package middleware

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
	"mc-client-updater-server/internal/service"
	"mc-client-updater-server/pkg/result"
)

func GrantRequired(c *gin.Context) {
	instName := c.Param("name")
	// 判断instance name是否存在
	srv := service.NewInstanceService(c)
	res := result.NewResult(c)
	instEntity, err := srv.GetInstanceByName(instName)
	if err == gorm.ErrRecordNotFound {
		res.InvalidInstance(instName)
		return
	} else if err != nil {
		res.InternalServerError("查询实例对象时出现错误")
		return
	}
	c.Set("instance", instEntity)

	// 判断grant_code是否合法
	grantCode := c.GetHeader("GrantCode")
	if grantCode == "" {
		res.Unauthorized()
		return
	}
	grantEntity, err := srv.GetGrantByToken(grantCode)
	if err != nil {
		res.Unauthorized()
		return
	}
	c.Set("grant", grantEntity)
	c.Next()
}