/**
 * MongoDB indexes for the shared reachability store collections used by Signals/Policy/Scanner.
 * Run with: mongosh stellaops_db < reachability_store_indices.js
 *
 * Collections:
 * - func_nodes: canonical function nodes keyed by graph + symbol ID and joinable by (purl, symbolDigest)
 * - call_edges: canonical call edges keyed by graph and joinable by (purl, symbolDigest)
 * - cve_func_hits: per-subject mapping of CVE -> affected/reachable functions with evidence pointers
 *
 * Created: 2025-12-13 (SIG-STORE-401-016)
 */

// Switch to the target database (override via --eval "var dbName='custom'" if needed)
const targetDb = typeof dbName !== 'undefined' ? dbName : 'stellaops';
db = db.getSiblingDB(targetDb);

print(`Creating reachability store indexes on ${targetDb}...`);

print(`- func_nodes`);
db.func_nodes.createIndex(
  { "graphHash": 1, "symbolId": 1 },
  { name: "func_nodes_by_graph_symbol", unique: true, background: true }
);
db.func_nodes.createIndex(
  { "purl": 1, "symbolDigest": 1 },
  { name: "func_nodes_by_purl_symboldigest", background: true, sparse: true }
);
db.func_nodes.createIndex(
  { "codeId": 1 },
  { name: "func_nodes_by_code_id", background: true, sparse: true }
);

print(`- call_edges`);
db.call_edges.createIndex(
  { "graphHash": 1, "sourceId": 1, "targetId": 1, "type": 1 },
  { name: "call_edges_by_graph_edge", unique: true, background: true }
);
db.call_edges.createIndex(
  { "graphHash": 1, "sourceId": 1 },
  { name: "call_edges_by_graph_source", background: true }
);
db.call_edges.createIndex(
  { "graphHash": 1, "targetId": 1 },
  { name: "call_edges_by_graph_target", background: true }
);
db.call_edges.createIndex(
  { "purl": 1, "symbolDigest": 1 },
  { name: "call_edges_by_purl_symboldigest", background: true, sparse: true }
);

print(`- cve_func_hits`);
db.cve_func_hits.createIndex(
  { "subjectKey": 1, "cveId": 1 },
  { name: "cve_func_hits_by_subject_cve", background: true }
);
db.cve_func_hits.createIndex(
  { "cveId": 1, "purl": 1, "symbolDigest": 1 },
  { name: "cve_func_hits_by_cve_purl_symboldigest", background: true, sparse: true }
);
db.cve_func_hits.createIndex(
  { "graphHash": 1 },
  { name: "cve_func_hits_by_graph", background: true, sparse: true }
);

print("\nReachability store indexes created successfully.");
print("Run db.func_nodes.getIndexes(), db.call_edges.getIndexes(), db.cve_func_hits.getIndexes() to verify.");