feat: add ai-agent plugin (#1192)

plugins/wasm-go/extensions/ai-agent/dashscope/message.go

@@ -0,0 +1,46 @@
+package dashscope
+
+var MessageStore ChatMessages
+
+func init() {
+	MessageStore = make(ChatMessages, 0)
+	MessageStore.Clear() //清理和初始化
+
+}
+
+type ChatMessages []Message
+
+// 枚举出角色
+const (
+	RoleUser      = "user"
+	RoleAssistant = "assistant"
+	RoleSystem    = "system"
+)
+
+func (cm *ChatMessages) Clear() {
+	*cm = make([]Message, 0) //重新初始化
+}
+
+// 添加角色和对应的prompt
+func (cm *ChatMessages) AddFor(msg string, role string) {
+	*cm = append(*cm, Message{
+		Role:    role,
+		Content: msg,
+	})
+}
+
+// 添加Assistant角色的prompt
+func (cm *ChatMessages) AddForAssistant(msg string) {
+	cm.AddFor(msg, RoleAssistant)
+
+}
+
+// 添加System角色的prompt
+func (cm *ChatMessages) AddForSystem(msg string) {
+	cm.AddFor(msg, RoleSystem)
+}
+
+// 添加User角色的prompt
+func (cm *ChatMessages) AddForUser(msg string) {
+	cm.AddFor(msg, RoleUser)
+}