feat: version 2 beta

adapters/browser/database.ts

@@ -0,0 +1,73 @@
+import { IndexedDatabase, MemoryDatabase } from "@valkyr/db";
+
+import { EventRecord } from "../../libraries/event.ts";
+
+export function getEventStoreDatabase(name: string, adapter: Adapter): EventStoreDB {
+  switch (adapter) {
+    case "indexeddb": {
+      return new IndexedDatabase<Collections>({
+        name,
+        version: 1,
+        registrars: [
+          {
+            name: "events",
+            indexes: [
+              ["stream", { unique: false }],
+              ["created", { unique: false }],
+              ["recorded", { unique: false }],
+            ],
+          },
+          {
+            name: "relations",
+            indexes: [
+              ["key", { unique: false }],
+              ["stream", { unique: false }],
+            ],
+          },
+          {
+            name: "snapshots",
+            indexes: [
+              ["name", { unique: false }],
+              ["stream", { unique: false }],
+              ["cursor", { unique: false }],
+            ],
+          },
+        ],
+      });
+    }
+    case "memorydb": {
+      return new MemoryDatabase<Collections>({
+        name,
+        registrars: [{ name: "events" }, { name: "relations" }, { name: "snapshots" }],
+      });
+    }
+  }
+}
+
+/*
+ |--------------------------------------------------------------------------------
+ | Types
+ |--------------------------------------------------------------------------------
+ */
+
+export type EventStoreDB = IndexedDatabase<Collections> | MemoryDatabase<Collections>;
+
+export type Adapter = "indexeddb" | "memorydb";
+
+export type Collections = {
+  events: EventRecord;
+  relations: Relation;
+  snapshots: Snapshot;
+};
+
+export type Relation = {
+  key: string;
+  stream: string;
+};
+
+export type Snapshot = {
+  name: string;
+  stream: string;
+  cursor: string;
+  state: Record<string, unknown>;
+};