package contracts

import (
	"github.com/samber/do"
)

type MqttService interface {
	Start() error
	Stop() error
	Restart() error

	// 消息推送
	//
	// Example:
	//
	// Parameters:
	//   topic 订阅的主题
	//   msg 传递的消息
	//   retain 是否保留
	//   qos 传递的消息,
	//      0: 至多一次, 如果发送失败，也就算了
	//      1: 至少一次, 消息将确保至少被传递一次，但可能会重复发送
	//      2: 确保只有一次, 确保消息仅被传递一次且没有重复传递
	// Returns:
	//   error - 执行结果
	Publish(topic string, msg any, retain bool, qos byte) error

	// 关闭消息队列
	Close(origin string)
}

type Mqtt interface {
	Controller
	// 链接
	// OnConnect(g GlobalParams, topic string) error
	// 断开链接
	// OnDisconnect(g GlobalParams, topic string) error
	// 订阅事件
	OnSubscribed(g GlobalParams, topic string) error
	// 取消订阅事件
	OnUnsubscribed(g GlobalParams, topic string) error
	// 消息发布事件
	OnMessage(g GlobalParams, topic string, retain bool, qos byte) error
	// 消息被丢弃
	OnMessageDropped(g GlobalParams, topic string, retain bool, qos byte) error
	// 原生消息修改
	OnPublish(g GlobalParams, topic string, retain bool, qos byte, raw []byte) ([]byte, error)
	// 保留类型消息事件
	// OnRetainMessage(g GlobalParams, topic string) error
	// Qos消息完成事件
	// OnQosMessage(g GlobalParams, topic string) error
	// 客户端超时事件
	// OnClientExpired(GlobalParams) error
	// 保留消息超时事件
	// OnRetainedExpired(g GlobalParams, topic string) error
}

type MqttHandle struct {
	Controller
}

func (this *MqttHandle) OnSubscribed(g GlobalParams, topic string) error {
	return ErrFuncNotImplemented
}

func (this MqttHandle) OnUnsubscribed(g GlobalParams, topic string) error {
	return ErrFuncNotImplemented
}

func (this MqttHandle) OnMessage(g GlobalParams, topic string, retain bool, qos byte) error {
	return ErrFuncNotImplemented
}

func (this MqttHandle) OnMessageDropped(g GlobalParams, topic string, retain bool, qos byte) error {
	return ErrFuncNotImplemented
}

func (this MqttHandle) OnPublish(g GlobalParams, topic string, retain bool, qos byte, raw []byte) ([]byte, error) {
	return nil, ErrFuncNotImplemented
}

func NewMqttController(container *do.Injector) Mqtt {
	return &MqttHandle{
		Controller: &BaseController{container},
	}
}