/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.*;
import java.lang.*;
import org.ofbiz.entity.*;
import org.ofbiz.base.util.*;
import org.ofbiz.entity.util.*;
import org.ofbiz.entity.condition.EntityCondition;
import org.ofbiz.entity.condition.EntityConditionList;
import org.ofbiz.entity.condition.EntityExpr;
import org.ofbiz.entity.condition.EntityOperator;
import java.math.*;

projectId = parameters.projectId;
userLogin = parameters.userLogin;

//project info
result = runService('getProject', [projectId : projectId, userLogin : userLogin]);
project = result.projectInfo;
if (project && project.startDate)
    context.chartStart = project.startDate;
else
    context.chartStart = UtilDateTime.nowTimestamp(); // default todays date
if (project && project.completionDate)
    context.chartEnd = project.completionDate;
else
    context.chartEnd = UtilDateTime.addDaysToTimestamp(UtilDateTime.nowTimestamp(), 14); // default 14 days long

if (project == null) return;

ganttList = new LinkedList();
result = runService('getProjectPhaseList', [userLogin : userLogin , projectId : projectId]);
phases = result.phaseList;
if (phases) {
    phases.each { phase ->
        newPhase = phase;
        newPhase.phaseNr = phase.phaseId;
        if (!newPhase.estimatedStartDate && newPhase.actualStartDate) {
            newPhase.estimatedStartDate = newPhase.actualStartDate;
        }
        if (!newPhase.estimatedStartDate) {
            newPhase.estimatedStartDate = context.chartStart;
        }
        if (!newPhase.estimatedCompletionDate && newPhase.actualCompletionDate) {
            newPhase.estimatedCompletionDate = newPhase.actualCompletionDateDate;
        }
        if (!newPhase.estimatedCompletionDate) {
            newPhase.estimatedCompletionDate = UtilDateTime.addDaysToTimestamp(newPhase.estimatedStartDate, 3);
        }
        newPhase.workEffortTypeId = "PHASE";
        ganttList.add(newPhase);
        cond = EntityCondition.makeCondition(
                [
                EntityCondition.makeCondition("currentStatusId", EntityOperator.NOT_EQUAL, "PTS_CANCELLED"),
                EntityCondition.makeCondition("workEffortParentId", EntityOperator.EQUALS, phase.phaseId)
                ], EntityOperator.AND);
        tasks = from("WorkEffort").where(cond).orderBy("sequenceNum","workEffortName").queryList();
        if (tasks) {
            tasks.each { task ->
                resultTaskInfo = runService('getProjectTask', [userLogin : userLogin , taskId : task.workEffortId]);
                taskInfo = resultTaskInfo.taskInfo;
                taskInfo.taskNr = task.workEffortId;
                taskInfo.phaseNr = phase.phaseId;
                if (taskInfo.plannedHours && !taskInfo.currentStatusId.equals("PTS_COMPLETED") && taskInfo.plannedHours > taskInfo.actualHours) {
                    taskInfo.resource = taskInfo.plannedHours + " Hrs";
                } else {
                    taskInfo.resource = taskInfo.actualHours + " Hrs";
                }
                Double duration = resultTaskInfo.plannedHours;
                if (taskInfo.currentStatusId.equals("PTS_COMPLETED")) {
                    taskInfo.completion = 100;
                } else {
                    if (taskInfo.actualHours && taskInfo.plannedHours) {
                        taskInfo.completion = new BigDecimal(taskInfo.actualHours * 100 / taskInfo.plannedHours).setScale(0, BigDecimal.ROUND_UP);
                    } else {
                        taskInfo.completion = 0;
                    }
                }
                if (!taskInfo.estimatedStartDate && taskInfo.actualStartDate) {
                    taskInfo.estimatedStartDate = taskInfo.actualStartDate;
                }
                if (!taskInfo.estimatedStartDate) {
                    taskInfo.estimatedStartDate = newPhase.estimatedStartDate;
                }
                if (!taskInfo.estimatedCompletionDate && taskInfo.actualCompletionDate) {
                    taskInfo.estimatedCompletionDate = taskInfo.actualCompletionDate;
                }
                if (!taskInfo.estimatedCompletionDate && !duration) {
                    taskInfo.estimatedCompletionDate = UtilDateTime.addDaysToTimestamp(newPhase.estimatedStartDate, 3);
                } else if (!taskInfo.estimatedCompletionDate && duration) {
                    taskInfo.estimatedCompletionDate = UtilDateTime.addDaysToTimestamp(newPhase.estimatedStartDate, duration/8);
                }
                taskInfo.estimatedStartDate = UtilDateTime.toDateString(taskInfo.estimatedStartDate, "MM/dd/yyyy");
                taskInfo.estimatedCompletionDate = UtilDateTime.toDateString(taskInfo.estimatedCompletionDate, "MM/dd/yyyy");
                taskInfo.workEffortTypeId = task.workEffortTypeId;
                if (security.hasEntityPermission("PROJECTMGR", "_READ", session) || security.hasEntityPermission("PROJECTMGR", "_ADMIN", session)) {
                    taskInfo.url = "/projectmgr/control/taskView?workEffortId="+task.workEffortId;
                } else {
                    taskInfo.url = "";
                }

                // dependency can only show one in the ganttchart, so onl show the latest one..
                preTasks = from("WorkEffortAssoc").where("workEffortIdTo", task.workEffortId).orderBy("workEffortIdFrom").queryList();
                latestTaskIds = new LinkedList();
                preTasks.each { preTask ->
                    wf = preTask.getRelatedOne("FromWorkEffort", false);
                    latestTaskIds.add(wf.workEffortId);
                }
                count = 0;
                if (UtilValidate.isNotEmpty(latestTaskIds)) {
                    taskInfo.preDecessor = "";
                    for (i in latestTaskIds) {
                        if (count > 0) {
                            taskInfo.preDecessor = taskInfo.preDecessor +", " + i; 
                        } else {
                            taskInfo.preDecessor = taskInfo.preDecessor + i;
                        }
                        count ++;
                    }
                }
                ganttList.add(taskInfo);
            }
        }
    }
}
context.phaseTaskList = ganttList;