using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Quartz;
using Quartz.Collection;
using System.Net.Sockets;
//using ClickForensics.Quartz.Jobs;
using System.IO;

namespace ClickForensics.Quartz.Manager
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
            jobGroupsTreeView.AfterSelect += new TreeViewEventHandler(jobGroupsTreeView_AfterSelect);
            ctxScheduler.Opening += new CancelEventHandler(ctxScheduler_Opening);
            jobGroupsTreeView.MouseDown += new MouseEventHandler(jobGroupsTreeView_MouseDown);

        }

        void ctxScheduler_Opening(object sender, CancelEventArgs e)
        {

        }

        void jobGroupsTreeView_AfterSelect(object sender, TreeViewEventArgs e)
        {
            jobDetailsToggle(false);
            if (e.Node is TriggerNode || e.Node is JobNode)
            {
                btnDeleteJob.Enabled = true;
            }
            else
            {
                btnDeleteJob.Enabled = false;
            }

            if (e.Node is JobNode)
            {
                btnRunJobNow.Enabled = true;
                pnlDetails.Controls.Add(new NativeJobDetailDisplay(((JobNode)e.Node).Detail));
                jobDetailsToggle(true);
            }
            else
            {
                btnRunJobNow.Enabled = false;

            }
            if (e.Node is TriggerNode)
            {
                btnPause.Enabled = true;
                setPauseButtonText();
                if (((TriggerNode)e.Node).Trigger is CronTrigger)
                {
                    pnlDetails.Controls.Add(new CronTriggerDisplay((CronTrigger)((TriggerNode)e.Node).Trigger));
                    jobDetailsToggle(true);
                }
                btnEdit.Enabled = true;
            }
            else
            {
                btnEdit.Enabled = false;
                btnPause.Enabled = false;
            }
        }

        private void setPauseButtonText()
        {
            TriggerNode node = (TriggerNode)jobGroupsTreeView.SelectedNode;
            string name = node.Trigger.Name;
            string group = node.Trigger.Group;
            if (Scheduler.GetScheduler().GetTriggerState(name, group) == TriggerState.Paused)
            {
                btnPause.Text = "Resume";
            }
            else
            {
                btnPause.Text = "Pause";
            }
        }

        private void connectToolStripMenuItem_Click(object sender, EventArgs e)
        {
            using (ServerConnectForm form = new ServerConnectForm())
            {
                form.ShowDialog();
                try
                {
                    Scheduler = new QuartzScheduler(form.Server, form.Port, form.Scheduler);
                    serverConnectStatusLabel.Text = string.Format("Connected to {0}", Scheduler.Address);
                    connectToolStripMenuItem.Enabled = false;
                    jobsToolStripMenuItem.Enabled = true;
                    loadJobGroups();
                    updateRunningJobs();
                }
                catch (SocketException ex)
                {
                    ErrorDialog dialog = new ErrorDialog();
                    dialog.Message = string.Format("Unable to connect to scheduler {0} on {1}:{2}", form.Scheduler, form.Server, form.Port);
                    dialog.Description = ex.Message;
                    dialog.ShowDialog();
                }
                form.Close();
            }
            //loadGlobalTriggers();
        }

        //private void loadGlobalTriggers()
        //{
        //    foreach (IJobListener jobListener in Scheduler.GetScheduler().GetJobDetail(null,null)..GlobalJobListeners)
        //    {
        //        globalTriggersListView.Items.Add(jobListener.Name);
        //    }
        //}

        private void loadJobGroups()
        {

            try
            {
                this.Cursor = Cursors.WaitCursor;

                jobDetailsToggle(false);
                jobGroupsTreeView.Nodes.Clear();
                SchedulerNode schedulerNode = new SchedulerNode(Scheduler);
                schedulerNode.ContextMenuStrip = ctxScheduler;
                jobGroupsTreeView.Nodes.Add(schedulerNode);
                TreeNode jobGroupsNode = schedulerNode.Nodes.Add("Job Groups");
                string[] jobGroups = Scheduler.GetScheduler().JobGroupNames;
                foreach (string jobGroup in jobGroups)
                {
                    TreeNode jobGroupNode = jobGroupsNode.Nodes.Add(jobGroup);
                    TreeNode jobsNode = jobGroupNode.Nodes.Add("Jobs");
                    addJobNodes(jobsNode);
                }

                jobGroupsTreeView.Nodes[0].Expand();
                jobGroupsNode.Expand();

                StripStatusLabel_Job_Groups.Text = System.DateTime.Now.ToString("yyyy.MM.dd HH:mm.ss");

            }
            finally
            {
                this.Cursor = Cursors.Default;
            }


        }

        private void jobDetailsToggle(System.Boolean isVisible)
        {
            if (isVisible == false)
            {
                pnlDetails.Controls.Clear();
            }
        }

        void jobGroupsTreeView_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                TreeNode node = jobGroupsTreeView.GetNodeAt(e.X, e.Y);
                if (node != null)
                {
                    jobGroupsTreeView.SelectedNode = node;
                    ctxScheduler.Show(jobGroupsTreeView, e.Location);
                }
            }
        }
        //private void loadJobs()
        //{
        //    foreach (TreeNode node in jobGroupsTreeView.Nodes)
        //    {
        //        addJobNodes(node);
        //    }
        //}

        private void addJobNodes(TreeNode node)
        {
            string group = node.Parent.Text;
            string[] jobs = Scheduler.GetScheduler().GetJobNames(group);
            foreach (string jobName in jobs)
            {
                try
                {
                    JobDetail detail = Scheduler.GetScheduler().GetJobDetail(jobName, group);
                    JobNode jobNode = new JobNode(detail);
                    node.Nodes.Add(jobNode);
                    addTriggerNodes(jobNode);
                    addListenerNodes(jobNode);
                }
                catch (Exception ex)
                {
                    //TODO: Do something useful with this exception. Most likely cause is the client does not have a copy of a given dll and can't load the type.
                }
            }
        }

        private void addListenerNodes(JobNode node)
        {
            string jobName = node.Text;
            string jobGroupName = node.Parent.Text;
            string[] listenerNames = node.Detail.JobListenerNames;
            foreach (string listener in listenerNames)
            {
                node.Text = string.Format("JL {0}", listenerNames);
            }
            //ISet set = Scheduler.GetScheduler().JobListenerNames;
        }

        private void addTriggerNodes(TreeNode treeNode)
        {
            Trigger[] triggers = Scheduler.GetScheduler().GetTriggersOfJob(treeNode.Text, treeNode.Parent.Parent.Text);
            TreeNode triggersNode = treeNode.Nodes.Add("Triggers");
            foreach (Trigger trigger in triggers)
            {
                TriggerNode node = new TriggerNode(trigger);
                triggersNode.Nodes.Add(node);
            }

        }
        private void updateRunningJobs()
        {
            try
            {
                this.Cursor = Cursors.WaitCursor;

                timer_Refresh_Running_Jobs.Stop();

                listView_RunningJobs.Items.Clear();

                DataTable table = Scheduler.GetRunningJobs();
                foreach (DataRow row in table.Rows)
                {
                    //JobName JobDuration
                    ListViewItem item = new ListViewItem(new string[] { System.Convert.ToString(row["JobName"]), System.Convert.ToString(row["Runtime"]) });
                    listView_RunningJobs.Items.Add(item);
                }
                StripStatusLabel_Jobs_Refresh_date.Text = System.DateTime.Now.ToString("yyyy.MM.dd HH:mm.ss");


                //reset the timer ( documentation not clear if .stop = restart @ 0 in timing, but changing the interval sure should do that. )
                int timer_was = timer_Refresh_Running_Jobs.Interval;
                timer_Refresh_Running_Jobs.Interval = timer_was + 1;
                timer_Refresh_Running_Jobs.Interval = timer_was;

                timer_Refresh_Running_Jobs.Start();
            }
            finally
            {
                this.Cursor = Cursors.Default;
            }
        }
        public QuartzScheduler Scheduler { get; set; }

        private void addGlobalListenerToolStripMenuItem_Click(object sender, EventArgs e)
        {
            AddListenerForm form = new AddListenerForm();
            form.ListenerInterface = typeof(IJobListener);
            form.ShowDialog();
            JobDataMap map = new JobDataMap();
            map.Add("type", form.ListenerType);
            //Scheduler.ScheduleOneTimeJob(typeof(AddJobListenerJob), map, 0);
            loadJobGroups();
        }

        private void addJobListenerToolStripMenuItem_Click(object sender, EventArgs e)
        {
            TreeNode selectedNode = jobGroupsTreeView.SelectedNode;
            if (selectedNode != null && selectedNode is JobNode)
            {
                AddListenerForm form = new AddListenerForm();
                form.ListenerInterface = typeof(IJobListener);
                form.ShowDialog();
                //JobHistoryListener listener = new JobHistoryListener();
                //listener.Name = null;
                //((JobNode)selectedNode).Detail.AddJobListener();
            }
        }

        private void addJobToolStripMenuItem_Click(object sender, EventArgs e)
        {
            AddJobForm form = new AddJobForm();
            form.ShowDialog();
            if (form.JobDetail != null && form.Trigger != null)
            {
                Scheduler.GetScheduler().ScheduleJob(form.JobDetail, form.Trigger);
                loadJobGroups();
            }
        }

        private void btnRefreshRunningJobs_Click(object sender, EventArgs e)
        {
            updateRunningJobs();
        }

        private void btnRefreshJobGroups_Click(object sender, EventArgs e)
        {
            loadJobGroups();
        }

        private void btnRunJobNow_Click(object sender, EventArgs e)
        {
            JobNode node = (JobNode)jobGroupsTreeView.SelectedNode;
            string job = node.Detail.Name;
            string group = node.Detail.Group;
            Scheduler.GetScheduler().TriggerJobWithVolatileTrigger(job, group);
        }

        private void btnDeleteJob_Click(object sender, EventArgs e)
        {
            TreeNode selectedNode = jobGroupsTreeView.SelectedNode;
            if (selectedNode is JobNode)
            {
                JobNode node = (JobNode)jobGroupsTreeView.SelectedNode;
                string job = node.Detail.Name;
                string group = node.Detail.Group;
                Scheduler.GetScheduler().DeleteJob(job, group);
                jobGroupsTreeView.SelectedNode.Remove();

            }
            if (selectedNode is TriggerNode)
            {
                Scheduler.GetScheduler().UnscheduleJob(((TriggerNode)selectedNode).Trigger.Name, ((TriggerNode)selectedNode).Trigger.Group);
            }

            //loadJobGroups();
        }

        private void btnPause_Click(object sender, EventArgs e)
        {
            TriggerNode node = (TriggerNode)jobGroupsTreeView.SelectedNode;
            string name = node.Trigger.Name;
            string group = node.Trigger.Group;
            if (Scheduler.GetScheduler().GetTriggerState(name, group) == TriggerState.Paused)
            {
                Scheduler.GetScheduler().ResumeTrigger(name, group);
            }
            else
            {
                Scheduler.GetScheduler().PauseTrigger(name, group);
            }
            setPauseButtonText();
        }

        private void assembliesToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void configureToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void btnEdit_Click(object sender, EventArgs e)
        {
            TriggerNode node = (TriggerNode)jobGroupsTreeView.SelectedNode;
            AddJobForm form = new AddJobForm(node);
            form.ShowDialog();
            if (form.JobDetail != null && form.Trigger != null)
            {
                Scheduler.GetScheduler().RescheduleJob(node.Trigger.Name, node.Trigger.Group, form.Trigger);
                loadJobGroups();
            }
        }

        private void deleteThemAllToolStripMenuItem_Click(object sender, EventArgs e)
        {
            foreach (var job in Scheduler.GetScheduler().GetJobNames("Cube"))
            {
                if (job.Contains("CreateCubeFor"))
                {

                    Scheduler.GetScheduler().DeleteJob(job, "Cube");
                }
            }
        }

        private void backupToolStripMenuItem_Click(object sender, EventArgs e)
        {
            QuartzScheduler scheduler = ((SchedulerNode)((TreeView)((ContextMenuStrip)((ToolStripMenuItem)sender).Owner).SourceControl).SelectedNode).Scheduler;
            FileDialog dialog = new SaveFileDialog();
            dialog.ShowDialog();
            FileInfo file = new FileInfo(dialog.FileName);
            scheduler.BackupToFile(file);
        }

        private void timer_Refresh_Running_Jobs_Tick(object sender, EventArgs e)
        {
            updateRunningJobs();
        }

        private void runningJobsListView_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void listView_RunningJobs_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }
}