Poll-system/app/internal/handlers/volunteer_schedual.go

package handlers

import (
	"fmt"
	"time"

	"github.com/patel-mann/poll-system/app/internal/models"
)

func ValidatedFreeTime(parsedDate time.Time, assignTime time.Time, userID int) (bool)  {
    var startTime, endTime time.Time

		dateOnly := parsedDate.Format("2006-01-02")

    err := models.DB.QueryRow(
        `SELECT start_time, end_time
         FROM availability
         WHERE user_id = $1 AND day = $2`,
        userID, dateOnly,
    ).Scan(&startTime, &endTime)

    if err != nil {
        fmt.Printf("Database query failed: %v\n", err)
				return false
    }

		if assignTime.After(startTime) && assignTime.Before(endTime) {
			return true
		}else{
			return false
		}

	return false
}