asepharyana
29a9fae3f6
chore: fix all 702 clippy warnings across codebase - auto-fix 475 via cargo clippy --fix - fix remaining 227 manually: uninlined_format_args, redundant_closure, match_same_arms, underscore_binding, format_push_string, items_after_statements, needless_pass_by_value, clone_on_copy, case_sensitive_extension, single_match/let-else, write_with_newline, and other clippy lints
69 lines
2.4 KiB
Rust
69 lines
2.4 KiB
Rust
//! Binary blob storage in the message-log `SQLite` database (e.g. images,
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//! attachments), keyed by session id and an arbitrary blob key.
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use rusqlite::{Connection, params};
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use anyhow::Result;
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/// Insert or overwrite a blob for a session under `blob_key`.
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///
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/// Flow: compute current timestamp → `INSERT OR REPLACE` into `blobs`
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/// keyed on `(session_id, blob_key)`.
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///
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/// Return: `Ok(())` on success, or the underlying `SQLite` error.
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pub fn store_blob(conn: &Connection, session_id: &str, blob_key: &str, data: &[u8], mime_type: Option<&str>) -> Result<()> {
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let created_at = chrono::Utc::now().timestamp_millis();
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conn.execute(
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"INSERT OR REPLACE INTO blobs (session_id, blob_key, data, mime_type, created_at) VALUES (?1, ?2, ?3, ?4, ?5)",
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params![session_id, blob_key, data, mime_type, created_at],
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)?;
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Ok(())
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}
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/// Fetch a blob's bytes for a session by key.
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///
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/// Return: `Ok(Some(data))` if found, `Ok(None)` if no matching row
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/// exists, `Err` for any other `SQLite` failure.
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pub fn retrieve_blob(conn: &Connection, session_id: &str, blob_key: &str) -> Result<Option<Vec<u8>>> {
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let result = conn.query_row(
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"SELECT data FROM blobs WHERE session_id = ?1 AND blob_key = ?2",
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params![session_id, blob_key],
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|row| row.get(0),
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);
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match result {
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Ok(data) => Ok(Some(data)),
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Err(rusqlite::Error::QueryReturnedNoRows) => Ok(None),
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Err(e) => Err(e.into()),
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}
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}
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/// Delete a blob for a session by key.
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///
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/// Return: `Ok(true)` if a row was deleted, `Ok(false)` if no matching
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/// row existed.
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#[allow(dead_code)]
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pub fn delete_blob(conn: &Connection, session_id: &str, blob_key: &str) -> Result<bool> {
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let rows = conn.execute(
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"DELETE FROM blobs WHERE session_id = ?1 AND blob_key = ?2",
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params![session_id, blob_key],
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)?;
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Ok(rows > 0)
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}
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/// List all blob keys stored for a session, oldest first.
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///
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/// Return: `Ok(Vec<String>)` of keys ordered by `created_at`, or the
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/// underlying `SQLite` error.
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pub fn list_blob_keys(conn: &Connection, session_id: &str) -> Result<Vec<String>> {
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let mut stmt = conn.prepare(
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"SELECT blob_key FROM blobs WHERE session_id = ?1 ORDER BY created_at ASC"
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)?;
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let rows = stmt.query_map(params![session_id], |row| {
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row.get::<_, String>(0)
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})?;
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let mut keys = Vec::new();
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for row in rows {
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keys.push(row?);
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}
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Ok(keys)
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}
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