package protocol

// Action 动作接口
// 参考OneBot12协议，定义统一的动作操作接口
type Action interface {
	// GetType 获取动作类型
	GetType() ActionType
	// GetParams 获取动作参数
	GetParams() map[string]interface{}
	// Execute 执行动作
	Execute(ctx interface{}) (map[string]interface{}, error)
}

// ActionType 动作类型
type ActionType string

const (
	// 消息相关动作
	ActionTypeSendPrivateMessage ActionType = "send_private_message"
	ActionTypeSendGroupMessage   ActionType = "send_group_message"
	ActionTypeDeleteMessage      ActionType = "delete_message"

	// 用户相关动作
	ActionTypeGetUserInfo        ActionType = "get_user_info"
	ActionTypeGetFriendList      ActionType = "get_friend_list"
	ActionTypeGetGroupInfo       ActionType = "get_group_info"
	ActionTypeGetGroupMemberList ActionType = "get_group_member_list"

	// 群组相关动作
	ActionTypeSetGroupKick       ActionType = "set_group_kick"
	ActionTypeSetGroupBan        ActionType = "set_group_ban"
	ActionTypeSetGroupAdmin      ActionType = "set_group_admin"
	ActionTypeSetGroupWholeBan   ActionType = "set_group_whole_ban"

	// 其他动作
	ActionTypeGetStatus          ActionType = "get_status"
	ActionTypeGetVersion         ActionType = "get_version"
)

// BaseAction 基础动作结构
type BaseAction struct {
	Type   ActionType            `json:"type"`
	Params map[string]interface{} `json:"params"`
}

// GetType 获取动作类型
func (a *BaseAction) GetType() ActionType {
	return a.Type
}

// GetParams 获取动作参数
func (a *BaseAction) GetParams() map[string]interface{} {
	return a.Params
}

// Execute 执行动作(需子类实现)
func (a *BaseAction) Execute(ctx interface{}) (map[string]interface{}, error) {
	return nil, ErrNotImplemented
}

// SendPrivateMessageAction 发送私聊消息动作
type SendPrivateMessageAction struct {
	BaseAction
	UserID string `json:"user_id"`
	Message string `json:"message"`
}

// SendGroupMessageAction 发送群聊消息动作
type SendGroupMessageAction struct {
	BaseAction
	GroupID string `json:"group_id"`
	Message string `json:"message"`
}

// DeleteMessageAction 删除消息动作
type DeleteMessageAction struct {
	BaseAction
	MessageID string `json:"message_id"`
}

// GetUserInfoAction 获取用户信息动作
type GetUserInfoAction struct {
	BaseAction
	UserID string `json:"user_id"`
}

// GetGroupInfoAction 获取群信息动作
type GetGroupInfoAction struct {
	BaseAction
	GroupID string `json:"group_id"`
}

// 错误定义
var (
	ErrNotImplemented = &ProtocolError{Code: 10001, Message: "action not implemented"}
	ErrInvalidParams  = &ProtocolError{Code: 10002, Message: "invalid parameters"}
)

// ProtocolError 协议错误
type ProtocolError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

func (e *ProtocolError) Error() string {
	return e.Message
}