use thiserror::Error;

/// Error messages for cull-gmail
#[derive(Debug, Error)]
pub enum Error {
    /// Invalid paging mode option
    #[error("Invalid paging mode option")]
    InvalidPagingMode,
    /// Configuration directory not set
    #[error("Configuration directory not set")]
    DirectoryUnset,
    /// Expansion of home directory in `{0}` failed
    #[error("Expansion of home directory in `{0}` failed")]
    HomeExpansionFailed(String),
    /// No labels found in mailbox
    #[error("No labels found in mailbox")]
    NoLabelsFound,
    /// No rule selector specified (i.e. --id or --label)
    #[error("No rule selector specified (i.e. --id or --label)")]
    NoRuleSelector,
    /// No rule for label
    #[error("No rule for label {0}")]
    NoRuleFoundForLabel(String),
    /// No rule for label
    #[error("No query string calculated for rule #{0}")]
    NoQueryStringCalculated(usize),
    /// No label found in the mailbox
    #[error("Label {0} not found in the mailbox")]
    LabelNotFoundInMailbox(String),
    /// Rule not found for ID
    #[error("No rule for id {0}")]
    RuleNotFound(usize),
    /// Label not found in the rule set
    #[error("Label `{0}` not found in the rule set")]
    LabelNotFoundInRules(String),
    /// Directory creation failed for `{0}`
    #[error("Directory creation failed for `{0:?}`")]
    DirectoryCreationFailed((String, Box<std::io::Error>)),
    /// Error from the google_gmail1 crate
    #[error(transparent)]
    GoogleGmail1(#[from] Box<google_gmail1::Error>),
    /// Error from std::io
    #[error(transparent)]
    StdIO(#[from] std::io::Error),
    /// Error from toml_de
    #[error(transparent)]
    TomlDe(#[from] toml::de::Error),
    /// Error from config
    #[error(transparent)]
    Config(#[from] config::ConfigError),
    /// Invalid message age specification
    #[error("Invalid message age: {0}")]
    InvalidMessageAge(String),
}