public function convert(Metadata $metadata, $rules = [])
{
// Shall we trim?
$trim = isset($rules['trim']) ? $rules['trim'] : true;
if ($trim == true) {
$metadata->trimValues();
}
// Shall we include unmapped metadata?
$includeUnmapped = isset($rules['includeUnmapped']) ? $rules['includeUnmapped'] : true;
// Lets do mapping!
$convertedTags = [];
// TODO: Some mapping hack, need proper test and tidy up also proper JSON validation
// Do `simple` mapping
if (!$metadata->isEmpty() && isset($rules['rules']['simple'])) {
$simpleRules = $rules['rules']['simple'];
$engine = new SimpleMetadataEngine();
list($convertedTags, $metadata) = $engine->mapTagsSimple($metadata, $simpleRules);
}
// TODO: Some mapping hack, need proper test and tidy up also proper JSON validation
// Do `valueMap` mapping
if (!$metadata->isEmpty() && isset($rules['rules']['valueMap'])) {
$valueMapRules = $rules['rules']['valueMap'];
$engine = new ValueMapEngine();
list($valueMapTags, $metadata) = $engine->mapValueMap($metadata, $valueMapRules);
$convertedTags = array_merge_recursive($convertedTags, $valueMapTags);
}
// Fix the rest with dah default `flat` mapping
if (!$metadata->isEmpty() && $includeUnmapped === true) {
$engine = new FlatMetadataEngine();
$otherTags = ['IMSMDMetadata' => $engine->flatten($metadata)];
$convertedTags = array_merge_recursive($convertedTags, $otherTags);
}
// Avoid duplication
foreach ($convertedTags as &$tags) {
$tags = array_values(array_unique($tags));
}
return $convertedTags;
}
