#region ================== Namespaces

using System.Collections.Generic;
using System.Windows.Forms;
using CodeImp.DoomBuilder.Map;

#endregion

namespace CodeImp.DoomBuilder.BuilderModes.FindReplace
{
	[FindReplace("Sector Height (Ceiling)", BrowseButton = false)]
	internal class FindSectorCeilingHeight : BaseFindSector
	{
		#region ================== Methods

		// This is called to perform a search (and replace)
		// Returns a list of items to show in the results list
		// replacewith is null when not replacing
		public override FindReplaceObject[] Find(string value, bool withinselection, bool replace, string replacewith, bool keepselection) 
		{
			List<FindReplaceObject> objs = new List<FindReplaceObject>();

			// Interpret the replacement
			int replaceheight = 0;
			if(replace) 
			{
				// If it cannot be interpreted, set replacewith to null (not replacing at all)
				if(!int.TryParse(replacewith, out replaceheight)) replacewith = null;
				if(replacewith == null) 
				{
					MessageBox.Show("Invalid replace value for this search type!", "Find and Replace", MessageBoxButtons.OK, MessageBoxIcon.Error);
					return objs.ToArray();
				}
			}

			// Interpret the number given
			int height;
			if(int.TryParse(value, out height)) 
			{
				// Where to search?
				ICollection<Sector> list = withinselection ? General.Map.Map.GetSelectedSectors(true) : General.Map.Map.Sectors;

				// Go for all sectors
				foreach(Sector s in list) 
				{
					// Height matches?
					if(s.CeilHeight == height) 
					{
						// Replace
						if(replace) s.CeilHeight = replaceheight;

						objs.Add(new FindReplaceObject(s, "Sector " + s.Index));
					}
				}
			}

			//refresh map
			if(replace) 
			{
				General.Map.Map.Update();
				General.Map.IsChanged = true;
			}

			return objs.ToArray();
		}

		#endregion
	}
}
