/**
 * MemPalace data model — TypeScript port of the core MemPalace concepts.
 *
 * Mental model:
 *
 *   Wing     ─ a top-level domain ("projects", "people", "code", "wisdom")
 *   Room     ─ a category inside a wing ("crowcoder", "abc-reborn", ...)
 *   Drawer   ─ an individual memory item: a chunk of text + tags + metadata
 *   Tunnel   ─ a directed link between two drawers, typed by relation
 *   Triple   ─ a knowledge-graph fact: (subject, predicate, object)
 *
 * Drawers are the atomic unit of memory. Wings + rooms give them addressable
 * structure. Tunnels and KG triples give them relational structure.
 *
 * Two stores live side-by-side:
 *   GLOBAL   ~/.compact-agent/memory/    cross-project knowledge (user prefs,
 *                                    recurring patterns, skills)
 *   PROJECT  <cwd>/.compact-agent/memory/  this-codebase-specific (e.g. "build
 *                                    is broken because X", "the queue lives
 *                                    in services/queue/...")
 *
 * The agent picks which store to query based on the request. User-modeling
 * queries hit global; codebase queries hit project. Search APIs accept a
 * Scope hint or 'both' to search across.
 */
/**
 * Which memory store an operation targets.
 *
 *   'global'  — ~/.compact-agent/memory/ (cross-project)
 *   'project' — <cwd>/.compact-agent/memory/ (per-repo)
 *   'both'    — search both; writes pick based on content (global for user
 *               preferences, project for codebase facts)
 */
export type Scope = 'global' | 'project' | 'both';
/**
 * A drawer is one memory item — a chunk of text living at wing/room. Tags
 * are free-form lowercase strings used for filtering. Importance is a 0–1
 * heuristic the agent or user can set to bias search ordering.
 */
export interface Drawer {
    id: string;
    wing: string;
    room: string;
    content: string;
    tags: string[];
    importance: number;
    createdAt: string;
    updatedAt: string;
    scope: Scope;
    sourceSessionId?: string;
}
/**
 * Convenience metadata about a wing — populated by `listWings` for UI/
 * status output. Not stored separately; derived from drawer counts.
 */
export interface WingMeta {
    name: string;
    rooms: string[];
    drawerCount: number;
}
/**
 * Same for rooms.
 */
export interface RoomMeta {
    wing: string;
    name: string;
    drawerCount: number;
    lastTouched: string;
}
/**
 * A tunnel is a directed link from one drawer to another with a labelled
 * relation. Use cases:
 *   - "drawer A inspired drawer B" (relation: "inspired")
 *   - "drawer A supersedes drawer B" (relation: "supersedes")
 *   - "drawer A is part of drawer B's project" (relation: "in-project")
 *
 * Bidirectional traversal is supported by following tunnels in reverse.
 */
export interface Tunnel {
    id: string;
    fromDrawerId: string;
    toDrawerId: string;
    relation: string;
    createdAt: string;
    scope: Scope;
}
/**
 * A knowledge-graph triple — semantic-web style. Stored separately from
 * drawers because triples express *facts* (small, atomic, queryable in
 * aggregate) whereas drawers express *content* (larger, narrative).
 *
 * Example: ("rsfit", "owns", "Crowcoder") or ("compact-agent", "uses",
 * "OpenRouter").
 */
export interface KGTriple {
    id: string;
    subject: string;
    predicate: string;
    object: string;
    confidence: number;
    sourceDrawerId?: string;
    sourceSessionId?: string;
    createdAt: string;
    scope: Scope;
    validFrom?: string;
    validTo?: string;
}
/**
 * Internal disk schema. One JSON file per store containing all drawers,
 * tunnels, and triples. Simple, atomic-write-via-rename safe.
 *
 * For very large stores (>10k drawers) this approach will get slow; the
 * intent is to swap to SQLite/FTS5 later behind the same Store interface.
 */
export interface StoreState {
    schemaVersion: number;
    drawers: Drawer[];
    tunnels: Tunnel[];
    triples: KGTriple[];
}
export declare const SCHEMA_VERSION = 1;
/**
 * Search options shared across query APIs.
 */
export interface SearchOptions {
    scope?: Scope;
    wing?: string;
    room?: string;
    tags?: string[];
    limit?: number;
    minImportance?: number;
}
/**
 * A scored search hit — the drawer plus the relevance score the search
 * function computed. Higher = more relevant. Score is unitless; only
 * meaningful for ordering, not absolute comparison.
 */
export interface SearchHit {
    drawer: Drawer;
    score: number;
    matchedFields: ('content' | 'tags' | 'wing' | 'room')[];
}