refactor: multi-turn 세션 제거 (ask --session, chat_sessions/turns) + V015 drop migration
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//! p9-fb-17: `ChatSessionRepo` impl for `SqliteStore`. Verifies the
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//! V005 schema, insert/list/delete, monotonic turn_index, and
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//! ON DELETE CASCADE.
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use kebab_config::Config;
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use kebab_core::traits::{ChatSessionRepo, ChatSessionRow, ChatTurnRow};
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use kebab_store_sqlite::SqliteStore;
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use tempfile::TempDir;
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fn config_for(tmp: &TempDir) -> Config {
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let mut c = Config::defaults();
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c.storage.data_dir = tmp.path().to_string_lossy().into_owned();
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c
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}
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fn open_store(tmp: &TempDir) -> SqliteStore {
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let cfg = config_for(tmp);
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let store = SqliteStore::open(&cfg).unwrap();
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store.run_migrations().unwrap();
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store
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}
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fn make_session(id: &str) -> ChatSessionRow {
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ChatSessionRow {
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session_id: id.to_string(),
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created_at: 1_700_000_000,
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updated_at: 1_700_000_000,
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title: Some(format!("Title for {id}")),
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config_snapshot_json: r#"{"prompt_template_version":"rag-v2","llm.model":"gemma4:e4b"}"#
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.to_string(),
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}
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}
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fn make_turn(session_id: &str, index: u32) -> ChatTurnRow {
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ChatTurnRow {
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turn_id: format!("turn-{session_id}-{index:08x}"),
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session_id: session_id.to_string(),
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turn_index: index,
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question: format!("Q{index} for {session_id}?"),
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answer: format!("A{index} for {session_id}."),
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citations_json: "[]".to_string(),
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created_at: 1_700_000_000 + i64::from(index),
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}
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}
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#[test]
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fn create_get_roundtrip() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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let session = make_session("sess-1");
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store.create_session(&session).unwrap();
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let fetched = store
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.get_session("sess-1")
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.unwrap()
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.expect("session present");
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assert_eq!(fetched, session);
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}
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#[test]
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fn get_missing_session_returns_none() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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assert!(store.get_session("nope").unwrap().is_none());
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}
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#[test]
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fn create_session_pk_collision_errors() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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let session = make_session("dup");
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store.create_session(&session).unwrap();
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let err = store.create_session(&session).unwrap_err();
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assert!(
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format!("{err:#}").contains("UNIQUE")
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|| format!("{err:#}").contains("constraint")
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|| format!("{err:#}").to_lowercase().contains("primary key"),
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"expected PK collision error: {err:#}"
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);
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}
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#[test]
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fn append_turn_then_list_in_order() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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store.create_session(&make_session("multi")).unwrap();
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for i in 0..3 {
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store.append_turn(&make_turn("multi", i)).unwrap();
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}
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let turns = store.list_turns("multi").unwrap();
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assert_eq!(turns.len(), 3);
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for (i, t) in turns.iter().enumerate() {
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assert_eq!(t.turn_index as usize, i);
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assert_eq!(t.question, format!("Q{i} for multi?"));
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}
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}
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#[test]
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fn append_turn_collides_on_same_index() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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store.create_session(&make_session("dup-turn")).unwrap();
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store.append_turn(&make_turn("dup-turn", 0)).unwrap();
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let err = store.append_turn(&make_turn("dup-turn", 0)).unwrap_err();
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assert!(
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format!("{err:#}").to_lowercase().contains("unique")
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|| format!("{err:#}").to_lowercase().contains("constraint")
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|| format!("{err:#}").to_lowercase().contains("primary key"),
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"expected unique constraint: {err:#}"
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);
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}
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#[test]
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fn append_turn_bumps_session_updated_at() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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let session = make_session("bump");
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store.create_session(&session).unwrap();
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let pre = store.get_session("bump").unwrap().unwrap().updated_at;
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let mut t = make_turn("bump", 0);
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t.created_at = pre + 100;
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store.append_turn(&t).unwrap();
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let post = store.get_session("bump").unwrap().unwrap().updated_at;
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assert_eq!(
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post,
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pre + 100,
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"updated_at must follow latest turn's created_at"
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);
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}
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#[test]
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fn delete_session_cascades_to_turns() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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store.create_session(&make_session("cascade")).unwrap();
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for i in 0..2 {
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store.append_turn(&make_turn("cascade", i)).unwrap();
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}
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store.delete_session("cascade").unwrap();
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assert!(store.get_session("cascade").unwrap().is_none());
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assert_eq!(
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store.list_turns("cascade").unwrap().len(),
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0,
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"ON DELETE CASCADE must wipe orphan turns"
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);
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}
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#[test]
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fn list_sessions_orders_by_updated_at_desc() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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let mut a = make_session("a");
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a.updated_at = 100;
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let mut b = make_session("b");
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b.updated_at = 300;
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let mut c = make_session("c");
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c.updated_at = 200;
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store.create_session(&a).unwrap();
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store.create_session(&b).unwrap();
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store.create_session(&c).unwrap();
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let listed = store.list_sessions(10).unwrap();
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let ids: Vec<_> = listed.iter().map(|s| s.session_id.clone()).collect();
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assert_eq!(ids, vec!["b", "c", "a"]);
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}
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#[test]
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fn list_sessions_respects_limit() {
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let tmp = TempDir::new().unwrap();
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let store = open_store(&tmp);
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for i in 0..5 {
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store
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.create_session(&make_session(&format!("s{i}")))
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.unwrap();
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}
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assert_eq!(store.list_sessions(2).unwrap().len(), 2);
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assert_eq!(store.list_sessions(100).unwrap().len(), 5);
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}
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