using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using RomCheater.PluginFramework.Interfaces;
using RomCheater.PluginFramework.Core;

namespace RomCheater
{
    public partial class PIDSelector : Form
    {
        private IConfigPlugin plugin = null;
        //bool isInError = false;
        public PIDSelector() { InitializeComponent(); this.SelectedPid = -1; }
        public PIDSelector(IConfigPlugin plugin) : this() { this.plugin = plugin; }
        // unsued construtor (it's not implmented, may not be)
        [Obsolete("constructor PIDSelector(int pid) is not implemented", false)]
        public PIDSelector(int pid) : this() { this.SelectedPid = pid; }
        [Obsolete("constructor PIDSelector(IConfigPlugin plugin, int pid) is not implemented", false)]
        public PIDSelector(IConfigPlugin plugin, int pid) : this(plugin) { this.SelectedPid = pid; }

        private int _SelectedPid;
        public int SelectedPid { get { return _SelectedPid; } set { _SelectedPid = value; } }


        public new void Show() { this.Show(null); }
        public new void Show(IWin32Window owner) { this.PreInitShow(owner); }
        public new DialogResult ShowDialog() { return this.ShowDialog(null); }
        public new DialogResult ShowDialog(IWin32Window owner) { return this.PreInitDialog(owner); }
        private void PreInitShow(IWin32Window owner)
        {
            if (!this.RefreshList()) { MessageBox.Show("Could not find any PCSX2 Processes.  Please start an instance of one."); }
            else { if (owner == null) { base.Show(); } else { base.Show(owner); } }
        }
        private DialogResult PreInitDialog(IWin32Window owner)
        {
            if (!this.RefreshList()) { MessageBox.Show("Could not find any PCSX2 Processes.  Please start an instance of one."); return DialogResult.Cancel; }
            else { if (owner == null) { return base.ShowDialog(); } else { return base.ShowDialog(owner); } }
        }
        private void btnLargeIcon_Click(object sender, EventArgs e) { this.lstProcessList.View = View.LargeIcon; }
        private void btnDetails_Click(object sender, EventArgs e) { this.lstProcessList.View = View.Details; }
        private void btnSmallIcon_Click(object sender, EventArgs e) { this.lstProcessList.View = View.SmallIcon; }
        private void btnList_Click(object sender, EventArgs e) { this.lstProcessList.View = View.List; }
        private void btnTile_Click(object sender, EventArgs e) { this.lstProcessList.View = View.Tile; }

        private void btnOK_Click(object sender, EventArgs e)
        {
            if (!(lstProcessList.SelectedItems.Count > 0)) return;
            this.SelectedPid = Convert.ToInt32(lstProcessList.SelectedItems[0].SubItems[1].Text);
            this.Close();
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.SelectedPid = -1;
            this.Close();
        }

        private void btnRefresh_Click(object sender, EventArgs e)
        {
            this.RefreshList();
        }

        private bool RefreshList()
        {
            lstProcessList.Items.Clear();
            this.plugin.Reload();
            // create a selection of PCSX2 processes
            List<ProcContainer> proc_list = plugin.ValidProcessesForPlugin;

            if (!(proc_list.Count > 0)) { //MessageBox.Show("Could not find any PCSX2 Processes.  Please start an instance of one."); 
                return false; }

            List<ListViewItem> items = new List<ListViewItem>();
            ImageList small_image_list = new ImageList();
            ImageList large_image_list = new ImageList();
            foreach (ProcContainer p in proc_list) { this.AddProcessItem(p, ref items, out small_image_list, out large_image_list); }
            lstProcessList.SmallImageList = small_image_list;
            lstProcessList.LargeImageList = large_image_list;
            this.lstProcessList.Items.AddRange(items.ToArray());
            return true;
        }

        private void AddProcessItem(ProcContainer p, ref  List<ListViewItem> items, out ImageList small_image_list, out ImageList large_image_list)
        {
            small_image_list = new ImageList();
            large_image_list = new ImageList();
            ListViewItem item = new ListViewItem();
            // process
            item.Text = p.ProcessInfo.MainModule.ModuleName;
            if (p.ProcessIcon != null)
            {
                Bitmap small_image = ProcContainer.CreateIconFromProcess(p.ProcessInfo, 1);
                Bitmap large_image = ProcContainer.CreateIconFromProcess(p.ProcessInfo, 2);
                small_image_list.Images.Add(p.ProcessInfo.MainModule.FileName, ProcContainer.CreateIconFromProcess(p.ProcessInfo, 1));
                small_image_list.ImageSize = new Size(small_image.Width, small_image.Height);
                large_image_list.Images.Add(p.ProcessInfo.MainModule.FileName, ProcContainer.CreateIconFromProcess(p.ProcessInfo, 2));
                large_image_list.ImageSize = new Size(large_image.Width, large_image.Height);
                item.ImageKey = p.ProcessInfo.MainModule.FileName;
            }
            // pid
            item.SubItems.Add(p.ProcessInfo.Id.ToString());
            // FullPath
            item.SubItems.Add(p.ProcessInfo.MainModule.FileName);
            if (!items.Contains(item)) items.Add(item);
        }
    }
}