refactor(chat): split machine by business flow

This commit is contained in:
2026-07-14 19:04:32 +08:00
parent e48efc36ba
commit 84e677f687
11 changed files with 1403 additions and 1295 deletions
@@ -0,0 +1,90 @@
import { describe, expect, it } from "vitest";
import { createActor, fromCallback, waitFor } from "xstate";
import type { UiMessage } from "@/data/dto/chat";
import type { ChatEvent } from "@/stores/chat/chat-events";
import { chatMachine } from "@/stores/chat/chat-machine";
import { createTestChatMachine } from "./chat-machine.test-utils";
describe("chat history flow", () => {
it("enters user ready after history is loaded", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
const snapshot = actor.getSnapshot();
expect(snapshot.context.historyLoaded).toBe(true);
actor.stop();
});
it("renders local history before network history sync finishes", async () => {
let resolveNetwork!: () => void;
const networkReleased = new Promise<void>((resolve) => {
resolveNetwork = resolve;
});
const localMessage: UiMessage = {
id: "local-msg",
content: "cached local message",
isFromAI: true,
date: "2026-07-02",
};
const networkMessage: UiMessage = {
id: "network-msg",
content: "fresh network message",
isFromAI: true,
date: "2026-07-02",
};
const machine = chatMachine.provide({
actors: {
loadHistory: fromCallback<ChatEvent>(({ sendBack }) => {
sendBack({
type: "ChatLocalHistoryLoaded",
output: {
messages: [localMessage],
localCount: 1,
},
});
void networkReleased.then(() => {
sendBack({
type: "ChatNetworkHistoryLoaded",
output: {
messages: [networkMessage],
localOverwritten: true,
localCount: 1,
networkCount: 1,
},
});
});
return () => undefined;
}),
},
});
const actor = createActor(machine).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ id: "local-msg", content: "cached local message" },
]);
resolveNetwork();
await waitFor(
actor,
(snapshot) => snapshot.context.messages[0]?.id === "network-msg",
);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ id: "network-msg", content: "fresh network message" },
]);
actor.stop();
});
});
@@ -0,0 +1,154 @@
import { fromCallback, fromPromise } from "xstate";
import {
ChatSendResponse,
UnlockPrivateResponse,
type UiMessage,
} from "@/data/dto/chat";
import { chatMachine } from "@/stores/chat/chat-machine";
import type { ChatEvent } from "@/stores/chat/chat-events";
import type {
UnlockMessageOutput as MachineUnlockMessageOutput,
UnlockMessageRequest,
} from "@/stores/chat/chat-machine.helpers";
export interface SendMessageHttpOutput {
response: ChatSendResponse;
reply: UiMessage | null;
}
export interface UnlockHistoryOutput {
unlocked: boolean;
reason: string;
shortfallCredits: number;
messages: UiMessage[];
}
export interface TestUnlockMessageOutput {
messageId: string;
response: UnlockPrivateResponse;
}
export function makeChatSendResponse(): ChatSendResponse {
return ChatSendResponse.from({
reply: "",
audioUrl: "",
messageId: "msg-1",
isGuest: false,
timestamp: Date.now(),
image: { type: null, url: null },
lockDetail: {
locked: false,
reason: null,
},
});
}
export function makeUnlockPrivateResponse(
overrides: Partial<Parameters<typeof UnlockPrivateResponse.from>[0]> = {},
): UnlockPrivateResponse {
return UnlockPrivateResponse.from({
unlocked: true,
content: "unlocked content",
audioUrl: "",
reason: "ok",
creditBalance: 90,
creditsCharged: 10,
requiredCredits: 10,
shortfallCredits: 0,
...overrides,
});
}
export function createTestChatMachine(
options: {
historyMessages?: UiMessage[];
sendMessageHttpError?: Error;
unlockHistoryOutput?: UnlockHistoryOutput;
unlockHistoryError?: Error;
unlockMessageOutput?: TestUnlockMessageOutput;
} = {},
) {
return chatMachine.provide({
actors: {
loadHistory: createLoadHistoryCallback(options.historyMessages ?? []),
sendMessageHttp: fromPromise<
SendMessageHttpOutput,
{ content: string }
>(async () => {
if (options.sendMessageHttpError) {
throw options.sendMessageHttpError;
}
return {
response: makeChatSendResponse(),
reply: null,
};
}),
httpMessageQueue: fromCallback<ChatEvent>(({ receive, sendBack }) => {
receive((event) => {
if (event.type !== "ChatSendMessage") return;
sendBack({ type: "ChatQueuedSendStarted" });
sendBack({
type: "ChatQueuedHttpDone",
output: {
response: makeChatSendResponse(),
reply: null,
},
});
});
return () => undefined;
}),
unlockHistory: fromPromise<UnlockHistoryOutput>(async () => {
if (options.unlockHistoryError) {
throw options.unlockHistoryError;
}
return {
unlocked: true,
reason: "ok",
shortfallCredits: 0,
messages: [],
...options.unlockHistoryOutput,
};
}),
unlockMessage: fromPromise<
MachineUnlockMessageOutput,
UnlockMessageRequest
>(async ({ input }) => {
const output = options.unlockMessageOutput ?? {
messageId: input.messageId ?? input.displayMessageId,
response: makeUnlockPrivateResponse(),
};
return {
displayMessageId: input.displayMessageId,
request: input,
response: output.response,
};
}),
},
});
}
export function createLoadHistoryCallback(
messages: UiMessage[],
networkMessages: UiMessage[] = messages,
) {
return fromCallback<ChatEvent>(({ sendBack }) => {
sendBack({
type: "ChatLocalHistoryLoaded",
output: {
messages,
localCount: messages.length,
},
});
sendBack({
type: "ChatNetworkHistoryLoaded",
output: {
messages: networkMessages,
localOverwritten: true,
localCount: messages.length,
networkCount: networkMessages.length,
},
});
return () => undefined;
});
}
@@ -0,0 +1,148 @@
import { describe, expect, it } from "vitest";
import { createActor, fromCallback, fromPromise, waitFor } from "xstate";
import type { ChatEvent } from "@/stores/chat/chat-events";
import { chatMachine } from "@/stores/chat/chat-machine";
import {
createLoadHistoryCallback,
createTestChatMachine,
makeChatSendResponse,
type SendMessageHttpOutput,
type UnlockHistoryOutput,
} from "./chat-machine.test-utils";
describe("chat send flow", () => {
it("allows multiple messages to be queued without leaving ready state", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "hello" });
actor.send({ type: "ChatSendMessage", content: "still there?" });
expect(actor.getSnapshot().matches({ userSession: "ready" })).toBe(true);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "hello", isFromAI: false },
{ content: "still there?", isFromAI: false },
]);
await waitFor(
actor,
(snapshot) => snapshot.context.pendingReplyCount === 0,
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
it("applies direct HTTP actor output with a type-bound action", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({
type: "ChatSendImage",
imageBase64: "data:image/png;base64,image",
});
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }) &&
snapshot.context.pendingReplyCount === 0,
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "[Image]", isFromAI: false },
]);
actor.stop();
});
it("restores ready state when the direct HTTP actor fails", async () => {
const actor = createActor(
createTestChatMachine({
sendMessageHttpError: new Error("send failed"),
}),
).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({
type: "ChatSendImage",
imageBase64: "data:image/png;base64,image",
});
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
it("tracks replying state by queued batch instead of user message count", async () => {
const machine = chatMachine.provide({
actors: {
loadHistory: createLoadHistoryCallback([]),
sendMessageHttp: fromPromise<
SendMessageHttpOutput,
{ content: string }
>(async () => ({
response: makeChatSendResponse(),
reply: null,
})),
httpMessageQueue: fromCallback<ChatEvent>(({ receive, sendBack }) => {
const pending: string[] = [];
receive((event) => {
if (event.type !== "ChatSendMessage") return;
pending.push(event.content);
if (pending.length !== 2) return;
sendBack({ type: "ChatQueuedSendStarted" });
sendBack({
type: "ChatQueuedHttpDone",
output: {
response: makeChatSendResponse(),
reply: null,
},
});
});
return () => undefined;
}),
unlockHistory: fromPromise<UnlockHistoryOutput>(async () => ({
unlocked: true,
reason: "ok",
shortfallCredits: 0,
messages: [],
})),
},
});
const actor = createActor(machine).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "first" });
actor.send({ type: "ChatSendMessage", content: "second" });
await waitFor(
actor,
(snapshot) => snapshot.context.messages.length === 2,
);
expect(actor.getSnapshot().context.pendingReplyCount).toBe(0);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
});
@@ -0,0 +1,123 @@
import { describe, expect, it } from "vitest";
import { createActor, waitFor } from "xstate";
import { createTestChatMachine } from "./chat-machine.test-utils";
describe("chat session flow", () => {
it("keeps guest logout disabled and supports user to guest transition", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({ type: "ChatLogout" });
expect(actor.getSnapshot().matches({ guestSession: "ready" })).toBe(true);
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.stop();
});
it("allows explicit logout from user session", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatLogout" });
expect(actor.getSnapshot().matches("idle")).toBe(true);
actor.stop();
});
it("keeps a promotion separate from normal history", async () => {
const actor = createActor(
createTestChatMachine({
historyMessages: [
{
id: "history-1",
content: "Existing history",
isFromAI: true,
date: "2026-07-13",
},
],
}),
).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({
type: "ChatPromotionInjected",
promotion: {
promotionType: "voice",
lockType: "voice_message",
clientLockId: "promotion-1",
createdAt: 1,
},
});
const context = actor.getSnapshot().context;
expect(context.messages).toHaveLength(1);
expect(context.promotion?.message).toMatchObject({
id: "promotion:promotion-1",
locked: true,
lockReason: "voice_message",
});
actor.stop();
});
it("switches to guest session when guest login arrives during user session", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.stop();
});
it("ignores repeated user login while an authenticated user session is active", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "keep this message" });
await waitFor(
actor,
(snapshot) => snapshot.context.messages.length === 1,
);
actor.send({ type: "ChatUserLogin", token: "another-token" });
expect(actor.getSnapshot().matches({ userSession: "ready" })).toBe(true);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "keep this message", isFromAI: false },
]);
actor.stop();
});
});
@@ -1,490 +1,14 @@
import { describe, expect, it } from "vitest";
import { createActor, fromCallback, fromPromise, waitFor } from "xstate";
import { createActor, waitFor } from "xstate";
import { ChatSendResponse } from "@/data/dto/chat";
import {
ChatSendResponse,
UnlockPrivateResponse,
type UiMessage,
} from "@/data/dto/chat";
import { chatMachine } from "@/stores/chat/chat-machine";
import type { ChatEvent } from "@/stores/chat/chat-events";
import type {
UnlockMessageOutput as MachineUnlockMessageOutput,
UnlockMessageRequest,
} from "@/stores/chat/chat-machine.helpers";
interface SendMessageHttpOutput {
response: ChatSendResponse;
reply: UiMessage | null;
}
interface UnlockHistoryOutput {
unlocked: boolean;
reason: string;
shortfallCredits: number;
messages: UiMessage[];
}
interface TestUnlockMessageOutput {
messageId: string;
response: UnlockPrivateResponse;
}
function makeChatSendResponse(): ChatSendResponse {
return ChatSendResponse.from({
reply: "",
audioUrl: "",
messageId: "msg-1",
isGuest: false,
timestamp: Date.now(),
image: { type: null, url: null },
lockDetail: {
locked: false,
reason: null,
},
});
}
function makeUnlockPrivateResponse(
overrides: Partial<Parameters<typeof UnlockPrivateResponse.from>[0]> = {},
): UnlockPrivateResponse {
return UnlockPrivateResponse.from({
unlocked: true,
content: "unlocked content",
audioUrl: "",
reason: "ok",
creditBalance: 90,
creditsCharged: 10,
requiredCredits: 10,
shortfallCredits: 0,
...overrides,
});
}
function createTestChatMachine(
options: {
historyMessages?: UiMessage[];
sendMessageHttpError?: Error;
unlockHistoryOutput?: UnlockHistoryOutput;
unlockHistoryError?: Error;
unlockMessageOutput?: TestUnlockMessageOutput;
} = {},
) {
return chatMachine.provide({
actors: {
loadHistory: createLoadHistoryCallback(options.historyMessages ?? []),
sendMessageHttp: fromPromise<
SendMessageHttpOutput,
{ content: string }
>(async () => {
if (options.sendMessageHttpError) {
throw options.sendMessageHttpError;
}
return {
response: makeChatSendResponse(),
reply: null,
};
}),
httpMessageQueue: fromCallback<ChatEvent>(({ receive, sendBack }) => {
receive((event) => {
if (event.type !== "ChatSendMessage") return;
sendBack({ type: "ChatQueuedSendStarted" });
sendBack({
type: "ChatQueuedHttpDone",
output: {
response: makeChatSendResponse(),
reply: null,
},
});
});
return () => undefined;
}),
unlockHistory: fromPromise<UnlockHistoryOutput>(async () => {
if (options.unlockHistoryError) {
throw options.unlockHistoryError;
}
return {
unlocked: true,
reason: "ok",
shortfallCredits: 0,
messages: [],
...options.unlockHistoryOutput,
};
}),
unlockMessage: fromPromise<
MachineUnlockMessageOutput,
UnlockMessageRequest
>(async ({ input }) => {
const output = options.unlockMessageOutput ?? {
messageId: input.messageId ?? input.displayMessageId,
response: makeUnlockPrivateResponse(),
};
return {
displayMessageId: input.displayMessageId,
request: input,
response: output.response,
};
}),
},
});
}
function createLoadHistoryCallback(
messages: UiMessage[],
networkMessages: UiMessage[] = messages,
) {
return fromCallback<ChatEvent>(({ sendBack }) => {
sendBack({
type: "ChatLocalHistoryLoaded",
output: {
messages,
localCount: messages.length,
},
});
sendBack({
type: "ChatNetworkHistoryLoaded",
output: {
messages: networkMessages,
localOverwritten: true,
localCount: messages.length,
networkCount: networkMessages.length,
},
});
return () => undefined;
});
}
describe("chatMachine transitions", () => {
it("keeps guest logout disabled and supports user to guest transition", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({ type: "ChatLogout" });
expect(actor.getSnapshot().matches({ guestSession: "ready" })).toBe(true);
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.stop();
});
it("allows explicit logout from user session", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatLogout" });
expect(actor.getSnapshot().matches("idle")).toBe(true);
actor.stop();
});
it("enters user ready after history is loaded", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
const snapshot = actor.getSnapshot();
expect(snapshot.context.historyLoaded).toBe(true);
actor.stop();
});
it("keeps a promotion separate from normal history", async () => {
const actor = createActor(
createTestChatMachine({
historyMessages: [
{
id: "history-1",
content: "Existing history",
isFromAI: true,
date: "2026-07-13",
},
],
}),
).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({
type: "ChatPromotionInjected",
promotion: {
promotionType: "voice",
lockType: "voice_message",
clientLockId: "promotion-1",
createdAt: 1,
},
});
const context = actor.getSnapshot().context;
expect(context.messages).toHaveLength(1);
expect(context.promotion?.message).toMatchObject({
id: "promotion:promotion-1",
locked: true,
lockReason: "voice_message",
});
actor.stop();
});
it("renders local history before network history sync finishes", async () => {
let resolveNetwork!: () => void;
const networkReleased = new Promise<void>((resolve) => {
resolveNetwork = resolve;
});
const localMessage: UiMessage = {
id: "local-msg",
content: "cached local message",
isFromAI: true,
date: "2026-07-02",
};
const networkMessage: UiMessage = {
id: "network-msg",
content: "fresh network message",
isFromAI: true,
date: "2026-07-02",
};
const machine = chatMachine.provide({
actors: {
loadHistory: fromCallback<ChatEvent>(({ sendBack }) => {
sendBack({
type: "ChatLocalHistoryLoaded",
output: {
messages: [localMessage],
localCount: 1,
},
});
void networkReleased.then(() => {
sendBack({
type: "ChatNetworkHistoryLoaded",
output: {
messages: [networkMessage],
localOverwritten: true,
localCount: 1,
networkCount: 1,
},
});
});
return () => undefined;
}),
},
});
const actor = createActor(machine).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ id: "local-msg", content: "cached local message" },
]);
resolveNetwork();
await waitFor(
actor,
(snapshot) => snapshot.context.messages[0]?.id === "network-msg",
);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ id: "network-msg", content: "fresh network message" },
]);
actor.stop();
});
it("switches to guest session when guest login arrives during user session", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.stop();
});
it("ignores repeated user login while an authenticated user session is active", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "keep this message" });
await waitFor(
actor,
(snapshot) => snapshot.context.messages.length === 1,
);
actor.send({ type: "ChatUserLogin", token: "another-token" });
expect(actor.getSnapshot().matches({ userSession: "ready" })).toBe(true);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "keep this message", isFromAI: false },
]);
actor.stop();
});
it("allows multiple messages to be queued without leaving ready state", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "hello" });
actor.send({ type: "ChatSendMessage", content: "still there?" });
expect(actor.getSnapshot().matches({ userSession: "ready" })).toBe(true);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "hello", isFromAI: false },
{ content: "still there?", isFromAI: false },
]);
await waitFor(
actor,
(snapshot) => snapshot.context.pendingReplyCount === 0,
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
it("applies direct HTTP actor output with a type-bound action", async () => {
const actor = createActor(createTestChatMachine()).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({
type: "ChatSendImage",
imageBase64: "data:image/png;base64,image",
});
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }) &&
snapshot.context.pendingReplyCount === 0,
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
expect(actor.getSnapshot().context.messages).toMatchObject([
{ content: "[Image]", isFromAI: false },
]);
actor.stop();
});
it("restores ready state when the direct HTTP actor fails", async () => {
const actor = createActor(
createTestChatMachine({
sendMessageHttpError: new Error("send failed"),
}),
).start();
actor.send({ type: "ChatGuestLogin" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
actor.send({
type: "ChatSendImage",
imageBase64: "data:image/png;base64,image",
});
await waitFor(actor, (snapshot) =>
snapshot.matches({ guestSession: "ready" }),
);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
it("tracks replying state by queued batch instead of user message count", async () => {
const machine = chatMachine.provide({
actors: {
loadHistory: createLoadHistoryCallback([]),
sendMessageHttp: fromPromise<
SendMessageHttpOutput,
{ content: string }
>(async () => ({
response: makeChatSendResponse(),
reply: null,
})),
httpMessageQueue: fromCallback<ChatEvent>(({ receive, sendBack }) => {
const pending: string[] = [];
receive((event) => {
if (event.type !== "ChatSendMessage") return;
pending.push(event.content);
if (pending.length !== 2) return;
sendBack({ type: "ChatQueuedSendStarted" });
sendBack({
type: "ChatQueuedHttpDone",
output: {
response: makeChatSendResponse(),
reply: null,
},
});
});
return () => undefined;
}),
unlockHistory: fromPromise<UnlockHistoryOutput>(async () => ({
unlocked: true,
reason: "ok",
shortfallCredits: 0,
messages: [],
})),
},
});
const actor = createActor(machine).start();
actor.send({ type: "ChatUserLogin", token: "token" });
await waitFor(actor, (snapshot) =>
snapshot.matches({ userSession: "ready" }),
);
actor.send({ type: "ChatSendMessage", content: "first" });
actor.send({ type: "ChatSendMessage", content: "second" });
await waitFor(
actor,
(snapshot) => snapshot.context.messages.length === 2,
);
expect(actor.getSnapshot().context.pendingReplyCount).toBe(0);
expect(actor.getSnapshot().context.isReplyingAI).toBe(false);
actor.stop();
});
createTestChatMachine,
makeUnlockPrivateResponse,
} from "./chat-machine.test-utils";
describe("chat unlock flow", () => {
it("prompts before unlocking multiple locked history messages after payment", async () => {
const actor = createActor(
createTestChatMachine({