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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| package insights | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "moonlogs/internal/lib/serialize" | ||
| "net/http" | ||
| "net/url" | ||
| "strings" | ||
| ) | ||
|
|
||
| const openRouterUri = "https://openrouter.ai/api/v1/chat/completions" | ||
| const acceptKey = "Accept" | ||
| const authKey = "Authorization" | ||
| const bearerPrefix = "Bearer " | ||
|
|
||
| type OpenRouterInsightsAdapter struct { | ||
| token string | ||
| model string | ||
| } | ||
|
|
||
| func NewOpenRouterInsightsAdapter(token string, model string) *OpenRouterInsightsAdapter { | ||
| return &OpenRouterInsightsAdapter{token: token, model: model} | ||
| } | ||
|
|
||
| type OpenRouterResponse struct { | ||
| Choices []*OpenRouterChoice `json:"choices"` | ||
| } | ||
|
|
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| type OpenRouterChoice struct { | ||
| Message *OpenRouterContentMessage `json:"message"` | ||
| } | ||
|
|
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| type OpenRouterContentMessage struct { | ||
| Content string `json:"content"` | ||
| } | ||
|
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| func (a *OpenRouterInsightsAdapter) GenerateContent(ctx context.Context, prompt string, httpClient *http.Client) (string, error) { | ||
| req, err := a.buildRequest(ctx, openRouterUri, a.model, a.token, requestMethod, contentTypeKey, contentTypeValue, prompt) | ||
| if err != nil { | ||
| return "", fmt.Errorf("preparing request: %w", err) | ||
| } | ||
|
|
||
| resp, err := httpClient.Do(req) | ||
| if err != nil { | ||
| return "", fmt.Errorf("sending request: %w", err) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| b, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return "", fmt.Errorf("reading response body: %w", err) | ||
| } | ||
|
|
||
| // OpenRouter returns strange responses with a lot of new lines at the beginning of response body. | ||
| // Trim leading spaces. | ||
| respStr := string(b) | ||
| respStr = strings.TrimSpace(respStr) | ||
|
|
||
| var openRouterResp OpenRouterResponse | ||
| err = serialize.NewJSONDecoder(bytes.NewBufferString(respStr)).Decode(&openRouterResp) | ||
| if err != nil { | ||
| return "", fmt.Errorf("decoding open router response: %w", err) | ||
| } | ||
|
|
||
| if len(openRouterResp.Choices) == 0 { | ||
| return "", errors.New("empty choices") | ||
| } | ||
|
|
||
| choice := openRouterResp.Choices[0] | ||
| if choice.Message == nil { | ||
| return "", errors.New("empty choice message") | ||
| } | ||
|
|
||
| content := choice.Message.Content | ||
| if len(content) == 0 { | ||
| return "", errors.New("empty choice message content") | ||
| } | ||
|
|
||
| return content, nil | ||
| } | ||
|
|
||
| type OpenRouterRequest struct { | ||
| Model string `json:"model"` | ||
| Messages []OpenRouterMessage `json:"messages"` | ||
| } | ||
|
|
||
| type OpenRouterMessage struct { | ||
| Role string `json:"role"` | ||
| Content []OpenRouterContent `json:"content"` | ||
| } | ||
|
|
||
| type OpenRouterContent struct { | ||
| Type string `json:"type"` | ||
| Text string `json:"text"` | ||
| } | ||
|
|
||
| func (a *OpenRouterInsightsAdapter) buildRequest(ctx context.Context, baseURI, modelName, token, requestMethod, contentTypeKey, contentTypeValue, propmt string) (*http.Request, error) { | ||
| _, err := url.Parse(baseURI) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("parsing base uri: %w", err) | ||
| } | ||
|
|
||
| content := OpenRouterContent{Text: propmt, Type: "text"} | ||
| message := OpenRouterMessage{Role: "user", Content: []OpenRouterContent{content}} | ||
| payload := OpenRouterRequest{Model: modelName, Messages: []OpenRouterMessage{message}} | ||
|
|
||
| jsonData, err := serialize.JSONMarshal(payload) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("marshalling payload body: %w", err) | ||
| } | ||
|
|
||
| req, err := http.NewRequestWithContext(ctx, requestMethod, baseURI, bytes.NewBuffer(jsonData)) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("building request with timeout: %w", err) | ||
| } | ||
|
|
||
| req.Header.Set(contentTypeKey, contentTypeValue) | ||
| req.Header.Set(acceptKey, contentTypeValue) | ||
| req.Header.Set(authKey, bearerPrefix+token) | ||
|
|
||
| return req, nil | ||
| } |
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