AppFlowy/frontend/rust-lib/flowy-error/src/errors.rs

use std::fmt::Debug;

use anyhow::Result;
use thiserror::Error;

use flowy_derive::ProtoBuf;

use crate::code::ErrorCode;

pub type FlowyResult<T> = anyhow::Result<T, FlowyError>;

#[derive(Debug, Default, Clone, ProtoBuf, Error)]
#[error("{code:?}: {msg}")]
pub struct FlowyError {
  #[pb(index = 1)]
  pub code: i32,

  #[pb(index = 2)]
  pub msg: String,
}

macro_rules! static_flowy_error {
  ($name:ident, $code:expr) => {
    #[allow(non_snake_case, missing_docs)]
    pub fn $name() -> FlowyError {
      $code.into()
    }
  };
}

impl FlowyError {
  pub fn new<T: ToString>(code: ErrorCode, msg: T) -> Self {
    Self {
      code: code.value(),
      msg: msg.to_string(),
    }
  }
  pub fn context<T: Debug>(mut self, error: T) -> Self {
    self.msg = format!("{:?}", error);
    self
  }

  pub fn is_record_not_found(&self) -> bool {
    self.code == ErrorCode::RecordNotFound.value()
  }

  static_flowy_error!(internal, ErrorCode::Internal);
  static_flowy_error!(record_not_found, ErrorCode::RecordNotFound);
  static_flowy_error!(workspace_name, ErrorCode::WorkspaceNameInvalid);
  static_flowy_error!(workspace_id, ErrorCode::WorkspaceIdInvalid);
  static_flowy_error!(color_style, ErrorCode::AppColorStyleInvalid);
  static_flowy_error!(workspace_desc, ErrorCode::WorkspaceDescTooLong);
  static_flowy_error!(app_name, ErrorCode::AppNameInvalid);
  static_flowy_error!(invalid_app_id, ErrorCode::AppIdInvalid);
  static_flowy_error!(view_name, ErrorCode::ViewNameInvalid);
  static_flowy_error!(view_thumbnail, ErrorCode::ViewThumbnailInvalid);
  static_flowy_error!(invalid_view_id, ErrorCode::ViewIdIsInvalid);
  static_flowy_error!(view_desc, ErrorCode::ViewDescTooLong);
  static_flowy_error!(view_data, ErrorCode::ViewDataInvalid);
  static_flowy_error!(unauthorized, ErrorCode::UserUnauthorized);
  static_flowy_error!(email_empty, ErrorCode::EmailIsEmpty);
  static_flowy_error!(email_format, ErrorCode::EmailFormatInvalid);
  static_flowy_error!(email_exist, ErrorCode::EmailAlreadyExists);
  static_flowy_error!(password_empty, ErrorCode::PasswordIsEmpty);
  static_flowy_error!(passworkd_too_long, ErrorCode::PasswordTooLong);
  static_flowy_error!(
    password_forbid_char,
    ErrorCode::PasswordContainsForbidCharacters
  );
  static_flowy_error!(password_format, ErrorCode::PasswordFormatInvalid);
  static_flowy_error!(password_not_match, ErrorCode::PasswordNotMatch);
  static_flowy_error!(name_too_long, ErrorCode::UserNameTooLong);
  static_flowy_error!(
    name_forbid_char,
    ErrorCode::UserNameContainForbiddenCharacters
  );
  static_flowy_error!(name_empty, ErrorCode::UserNameIsEmpty);
  static_flowy_error!(user_id, ErrorCode::UserIdInvalid);
  static_flowy_error!(user_not_exist, ErrorCode::UserNotExist);
  static_flowy_error!(text_too_long, ErrorCode::TextTooLong);
  static_flowy_error!(invalid_data, ErrorCode::InvalidParams);
  static_flowy_error!(out_of_bounds, ErrorCode::OutOfBounds);
  static_flowy_error!(serde, ErrorCode::Serde);
  static_flowy_error!(field_record_not_found, ErrorCode::FieldRecordNotFound);
  static_flowy_error!(payload_none, ErrorCode::UnexpectedEmpty);
  static_flowy_error!(http, ErrorCode::HttpError);
  static_flowy_error!(
    unexpect_calendar_field_type,
    ErrorCode::UnexpectedCalendarFieldType
  );
}

impl std::convert::From<ErrorCode> for FlowyError {
  fn from(code: ErrorCode) -> Self {
    FlowyError {
      code: code.value(),
      msg: format!("{}", code),
    }
  }
}

pub fn internal_error<T>(e: T) -> FlowyError
where
  T: std::fmt::Debug,
{
  FlowyError::internal().context(e)
}

impl std::convert::From<std::io::Error> for FlowyError {
  fn from(error: std::io::Error) -> Self {
    FlowyError::internal().context(error)
  }
}

impl std::convert::From<protobuf::ProtobufError> for FlowyError {
  fn from(e: protobuf::ProtobufError) -> Self {
    FlowyError::internal().context(e)
  }
}

impl From<anyhow::Error> for FlowyError {
  fn from(e: anyhow::Error) -> Self {
    e.downcast::<FlowyError>()
      .unwrap_or_else(|err| FlowyError::new(ErrorCode::Internal, err))
  }
}