use thiserror::Error;

#[derive(Error, Debug)]
pub enum PortholeError {
    #[error(
        "invalid name '{0}' (use 1-64 chars: letters, digits, '_' or '-'; \
         must start with a letter or digit)"
    )]
    InvalidName(String),

    #[error("no profile named '{0}'")]
    NotFound(String),

    #[error("profile '{0}' already exists (use 'edit' to modify it)")]
    AlreadyExists(String),

    #[error("exactly one of -l/--local, -r/--remote, -d/--dynamic is required")]
    NoMappingKind,

    #[error("only one of -l/--local, -r/--remote, -d/--dynamic may be given")]
    MultipleMappingKinds,

    #[error("invalid forward spec '{0}': expected [BIND:]PORT:HOST:PORT (or [BIND:]PORT for -d)")]
    InvalidMapping(String),

    #[error("invalid --via hop '{0}': expected [USER@]HOST[:PORT]")]
    InvalidVia(String),

    #[error("--via is required: at least one hop (connection target)")]
    NoViaHosts,

    #[error("nothing to do: {0}")]
    NothingToDo(String),

    #[error("'{0}' failed to start: {1}")]
    OpenFailed(String, String),

    #[error(transparent)]
    Io(#[from] std::io::Error),

    #[error("state file error: {0}")]
    Serde(String),
}

pub type Result<T> = std::result::Result<T, PortholeError>;

impl From<toml::de::Error> for PortholeError {
    fn from(e: toml::de::Error) -> Self {
        PortholeError::Serde(e.to_string())
    }
}

impl From<toml::ser::Error> for PortholeError {
    fn from(e: toml::ser::Error) -> Self {
        PortholeError::Serde(e.to_string())
    }
}

impl From<serde_json::Error> for PortholeError {
    fn from(e: serde_json::Error) -> Self {
        PortholeError::Serde(e.to_string())
    }
}