1 files changed, 64 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..f7796b8
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,64 @@
+#[derive(Debug)]
+pub enum TdlibSysError {
+    LogLevelOutOfBounds(u16),
+    Nul(usize),
+    UtfDecode,
+    CannotSetLogFile,
+}
+
+impl std::error::Error for TdlibSysError {}
+
+impl std::convert::From<std::ffi::NulError> for TdlibSysError {
+    fn from(nul_err: std::ffi::NulError) -> Self {
+        Self::Nul(nul_err.nul_position())
+    }
+}
+
+impl std::fmt::Display for TdlibSysError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        use TdlibSysError::*;
+        match self {
+            LogLevelOutOfBounds(lvl) => {
+                write!(f, "Log level should be less than 1024. Found {}", lvl)
+            }
+            Nul(pos) => write!(f, "String contains nul byte at pos: {}", pos),
+            UtfDecode => write!(f, "String is not utf8 encoded"),
+            CannotSetLogFile => write!(f, "Could not set log file"),
+        }
+    }
+}
+
+#[derive(Debug, thiserror::Error)]
+pub enum TgError {
+    /// Something went wrong, when (de)serializing shit
+    #[error("Something went wrong, when (de)serializing shit: {}", .0)]
+    Serde(#[from] serde_json::Error),
+
+    /// tdlib-sys error
+    #[error("tdlib-sys error: {}", .0)]
+    TdSys(#[from] TdlibSysError),
+
+    #[error("@type must not be in your structure used as Request")]
+    HasTypeInJson,
+
+    #[error("@type must be string in JsonValue used as Request")]
+    HasNoTypeInJson,
+
+    #[error("json is invalid: {}", .0)]
+    InvalidJson(String),
+
+    #[error("core channel has been closed unexpectedly")]
+    ChannelClosed,
+
+    #[error("telegram replied with error code: {code} and message: {msg}")]
+    TelegramError { code: i32, msg: String },
+}
+
+impl<T> std::convert::From<crossbeam::channel::SendError<T>> for TgError {
+    fn from(_: crossbeam::channel::SendError<T>) -> Self {
+        Self::ChannelClosed
+    }
+}
+
+pub type Error = TgError;
+pub type Result<T> = std::result::Result<T, Error>;