feat: MetonaAI Desktop 初始项目

- Electron + React + TypeScript 架构
- 三栏布局: Sidebar | ChatPanel | DetailPanel
- 9 个内置工具 (文件系统/网络/记忆/命令)
- SQLite 持久化 (better-sqlite3)
- MUI 暗色/亮色主题系统
- Agent Loop ReAct 状态机引擎
- DeepSeek / Agnes AI / Ollama Provider 适配器
- MCP 协议集成
- 系统托盘 + 全局快捷键
- Tailwind CSS v4 + Tailwind Merge
- 修复: Sidebar 缺失 TextField 导入导致黑屏
This commit is contained in:
thzxx
2026-06-27 21:33:27 +08:00
commit 1d185db6b3
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/**
* Agnes AI Provider Adapter
*
* OpenAI 兼容 API,免费使用。
* 支持 Tool Calling、Thinking 模式、512K 上下文、多模态(图片 base64)。
*
* 差异于 DeepSeek
* - Thinking 模式使用 chat_template_kwargs(非 thinking 字段)
* - 图片使用 base64 格式(与 Ollama 一致,通过 images 字段传递)
* - 512K 上下文,65.5K 最大输出
*
* @see apis/agnes-ai-api-docs-20260625.html
*/
import { DeepSeekAdapter } from './deepseek.adapter';
import type { MetonaRequest } from '../types';
export class AgnesAdapter extends DeepSeekAdapter {
override readonly provider: string = 'agnes';
readonly supportedModels = ['agnes-2.0-flash'];
readonly supportsToolCalling = true;
readonly supportsThinking = true;
/**
* 覆盖原生请求构建
*
* 差异:
* 1. Thinking 模式使用 chat_template_kwargs
* 2. 图片使用 OpenAI 多模态 content 数组格式
*/
protected override toNativeRequest(request: MetonaRequest): Record<string, unknown> {
const base = super.toNativeRequest(request) as Record<string, unknown>;
// Agnes Thinking 模式:使用 chat_template_kwargs
if (request.params?.thinkingEnabled) {
delete base.thinking;
delete base.reasoning_effort;
base.chat_template_kwargs = { enable_thinking: true };
}
// Agnes 默认 max_tokens 更大
if (!request.params.maxTokens) {
base.max_tokens = 65536;
}
// 图片处理:将 images 转为 OpenAI 多模态 content 数组格式
const messages = base.messages as Array<Record<string, unknown>>;
for (let i = 0; i < messages.length; i++) {
const msg = messages[i];
// 找到对应的原始消息(跳过 system 消息)
const origMsg = request.messages.filter((m) => m.role !== 'system')[i];
if (!origMsg?.images || origMsg.images.length === 0) continue;
// 将 content 转为数组格式:[{type: "text", text: ...}, {type: "image_url", ...}]
const contentParts: Array<Record<string, unknown>> = [];
if (msg.content && typeof msg.content === 'string') {
contentParts.push({ type: 'text', text: msg.content });
}
for (const img of origMsg.images) {
contentParts.push({
type: 'image_url',
image_url: { url: img.url, detail: img.detail ?? 'auto' },
});
}
msg.content = contentParts;
}
return base;
}
}
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/**
* Provider Adapter — 基类
*
* 所有 Provider 适配器共享的基类逻辑:
* - 请求超时处理
* - 错误映射到 MetonaError
* - 流式事件标准化
*/
import type {
IMetonaProviderAdapter,
AdapterConfig,
MetonaRequest,
MetonaResponse,
MetonaStreamEvent,
MetonaError,
} from '../types';
import { MetonaErrorCode } from '../types';
export abstract class BaseAdapter implements IMetonaProviderAdapter {
abstract readonly provider: string;
abstract readonly supportedModels: string[];
abstract readonly supportsToolCalling: boolean;
abstract readonly supportsThinking: boolean;
constructor(protected config: AdapterConfig) {}
abstract chat(request: MetonaRequest): Promise<MetonaResponse>;
abstract chatStream(request: MetonaRequest): AsyncIterable<MetonaStreamEvent>;
async healthCheck(): Promise<boolean> {
try {
await this.listModels?.();
return true;
} catch {
return false;
}
}
async listModels(): Promise<string[]> {
return this.supportedModels;
}
/**
* 将原生错误映射为 MetonaError
*/
protected mapError(error: unknown): MetonaError {
if (error instanceof Error) {
const msg = error.message.toLowerCase();
if (msg.includes('timeout') || msg.includes('ETIMEDOUT')) {
return {
code: MetonaErrorCode.NETWORK_TIMEOUT,
message: error.message,
provider: this.provider,
retryable: true,
retryAfterMs: 3000,
};
}
if (msg.includes('401') || msg.includes('unauthorized')) {
return {
code: MetonaErrorCode.AUTH_INVALID,
message: 'API key 无效或已过期',
provider: this.provider,
retryable: false,
};
}
if (msg.includes('429') || msg.includes('rate limit')) {
return {
code: MetonaErrorCode.RATE_LIMITED,
message: '请求过于频繁,请稍后重试',
provider: this.provider,
retryable: true,
retryAfterMs: 5000,
};
}
}
return {
code: MetonaErrorCode.UNKNOWN,
message: error instanceof Error ? error.message : 'Unknown error',
provider: this.provider,
retryable: false,
};
}
}
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/**
* DeepSeek Provider Adapter
*
* 基于 OpenAI 兼容 API 的 DeepSeek 适配器。
* 支持 Tool Calling、Thinking 模式、流式输出、JSON 结构化输出。
*
* 完整实现 DeepSeek API 文档中所有参数:
* - model, messages, thinking, reasoning_effort
* - stream, stream_options
* - tools, tool_choice
* - response_format (JSON)
* - stop, max_tokens, temperature, top_p
* - logprobs, top_logprobs
* - prompt_cache_hit/miss_tokens, reasoning_tokens
* - GET /models, GET /user/balance
*
* @see apis/deepseek-api-docs-20260518.html
*/
import { BaseAdapter } from './base-adapter';
import { nanoid } from 'nanoid';
import type { MetonaRequest, MetonaResponse, MetonaStreamEvent } from '../types';
import { MetonaFinishReason, MetonaStreamEventType, MetonaErrorCode } from '../types';
export class DeepSeekAdapter extends BaseAdapter {
override readonly provider: string = 'deepseek';
readonly supportedModels = ['deepseek-v4-pro', 'deepseek-v4-flash'];
readonly supportsToolCalling = true;
readonly supportsThinking = true;
async chat(request: MetonaRequest): Promise<MetonaResponse> {
const nativeRequest = this.toNativeRequest(request);
const response = await fetch(`${this.config.baseURL}/chat/completions`, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${this.config.apiKey}`,
...this.config.headers,
},
body: JSON.stringify(nativeRequest),
signal: AbortSignal.timeout(this.config.timeoutMs ?? 120_000),
});
if (!response.ok) {
const errorBody = await response.text().catch(() => '');
throw new Error(`DeepSeek API error: ${response.status} ${response.statusText} - ${errorBody}`);
}
const data = await response.json();
return this.toMetonaResponse(data, request.meta.requestId);
}
async *chatStream(request: MetonaRequest): AsyncIterable<MetonaStreamEvent> {
const nativeRequest = { ...this.toNativeRequest(request), stream: true, stream_options: { include_usage: true } };
const response = await fetch(`${this.config.baseURL}/chat/completions`, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${this.config.apiKey}`,
...this.config.headers,
},
body: JSON.stringify(nativeRequest),
});
if (!response.ok || !response.body) {
throw new Error(`DeepSeek stream error: ${response.status}`);
}
const reader = response.body.getReader();
const decoder = new TextDecoder();
let seq = 0;
let buffer = '';
// 工具调用缓冲区:index → { name, argsBuffer }
const toolCallsBuffer = new Map<number, { name: string; argsBuffer: string }>();
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split('\n');
buffer = lines.pop() ?? '';
for (const line of lines) {
const trimmed = line.trim();
if (!trimmed || !trimmed.startsWith('data: ')) continue;
const data = trimmed.slice(6);
if (data === '[DONE]') {
// 流结束前,将缓冲区中的工具调用转为 TOOL_CALL_COMPLETE
for (const [index, buf] of toolCallsBuffer) {
try {
yield {
type: MetonaStreamEventType.TOOL_CALL_COMPLETE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
toolCall: {
id: `tc_${nanoid(8)}`,
name: buf.name,
args: buf.argsBuffer ? JSON.parse(buf.argsBuffer) : {},
iteration: request.meta.iteration,
timestamp: Date.now(),
},
};
} catch {
// JSON 解析失败,跳过
}
}
toolCallsBuffer.clear();
yield {
type: MetonaStreamEventType.DONE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
};
return;
}
try {
const chunk = JSON.parse(data);
const delta = chunk.choices?.[0]?.delta;
// 文本内容增量
if (delta?.content) {
yield {
type: MetonaStreamEventType.TEXT_DELTA,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
delta: delta.content,
};
}
// 推理内容增量(Thinking 模式)
if (delta?.reasoning_content) {
yield {
type: MetonaStreamEventType.REASONING_DELTA,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
delta: delta.reasoning_content,
};
}
// 工具调用增量 — 缓冲拼接
if (delta?.tool_calls) {
for (const tc of delta.tool_calls) {
const idx = tc.index ?? 0;
if (!toolCallsBuffer.has(idx)) {
toolCallsBuffer.set(idx, { name: tc.function?.name ?? '', argsBuffer: '' });
}
const buf = toolCallsBuffer.get(idx)!;
if (tc.function?.name) buf.name = tc.function.name;
if (tc.function?.arguments) buf.argsBuffer += tc.function.arguments;
yield {
type: MetonaStreamEventType.TOOL_CALL_DELTA,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
toolCallDelta: {
index: idx,
name: tc.function?.name,
argsDelta: tc.function?.arguments,
},
};
}
}
// 流结束时的 usage 信息
if (chunk.usage) {
yield {
type: MetonaStreamEventType.USAGE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
usage: {
inputTokens: chunk.usage.prompt_tokens ?? 0,
outputTokens: chunk.usage.completion_tokens ?? 0,
totalTokens: chunk.usage.total_tokens ?? 0,
reasoningTokens: chunk.usage.completion_tokens_details?.reasoning_tokens,
cacheHitTokens: chunk.usage.prompt_cache_hit_tokens,
cacheMissTokens: chunk.usage.prompt_cache_miss_tokens,
},
};
}
} catch {
// 跳过解析失败的行
}
}
}
}
/**
* 列出可用模型
*/
async listModels(): Promise<string[]> {
try {
const response = await fetch(`${this.config.baseURL}/models`, {
headers: { Authorization: `Bearer ${this.config.apiKey}` },
signal: AbortSignal.timeout(10_000),
});
if (!response.ok) return this.supportedModels;
const data = await response.json() as { data?: Array<{ id: string }> };
return data.data?.map((m) => m.id) ?? this.supportedModels;
} catch {
return this.supportedModels;
}
}
/**
* 查询账户余额
*/
async getBalance(): Promise<{ currency: string; totalBalance: string; grantedBalance: string; toppedUpBalance: string } | null> {
try {
const response = await fetch(`${this.config.baseURL}/user/balance`, {
headers: { Authorization: `Bearer ${this.config.apiKey}` },
signal: AbortSignal.timeout(10_000),
});
if (!response.ok) return null;
const data = await response.json() as { currency?: string; total_balance?: string; granted_balance?: string; topped_up_balance?: string };
return {
currency: data.currency ?? 'CNY',
totalBalance: data.total_balance ?? '0',
grantedBalance: data.granted_balance ?? '0',
toppedUpBalance: data.topped_up_balance ?? '0',
};
} catch {
return null;
}
}
// ========== 私有转换方法 ==========
/**
* 将 MetonaRequest 转换为 OpenAI 兼容的原生请求格式
*/
protected toNativeRequest(request: MetonaRequest): Record<string, unknown> {
const messages = [
{
role: 'system',
content: [
request.systemPrompt.roleDefinition,
request.systemPrompt.outputConstraints,
request.systemPrompt.safetyGuidelines,
request.systemPrompt.dynamicReminders,
].filter(Boolean).join('\n\n'),
},
...request.messages.filter((m) => m.role !== 'system').map((m) => {
const msg: Record<string, unknown> = { role: m.role, content: m.content };
if (m.role === 'assistant' && m.toolCalls?.length) {
msg.tool_calls = m.toolCalls.map((tc) => ({
id: tc.id,
type: 'function',
function: { name: tc.name, arguments: JSON.stringify(tc.args) },
}));
// 工具调用轮次的 reasoning_content 必须携带回上下文
if (m.reasoningContent) {
msg.reasoning_content = m.reasoningContent;
}
}
if (m.role === 'tool' && m.toolResult) {
msg.tool_call_id = m.toolResult.toolCallId;
msg.content = typeof m.toolResult.result === 'string'
? m.toolResult.result
: JSON.stringify(m.toolResult.result);
}
return msg;
}),
];
const body: Record<string, unknown> = {
model: this.config.defaultModel,
messages,
temperature: request.params.temperature ?? 0,
max_tokens: request.params.maxTokens,
stream: request.params.stream ?? false,
};
// Tool Calling
if (request.tools?.length) {
body.tools = request.tools.map((t) => ({
type: 'function',
function: {
name: t.name,
description: t.description,
parameters: t.parameters,
},
}));
}
// Thinking 模式
if (request.params.thinkingEnabled) {
body.thinking = { type: 'enabled' };
// reasoning_effort 映射
const effortMap: Record<string, string> = { low: 'high', medium: 'high', high: 'high', max: 'max' };
body.reasoning_effort = effortMap[request.params.thinkingEffort ?? 'high'] ?? 'high';
}
// 停止序列
if (request.params.stopSequences?.length) {
body.stop = request.params.stopSequences;
}
// 安全约束
if (request.constraints?.allowedTools?.length) {
body.tool_choice = 'auto';
}
return body;
}
private toMetonaResponse(data: Record<string, unknown>, requestId: string): MetonaResponse {
const choice = (data.choices as Array<Record<string, unknown>>)?.[0];
const message = choice?.message as Record<string, unknown> | undefined;
const usage = data.usage as Record<string, unknown> | undefined;
const toolCalls = message?.tool_calls as Array<Record<string, unknown>> | undefined;
return {
meta: {
requestId,
provider: this.provider,
model: (data.model as string) ?? this.config.defaultModel,
latencyMs: 0,
timestamp: Date.now(),
},
content: (message?.content as string) ?? '',
reasoningContent: message?.reasoning_content as string | undefined,
toolCalls: toolCalls?.map((tc) => {
const fn = tc.function as Record<string, unknown>;
return {
id: tc.id as string,
name: fn.name as string,
args: JSON.parse(fn.arguments as string),
iteration: 0,
timestamp: Date.now(),
};
}),
usage: {
inputTokens: (usage?.prompt_tokens as number) ?? 0,
outputTokens: (usage?.completion_tokens as number) ?? 0,
totalTokens: (usage?.total_tokens as number) ?? 0,
reasoningTokens: (usage?.completion_tokens_details as Record<string, unknown>)?.reasoning_tokens as number | undefined,
cacheHitTokens: usage?.prompt_cache_hit_tokens as number | undefined,
cacheMissTokens: usage?.prompt_cache_miss_tokens as number | undefined,
},
finishReason: this.mapFinishReason(choice?.finish_reason as string),
};
}
private mapFinishReason(reason: string): MetonaFinishReason {
switch (reason) {
case 'stop': return MetonaFinishReason.STOP;
case 'length': return MetonaFinishReason.LENGTH;
case 'tool_calls': return MetonaFinishReason.TOOL_CALLS;
case 'content_filter': return MetonaFinishReason.CONTENT_FILTER;
default: return MetonaFinishReason.STOP;
}
}
}
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export { BaseAdapter } from './base-adapter';
export { DeepSeekAdapter } from './deepseek.adapter';
export { AgnesAdapter } from './agnes-ai.adapter';
export { OllamaAdapter } from './ollama.adapter';
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/**
* Ollama Provider Adapter
*
* 本地推理引擎,支持 Tool Calling、Thinking 模式、NDJSON 流式。
* 无需 API Key,连接本地 http://localhost:11434。
*
* 完整实现 Ollama API 文档中所有端点和参数:
* - POST /api/chat (对话)
* - POST /api/generate (补全)
* - POST /api/embed (嵌入)
* - GET /api/tags (列出模型)
* - POST /api/show (模型详情)
* - POST /api/pull (下载模型)
* - GET /api/ps (运行中模型)
* - GET /api/version (版本)
* - think 参数(Thinking 模式)
* - options 参数(temperature/top_k/top_p/stop/num_ctx/num_predict
* - format 参数(structured output
* - images 参数(多模态)
* - tool_calls 流式处理
*
* @see apis/ollama-api-docs-20260518.html
*/
import { BaseAdapter } from './base-adapter';
import type { MetonaRequest, MetonaResponse, MetonaStreamEvent } from '../types';
import { MetonaFinishReason, MetonaStreamEventType } from '../types';
export class OllamaAdapter extends BaseAdapter {
override readonly provider: string = 'ollama';
readonly supportedModels = ['qwen3:latest', 'gemma3:latest', 'deepseek-r1:latest'];
readonly supportsToolCalling = true;
readonly supportsThinking = true;
private baseURL: string;
constructor(config: ConstructorParameters<typeof BaseAdapter>[0]) {
super(config);
this.baseURL = config.baseURL || 'http://localhost:11434';
}
// ===== POST /api/chat =====
async chat(request: MetonaRequest): Promise<MetonaResponse> {
const nativeRequest = this.toNativeRequest(request);
const response = await fetch(`${this.baseURL}/api/chat`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ ...nativeRequest, stream: false }),
signal: AbortSignal.timeout(this.config.timeoutMs ?? 300_000),
});
if (!response.ok) {
throw new Error(`Ollama API error: ${response.status}`);
}
const data = await response.json();
return this.toMetonaResponse(data, request.meta.requestId);
}
async *chatStream(request: MetonaRequest): AsyncIterable<MetonaStreamEvent> {
const nativeRequest = this.toNativeRequest(request);
const response = await fetch(`${this.baseURL}/api/chat`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ ...nativeRequest, stream: true }),
});
if (!response.ok || !response.body) {
throw new Error(`Ollama stream error: ${response.status}`);
}
const reader = response.body.getReader();
const decoder = new TextDecoder();
let seq = 0;
let buffer = '';
// 工具调用缓冲区
const toolCallsBuffer = new Map<number, { name: string; argsBuffer: string }>();
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split('\n');
buffer = lines.pop() ?? '';
for (const line of lines) {
const trimmed = line.trim();
if (!trimmed) continue;
try {
const chunk = JSON.parse(trimmed);
// 思考内容
if (chunk.message?.thinking) {
yield {
type: MetonaStreamEventType.REASONING_DELTA,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
delta: chunk.message.thinking,
};
}
// 文本内容
if (chunk.message?.content) {
yield {
type: MetonaStreamEventType.TEXT_DELTA,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
delta: chunk.message.content,
};
}
// 工具调用(Ollama 在最后一个 chunk 中整块返回)
if (chunk.message?.tool_calls) {
for (const tc of chunk.message.tool_calls) {
yield {
type: MetonaStreamEventType.TOOL_CALL_COMPLETE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
toolCall: {
id: `tc_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`,
name: tc.function?.name ?? '',
args: tc.function?.arguments ?? {},
iteration: request.meta.iteration,
timestamp: Date.now(),
},
};
}
}
// 流结束
if (chunk.done) {
// 发送 usage 信息
yield {
type: MetonaStreamEventType.USAGE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
usage: {
inputTokens: chunk.prompt_eval_count ?? 0,
outputTokens: chunk.eval_count ?? 0,
totalTokens: (chunk.prompt_eval_count ?? 0) + (chunk.eval_count ?? 0),
},
};
yield {
type: MetonaStreamEventType.DONE,
requestId: request.meta.requestId,
sessionId: request.meta.sessionId,
iteration: request.meta.iteration,
seq: seq++,
timestamp: Date.now(),
};
return;
}
} catch {
// 跳过解析失败的行
}
}
}
}
// ===== POST /api/generate =====
async generate(params: {
model: string;
prompt: string;
suffix?: string;
system?: string;
stream?: boolean;
think?: boolean | string;
format?: string | object;
images?: string[];
options?: Record<string, unknown>;
}): Promise<{ response: string; thinking?: string; done: boolean; totalDuration: number; evalCount: number }> {
const response = await fetch(`${this.baseURL}/api/generate`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ ...params, stream: false }),
signal: AbortSignal.timeout(300_000),
});
if (!response.ok) throw new Error(`Ollama generate error: ${response.status}`);
const data = await response.json() as {
response?: string; thinking?: string; done?: boolean;
total_duration?: number; eval_count?: number;
};
return {
response: data.response ?? '',
thinking: data.thinking,
done: data.done ?? true,
totalDuration: data.total_duration ?? 0,
evalCount: data.eval_count ?? 0,
};
}
// ===== POST /api/embed =====
async embed(params: {
model: string;
input: string | string[];
dimensions?: number;
}): Promise<{ embeddings: number[][]; totalDuration: number }> {
const response = await fetch(`${this.baseURL}/api/embed`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(params),
signal: AbortSignal.timeout(60_000),
});
if (!response.ok) throw new Error(`Ollama embed error: ${response.status}`);
const data = await response.json() as { embeddings?: number[][]; total_duration?: number };
return {
embeddings: data.embeddings ?? [],
totalDuration: data.total_duration ?? 0,
};
}
// ===== GET /api/tags =====
async listModels(): Promise<string[]> {
try {
const response = await fetch(`${this.baseURL}/api/tags`, {
signal: AbortSignal.timeout(10_000),
});
if (!response.ok) return this.supportedModels;
const data = await response.json() as { models?: Array<{ name: string }> };
return data.models?.map((m) => m.name) ?? this.supportedModels;
} catch {
return this.supportedModels;
}
}
// ===== POST /api/show =====
async showModel(model: string): Promise<{ parameters: string; template: string; capabilities: string[] } | null> {
try {
const response = await fetch(`${this.baseURL}/api/show`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ model }),
signal: AbortSignal.timeout(10_000),
});
if (!response.ok) return null;
const data = await response.json() as { parameters?: string; template?: string; capabilities?: string[] };
return {
parameters: data.parameters ?? '',
template: data.template ?? '',
capabilities: data.capabilities ?? [],
};
} catch {
return null;
}
}
// ===== POST /api/pull =====
async pullModel(model: string, onProgress?: (progress: { status: string; completed?: number; total?: number }) => void): Promise<void> {
const response = await fetch(`${this.baseURL}/api/pull`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ model, stream: true }),
});
if (!response.ok || !response.body) throw new Error(`Ollama pull error: ${response.status}`);
const reader = response.body.getReader();
const decoder = new TextDecoder();
let buffer = '';
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split('\n');
buffer = lines.pop() ?? '';
for (const line of lines) {
if (!line.trim()) continue;
try {
const chunk = JSON.parse(line);
onProgress?.({ status: chunk.status, completed: chunk.completed, total: chunk.total });
} catch {}
}
}
}
// ===== GET /api/ps =====
async listRunning(): Promise<Array<{ name: string; size: number; sizeVram: number; contextLength: number }>> {
try {
const response = await fetch(`${this.baseURL}/api/ps`, {
signal: AbortSignal.timeout(10_000),
});
if (!response.ok) return [];
const data = await response.json() as { models?: Array<{ name: string; size?: number; size_vram?: number; context_length?: number }> };
return (data.models ?? []).map((m) => ({
name: m.name ?? '',
size: m.size ?? 0,
sizeVram: m.size_vram ?? 0,
contextLength: m.context_length ?? 0,
}));
} catch {
return [];
}
}
// ===== GET /api/version =====
async getVersion(): Promise<string> {
try {
const response = await fetch(`${this.baseURL}/api/version`, {
signal: AbortSignal.timeout(5_000),
});
if (!response.ok) return 'unknown';
const data = await response.json() as { version?: string };
return data.version ?? 'unknown';
} catch {
return 'unknown';
}
}
// ========== 私有转换方法 ==========
private toNativeRequest(request: MetonaRequest): Record<string, unknown> {
const messages = [
{
role: 'system',
content: [
request.systemPrompt.roleDefinition,
request.systemPrompt.outputConstraints,
request.systemPrompt.safetyGuidelines,
].filter(Boolean).join('\n\n'),
},
...request.messages.filter((m) => m.role !== 'system').map((m) => {
const msg: Record<string, unknown> = { role: m.role, content: m.content };
// Ollama 图片使用 images 字段(纯 base64 数组,不含 data: 前缀)
if (m.images?.length) {
msg.images = m.images.map((img) => {
const url = img.url;
// data:image/png;base64,iVBOR... → iVBOR...
if (url.startsWith('data:')) {
const base64Part = url.split(',')[1];
return base64Part ?? url;
}
return url;
});
}
// 工具结果
if (m.role === 'tool' && m.toolResult) {
msg.tool_call_id = m.toolResult.toolCallId;
msg.content = typeof m.toolResult.result === 'string'
? m.toolResult.result
: JSON.stringify(m.toolResult.result);
}
// assistant 工具调用
if (m.role === 'assistant' && m.toolCalls?.length) {
msg.tool_calls = m.toolCalls.map((tc) => ({
function: { name: tc.name, arguments: tc.args },
}));
}
return msg;
}),
];
const body: Record<string, unknown> = {
model: this.config.defaultModel,
messages,
options: {
temperature: request.params.temperature ?? 0,
num_predict: request.params.maxTokens,
top_p: request.params.topP,
stop: request.params.stopSequences,
},
};
// Tool Calling
if (request.tools?.length) {
body.tools = request.tools.map((t) => ({
type: 'function',
function: {
name: t.name,
description: t.description,
parameters: t.parameters,
},
}));
}
// Thinking 模式
if (request.params.thinkingEnabled) {
const effortMap: Record<string, string | boolean> = { low: 'low', medium: 'medium', high: 'high', max: true };
body.think = effortMap[request.params.thinkingEffort ?? 'high'] ?? true;
}
return body;
}
private toMetonaResponse(data: Record<string, unknown>, requestId: string): MetonaResponse {
const message = data.message as Record<string, unknown> | undefined;
const toolCalls = message?.tool_calls as Array<Record<string, unknown>> | undefined;
return {
meta: {
requestId,
provider: this.provider,
model: (data.model as string) ?? this.config.defaultModel,
latencyMs: 0,
timestamp: Date.now(),
perfStats: {
loadDurationMs: data.load_duration ? (data.load_duration as number) / 1e6 : undefined,
promptEvalDurationMs: data.prompt_eval_duration ? (data.prompt_eval_duration as number) / 1e6 : undefined,
evalDurationMs: data.eval_duration ? (data.eval_duration as number) / 1e6 : undefined,
tokensPerSecond: data.eval_count && data.eval_duration
? ((data.eval_count as number) / ((data.eval_duration as number) / 1e9))
: undefined,
},
},
content: (message?.content as string) ?? '',
reasoningContent: message?.thinking as string | undefined,
toolCalls: toolCalls?.map((tc, i) => {
const fn = tc.function as Record<string, unknown>;
return {
id: `tc_${Date.now()}_${i}`,
name: (fn?.name as string) ?? '',
args: (fn?.arguments as Record<string, unknown>) ?? {},
iteration: 0,
timestamp: Date.now(),
};
}),
usage: {
inputTokens: (data.prompt_eval_count as number) ?? 0,
outputTokens: (data.eval_count as number) ?? 0,
totalTokens: ((data.prompt_eval_count as number) ?? 0) + ((data.eval_count as number) ?? 0),
},
finishReason: data.done ? MetonaFinishReason.STOP : MetonaFinishReason.LENGTH,
};
}
}