feat: version 2 beta

tests/adapters/mocks/aggregates.ts

@@ -0,0 +1,134 @@
+import { AggregateRoot } from "../../../libraries/aggregate.ts";
+import { AggregateFactory } from "../../../libraries/aggregate-factory.ts";
+import { makeId } from "../../../libraries/nanoid.ts";
+import { makeAggregateReducer } from "../../../libraries/reducer.ts";
+import { EventStoreFactory } from "./events.ts";
+
+export class User extends AggregateRoot<EventStoreFactory> {
+  static override readonly name = "user";
+
+  id: string = "";
+  name: Name = {
+    given: "",
+    family: "",
+  };
+  email: string = "";
+  active: boolean = true;
+  posts: UserPosts = {
+    list: [],
+    count: 0,
+  };
+
+  // -------------------------------------------------------------------------
+  // Factories
+  // -------------------------------------------------------------------------
+
+  static reducer = makeAggregateReducer(User);
+
+  static create(name: Name, email: string): User {
+    const user = new User();
+    user.push({
+      type: "user:created",
+      stream: makeId(),
+      data: { name, email },
+      meta: { auditor: "foo" },
+    });
+    return user;
+  }
+
+  static async getById(userId: string): Promise<User | undefined> {
+    return this.$store.reduce({ name: "user", stream: userId, reducer: this.reducer });
+  }
+
+  // -------------------------------------------------------------------------
+  // Reducer
+  // -------------------------------------------------------------------------
+
+  with(event: EventStoreFactory["$events"][number]["$record"]) {
+    switch (event.type) {
+      case "user:created": {
+        this.id = event.stream;
+        this.name.given = event.data.name?.given ?? "";
+        this.name.family = event.data.name?.family ?? "";
+        this.email = event.data.email;
+        break;
+      }
+      case "user:name:given-set": {
+        this.name.given = event.data;
+        break;
+      }
+      case "user:name:family-set": {
+        this.name.family = event.data;
+        break;
+      }
+      case "user:email-set": {
+        this.email = event.data;
+        break;
+      }
+      case "user:activated": {
+        this.active = true;
+        break;
+      }
+      case "user:deactivated": {
+        this.active = false;
+        break;
+      }
+    }
+  }
+
+  // -------------------------------------------------------------------------
+  // Actions
+  // -------------------------------------------------------------------------
+
+  setGivenName(given: string): this {
+    return this.push({
+      type: "user:name:given-set",
+      stream: this.id,
+      data: given,
+      meta: { auditor: "foo" },
+    });
+  }
+
+  setFamilyName(family: string): this {
+    return this.push({
+      type: "user:name:family-set",
+      stream: this.id,
+      data: family,
+      meta: { auditor: "foo" },
+    });
+  }
+
+  setEmail(email: string, auditor: string): this {
+    return this.push({
+      type: "user:email-set",
+      stream: this.id,
+      data: email,
+      meta: { auditor },
+    });
+  }
+
+  async snapshot(): Promise<this> {
+    await this.$store.createSnapshot({ name: "user", stream: this.id, reducer: User.reducer });
+    return this;
+  }
+
+  // -------------------------------------------------------------------------
+  // Helpers
+  // -------------------------------------------------------------------------
+
+  fullName(): string {
+    return `${this.name.given} ${this.name.family}`;
+  }
+}
+
+export const aggregates = new AggregateFactory([User]);
+
+type Name = {
+  given: string;
+  family: string;
+};
+
+type UserPosts = {
+  list: string[];
+  count: number;
+};