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<?php |
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/** |
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* Reconciliation feed sanity guard. |
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* |
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* Pure function (no WordPress dependency) so it can be unit tested in |
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* isolation. Reconciliation deletes every local listing absent from the MLS |
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* feed; a well-formed but truncated feed would therefore trigger a mass |
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* deletion. This decides whether the feed is a plausible size before any |
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* deletion is allowed. |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly |
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} |
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|
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/** Feed must carry at least this fraction of the local ListingKey count. */ |
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const MLSIMPORT_RECONCILIATION_MIN_FEED_FRACTION = 0.8; |
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|
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/** |
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* Whether the reconciliation feed is a plausible size relative to the local set. |
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* |
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* @param int $feed_count Number of ListingKeys returned by the MLS feed. |
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* @param int $local_count Number of local listings carrying a ListingKey. |
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* @return bool True when reconciliation may proceed. |
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*/ |
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function mlsimport_reconciliation_feed_is_plausible( int $feed_count, int $local_count ): bool { |
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// With no local listings there is nothing to reconcile against; refuse. |
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if ( $local_count <= 0 ) { |
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return false; |
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} |
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// Plausible only when the feed covers at least the required fraction of locals. |
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return $feed_count >= $local_count * MLSIMPORT_RECONCILIATION_MIN_FEED_FRACTION; |
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} |
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