) != 'publish' ) {
			return false;
		}

		$post_type = get_post_type( $post_id );
		$video_url = get_post_meta( $post_id, 'glaza_meta_video_url', true );

		if ( 'post' != $post_type || empty( $video_url ) ) {
			return false;
		}

		$image_url = glaza_video_get_feat( $video_url );

		if ( ! empty( $image_url ) && ! has_post_thumbnail( $post_id ) ) {
			add_action( 'add_attachment', 'glaza_video_set_featured' );
			media_sideload_image( $image_url, $post_id, $post_id );
			remove_action( 'add_attachment', 'glaza_video_set_featured' );
		};

		return false;
	}
}

add_action( 'save_post', 'glaza_video_save_featured', 10, 1 );


/**
 * @param $image
 * @param $attachment_id
 * @param $size
 * @param $icon
 * @return array|false
 * gif support
 */

if ( ! function_exists( 'glaza_support_gif' ) ) {
	function glaza_support_gif( $image, $attachment_id, $size, $icon ) {

		$gif_support = glaza_get_option( 'gif_support' );

		if ( ! empty( $gif_support ) ) {
			$format = wp_check_filetype( $image[0] );

			if ( ! empty( $format ) && 'gif' == $format['ext'] && 'full' != $size ) {
				return wp_get_attachment_image_src( $attachment_id, $size = 'full', $icon );
			}
		}

		return $image;
	}
}
add_filter( 'wp_get_attachment_image_src', 'glaza_support_gif', 10, 4 );