using Microsoft.VisualStudio.TestTools.UnitTesting;
using Falcon.TaskScheduling;
using System;
using System.Collections.Generic;
using System.Text;
using Falcon.TaskSchedulingTests;

namespace Falcon.TaskScheduling.Tests
{
    [TestClass()]
    public class ConcurrentQueueTaskTests
    {
        [TestMethod()]
        public void AddFirstQueueTest() {
            ConcurrentQueueTask ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableFirstQueue = true,
            });
            ts.AddFirstQueue(new TaskUnit());
            Assert.IsTrue(ts.FirstQueue.Count == 1);
            ts.AddFirstQueue(new TaskUnit());
            Assert.IsTrue(ts.FirstQueue.Count == 2);

            ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableFirstQueue = false,
            });
            try {
                ts.AddFirstQueue(new TaskUnit());
            } catch(NotSupportedException ex) {

            }
            Assert.IsNull(ts.FirstQueue);
        }

        [TestMethod()]
        public void AddIdleQueueTest() {
            ConcurrentQueueTask ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableIdleQueue = true,
            });
            ts.AddIdleQueue(new TaskUnit());
            Assert.IsTrue(ts.IdleQueue.Count == 1);
            ts.AddIdleQueue(new TaskUnit());
            Assert.IsTrue(ts.IdleQueue.Count == 2);

            ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableIdleQueue = false,
            });
            try {
                ts.AddIdleQueue(new TaskUnit());
            } catch(NotSupportedException ex) {

            }
            Assert.IsNull(ts.IdleQueue);
        }

        [TestMethod()]
        public void AddSystemQueueTest() {
            ConcurrentQueueTask ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableSystemQueue = true,
            });
            ts.AddSystemQueue(new TaskUnit());
            Assert.IsTrue(ts.SystemQueue.Count == 1);
            ts.AddSystemQueue(new TaskUnit());
            Assert.IsTrue(ts.SystemQueue.Count == 2);

            ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableSystemQueue = false,
            });
            try {
                ts.AddSystemQueue(new TaskUnit());
            } catch(NotSupportedException ex) {

            }
            Assert.IsNull(ts.SystemQueue);
        }

        [TestMethod()]
        public void AddQueueTest() {
            ConcurrentQueueTask ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                QueueDefine = "50,40",
            });
            Assert.IsTrue(ts.Queue.Count == 2);
            Assert.IsTrue(ts.Queue.ToArray()[0].Queue.Count == 0);
            Assert.IsTrue(ts.Queue.ToArray()[0].Weight == 50);
            Assert.IsTrue(ts.Queue.ToArray()[1].Queue.Count == 0);
            Assert.IsTrue(ts.Queue.ToArray()[1].Weight == 40);
        }

        [TestMethod()]
        public void StartTest() {
            ConcurrentQueueTask ts = new ConcurrentQueueTask(new TaskSchedulerOption {
                EnableFirstQueue = true,
                EnableIdleQueue = true,
                EnableSystemQueue = true,
                QueueDefine = "50,40",
            });
            var tul = new List<TaskUnit>();
            tul.Add(new TaskUnit("1",TaskType.system));
            tul.Add(new TaskUnit("2",TaskType.system));
            tul.Add(new TaskUnit("3",TaskType.idel));
            tul.Add(new TaskUnit("4",TaskType.first));
            tul.Add(new TaskUnit("5",TaskType.queue));
            tul.Add(new TaskUnit("6",TaskType.queue));

            foreach(var t in tul) {
                switch(t.Type) {
                    case TaskType.system:
                        ts.AddSystemQueue(t);
                        break;
                    case TaskType.first:
                        ts.AddFirstQueue(t);
                        break;
                    case TaskType.queue:
                        ts.AddQueue(50,t);
                        break;
                    case TaskType.idel:
                        ts.AddIdleQueue(t);
                        break;
                    default:
                        break;
                }
            }
            ts.Start();
            Assert.IsTrue(tul.Count == TaskUnit.ResultList.Count);
            string wl = "";
            foreach(var tu in TaskUnit.ResultList) {
                Assert.IsTrue(tu.State == tu.Result);
                wl += tu.Result;
            }
            Assert.IsTrue(wl == "124563");
        }
    }
}