refactor: 重构handler系统

auth/auth.go

@@ -1,7 +1,7 @@
 package auth
 
 import (
-	"git.lxtend.com/qqbot/handler"
+	"git.lxtend.com/qqbot/constants"
 	"git.lxtend.com/qqbot/model"
 	"git.lxtend.com/qqbot/sqlite3"
 )
@@ -17,7 +17,7 @@ func init() {
 	sqlite3.TryCreateTable(authTableCreateSQL)
 }
 
-func HasPermission(qqID int64, level int) bool {
+func HasPermission(qqID int64, level constants.PermissionLevel) bool {
 	auth, err := getAuth(qqID)
 	if err != nil {
 		return false
@@ -25,7 +25,7 @@ func HasPermission(qqID int64, level int) bool {
 	return auth.Role <= level
 }
 
-func TryExecHandler(msg model.Message, level int, handler handler.Handler) (reply model.Reply) {
+func TryExecHandler(msg model.Message, level constants.PermissionLevel, handler model.Handler) (reply model.Reply) {
 	if HasPermission(msg.UserId, level) {
 		return handler(msg)
 	}

auth/model.go

@@ -1,6 +1,8 @@
 package auth
 
+import "git.lxtend.com/qqbot/constants"
+
 type Auth struct {
-	Qqid string `json:"qqid" db:"qqid"`
-	Role int    `json:"role" db:"role"`
+	Qqid string                    `json:"qqid" db:"qqid"`
+	Role constants.PermissionLevel `json:"role" db:"role"`
 }