refactor(chat): wire sendMessageHttpActor for HTTP message sending and update response handling
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@@ -1,13 +1,6 @@
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/**
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* Chat 状态机（XState v5）
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*
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* 原始 Dart: lib/ui/chat/bloc/chat bloc + chat state + chat event
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*
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* 本轮迁移范围：
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* ✅ HTTP 流程（init / send message / load more history）
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* ✅ WebSocket 长生命周期（**由** chat 机器内 fromCallback actor 管）
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* ✅ 上下文数据（messages / quota / 标志位）
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*
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* 设计要点：
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* - 使用 XState v5 `setup({...}).createMachine({...})` 声明式 API
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* - HTTP 操作用 `fromPromise` actor（一次性 Promise）
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@@ -27,15 +20,17 @@
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* - `guestSession`（**parent**）：游客会话 —— **不** invoke WS
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* - `initializing`：invoke chatInit（拉本地 + 初始化配额）
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* - `ready`：用户聊天 + 翻历史
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* - `sending`：invoke sendMessageHttpActor（HTTP 发送消息）
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* - `loadingMore`：invoke loadMoreHistory（翻历史）
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* - `userSession`（**parent**）：非游客会话 —— **invoke WS**（持久）
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* - `initializing`：invoke loadMoreHistory（拉服务器端首屏）
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* - `ready`：用户聊天 + 翻历史
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* - `sending`：invoke sendMessageHttpActor（HTTP fallback —— WS 真发**未** wire）
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* - `loadingMore`：invoke loadMoreHistory（翻历史）
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* WS 在 `userSession` parent 状态 invoke —— 跨 initializing/ready/loadingMore 持续
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* WS 在 `userSession` parent 状态 invoke —— 跨 initializing/ready/sending/loadingMore 持续
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*
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* **消息发送路径**（**业务事实**）：
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* - `wsConnected: true`（**仅** userSession 期间）→ **走 WS**，**不**消耗次数
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* - `wsConnected: true`（**仅** userSession 期间）→ **走 WS**，**不**消耗次数（**仅**配额规则）
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* - `wsConnected: false` → **走 HTTP**，消耗次数（**仅**游客有意义 —— 非游客 0-1=max(0,-1)=0 天然 no-op）
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* - `ChatWebSocketConnected` 事件 → `wsConnected = true`
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* - `userSession.exit` action → `wsConnected = false`（WS actor cleanup 时**也**会跑 exit）
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@@ -279,6 +274,7 @@ export const chatMachine = setup({
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ChatSendMessage: {
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actions: ["logSendMessageReceived", "appendUserMessage"],
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guard: ({ event }) => event.content.trim().length > 0,
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target: "sending",
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},
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ChatSendImage: {
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actions: ["logSendImageReceived", "appendUserImage"],
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@@ -302,6 +298,44 @@ export const chatMachine = setup({
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ChatQuotaExceeded: { actions: "incrementQuotaExceeded" },
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},
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},
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sending: {
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entry: ({ event }) =>
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console.log("[chat-machine] → guestSession.sending", {
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contentLength: event.type === "ChatSendMessage" ? event.content.length : 0,
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contentPreview: event.type === "ChatSendMessage" ? event.content.slice(0, 50) : "",
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}),
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invoke: {
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src: "sendMessageHttp",
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input: ({ event }) => ({
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content: event.type === "ChatSendMessage" ? event.content : "",
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}),
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onDone: {
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target: "ready",
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actions: [
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assign(({ context, event }) => ({
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messages: [...context.messages, event.output.reply],
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isReplyingAI: false,
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})),
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({ context, event }) =>
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console.log("[chat-machine] guestSession.sending.onDone", {
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newReplyContentLength: event.output.reply.content.length,
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totalMessagesCount: context.messages.length + 1,
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isReplyingAI: false,
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}),
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],
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},
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onError: {
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target: "ready",
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actions: [
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assign({ isReplyingAI: false }),
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({ event }) =>
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console.error("[chat-machine] guestSession.sending.onError", {
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error: event.error instanceof Error ? event.error.message : String(event.error),
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}),
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],
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},
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},
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},
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loadingMore: {
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entry: ({ context }) =>
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console.log("[chat-machine] → guestSession.loadingMore", { offset: context.historyOffset }),
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@@ -357,7 +391,7 @@ export const chatMachine = setup({
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onDone: {
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target: "ready",
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actions: [
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assign(({ event }) => ({
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assign(({ context, event }) => ({
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messages: event.output.messages,
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isLoadingMore: false,
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hasMore: event.output.hasMore,
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@@ -388,6 +422,7 @@ export const chatMachine = setup({
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ChatSendMessage: {
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actions: ["logSendMessageReceived", "appendUserMessage"],
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guard: ({ event }) => event.content.trim().length > 0,
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target: "sending",
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},
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ChatSendImage: {
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actions: ["logSendImageReceived", "appendUserImage"],
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@@ -411,6 +446,45 @@ export const chatMachine = setup({
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ChatQuotaExceeded: { actions: "incrementQuotaExceeded" },
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},
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},
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sending: {
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entry: ({ event }) =>
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console.log("[chat-machine] → userSession.sending", {
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contentLength: event.type === "ChatSendMessage" ? event.content.length : 0,
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contentPreview: event.type === "ChatSendMessage" ? event.content.slice(0, 50) : "",
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wsConnected: true,
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}),
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invoke: {
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src: "sendMessageHttp",
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input: ({ event }) => ({
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content: event.type === "ChatSendMessage" ? event.content : "",
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}),
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onDone: {
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target: "ready",
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actions: [
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assign(({ context, event }) => ({
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messages: [...context.messages, event.output.reply],
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isReplyingAI: false,
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})),
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({ context, event }) =>
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console.log("[chat-machine] userSession.sending.onDone", {
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newReplyContentLength: event.output.reply.content.length,
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totalMessagesCount: context.messages.length + 1,
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isReplyingAI: false,
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}),
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],
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},
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onError: {
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target: "ready",
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actions: [
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assign({ isReplyingAI: false }),
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({ event }) =>
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console.error("[chat-machine] userSession.sending.onError", {
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error: event.error instanceof Error ? event.error.message : String(event.error),
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}),
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],
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},
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},
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},
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loadingMore: {
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entry: ({ context }) =>
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console.log("[chat-machine] → userSession.loadingMore", { offset: context.historyOffset }),
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