public static EventStoreProjection BuildProjectionDefinition(EventStoreProjectionParameters parameters)
{
var body = $"fromStreams({CreateSourceStreams(parameters.SourceStreamNames)}).when({{{CreateBody(parameters)}}})";
return(new EventStoreProjection {
Name = parameters.Name, Source = body
});
}
static string CreateBody(EventStoreProjectionParameters parameters)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < parameters.EventsToInclude.Length; i++)
{
if (IsNotFirstElement(i))
{
sb.Append(",");
}
sb.Append($"{parameters.EventsToInclude[i].Name}: function(s,e){{linkTo('{parameters.DestinationStreamName}', e);return s;}}");
}
return(sb.ToString());
}