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feat: support string hlc #21

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feat: support string hlc #21

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20 changes: 19 additions & 1 deletion lib/src/crdt.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -65,8 +65,14 @@ abstract mixin class Crdt {
// - Update local canonical time if needed
changeset.forEach((table, records) {
for (final record in records) {
final recordHlc = switch (record['hlc']) {
final Hlc hlc => hlc,
final String hlc => Hlc.parse(hlc),
_ => throw InvalidHlcError(
'Invalid hlc: ${record['hlc']}', table, record),
};
try {
hlc = hlc.merge(record['hlc'] as Hlc);
hlc = hlc.merge(recordHlc);
} catch (e) {
throw MergeError(e, table, record);
}
Expand All @@ -90,6 +96,18 @@ abstract mixin class Crdt {
}
}

/// Thrown on merge errors when the hlc is invalid or not present.
class InvalidHlcError {
final Object? hlc;
final String table;
final Map<String, Object?> record;

InvalidHlcError(this.hlc, this.table, this.record);

@override
String toString() => 'Invalid hlc: $hlc.\n$table: $record';
}

/// Thrown on merge errors. Contains the failed payload to help with debugging
/// large datasets.
class MergeError<T> {
Expand Down