package?main

import?(
???"github.com/gin-gonic/gin"
???"gopkg.in/go-playground/validator.v9"
???"net/http"
???"time"
)

type?Booking?struct?{
???CheckIn?time.Time?`form:"check_in"?validate:"required,bookableDate"?time_format:"2006-01-02"`
???CheckOut?time.Time?`form:"check_out"?validate:"required,gtfield=CheckIn"?time_format:"2006-01-02"`
}


func?main(){

???r?:=?gin.Default()

???validate?:=?validator.New()
???validate.RegisterValidation("bookableDate",?bookableDate)
???r.GET("/bookable",?func(c?*gin.Context)?{
??????var?book?Booking
??????if?err?:=?c.ShouldBind(&book);?err?!=?nil?{
?????????c.JSON(http.StatusInternalServerError,?gin.H{
????????????"error":?err.Error(),
?????????})
?????????c.Abort()
?????????return
??????}
??????if?err?:=?validate.Struct(book);?err?!=?nil?{
?????????c.JSON(http.StatusInternalServerError,?gin.H{
????????????"error":?err.Error(),
?????????})
?????????c.Abort()
?????????return
??????}

??????c.JSON(http.StatusOK,?gin.H{
?????????"message":?"OK",
?????????"booking":?book,
??????})
???})

???r.Run()
}

func?bookableDate(fl?validator.FieldLevel)?bool?{

???if?date,?ok?:=?fl.Field().Interface().(time.Time);?ok?{
??????today?:=?time.Now()
??????if?date.Unix()?>?today.Unix()?{
?????????return?true
??????}
???}

???return?false
}