date_range.go

package middleware

import (
	"net/http"
	"strconv"
	"time"

	"core/http/jsonapi"
	"core/http/router"
	"domain"
)

func DateRange(next http.Handler) http.Handler {
	h := func(w http.ResponseWriter, r *http.Request) {
		from := router.QueryString(r, "from")
		if from == "" {
			// ... return error response
			return
		}

		fromInt, err := strconv.ParseInt(from, 10, 64)
		if err != nil {
			// ... return error response
			return
		}

		to := router.QueryString(r, "to")
		if from == "" {
			// ... return error response
			return
		}

		toInt, err := strconv.ParseInt(to, 10, 64)
		if err != nil {
			// ... return error response
			return
		}

		fromTime := time.Unix(fromInt, 0)
		toTime := time.Unix(toInt, 0)

		domain.DateRange{
			From: time.Date(fromTime.Year(), fromTime.Month(), fromTime.Day(), 0, 0, 0, 0, time.UTC),
			To:   time.Date(toTime.Year(), toTime.Month(), toTime.Day(), 23, 59, 59, 0, time.UTC),
		}
		next.ServeHTTP(w, r.WithContext(ctx))
	}

	return http.HandlerFunc(h)
}