| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* Gallery builder import engine. |
| 5 |
* |
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* @link https://plugins360.com |
| 7 |
* @since 2.8.0 |
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* |
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* @package Automatic_YouTube_Gallery |
| 10 |
*/ |
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|
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// Exit if accessed directly |
| 13 |
if ( ! defined( 'WPINC' ) ) { |
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die; |
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} |
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|
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/** |
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* AYG_Import class. |
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* |
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* @since 2.8.0 |
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*/ |
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class AYG_Import { |
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|
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/** |
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* Import a single batch of videos for the given gallery. |
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* |
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* @since 2.8.0 |
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* @param int $gallery_id Gallery ID. |
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* @param string $page_token Page token to resume from. Empty string starts from the |
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* saved token (if any) or the first page. |
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* @param bool $manual True for a manual "Create / Update Gallery" run: full re-scan, |
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* no per-run cap, and prune videos no longer in the source. Cron |
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* passes false (incremental, capped, never prunes). |
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* @return array { imported, total_so_far, next_page_token, done } |
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* on success, or { error, quota_exceeded } on failure. |
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*/ |
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public function import_batch( $gallery_id, $page_token = '', $manual = false ) { |
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global $wpdb; |
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|
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$galleries_table = $wpdb->prefix . 'ayg_galleries'; |
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$rel_table = $wpdb->prefix . 'ayg_gallery_relationships'; |
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|
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$gallery = ayg_get_gallery( $gallery_id ); |
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|
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if ( ! $gallery ) { |
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return array( 'error' => __( 'Gallery not found.', 'automatic-youtube-gallery' ) ); |
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} |
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|
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if ( in_array( $gallery->source_type, array( 'search', 'livestream', 'video' ), true ) ) { |
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return array( 'error' => __( 'Live galleries (search / livestream / single video) query the live API at display time and cannot be imported.', 'automatic-youtube-gallery' ) ); |
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} |
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|
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$params = json_decode( (string) $gallery->params, true ); |
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if ( ! is_array( $params ) ) { |
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$params = array(); |
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} |
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|
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// Empty incoming token = first batch of a run (the loop passes the returned token back). |
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$is_first_batch = ( '' === $page_token ); |
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|
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// A genuinely fresh start has neither an incoming nor a saved token (a resume has a saved one). |
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$is_fresh_start = ( $is_first_batch && empty( $params['page_token'] ) ); |
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|
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// Resume from the saved token when the client does not supply one (e.g. after a quota pause). |
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if ( '' === $page_token && ! empty( $params['page_token'] ) ) { |
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$page_token = (string) $params['page_token']; |
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} |
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|
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// Manual "Update Gallery" runs a full refresh: full re-scan (no early-stop), no per-run cap |
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// (the browser completes it in one go), metadata refreshed via upsert, and a prune of videos |
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// no longer in the source on the final batch. Cron stays incremental + capped + never prunes. |
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// |
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// On a fresh start, reset the run's counters and (for manual) stamp the run's start time. Each |
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// batch then marks the links it re-stores with this timestamp; on the final batch any link not |
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// re-stamped (i.e. removed at the source) is pruned. A resume keeps both so totals + the prune |
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// marker stay correct across the whole run. |
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if ( $is_fresh_start ) { |
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$params['count_imported'] = 0; |
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$params['count_updated'] = 0; |
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|
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if ( $manual ) { |
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$params['sync_run_start'] = current_time( 'mysql' ); |
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} |
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} |
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|
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// Completed gallery syncs incrementally; a new / never-finished one does a full scan. |
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// Stable for the whole run: last_imported_at only flips on this run's final batch. |
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$incremental = ! empty( $gallery->last_imported_at ); |
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|
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$now = current_time( 'mysql' ); |
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|
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if ( 'running' !== $gallery->import_status ) { |
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$wpdb->update( |
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$galleries_table, |
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array( |
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'import_status' => 'running', |
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'updated_at' => $now |
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), |
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array( 'id' => $gallery->id ), |
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array( '%s', '%s' ), |
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array( '%d' ) |
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); |
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} |
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|
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// Relationship count before this page is stored. Used by the channel/username early-stop and to |
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// split this batch into new (imported) vs already-linked (updated) videos. |
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$rel_count_before = (int) $wpdb->get_var( |
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$wpdb->prepare( "SELECT COUNT(*) FROM $rel_table WHERE gallery_id = %s", strval( $gallery->id ) ) |
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); |
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|
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// Fetch one page. The query carries uid + exclude + advanced mode, so request_videos() also |
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// stores the video rows + relationships and enriches duration / video_type as a side effect. |
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$response = $this->request_videos( $gallery, $params, $page_token ); |
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|
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if ( isset( $response->error ) ) { |
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// A real API failure stops the run. But an incremental sync that simply found an empty |
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// result set (nothing to import) is a clean, complete run — fall through with an empty |
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// video set so the normal completion path finalizes it. |
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if ( ! $incremental || empty( $response->no_results ) ) { |
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return $this->handle_api_error( $gallery, $params, $response, $page_token ); |
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} |
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|
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$videos = array(); |
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} else { |
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$videos = $response->videos; |
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} |
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|
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// Manual full refresh: stamp this batch's links with the run's start time so the final batch can |
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// prune links not seen this run. One UPDATE per batch — no growing id list, scales to any size. |
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if ( $manual && ! empty( $videos ) ) { |
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$batch_ids = array(); |
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|
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foreach ( $videos as $video ) { |
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if ( ! empty( $video->id ) ) { |
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$batch_ids[] = $video->id; |
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} |
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} |
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|
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if ( $batch_ids ) { |
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$run_start = isset( $params['sync_run_start'] ) ? (string) $params['sync_run_start'] : $now; |
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$placeholders = implode( ',', array_fill( 0, count( $batch_ids ), '%s' ) ); |
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|
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$wpdb->query( |
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$wpdb->prepare( |
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"UPDATE $rel_table SET synced_at = %s WHERE gallery_id = %s AND video_id IN ( $placeholders )", |
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array_merge( array( $run_start, strval( $gallery->id ) ), $batch_ids ) |
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) |
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); |
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} |
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} |
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|
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$video_count = (int) $wpdb->get_var( |
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$wpdb->prepare( "SELECT COUNT(*) FROM $rel_table WHERE gallery_id = %s", strval( $gallery->id ) ) |
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); |
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|
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// New links added this batch (imported). Accumulate across batches for the run total. |
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$new_this_batch = max( 0, $video_count - $rel_count_before ); |
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$params['count_imported'] = ( isset( $params['count_imported'] ) ? (int) $params['count_imported'] : 0 ) + $new_this_batch; |
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|
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// "Updated" (existing videos re-synced) is only counted for a manual full refresh. Cron's |
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// incremental re-fetch of the newest page would otherwise log a misleading "updated" every run |
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// even when nothing changed; cron keeps updated = 0 and reports only genuinely new imports. |
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if ( $manual ) { |
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$updated_this_batch = max( 0, count( $videos ) - $new_this_batch ); |
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$params['count_updated'] = ( isset( $params['count_updated'] ) ? (int) $params['count_updated'] : 0 ) + $updated_this_batch; |
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} |
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|
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$next_page_token = ''; |
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if ( isset( $response->page_info ) && ! empty( $response->page_info['next_page_token'] ) ) { |
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$next_page_token = (string) $response->page_info['next_page_token']; |
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} |
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|
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// Incremental channel / username sync stops at the first already-stored video instead of |
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// re-paging the whole channel: the uploads playlist is reverse-chronological and never |
| 175 |
// reordered, so a known video means all older ones are known. A fully-new page (cron stalled, |
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// > 50 new) keeps paging so the backlog isn't lost. Overlap = fewer new rows than page videos. |
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if ( $incremental && ! $manual && in_array( $gallery->source_type, array( 'channel', 'username' ), true ) ) { |
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if ( ( $video_count - $rel_count_before ) < count( $videos ) ) { |
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$next_page_token = ''; |
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} |
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} |
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|
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// No next page token means the run is done — either the source has no more pages, or |
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// the early-stop above cleared the token after reaching an already-stored video. |
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$done = ( '' === $next_page_token ); |
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|
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// Per-run safety cap: a run (one browser loop or one cron fire) processes at most |
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// max_videos_per_run() videos, then pauses with the token saved so cron finishes the rest. |
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$run_processed = ( $is_first_batch ? 0 : (int) ( isset( $params['run_processed'] ) ? $params['run_processed'] : 0 ) ) + count( $videos ); |
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$params['run_processed'] = $run_processed; |
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|
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// Manual runs are uncapped — the browser completes the whole scan in one session. |
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$capped = ( ! $manual && ! $done && $run_processed >= $this->max_videos_per_run() ); |
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|
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$params['page_token'] = $done ? '' : $next_page_token; |
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|
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// Run totals (accumulated across batches): imported = new, updated = existing re-synced, |
| 198 |
// deleted = pruned on the final manual batch. |
| 199 |
$imported = isset( $params['count_imported'] ) ? (int) $params['count_imported'] : 0; |
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$updated = isset( $params['count_updated'] ) ? (int) $params['count_updated'] : 0; |
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$deleted = 0; |
| 202 |
|
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$data = array( 'updated_at' => $now ); |
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|
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if ( $done ) { |
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$schedule = isset( $params['schedule'] ) ? absint( $params['schedule'] ) : 0; |
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$is_recurring = $schedule > 0 && ! in_array( $gallery->source_type, array( 'video', 'videos' ), true ); |
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|
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$data['import_status'] = $is_recurring ? 'idle' : 'completed'; |
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$data['import_error'] = ''; |
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$data['last_imported_at'] = $now; |
| 212 |
$data['next_import_at'] = $is_recurring ? date( 'Y-m-d H:i:s', current_time( 'timestamp' ) + $schedule ) : null; |
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|
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unset( $params['run_processed'] ); |
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|
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// Manual full refresh: this run scanned the whole source and stamped every link it saw with |
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// $run_start, so prune the gallery's links NOT stamped this run (removed at the source), then |
| 218 |
// recount. Cron never does this. Guard: only prune when the run actually stamped something |
| 219 |
// (imported + updated > 0) so an empty/failed scan can't wipe the gallery. |
| 220 |
if ( $manual ) { |
| 221 |
if ( ( $imported + $updated ) > 0 && ! empty( $params['sync_run_start'] ) ) { |
| 222 |
$deleted = $this->prune_deleted_videos( $gallery, (string) $params['sync_run_start'] ); |
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|
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$video_count = (int) $wpdb->get_var( |
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$wpdb->prepare( "SELECT COUNT(*) FROM $rel_table WHERE gallery_id = %s", strval( $gallery->id ) ) |
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); |
| 227 |
} |
| 228 |
|
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unset( $params['sync_run_start'] ); |
| 230 |
} |
| 231 |
|
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// One log entry per completed run, recording this run's imported / updated / deleted totals. |
| 233 |
$data['import_log'] = $this->append_log_entry( $gallery, $imported, $updated, $deleted, $data['import_status'], '' ); |
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|
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unset( $params['count_imported'], $params['count_updated'] ); |
| 236 |
} elseif ( $capped ) { |
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// Hand off to cron: idle + due now so the next fire resumes from the saved token. |
| 238 |
// last_imported_at stays unset, so the resume keeps the same import mode. |
| 239 |
$data['import_status'] = 'idle'; |
| 240 |
$data['next_import_at'] = $now; |
| 241 |
} |
| 242 |
|
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// params / video_count are appended last so their values reflect the cleanup above. |
| 244 |
$data['params'] = wp_json_encode( $params ); |
| 245 |
$data['video_count'] = $video_count; |
| 246 |
|
| 247 |
$wpdb->update( |
| 248 |
$galleries_table, |
| 249 |
$data, |
| 250 |
array( 'id' => $gallery->id ), |
| 251 |
array(), |
| 252 |
array( '%d' ) |
| 253 |
); |
| 254 |
|
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return array( |
| 256 |
'imported' => $imported, // Running run totals; final on the done batch. |
| 257 |
'updated' => $updated, |
| 258 |
'deleted' => $deleted, |
| 259 |
'total_so_far' => $video_count, |
| 260 |
'next_page_token' => $next_page_token, |
| 261 |
'capped' => $capped, |
| 262 |
'done' => $done || $capped // A capped run reports done so the browser / cron loop stops; cron continues it. |
| 263 |
); |
| 264 |
} |
| 265 |
|
| 266 |
/** |
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* Scheduled sync entry point. Invoked by the ayg_cron_schedule cron dispatcher. |
| 268 |
* |
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* @since 2.8.0 |
| 270 |
*/ |
| 271 |
public function sync() { |
| 272 |
$this->recover_stuck_syncs(); |
| 273 |
|
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$gallery_id = $this->get_due_gallery_id(); |
| 275 |
if ( ! $gallery_id ) { |
| 276 |
return; |
| 277 |
} |
| 278 |
|
| 279 |
// Cron has no client to drive the batches, so loop here. import_batch() self-caps each |
| 280 |
// fire and reports done; the guard is just a backstop against a non-terminating loop. |
| 281 |
$page_token = ''; |
| 282 |
$guard = 0; |
| 283 |
|
| 284 |
do { |
| 285 |
$result = $this->import_batch( $gallery_id, $page_token ); |
| 286 |
|
| 287 |
if ( isset( $result['error'] ) ) { |
| 288 |
break; |
| 289 |
} |
| 290 |
|
| 291 |
$page_token = $result['next_page_token']; |
| 292 |
} while ( empty( $result['done'] ) && ++$guard < 1000 ); |
| 293 |
} |
| 294 |
|
| 295 |
/** |
| 296 |
* Fetch and store one page of videos from the YouTube API for the gallery source. |
| 297 |
* |
| 298 |
* @since 2.8.0 |
| 299 |
* @access private |
| 300 |
* @param object $gallery Gallery row from wp_ayg_galleries. |
| 301 |
* @param array $params Decoded gallery params. |
| 302 |
* @param string $page_token Page token to fetch. |
| 303 |
* @return mixed Response object, or error object from the API class. |
| 304 |
*/ |
| 305 |
private function request_videos( $gallery, $params, $page_token ) { |
| 306 |
$query = array( |
| 307 |
'type' => $gallery->source_type, |
| 308 |
'src' => $gallery->source_value, |
| 309 |
'uid' => strval( $gallery->id ), |
| 310 |
'exclude' => ( isset( $params['exclude'] ) && is_array( $params['exclude'] ) ) ? $params['exclude'] : array(), |
| 311 |
'mode' => 'advanced', |
| 312 |
'maxResults' => 50, // YouTube's max per call; one quota unit regardless, so always page at 50 |
| 313 |
'pageToken' => $page_token, |
| 314 |
'cache' => 0 |
| 315 |
); |
| 316 |
|
| 317 |
$api = new AYG_YouTube_API(); |
| 318 |
|
| 319 |
// query() also persists the videos + relationships (see note above), not just fetch. |
| 320 |
return $api->query( $query ); |
| 321 |
} |
| 322 |
|
| 323 |
/** |
| 324 |
* Maximum number of videos to process in a single run before pausing for cron. |
| 325 |
* |
| 326 |
* @since 2.8.0 |
| 327 |
* @access private |
| 328 |
* @return int Videos per run (always >= 1). |
| 329 |
*/ |
| 330 |
private function max_videos_per_run() { |
| 331 |
$limit = (int) apply_filters( 'ayg_import_max_videos_per_run', 1000 ); |
| 332 |
return $limit > 0 ? $limit : 1000; |
| 333 |
} |
| 334 |
|
| 335 |
/** |
| 336 |
* Prune a gallery's videos that were not seen during a manual full scan. |
| 337 |
* |
| 338 |
* A complete manual run stamps every link it re-stores with $run_start (see import_batch). This |
| 339 |
* removes the gallery's links NOT stamped this run (i.e. removed at the source), then deletes any |
| 340 |
* wp_ayg_videos rows left orphaned (not linked by ANY gallery — shared rows are kept). The caller |
| 341 |
* only invokes this after a non-empty scan, so a transient API failure can't empty the gallery. |
| 342 |
* |
| 343 |
* @since 2.8.0 |
| 344 |
* @access private |
| 345 |
* @param object $gallery Gallery row. |
| 346 |
* @param string $run_start Timestamp this run stamped its links with (MySQL datetime). |
| 347 |
* @return int Number of gallery links removed. |
| 348 |
*/ |
| 349 |
private function prune_deleted_videos( $gallery, $run_start ) { |
| 350 |
global $wpdb; |
| 351 |
|
| 352 |
if ( '' === (string) $run_start ) { |
| 353 |
return 0; |
| 354 |
} |
| 355 |
|
| 356 |
$rel_table = $wpdb->prefix . 'ayg_gallery_relationships'; |
| 357 |
$videos_table = $wpdb->prefix . 'ayg_videos'; |
| 358 |
|
| 359 |
// 1) Drop this gallery's links not re-stamped by this run (NULL = never synced, or an older run). |
| 360 |
$deleted = (int) $wpdb->query( |
| 361 |
$wpdb->prepare( |
| 362 |
"DELETE FROM $rel_table WHERE gallery_id = %s AND ( synced_at IS NULL OR synced_at < %s )", |
| 363 |
strval( $gallery->id ), |
| 364 |
$run_start |
| 365 |
) |
| 366 |
); |
| 367 |
|
| 368 |
// 2) Delete video rows now orphaned (linked by no gallery). Rows shared by others are kept. |
| 369 |
$wpdb->query( |
| 370 |
"DELETE v FROM $videos_table v |
| 371 |
LEFT JOIN $rel_table r ON v.video_id = r.video_id |
| 372 |
WHERE r.video_id IS NULL" |
| 373 |
); |
| 374 |
|
| 375 |
return $deleted; |
| 376 |
} |
| 377 |
|
| 378 |
/** |
| 379 |
* Maximum number of run entries kept in a gallery's import_log JSON. |
| 380 |
* |
| 381 |
* @since 2.8.0 |
| 382 |
* @access private |
| 383 |
* @return int Log entries to keep (always >= 1). |
| 384 |
*/ |
| 385 |
private function max_log_entries() { |
| 386 |
$max = (int) apply_filters( 'ayg_import_max_log_entries', 25 ); |
| 387 |
return $max > 0 ? $max : 25; |
| 388 |
} |
| 389 |
|
| 390 |
/** |
| 391 |
* Recover galleries left stuck in the 'running' state. |
| 392 |
* |
| 393 |
* @since 2.8.0 |
| 394 |
* @access private |
| 395 |
*/ |
| 396 |
private function recover_stuck_syncs() { |
| 397 |
global $wpdb; |
| 398 |
|
| 399 |
$galleries_table = $wpdb->prefix . 'ayg_galleries'; |
| 400 |
|
| 401 |
$now = current_time( 'mysql' ); |
| 402 |
$threshold = date( 'Y-m-d H:i:s', current_time( 'timestamp' ) - 10 * MINUTE_IN_SECONDS ); |
| 403 |
|
| 404 |
$wpdb->query( |
| 405 |
$wpdb->prepare( |
| 406 |
"UPDATE $galleries_table |
| 407 |
SET import_status = 'idle', next_import_at = %s, updated_at = %s |
| 408 |
WHERE import_status = 'running' AND updated_at < %s", |
| 409 |
$now, |
| 410 |
$now, |
| 411 |
$threshold |
| 412 |
) |
| 413 |
); |
| 414 |
} |
| 415 |
|
| 416 |
/** |
| 417 |
* Find the earliest gallery that is due for a scheduled sync. |
| 418 |
* |
| 419 |
* @since 2.8.0 |
| 420 |
* @access private |
| 421 |
* @return int|null Gallery ID, or null when none are due. |
| 422 |
*/ |
| 423 |
private function get_due_gallery_id() { |
| 424 |
global $wpdb; |
| 425 |
|
| 426 |
$galleries_table = $wpdb->prefix . 'ayg_galleries'; |
| 427 |
|
| 428 |
$gallery_id = $wpdb->get_var( |
| 429 |
$wpdb->prepare( |
| 430 |
"SELECT id FROM $galleries_table |
| 431 |
WHERE next_import_at IS NOT NULL |
| 432 |
AND next_import_at < %s |
| 433 |
AND import_status NOT IN ( 'running', 'paused', 'error' ) |
| 434 |
AND source_type NOT IN ( 'search', 'livestream', 'video' ) |
| 435 |
ORDER BY next_import_at ASC |
| 436 |
LIMIT 1", |
| 437 |
current_time( 'mysql' ) |
| 438 |
) |
| 439 |
); |
| 440 |
|
| 441 |
return $gallery_id ? (int) $gallery_id : null; |
| 442 |
} |
| 443 |
|
| 444 |
/** |
| 445 |
* Handle an API error response for the current batch. |
| 446 |
* |
| 447 |
* @since 2.8.0 |
| 448 |
* @access private |
| 449 |
* @param object $gallery Gallery row from wp_ayg_galleries. |
| 450 |
* @param array $params Decoded gallery params. |
| 451 |
* @param object $response Error object from the API class. |
| 452 |
* @param string $page_token Page token the failed batch was fetching. |
| 453 |
* @return array { error, quota_exceeded } |
| 454 |
*/ |
| 455 |
private function handle_api_error( $gallery, $params, $response, $page_token ) { |
| 456 |
global $wpdb; |
| 457 |
|
| 458 |
$message = wp_strip_all_tags( $response->error_message ); |
| 459 |
$quota_exceeded = ( false !== stripos( $message, 'quotaExceeded' ) ); |
| 460 |
$status = $quota_exceeded ? 'paused' : 'error'; |
| 461 |
|
| 462 |
// Log what earlier batches imported/updated before the error (deleted = 0: the prune runs only on |
| 463 |
// a clean completion). Then reset the counters so a resume logs only its own delta rather than |
| 464 |
// re-counting these. sync_run_start + page_token are kept so a resume continues from the same |
| 465 |
// point with the same prune marker; only the per-run cap counter restarts. |
| 466 |
$imported = isset( $params['count_imported'] ) ? (int) $params['count_imported'] : 0; |
| 467 |
$updated = isset( $params['count_updated'] ) ? (int) $params['count_updated'] : 0; |
| 468 |
|
| 469 |
$params['page_token'] = $page_token; |
| 470 |
$params['count_imported'] = 0; |
| 471 |
$params['count_updated'] = 0; |
| 472 |
unset( $params['run_processed'] ); |
| 473 |
|
| 474 |
$wpdb->update( |
| 475 |
$wpdb->prefix . 'ayg_galleries', |
| 476 |
array( |
| 477 |
'params' => wp_json_encode( $params ), |
| 478 |
'import_status' => $status, |
| 479 |
'import_error' => $message, |
| 480 |
'updated_at' => current_time( 'mysql' ), |
| 481 |
'import_log' => $this->append_log_entry( $gallery, $imported, $updated, 0, $status, $message ) // Record the stopped run (counts so far + message) so it shows in the log. |
| 482 |
), |
| 483 |
array( 'id' => $gallery->id ), |
| 484 |
array(), |
| 485 |
array( '%d' ) |
| 486 |
); |
| 487 |
|
| 488 |
return array( |
| 489 |
'error' => $message, |
| 490 |
'quota_exceeded' => $quota_exceeded |
| 491 |
); |
| 492 |
} |
| 493 |
|
| 494 |
/** |
| 495 |
* Append a run entry to the gallery's import_log JSON and return the encoded result. |
| 496 |
* |
| 497 |
* @since 2.8.0 |
| 498 |
* @access private |
| 499 |
* @param object $gallery Gallery row from wp_ayg_galleries. |
| 500 |
* @param int $imported Number of new videos added by this run. |
| 501 |
* @param int $updated Number of already-linked videos re-synced this run. |
| 502 |
* @param int $deleted Number of videos pruned this run (removed at the source). |
| 503 |
* @param string $status Final run status ('idle' / 'completed' / 'paused' / 'error'). |
| 504 |
* @param string $error Error message for failed runs, empty otherwise. |
| 505 |
* @return string JSON-encoded import_log. |
| 506 |
*/ |
| 507 |
private function append_log_entry( $gallery, $imported, $updated, $deleted, $status, $error = '' ) { |
| 508 |
$logs = json_decode( (string) $gallery->import_log, true ); |
| 509 |
if ( ! is_array( $logs ) ) { |
| 510 |
$logs = array(); |
| 511 |
} |
| 512 |
|
| 513 |
$entry = array( |
| 514 |
'date' => current_time( 'mysql' ), |
| 515 |
'imported' => (int) $imported, |
| 516 |
'updated' => (int) $updated, |
| 517 |
'deleted' => (int) $deleted, |
| 518 |
'status' => $status |
| 519 |
); |
| 520 |
|
| 521 |
// Record the error message on failed runs so it can be shown in the log. |
| 522 |
if ( '' !== $error ) { |
| 523 |
$entry['error'] = $error; |
| 524 |
} |
| 525 |
|
| 526 |
$logs[] = $entry; |
| 527 |
|
| 528 |
$max = $this->max_log_entries(); |
| 529 |
if ( count( $logs ) > $max ) { |
| 530 |
$logs = array_slice( $logs, -$max ); |
| 531 |
} |
| 532 |
|
| 533 |
return wp_json_encode( $logs ); |
| 534 |
} |
| 535 |
|
| 536 |
} |
| 537 |
|
