#[derive(Debug, snafu::Snafu)]
#[snafu(visibility = "pub")]
pub enum Error {
    #[snafu(display("failed to create block mode decryptor: {}", source))]
    CreateBlockMode {
        source: block_modes::InvalidKeyIvLength,
    },

    #[snafu(display("failed to decrypt: {}", source))]
    Decrypt { source: block_modes::BlockModeError },

    #[snafu(display("failed to parse pinentry output ({:?})", out))]
    FailedToParsePinentry { out: String },

    #[snafu(display(
        "failed to run editor {}: {:?}",
        editor.to_string_lossy(),
        res
    ))]
    FailedToRunEditor {
        editor: std::path::PathBuf,
        res: std::process::ExitStatus,
    },

    #[snafu(display("failed to expand with hkdf"))]
    HkdfExpand,

    #[snafu(display("username or password incorrect"))]
    IncorrectPassword,

    #[snafu(display("invalid base64: {}", source))]
    InvalidBase64 { source: base64::DecodeError },

    #[snafu(display("invalid cipherstring"))]
    InvalidCipherString,

    #[snafu(display("invalid value for $EDITOR: {}", editor.to_string_lossy()))]
    InvalidEditor { editor: std::ffi::OsString },

    #[snafu(display("invalid mac"))]
    InvalidMac,

    #[snafu(display("failed to load config: {}", source))]
    LoadConfig { source: std::io::Error },

    #[snafu(display("failed to load config: {}", source))]
    LoadConfigAsync { source: tokio::io::Error },

    #[snafu(display("failed to load config: {}", source))]
    LoadConfigJson { source: serde_json::Error },

    #[snafu(display("failed to load db: {}", source))]
    LoadDb { source: std::io::Error },

    #[snafu(display("failed to load db: {}", source))]
    LoadDbAsync { source: tokio::io::Error },

    #[snafu(display("failed to load db: {}", source))]
    LoadDbJson { source: serde_json::Error },

    #[snafu(display("pbkdf2 requires at least 1 iteration (got 0)"))]
    Pbkdf2ZeroIterations,

    #[snafu(display("pinentry cancelled"))]
    PinentryCancelled,

    #[snafu(display("pinentry error: {}", error))]
    PinentryErrorMessage { error: String },

    #[snafu(display("error reading pinentry output: {}", source))]
    PinentryReadOutput { source: tokio::io::Error },

    #[snafu(display("error waiting for pinentry to exit: {}", source))]
    PinentryWait { source: tokio::io::Error },

    #[snafu(display("failed to remove db: {}", source))]
    RemoveDb { source: std::io::Error },

    #[snafu(display("api request returned error: {}", status))]
    RequestFailed { status: u16 },

    #[snafu(display("api request unauthorized"))]
    RequestUnauthorized,

    #[snafu(display("error making api request: {}", source))]
    Reqwest { source: reqwest::Error },

    #[snafu(display("failed to save config: {}", source))]
    SaveConfig { source: std::io::Error },

    #[snafu(display("failed to save config: {}", source))]
    SaveConfigJson { source: serde_json::Error },

    #[snafu(display("failed to save db: {}", source))]
    SaveDb { source: std::io::Error },

    #[snafu(display("failed to save db: {}", source))]
    SaveDbAsync { source: tokio::io::Error },

    #[snafu(display("failed to save db: {}", source))]
    SaveDbJson { source: serde_json::Error },

    #[snafu(display("error spawning pinentry: {}", source))]
    Spawn { source: tokio::io::Error },

    #[snafu(display("error writing to pinentry stdin: {}", source))]
    WriteStdin { source: tokio::io::Error },
}

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