import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.event.type.EventDispatchOption
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.jira.bc.issue.search.SearchService
import com.atlassian.jira.web.bean.PagerFilter
import com.atlassian.jira.issue.link.IssueLink
import com.atlassian.jira.issue.Issue
import org.apache.log4j.Category


// Logs

Category log = log
log.setLevel(org.apache.log4j.Level.DEBUG)




// Manager

CustomFieldManager customFieldManager = ComponentAccessor.getCustomFieldManager()
def issueManager = ComponentAccessor.getIssueManager()



// Constants

List<MutableIssue> listIssue = new ArrayList<MutableIssue>()
def user = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()
SearchService searchService = ComponentAccessor.getComponent(SearchService.class)
def TopRiskJQL = "issuetype = 'Top Risk'  AND issueFunction in hasLinks()"
SearchService.ParseResult parseResultTopRisk =  searchService.parseQuery(user, TopRiskJQL)



// Treatment

// Store all issues with even ID in a list (listIssue)
if (parseResultTopRisk.isValid()) {
    def searchResult = searchService.search(user, parseResultTopRisk.getQuery(), PagerFilter.getUnlimitedFilter())
    def jqlIssue = searchResult.issues.collect {issueManager.getIssueObject(it.id)}
    for(MutableIssue issueSearch : jqlIssue){
        log.debug("issue Top Risk : " + issueSearch.getKey())
        String currentIssue = issueSearch
        listIssue.add(issueSearch)
    }
}
else {
    log.error("Invalid JQL: " + TopRiskJQL)
}
log.debug(listIssue)

log.info("...................")
log.info("Linked issues")
log.info("...................")


List<MutableIssue> listIssueActionPlan = new ArrayList<MutableIssue>()

for(int element=0 ; element<listIssue.size() ; element++)
{
    CustomField customFieldReaders = customFieldManager.getCustomFieldObject("customfield_10101")
    def valueReaders = listIssue[element].getCustomFieldValue(customFieldReaders)

    List<MutableIssue> listIssueLinkedPlan = new ArrayList<MutableIssue>()
    def ActionPlanJQL = "issue in linkedissues(" + listIssue[element] + ")"
    SearchService.ParseResult parseResultActionPlan =  searchService.parseQuery(user, ActionPlanJQL)


    if (parseResultActionPlan.isValid())
    {
        def searchResult = searchService.search(user, parseResultActionPlan.getQuery(), PagerFilter.getUnlimitedFilter())
        def jqlIssue = searchResult.issues.collect {issueManager.getIssueObject(it.id)}
        for(MutableIssue issueSearch : jqlIssue)
        {

            String currentIssue = issueSearch
            listIssueLinkedPlan.add(issueSearch)
        }
        if (listIssueLinkedPlan[0])
        {
            log.debug("issue Action Plan : " + listIssueLinkedPlan[0] + ", linked to Top Risk : " + listIssue[element])
            listIssueActionPlan.add(listIssueLinkedPlan[0])
            listIssueLinkedPlan[0].setCustomFieldValue(customFieldReaders, valueReaders)

            ComponentAccessor.getIssueManager().updateIssue(user, listIssueLinkedPlan[0], EventDispatchOption.ISSUE_UPDATED, false)

            log.debug("Action Plan Readers : " + listIssueLinkedPlan[0].getCustomFieldValue(customFieldReaders))
            log.debug(" ")
        }
    }
    else
    {
        log.error("Invalid JQL: " + ActionPlanJQL)
    }
}

log.debug(listIssueActionPlan)

log.info("...................")
log.info("Subtasks")
log.info("...................")

for(int element=0 ; element<listIssueActionPlan.size() ; element++)
{
    CustomField customFieldReaders = customFieldManager.getCustomFieldObject("customfield_10101")
    def valueReaders = listIssueActionPlan[element].getCustomFieldValue(customFieldReaders)

    List<MutableIssue> listChild = new ArrayList<MutableIssue>()
    def ActionJQL = "parent = " + listIssueActionPlan[element]
    SearchService.ParseResult parseResultAction =  searchService.parseQuery(user, ActionJQL)


    if (parseResultAction.isValid())
    {
        def searchResult = searchService.search(user, parseResultAction.getQuery(), PagerFilter.getUnlimitedFilter())
        def jqlIssue = searchResult.issues.collect {issueManager.getIssueObject(it.id)}
        for(MutableIssue issueSearch : jqlIssue)
        {

            String currentIssue = issueSearch
            listChild.add(issueSearch)
        }
        if (listChild[0])
        {
            log.debug("issue Action : " + listChild[0] + ", linked to Action Plan : " + listIssueActionPlan[element])
            listChild[0].setCustomFieldValue(customFieldReaders, valueReaders)

            ComponentAccessor.getIssueManager().updateIssue(user, listChild[0], EventDispatchOption.ISSUE_UPDATED, false)

            log.debug("Action Readers : " + listChild[0].getCustomFieldValue(customFieldReaders))
            log.debug(" ")
        }
    }
    else
    {
        log.error("Invalid JQL: " + ActionJQL)
    }
}