| 1 | //! Engine-owned Context Lens and Whalesong event projection. |
| 2 | //! |
| 3 | //! A prepared packet is NOT proof of context delivery. Only the trusted engine |
| 4 | //! can acknowledge append/dispatch. No tool can upgrade its own authority. |
| 5 | use crate::store::Tx; |
| 6 | use crate::{ |
| 7 | Access, Capability, ContextBudget, ContextPacket, Error, Freshness, Memory, MemoryBackend, |
| 8 | MemoryRef, Recall, RecallReport, Result, Scope, Snapshot, Store, TokenCounter, compile_context, |
| 9 | policy, |
| 10 | }; |
| 11 | use rusqlite::{OptionalExtension, params}; |
| 12 | use serde::{Deserialize, Serialize}; |
| 13 | use serde_json::{Value, json}; |
| 14 | use std::collections::BTreeMap; |
| 15 | use uuid::Uuid; |
| 16 | |
| 17 | #[derive(Debug, Clone, Default, Serialize, Deserialize)] |
| 18 | pub struct Preferences { |
| 19 | pub revision: i64, |
| 20 | pub pinned: bool, |
| 21 | pub suppressed: bool, |
| 22 | } |
| 23 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 24 | pub struct LensEntry { |
| 25 | pub memory: Memory, |
| 26 | pub freshness: Freshness, |
| 27 | pub preferences: Preferences, |
| 28 | pub in_contexts: Vec<String>, |
| 29 | } |
| 30 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 31 | pub struct ContextReceipt { |
| 32 | pub id: String, |
| 33 | pub trace_id: String, |
| 34 | pub stage: String, |
| 35 | pub packet_hash: String, |
| 36 | pub created_at: i64, |
| 37 | pub appended_at: Option<i64>, |
| 38 | pub dispatched_at: Option<i64>, |
| 39 | pub used_units: usize, |
| 40 | pub unit: String, |
| 41 | pub omitted: usize, |
| 42 | pub selected: Vec<MemoryRef>, |
| 43 | /// Current knowledge cannot rewrite what a previous request contained. |
| 44 | pub invalidated_ids: Vec<String>, |
| 45 | } |
| 46 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 47 | pub struct LensSnapshot { |
| 48 | pub schema: String, |
| 49 | pub entries: Vec<LensEntry>, |
| 50 | pub next_after: Option<String>, |
| 51 | pub contexts: Vec<ContextReceipt>, |
| 52 | pub as_of: i64, |
| 53 | pub can_review: bool, |
| 54 | pub can_forget: bool, |
| 55 | pub can_dispatch: bool, |
| 56 | } |
| 57 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 58 | pub struct PreparedContext { |
| 59 | pub receipt: ContextReceipt, |
| 60 | pub packet: ContextPacket, |
| 61 | } |
| 62 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 63 | pub struct EventPage { |
| 64 | pub schema: String, |
| 65 | pub producer: String, |
| 66 | pub epoch: String, |
| 67 | pub events: Vec<Value>, |
| 68 | pub next_after: i64, |
| 69 | pub has_more: bool, |
| 70 | /// A filtered feed's seq gaps are not evidence of dropped records. |
| 71 | pub sequence_domain: String, |
| 72 | } |
| 73 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 74 | pub struct HistoricalMemory { |
| 75 | pub memory: Memory, |
| 76 | pub known_at: i64, |
| 77 | pub valid_at: i64, |
| 78 | pub history_starts_at: i64, |
| 79 | pub valid: bool, |
| 80 | /// Historical file contents are not reconstructed by this API. |
| 81 | pub repository_freshness: String, |
| 82 | } |
| 83 | |
| 84 | fn identity(value: &str) -> Result<()> { |
| 85 | if value.is_empty() |
| 86 | || value.len() > 128 |
| 87 | || !value |
| 88 | .bytes() |
| 89 | .all(|b| b.is_ascii_alphanumeric() || b"_-.:".contains(&b)) |
| 90 | { |
| 91 | return Err(Error::Invalid("expected a bounded opaque identity".into())); |
| 92 | } |
| 93 | Ok(()) |
| 94 | } |
| 95 | #[allow(clippy::too_many_arguments)] |
| 96 | fn metadata_event( |
| 97 | conn: &rusqlite::Connection, |
| 98 | scope: &Scope, |
| 99 | entity: &str, |
| 100 | revision: i64, |
| 101 | action: &str, |
| 102 | now: i64, |
| 103 | trace: Option<&str>, |
| 104 | context: Option<&str>, |
| 105 | units: Option<usize>, |
| 106 | unit: Option<&str>, |
| 107 | ) -> Result<()> { |
| 108 | conn.execute("INSERT INTO memory_outbox(scope,entity_id,revision,action,recorded_at,trace_id,context_id,units,unit) VALUES(?1,?2,?3,?4,?5,?6,?7,?8,?9)", |
| 109 | params![scope.key()?,entity,revision,action,now,trace,context,units.map(|n|n as i64),unit])?; |
| 110 | Ok(()) |
| 111 | } |
| 112 | |
| 113 | impl Store { |
| 114 | pub fn preferences(&self, access: &Access, id: &str) -> Result<Preferences> { |
| 115 | self.get(access, id)?; |
| 116 | Ok(self |
| 117 | .conn |
| 118 | .query_row( |
| 119 | "SELECT revision,pinned,suppressed FROM memory_preferences WHERE memory_id=?1", |
| 120 | [id], |
| 121 | |r| { |
| 122 | Ok(Preferences { |
| 123 | revision: r.get(0)?, |
| 124 | pinned: r.get(1)?, |
| 125 | suppressed: r.get(2)?, |
| 126 | }) |
| 127 | }, |
| 128 | ) |
| 129 | .optional()? |
| 130 | .unwrap_or_default()) |
| 131 | } |
| 132 | /// A pin affects context packing; it never bypasses validity, scope or review. |
| 133 | /// Suppression affects future recall only, not context already sent. |
| 134 | pub fn set_preferences( |
| 135 | &self, |
| 136 | access: &Access, |
| 137 | id: &str, |
| 138 | expected: i64, |
| 139 | pinned: bool, |
| 140 | suppressed: bool, |
| 141 | ) -> Result<Preferences> { |
| 142 | if !(0..i64::MAX).contains(&expected) { |
| 143 | return Err(Error::Invalid("invalid preference revision".into())); |
| 144 | } |
| 145 | let tx = Tx::begin(&self.conn)?; |
| 146 | let m = self.get(access, id)?; |
| 147 | access.write(&m.draft.scope, Capability::Review)?; |
| 148 | let old = self.preferences(access, id)?; |
| 149 | if old.revision == expected + 1 && old.pinned == pinned && old.suppressed == suppressed { |
| 150 | tx.commit()?; |
| 151 | return Ok(old); |
| 152 | } |
| 153 | if old.revision != expected { |
| 154 | return Err(Error::RevisionConflict); |
| 155 | } |
| 156 | self.conn.execute("INSERT INTO memory_preferences(memory_id,revision,pinned,suppressed) VALUES(?1,?2,?3,?4) ON CONFLICT(memory_id) DO UPDATE SET revision=excluded.revision,pinned=excluded.pinned,suppressed=excluded.suppressed", |
| 157 | params![id,expected+1,pinned,suppressed])?; |
| 158 | metadata_event( |
| 159 | &self.conn, |
| 160 | &m.draft.scope, |
| 161 | id, |
| 162 | m.revision, |
| 163 | if suppressed { |
| 164 | "suppressed" |
| 165 | } else if pinned { |
| 166 | "pinned" |
| 167 | } else { |
| 168 | "unrestricted" |
| 169 | }, |
| 170 | self.timestamp(), |
| 171 | None, |
| 172 | None, |
| 173 | None, |
| 174 | None, |
| 175 | )?; |
| 176 | let flags = match (pinned, suppressed) { |
| 177 | (true, true) => "preferences:11", |
| 178 | (true, false) => "preferences:10", |
| 179 | (false, true) => "preferences:01", |
| 180 | (false, false) => "preferences:00", |
| 181 | }; |
| 182 | self.conn.execute( |
| 183 | "UPDATE memory_outbox SET reason_code=?1 WHERE seq=last_insert_rowid()", |
| 184 | [flags], |
| 185 | )?; |
| 186 | tx.commit()?; |
| 187 | Ok(Preferences { |
| 188 | revision: expected + 1, |
| 189 | pinned, |
| 190 | suppressed, |
| 191 | }) |
| 192 | } |
| 193 | pub fn lens_snapshot( |
| 194 | &self, |
| 195 | access: &Access, |
| 196 | trace: Option<&str>, |
| 197 | after: Option<&str>, |
| 198 | limit: usize, |
| 199 | snapshot: &Snapshot, |
| 200 | ) -> Result<LensSnapshot> { |
| 201 | let tx = Tx::begin(&self.conn)?; |
| 202 | let limit = limit.clamp(1, 100); |
| 203 | let mut records = self.list(access, after, limit + 1)?; |
| 204 | let more = records.len() > limit; |
| 205 | records.truncate(limit); |
| 206 | let contexts = self.context_receipts(access, trace, snapshot)?; |
| 207 | let mut entries = Vec::new(); |
| 208 | for m in records { |
| 209 | let preferences = self.preferences(access, &m.id)?; |
| 210 | let freshness = self.freshness(access, &m, snapshot)?; |
| 211 | let in_contexts = contexts |
| 212 | .iter() |
| 213 | .filter(|c| c.stage != "prepared" && c.selected.iter().any(|r| r.id == m.id)) |
| 214 | .map(|c| c.id.clone()) |
| 215 | .collect(); |
| 216 | entries.push(LensEntry { |
| 217 | memory: m, |
| 218 | freshness, |
| 219 | preferences, |
| 220 | in_contexts, |
| 221 | }); |
| 222 | } |
| 223 | let next_after = if more { |
| 224 | entries.last().map(|e| e.memory.id.clone()) |
| 225 | } else { |
| 226 | None |
| 227 | }; |
| 228 | let out = LensSnapshot { |
| 229 | schema: "codewhale.memory.lens/v1".into(), |
| 230 | entries, |
| 231 | next_after, |
| 232 | contexts, |
| 233 | as_of: self.timestamp(), |
| 234 | can_review: access.has(Capability::Review), |
| 235 | can_forget: access.has(Capability::Forget), |
| 236 | can_dispatch: access.has(Capability::ContextDispatch), |
| 237 | }; |
| 238 | tx.commit()?; |
| 239 | Ok(out) |
| 240 | } |
| 241 | /// Two clocks: status known by `known_at`, fact valid at `valid_at`. |
| 242 | /// Later supersession is not leaked into historical status. Forgotten content |
| 243 | /// is unavailable at every cutoff. Migrated stores expose only known history. |
| 244 | pub fn memory_as_of( |
| 245 | &self, |
| 246 | access: &Access, |
| 247 | id: &str, |
| 248 | known_at: i64, |
| 249 | valid_at: i64, |
| 250 | ) -> Result<HistoricalMemory> { |
| 251 | if known_at < 0 || valid_at < 0 || known_at > self.timestamp() { |
| 252 | return Err(Error::Invalid("invalid historical cutoff".into())); |
| 253 | } |
| 254 | let tx = Tx::begin(&self.conn)?; |
| 255 | let mut memory = self.get(access, id)?; |
| 256 | let (revision,status,recorded): (i64,String,i64)=self.conn.query_row( |
| 257 | "SELECT revision,status,recorded_at FROM memory_history WHERE memory_id=?1 AND recorded_at<=?2 ORDER BY seq DESC LIMIT 1", |
| 258 | params![id,known_at],|r|Ok((r.get(0)?,r.get(1)?,r.get(2)?))).optional()?.ok_or(Error::NotFound)?; |
| 259 | let starts = self.conn.query_row( |
| 260 | "SELECT min(recorded_at) FROM memory_history WHERE memory_id=?1", |
| 261 | [id], |
| 262 | |r| r.get(0), |
| 263 | )?; |
| 264 | memory.revision = revision; |
| 265 | memory.status = crate::Status::parse(&status)?; |
| 266 | memory.updated_at = recorded; |
| 267 | let d = &memory.draft; |
| 268 | let valid = d.valid_from.is_none_or(|t| t <= valid_at) |
| 269 | && d.valid_until.is_none_or(|t| valid_at < t) |
| 270 | && d.expires_at.is_none_or(|t| valid_at < t); |
| 271 | let result = HistoricalMemory { |
| 272 | memory, |
| 273 | known_at, |
| 274 | valid_at, |
| 275 | history_starts_at: starts, |
| 276 | valid, |
| 277 | repository_freshness: "not_reconstructed".into(), |
| 278 | }; |
| 279 | tx.commit()?; |
| 280 | Ok(result) |
| 281 | } |
| 282 | /// The read-only half of `prepare_context`: filtered recall plus explicit |
| 283 | /// pins, compiled into a packet — with no receipt recorded. Host surfaces |
| 284 | /// that assemble the same bytes but have no session scope to attest |
| 285 | /// (previews, reports, frozen prompts) must use this so the traced and |
| 286 | /// untraced paths can never diverge on pin membership or packet shape. |
| 287 | pub fn context_packet( |
| 288 | &self, |
| 289 | access: &Access, |
| 290 | query: &Recall, |
| 291 | counter: &dyn TokenCounter, |
| 292 | budget: &ContextBudget, |
| 293 | ) -> Result<(RecallReport, ContextPacket)> { |
| 294 | let mut q = query.clone(); |
| 295 | q.include_stale = false; |
| 296 | let mut report = self.recall(access, &q)?; |
| 297 | // Explicit pins are included even when outside the lexical shortlist. |
| 298 | let pinned: Vec<String> = { |
| 299 | let mut stmt=self.conn.prepare("SELECT p.memory_id FROM memory_preferences p JOIN memories m ON m.id=p.memory_id WHERE p.pinned=1 AND p.suppressed=0 AND m.scope IN(SELECT value FROM json_each(?1)) ORDER BY p.memory_id LIMIT 64")?; |
| 300 | stmt.query_map([access.scope_json()?], |r| r.get(0))? |
| 301 | .collect::<rusqlite::Result<Vec<_>>>()? |
| 302 | }; |
| 303 | for id in &pinned { |
| 304 | if report.hits.iter().any(|h| &h.memory.id == id) { |
| 305 | continue; |
| 306 | } |
| 307 | let memory = self.get(access, id)?; |
| 308 | let freshness = self.freshness(access, &memory, &query.snapshot)?; |
| 309 | if freshness == Freshness::Current { |
| 310 | report.hits.push(crate::Hit { |
| 311 | memory, |
| 312 | freshness, |
| 313 | score: 0.0, |
| 314 | reasons: vec!["explicit_pin".into()], |
| 315 | }); |
| 316 | } |
| 317 | } |
| 318 | report.hits.sort_by_key(|h| !pinned.contains(&h.memory.id)); |
| 319 | let packet = compile_context(&report.hits, counter, budget)?; |
| 320 | Ok((report, packet)) |
| 321 | } |
| 322 | /// Called by the host at a meaningful retrieval boundary, not every token. |
| 323 | /// Idempotent within a trace + host request key. Text is returned, not logged. |
| 324 | #[allow(clippy::too_many_arguments)] |
| 325 | pub fn prepare_context( |
| 326 | &self, |
| 327 | access: &Access, |
| 328 | context_scope: &Scope, |
| 329 | trace: &str, |
| 330 | request_key: &str, |
| 331 | query: &Recall, |
| 332 | counter: &dyn TokenCounter, |
| 333 | budget: &ContextBudget, |
| 334 | ) -> Result<PreparedContext> { |
| 335 | access.write(context_scope, Capability::ContextDispatch)?; |
| 336 | identity(trace)?; |
| 337 | identity(request_key)?; |
| 338 | if context_scope.session.is_none() { |
| 339 | return Err(Error::Invalid( |
| 340 | "context receipts require a session scope".into(), |
| 341 | )); |
| 342 | } |
| 343 | let tx = Tx::begin(&self.conn)?; |
| 344 | let input_hash = policy::sha256(&serde_json::to_vec( |
| 345 | &json!({"q":query.query,"snapshot":query.snapshot, |
| 346 | "limit":query.limit,"embedding":query.embedding,"graph":query.expand_graph,"vector_cap":query.vector_scan_limit, |
| 347 | "scopes":access.scope_json()?,"budget":[budget.max_units,budget.max_bytes,budget.max_entries],"unit":counter.unit()}), |
| 348 | )?); |
| 349 | let (report, packet) = self.context_packet(access, query, counter, budget)?; |
| 350 | let packet_hash = policy::sha256(packet.text.as_bytes()); |
| 351 | let old:Option<(String,String,String)>=self.conn.query_row("SELECT id,input_hash,packet_hash FROM memory_contexts WHERE scope=?1 AND trace_id=?2 AND request_key=?3", |
| 352 | params![context_scope.key()?,trace,request_key],|r|Ok((r.get(0)?,r.get(1)?,r.get(2)?))).optional()?; |
| 353 | if let Some((id, old_input, old_packet)) = old { |
| 354 | if old_input != input_hash { |
| 355 | return Err(Error::IdempotencyConflict); |
| 356 | } |
| 357 | if old_packet != packet_hash { |
| 358 | return Err(Error::RevisionConflict); |
| 359 | } |
| 360 | let receipt = self |
| 361 | .context_receipts(access, Some(trace), &query.snapshot)? |
| 362 | .into_iter() |
| 363 | .find(|c| c.id == id) |
| 364 | .ok_or(Error::NotFound)?; |
| 365 | tx.commit()?; |
| 366 | return Ok(PreparedContext { receipt, packet }); |
| 367 | } |
| 368 | let id = Uuid::new_v4().to_string(); |
| 369 | let now = self.timestamp(); |
| 370 | self.conn.execute("INSERT INTO memory_contexts(id,scope,trace_id,request_key,input_hash,packet_hash,stage,created_at,used_units,unit,omitted) VALUES(?1,?2,?3,?4,?5,?6,'prepared',?7,?8,?9,?10)", |
| 371 | params![id,context_scope.key()?,trace,request_key,input_hash,packet_hash,now,packet.used_units as i64,packet.unit,packet.omitted as i64])?; |
| 372 | for (position, r) in packet.selected.iter().enumerate() { |
| 373 | self.conn.execute("INSERT INTO memory_context_refs(context_id,memory_id,revision,content_hash,position) VALUES(?1,?2,?3,?4,?5)",params![id,r.id,r.revision,r.content_hash,position as i64])?; |
| 374 | } |
| 375 | for hit in &report.hits { |
| 376 | metadata_event( |
| 377 | &self.conn, |
| 378 | &hit.memory.draft.scope, |
| 379 | &hit.memory.id, |
| 380 | hit.memory.revision, |
| 381 | "retrieved", |
| 382 | now, |
| 383 | Some(trace), |
| 384 | Some(&id), |
| 385 | None, |
| 386 | None, |
| 387 | )?; |
| 388 | } |
| 389 | for r in &packet.selected { |
| 390 | let memory = self.get(access, &r.id)?; |
| 391 | metadata_event( |
| 392 | &self.conn, |
| 393 | &memory.draft.scope, |
| 394 | &r.id, |
| 395 | r.revision, |
| 396 | "context_prepared", |
| 397 | now, |
| 398 | Some(trace), |
| 399 | Some(&id), |
| 400 | Some(packet.used_units), |
| 401 | Some(&packet.unit), |
| 402 | )?; |
| 403 | } |
| 404 | let receipt = self |
| 405 | .context_receipts(access, Some(trace), &query.snapshot)? |
| 406 | .into_iter() |
| 407 | .find(|c| c.id == id) |
| 408 | .ok_or(Error::NotFound)?; |
| 409 | tx.commit()?; |
| 410 | Ok(PreparedContext { receipt, packet }) |
| 411 | } |
| 412 | /// Before-action gate. The host must serialize this check and append/dispatch |
| 413 | /// against mutations within its single owner. The acknowledgement is separate. |
| 414 | pub fn preflight_context( |
| 415 | &self, |
| 416 | access: &Access, |
| 417 | id: &str, |
| 418 | packet_hash: &str, |
| 419 | snapshot: &Snapshot, |
| 420 | ) -> Result<()> { |
| 421 | access.require(Capability::ContextDispatch)?; |
| 422 | let tx = Tx::begin(&self.conn)?; |
| 423 | let stored:Option<String>=self.conn.query_row("SELECT packet_hash FROM memory_contexts WHERE id=?1 AND scope IN(SELECT value FROM json_each(?2))",params![id,access.scope_json()?],|r|r.get(0)).optional()?; |
| 424 | if stored.as_deref() != Some(packet_hash) { |
| 425 | return Err(Error::RevisionConflict); |
| 426 | } |
| 427 | for r in self.context_refs(id)? { |
| 428 | let m = self.get(access, &r.id)?; |
| 429 | if m.revision != r.revision |
| 430 | || m.content_hash != r.content_hash |
| 431 | || self.freshness(access, &m, snapshot)? != Freshness::Current |
| 432 | || self.preferences(access, &r.id)?.suppressed |
| 433 | { |
| 434 | return Err(Error::RevisionConflict); |
| 435 | } |
| 436 | } |
| 437 | tx.commit()?; |
| 438 | Ok(()) |
| 439 | } |
| 440 | /// Invoke ONLY after the engine has durably appended these exact packet bytes. |
| 441 | /// An error means missing acknowledgement, not permission to append twice. |
| 442 | pub fn acknowledge_append( |
| 443 | &self, |
| 444 | access: &Access, |
| 445 | id: &str, |
| 446 | packet_hash: &str, |
| 447 | history_sequence: i64, |
| 448 | snapshot: &Snapshot, |
| 449 | ) -> Result<()> { |
| 450 | access.require(Capability::ContextDispatch)?; |
| 451 | if history_sequence < 0 { |
| 452 | return Err(Error::Invalid("invalid history sequence".into())); |
| 453 | } |
| 454 | self.advance_context( |
| 455 | access, |
| 456 | id, |
| 457 | packet_hash, |
| 458 | Some(history_sequence), |
| 459 | None, |
| 460 | snapshot, |
| 461 | ) |
| 462 | } |
| 463 | /// Invoke after a transport dispatch. Does not claim provider acceptance, |
| 464 | /// successful execution, useful recall, or causal attribution of an outcome. |
| 465 | pub fn acknowledge_dispatch( |
| 466 | &self, |
| 467 | access: &Access, |
| 468 | id: &str, |
| 469 | packet_hash: &str, |
| 470 | transport_key: &str, |
| 471 | snapshot: &Snapshot, |
| 472 | ) -> Result<()> { |
| 473 | access.require(Capability::ContextDispatch)?; |
| 474 | identity(transport_key)?; |
| 475 | self.advance_context(access, id, packet_hash, None, Some(transport_key), snapshot) |
| 476 | } |
| 477 | fn advance_context( |
| 478 | &self, |
| 479 | access: &Access, |
| 480 | id: &str, |
| 481 | hash: &str, |
| 482 | history: Option<i64>, |
| 483 | transport: Option<&str>, |
| 484 | snapshot: &Snapshot, |
| 485 | ) -> Result<()> { |
| 486 | let tx = Tx::begin(&self.conn)?; |
| 487 | let (scope,trace,stage,stored_hash,old_history,old_transport):(String,String,String,String,Option<i64>,Option<String>)= |
| 488 | self.conn.query_row("SELECT scope,trace_id,stage,packet_hash,history_sequence,transport_key FROM memory_contexts WHERE id=?1 AND scope IN(SELECT value FROM json_each(?2))",params![id,access.scope_json()?],|r|Ok((r.get(0)?,r.get(1)?,r.get(2)?,r.get(3)?,r.get(4)?,r.get(5)?))).optional()?.ok_or(Error::NotFound)?; |
| 489 | let scope: Scope = serde_json::from_str(&scope)?; |
| 490 | access.write(&scope, Capability::ContextDispatch)?; |
| 491 | if hash != stored_hash { |
| 492 | return Err(Error::RevisionConflict); |
| 493 | } |
| 494 | if let Some(n) = history |
| 495 | && let Some(old) = old_history |
| 496 | { |
| 497 | return if old == n { |
| 498 | Ok(()) |
| 499 | } else { |
| 500 | Err(Error::IdempotencyConflict) |
| 501 | }; |
| 502 | } |
| 503 | if let Some(key) = transport |
| 504 | && let Some(old) = old_transport |
| 505 | { |
| 506 | return if old == key { |
| 507 | Ok(()) |
| 508 | } else { |
| 509 | Err(Error::IdempotencyConflict) |
| 510 | }; |
| 511 | } |
| 512 | let expected = if history.is_some() { |
| 513 | "prepared" |
| 514 | } else { |
| 515 | "appended" |
| 516 | }; |
| 517 | if stage != expected { |
| 518 | return Err(Error::InvalidState); |
| 519 | } |
| 520 | let refs = self.context_refs(id)?; |
| 521 | // This records an already-observed engine action, even when knowledge |
| 522 | // became stale afterwards. `preflight_context` is the BEFORE-action gate. |
| 523 | // Lens inspection marks invalidated references without rewriting history. |
| 524 | let _ = snapshot; |
| 525 | let now = self.timestamp(); |
| 526 | let (next, action) = if history.is_some() { |
| 527 | ("appended", "context_appended") |
| 528 | } else { |
| 529 | ("dispatched", "context_dispatched") |
| 530 | }; |
| 531 | if let Some(sequence) = history { |
| 532 | self.conn.execute("UPDATE memory_contexts SET stage='appended',appended_at=?2,history_sequence=?3 WHERE id=?1",params![id,now,sequence])?; |
| 533 | } else { |
| 534 | self.conn.execute("UPDATE memory_contexts SET stage='dispatched',dispatched_at=?2,transport_key=?3 WHERE id=?1",params![id,now,transport])?; |
| 535 | } |
| 536 | for r in refs { |
| 537 | let m = self.get(access, &r.id)?; |
| 538 | metadata_event( |
| 539 | &self.conn, |
| 540 | &m.draft.scope, |
| 541 | &r.id, |
| 542 | r.revision, |
| 543 | action, |
| 544 | now, |
| 545 | Some(&trace), |
| 546 | Some(id), |
| 547 | None, |
| 548 | None, |
| 549 | )?; |
| 550 | } |
| 551 | let _ = next; |
| 552 | tx.commit()?; |
| 553 | Ok(()) |
| 554 | } |
| 555 | fn context_refs(&self, id: &str) -> Result<Vec<MemoryRef>> { |
| 556 | let mut q=self.conn.prepare("SELECT memory_id,revision,content_hash FROM memory_context_refs WHERE context_id=?1 ORDER BY position")?; |
| 557 | Ok(q.query_map([id], |r| { |
| 558 | Ok(MemoryRef { |
| 559 | id: r.get(0)?, |
| 560 | revision: r.get(1)?, |
| 561 | content_hash: r.get(2)?, |
| 562 | }) |
| 563 | })? |
| 564 | .collect::<rusqlite::Result<Vec<_>>>()?) |
| 565 | } |
| 566 | pub fn context_receipts( |
| 567 | &self, |
| 568 | access: &Access, |
| 569 | trace: Option<&str>, |
| 570 | snapshot: &Snapshot, |
| 571 | ) -> Result<Vec<ContextReceipt>> { |
| 572 | access.require(Capability::Read)?; |
| 573 | if let Some(t) = trace { |
| 574 | identity(t)?; |
| 575 | } |
| 576 | let mut stmt=self.conn.prepare("SELECT id,trace_id,stage,packet_hash,created_at,appended_at,dispatched_at,used_units,unit,omitted FROM memory_contexts WHERE scope IN(SELECT value FROM json_each(?1)) AND (?2 IS NULL OR trace_id=?2) ORDER BY created_at DESC,rowid DESC LIMIT 100")?; |
| 577 | let mut receipts = stmt |
| 578 | .query_map(params![access.scope_json()?, trace], |r| { |
| 579 | Ok(ContextReceipt { |
| 580 | id: r.get(0)?, |
| 581 | trace_id: r.get(1)?, |
| 582 | stage: r.get(2)?, |
| 583 | packet_hash: r.get(3)?, |
| 584 | created_at: r.get(4)?, |
| 585 | appended_at: r.get(5)?, |
| 586 | dispatched_at: r.get(6)?, |
| 587 | used_units: r.get::<_, i64>(7)? as usize, |
| 588 | unit: r.get(8)?, |
| 589 | omitted: r.get::<_, i64>(9)? as usize, |
| 590 | selected: vec![], |
| 591 | invalidated_ids: vec![], |
| 592 | }) |
| 593 | })? |
| 594 | .collect::<rusqlite::Result<Vec<_>>>()?; |
| 595 | for c in &mut receipts { |
| 596 | let refs = self.context_refs(&c.id)?; |
| 597 | // Fail closed on a narrower capability grant; never reveal a referenced |
| 598 | // global/private identity merely because the caller can read a session. |
| 599 | for r in refs { |
| 600 | let m = match self.get(access, &r.id) { |
| 601 | Ok(m) => m, |
| 602 | Err(Error::NotFound) => continue, |
| 603 | Err(e) => return Err(e), |
| 604 | }; |
| 605 | if m.revision != r.revision |
| 606 | || m.content_hash != r.content_hash |
| 607 | || self.freshness(access, &m, snapshot)? != Freshness::Current |
| 608 | || self.preferences(access, &r.id)?.suppressed |
| 609 | { |
| 610 | c.invalidated_ids.push(r.id.clone()); |
| 611 | } |
| 612 | c.selected.push(r); |
| 613 | } |
| 614 | } |
| 615 | Ok(receipts) |
| 616 | } |
| 617 | /// Metadata-only Whalesong event-v1 export. UUIDs/hashes/timing are linkable, |
| 618 | /// not anonymous. No body/title/evidence URI/query/embedding enters the feed. |
| 619 | pub fn event_page(&self, access: &Access, after: i64, limit: usize) -> Result<EventPage> { |
| 620 | access.require(Capability::Read)?; |
| 621 | if after < 0 { |
| 622 | return Err(Error::Invalid("negative cursor".into())); |
| 623 | } |
| 624 | let (producer, epoch): (String, String) = self.conn.query_row( |
| 625 | "SELECT producer,epoch FROM memory_observer WHERE singleton=1", |
| 626 | [], |
| 627 | |r| Ok((r.get(0)?, r.get(1)?)), |
| 628 | )?; |
| 629 | let mut q=self.conn.prepare("SELECT seq,scope,entity_id,revision,action,recorded_at,trace_id,context_id,units,unit,reason_code FROM memory_outbox WHERE seq>?1 AND scope IN(SELECT value FROM json_each(?2)) ORDER BY seq LIMIT ?3")?; |
| 630 | let limit = limit.clamp(1, 500); |
| 631 | let records = q |
| 632 | .query_map( |
| 633 | params![after, access.scope_json()?, (limit + 1) as i64], |
| 634 | |r| { |
| 635 | Ok(( |
| 636 | r.get::<_, i64>(0)?, |
| 637 | r.get::<_, String>(1)?, |
| 638 | r.get::<_, String>(2)?, |
| 639 | r.get::<_, i64>(3)?, |
| 640 | r.get::<_, String>(4)?, |
| 641 | r.get::<_, i64>(5)?, |
| 642 | r.get::<_, Option<String>>(6)?, |
| 643 | r.get::<_, Option<String>>(7)?, |
| 644 | r.get::<_, Option<i64>>(8)?, |
| 645 | r.get::<_, Option<String>>(9)?, |
| 646 | r.get::<_, Option<String>>(10)?, |
| 647 | )) |
| 648 | }, |
| 649 | )? |
| 650 | .collect::<rusqlite::Result<Vec<_>>>()?; |
| 651 | let more = records.len() > limit; |
| 652 | let mut cursor = after; |
| 653 | let mut events = Vec::new(); |
| 654 | for (seq, scope, id, revision, action, time, trace, context, units, unit, reason_code) in |
| 655 | records.into_iter().take(limit) |
| 656 | { |
| 657 | cursor = seq; |
| 658 | let mut attributes = BTreeMap::<String, Value>::new(); |
| 659 | for (k, v) in [ |
| 660 | ("memory.schema", json!(1)), |
| 661 | ("memory.id", json!(id)), |
| 662 | ("memory.scope", json!(policy::sha256(scope.as_bytes()))), |
| 663 | ("memory.revision", json!(revision)), |
| 664 | ("memory.action", json!(action)), |
| 665 | ("memory.producer", json!(producer)), |
| 666 | ("memory.epoch", json!(epoch)), |
| 667 | ("memory.sequence", json!(seq)), |
| 668 | ("memory.receipt_delay_ms", json!(0)), |
| 669 | ("memory.origin", json!("engine")), |
| 670 | ("memory.sequence_domain", json!("filtered_store")), |
| 671 | ] { |
| 672 | attributes.insert(k.into(), v); |
| 673 | } |
| 674 | if let Some(flags) = reason_code |
| 675 | .as_deref() |
| 676 | .and_then(|s| s.strip_prefix("preferences:")) |
| 677 | && matches!(flags, "00" | "01" | "10" | "11") |
| 678 | { |
| 679 | attributes.insert("memory.pinned".into(), json!(flags.starts_with('1'))); |
| 680 | attributes.insert("memory.suppressed".into(), json!(flags.ends_with('1'))); |
| 681 | } |
| 682 | if let Some(c) = context { |
| 683 | attributes.insert("memory.context_id".into(), json!(c)); |
| 684 | } |
| 685 | if let Some(n) = units { |
| 686 | attributes.insert("memory.budget_units".into(), json!(n)); |
| 687 | } |
| 688 | if let Some(u) = unit { |
| 689 | attributes.insert("memory.budget_unit".into(), json!(u)); |
| 690 | } |
| 691 | events.push(json!({"schemaVersion":1,"id":format!("memory-{producer}-{seq}"), |
| 692 | "traceId":trace.unwrap_or_else(||format!("memory-{producer}")),"startTime":time.saturating_mul(1000),"endTime":time.saturating_mul(1000), |
| 693 | "agentId":"memory-engine","category":"memory","subtype":format!("memory.{action}"),"name":format!("memory.{action}"),"status":"success","attributes":attributes})); |
| 694 | } |
| 695 | Ok(EventPage { |
| 696 | schema: "codewhale.memory.events/v1".into(), |
| 697 | producer, |
| 698 | epoch, |
| 699 | events, |
| 700 | next_after: cursor, |
| 701 | has_more: more, |
| 702 | sequence_domain: "filtered_store".into(), |
| 703 | }) |
| 704 | } |
| 705 | } |
| 706 | |
| 707 | impl Store { |
| 708 | pub fn numeric_id(&self, access: &Access, id: &str) -> Result<i64> { |
| 709 | self.get(access, id)?; |
| 710 | Ok(self.conn.query_row( |
| 711 | "SELECT id FROM memory_numeric_aliases WHERE memory_id=?1", |
| 712 | [id], |
| 713 | |r| r.get(0), |
| 714 | )?) |
| 715 | } |
| 716 | pub fn get_numeric(&self, access: &Access, id: i64) -> Result<Memory> { |
| 717 | access.require(Capability::Read)?; |
| 718 | let memory: Option<String> = self |
| 719 | .conn |
| 720 | .query_row( |
| 721 | "SELECT memory_id FROM memory_numeric_aliases WHERE id=?1", |
| 722 | [id], |
| 723 | |r| r.get(0), |
| 724 | ) |
| 725 | .optional()? |
| 726 | .flatten(); |
| 727 | self.get(access, &memory.ok_or(Error::NotFound)?) |
| 728 | } |
| 729 | pub fn replacement_of(&self, access: &Access, id: &str) -> Result<Option<Memory>> { |
| 730 | self.get(access, id)?; |
| 731 | let replacement: Option<String> = self |
| 732 | .conn |
| 733 | .query_row( |
| 734 | "SELECT new_id FROM replacements WHERE old_id=?1", |
| 735 | [id], |
| 736 | |r| r.get(0), |
| 737 | ) |
| 738 | .optional()?; |
| 739 | replacement.map(|id| self.get(access, &id)).transpose() |
| 740 | } |
| 741 | /// Explicit local-maintenance inventory, not a model-facing cross-repo read. |
| 742 | /// Requires the user scope plus Maintenance and returns no source text. |
| 743 | pub fn local_scope_inventory(&self, access: &Access) -> Result<Vec<Scope>> { |
| 744 | access.require(Capability::Maintenance)?; |
| 745 | let owner = access |
| 746 | .scopes() |
| 747 | .find(|s| s.workspace.is_none() && s.session.is_none()) |
| 748 | .ok_or(Error::Denied)?; |
| 749 | let mut stmt=self.conn.prepare("SELECT DISTINCT scope FROM memories WHERE json_extract(scope,'$.tenant')=?1 AND json_extract(scope,'$.user')=?2 ORDER BY scope LIMIT 10000")?; |
| 750 | let rows = stmt |
| 751 | .query_map(params![owner.tenant, owner.user], |r| r.get::<_, String>(0))? |
| 752 | .collect::<rusqlite::Result<Vec<_>>>()?; |
| 753 | rows.into_iter() |
| 754 | .map(|s| serde_json::from_str(&s).map_err(Into::into)) |
| 755 | .collect() |
| 756 | } |
| 757 | } |
| 758 |