async Task <(string?, Stream?)> GetJsonStreamAsync(ZipArchive zipArchive, string fileName)
{
_dotLottieFile = await DotLottieFile.FromZipArchiveAsync(zipArchive);
if (_dotLottieFile is null)
{
return(null, null);
}
var firstAnimation = _dotLottieFile.Animations[0];
return(fileName, firstAnimation.Open());
}
static bool ProcessDotLottieFile(
CommandLineOptions options,
Reporter reporter,
string filePath,
string outputFolder,
DateTime timestamp)
{
using var fileStream = TryOpenFile(filePath, reporter);
if (fileStream is null)
{
return(false);
}
ZipArchive zipArchive;
try
{
zipArchive = new ZipArchive(fileStream, ZipArchiveMode.Read);
}
catch (InvalidDataException e)
{
using (reporter.ErrorStream.Lock())
{
reporter.WriteError($"File {filePath} is not a valid .lottie file.");
reporter.WriteError(e.Message);
}
return(false);
}
var dotLottieFile = DotLottieFile.FromZipArchive(zipArchive);
if (dotLottieFile is null)
{
reporter.WriteError($"File {filePath} is not a valid .lottie file.");
return(false);
}
if (dotLottieFile.Animations.Count == 0)
{
reporter.WriteError($"File {filePath} contains no animations.");
return(false);
}
var succeeded = true;
foreach (var animation in dotLottieFile.Animations)
{
var jsonPath = $"{filePath}{animation.Path}";
using var jsonStream = animation.Open();
if (jsonStream == null)
{
reporter.WriteError($"Failed to read from {jsonPath}.");
succeeded = false;
continue;
}
// The name of the class should reflect the name of the .lottie file,
// but if there are multiple .json files in the .lottie file then we
// need to differentiate them by adding the file name.
var className = dotLottieFile.Animations.Count == 1
? GetClassName(filePath)
: GetClassName($"{filePath}_{animation.Id}");
if (!LottieJsonFileProcessor.ProcessLottieJsonFile(
options: options,
reporter: reporter,
sourceFilePath: filePath,
jsonFilePath: jsonPath,
className: className,
jsonStream: jsonStream,
outputFolder: outputFolder,
timestamp))
{
succeeded = false;
}
}
return(succeeded);
}