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dakera_client/
memory.rs

1//! Memory-oriented client methods for Dakera AI Agent Memory Platform
2//!
3//! Provides high-level methods for storing, recalling, and managing
4//! agent memories and sessions through the Dakera API.
5
6use serde::{Deserialize, Serialize};
7
8use crate::error::Result;
9use crate::types::{
10    AgentFeedbackSummary, EdgeType, FeedbackHealthResponse, FeedbackHistoryResponse,
11    FeedbackResponse, FeedbackSignal, GraphExport, GraphLinkRequest, GraphLinkResponse,
12    GraphOptions, GraphPath, MemoryFeedbackBody, MemoryGraph, MemoryImportancePatch,
13};
14use crate::DakeraClient;
15
16// ============================================================================
17// Memory Types (client-side)
18// ============================================================================
19
20/// Memory type classification
21#[derive(Debug, Clone, Serialize, Deserialize, Default)]
22#[serde(rename_all = "lowercase")]
23pub enum MemoryType {
24    #[default]
25    Episodic,
26    Semantic,
27    Procedural,
28    Working,
29}
30
31/// Store a memory request
32#[derive(Debug, Clone, Serialize, Deserialize)]
33pub struct StoreMemoryRequest {
34    pub agent_id: String,
35    pub content: String,
36    #[serde(default)]
37    pub memory_type: MemoryType,
38    #[serde(default = "default_importance")]
39    pub importance: f32,
40    #[serde(default)]
41    pub tags: Vec<String>,
42    #[serde(skip_serializing_if = "Option::is_none")]
43    pub session_id: Option<String>,
44    #[serde(skip_serializing_if = "Option::is_none")]
45    pub metadata: Option<serde_json::Value>,
46    /// Optional TTL in seconds. The memory is hard-deleted after this many
47    /// seconds from creation.
48    #[serde(skip_serializing_if = "Option::is_none")]
49    pub ttl_seconds: Option<u64>,
50    /// Optional explicit expiry as a Unix timestamp (seconds). Takes precedence
51    /// over `ttl_seconds` when both are set. The memory is hard-deleted by the
52    /// decay engine on expiry (DECAY-3).
53    #[serde(skip_serializing_if = "Option::is_none")]
54    pub expires_at: Option<u64>,
55}
56
57fn default_importance() -> f32 {
58    0.5
59}
60
61impl StoreMemoryRequest {
62    /// Create a new store memory request
63    pub fn new(agent_id: impl Into<String>, content: impl Into<String>) -> Self {
64        Self {
65            agent_id: agent_id.into(),
66            content: content.into(),
67            memory_type: MemoryType::default(),
68            importance: 0.5,
69            tags: Vec::new(),
70            session_id: None,
71            metadata: None,
72            ttl_seconds: None,
73            expires_at: None,
74        }
75    }
76
77    /// Set memory type
78    pub fn with_type(mut self, memory_type: MemoryType) -> Self {
79        self.memory_type = memory_type;
80        self
81    }
82
83    /// Set importance score
84    pub fn with_importance(mut self, importance: f32) -> Self {
85        self.importance = importance.clamp(0.0, 1.0);
86        self
87    }
88
89    /// Set tags
90    pub fn with_tags(mut self, tags: Vec<String>) -> Self {
91        self.tags = tags;
92        self
93    }
94
95    /// Set session ID
96    pub fn with_session(mut self, session_id: impl Into<String>) -> Self {
97        self.session_id = Some(session_id.into());
98        self
99    }
100
101    /// Set metadata
102    pub fn with_metadata(mut self, metadata: serde_json::Value) -> Self {
103        self.metadata = Some(metadata);
104        self
105    }
106
107    /// Set TTL in seconds. The memory is hard-deleted after this many seconds
108    /// from creation.
109    pub fn with_ttl(mut self, ttl_seconds: u64) -> Self {
110        self.ttl_seconds = Some(ttl_seconds);
111        self
112    }
113
114    /// Set an explicit expiry Unix timestamp (seconds). Takes precedence over
115    /// `ttl_seconds` when both are set (DECAY-3).
116    pub fn with_expires_at(mut self, expires_at: u64) -> Self {
117        self.expires_at = Some(expires_at);
118        self
119    }
120}
121
122/// Stored memory response from `POST /v1/memory/store`.
123///
124/// The server wraps the memory in a nested `memory` object:
125/// `{"memory": {"id": "...", "agent_id": "...", ...}, "embedding_time_ms": N}`.
126/// The `memory_id` and `agent_id` fields are convenience accessors mapped from
127/// `memory.id` and `memory.agent_id` respectively.
128#[derive(Debug, Clone, Serialize)]
129pub struct StoreMemoryResponse {
130    /// Memory ID (mapped from `memory.id`)
131    pub memory_id: String,
132    /// Agent ID (mapped from `memory.agent_id`)
133    pub agent_id: String,
134    /// Namespace (mapped from `memory.namespace`, defaults to `"default"`)
135    pub namespace: String,
136    /// Embedding latency in milliseconds
137    pub embedding_time_ms: Option<u64>,
138}
139
140impl<'de> serde::Deserialize<'de> for StoreMemoryResponse {
141    fn deserialize<D: serde::Deserializer<'de>>(
142        deserializer: D,
143    ) -> std::result::Result<Self, D::Error> {
144        use serde::de::Error;
145        let val = serde_json::Value::deserialize(deserializer)?;
146
147        // Server response: {"memory": {"id":"...","agent_id":"...",...}, "embedding_time_ms": N}
148        if let Some(memory) = val.get("memory") {
149            let memory_id = memory
150                .get("id")
151                .and_then(|v| v.as_str())
152                .ok_or_else(|| D::Error::missing_field("memory.id"))?
153                .to_string();
154            let agent_id = memory
155                .get("agent_id")
156                .and_then(|v| v.as_str())
157                .unwrap_or("")
158                .to_string();
159            let namespace = memory
160                .get("namespace")
161                .and_then(|v| v.as_str())
162                .unwrap_or("default")
163                .to_string();
164            let embedding_time_ms = val.get("embedding_time_ms").and_then(|v| v.as_u64());
165            return Ok(Self {
166                memory_id,
167                agent_id,
168                namespace,
169                embedding_time_ms,
170            });
171        }
172
173        // Legacy / mock format: {"memory_id":"...","agent_id":"...","namespace":"..."}
174        let memory_id = val
175            .get("memory_id")
176            .and_then(|v| v.as_str())
177            .ok_or_else(|| D::Error::missing_field("memory_id"))?
178            .to_string();
179        let agent_id = val
180            .get("agent_id")
181            .and_then(|v| v.as_str())
182            .unwrap_or("")
183            .to_string();
184        let namespace = val
185            .get("namespace")
186            .and_then(|v| v.as_str())
187            .unwrap_or("default")
188            .to_string();
189        Ok(Self {
190            memory_id,
191            agent_id,
192            namespace,
193            embedding_time_ms: None,
194        })
195    }
196}
197
198/// Fusion strategy for hybrid recall (CE-14).
199///
200/// Controls how vector and BM25 scores are combined when `routing = Hybrid`.
201/// `MinMax` is the server default since v0.11.2 (CEO architecture decision, DAK-1948).
202/// `RecallRequest` sends `None` by default, so the server default applies automatically.
203#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq, Eq)]
204#[serde(rename_all = "snake_case")]
205pub enum FusionStrategy {
206    /// Reciprocal Rank Fusion (Cormack et al., SIGIR 2009).
207    /// Formula: score(d) = Σ 1 / (k + rank(d)), k = 60.
208    /// This variant is the Rust `Default` for ergonomic use; pass `None` in
209    /// `RecallRequest` to let the server apply its own default (MinMax since v0.11.2).
210    #[default]
211    Rrf,
212    /// Weighted min-max normalization — server default since v0.11.2.
213    #[serde(rename = "minmax")]
214    MinMax,
215}
216
217/// Retrieval routing mode for recall and search (CE-10).
218///
219/// Controls which retrieval index the server uses. `Auto` (default) lets the
220/// server pick the best strategy based on the query.
221#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
222#[serde(rename_all = "snake_case")]
223pub enum RoutingMode {
224    /// Server picks the best strategy (default).
225    Auto,
226    /// Force ANN vector search (HNSW).
227    Vector,
228    /// Force BM25 full-text search.
229    Bm25,
230    /// Fuse ANN and BM25 scores (RRF).
231    Hybrid,
232}
233
234/// Recall memories request
235#[derive(Debug, Clone, Serialize, Deserialize)]
236pub struct RecallRequest {
237    pub agent_id: String,
238    pub query: String,
239    #[serde(default = "default_top_k")]
240    pub top_k: usize,
241    #[serde(skip_serializing_if = "Option::is_none")]
242    pub memory_type: Option<MemoryType>,
243    #[serde(default)]
244    pub min_importance: f32,
245    #[serde(skip_serializing_if = "Option::is_none")]
246    pub session_id: Option<String>,
247    #[serde(default)]
248    pub tags: Vec<String>,
249    /// COG-2: traverse KG depth-1 from recalled memories and include
250    /// associatively linked memories in the response (default: false)
251    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
252    pub include_associated: bool,
253    /// COG-2: max associated memories to return (default: 10, max: 10)
254    #[serde(skip_serializing_if = "Option::is_none")]
255    pub associated_memories_cap: Option<u32>,
256    /// KG-3: KG traversal depth 1–3 (default: 1); requires include_associated
257    #[serde(skip_serializing_if = "Option::is_none")]
258    pub associated_memories_depth: Option<u8>,
259    /// KG-3: minimum edge weight for KG traversal (default: 0.0)
260    #[serde(skip_serializing_if = "Option::is_none")]
261    pub associated_memories_min_weight: Option<f32>,
262    /// CE-7: only recall memories created at or after this ISO-8601 timestamp
263    #[serde(skip_serializing_if = "Option::is_none")]
264    pub since: Option<String>,
265    /// CE-7: only recall memories created at or before this ISO-8601 timestamp
266    #[serde(skip_serializing_if = "Option::is_none")]
267    pub until: Option<String>,
268    /// CE-10: retrieval routing mode. `None` uses the server default (`auto`).
269    #[serde(skip_serializing_if = "Option::is_none")]
270    pub routing: Option<RoutingMode>,
271    /// CE-13: cross-encoder reranking. `None` uses server default (`true` for recall,
272    /// `false` for search). Set to `Some(false)` to disable on latency-sensitive paths.
273    #[serde(skip_serializing_if = "Option::is_none")]
274    pub rerank: Option<bool>,
275    /// CE-14: fusion strategy when `routing = Hybrid`. `None` uses server default (`Rrf`).
276    #[serde(skip_serializing_if = "Option::is_none")]
277    pub fusion: Option<FusionStrategy>,
278    /// CE-17: explicit vector/BM25 weight for Hybrid routing (0.0–1.0).
279    /// When set, overrides the adaptive heuristic from `QueryClassifier`.
280    /// Omit for adaptive defaults (recommended for most callers).
281    /// Only effective when `routing = RoutingMode::Hybrid`.
282    #[serde(skip_serializing_if = "Option::is_none")]
283    pub vector_weight: Option<f32>,
284    /// CE-23: pseudo-relevance feedback (PRF) passes for BM25 routing (1–3, default: 1).
285    /// Pass `Some(2)` or `Some(3)` for multi-hop or temporal queries where a second
286    /// BM25 pass over extracted entities improves recall.
287    /// Only effective when `routing = RoutingMode::Bm25`.
288    #[serde(skip_serializing_if = "Option::is_none")]
289    pub iterations: Option<u8>,
290    /// v0.11.0: fetch session-adjacent memories within ±5 min of each top result.
291    /// `None` uses server default (`true`). Set to `Some(false)` to disable for
292    /// latency-sensitive paths.
293    #[serde(skip_serializing_if = "Option::is_none")]
294    pub neighborhood: Option<bool>,
295}
296
297fn default_top_k() -> usize {
298    5
299}
300
301impl RecallRequest {
302    /// Create a new recall request
303    pub fn new(agent_id: impl Into<String>, query: impl Into<String>) -> Self {
304        Self {
305            agent_id: agent_id.into(),
306            query: query.into(),
307            top_k: 5,
308            memory_type: None,
309            min_importance: 0.0,
310            session_id: None,
311            tags: Vec::new(),
312            include_associated: false,
313            associated_memories_cap: None,
314            associated_memories_depth: None,
315            associated_memories_min_weight: None,
316            since: None,
317            until: None,
318            routing: None,
319            rerank: None,
320            fusion: None,
321            vector_weight: None,
322            iterations: None,
323            neighborhood: None,
324        }
325    }
326
327    /// Set number of results
328    pub fn with_top_k(mut self, top_k: usize) -> Self {
329        self.top_k = top_k;
330        self
331    }
332
333    /// Filter by memory type
334    pub fn with_type(mut self, memory_type: MemoryType) -> Self {
335        self.memory_type = Some(memory_type);
336        self
337    }
338
339    /// Set minimum importance threshold
340    pub fn with_min_importance(mut self, min: f32) -> Self {
341        self.min_importance = min;
342        self
343    }
344
345    /// Filter by session
346    pub fn with_session(mut self, session_id: impl Into<String>) -> Self {
347        self.session_id = Some(session_id.into());
348        self
349    }
350
351    /// Filter by tags
352    pub fn with_tags(mut self, tags: Vec<String>) -> Self {
353        self.tags = tags;
354        self
355    }
356
357    /// COG-2: include KG depth-1 associated memories in the response
358    pub fn with_associated(mut self) -> Self {
359        self.include_associated = true;
360        self
361    }
362
363    /// COG-2: set max associated memories cap (default: 10, max: 10)
364    pub fn with_associated_cap(mut self, cap: u32) -> Self {
365        self.include_associated = true;
366        self.associated_memories_cap = Some(cap);
367        self
368    }
369
370    /// CE-7: only recall memories created at or after this ISO-8601 timestamp
371    pub fn with_since(mut self, since: impl Into<String>) -> Self {
372        self.since = Some(since.into());
373        self
374    }
375
376    /// CE-7: only recall memories created at or before this ISO-8601 timestamp
377    pub fn with_until(mut self, until: impl Into<String>) -> Self {
378        self.until = Some(until.into());
379        self
380    }
381
382    /// CE-10: set retrieval routing mode
383    pub fn with_routing(mut self, routing: RoutingMode) -> Self {
384        self.routing = Some(routing);
385        self
386    }
387
388    /// CE-13: enable or disable cross-encoder reranking (server default: true for recall)
389    pub fn with_rerank(mut self, rerank: bool) -> Self {
390        self.rerank = Some(rerank);
391        self
392    }
393
394    /// KG-3: set KG traversal depth (1–3, default: 1); implies include_associated
395    pub fn with_associated_depth(mut self, depth: u8) -> Self {
396        self.include_associated = true;
397        self.associated_memories_depth = Some(depth);
398        self
399    }
400
401    /// KG-3: set minimum edge weight for KG traversal (default: 0.0)
402    pub fn with_associated_min_weight(mut self, weight: f32) -> Self {
403        self.associated_memories_min_weight = Some(weight);
404        self
405    }
406
407    /// CE-14: set fusion strategy for hybrid recall (server default: `Rrf`)
408    pub fn with_fusion(mut self, fusion: FusionStrategy) -> Self {
409        self.fusion = Some(fusion);
410        self
411    }
412
413    /// CE-17: set explicit vector/BM25 weight for Hybrid routing (0.0–1.0).
414    /// Overrides the adaptive heuristic from `QueryClassifier`.
415    /// Omit for adaptive defaults (recommended for most callers).
416    pub fn with_vector_weight(mut self, weight: f32) -> Self {
417        self.vector_weight = Some(weight);
418        self
419    }
420
421    /// CE-23: set PRF iteration count for BM25 routing (1–3, default: 1).
422    /// Pass `2` or `3` for multi-hop or temporal queries where a second BM25
423    /// pass over extracted entities improves recall.
424    /// Only effective when `routing = RoutingMode::Bm25`.
425    pub fn with_iterations(mut self, iterations: u8) -> Self {
426        self.iterations = Some(iterations);
427        self
428    }
429
430    /// v0.11.0: enable or disable session-adjacent neighborhood enrichment
431    /// (server default: `true`). Set to `false` for latency-sensitive paths.
432    pub fn with_neighborhood(mut self, neighborhood: bool) -> Self {
433        self.neighborhood = Some(neighborhood);
434        self
435    }
436}
437
438/// A recalled memory
439#[derive(Debug, Clone, Serialize)]
440pub struct RecalledMemory {
441    pub id: String,
442    pub content: String,
443    pub memory_type: MemoryType,
444    pub importance: f32,
445    pub score: f32,
446    #[serde(default)]
447    pub tags: Vec<String>,
448    #[serde(skip_serializing_if = "Option::is_none")]
449    pub session_id: Option<String>,
450    #[serde(skip_serializing_if = "Option::is_none")]
451    pub metadata: Option<serde_json::Value>,
452    pub created_at: u64,
453    pub last_accessed_at: u64,
454    pub access_count: u32,
455    /// KG-3: hop depth at which this memory was found (only set on associated memories)
456    #[serde(skip_serializing_if = "Option::is_none")]
457    pub depth: Option<u8>,
458}
459
460impl<'de> serde::Deserialize<'de> for RecalledMemory {
461    fn deserialize<D: serde::Deserializer<'de>>(
462        deserializer: D,
463    ) -> std::result::Result<Self, D::Error> {
464        use serde::de::Error as _;
465        let val = serde_json::Value::deserialize(deserializer)?;
466
467        // Server wraps recall results as {memory:{...}, score, weighted_score, smart_score}.
468        // Fall back to flat format for direct memory-get responses.
469        let score = val
470            .get("score")
471            .and_then(|v| v.as_f64())
472            .or_else(|| val.get("weighted_score").and_then(|v| v.as_f64()))
473            .unwrap_or(0.0) as f32;
474
475        let mem = val.get("memory").unwrap_or(&val);
476
477        let id = mem
478            .get("id")
479            .and_then(|v| v.as_str())
480            .ok_or_else(|| D::Error::missing_field("id"))?
481            .to_string();
482        let content = mem
483            .get("content")
484            .and_then(|v| v.as_str())
485            .ok_or_else(|| D::Error::missing_field("content"))?
486            .to_string();
487        let memory_type: MemoryType = mem
488            .get("memory_type")
489            .and_then(|v| serde_json::from_value(v.clone()).ok())
490            .unwrap_or(MemoryType::Episodic);
491        let importance = mem
492            .get("importance")
493            .and_then(|v| v.as_f64())
494            .unwrap_or(0.5) as f32;
495        let tags: Vec<String> = mem
496            .get("tags")
497            .and_then(|v| serde_json::from_value(v.clone()).ok())
498            .unwrap_or_default();
499        let session_id = mem
500            .get("session_id")
501            .and_then(|v| v.as_str())
502            .map(String::from);
503        let metadata = mem.get("metadata").cloned().filter(|v| !v.is_null());
504        let created_at = mem.get("created_at").and_then(|v| v.as_u64()).unwrap_or(0);
505        let last_accessed_at = mem
506            .get("last_accessed_at")
507            .and_then(|v| v.as_u64())
508            .unwrap_or(0);
509        let access_count = mem
510            .get("access_count")
511            .and_then(|v| v.as_u64())
512            .unwrap_or(0) as u32;
513        let depth = mem.get("depth").and_then(|v| v.as_u64()).map(|v| v as u8);
514
515        Ok(Self {
516            id,
517            content,
518            memory_type,
519            importance,
520            score,
521            tags,
522            session_id,
523            metadata,
524            created_at,
525            last_accessed_at,
526            access_count,
527            depth,
528        })
529    }
530}
531
532/// Recall response
533#[derive(Debug, Clone, Serialize, Deserialize)]
534pub struct RecallResponse {
535    pub memories: Vec<RecalledMemory>,
536    #[serde(default)]
537    pub total_found: usize,
538    /// COG-2 / KG-3: KG associated memories at configurable depth (only present when include_associated was true)
539    #[serde(skip_serializing_if = "Option::is_none")]
540    pub associated_memories: Option<Vec<RecalledMemory>>,
541}
542
543/// Forget (delete) memories request
544#[derive(Debug, Clone, Serialize, Deserialize)]
545pub struct ForgetRequest {
546    pub agent_id: String,
547    #[serde(default)]
548    pub memory_ids: Vec<String>,
549    #[serde(default)]
550    pub tags: Vec<String>,
551    #[serde(skip_serializing_if = "Option::is_none")]
552    pub session_id: Option<String>,
553    #[serde(skip_serializing_if = "Option::is_none")]
554    pub before_timestamp: Option<u64>,
555}
556
557impl ForgetRequest {
558    /// Forget specific memories by ID
559    pub fn by_ids(agent_id: impl Into<String>, ids: Vec<String>) -> Self {
560        Self {
561            agent_id: agent_id.into(),
562            memory_ids: ids,
563            tags: Vec::new(),
564            session_id: None,
565            before_timestamp: None,
566        }
567    }
568
569    /// Forget memories with specific tags
570    pub fn by_tags(agent_id: impl Into<String>, tags: Vec<String>) -> Self {
571        Self {
572            agent_id: agent_id.into(),
573            memory_ids: Vec::new(),
574            tags,
575            session_id: None,
576            before_timestamp: None,
577        }
578    }
579
580    /// Forget all memories in a session
581    pub fn by_session(agent_id: impl Into<String>, session_id: impl Into<String>) -> Self {
582        Self {
583            agent_id: agent_id.into(),
584            memory_ids: Vec::new(),
585            tags: Vec::new(),
586            session_id: Some(session_id.into()),
587            before_timestamp: None,
588        }
589    }
590}
591
592/// Forget response
593#[derive(Debug, Clone, Serialize, Deserialize)]
594pub struct ForgetResponse {
595    pub deleted_count: u64,
596}
597
598/// Session start request
599#[derive(Debug, Clone, Serialize, Deserialize)]
600pub struct SessionStartRequest {
601    pub agent_id: String,
602    #[serde(skip_serializing_if = "Option::is_none")]
603    pub metadata: Option<serde_json::Value>,
604}
605
606/// Session information
607#[derive(Debug, Clone, Serialize, Deserialize)]
608pub struct Session {
609    pub id: String,
610    pub agent_id: String,
611    pub started_at: u64,
612    #[serde(skip_serializing_if = "Option::is_none")]
613    pub ended_at: Option<u64>,
614    #[serde(skip_serializing_if = "Option::is_none")]
615    pub summary: Option<String>,
616    #[serde(skip_serializing_if = "Option::is_none")]
617    pub metadata: Option<serde_json::Value>,
618    /// Cached count of memories in this session
619    #[serde(default)]
620    pub memory_count: usize,
621}
622
623/// Session end request
624#[derive(Debug, Clone, Serialize, Deserialize)]
625pub struct SessionEndRequest {
626    #[serde(skip_serializing_if = "Option::is_none")]
627    pub summary: Option<String>,
628}
629
630/// Response from `POST /v1/sessions/start`
631#[derive(Debug, Clone, Serialize, Deserialize)]
632pub struct SessionStartResponse {
633    pub session: Session,
634}
635
636/// Response from `POST /v1/sessions/{id}/end`
637#[derive(Debug, Clone, Serialize, Deserialize)]
638pub struct SessionEndResponse {
639    pub session: Session,
640    pub memory_count: usize,
641}
642
643/// Response from `GET /v1/sessions`
644#[derive(Debug, Clone, Deserialize)]
645pub struct ListSessionsResponse {
646    pub sessions: Vec<Session>,
647    #[allow(dead_code)]
648    pub total: usize,
649}
650
651/// Request to update a memory
652#[derive(Debug, Clone, Serialize, Deserialize)]
653pub struct UpdateMemoryRequest {
654    #[serde(skip_serializing_if = "Option::is_none")]
655    pub content: Option<String>,
656    #[serde(skip_serializing_if = "Option::is_none")]
657    pub metadata: Option<serde_json::Value>,
658    #[serde(skip_serializing_if = "Option::is_none")]
659    pub memory_type: Option<MemoryType>,
660}
661
662/// Request to update memory importance
663#[derive(Debug, Clone, Serialize, Deserialize)]
664pub struct UpdateImportanceRequest {
665    pub memory_ids: Vec<String>,
666    pub importance: f32,
667}
668
669/// DBSCAN algorithm config for adaptive consolidation (CE-6).
670#[derive(Debug, Clone, Serialize, Deserialize, Default)]
671pub struct ConsolidationConfig {
672    /// Clustering algorithm: `"dbscan"` (default) or `"greedy"`.
673    #[serde(skip_serializing_if = "Option::is_none")]
674    pub algorithm: Option<String>,
675    /// Minimum cluster samples for DBSCAN.
676    #[serde(skip_serializing_if = "Option::is_none")]
677    pub min_samples: Option<u32>,
678    /// Epsilon distance parameter for DBSCAN.
679    #[serde(skip_serializing_if = "Option::is_none")]
680    pub eps: Option<f32>,
681}
682
683/// One step in the consolidation execution log (CE-6).
684#[derive(Debug, Clone, Serialize, Deserialize)]
685pub struct ConsolidationLogEntry {
686    pub step: String,
687    pub memories_before: usize,
688    pub memories_after: usize,
689    pub duration_ms: f64,
690}
691
692/// Request to consolidate memories
693#[derive(Debug, Clone, Serialize, Deserialize, Default)]
694pub struct ConsolidateRequest {
695    #[serde(skip_serializing_if = "Option::is_none")]
696    pub memory_type: Option<String>,
697    #[serde(skip_serializing_if = "Option::is_none")]
698    pub threshold: Option<f32>,
699    #[serde(default)]
700    pub dry_run: bool,
701    /// Optional DBSCAN algorithm configuration (CE-6).
702    #[serde(skip_serializing_if = "Option::is_none")]
703    pub config: Option<ConsolidationConfig>,
704}
705
706/// Response from consolidation (`POST /v1/memory/consolidate`).
707///
708/// The server returns `{"memories_removed": N, "source_memory_ids": [...], "consolidated_memory": {...}}`.
709/// `consolidated_count` is mapped from `memories_removed` for backward compat.
710#[derive(Debug, Clone, Serialize)]
711pub struct ConsolidateResponse {
712    /// Number of source memories removed (= `memories_removed` from server)
713    pub consolidated_count: usize,
714    /// Alias for consolidated_count
715    pub removed_count: usize,
716    /// IDs of source memories that were removed
717    #[serde(default)]
718    pub new_memories: Vec<String>,
719    /// Step-by-step consolidation log (CE-6, optional).
720    #[serde(default, skip_serializing_if = "Vec::is_empty")]
721    pub log: Vec<ConsolidationLogEntry>,
722}
723
724impl<'de> serde::Deserialize<'de> for ConsolidateResponse {
725    fn deserialize<D: serde::Deserializer<'de>>(
726        deserializer: D,
727    ) -> std::result::Result<Self, D::Error> {
728        let val = serde_json::Value::deserialize(deserializer)?;
729        // Server format: {"consolidated_memory":{...}, "source_memory_ids":[...], "memories_removed": N}
730        let removed = val
731            .get("memories_removed")
732            .and_then(|v| v.as_u64())
733            .or_else(|| val.get("removed_count").and_then(|v| v.as_u64()))
734            .or_else(|| val.get("consolidated_count").and_then(|v| v.as_u64()))
735            .unwrap_or(0) as usize;
736        let source_ids: Vec<String> = val
737            .get("source_memory_ids")
738            .and_then(|v| v.as_array())
739            .map(|arr| {
740                arr.iter()
741                    .filter_map(|v| v.as_str().map(String::from))
742                    .collect()
743            })
744            .unwrap_or_default();
745        Ok(Self {
746            consolidated_count: removed,
747            removed_count: removed,
748            new_memories: source_ids,
749            log: vec![],
750        })
751    }
752}
753
754// ============================================================================
755// DX-1: Memory Import / Export
756// ============================================================================
757
758/// Response from `POST /v1/import` (DX-1).
759#[derive(Debug, Clone, Serialize, Deserialize)]
760pub struct MemoryImportResponse {
761    pub imported_count: usize,
762    pub skipped_count: usize,
763    #[serde(default)]
764    pub errors: Vec<String>,
765}
766
767/// Response from `GET /v1/export` (DX-1).
768#[derive(Debug, Clone, Serialize, Deserialize)]
769pub struct MemoryExportResponse {
770    pub data: Vec<serde_json::Value>,
771    pub format: String,
772    pub count: usize,
773}
774
775// ============================================================================
776// OBS-1: Business-Event Audit Log
777// ============================================================================
778
779/// A single business-event entry from the audit log (OBS-1).
780#[derive(Debug, Clone, Serialize, Deserialize)]
781pub struct AuditEvent {
782    pub id: String,
783    pub event_type: String,
784    #[serde(skip_serializing_if = "Option::is_none")]
785    pub agent_id: Option<String>,
786    #[serde(skip_serializing_if = "Option::is_none")]
787    pub namespace: Option<String>,
788    pub timestamp: u64,
789    #[serde(default)]
790    pub details: serde_json::Value,
791}
792
793/// Response from `GET /v1/audit` (OBS-1).
794#[derive(Debug, Clone, Serialize, Deserialize)]
795pub struct AuditListResponse {
796    pub events: Vec<AuditEvent>,
797    pub total: usize,
798    #[serde(skip_serializing_if = "Option::is_none")]
799    pub cursor: Option<String>,
800}
801
802/// Response from `POST /v1/audit/export` (OBS-1).
803#[derive(Debug, Clone, Serialize, Deserialize)]
804pub struct AuditExportResponse {
805    pub data: String,
806    pub format: String,
807    pub count: usize,
808}
809
810/// Query parameters for the audit log (OBS-1).
811#[derive(Debug, Clone, Serialize, Deserialize, Default)]
812pub struct AuditQuery {
813    #[serde(skip_serializing_if = "Option::is_none")]
814    pub agent_id: Option<String>,
815    #[serde(skip_serializing_if = "Option::is_none")]
816    pub event_type: Option<String>,
817    #[serde(skip_serializing_if = "Option::is_none")]
818    pub from: Option<u64>,
819    #[serde(skip_serializing_if = "Option::is_none")]
820    pub to: Option<u64>,
821    #[serde(skip_serializing_if = "Option::is_none")]
822    pub limit: Option<u32>,
823    #[serde(skip_serializing_if = "Option::is_none")]
824    pub cursor: Option<String>,
825}
826
827// ============================================================================
828// EXT-1: External Extraction Providers
829// ============================================================================
830
831/// Result from `POST /v1/extract` (EXT-1).
832#[derive(Debug, Clone, Serialize, Deserialize)]
833pub struct ExtractionResult {
834    pub entities: Vec<serde_json::Value>,
835    pub provider: String,
836    #[serde(skip_serializing_if = "Option::is_none")]
837    pub model: Option<String>,
838    pub duration_ms: f64,
839}
840
841/// Metadata for an available extraction provider (EXT-1).
842#[derive(Debug, Clone, Serialize, Deserialize)]
843pub struct ExtractionProviderInfo {
844    pub name: String,
845    pub available: bool,
846    #[serde(default)]
847    pub models: Vec<String>,
848}
849
850/// Response from `GET /v1/extract/providers` (EXT-1).
851#[derive(Debug, Clone, Serialize, Deserialize)]
852#[serde(untagged)]
853pub enum ExtractProvidersResponse {
854    List(Vec<ExtractionProviderInfo>),
855    Object {
856        providers: Vec<ExtractionProviderInfo>,
857    },
858}
859
860// ============================================================================
861// SEC-3: AES-256-GCM Encryption Key Rotation
862// ============================================================================
863
864/// Request body for `POST /v1/admin/encryption/rotate-key` (SEC-3).
865#[derive(Debug, Clone, Serialize, Deserialize)]
866pub struct RotateEncryptionKeyRequest {
867    /// New passphrase or 64-char hex key to rotate to.
868    pub new_key: String,
869    /// If set, rotate only memories in this namespace. Omit to rotate all.
870    #[serde(skip_serializing_if = "Option::is_none")]
871    pub namespace: Option<String>,
872}
873
874/// Response from `POST /v1/admin/encryption/rotate-key` (SEC-3).
875#[derive(Debug, Clone, Serialize, Deserialize)]
876pub struct RotateEncryptionKeyResponse {
877    pub rotated: usize,
878    pub skipped: usize,
879    #[serde(default)]
880    pub namespaces: Vec<String>,
881}
882
883/// Request for memory feedback
884#[derive(Debug, Clone, Serialize, Deserialize)]
885pub struct FeedbackRequest {
886    pub memory_id: String,
887    pub feedback: String,
888    #[serde(skip_serializing_if = "Option::is_none")]
889    pub relevance_score: Option<f32>,
890}
891
892/// Response from legacy feedback endpoint (POST /v1/agents/:id/memories/feedback)
893#[derive(Debug, Clone, Serialize, Deserialize)]
894pub struct LegacyFeedbackResponse {
895    pub status: String,
896    pub updated_importance: Option<f32>,
897}
898
899// ============================================================================
900// CE-2: Batch Recall / Forget Types
901// ============================================================================
902
903/// Filter predicates for batch memory operations (CE-2).
904///
905/// All fields are optional.  For [`BatchForgetRequest`] at least one must be
906/// set (server-side safety guard).
907#[derive(Debug, Clone, Serialize, Deserialize, Default)]
908pub struct BatchMemoryFilter {
909    /// Restrict to memories that carry **all** listed tags.
910    #[serde(skip_serializing_if = "Option::is_none")]
911    pub tags: Option<Vec<String>>,
912    /// Minimum importance (inclusive).
913    #[serde(skip_serializing_if = "Option::is_none")]
914    pub min_importance: Option<f32>,
915    /// Maximum importance (inclusive).
916    #[serde(skip_serializing_if = "Option::is_none")]
917    pub max_importance: Option<f32>,
918    /// Only memories created at or after this Unix timestamp (seconds).
919    #[serde(skip_serializing_if = "Option::is_none")]
920    pub created_after: Option<u64>,
921    /// Only memories created before or at this Unix timestamp (seconds).
922    #[serde(skip_serializing_if = "Option::is_none")]
923    pub created_before: Option<u64>,
924    /// Restrict to a specific memory type.
925    #[serde(skip_serializing_if = "Option::is_none")]
926    pub memory_type: Option<MemoryType>,
927    /// Restrict to memories from a specific session.
928    #[serde(skip_serializing_if = "Option::is_none")]
929    pub session_id: Option<String>,
930}
931
932impl BatchMemoryFilter {
933    /// Convenience: filter by tags.
934    pub fn with_tags(mut self, tags: Vec<String>) -> Self {
935        self.tags = Some(tags);
936        self
937    }
938
939    /// Convenience: filter by minimum importance.
940    pub fn with_min_importance(mut self, min: f32) -> Self {
941        self.min_importance = Some(min);
942        self
943    }
944
945    /// Convenience: filter by maximum importance.
946    pub fn with_max_importance(mut self, max: f32) -> Self {
947        self.max_importance = Some(max);
948        self
949    }
950
951    /// Convenience: filter by session.
952    pub fn with_session(mut self, session_id: impl Into<String>) -> Self {
953        self.session_id = Some(session_id.into());
954        self
955    }
956}
957
958/// Request body for `POST /v1/memories/recall/batch`.
959#[derive(Debug, Clone, Serialize, Deserialize)]
960pub struct BatchRecallRequest {
961    /// Agent whose memory namespace to search.
962    pub agent_id: String,
963    /// Filter predicates to apply.
964    #[serde(default)]
965    pub filter: BatchMemoryFilter,
966    /// Maximum number of results to return (default: 100).
967    #[serde(default = "default_batch_limit")]
968    pub limit: usize,
969}
970
971fn default_batch_limit() -> usize {
972    100
973}
974
975impl BatchRecallRequest {
976    /// Create a new batch recall request for an agent.
977    pub fn new(agent_id: impl Into<String>) -> Self {
978        Self {
979            agent_id: agent_id.into(),
980            filter: BatchMemoryFilter::default(),
981            limit: 100,
982        }
983    }
984
985    /// Set filter predicates.
986    pub fn with_filter(mut self, filter: BatchMemoryFilter) -> Self {
987        self.filter = filter;
988        self
989    }
990
991    /// Set result limit.
992    pub fn with_limit(mut self, limit: usize) -> Self {
993        self.limit = limit;
994        self
995    }
996}
997
998/// Response from `POST /v1/memories/recall/batch`.
999#[derive(Debug, Clone, Serialize, Deserialize)]
1000pub struct BatchRecallResponse {
1001    pub memories: Vec<RecalledMemory>,
1002    /// Total memories in the agent namespace.
1003    pub total: usize,
1004    /// Number of memories that passed the filter.
1005    pub filtered: usize,
1006}
1007
1008/// Request body for `DELETE /v1/memories/forget/batch`.
1009#[derive(Debug, Clone, Serialize, Deserialize)]
1010pub struct BatchForgetRequest {
1011    /// Agent whose memory namespace to purge from.
1012    pub agent_id: String,
1013    /// Filter predicates — **at least one must be set** (server safety guard).
1014    pub filter: BatchMemoryFilter,
1015}
1016
1017impl BatchForgetRequest {
1018    /// Create a new batch forget request with the given filter.
1019    pub fn new(agent_id: impl Into<String>, filter: BatchMemoryFilter) -> Self {
1020        Self {
1021            agent_id: agent_id.into(),
1022            filter,
1023        }
1024    }
1025}
1026
1027/// Response from `DELETE /v1/memories/forget/batch`.
1028#[derive(Debug, Clone, Serialize, Deserialize)]
1029pub struct BatchForgetResponse {
1030    pub deleted_count: usize,
1031}
1032
1033// ============================================================================
1034// Memory Client Methods
1035// ============================================================================
1036
1037impl DakeraClient {
1038    // ========================================================================
1039    // Memory Operations
1040    // ========================================================================
1041
1042    /// Store a memory for an agent
1043    ///
1044    /// # Example
1045    ///
1046    /// ```rust,no_run
1047    /// use dakera_client::{DakeraClient, memory::StoreMemoryRequest};
1048    ///
1049    /// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
1050    /// let client = DakeraClient::new("http://localhost:3000")?;
1051    ///
1052    /// let request = StoreMemoryRequest::new("agent-1", "The user prefers dark mode")
1053    ///     .with_importance(0.8)
1054    ///     .with_tags(vec!["preferences".to_string()]);
1055    ///
1056    /// let response = client.store_memory(request).await?;
1057    /// println!("Stored memory: {}", response.memory_id);
1058    /// # Ok(())
1059    /// # }
1060    /// ```
1061    pub async fn store_memory(&self, request: StoreMemoryRequest) -> Result<StoreMemoryResponse> {
1062        let url = format!("{}/v1/memory/store", self.base_url);
1063        let response = self.client.post(&url).json(&request).send().await?;
1064        self.handle_response(response).await
1065    }
1066
1067    /// Recall memories by semantic query
1068    ///
1069    /// # Example
1070    ///
1071    /// ```rust,no_run
1072    /// use dakera_client::{DakeraClient, memory::RecallRequest};
1073    ///
1074    /// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
1075    /// let client = DakeraClient::new("http://localhost:3000")?;
1076    ///
1077    /// let request = RecallRequest::new("agent-1", "user preferences")
1078    ///     .with_top_k(10);
1079    ///
1080    /// let response = client.recall(request).await?;
1081    /// for memory in response.memories {
1082    ///     println!("{}: {} (score: {})", memory.id, memory.content, memory.score);
1083    /// }
1084    /// # Ok(())
1085    /// # }
1086    /// ```
1087    pub async fn recall(&self, request: RecallRequest) -> Result<RecallResponse> {
1088        let url = format!("{}/v1/memory/recall", self.base_url);
1089        let response = self.client.post(&url).json(&request).send().await?;
1090        self.handle_response(response).await
1091    }
1092
1093    /// Simple recall with just agent_id and query (convenience method)
1094    pub async fn recall_simple(
1095        &self,
1096        agent_id: &str,
1097        query: &str,
1098        top_k: usize,
1099    ) -> Result<RecallResponse> {
1100        self.recall(RecallRequest::new(agent_id, query).with_top_k(top_k))
1101            .await
1102    }
1103
1104    /// Get a specific memory by ID (requires agent_id for namespace lookup)
1105    pub async fn get_memory(&self, agent_id: &str, memory_id: &str) -> Result<RecalledMemory> {
1106        let url = format!(
1107            "{}/v1/memory/get/{}?agent_id={}",
1108            self.base_url, memory_id, agent_id
1109        );
1110        let response = self.client.get(&url).send().await?;
1111        self.handle_response(response).await
1112    }
1113
1114    /// Forget (delete) memories
1115    pub async fn forget(&self, request: ForgetRequest) -> Result<ForgetResponse> {
1116        let url = format!("{}/v1/memory/forget", self.base_url);
1117        let response = self.client.post(&url).json(&request).send().await?;
1118        self.handle_response(response).await
1119    }
1120
1121    /// Search memories with advanced filters
1122    pub async fn search_memories(&self, request: RecallRequest) -> Result<RecallResponse> {
1123        let url = format!("{}/v1/memory/search", self.base_url);
1124        let response = self.client.post(&url).json(&request).send().await?;
1125        self.handle_response(response).await
1126    }
1127
1128    /// Update an existing memory
1129    pub async fn update_memory(
1130        &self,
1131        agent_id: &str,
1132        memory_id: &str,
1133        request: UpdateMemoryRequest,
1134    ) -> Result<StoreMemoryResponse> {
1135        let url = format!(
1136            "{}/v1/agents/{}/memories/{}",
1137            self.base_url, agent_id, memory_id
1138        );
1139        let response = self.client.put(&url).json(&request).send().await?;
1140        self.handle_response(response).await
1141    }
1142
1143    /// Update importance of memories
1144    pub async fn update_importance(
1145        &self,
1146        agent_id: &str,
1147        request: UpdateImportanceRequest,
1148    ) -> Result<serde_json::Value> {
1149        let url = format!("{}/v1/memory/importance", self.base_url);
1150        let mut last_result = serde_json::Value::Null;
1151        for memory_id in &request.memory_ids {
1152            let body = serde_json::json!({
1153                "agent_id": agent_id,
1154                "memory_id": memory_id,
1155                "importance": request.importance,
1156            });
1157            let response = self.client.post(&url).json(&body).send().await?;
1158            last_result = self.handle_response(response).await?;
1159        }
1160        Ok(last_result)
1161    }
1162
1163    /// Consolidate memories for an agent
1164    pub async fn consolidate(
1165        &self,
1166        agent_id: &str,
1167        request: ConsolidateRequest,
1168    ) -> Result<ConsolidateResponse> {
1169        // Server endpoint: POST /v1/memory/consolidate with agent_id in body
1170        let url = format!("{}/v1/memory/consolidate", self.base_url);
1171        let mut body = serde_json::to_value(&request)?;
1172        body["agent_id"] = serde_json::Value::String(agent_id.to_string());
1173        let response = self.client.post(&url).json(&body).send().await?;
1174        self.handle_response(response).await
1175    }
1176
1177    /// Submit feedback on a memory recall
1178    pub async fn memory_feedback(
1179        &self,
1180        agent_id: &str,
1181        request: FeedbackRequest,
1182    ) -> Result<LegacyFeedbackResponse> {
1183        let url = format!("{}/v1/agents/{}/memories/feedback", self.base_url, agent_id);
1184        let response = self.client.post(&url).json(&request).send().await?;
1185        self.handle_response(response).await
1186    }
1187
1188    // ========================================================================
1189    // Memory Feedback Loop — INT-1
1190    // ========================================================================
1191
1192    /// Submit upvote/downvote/flag feedback on a memory (INT-1).
1193    ///
1194    /// # Arguments
1195    /// * `memory_id` – The memory to give feedback on.
1196    /// * `agent_id` – The agent that owns the memory.
1197    /// * `signal` – [`FeedbackSignal`] value: `Upvote`, `Downvote`, or `Flag`.
1198    ///
1199    /// # Example
1200    /// ```no_run
1201    /// # use dakera_client::{DakeraClient, FeedbackSignal};
1202    /// # async fn example(client: &DakeraClient) -> dakera_client::Result<()> {
1203    /// let resp = client.feedback_memory("mem-abc", "agent-1", FeedbackSignal::Upvote).await?;
1204    /// println!("new importance: {}", resp.new_importance);
1205    /// # Ok(()) }
1206    /// ```
1207    pub async fn feedback_memory(
1208        &self,
1209        memory_id: &str,
1210        agent_id: &str,
1211        signal: FeedbackSignal,
1212    ) -> Result<FeedbackResponse> {
1213        let url = format!("{}/v1/memories/{}/feedback", self.base_url, memory_id);
1214        let body = MemoryFeedbackBody {
1215            agent_id: agent_id.to_string(),
1216            signal,
1217        };
1218        let response = self.client.post(&url).json(&body).send().await?;
1219        self.handle_response(response).await
1220    }
1221
1222    /// Get the full feedback history for a memory (INT-1).
1223    pub async fn get_memory_feedback_history(
1224        &self,
1225        memory_id: &str,
1226    ) -> Result<FeedbackHistoryResponse> {
1227        let url = format!("{}/v1/memories/{}/feedback", self.base_url, memory_id);
1228        let response = self.client.get(&url).send().await?;
1229        self.handle_response(response).await
1230    }
1231
1232    /// Get aggregate feedback counts and health score for an agent (INT-1).
1233    pub async fn get_agent_feedback_summary(&self, agent_id: &str) -> Result<AgentFeedbackSummary> {
1234        let url = format!("{}/v1/agents/{}/feedback/summary", self.base_url, agent_id);
1235        let response = self.client.get(&url).send().await?;
1236        self.handle_response(response).await
1237    }
1238
1239    /// Directly override a memory's importance score (INT-1).
1240    ///
1241    /// # Arguments
1242    /// * `memory_id` – The memory to update.
1243    /// * `agent_id` – The agent that owns the memory.
1244    /// * `importance` – New importance value (0.0–1.0).
1245    pub async fn patch_memory_importance(
1246        &self,
1247        memory_id: &str,
1248        agent_id: &str,
1249        importance: f32,
1250    ) -> Result<FeedbackResponse> {
1251        let url = format!("{}/v1/memories/{}/importance", self.base_url, memory_id);
1252        let body = MemoryImportancePatch {
1253            agent_id: agent_id.to_string(),
1254            importance,
1255        };
1256        let response = self.client.patch(&url).json(&body).send().await?;
1257        self.handle_response(response).await
1258    }
1259
1260    /// Get overall feedback health score for an agent (INT-1).
1261    ///
1262    /// The health score is the mean importance of all non-expired memories (0.0–1.0).
1263    /// A higher score indicates a healthier, more relevant memory store.
1264    pub async fn get_feedback_health(&self, agent_id: &str) -> Result<FeedbackHealthResponse> {
1265        let url = format!("{}/v1/feedback/health?agent_id={}", self.base_url, agent_id);
1266        let response = self.client.get(&url).send().await?;
1267        self.handle_response(response).await
1268    }
1269
1270    // ========================================================================
1271    // Memory Knowledge Graph Operations (CE-5 / SDK-9)
1272    // ========================================================================
1273
1274    /// Traverse the knowledge graph from a memory node.
1275    ///
1276    /// Requires CE-5 (Memory Knowledge Graph) on the server.
1277    ///
1278    /// # Arguments
1279    /// * `memory_id` – Root memory ID to start traversal from.
1280    /// * `options` – Traversal options (depth, edge type filters).
1281    ///
1282    /// # Example
1283    /// ```no_run
1284    /// # use dakera_client::{DakeraClient, GraphOptions};
1285    /// # async fn example(client: &DakeraClient) -> dakera_client::Result<()> {
1286    /// let graph = client.memory_graph("mem-abc", GraphOptions::new().depth(2)).await?;
1287    /// println!("{} nodes, {} edges", graph.nodes.len(), graph.edges.len());
1288    /// # Ok(()) }
1289    /// ```
1290    pub async fn memory_graph(
1291        &self,
1292        memory_id: &str,
1293        options: GraphOptions,
1294    ) -> Result<MemoryGraph> {
1295        let mut url = format!("{}/v1/memories/{}/graph", self.base_url, memory_id);
1296        let depth = options.depth.unwrap_or(1);
1297        url.push_str(&format!("?depth={}", depth));
1298        if let Some(types) = &options.types {
1299            let type_strs: Vec<String> = types
1300                .iter()
1301                .map(|t| {
1302                    serde_json::to_value(t)
1303                        .unwrap()
1304                        .as_str()
1305                        .unwrap_or("")
1306                        .to_string()
1307                })
1308                .collect();
1309            if !type_strs.is_empty() {
1310                url.push_str(&format!("&types={}", type_strs.join(",")));
1311            }
1312        }
1313        let response = self.client.get(&url).send().await?;
1314        self.handle_response(response).await
1315    }
1316
1317    /// Find the shortest path between two memories in the knowledge graph.
1318    ///
1319    /// Requires CE-5 (Memory Knowledge Graph) on the server.
1320    ///
1321    /// # Example
1322    /// ```no_run
1323    /// # use dakera_client::DakeraClient;
1324    /// # async fn example(client: &DakeraClient) -> dakera_client::Result<()> {
1325    /// let path = client.memory_path("mem-abc", "mem-xyz").await?;
1326    /// println!("{} hops: {:?}", path.hops, path.path);
1327    /// # Ok(()) }
1328    /// ```
1329    pub async fn memory_path(&self, source_id: &str, target_id: &str) -> Result<GraphPath> {
1330        let url = format!(
1331            "{}/v1/memories/{}/path?target={}",
1332            self.base_url,
1333            source_id,
1334            urlencoding::encode(target_id)
1335        );
1336        let response = self.client.get(&url).send().await?;
1337        self.handle_response(response).await
1338    }
1339
1340    /// Create an explicit edge between two memories.
1341    ///
1342    /// Requires CE-5 (Memory Knowledge Graph) on the server.
1343    ///
1344    /// # Example
1345    /// ```no_run
1346    /// # use dakera_client::{DakeraClient, EdgeType};
1347    /// # async fn example(client: &DakeraClient) -> dakera_client::Result<()> {
1348    /// let resp = client.memory_link("mem-abc", "mem-xyz", EdgeType::LinkedBy).await?;
1349    /// println!("Created edge: {}", resp.edge.id);
1350    /// # Ok(()) }
1351    /// ```
1352    pub async fn memory_link(
1353        &self,
1354        source_id: &str,
1355        target_id: &str,
1356        edge_type: EdgeType,
1357    ) -> Result<GraphLinkResponse> {
1358        let url = format!("{}/v1/memories/{}/links", self.base_url, source_id);
1359        let request = GraphLinkRequest {
1360            target_id: target_id.to_string(),
1361            edge_type,
1362        };
1363        let response = self.client.post(&url).json(&request).send().await?;
1364        self.handle_response(response).await
1365    }
1366
1367    /// Export the full knowledge graph for an agent.
1368    ///
1369    /// Requires CE-5 (Memory Knowledge Graph) on the server.
1370    ///
1371    /// # Arguments
1372    /// * `agent_id` – Agent whose graph to export.
1373    /// * `format` – Export format: `"json"` (default), `"graphml"`, or `"csv"`.
1374    pub async fn agent_graph_export(&self, agent_id: &str, format: &str) -> Result<GraphExport> {
1375        let url = format!(
1376            "{}/v1/agents/{}/graph/export?format={}",
1377            self.base_url, agent_id, format
1378        );
1379        let response = self.client.get(&url).send().await?;
1380        self.handle_response(response).await
1381    }
1382
1383    // ========================================================================
1384    // Session Operations
1385    // ========================================================================
1386
1387    /// Start a new session for an agent
1388    pub async fn start_session(&self, agent_id: &str) -> Result<Session> {
1389        let url = format!("{}/v1/sessions/start", self.base_url);
1390        let request = SessionStartRequest {
1391            agent_id: agent_id.to_string(),
1392            metadata: None,
1393        };
1394        let response = self.client.post(&url).json(&request).send().await?;
1395        let resp: SessionStartResponse = self.handle_response(response).await?;
1396        Ok(resp.session)
1397    }
1398
1399    /// Start a session with metadata
1400    pub async fn start_session_with_metadata(
1401        &self,
1402        agent_id: &str,
1403        metadata: serde_json::Value,
1404    ) -> Result<Session> {
1405        let url = format!("{}/v1/sessions/start", self.base_url);
1406        let request = SessionStartRequest {
1407            agent_id: agent_id.to_string(),
1408            metadata: Some(metadata),
1409        };
1410        let response = self.client.post(&url).json(&request).send().await?;
1411        let resp: SessionStartResponse = self.handle_response(response).await?;
1412        Ok(resp.session)
1413    }
1414
1415    /// End a session, optionally with a summary.
1416    /// Returns the session state and the total memory count at close.
1417    pub async fn end_session(
1418        &self,
1419        session_id: &str,
1420        summary: Option<String>,
1421    ) -> Result<SessionEndResponse> {
1422        let url = format!("{}/v1/sessions/{}/end", self.base_url, session_id);
1423        let request = SessionEndRequest { summary };
1424        let response = self.client.post(&url).json(&request).send().await?;
1425        self.handle_response(response).await
1426    }
1427
1428    /// Get a session by ID
1429    pub async fn get_session(&self, session_id: &str) -> Result<Session> {
1430        let url = format!("{}/v1/sessions/{}", self.base_url, session_id);
1431        let response = self.client.get(&url).send().await?;
1432        self.handle_response(response).await
1433    }
1434
1435    /// List sessions for an agent
1436    pub async fn list_sessions(&self, agent_id: &str) -> Result<Vec<Session>> {
1437        let url = format!("{}/v1/sessions?agent_id={}", self.base_url, agent_id);
1438        let response = self.client.get(&url).send().await?;
1439        let wrapper: ListSessionsResponse = self.handle_response(response).await?;
1440        Ok(wrapper.sessions)
1441    }
1442
1443    /// Get memories in a session
1444    pub async fn session_memories(&self, session_id: &str) -> Result<RecallResponse> {
1445        let url = format!("{}/v1/sessions/{}/memories", self.base_url, session_id);
1446        let response = self.client.get(&url).send().await?;
1447        self.handle_response(response).await
1448    }
1449
1450    // ========================================================================
1451    // CE-2: Batch Recall / Forget
1452    // ========================================================================
1453
1454    /// Bulk-recall memories using filter predicates (CE-2).
1455    ///
1456    /// Uses `POST /v1/memories/recall/batch` — no embedding required.
1457    ///
1458    /// # Example
1459    ///
1460    /// ```rust,no_run
1461    /// use dakera_client::{DakeraClient, memory::{BatchRecallRequest, BatchMemoryFilter}};
1462    ///
1463    /// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
1464    /// let client = DakeraClient::new("http://localhost:3000")?;
1465    ///
1466    /// let filter = BatchMemoryFilter::default().with_min_importance(0.7);
1467    /// let req = BatchRecallRequest::new("agent-1").with_filter(filter).with_limit(50);
1468    /// let resp = client.batch_recall(req).await?;
1469    /// println!("Found {} memories", resp.filtered);
1470    /// # Ok(())
1471    /// # }
1472    /// ```
1473    pub async fn batch_recall(&self, request: BatchRecallRequest) -> Result<BatchRecallResponse> {
1474        let url = format!("{}/v1/memories/recall/batch", self.base_url);
1475        let response = self.client.post(&url).json(&request).send().await?;
1476        self.handle_response(response).await
1477    }
1478
1479    /// Bulk-delete memories using filter predicates (CE-2).
1480    ///
1481    /// Uses `DELETE /v1/memories/forget/batch`.  The server requires at least
1482    /// one filter predicate to be set as a safety guard.
1483    ///
1484    /// # Example
1485    ///
1486    /// ```rust,no_run
1487    /// use dakera_client::{DakeraClient, memory::{BatchForgetRequest, BatchMemoryFilter}};
1488    ///
1489    /// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
1490    /// let client = DakeraClient::new("http://localhost:3000")?;
1491    ///
1492    /// let filter = BatchMemoryFilter::default().with_min_importance(0.0).with_max_importance(0.2);
1493    /// let resp = client.batch_forget(BatchForgetRequest::new("agent-1", filter)).await?;
1494    /// println!("Deleted {} memories", resp.deleted_count);
1495    /// # Ok(())
1496    /// # }
1497    /// ```
1498    pub async fn batch_forget(&self, request: BatchForgetRequest) -> Result<BatchForgetResponse> {
1499        let url = format!("{}/v1/memories/forget/batch", self.base_url);
1500        let response = self.client.delete(&url).json(&request).send().await?;
1501        self.handle_response(response).await
1502    }
1503
1504    // ========================================================================
1505    // DX-1: Memory Import / Export
1506    // ========================================================================
1507
1508    /// Import memories from an external format (DX-1).
1509    ///
1510    /// Supported formats: `"jsonl"`, `"mem0"`, `"zep"`, `"csv"`.
1511    ///
1512    /// ```no_run
1513    /// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
1514    /// let client = dakera_client::DakeraClient::new("http://localhost:3000")?;
1515    /// let data = serde_json::json!([{"content": "hello", "agent_id": "agent-1"}]);
1516    /// let resp = client.import_memories(data, "jsonl", None, None).await?;
1517    /// println!("Imported {} memories", resp.imported_count);
1518    /// # Ok(())
1519    /// # }
1520    /// ```
1521    pub async fn import_memories(
1522        &self,
1523        data: serde_json::Value,
1524        format: &str,
1525        agent_id: Option<&str>,
1526        namespace: Option<&str>,
1527    ) -> Result<MemoryImportResponse> {
1528        let mut body = serde_json::json!({"data": data, "format": format});
1529        if let Some(aid) = agent_id {
1530            body["agent_id"] = serde_json::Value::String(aid.to_string());
1531        }
1532        if let Some(ns) = namespace {
1533            body["namespace"] = serde_json::Value::String(ns.to_string());
1534        }
1535        let url = format!("{}/v1/import", self.base_url);
1536        let response = self.client.post(&url).json(&body).send().await?;
1537        self.handle_response(response).await
1538    }
1539
1540    /// Export memories in a portable format (DX-1).
1541    ///
1542    /// Supported formats: `"jsonl"`, `"mem0"`, `"zep"`, `"csv"`.
1543    pub async fn export_memories(
1544        &self,
1545        format: &str,
1546        agent_id: Option<&str>,
1547        namespace: Option<&str>,
1548        limit: Option<u32>,
1549    ) -> Result<MemoryExportResponse> {
1550        let mut params = vec![("format", format.to_string())];
1551        if let Some(aid) = agent_id {
1552            params.push(("agent_id", aid.to_string()));
1553        }
1554        if let Some(ns) = namespace {
1555            params.push(("namespace", ns.to_string()));
1556        }
1557        if let Some(l) = limit {
1558            params.push(("limit", l.to_string()));
1559        }
1560        let url = format!("{}/v1/export", self.base_url);
1561        let response = self.client.get(&url).query(&params).send().await?;
1562        self.handle_response(response).await
1563    }
1564
1565    // ========================================================================
1566    // OBS-1: Business-Event Audit Log
1567    // ========================================================================
1568
1569    /// List paginated audit log entries (OBS-1).
1570    pub async fn list_audit_events(&self, query: AuditQuery) -> Result<AuditListResponse> {
1571        let url = format!("{}/v1/audit", self.base_url);
1572        let response = self.client.get(&url).query(&query).send().await?;
1573        self.handle_response(response).await
1574    }
1575
1576    /// Stream live audit events via SSE (OBS-1).
1577    ///
1578    /// Returns a [`tokio::sync::mpsc::Receiver`] that yields [`DakeraEvent`] results.
1579    pub async fn stream_audit_events(
1580        &self,
1581        agent_id: Option<&str>,
1582        event_type: Option<&str>,
1583    ) -> Result<tokio::sync::mpsc::Receiver<Result<crate::events::DakeraEvent>>> {
1584        let mut params: Vec<(&str, String)> = Vec::new();
1585        if let Some(aid) = agent_id {
1586            params.push(("agent_id", aid.to_string()));
1587        }
1588        if let Some(et) = event_type {
1589            params.push(("event_type", et.to_string()));
1590        }
1591        let base = format!("{}/v1/audit/stream", self.base_url);
1592        let url = if params.is_empty() {
1593            base
1594        } else {
1595            let qs = params
1596                .iter()
1597                .map(|(k, v)| format!("{}={}", k, urlencoding::encode(v)))
1598                .collect::<Vec<_>>()
1599                .join("&");
1600            format!("{}?{}", base, qs)
1601        };
1602        self.stream_sse(url).await
1603    }
1604
1605    /// Bulk-export audit log entries (OBS-1).
1606    pub async fn export_audit(
1607        &self,
1608        format: &str,
1609        agent_id: Option<&str>,
1610        event_type: Option<&str>,
1611        from_ts: Option<u64>,
1612        to_ts: Option<u64>,
1613    ) -> Result<AuditExportResponse> {
1614        let mut body = serde_json::json!({"format": format});
1615        if let Some(aid) = agent_id {
1616            body["agent_id"] = serde_json::Value::String(aid.to_string());
1617        }
1618        if let Some(et) = event_type {
1619            body["event_type"] = serde_json::Value::String(et.to_string());
1620        }
1621        if let Some(f) = from_ts {
1622            body["from"] = serde_json::Value::Number(f.into());
1623        }
1624        if let Some(t) = to_ts {
1625            body["to"] = serde_json::Value::Number(t.into());
1626        }
1627        let url = format!("{}/v1/audit/export", self.base_url);
1628        let response = self.client.post(&url).json(&body).send().await?;
1629        self.handle_response(response).await
1630    }
1631
1632    // ========================================================================
1633    // EXT-1: External Extraction Providers
1634    // ========================================================================
1635
1636    /// Extract entities from text using a pluggable provider (EXT-1).
1637    ///
1638    /// Provider hierarchy: per-request > namespace default > GLiNER (bundled).
1639    /// Supported providers: `"gliner"`, `"openai"`, `"anthropic"`, `"openrouter"`, `"ollama"`.
1640    pub async fn extract_text(
1641        &self,
1642        text: &str,
1643        namespace: Option<&str>,
1644        provider: Option<&str>,
1645        model: Option<&str>,
1646    ) -> Result<ExtractionResult> {
1647        let mut body = serde_json::json!({"text": text});
1648        if let Some(ns) = namespace {
1649            body["namespace"] = serde_json::Value::String(ns.to_string());
1650        }
1651        if let Some(p) = provider {
1652            body["provider"] = serde_json::Value::String(p.to_string());
1653        }
1654        if let Some(m) = model {
1655            body["model"] = serde_json::Value::String(m.to_string());
1656        }
1657        let url = format!("{}/v1/extract", self.base_url);
1658        let response = self.client.post(&url).json(&body).send().await?;
1659        self.handle_response(response).await
1660    }
1661
1662    /// List available extraction providers and their models (EXT-1).
1663    pub async fn list_extract_providers(&self) -> Result<Vec<ExtractionProviderInfo>> {
1664        let url = format!("{}/v1/extract/providers", self.base_url);
1665        let response = self.client.get(&url).send().await?;
1666        let result: ExtractProvidersResponse = self.handle_response(response).await?;
1667        Ok(match result {
1668            ExtractProvidersResponse::List(v) => v,
1669            ExtractProvidersResponse::Object { providers } => providers,
1670        })
1671    }
1672
1673    /// Set the default extraction provider for a namespace (EXT-1).
1674    pub async fn configure_namespace_extractor(
1675        &self,
1676        namespace: &str,
1677        provider: &str,
1678        model: Option<&str>,
1679    ) -> Result<serde_json::Value> {
1680        let mut body = serde_json::json!({"provider": provider});
1681        if let Some(m) = model {
1682            body["model"] = serde_json::Value::String(m.to_string());
1683        }
1684        let url = format!(
1685            "{}/v1/namespaces/{}/extractor",
1686            self.base_url,
1687            urlencoding::encode(namespace)
1688        );
1689        let response = self.client.patch(&url).json(&body).send().await?;
1690        self.handle_response(response).await
1691    }
1692
1693    // =========================================================================
1694    // SEC-3: AES-256-GCM Encryption Key Rotation
1695    // =========================================================================
1696
1697    /// Re-encrypt all memory content blobs with a new AES-256-GCM key (SEC-3).
1698    ///
1699    /// After this call the new key is active in the running process.
1700    /// The operator must update `DAKERA_ENCRYPTION_KEY` and restart to make
1701    /// the rotation durable across restarts.
1702    ///
1703    /// Requires Admin scope.
1704    ///
1705    /// # Arguments
1706    /// * `new_key` - New passphrase or 64-char hex key.
1707    /// * `namespace` - If `Some`, rotate only this namespace. `None` rotates all.
1708    pub async fn rotate_encryption_key(
1709        &self,
1710        new_key: &str,
1711        namespace: Option<&str>,
1712    ) -> Result<RotateEncryptionKeyResponse> {
1713        let body = RotateEncryptionKeyRequest {
1714            new_key: new_key.to_string(),
1715            namespace: namespace.map(|s| s.to_string()),
1716        };
1717        let url = format!("{}/v1/admin/encryption/rotate-key", self.base_url);
1718        let response = self.client.post(&url).json(&body).send().await?;
1719        self.handle_response(response).await
1720    }
1721}