import com.atlassian.jira.component.ComponentAccessor

import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.event.issue.AbstractIssueEventListener
import com.atlassian.jira.bc.issue.IssueService


def issue = event.issue as MutableIssue


    def createdDate = issue.getCreated()
    def resolvedDate = issue.getResolutionDate()
if(issue.issueType.name == 'LAB')
{
    if (createdDate && resolvedDate)
    {
        Integer duration = new Double(resolvedDate.getTime() - createdDate.getTime())/(1000*60*60*24).toInteger()
        Long timeSpentVal = (duration * 60 * 60 * 8).toLong()
        issue.setTimeSpent(timeSpentVal)

    }

}