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Add generic comments API with normalized SocialComment shape #106

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Merged
chubes4 merged 1 commit into from
Mar 30, 2026
Merged

Add generic comments API with normalized SocialComment shape #106

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2 changes: 2 additions & 0 deletions data-machine-socials.php
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Original file line number Diff line number Diff line change
Expand Up @@ -199,6 +199,8 @@ function datamachine_socials_enqueue_assets( $hook ) {
require_once DATAMACHINE_SOCIALS_PATH . 'inc/Cli/Commands/BlueskyCommand.php';
require_once DATAMACHINE_SOCIALS_PATH . 'inc/Cli/Commands/LinkedInCommand.php';
require_once DATAMACHINE_SOCIALS_PATH . 'inc/Cli/Commands/SharesCommand.php';
require_once DATAMACHINE_SOCIALS_PATH . 'inc/Cli/Commands/CommentsCommand.php';
WP_CLI::add_command( 'datamachine-socials comments', \DataMachineSocials\Cli\Commands\CommentsCommand::class );
WP_CLI::add_command( 'datamachine-socials linkedin', \DataMachineSocials\Cli\Commands\LinkedInCommand::class );
WP_CLI::add_command( 'datamachine-socials pinterest', \DataMachineSocials\Cli\Commands\PinterestCommand::class );
WP_CLI::add_command( 'datamachine-socials reddit', \DataMachineSocials\Cli\Commands\RedditCommand::class );
Expand Down
159 changes: 153 additions & 6 deletions inc/Abilities/Instagram/InstagramReadAbility.php
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,11 @@ class InstagramReadAbility {

const GRAPH_API_URL = 'https://graph.instagram.com';

/**
* Regex for extracting @mentions from comment text.
*/
const MENTION_REGEX = '/@([a-zA-Z0-9._]{1,30})/';

/**
* Fields to request when listing media.
*/
Expand Down Expand Up @@ -59,12 +64,12 @@ private function registerAbilities(): void {
'input_schema' => array(
'type' => 'object',
'properties' => array(
'action' => array(
'type' => 'string',
'enum' => array( 'list', 'get', 'comments' ),
'default' => 'list',
'description' => __( 'Action: list (recent posts), get (single post), comments (post comments)', 'data-machine-socials' ),
),
'action' => array(
'type' => 'string',
'enum' => array( 'list', 'get', 'comments', 'comments_all' ),
'default' => 'list',
'description' => __( 'Action: list (recent posts), get (single post), comments (one page), comments_all (all pages, normalized)', 'data-machine-socials' ),
),
'media_id' => array(
'type' => 'string',
'description' => __( 'Instagram media ID (required for get and comments actions)', 'data-machine-socials' ),
Expand Down Expand Up @@ -159,6 +164,15 @@ public function execute( array $input ): array {
}
return $this->getComments( $access_token, $input['media_id'], $input );

case 'comments_all':
if ( empty( $input['media_id'] ) ) {
return array(
'success' => false,
'error' => 'media_id is required for the comments_all action',
);
}
return $this->getAllComments( $access_token, $input['media_id'] );

default:
return array(
'success' => false,
Expand Down Expand Up @@ -325,6 +339,139 @@ private function getComments( string $access_token, string $media_id, array $inp
);
}

/**
* Fetch ALL comments for a media item, auto-paginating through every page.
*
* Returns comments in the normalized SocialComment shape used across all
* platforms. This enables generic consumers (giveaway picker, CLI, pipelines)
* to work without platform-specific knowledge.
*
* @param string $access_token Valid access token.
* @param string $media_id Instagram media ID.
* @return array Result with normalized comments.
*/
private function getAllComments( string $access_token, string $media_id ): array {
$all_comments = array();
$after = '';
$page = 0;
$max_pages = 200; // Safety limit: 200 pages × 50 comments = 10,000 comments max.

do {
$page++;
$params = array(
'fields' => 'id,text,timestamp,username,like_count',
'limit' => 50, // Max per page for Instagram API.
'access_token' => $access_token,
);

if ( ! empty( $after ) ) {
$params['after'] = $after;
}

$url = self::GRAPH_API_URL . "/{$media_id}/comments?" . http_build_query( $params );
$result = HttpClient::get( $url, array( 'context' => 'Instagram Comments All' ) );

if ( ! $result['success'] ) {
// If we already have some comments, return them with a warning.
if ( ! empty( $all_comments ) ) {
return array(
'success' => true,
'data' => array(
'comments' => $all_comments,
'count' => count( $all_comments ),
'platform' => 'instagram',
'partial' => true,
'error' => 'Pagination interrupted: ' . ( $result['error'] ?? 'unknown' ),
),
);
}

return array(
'success' => false,
'error' => 'Instagram API request failed: ' . ( $result['error'] ?? 'unknown' ),
);
}

$data = json_decode( $result['data'], true );
$http_code = $result['status_code'];

if ( 200 !== $http_code || isset( $data['error'] ) ) {
if ( ! empty( $all_comments ) ) {
return array(
'success' => true,
'data' => array(
'comments' => $all_comments,
'count' => count( $all_comments ),
'platform' => 'instagram',
'partial' => true,
'error' => $data['error']['message'] ?? 'Pagination error',
),
);
}

return array(
'success' => false,
'error' => $data['error']['message'] ?? 'Failed to fetch comments',
);
}

$page_comments = $data['data'] ?? array();

foreach ( $page_comments as $comment ) {
$all_comments[] = self::normalizeComment( $comment );
}

// Check for next page.
$paging = $data['paging'] ?? array();
$after = $paging['cursors']['after'] ?? '';

$has_next = ! empty( $paging['next'] ) && ! empty( $after );

} while ( $has_next && $page < $max_pages );

return array(
'success' => true,
'data' => array(
'comments' => $all_comments,
'count' => count( $all_comments ),
'platform' => 'instagram',
'partial' => false,
'pages' => $page,
),
);
}

/**
* Normalize an Instagram comment into the generic SocialComment shape.
*
* Shape: { id, platform, author_username, text, timestamp, like_count,
* reply_count, mentions, parent_id, raw }
*
* @param array $comment Raw Instagram API comment data.
* @return array Normalized comment.
*/
public static function normalizeComment( array $comment ): array {
$text = $comment['text'] ?? '';
$mentions = array();

if ( preg_match_all( self::MENTION_REGEX, $text, $matches ) ) {
$mentions = array_values( array_unique( $matches[1] ) );
}

return array(
'id' => $comment['id'] ?? '',
'platform' => 'instagram',
'author_username' => $comment['username'] ?? '',
'text' => $text,
'timestamp' => $comment['timestamp'] ?? '',
'like_count' => (int) ( $comment['like_count'] ?? 0 ),
'reply_count' => 0, // Instagram top-level comments endpoint doesn't include reply count.
'mentions' => $mentions,
'parent_id' => null, // Top-level comments; replies would be fetched separately.
'raw' => $comment,
);
}

/**
* Get the Instagram auth provider.
*
Expand Down
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