Initial backend repository commit.

Set up project files and add .gitignore to exclude local build/runtime artifacts. Made-with: Cursor
2026-03-09 21:28:58 +08:00
commit 4d8f2ec997
102 changed files with 25022 additions and 0 deletions
--- a/internal/pkg/gorse/embedding.go
+++ b/internal/pkg/gorse/embedding.go
@@ -0,0 +1,106 @@
+package gorse
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"time"
+)
+
+// EmbeddingConfig embedding服务配置
+type EmbeddingConfig struct {
+	APIKey string
+	URL    string
+	Model  string
+}
+
+var defaultEmbeddingConfig = EmbeddingConfig{
+	APIKey: "sk-ZPN5NMPSqEaOGCPfD2LqndZ5Wwmw3DC4CQgzgKhM35fI3RpD",
+	URL:    "https://api.littlelan.cn/v1/embeddings",
+	Model:  "BAAI/bge-m3",
+}
+
+// SetEmbeddingConfig 设置embedding配置
+func SetEmbeddingConfig(apiKey, url, model string) {
+	if apiKey != "" {
+		defaultEmbeddingConfig.APIKey = apiKey
+	}
+	if url != "" {
+		defaultEmbeddingConfig.URL = url
+	}
+	if model != "" {
+		defaultEmbeddingConfig.Model = model
+	}
+}
+
+// GetEmbedding 获取文本的embedding
+func GetEmbedding(text string) ([]float64, error) {
+	type embeddingRequest struct {
+		Input string `json:"input"`
+		Model string `json:"model"`
+	}
+
+	type embeddingResponse struct {
+		Data []struct {
+			Embedding []float64 `json:"embedding"`
+		} `json:"data"`
+	}
+
+	reqBody := embeddingRequest{
+		Input: text,
+		Model: defaultEmbeddingConfig.Model,
+	}
+
+	jsonData, err := json.Marshal(reqBody)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal request: %w", err)
+	}
+
+	req, err := http.NewRequest("POST", defaultEmbeddingConfig.URL, bytes.NewReader(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+defaultEmbeddingConfig.APIKey)
+
+	client := &http.Client{Timeout: 30 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		body, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("embedding API error: status=%d, body=%s", resp.StatusCode, string(body))
+	}
+
+	var result embeddingResponse
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return nil, fmt.Errorf("failed to decode response: %w", err)
+	}
+
+	if len(result.Data) == 0 {
+		return nil, fmt.Errorf("no embedding returned")
+	}
+
+	return result.Data[0].Embedding, nil
+}
+
+// InitEmbeddingWithConfig 从应用配置初始化embedding
+func InitEmbeddingWithConfig(apiKey, url, model string) {
+	if apiKey == "" {
+		log.Println("[WARN] Gorse embedding API key not set, using default")
+	}
+	defaultEmbeddingConfig.APIKey = apiKey
+	if url != "" {
+		defaultEmbeddingConfig.URL = url
+	}
+	if model != "" {
+		defaultEmbeddingConfig.Model = model
+	}
+}