Edge Key Format

// Format: "{entity}+{entityId}+{relationship}+{targetEntity}"

// Examples:
folder+abc123+attachment+post     // Posts in folder
user+xyz789+author+folder         // Folders by user
user+xyz789+rates+user            // Users that user follows
folder+abc123+access+user         // Users with access

Usage Example

import { getEdges, setEdges } from "@/lib/cache";

// Query edges from the cache
const postIds = await getEdges("folder", "folder-123", "attachment", "post");
// Returns: ["post-1", "post-2", "post-3"]

// Build the key manually
const edgeKey = `folder+${folderId}+attachment+post`;
const cached = await db.get("__EDGES", edgeKey);

// Update edges (after API response)
await setEdges("folder", "folder-123", "attachment", "post", [
  "post-1", "post-2", "post-3", "post-4"
]);

Cache Table Schema

// __EDGES table in IndexedDB
{
  key: string;           // Edge key format
  value: string[];       // Array of target IDs
  updated: number;       // Timestamp for cache invalidation
}

// Example entry:
{
  key: "folder+abc123+attachment+post",
  value: ["post-1", "post-2", "post-3"],
  updated: 1706886400000
}

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