anda_db 0.7.27

//! Error types for schema module
use anda_db_btree::BTreeError;
use anda_db_hnsw::HnswError;
use anda_db_tfs::BM25Error;
use thiserror::Error;

use crate::schema::{BoxError, SchemaError};

/// Anda DB related errors
#[derive(Error, Debug)]
pub enum DBError {
    #[error("Anda DB {name:?} error: {source:?}")]
    Generic { name: String, source: BoxError },

    #[error("Collection {name:?} error: {source:?}")]
    Collection { name: String, source: BoxError },

    #[error("Schema error: {source:?}")]
    Schema { name: String, source: BoxError },

    #[error("Storage error: {source:?}")]
    Storage { name: String, source: BoxError },

    #[error("Index error: {source:?}")]
    Index { name: String, source: BoxError },

    #[error("Object {name} at location {path} not found: {source:?}")]
    NotFound {
        name: String,
        path: String,
        source: BoxError,
        _id: u64,
    },

    #[error("Object {name} at location {path} already exists: {source:?}")]
    AlreadyExists {
        name: String,
        path: String,
        source: BoxError,
        _id: u64,
    },

    #[error("Precondition failed at location {path}: {source:?}")]
    Precondition { path: String, source: BoxError },

    #[error("Serialization error: {source:?}")]
    Serialization { name: String, source: BoxError },

    #[error("Payload too large at location {path}: size {size} exceeds limit {limit}")]
    PayloadTooLarge {
        path: String,
        size: usize,
        limit: usize,
    },
}

impl From<object_store::Error> for DBError {
    fn from(err: object_store::Error) -> Self {
        match err {
            object_store::Error::NotFound { path, source } => DBError::NotFound {
                name: "unknown".to_string(),
                path,
                source,
                _id: 0,
            },
            object_store::Error::AlreadyExists { path, source } => DBError::AlreadyExists {
                name: "unknown".to_string(),
                path,
                source,
                _id: 0,
            },
            object_store::Error::Precondition { path, source } => {
                DBError::Precondition { path, source }
            }
            err => DBError::Storage {
                name: "unknown".to_string(),
                source: err.into(),
            },
        }
    }
}

impl From<SchemaError> for DBError {
    fn from(err: SchemaError) -> Self {
        DBError::Schema {
            name: "unknown".to_string(),
            source: err.into(),
        }
    }
}

impl From<BTreeError> for DBError {
    fn from(err: BTreeError) -> Self {
        match &err {
            BTreeError::Generic { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            BTreeError::Serialization { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            BTreeError::NotFound { name, id, .. } => DBError::NotFound {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: id.as_u64().unwrap_or(0),
                source: err.into(),
            },
            BTreeError::AlreadyExists { name, id, .. } => DBError::AlreadyExists {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: id.as_u64().unwrap_or(0),
                source: err.into(),
            },
        }
    }
}

impl From<HnswError> for DBError {
    fn from(err: HnswError) -> Self {
        match &err {
            HnswError::Generic { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            HnswError::Serialization { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            HnswError::DimensionMismatch { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            HnswError::NotFound { name, id, .. } => DBError::NotFound {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: *id,
                source: err.into(),
            },
            HnswError::AlreadyExists { name, id, .. } => DBError::AlreadyExists {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: *id,
                source: err.into(),
            },
        }
    }
}

impl From<BM25Error> for DBError {
    fn from(err: BM25Error) -> Self {
        match &err {
            BM25Error::Generic { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            BM25Error::Serialization { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            BM25Error::TokenizeFailed { name, .. } => DBError::Index {
                name: name.clone(),
                source: err.into(),
            },
            BM25Error::NotFound { name, id, .. } => DBError::NotFound {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: *id,
                source: err.into(),
            },
            BM25Error::AlreadyExists { name, id, .. } => DBError::AlreadyExists {
                name: name.clone(),
                path: "unknown".to_string(),
                _id: *id,
                source: err.into(),
            },
        }
    }
}