public override Task <Reply> IncreaseTag(IncDecTagRequest request, ServerCallContext context)
{
return(IncreaseOrDecreaseTag(request, 1));
}
private async Task <Reply> IncreaseOrDecreaseTag(IncDecTagRequest request, int inc)
{
var reply = new Reply();
if (!Guid.TryParse(request.TagId, out var tagId) || !Guid.TryParse(request.FileId, out var fileId))
{
reply.Error = Error.InvalidArguments;
return(reply);
}
var tag = await _tagsService.All().FirstOrDefaultAsync(t => t.Id == tagId);
if (tag == null)
{
reply.Error = Error.NoSuchEntity;
return(reply);
}
var file = await _service.All().Include(f => f.FileTags).FirstOrDefaultAsync(f => f.Id == fileId);
if (file == null)
{
reply.Error = Error.NoSuchEntity;
return(reply);
}
var editableTags = await _keyValueService.All()
.FirstOrDefaultAsync(kv => kv.Id == ServerKeys.IncreaseTags.Key);
if (editableTags == null || string.IsNullOrWhiteSpace(editableTags.Value))
{
reply.Error = Error.InvalidOperation;
return(reply);
}
var canEdit = editableTags.Value.Split(' ').Any(s => s.Trim() == tag.Name);
if (!canEdit)
{
reply.Error = Error.InvalidOperation;
return(reply);
}
file.FileTags ??= new List <Domain.Models.FileTag>();
var fileTag = file.FileTags.FirstOrDefault(t => t.TagId == tagId);
if (fileTag == null)
{
fileTag = new Domain.Models.FileTag
{
TagId = tagId,
FileId = fileId,
Value = Math.Max(inc, 0).ToString()
};
file.FileTags.Add(fileTag);
}
else
{
if (!int.TryParse(fileTag.Value, out var cur))
{
cur = 0;
}
fileTag.Value = Math.Max(cur + inc, 0).ToString();
}
await _service.Update(file);
return(reply);
}