| 1 |
<?php |
| 2 |
/** |
| 3 |
* Desktop Mode — Agents: persisted chat conversations. |
| 4 |
* |
| 5 |
* Each conversation is one post of the private `desktop_mode_chat` |
| 6 |
* post type: `post_author` is the human who held the conversation, |
| 7 |
* the messages live as JSON in `post_content`, the agent's user id in |
| 8 |
* post meta, and the title is derived from the first user message. |
| 9 |
* The posts table is the WordPress-native store for per-user document |
| 10 |
* lists — user meta was rejected because WordPress loads all of a |
| 11 |
* user's meta into cache on any meta read, so fat transcripts would |
| 12 |
* tax every request that touches the user. |
| 13 |
* |
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* Access is strictly owner-only: conversations are private |
| 15 |
* correspondence, so not even administrators can read another user's |
| 16 |
* chats through this API. |
| 17 |
* |
| 18 |
* REST surface (all under `desktop-mode/v1`): |
| 19 |
* GET /agents/conversations — the caller's list, newest first |
| 20 |
* POST /agents/conversations — create ({agentId, messages}) |
| 21 |
* GET /agents/conversations/:id — one conversation with messages |
| 22 |
* PUT /agents/conversations/:id — replace messages ({messages}) |
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* DELETE /agents/conversations/:id — delete |
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* |
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* @package WPDesktopMode |
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*/ |
| 27 |
|
| 28 |
defined( 'ABSPATH' ) || exit; |
| 29 |
|
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/** Post type holding one conversation per post. */ |
| 31 |
const DESKTOP_MODE_AGENT_CHAT_POST_TYPE = 'desktop_mode_chat'; |
| 32 |
|
| 33 |
/** Newest conversations kept per user — creating past the cap prunes the oldest. */ |
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const DESKTOP_MODE_AGENT_CONVERSATION_CAP = 100; |
| 35 |
|
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/** Newest messages kept per conversation — updates past the cap trim the oldest. */ |
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const DESKTOP_MODE_AGENT_CONVERSATION_MESSAGE_CAP = 200; |
| 38 |
|
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/** Stored per-message text cap. Wider than the runner's replay cap so long answers reload intact. */ |
| 40 |
const DESKTOP_MODE_AGENT_CONVERSATION_TEXT_CAP = 20000; |
| 41 |
|
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/** Characters of the last message shown as the sidebar's second line. */ |
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const DESKTOP_MODE_AGENT_CONVERSATION_PREVIEW_CAP = 80; |
| 44 |
|
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/** |
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* Entity kinds a message attachment may reference — mirrors the |
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* client's `DroppedEntityKind` and the drag-trigger config enum. |
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* |
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* @return string[] |
| 50 |
*/ |
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function desktop_mode_agent_conversation_attachment_kinds() { |
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return array( 'post', 'page', 'media', 'user', 'comment' ); |
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} |
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|
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/** |
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* Register the conversation post type. Private plumbing: no admin UI, |
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* no front-end queries, no revisions; rows die with their author. |
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* |
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* @return void |
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*/ |
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function desktop_mode_agent_conversations_register_post_type() { |
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register_post_type( |
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DESKTOP_MODE_AGENT_CHAT_POST_TYPE, |
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array( |
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'label' => __( 'Agent conversations', 'desktop-mode' ), |
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'public' => false, |
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'show_ui' => false, |
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'show_in_rest' => false, |
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'exclude_from_search' => true, |
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'publicly_queryable' => false, |
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'rewrite' => false, |
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'query_var' => false, |
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'supports' => array( 'title', 'author' ), |
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'delete_with_user' => true, |
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) |
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); |
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} |
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add_action( 'init', 'desktop_mode_agent_conversations_register_post_type', 5 ); |
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|
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/** |
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* Normalize caller-supplied messages for storage. |
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* |
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* Rows: `role` in user|agent|error, non-empty `text` (capped), `at` |
| 84 |
* timestamp. Tool calls keep name/args/error for the transcript |
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* display but DROP `output` — tool outputs can embed entire post |
| 86 |
* bodies and are never rendered. |
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* |
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* An `attachment` block survives too: the entity a drop or a "Send |
| 89 |
* to" pick carried into the conversation, so a reopened transcript |
| 90 |
* still renders the clickable object card instead of only the |
| 91 |
* boilerplate sentence the model was handed. |
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* |
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* @param mixed $messages Incoming message rows. |
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* @return array<int, array<string, mixed>> |
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*/ |
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function desktop_mode_agent_conversation_sanitize_messages( $messages ) { |
| 97 |
if ( ! is_array( $messages ) ) { |
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return array(); |
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} |
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|
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$clean = array(); |
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foreach ( $messages as $row ) { |
| 103 |
if ( ! is_array( $row ) ) { |
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continue; |
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} |
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$role = isset( $row['role'] ) ? sanitize_key( (string) $row['role'] ) : ''; |
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if ( ! in_array( $role, array( 'user', 'agent', 'error' ), true ) ) { |
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continue; |
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} |
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$text = isset( $row['text'] ) ? trim( (string) $row['text'] ) : ''; |
| 111 |
if ( '' === $text ) { |
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continue; |
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} |
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|
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$entry = array( |
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'role' => $role, |
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'text' => mb_substr( $text, 0, DESKTOP_MODE_AGENT_CONVERSATION_TEXT_CAP ), |
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'at' => isset( $row['at'] ) ? (int) $row['at'] : 0, |
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); |
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|
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// Call-to-action buttons survive with the message so a reopened |
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// conversation still shows them (spent ones stay disabled via |
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// `ctaUsed`). Reuses the runner's sanitizer — same caps. |
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if ( isset( $row['callToActions'] ) && function_exists( 'desktop_mode_agent_sanitize_call_to_actions' ) ) { |
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$ctas = desktop_mode_agent_sanitize_call_to_actions( $row['callToActions'] ); |
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if ( ! empty( $ctas ) ) { |
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$entry['callToActions'] = $ctas; |
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} |
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} |
| 130 |
if ( ! empty( $row['ctaUsed'] ) ) { |
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$entry['ctaUsed'] = true; |
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} |
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|
| 134 |
if ( isset( $row['attachment'] ) ) { |
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$attachment = desktop_mode_agent_conversation_sanitize_attachment( $row['attachment'] ); |
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if ( null !== $attachment ) { |
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$entry['attachment'] = $attachment; |
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} |
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} |
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|
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if ( isset( $row['toolCalls'] ) && is_array( $row['toolCalls'] ) ) { |
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$calls = array(); |
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foreach ( $row['toolCalls'] as $call ) { |
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if ( ! is_array( $call ) ) { |
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continue; |
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} |
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$calls[] = array( |
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'callId' => isset( $call['callId'] ) ? (string) $call['callId'] : '', |
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'name' => isset( $call['name'] ) ? (string) $call['name'] : '', |
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'args' => isset( $call['args'] ) && is_array( $call['args'] ) ? $call['args'] : array(), |
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'error' => isset( $call['error'] ) && is_string( $call['error'] ) ? $call['error'] : null, |
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); |
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} |
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if ( ! empty( $calls ) ) { |
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$entry['toolCalls'] = $calls; |
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} |
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} |
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|
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$clean[] = $entry; |
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} |
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|
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if ( count( $clean ) > DESKTOP_MODE_AGENT_CONVERSATION_MESSAGE_CAP ) { |
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$clean = array_slice( $clean, -DESKTOP_MODE_AGENT_CONVERSATION_MESSAGE_CAP ); |
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} |
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|
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return $clean; |
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} |
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|
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/** |
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* Normalize one message attachment, or null when the block does not |
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* describe an entity this site understands. |
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* |
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* Only the identity triple is stored — kind, id, title. The client |
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* resolves the object's URL at click time from the kind, so a |
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* renamed or re-permalinked entity never leaves a stale link behind |
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* in an old transcript. |
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* |
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* @param mixed $raw Incoming attachment block. |
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* @return array<string, mixed>|null |
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*/ |
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function desktop_mode_agent_conversation_sanitize_attachment( $raw ) { |
| 182 |
if ( ! is_array( $raw ) ) { |
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return null; |
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} |
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$kind = isset( $raw['kind'] ) ? sanitize_key( (string) $raw['kind'] ) : ''; |
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$id = isset( $raw['id'] ) ? (int) $raw['id'] : 0; |
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if ( $id <= 0 || ! in_array( $kind, desktop_mode_agent_conversation_attachment_kinds(), true ) ) { |
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return null; |
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} |
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$title = isset( $raw['title'] ) ? trim( wp_strip_all_tags( (string) $raw['title'] ) ) : ''; |
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return array( |
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'kind' => $kind, |
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'id' => $id, |
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'title' => '' !== $title ? mb_substr( $title, 0, 200 ) : '#' . $id, |
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); |
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} |
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|
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/** |
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* Derive a list title from the first user message. |
| 200 |
* |
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* @param array $messages Sanitized messages. |
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* @return string |
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*/ |
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function desktop_mode_agent_conversation_title( array $messages ) { |
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foreach ( $messages as $row ) { |
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if ( 'user' === $row['role'] ) { |
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return wp_html_excerpt( $row['text'], 60, '…' ); |
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} |
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} |
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return __( 'Conversation', 'desktop-mode' ); |
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} |
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|
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/** |
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* The sidebar's second line: the TAIL of the last message. |
| 215 |
* |
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* The title is derived from the FIRST user message, which makes every |
| 217 |
* conversation with the same opener look identical in the list. The |
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* preview answers the other question — "where did this one get to?" — |
| 219 |
* so it reads from the end ("…and search relevance.") rather than the |
| 220 |
* beginning. An attachment-carrying row previews the object instead of |
| 221 |
* the boilerplate sentence the model was handed. |
| 222 |
* |
| 223 |
* @param array $messages Sanitized messages. |
| 224 |
* @return string |
| 225 |
*/ |
| 226 |
function desktop_mode_agent_conversation_preview( array $messages ) { |
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$last = empty( $messages ) ? null : $messages[ count( $messages ) - 1 ]; |
| 228 |
if ( ! is_array( $last ) ) { |
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return ''; |
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} |
| 231 |
if ( isset( $last['attachment']['title'] ) ) { |
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return (string) $last['attachment']['title']; |
| 233 |
} |
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|
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$text = trim( (string) preg_replace( '/\s+/u', ' ', wp_strip_all_tags( (string) $last['text'] ) ) ); |
| 236 |
if ( '' === $text ) { |
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return ''; |
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} |
| 239 |
if ( mb_strlen( $text ) <= DESKTOP_MODE_AGENT_CONVERSATION_PREVIEW_CAP ) { |
| 240 |
return $text; |
| 241 |
} |
| 242 |
return '…' . mb_substr( $text, -DESKTOP_MODE_AGENT_CONVERSATION_PREVIEW_CAP ); |
| 243 |
} |
| 244 |
|
| 245 |
/** |
| 246 |
* The conversation post for `$id` when it exists AND belongs to the |
| 247 |
* current user; null otherwise. Ownership is the whole access model. |
| 248 |
* |
| 249 |
* @param int $id Post id. |
| 250 |
* @return WP_Post|null |
| 251 |
*/ |
| 252 |
function desktop_mode_agent_conversation_get_own( $id ) { |
| 253 |
$post = get_post( (int) $id ); |
| 254 |
if ( ! $post || DESKTOP_MODE_AGENT_CHAT_POST_TYPE !== $post->post_type ) { |
| 255 |
return null; |
| 256 |
} |
| 257 |
if ( (int) $post->post_author !== get_current_user_id() ) { |
| 258 |
return null; |
| 259 |
} |
| 260 |
return $post; |
| 261 |
} |
| 262 |
|
| 263 |
/** |
| 264 |
* Project a conversation post onto the REST shape. The agent block is |
| 265 |
* resolved live so the sidebar can paint the avatar + reopen the chat |
| 266 |
* header; a deleted agent degrades to a labelled placeholder. |
| 267 |
* |
| 268 |
* @param WP_Post $post Conversation post. |
| 269 |
* @param bool $with_messages Include the decoded messages array. |
| 270 |
* @return array<string, mixed> |
| 271 |
*/ |
| 272 |
function desktop_mode_agent_conversation_prepare( WP_Post $post, $with_messages = false ) { |
| 273 |
$agent_id = (int) get_post_meta( $post->ID, '_desktop_mode_agent_chat_agent_id', true ); |
| 274 |
$agent = $agent_id > 0 ? get_userdata( $agent_id ) : false; |
| 275 |
|
| 276 |
$messages = json_decode( (string) $post->post_content, true ); |
| 277 |
if ( ! is_array( $messages ) ) { |
| 278 |
$messages = array(); |
| 279 |
} |
| 280 |
|
| 281 |
$last = empty( $messages ) ? null : $messages[ count( $messages ) - 1 ]; |
| 282 |
|
| 283 |
$out = array( |
| 284 |
'id' => (int) $post->ID, |
| 285 |
'agentId' => $agent_id, |
| 286 |
'agentName' => $agent ? $agent->display_name : __( 'Deleted agent', 'desktop-mode' ), |
| 287 |
'agentDescription' => $agent ? (string) get_user_meta( $agent_id, '_desktop_mode_agent_description', true ) : '', |
| 288 |
'agentAvatarUrl' => function_exists( 'desktop_mode_agent_avatar_url' ) ? desktop_mode_agent_avatar_url() : '', |
| 289 |
'title' => (string) $post->post_title, |
| 290 |
// Second sidebar line + who spoke last, so the list can say |
| 291 |
// where each conversation got to instead of repeating its opener. |
| 292 |
'preview' => desktop_mode_agent_conversation_preview( $messages ), |
| 293 |
'lastRole' => is_array( $last ) && isset( $last['role'] ) ? (string) $last['role'] : '', |
| 294 |
'messageCount' => count( $messages ), |
| 295 |
'createdAt' => mysql2date( 'c', $post->post_date_gmt, false ), |
| 296 |
'updatedAt' => mysql2date( 'c', $post->post_modified_gmt, false ), |
| 297 |
); |
| 298 |
if ( $with_messages ) { |
| 299 |
$out['messages'] = $messages; |
| 300 |
} |
| 301 |
return $out; |
| 302 |
} |
| 303 |
|
| 304 |
/** |
| 305 |
* Register the conversation routes. |
| 306 |
* |
| 307 |
* Invoke-level permission gates the surface (anyone who can talk to |
| 308 |
* agents can keep their own history); ownership checks inside each |
| 309 |
* handler scope every read and write to the caller's rows. |
| 310 |
* |
| 311 |
* @return void |
| 312 |
*/ |
| 313 |
function desktop_mode_agent_conversations_register_routes() { |
| 314 |
register_rest_route( |
| 315 |
'desktop-mode/v1', |
| 316 |
'/agents/conversations', |
| 317 |
array( |
| 318 |
array( |
| 319 |
'methods' => WP_REST_Server::READABLE, |
| 320 |
'callback' => 'desktop_mode_agents_rest_conversations_list', |
| 321 |
'permission_callback' => 'desktop_mode_agents_rest_invoke_permission', |
| 322 |
), |
| 323 |
array( |
| 324 |
'methods' => WP_REST_Server::CREATABLE, |
| 325 |
'callback' => 'desktop_mode_agents_rest_conversations_create', |
| 326 |
'permission_callback' => 'desktop_mode_agents_rest_invoke_permission', |
| 327 |
'args' => array( |
| 328 |
'agentId' => array( |
| 329 |
'type' => 'integer', |
| 330 |
'required' => true, |
| 331 |
'minimum' => 1, |
| 332 |
), |
| 333 |
'messages' => array( |
| 334 |
'type' => 'array', |
| 335 |
'required' => true, |
| 336 |
), |
| 337 |
), |
| 338 |
), |
| 339 |
) |
| 340 |
); |
| 341 |
|
| 342 |
register_rest_route( |
| 343 |
'desktop-mode/v1', |
| 344 |
'/agents/conversations/(?P<id>\d+)', |
| 345 |
array( |
| 346 |
array( |
| 347 |
'methods' => WP_REST_Server::READABLE, |
| 348 |
'callback' => 'desktop_mode_agents_rest_conversations_get', |
| 349 |
'permission_callback' => 'desktop_mode_agents_rest_invoke_permission', |
| 350 |
), |
| 351 |
array( |
| 352 |
'methods' => WP_REST_Server::EDITABLE, |
| 353 |
'callback' => 'desktop_mode_agents_rest_conversations_update', |
| 354 |
'permission_callback' => 'desktop_mode_agents_rest_invoke_permission', |
| 355 |
'args' => array( |
| 356 |
'messages' => array( |
| 357 |
'type' => 'array', |
| 358 |
'required' => true, |
| 359 |
), |
| 360 |
), |
| 361 |
), |
| 362 |
array( |
| 363 |
'methods' => WP_REST_Server::DELETABLE, |
| 364 |
'callback' => 'desktop_mode_agents_rest_conversations_delete', |
| 365 |
'permission_callback' => 'desktop_mode_agents_rest_invoke_permission', |
| 366 |
), |
| 367 |
) |
| 368 |
); |
| 369 |
} |
| 370 |
add_action( 'rest_api_init', 'desktop_mode_agent_conversations_register_routes' ); |
| 371 |
|
| 372 |
/** |
| 373 |
* GET /agents/conversations — the caller's conversations, most |
| 374 |
* recently updated first, without message bodies (the list must stay |
| 375 |
* light; the sidebar fetches bodies on click). |
| 376 |
* |
| 377 |
* @return WP_REST_Response |
| 378 |
*/ |
| 379 |
function desktop_mode_agents_rest_conversations_list() { |
| 380 |
$posts = get_posts( |
| 381 |
array( |
| 382 |
'post_type' => DESKTOP_MODE_AGENT_CHAT_POST_TYPE, |
| 383 |
'post_status' => 'publish', |
| 384 |
'author' => get_current_user_id(), |
| 385 |
'numberposts' => desktop_mode_agent_conversation_cap(), |
| 386 |
'orderby' => 'modified', |
| 387 |
'order' => 'DESC', |
| 388 |
'suppress_filters' => false, |
| 389 |
) |
| 390 |
); |
| 391 |
|
| 392 |
return rest_ensure_response( |
| 393 |
array_map( 'desktop_mode_agent_conversation_prepare', $posts ) |
| 394 |
); |
| 395 |
} |
| 396 |
|
| 397 |
/** |
| 398 |
* POST /agents/conversations — create from {agentId, messages}. |
| 399 |
* |
| 400 |
* @param WP_REST_Request $request Request. |
| 401 |
* @return WP_REST_Response|WP_Error |
| 402 |
*/ |
| 403 |
function desktop_mode_agents_rest_conversations_create( WP_REST_Request $request ) { |
| 404 |
$agent_id = (int) $request['agentId']; |
| 405 |
if ( ! function_exists( 'desktop_mode_agent_is_agent' ) || ! desktop_mode_agent_is_agent( $agent_id ) ) { |
| 406 |
return new WP_Error( |
| 407 |
'desktop_mode_agent_not_found', |
| 408 |
__( 'No agent with that id exists.', 'desktop-mode' ), |
| 409 |
array( 'status' => 404 ) |
| 410 |
); |
| 411 |
} |
| 412 |
|
| 413 |
$messages = desktop_mode_agent_conversation_sanitize_messages( $request['messages'] ); |
| 414 |
if ( empty( $messages ) ) { |
| 415 |
return new WP_Error( |
| 416 |
'desktop_mode_agent_conversation_empty', |
| 417 |
__( 'A conversation needs at least one message.', 'desktop-mode' ), |
| 418 |
array( 'status' => 400 ) |
| 419 |
); |
| 420 |
} |
| 421 |
|
| 422 |
$post_id = wp_insert_post( |
| 423 |
array( |
| 424 |
'post_type' => DESKTOP_MODE_AGENT_CHAT_POST_TYPE, |
| 425 |
'post_status' => 'publish', |
| 426 |
'post_author' => get_current_user_id(), |
| 427 |
'post_title' => desktop_mode_agent_conversation_title( $messages ), |
| 428 |
// JSON survives the insert-path unslashing only when slashed. |
| 429 |
'post_content' => wp_slash( (string) wp_json_encode( $messages ) ), |
| 430 |
), |
| 431 |
true |
| 432 |
); |
| 433 |
if ( is_wp_error( $post_id ) ) { |
| 434 |
return $post_id; |
| 435 |
} |
| 436 |
update_post_meta( $post_id, '_desktop_mode_agent_chat_agent_id', $agent_id ); |
| 437 |
|
| 438 |
desktop_mode_agent_conversations_prune( get_current_user_id() ); |
| 439 |
|
| 440 |
return rest_ensure_response( |
| 441 |
desktop_mode_agent_conversation_prepare( get_post( $post_id ), true ) |
| 442 |
); |
| 443 |
} |
| 444 |
|
| 445 |
/** |
| 446 |
* GET /agents/conversations/:id — one conversation with messages. |
| 447 |
* |
| 448 |
* @param WP_REST_Request $request Request. |
| 449 |
* @return WP_REST_Response|WP_Error |
| 450 |
*/ |
| 451 |
function desktop_mode_agents_rest_conversations_get( WP_REST_Request $request ) { |
| 452 |
$post = desktop_mode_agent_conversation_get_own( (int) $request['id'] ); |
| 453 |
if ( ! $post ) { |
| 454 |
return desktop_mode_agent_conversation_not_found(); |
| 455 |
} |
| 456 |
return rest_ensure_response( |
| 457 |
desktop_mode_agent_conversation_prepare( $post, true ) |
| 458 |
); |
| 459 |
} |
| 460 |
|
| 461 |
/** |
| 462 |
* PUT /agents/conversations/:id — replace the messages. The client |
| 463 |
* owns the in-memory transcript, so full replacement after each |
| 464 |
* exchange is simpler and idempotent compared to append semantics. |
| 465 |
* |
| 466 |
* @param WP_REST_Request $request Request. |
| 467 |
* @return WP_REST_Response|WP_Error |
| 468 |
*/ |
| 469 |
function desktop_mode_agents_rest_conversations_update( WP_REST_Request $request ) { |
| 470 |
$post = desktop_mode_agent_conversation_get_own( (int) $request['id'] ); |
| 471 |
if ( ! $post ) { |
| 472 |
return desktop_mode_agent_conversation_not_found(); |
| 473 |
} |
| 474 |
|
| 475 |
$messages = desktop_mode_agent_conversation_sanitize_messages( $request['messages'] ); |
| 476 |
if ( empty( $messages ) ) { |
| 477 |
return new WP_Error( |
| 478 |
'desktop_mode_agent_conversation_empty', |
| 479 |
__( 'A conversation needs at least one message.', 'desktop-mode' ), |
| 480 |
array( 'status' => 400 ) |
| 481 |
); |
| 482 |
} |
| 483 |
|
| 484 |
$updated = wp_update_post( |
| 485 |
array( |
| 486 |
'ID' => $post->ID, |
| 487 |
'post_title' => desktop_mode_agent_conversation_title( $messages ), |
| 488 |
'post_content' => wp_slash( (string) wp_json_encode( $messages ) ), |
| 489 |
), |
| 490 |
true |
| 491 |
); |
| 492 |
if ( is_wp_error( $updated ) ) { |
| 493 |
return $updated; |
| 494 |
} |
| 495 |
|
| 496 |
return rest_ensure_response( |
| 497 |
desktop_mode_agent_conversation_prepare( get_post( $post->ID ), true ) |
| 498 |
); |
| 499 |
} |
| 500 |
|
| 501 |
/** |
| 502 |
* DELETE /agents/conversations/:id. |
| 503 |
* |
| 504 |
* @param WP_REST_Request $request Request. |
| 505 |
* @return WP_REST_Response|WP_Error |
| 506 |
*/ |
| 507 |
function desktop_mode_agents_rest_conversations_delete( WP_REST_Request $request ) { |
| 508 |
$post = desktop_mode_agent_conversation_get_own( (int) $request['id'] ); |
| 509 |
if ( ! $post ) { |
| 510 |
return desktop_mode_agent_conversation_not_found(); |
| 511 |
} |
| 512 |
wp_delete_post( $post->ID, true ); |
| 513 |
return rest_ensure_response( array( 'deleted' => true ) ); |
| 514 |
} |
| 515 |
|
| 516 |
/** |
| 517 |
* Shared 404 for missing/foreign conversations — the same error for |
| 518 |
* "does not exist" and "not yours" so ids can't be probed. |
| 519 |
* |
| 520 |
* @return WP_Error |
| 521 |
*/ |
| 522 |
function desktop_mode_agent_conversation_not_found() { |
| 523 |
return new WP_Error( |
| 524 |
'desktop_mode_agent_conversation_not_found', |
| 525 |
__( 'No conversation with that id exists.', 'desktop-mode' ), |
| 526 |
array( 'status' => 404 ) |
| 527 |
); |
| 528 |
} |
| 529 |
|
| 530 |
/** |
| 531 |
* The effective per-user conversation cap. |
| 532 |
* |
| 533 |
* @return int |
| 534 |
*/ |
| 535 |
function desktop_mode_agent_conversation_cap() { |
| 536 |
/** |
| 537 |
* Filters how many conversations are kept per user. Creating past |
| 538 |
* the cap prunes the least recently updated rows. |
| 539 |
* |
| 540 |
* @param int $cap Maximum stored conversations per user. |
| 541 |
*/ |
| 542 |
return max( 1, (int) apply_filters( 'desktop_mode_agent_conversation_cap', DESKTOP_MODE_AGENT_CONVERSATION_CAP ) ); |
| 543 |
} |
| 544 |
|
| 545 |
/** |
| 546 |
* Drop the user's oldest conversations beyond the cap. |
| 547 |
* |
| 548 |
* @param int $user_id Owner. |
| 549 |
* @return void |
| 550 |
*/ |
| 551 |
function desktop_mode_agent_conversations_prune( $user_id ) { |
| 552 |
$cap = desktop_mode_agent_conversation_cap(); |
| 553 |
$posts = get_posts( |
| 554 |
array( |
| 555 |
'post_type' => DESKTOP_MODE_AGENT_CHAT_POST_TYPE, |
| 556 |
'post_status' => 'publish', |
| 557 |
'author' => (int) $user_id, |
| 558 |
// One page past the cap is plenty — pruning runs on every create. |
| 559 |
'numberposts' => $cap + 10, |
| 560 |
// The ID tie-break matters: same-second rows are otherwise |
| 561 |
// unordered and the prune could eat the row just created. |
| 562 |
'orderby' => array( |
| 563 |
'modified' => 'DESC', |
| 564 |
'ID' => 'DESC', |
| 565 |
), |
| 566 |
'fields' => 'ids', |
| 567 |
'suppress_filters' => false, |
| 568 |
) |
| 569 |
); |
| 570 |
foreach ( array_slice( $posts, $cap ) as $stale_id ) { |
| 571 |
wp_delete_post( (int) $stale_id, true ); |
| 572 |
} |
| 573 |
} |
| 574 |
|
