/*
** conversationmenu.txt
** The Strife dialogue display
**
**---------------------------------------------------------------------------
** Copyright 2010-2017 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/

struct StrifeDialogueNode native 
{
	native Class<Actor> DropType;
	native int ThisNodeNum;
	native int ItemCheckNode;

	native Class<Actor> SpeakerType;
	native String SpeakerName;
	native Sound SpeakerVoice;
	native TextureID Backdrop;
	native String Dialogue;
	native String Goodbye;

	native StrifeDialogueReply Children;
}

// FStrifeDialogueReply holds responses the player can give to the NPC
struct StrifeDialogueReply native
{
	native StrifeDialogueReply Next;
	native Class<Actor> GiveType;
	native int ActionSpecial;
	native int Args[5];
	native int PrintAmount;
	native String Reply;
	native String QuickYes;
	native String QuickNo;
	native String LogString;
	native int NextNode;	// index into StrifeDialogues
	native int LogNumber;
	native bool NeedsGold;
}


class ConversationMenu : Menu native
{
	native String mSpeaker;
	native BrokenLines mDialogueLines;
	native Array<String> mResponseLines;
	native Array<uint> mResponses;
	native bool mShowGold;
	native StrifeDialogueNode mCurNode;
	native int mYpos;
	native PlayerInfo mPlayer;
	native int mSelection;
	
	//ConversationPauseTic = gametic + 20;

	//============================================================================
	//
	// Draw the backdrop, returns true if the text background should be dimmed
	//
	//============================================================================

	virtual bool DrawBackdrop()
	{
		if (mCurNode.Backdrop.isValid())
		{
			screen.DrawTexture(mCurNode.Backdrop, false, 0, 0, DTA_320x200, true);
			return false;
		}
		return true;
	}

	//============================================================================
	//
	// Draw the speaker text
	//
	//============================================================================

	virtual void DrawSpeakerText(bool dimbg)
	{
		String speakerName;
		int linesize = OptionMenuSettings.mLinespacing * CleanYfac;
		int cnt = mDialogueLines.Count();

		// Who is talking to you?
		if (mCurNode.SpeakerName.Length() > 0)
		{
			speakerName = Stringtable.Localize(mCurNode.SpeakerName);
		}
		else
		{
			speakerName = players[consoleplayer].ConversationNPC.GetTag("Person");
		}

		
		// Dim the screen behind the dialogue (but only if there is no backdrop).
		if (dimbg)
		{
			int x = 14 * screen.GetWidth() / 320;
			int y = 13 * screen.GetHeight() / 200;
			int w = 294 * screen.GetWidth() / 320;
			int h = linesize * cnt + 6 * CleanYfac;
			if (speakerName.Length() > 0) h += linesize * 3 / 2;
			screen.Dim(0, 0.45f, x, y, w, h);
		}

		int x = 16 * screen.GetWidth() / 320;
		int y = 16 * screen.GetHeight() / 200;

		if (speakerName.Length() > 0)
		{
			screen.DrawText(SmallFont, Font.CR_WHITE, x, y, speakerName, DTA_CleanNoMove, true);
			y += linesize * 3 / 2;
		}
		x = 24 * screen.GetWidth() / 320;
		for (int i = 0; i < cnt; ++i)
		{
			screen.DrawText(SmallFont, Font.CR_UNTRANSLATED, x, y, mDialogueLines.StringAt(i), DTA_CleanNoMove, true);
			y += linesize;
		}
	}


	//============================================================================
	//
	// Draw the replies
	//
	//============================================================================

	virtual void DrawReplies()
	{
		// Dim the screen behind the PC's choices.
		screen.Dim(0, 0.45, (24 - 160) * CleanXfac + screen.GetWidth() / 2, (mYpos - 2 - 100) * CleanYfac + screen.GetHeight() / 2,
			272 * CleanXfac, MIN(mResponseLines.Size() * OptionMenuSettings.mLinespacing + 4, 200 - mYpos) * CleanYfac);

		int y = mYpos;
		int fontheight = OptionMenuSettings.mLinespacing;

		int response = 0;
		for (int i = 0; i < mResponseLines.Size(); i++)
		{
			int width = SmallFont.StringWidth(mResponseLines[i]);
			int x = 64;

			screen.DrawText(SmallFont, Font.CR_GREEN, x, y, mResponseLines[i], DTA_Clean, true);

			if (i == mResponses[response])
			{
				String tbuf;

				response++;
				tbuf = String.Format("%d.", response);
				x = 50 - SmallFont.StringWidth(tbuf);
				screen.DrawText(SmallFont, Font.CR_GREY, x, y, tbuf, DTA_Clean, true);

				if (response == mSelection + 1)
				{
					int colr = ((MenuTime() % 8) < 4) || GetCurrentMenu() != self ? Font.CR_RED : Font.CR_GREY;

					x = (50 + 3 - 160) * CleanXfac + screen.GetWidth() / 2;
					int yy = (y + fontheight / 2 - 5 - 100) * CleanYfac + screen.GetHeight() / 2;
					screen.DrawText(ConFont, colr, x, yy, "\xd", DTA_CellX, 8 * CleanXfac, DTA_CellY, 8 * CleanYfac);
				}
			}
			y += fontheight;
		}
	}

	virtual void DrawGold()
	{
		if (mShowGold)
		{
			let coin = players[consoleplayer].ConversationPC.FindInventory("Coin");
			let icon = GetDefaultByType("Coin").Icon;
			let goldstr = String.Format("%d", coin != NULL ? coin.Amount : 0);
			screen.DrawText(SmallFont, Font.CR_GRAY, 21, 191, goldstr, DTA_320x200, true, DTA_FillColor, 0, DTA_Alpha, HR_SHADOW);
			screen.DrawTexture(icon, false, 3, 190, DTA_320x200, true, DTA_FillColor, 0, DTA_Alpha, HR_SHADOW);
			screen.DrawText(SmallFont, Font.CR_GRAY, 20, 190, goldstr, DTA_320x200, true);
			screen.DrawTexture(icon, false, 2, 189, DTA_320x200, true);
		}

	}

	//============================================================================
	//
	// DrawConversationMenu
	//
	//============================================================================

	override void Drawer()
	{
		if (mCurNode == NULL)
		{
			Close ();
			return;
		}

		bool dimbg = DrawBackdrop();
		DrawSpeakerText(dimbg);
		DrawReplies();
		DrawGold();
	}
	
	
	//============================================================================
	//
	//
	//
	//============================================================================

	override void Ticker()
	{
		// will be reactivated later.
		// [CW] Freeze the game depending on MAPINFO options.
		//if (ConversationPauseTic < gametic && !multiplayer && !level.no_dlg_freeze)
		{
			menuactive = Menu.On;
		}
	}
	
}