feat: implement 6 tools (search, create, summary, tags, related)

internal/tools/keyword_search.go

@@ -0,0 +1,45 @@
+package tools
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"eino-test/internal/rag"
+
+	"github.com/cloudwego/eino/components/tool"
+	"github.com/cloudwego/eino/components/tool/utils"
+)
+
+type KeywordSearchInput struct {
+	Query string `json:"query" jsonschema:"description=Keywords to search for,required"`
+}
+
+func NewKeywordSearchTool(pipeline *rag.RAGPipeline) tool.InvokableTool {
+	t, _ := utils.InferTool("keyword_search", "Search notes by exact keyword matching in title and content.", func(ctx context.Context, input *KeywordSearchInput) (string, error) {
+		results, err := pipeline.NoteStore().SearchByKeyword(ctx, input.Query)
+		if err != nil {
+			return "", fmt.Errorf("keyword search failed: %w", err)
+		}
+		type item struct {
+			Title   string   `json:"title"`
+			Content string   `json:"content_preview"`
+			Tags    []string `json:"tags"`
+		}
+		items := make([]item, 0, len(results))
+		for _, n := range results {
+			preview := n.Content
+			if len(preview) > 200 {
+				preview = preview[:200] + "..."
+			}
+			items = append(items, item{
+				Title:   n.Title,
+				Content: preview,
+				Tags:    n.Tags,
+			})
+		}
+		b, _ := json.Marshal(items)
+		return string(b), nil
+	})
+	return t
+}