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<?php
class FacetWP_Diff
{
/**
* Compare "facetwp_settings" with "facetwp_settings_last_index" to determine
* whether the user needs to rebuild the index
* @since 3.0.9
*/
function is_reindex_needed() {
$s1 = FWP()->helper->load_settings();
$s2 = FWP()->helper->load_settings( true );
// Compare settings
$to_check = [ 'thousands_separator', 'decimal_separator', 'wc_enable_variations', 'wc_index_all' ];
foreach ( $to_check as $name ) {
$attr1 = $this->get_attr( $name, $s1['settings'] );
$attr2 = $this->get_attr( $name, $s2['settings'] );
if ( $attr1 !== $attr2 ) {
return true;
}
}
// Get facets, removing non-indexable ones
$f1 = array_filter( $s1['facets'], [ $this, 'is_indexable' ] );
$f2 = array_filter( $s2['facets'], [ $this, 'is_indexable' ] );
// The facet count is different
if ( count( $f1 ) !== count( $f2 ) ) {
return true;
}
// Sort the facets alphabetically
usort( $f1, function( $a, $b ) {
return strcmp( $a['name'], $b['name'] );
});
usort( $f2, function( $a, $b ) {
return strcmp( $a['name'], $b['name'] );
});
// Compare facet properties
$to_check = [ 'name', 'type', 'source', 'source_other', 'parent_term', 'hierarchical', 'modifier_type', 'modifier_values' ];
foreach ( $f1 as $index => $facet ) {
foreach ( $to_check as $attr ) {
$attr1 = $this->get_attr( $attr, $facet );
$attr2 = $this->get_attr( $attr, $f2[ $index ] );
if ( $attr1 !== $attr2 ) {
return true;
}
}
}
return false;
}
function is_indexable( $facet ) {
return ! in_array( $facet['type'], [ 'search', 'pager', 'reset', 'sort' ] );
}
/**
* Get an array element
* @since 3.0.9
*/
function get_attr( $name, $collection ) {
return $collection[ $name ] ?? false;
}
}