using @mizchi/bit/object { type Commit }

using @mizchi/bit/object { type GitError }

using @mizchi/bit/object { type HashAlgorithm }

using @mizchi/bit/object { type HashState }

using @mizchi/bit/object { type ObjectId }

using @mizchi/bit/object { type ObjectType }

using @mizchi/bit/object { type PackCompression }

using @mizchi/bit/object { type PackDeltaMode }

using @mizchi/bit/object { type PackObject }

using @mizchi/bit/object { type Sha1State }

using @mizchi/bit/object { type Sha256State }

using @mizchi/bit/object { type TreeEntry }

pub(open) trait FileSystem {
  mkdir_p(Self, String) -> Unit raise 
@mizchi/bit/object.GitError
GitError
  write_file(Self, String, Bytes) -> Unit raise 
@mizchi/bit/object.GitError
GitError
  write_string(Self, String, String) -> Unit raise 
@mizchi/bit/object.GitError
GitError
  remove_file(Self, String) -> Unit raise 
@mizchi/bit/object.GitError
GitError
  remove_dir(Self, String) -> Unit raise 
@mizchi/bit/object.GitError
GitError
}

pub(open) trait HttpClient {
  get(Self, String, Map[String, String]) -> (HttpResponse, Bytes) raise 
@mizchi/bit/object.GitError
GitError
  post(Self, String, Bytes, Map[String, String]) -> (HttpResponse, Bytes) raise 
@mizchi/bit/object.GitError
GitError
}

pub(open) trait RepoFileSystem {
  read_file(Self, String) -> Bytes raise 
@mizchi/bit/object.GitError
GitError
  readdir(Self, String) -> Array[String] raise 
@mizchi/bit/object.GitError
GitError
  is_dir(Self, String) -> Bool
  is_file(Self, String) -> Bool
}

pub struct HttpResponse {
  code : Int
  headers : Map[String, String]
}

pub struct MockHttpClient {
  responses : Map[String, (Int, Bytes)]
}