Add domain package

packages/domain/__tests__/Profile.test.ts

@@ -0,0 +1,73 @@
+import {describe, it, expect} from "vitest"
+import {makeSecret, PROFILE, NOTE} from "@welshman/util"
+import type {TrustedEvent} from "@welshman/util"
+import {Nip01Signer} from "@welshman/signer"
+import {Profile, displayPubkey} from "../src/Profile"
+
+const signer = new Nip01Signer(makeSecret())
+const pubkey = "ee".repeat(32)
+
+const makeEvent = (overrides: Partial<TrustedEvent> = {}): TrustedEvent =>
+  ({
+    id: "ff".repeat(32),
+    pubkey,
+    created_at: 0,
+    kind: PROFILE,
+    tags: [],
+    content: "",
+    sig: "00".repeat(64),
+    ...overrides,
+  }) as TrustedEvent
+
+describe("Profile", () => {
+  it("parses and re-signs profile content", async () => {
+    const event = makeEvent({
+      content: JSON.stringify({name: "alice", about: "hi"}),
+      tags: [["alt", "profile"]],
+    })
+
+    const profile = Profile.parse(event)
+
+    expect(profile.values.name).toBe("alice")
+    expect(profile.hasName()).toBe(true)
+    expect(profile.display()).toBe("alice")
+
+    const signed = await profile.toEvent(signer)
+
+    expect(signed.kind).toBe(PROFILE)
+    expect(JSON.parse(signed.content).name).toBe("alice")
+    // Source tags are preserved.
+    expect(signed.tags).toEqual([["alt", "profile"]])
+  })
+
+  it("derives lnurl from a lud16 address", () => {
+    const profile = Profile.make({lud16: "alice@example.com"})
+
+    expect(profile.values.lnurl).toBeTruthy()
+  })
+
+  it("set merges and re-derives values", () => {
+    const profile = Profile.make({name: "alice"})
+
+    profile.set({about: "hello"})
+
+    expect(profile.values.name).toBe("alice")
+    expect(profile.values.about).toBe("hello")
+  })
+
+  it("display falls back to a shortened npub", () => {
+    const profile = Profile.parse(makeEvent({content: "{}"}))
+
+    expect(profile.display()).toBe(displayPubkey(pubkey))
+  })
+
+  it("serializes to JSON", () => {
+    const profile = Profile.make({name: "alice"})
+
+    expect(JSON.parse(JSON.stringify(profile))).toEqual({name: "alice"})
+  })
+
+  it("throws on the wrong kind", () => {
+    expect(() => Profile.parse(makeEvent({kind: NOTE}))).toThrow()
+  })
+})