package handler

import (
	"github.com/gin-gonic/gin"
	"mc-client-updater-server/internal/service"
	"mc-client-updater-server/pkg/param"
	"mc-client-updater-server/pkg/result"
	"mc-client-updater-server/pkg/util"
	"time"
)

func HandleLogin(c *gin.Context) {
	res := result.NewResult(c)
	loginParam := param.LoginParam{}
	err := c.ShouldBindJSON(&loginParam)
	if err != nil {
		res.BadRequest()
		return
	}

	srv := service.NewUserService(c)
	srv.Login(loginParam.Username, loginParam.Password)
}

func HandleGrantAdd(c *gin.Context) {
	res := result.NewResult(c)
	p := param.NewGrantTokenParam{}
	err := c.ShouldBindJSON(&p)
	if err != nil {
		res.BadRequest()
		return
	}
	if p.ExpireAt != "" {
		isValid := util.IsSQLTimeFormat(p.ExpireAt)
		if !isValid {
			res.BadRequestWithMsg("请求参数错误：时间格式错误，应为2006-01-02 15:04:05格式")
			return
		}
	} else {
		if p.TTL == 0 {
			res.BadRequestWithMsg("请求参数错误：至少提供expire_at和ttl中的一项且不为0")
			return
		}
		p.ExpireAt = util.ToSQLTimeFormat(time.Now().Add(time.Duration(p.TTL) * time.Second))
	}

	srv := service.NewInstanceService(c)
	// 验证 target -> instance(name) 是否存在
	_, err = srv.GetInstanceByName(p.Target)
	if err != nil {
		res.InvalidInstance(p.Target)
		return
	}

	grantEntity, err := srv.NewGrantToken(p.Target, p.ExpireAt)
	if err != nil {
		res.InternalServerError("生成授权码失败")
		return
	}
	res.Success(grantEntity)
}

func HandleNewInstance(c *gin.Context) {
	res := result.NewResult(c)
	p := param.AddInstanceParam{}
	err := c.ShouldBindJSON(&p)
	if err != nil {
		res.BadRequest()
		return
	}

	srv := service.NewInstanceService(c)
	inst, err := srv.AddInstance(p.Name, p.UpdateURL)
	if err != nil {
		res.DuplicatedValue("实例名称已存在")
		return
	}
	res.Success(inst)
}