chore: scaffold Phase 0 - Tauri2 + Rust + React + llama.cpp integration

ui/src/api.ts

@@ -0,0 +1,144 @@
+import { invoke } from "@tauri-apps/api/core";
+import { listen } from "@tauri-apps/api/event";
+
+export interface AppInfo {
+  version: string;
+  platform: string;
+  models_dir: string;
+  engine_bin: string | null;
+  engine_exists: boolean;
+  db_path: string;
+}
+
+export interface ModelInfo {
+  id: string;
+  repo_id: string;
+  source: string;
+  file_name: string;
+  file_path: string;
+  file_size: number;
+  quant: string | null;
+  family: string | null;
+  status: string;
+  sha256: string | null;
+  meta: Record<string, unknown>;
+  created_at: string;
+}
+
+export interface EngineStatus {
+  running: boolean;
+  port: number | null;
+  pid: number | null;
+  model: string | null;
+  backend: string | null;
+  ctx_size: number | null;
+  ngl: number | null;
+  uptime_secs: number | null;
+}
+
+export interface Conversation {
+  id: string;
+  title: string;
+  model_id: string | null;
+  system_prompt: string | null;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface Message {
+  id: string;
+  conversation_id: string;
+  role: string;
+  content: string;
+  tokens_in: number | null;
+  tokens_out: number | null;
+  created_at: string;
+}
+
+export interface ChatParams {
+  temperature: number;
+  top_p: number;
+  max_tokens: number;
+  ctx_size: number;
+  ngl: number;
+}
+
+export interface ChatSendPayload {
+  conversation_id: string;
+  model_id: string;
+  content: string;
+  params: ChatParams;
+}
+
+export interface ChatTokenEvent {
+  conversation_id: string;
+  text: string;
+}
+
+export interface ChatDoneEvent {
+  conversation_id: string;
+  message_id: string;
+  content: string;
+  tokens_in: number | null;
+  tokens_out: number | null;
+  elapsed_ms: number;
+}
+
+export interface ChatErrorEvent {
+  conversation_id: string;
+  message: string;
+}
+
+export interface DownloadProgressEvent {
+  id: string;
+  url: string;
+  file_name: string;
+  downloaded: number;
+  total: number | null;
+  percent: number | null;
+  speed_bps: number;
+  status: string;
+}
+
+export interface ServerStatus {
+  running: boolean;
+  port: number | null;
+}
+
+export const api = {
+  appInfo: () => invoke<AppInfo>("app_info"),
+  listModels: () => invoke<ModelInfo[]>("list_models"),
+  importModel: (path: string) => invoke<ModelInfo>("import_model", { path }),
+  removeModel: (id: string) => invoke<void>("remove_model", { id }),
+  settingsGet: () => invoke<Record<string, string>>("settings_get"),
+  settingsSet: (key: string, value: string) =>
+    invoke<void>("settings_set", { key, value }),
+  listConversations: () => invoke<Conversation[]>("list_conversations"),
+  createConversation: (title: string) =>
+    invoke<Conversation>("create_conversation", { title }),
+  deleteConversation: (id: string) =>
+    invoke<void>("delete_conversation", { id }),
+  getMessages: (conversationId: string) =>
+    invoke<Message[]>("get_messages", { conversationId }),
+  engineStart: (modelId: string, params: ChatParams) =>
+    invoke<EngineStatus>("engine_start", { modelId, params }),
+  engineStop: () => invoke<void>("engine_stop"),
+  engineStatus: () => invoke<EngineStatus>("engine_status"),
+  chatSend: (payload: ChatSendPayload) => invoke<string>("chat_send", { payload }),
+  downloadEnqueue: (url: string, fileName: string, sha256?: string) =>
+    invoke<string>("download_enqueue", {
+      url,
+      fileName,
+      sha256: sha256 ?? null,
+    }),
+  serverStart: (port: number, apiKey: string) =>
+    invoke<ServerStatus>("server_start", { port, apiKey }),
+  serverStop: () => invoke<void>("server_stop"),
+  serverStatus: () => invoke<ServerStatus>("server_status"),
+  openPath: (path: string) => invoke<void>("open_path", { path }),
+};
+
+export function onEvent<T>(channel: string, handler: (payload: T) => void) {
+  return listen<T>(channel, (event) => handler(event.payload));
+}
+