kanban_persistence/
error.rs

1use thiserror::Error;
2
3#[derive(Error, Debug)]
4pub enum PersistenceError {
5    #[error("IO error: {0}")]
6    Io(#[from] std::io::Error),
7
8    #[error("serialization error: {0}")]
9    Serialization(String),
10
11    #[error("database error: {0}")]
12    Database(String),
13
14    #[error("unsupported storage locator {locator:?}; supported: {}", supported.join(", "))]
15    UnsupportedLocator {
16        locator: String,
17        supported: Vec<String>,
18    },
19
20    #[error("file conflict: {path} was modified by another instance")]
21    ConflictDetected {
22        path: String,
23        #[source]
24        source: Option<Box<dyn std::error::Error + Send + Sync>>,
25    },
26
27    #[error("unsupported operation: {0}")]
28    Unsupported(String),
29}
30
31pub type PersistenceResult<T> = Result<T, PersistenceError>;
32
33impl From<PersistenceError> for kanban_domain::KanbanError {
34    fn from(e: PersistenceError) -> Self {
35        match e {
36            PersistenceError::Io(io) => kanban_domain::KanbanError::Io(io),
37            PersistenceError::Serialization(s) => kanban_domain::KanbanError::Serialization(s),
38            PersistenceError::Database(s) => kanban_domain::KanbanError::Database(s),
39            PersistenceError::UnsupportedLocator { locator, supported } => {
40                kanban_domain::KanbanError::Internal(format!(
41                    "No backend registered for {:?}. Available backends: {}",
42                    locator,
43                    if supported.is_empty() {
44                        "none".to_string()
45                    } else {
46                        supported.join(", ")
47                    }
48                ))
49            }
50            PersistenceError::ConflictDetected { path, source } => {
51                kanban_domain::KanbanError::ConflictDetected { path, source }
52            }
53            PersistenceError::Unsupported(s) => kanban_domain::KanbanError::Internal(s),
54        }
55    }
56}
kanban_persistence/error.rs

kanban_persistence/
error.rs
