videre_api/
error.rs

1/// Errors returned by videre-api operations. Each consumer maps these to its
2/// own convention (axum -> StatusCode, other embedders -> their own error type).
3#[derive(Debug)]
4pub enum Error {
5    /// The target row/label does not exist.
6    NotFound,
7    /// Caller-supplied input was rejected (e.g. an empty label after sanitizing).
8    Invalid,
9    /// Underlying database failure.
10    Db(rusqlite::Error),
11    /// Any other failure surfaced as a plain message (e.g. from videre-core
12    /// functions that return anyhow::Error, like pipeline_runs).
13    Other(String),
14}
15
16impl From<rusqlite::Error> for Error {
17    fn from(e: rusqlite::Error) -> Self {
18        Error::Db(e)
19    }
20}
21
22impl From<anyhow::Error> for Error {
23    fn from(e: anyhow::Error) -> Self {
24        Error::Other(e.to_string())
25    }
26}
27
28impl std::fmt::Display for Error {
29    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
30        match self {
31            Error::NotFound => write!(f, "not found"),
32            Error::Invalid => write!(f, "invalid input"),
33            Error::Db(e) => write!(f, "database error: {e}"),
34            Error::Other(msg) => write!(f, "{msg}"),
35        }
36    }
37}
38
39impl std::error::Error for Error {}
40
41pub type Result<T> = std::result::Result<T, Error>;
42
43#[cfg(test)]
44mod tests {
45    use super::*;
46
47    #[test]
48    fn display_matches_each_variant() {
49        assert_eq!(Error::NotFound.to_string(), "not found");
50        assert_eq!(Error::Invalid.to_string(), "invalid input");
51        assert_eq!(Error::Other("boom".to_string()).to_string(), "boom");
52    }
53
54    #[test]
55    fn display_for_db_variant_includes_the_underlying_error() {
56        let e = Error::Db(rusqlite::Error::QueryReturnedNoRows);
57        assert!(e.to_string().starts_with("database error: "));
58        assert!(e.to_string().contains("Query returned no rows"));
59    }
60
61    #[test]
62    fn from_rusqlite_error_wraps_as_db_variant() {
63        let e: Error = rusqlite::Error::QueryReturnedNoRows.into();
64        assert!(matches!(e, Error::Db(_)));
65    }
66
67    #[test]
68    fn from_anyhow_error_wraps_message_as_other_variant() {
69        let e: Error = anyhow::anyhow!("something broke").into();
70        match e {
71            Error::Other(msg) => assert_eq!(msg, "something broke"),
72            other => panic!("expected Error::Other, got {other:?}"),
73        }
74    }
75}
videre_api/error.rs

videre_api/
error.rs
