package com.onresolve.jira.groovy.jql

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.link.IssueLinkManager
import com.atlassian.jira.issue.link.IssueLink
import com.atlassian.jira.issue.Issue

import com.atlassian.jira.JiraDataType
import com.atlassian.jira.JiraDataTypes
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.jql.operand.QueryLiteral
import com.atlassian.jira.jql.query.QueryCreationContext
import com.atlassian.jira.permission.ProjectPermissions
import com.atlassian.jira.project.version.VersionManager
import com.atlassian.query.clause.TerminalClause
import com.atlassian.query.operand.FunctionOperand
import com.atlassian.jira.issue.link.IssueLink

class EpicOutLink extends AbstractScriptedJqlFunction implements JqlFunction {

    @Override
    String getDescription() {
        "Получаем связанные исходящие задачи к эпику "
    }


    @Override
    List<Map> getArguments() {
        [
            [
                description: "Epic Key",
                optional: false,
            ]
        ]
    }


    @Override
    String getFunctionName() {
        "epicOutLink"
    }


    @Override
    JiraDataType getDataType() {
        JiraDataTypes.ISSUE
    }


    @Override
    List<QueryLiteral> getValues( QueryCreationContext queryCreationContext, FunctionOperand operand, TerminalClause terminalClause) {

        List<QueryLiteral> out = []
        Issue issue = ComponentAccessor.getIssueManager().getIssueObject(operand.args.first().toUpperCase())
        if (issue == null) {
            retrun out
        }

        def issueLinkManager = ComponentAccessor.getIssueLinkManager()

        // Получаем связанные задачи у линка
        //def inwardLinks = issueLinkManager.getInwardLinks(issue.getId())
        def outwardLinks = issueLinkManager.getOutwardLinks(issue.getId())
        // для исходящих
        for (IssueLink link: outwardLinks) {
            if (link.getIssueLinkType().getName() == "Blocks") { // Фильтруем линки по типу
                out.add(new QueryLiteral(operand, link.getDestinationObject().getKey()))
            }
        }
        // для входящих
        //for (IssueLink link: inwardLinks) {
        //  if (link.getIssueLinkType().getName() == "Blocks") {
        //      out.add(new QueryLiteral(operand, link.getSourceObject().getKey()))
        //  }
        //}


    return out
    }
}