473 lines
14 KiB
Go
473 lines
14 KiB
Go
package llm
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"strings"
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"github.com/sashabaranov/go-openai"
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)
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// Config 大模型统一配置
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type Config struct {
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Provider string // "gemini", "deepseek", "openai", "ollama", "custom"
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APIKey string // 密钥 (Ollama 本地可填任意字符或留空)
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BaseURL string // 自定义接口地址 (非必填，会自动根据 Provider 设置默认值)
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Model string // 模型名称 (非必填，会自动设置默认主力模型)
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PriceInput float64 // 用户自定义每 1M 输入 Token 美元价格 (可选，覆盖内置价格表)
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PriceOutput float64 // 用户自定义每 1M 输出 Token 美元价格 (可选，覆盖内置价格表)
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}
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// Client 统一大模型客户端
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type Client struct {
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client *openai.Client
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model string
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priceInput float64
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priceOutput float64
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}
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// NewClient 初始化客户端
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func NewClient(cfg Config) (*Client, error) {
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provider := strings.ToLower(strings.TrimSpace(cfg.Provider))
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if provider == "" {
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provider = "gemini"
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}
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apiKey := cfg.APIKey
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baseURL := cfg.BaseURL
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model := cfg.Model
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// 智能适配各大主流模型的官方地址与主力模型
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switch provider {
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case "gemini", "google":
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if baseURL == "" {
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baseURL = "https://generativelanguage.googleapis.com/v1beta/openai/"
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}
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if model == "" {
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model = "gemini-3.7-flash"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("gemini 必须配置 api_key")
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}
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case "deepseek":
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if baseURL == "" {
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baseURL = "https://api.deepseek.com/v1"
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}
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if model == "" {
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model = "deepseek-chat"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("deepseek 必须配置 api_key")
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}
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case "siliconflow", "silicon":
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if baseURL == "" {
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baseURL = "https://api.siliconflow.cn/v1"
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}
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if model == "" {
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model = "deepseek-ai/DeepSeek-V3"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("siliconflow 必须配置 api_key")
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}
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case "qwen", "dashscope", "aliyun":
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if baseURL == "" {
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baseURL = "https://dashscope.aliyuncs.com/compatible-mode/v1"
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}
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if model == "" {
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model = "qwen-plus"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("qwen/dashscope 必须配置 api_key")
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}
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case "zhipu", "glm":
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if baseURL == "" {
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baseURL = "https://open.bigmodel.cn/api/paas/v4/"
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}
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if model == "" {
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model = "glm-4-plus"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("zhipu 必须配置 api_key")
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}
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case "moonshot", "kimi":
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if baseURL == "" {
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baseURL = "https://api.moonshot.cn/v1"
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}
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if model == "" {
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model = "moonshot-v1-8k"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("moonshot/kimi 必须配置 api_key")
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}
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case "doubao", "volcengine":
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if baseURL == "" {
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baseURL = "https://ark.cn-beijing.volces.com/api/v3"
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}
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if model == "" {
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model = "doubao-pro-32k"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("doubao 必须配置 api_key (并在 model 中填写接入点 Endpoint ID)")
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}
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case "minimax":
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if baseURL == "" {
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baseURL = "https://api.minimax.chat/v1"
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}
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if model == "" {
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model = "abab6.5s-chat"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("minimax 必须配置 api_key")
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}
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case "yi", "lingyi":
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if baseURL == "" {
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baseURL = "https://api.lingyiwanwu.com/v1"
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}
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if model == "" {
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model = "yi-lightning"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("yi 必须配置 api_key")
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}
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case "groq":
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if baseURL == "" {
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baseURL = "https://api.groq.com/openai/v1"
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}
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if model == "" {
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model = "llama-3.3-70b-versatile"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("groq 必须配置 api_key")
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}
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case "grok", "xai":
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if baseURL == "" {
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baseURL = "https://api.x.ai/v1"
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}
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if model == "" {
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model = "grok-2-latest"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("grok/xai 必须配置 api_key")
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}
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case "claude", "anthropic":
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if baseURL == "" {
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baseURL = "https://openrouter.ai/api/v1"
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}
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if model == "" {
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model = "anthropic/claude-3.7-sonnet"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("claude 必须配置 api_key (默认走 OpenRouter 统一网关，或通过 base_url 指定自建代理端点)")
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}
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case "openrouter":
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if baseURL == "" {
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baseURL = "https://openrouter.ai/api/v1"
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}
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if model == "" {
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model = "anthropic/claude-3.7-sonnet"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("openrouter 必须配置 api_key")
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}
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case "ollama":
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if baseURL == "" {
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baseURL = "http://localhost:11434/v1"
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}
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if model == "" {
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model = "qwen2.5-coder"
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}
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if apiKey == "" {
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apiKey = "ollama" // 本地 ollama 传非空占位符即可
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}
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case "lmstudio", "vllm":
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if baseURL == "" {
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baseURL = "http://localhost:1234/v1"
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}
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if model == "" {
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model = "local-model"
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}
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if apiKey == "" {
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apiKey = "local"
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}
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case "openai":
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if baseURL == "" {
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baseURL = "https://api.openai.com/v1"
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}
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if model == "" {
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model = "gpt-4o-mini"
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}
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if apiKey == "" {
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return nil, fmt.Errorf("openai 必须配置 api_key")
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}
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default:
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// custom 自定义端点（只要提供了 baseURL 就能直连）
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if baseURL == "" {
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return nil, fmt.Errorf("未知 Provider: '%s'，如需自定义请提供 base_url", provider)
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}
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if model == "" {
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model = "gpt-4o"
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}
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}
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clientConfig := openai.DefaultConfig(apiKey)
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clientConfig.BaseURL = baseURL
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return &Client{
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client: openai.NewClientWithConfig(clientConfig),
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model: model,
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priceInput: cfg.PriceInput,
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priceOutput: cfg.PriceOutput,
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}, nil
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}
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// isReasoningModel 判断是否为推理或带有 Beta 限制的模型（这类模型要求 temperature 固定为 1）
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func isReasoningModel(model string) bool {
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m := strings.ToLower(model)
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return strings.HasPrefix(m, "o1") ||
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strings.HasPrefix(m, "o3") ||
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strings.HasPrefix(m, "o4") ||
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strings.Contains(m, "reasoner") ||
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strings.Contains(m, "gpt-5") ||
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strings.Contains(m, "luna") ||
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strings.Contains(m, "terra") ||
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strings.Contains(m, "sol")
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}
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// Review 一次性完整返回代码评审结果
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func (c *Client) Review(ctx context.Context, systemPrompt, diff string) (string, error) {
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temp := float32(0.2)
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if isReasoningModel(c.model) {
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temp = 1.0
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}
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req := openai.ChatCompletionRequest{
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Model: c.model,
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Messages: []openai.ChatCompletionMessage{
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{Role: openai.ChatMessageRoleSystem, Content: systemPrompt},
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{Role: openai.ChatMessageRoleUser, Content: diff},
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},
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Temperature: temp,
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}
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resp, err := c.client.CreateChatCompletion(ctx, req)
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// 针对限制了 temperature 的模型，自动降级为 1.0 重试
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if err != nil && (strings.Contains(strings.ToLower(err.Error()), "temperature") || strings.Contains(strings.ToLower(err.Error()), "beta-limitations")) {
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req.Temperature = 1.0
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resp, err = c.client.CreateChatCompletion(ctx, req)
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}
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if err != nil {
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return "", fmt.Errorf("代码评审调用失败: %w", err)
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}
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if len(resp.Choices) == 0 {
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return "", fmt.Errorf("模型未返回任何有效评审结果")
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}
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return resp.Choices[0].Message.Content, nil
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}
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// Usage 记录一次调用的 Token 消耗
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type Usage struct {
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InputTokens int
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OutputTokens int
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Model string
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Provider string
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CustomPriceInput float64 // 用户自定义输入单价（每 1M tokens 美元，>0 优先使用）
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CustomPriceOutput float64 // 用户自定义输出单价（每 1M tokens 美元，>0 优先使用）
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}
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// reviewPriceTable 各模型每 1M token 的美元单价（输入/输出）
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// 数据来源：各厂商官方定价页面，更新于 2026-08
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// 如实际价格有变动，可在 config.yaml 中通过 price_input/price_output 字段自定义覆盖
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var reviewPriceTable = map[string][2]float64{
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// ── Google Gemini ─────────────────────────────────────────────
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// 3.x 系列（当前主力）
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"gemini-3.7-flash": {0.75, 3.75}, // 推介价至 2026-12-31，之后 1.50/7.50
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"gemini-3.6-flash": {1.50, 7.50},
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"gemini-3.5-flash": {1.50, 9.00},
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"gemini-3.5-flash-lite": {0.30, 2.50},
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"gemini-3.1-flash-lite": {0.25, 1.50},
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"gemini-3.1-pro": {2.00, 12.00},
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// 2.5 系列（2026-10 退役）
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"gemini-2.5-pro": {1.25, 10.00},
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"gemini-2.5-flash": {0.30, 2.50},
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"gemini-2.5-flash-lite": {0.10, 0.40},
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// 旧款（兼容）
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"gemini-2.0-flash": {0.10, 0.40},
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// ── DeepSeek ─────────────────────────────────────────────────
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// 注意：DeepSeek 已启用峰谷定价，以下为非高峰标准价
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"deepseek-v4-flash": {0.22, 0.66},
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"deepseek-chat": {0.22, 0.66}, // V4-Flash 别名
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"deepseek-reasoner": {0.55, 2.19},
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// ── Anthropic Claude ──────────────────────────────────────────
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"claude-opus-5": {5.00, 25.00},
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"claude-sonnet-5": {2.00, 10.00}, // 推介价至 2026-08-31
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"anthropic/claude-sonnet-5": {2.00, 10.00},
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"claude-haiku-4-5": {1.00, 5.00},
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"anthropic/claude-haiku-4-5": {1.00, 5.00},
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// 旧款（兼容）
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"anthropic/claude-3.7-sonnet": {3.00, 15.00},
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"anthropic/claude-3.5-sonnet": {3.00, 15.00},
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"anthropic/claude-3.5-haiku": {0.80, 4.00},
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// ── xAI Grok ─────────────────────────────────────────────────
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"grok-4.6": {2.00, 6.00}, // >200k tokens 翻倍
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"grok-4.3": {1.25, 2.50},
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"grok-2-latest": {2.00, 6.00}, // 旧款映射
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// ── OpenAI ───────────────────────────────────────────────────
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"gpt-5.6-sol": {5.00, 30.00},
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"gpt-5.6-terra": {2.00, 12.00},
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"gpt-5.6-luna": {0.20, 1.20},
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"gpt-4o": {2.50, 10.00}, // 旧款保留
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"gpt-4o-mini": {0.15, 0.60},
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"o3-mini": {1.10, 4.40},
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// ── SiliconFlow（聚合平台，按 DeepSeek V4 主力估算）────────────
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"deepseek-ai/DeepSeek-V3": {0.22, 0.66},
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"deepseek-ai/DeepSeek-R1": {0.55, 2.19},
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// ── Qwen / 阿里通义千问 ───────────────────────────────────────
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"qwen-3.8-max": {2.00, 6.00},
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"qwen-max": {2.00, 6.00},
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"qwen-plus": {0.40, 1.20},
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"qwen-3.7-flash": {0.03, 0.13},
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// ── Kimi / Moonshot AI ────────────────────────────────────────
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"kimi-k3": {3.00, 15.00},
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"moonshot-v1-8k": {0.95, 4.00},
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"moonshot-v1-32k": {1.90, 8.00},
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"moonshot-v1-128k": {3.50, 15.00},
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// ── 智谱 GLM ─────────────────────────────────────────────────
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"glm-5.3": {1.40, 4.40},
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"glm-5.2": {1.40, 4.40},
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"glm-4-plus": {1.40, 4.40},
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// ── Doubao / 字节跳动 ─────────────────────────────────────────
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"doubao-seed-2.1-pro": {0.88, 4.42},
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"doubao-pro-32k": {0.88, 4.42},
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// ── Groq（超快推理，按量计费）────────────────────────────────
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"llama-3.3-70b-versatile": {0.59, 0.79},
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"llama-3.1-8b-instant": {0.05, 0.08},
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// ── 本地模型（完全免费）──────────────────────────────────────
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"ollama": {0, 0},
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"local-model": {0, 0},
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}
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// EstimateCost 估算费用（美元），返回 -1 表示无定价数据
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func (u *Usage) EstimateCost() float64 {
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// 1. 优先使用用户在 config.yaml 中配置的自定义单价（每 1M tokens 美元）
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if u.CustomPriceInput > 0 || u.CustomPriceOutput > 0 {
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inputCost := float64(u.InputTokens) / 1_000_000 * u.CustomPriceInput
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outputCost := float64(u.OutputTokens) / 1_000_000 * u.CustomPriceOutput
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return inputCost + outputCost
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}
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// 2. 回退使用内置官方模型价格表
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prices, ok := reviewPriceTable[u.Model]
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if !ok {
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return -1
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}
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// Ollama / 本地模型 price = 0，直接返回 0
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inputCost := float64(u.InputTokens) / 1_000_000 * prices[0]
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outputCost := float64(u.OutputTokens) / 1_000_000 * prices[1]
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return inputCost + outputCost
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}
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// ReviewStream 流式逐字返回评审结果（打字机效果），同时返回 Token 使用量
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func (c *Client) ReviewStream(ctx context.Context, systemPrompt, diff string, onChunk func(chunk string)) (*Usage, error) {
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temp := float32(0.2)
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if isReasoningModel(c.model) {
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temp = 1.0
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}
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req := openai.ChatCompletionRequest{
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Model: c.model,
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Messages: []openai.ChatCompletionMessage{
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{Role: openai.ChatMessageRoleSystem, Content: systemPrompt},
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{Role: openai.ChatMessageRoleUser, Content: diff},
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},
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Temperature: temp,
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Stream: true,
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StreamOptions: &openai.StreamOptions{
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IncludeUsage: true,
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},
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}
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stream, err := c.client.CreateChatCompletionStream(ctx, req)
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// 针对限制了 temperature 的模型，自动降级为 1.0 重试
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if err != nil && (strings.Contains(strings.ToLower(err.Error()), "temperature") || strings.Contains(strings.ToLower(err.Error()), "beta-limitations")) {
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req.Temperature = 1.0
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stream, err = c.client.CreateChatCompletionStream(ctx, req)
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}
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if err != nil {
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return nil, fmt.Errorf("创建流式请求失败: %w", err)
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}
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if stream != nil {
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defer stream.Close()
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}
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usage := &Usage{
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Model: c.model,
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CustomPriceInput: c.priceInput,
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CustomPriceOutput: c.priceOutput,
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}
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for {
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select {
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case <-ctx.Done():
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return nil, ctx.Err()
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default:
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}
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response, err := stream.Recv()
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if errors.Is(err, io.EOF) {
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break
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}
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if err != nil {
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return nil, fmt.Errorf("流式读取异常: %w", err)
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}
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// 捕获最后一个 chunk 中携带的 Usage 信息
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if response.Usage.TotalTokens > 0 {
|
||
usage.InputTokens = response.Usage.PromptTokens
|
||
usage.OutputTokens = response.Usage.CompletionTokens
|
||
}
|
||
|
||
if len(response.Choices) > 0 {
|
||
chunk := response.Choices[0].Delta.Content
|
||
if chunk != "" {
|
||
onChunk(chunk)
|
||
}
|
||
}
|
||
}
|
||
|
||
return usage, nil
|
||
}
|