添加ai支持

backend/my_work/agents/agent.go

@@ -0,0 +1,89 @@
+package agents
+
+import (
+	"context"
+	"fmt"
+	"strings"
+)
+
+type ToolConfig struct {
+	Name        string
+	Enabled     bool
+	Description string
+}
+
+type TraceFunc func(tool string, stage string, status string, message string, data map[string]interface{})
+
+type Tool interface {
+	Name() string
+	Enabled(config ToolConfig) bool
+	ShouldUse(messages []ChatMessage) bool
+	Enrich(ctx context.Context, messages []ChatMessage, config ToolConfig, trace TraceFunc) ([]ChatMessage, error)
+}
+
+type ChatMessage struct {
+	Role    string `json:"role"`
+	Content string `json:"content"`
+}
+
+var registry []Tool
+
+func Register(tool Tool) {
+	registry = append(registry, tool)
+}
+
+func EnabledTools(configs []ToolConfig) []Tool {
+	tools := make([]Tool, 0)
+	for _, tool := range registry {
+		config := FindToolConfig(configs, tool.Name())
+		if tool.Enabled(config) {
+			tools = append(tools, tool)
+		}
+	}
+	return tools
+}
+
+func EnrichMessages(ctx context.Context, messages []ChatMessage, configs []ToolConfig, trace TraceFunc) []ChatMessage {
+	enriched := append([]ChatMessage{}, messages...)
+	for _, tool := range EnabledTools(configs) {
+		if !tool.ShouldUse(enriched) {
+			continue
+		}
+		config := FindToolConfig(configs, tool.Name())
+		var err error
+		enriched, err = tool.Enrich(ctx, enriched, config, trace)
+		if err != nil && trace != nil {
+			trace(tool.Name(), "execute", "error", err.Error(), nil)
+		}
+	}
+	return enriched
+}
+
+func FindToolConfig(configs []ToolConfig, name string) ToolConfig {
+	for _, config := range configs {
+		if strings.EqualFold(config.Name, name) {
+			return config
+		}
+	}
+	return ToolConfig{Name: name, Enabled: false}
+}
+
+func LastUserContent(messages []ChatMessage) string {
+	for i := len(messages) - 1; i >= 0; i-- {
+		if messages[i].Role == "user" {
+			return messages[i].Content
+		}
+	}
+	return ""
+}
+
+func SystemMessage(content string) ChatMessage {
+	return ChatMessage{Role: "system", Content: content}
+}
+
+func SafeString(value interface{}) string {
+	if value == nil {
+		return ""
+	}
+	return fmt.Sprint(value)
+}