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;
using System.IO;
using RomCheater.Logging;

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(string.Format("Could not find any Processes for plugin {0}.  Please start an instance of one.",plugin.ToString())); }
            else { if (owner == null) { base.Show(); } else { base.Show(owner); } }
        }
        private DialogResult PreInitDialog(IWin32Window owner)
        {
            if (!this.RefreshList()) { MessageBox.Show(string.Format("Could not find any Processes for plugin {0}.  Please start an instance of one.", plugin.ToString())); 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();

            int small_width = 32;
            int large_width = 48;

            small_image_list.ImageSize = new Size(small_width, small_width);
            large_image_list.ImageSize = new Size(large_width, large_width);
            foreach (ProcContainer p in proc_list) 
            {
                Bitmap small_image = null;
                Bitmap large_image = null;
                string image_key = string.Empty;
                this.AddProcessItem(p, small_image_list.ImageSize, large_image_list.ImageSize, out image_key, out small_image, out large_image);
                if (image_key != string.Empty)
                {
                    if (small_image != null) { small_image_list.Images.Add(image_key, small_image); }
                    if (large_image != null) { large_image_list.Images.Add(image_key, large_image); }
                    ListViewItem item = new ListViewItem();
                    // process name
                    item.Text = p.Name;
                    // pid
                    item.SubItems.Add(p.ProcessInfo.Id.ToString());
                    // FullPath
                    item.SubItems.Add(p.FileName);
                    // image key
                    item.ImageKey = p.FileName;
                    if (!items.Contains(item)) items.Add(item);
                }
                else
                {
                    logger.Error.Write("image_key is an empty string!");
                    if (small_image != null) { logger.Error.Write(" [however small_image is not null]"); }
                    if (large_image != null) { logger.Error.Write(" [however large_image is not null]\n"); }
                }
            }
            lstProcessList.SmallImageList = small_image_list;
            lstProcessList.LargeImageList = large_image_list;
            this.lstProcessList.Items.AddRange(items.ToArray());
            return true;
        }

        private void AddProcessItem(ProcContainer p, Size small, Size large, out string image_key, out Bitmap small_image, out Bitmap large_image)
        {
            image_key = "";
            small_image = null;
            large_image = null;
            ////small_image_list = new ImageList();
            ////large_image_list = new ImageList();
            //ListViewItem item = new ListViewItem();
            //// process
            //item.Text = p.Name;
            //if (p.ProcessIcon != null)
            //{   
            //    //small_image_list.Images.Add(
            //    //large_image_list.Images.Add(p.FileName, p.ProcessIcon);                
            //    item.ImageKey = p.FileName;
            //}
            //// pid
            //item.SubItems.Add(p.ProcessInfo.Id.ToString());
            //// FullPath
            //item.SubItems.Add(p.FileName);
            //if (!items.Contains(item)) items.Add(item);
            if (p != null)
            {
                if (p.ProcessIcon != null)
                {
                    image_key = p.FileName;
                    small_image = new Bitmap(p.ProcessIcon, small);
                    large_image = new Bitmap(p.ProcessIcon, large);
                }
            }

        }
    }
}