#include "main.h"
#include "dataops.h"
#include "fexists.h"
#include "verify.h"
#include "curse.h"
#include "listname.h"

#include <string.h>

//main
//
//This is the main function for the movie review file
//verification and review set program for cs2574.
//
//This funciton calls the other functions in this program
//to verify content and format for movie review system files
//and allows changes to be made to the loaded movie review set.
//
//called by:	system
//calls:		ShowStart
//				ShowHelp
//				DoWork
//				ShowEnd
//
//Params:		None
//
//Author:		Glenn Rioux
//
//Revisions:	none
//
//Version:		1.0
//
//

int main (int argc, char *argv[])
{

	//Initialize Curses and Menus
	InitCurses();
	InitMenus();

	//Update the display
	SUDS(1,1,1,1,1,1,1,0,0,0);
	UpdateDisplay();

	if(!Fexists("ccc.messages"))
	{
		SetMsgNum(32767);
		DisplayMessage();
		int temp = Response(JUST_ENTER, 1, "Please press 'ENTER' to exit this program.");
		return(-1);
	}

	ShowStart();

	if(argc > 1)
	{
		SetArgument(argv[1]);
		ReadMRS();
	}
	else
		SetArgument((char *)NULL);


	//This function is the "meat" of the program
	MainHandler();

	//forces proper shut down of curses
	ShutDownCurses();
	
	return(0);
}

//ShowStart
//
//This function describes the purpose of the program in a
//"splash screen" and provides the programmer's names and
//e-mail addresses.
//
//This funciton displays a few lines of text using the cout
//iostream.
//
//called by:	main
//calls:		DisplayFunctions
//
//Params:		None
//
//Author:		Glenn Rioux
//
//Revisions:	Glenn Rioux - Text change to reflect program changes
//
//Version:		1.5
//
//


void ShowStart(void)
{
	SetMsgNum(1);
	DisplayMessage();
	int temp = Response(JUST_ENTER, 1, "Please press 'ENTER' to continue.");
}


/**********************************************************************
 *
 *  Function:	MainHandler
 *  Input:		none
 *  Returns:    void
 *
 *  Description:
 *	Heart of the program.  Takes keystrokes and controls the activation
 *  of various aspects of the program
 *
 *  Variables:	register int key - the current keystroke
 *				cccmenuopts menuCode - data type for the menu activated
 *				mode currentMode - the current mode
 *				int selection  - current selected item
 *				int length - the length of the current list
 *				int winsel - currently selected item redux
 *				window active - the iowindow
 *				int temp1 -  used to hold temporary values
 *				int temp2 -  also used for useless stuff
 *				int msgMode - the current state of messaging
 *				bool inputMode - the current input mode
 *
 *  Called by:	main
 *
 *  Calls:      SetMsgNum
 *				GetDispParams
 *				GetMode
 *				SetMode
 *				GetMsgMode
 *				List
 *				ListMovie
 *				Execute
 *				MsgWinKeyOpts
 *				SUDS
 *				UpdateDisplay
 *				SetDispParams
 *				GetExit
 *				List
 *				ListMovie
 *
 *  Author:		Glenn Rioux
 *  Revisions:	
 *				
 *  Version:	2.0
 *
 *
 **********************************************************************/
void MainHandler(void)
{
	register int key;
	cccmenuopts menuCode = NONE;
	mode currentMode = NO_FILE;
	int selection = 0, length = 0, winsel = 0;
	window active = GetWindow(IOWIN);
	int temp1, temp2, msgMode = 0;
	bool inputMode = false, done = false;
		
	do
	{
		SetMsgNum(13);
		GetDispParams(winsel,temp1,temp2);
		touchwin(active);
		wrefresh(active);
		currentMode = GetMode();
		msgMode = GetMsgMode();

		key = wgetch(active);

		key = tolower(key);

		if((msgMode) && (key != F1_KEY))
		{
			MsgWinKeyOpts(key);
			if(menuCode != NONE)
			{
				SUDS(0,0,0,0,0,0,0,1,0,0);
				UpdateDisplay();
			}
		}

		if((!inputMode) && (!msgMode) && (menuCode != NONE)) 
		{	
			// if there is a menu pulled down, listen
			// for the ESCAPE, ENTER, and arrow keys
			
			switch(key)
			{
			case ENTER:
				SUDS(0,1,1,0,0,0,0,0,0,0);
				UpdateDisplay();
				Execute(menuCode,currentMode,selection);
				menuCode = NONE;
				currentMode=GetMode();
				SUDS(0,1,1,0,0,0,0,0,0,0);
				UpdateDisplay();
				if (GetExit())
					return;
				break;
				
			case UP_ARROW:
				DrawMenu(selection);
				selection = (selection-1);
				if(!selection)
					selection = length;
				DrawMenu(menuCode, selection);
				SUDS(0,0,0,0,0,0,0,1,0,0);
				UpdateDisplay();
				break;

			case DOWN_ARROW:
				DrawMenu(selection);
				selection = (selection+1);
				if(selection == (length+1))
					selection = FIRST;
				DrawMenu(menuCode, selection);
				SUDS(0,0,0,0,0,0,0,1,0,0);
				UpdateDisplay();
				break;

			case LEFT_ARROW:
				menuCode = (cccmenuopts((int)menuCode-1));
				if(menuCode == NONE)
				{
					menuCode = SRCH_MENU;
				}
				selection = FIRST;
				SUDS(0,1,1,0,0,0,0,1,0,0);
				UpdateDisplay(menuCode, selection, &length);
				break;

			case RIGHT_ARROW:
				if(menuCode == SRCH_MENU)
				{
					menuCode = NONE;
				}
				menuCode = (cccmenuopts((int)menuCode+1));
				selection = FIRST;
				SUDS(0,1,1,0,0,0,0,1,0,0);
				UpdateDisplay(menuCode, selection, &length);
				break;

			case ESCAPE:
				menuCode = NONE;
				SUDS(0,1,1,0,0,0,0,0,0,0);
				UpdateDisplay();
				key = NULL;
				break;

			case P_KEY:
			case F_KEY:
			case E_KEY:
			case C_KEY:
			case V_KEY:
			case S_KEY:
			case NULL:
			case CTRL_N_KEY:
			case CTRL_O_KEY:
			case CTRL_S_KEY:
			case CTRL_A_KEY:
			case CTRL_L_KEY:
			case CTRL_Q_KEY:
				break;
			
			default:
				beep();
			} // end switch

		}// end if
		else
		{
			if((!inputMode) && (!msgMode) && (menuCode == NONE) && 
			(key == UP_ARROW || 
			key == DOWN_ARROW || 
			key == PG_UP ||
			key == PG_DN || 
			key == HOME_KEY || 
			key == END_KEY || 
			key == ENTER || 
			key == ESCAPE))
			{
				switch(key)
				{
					case UP_ARROW:
						winsel--;
						
						switch(currentMode)
						{
						case 1:
							List(winsel);
							break;
						case 2:
							ListMovie(winsel);
							break;
						default:
							break;
						}
						GetDispParams(winsel,temp1,temp2);
						break;
					
					case DOWN_ARROW:
						winsel++;
						
						switch(currentMode)
						{
						case 1:
							List(winsel);
							break;
						case 2:
							ListMovie(winsel);
							break;
						default:
							break;
						}
						GetDispParams(winsel,temp1,temp2);
						break;

					case PG_UP/*339*/:
						winsel=winsel-20;
						SetDispParams(winsel, winsel, winsel+20);

						switch(currentMode)
						{
						case 1:
							List(winsel);
							break;
						case 2:
							ListMovie(winsel);
							break;
						default:
							break;
						}
						//add twenty to the display list
						GetDispParams(winsel,temp1,temp2);
						break;

					case PG_DN/*338*/:
						winsel=winsel+20;

						SetDispParams(winsel, winsel-20, winsel);
						switch(currentMode)
						{
						case 1:
							List(winsel);
							break;
						case 2:
							ListMovie(winsel);
							break;
						default:
							break;
						}
						//subtract twenty from the display list
						GetDispParams(winsel,temp1,temp2);
						break;

					case HOME_KEY/*262*/:
						winsel=0;
						SetDispParams(winsel,winsel, winsel+20);
						switch(currentMode)
						{
						case 1:
							List(winsel);
							break;
						case 2:
							ListMovie(winsel);
							break;
						default:
							break;
						}
						//set display list to zero
						GetDispParams(winsel,temp1,temp2);
						break;

					case END_KEY/*347*/:
						switch(currentMode)
						{
						case 1:
							winsel=GetMovieCounter()-1;
							SetDispParams(winsel,winsel-20, winsel);
							List(winsel);
							break;
						case 2:
							winsel=GetReviewNum();
							SetDispParams(winsel,winsel-20, winsel);
							ListMovie(winsel);
							break;
						default:
							break;
						}
						//set display list to max
						GetDispParams(winsel,temp1,temp2);
						break;

					case ENTER:
						switch(GetMode())
						{
						case 1:
							ListMovie(GetEntry(winsel));
							break;
						case 2:
							ViewFile();
						default:
							break;
						}
						break;
					case ESCAPE:
						switch(GetMode())
						{
						case 2:
							List(winsel);
							break;
						default:
							break;
						}
						break;
					}//switch

				SUDS(1,1,1,1,1,1,1,0,0,0);
				
			}//if
		}//else

		if((!inputMode) && (!msgMode) && 
			(key == P_KEY ||
			key == F_KEY ||
			key == E_KEY ||
			key == C_KEY ||
			key == V_KEY ||
			key == S_KEY))	// if a menu command key is pressed, set the 
							// menu code and update the screen.
		{
			switch(key)
			{
				case P_KEY:
					menuCode = PROG_MENU;
					break;

				case F_KEY:
					menuCode = FILE_MENU;
					break;

				case E_KEY:
					menuCode = EDIT_MENU;
					break;

				case C_KEY:
					menuCode = CCC_MENU;
					break;

				case V_KEY:
					menuCode = VIEW_MENU;
					break;

				case S_KEY:
					menuCode = SRCH_MENU;
					break;

				default:
					break;
			} // end case

			selection = FIRST;
			SUDS(0,1,1,0,0,0,0,1,0,0);
			key = SPACE;
			UpdateDisplay(menuCode, selection, &length);

		} // end if

		
		if(key == F1_KEY)
		{
			DisplayMessage();
		}

		if(key == F2_KEY)
		{
			SetMsgNum(-2);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F3_KEY)
		{
			SetMsgNum(-1);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F4_KEY)
		{
			SetMsgNum(1);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F5_KEY)
		{
			SetMsgNum(2);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F6_KEY)
		{
			SetMsgNum(3);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F7_KEY)
		{
			SetMsgNum(4);
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

		if(key == F9_KEY)
		{
			inputMode = true;
		}

		if(key == F10_KEY)
		{
			inputMode = false;
		}

		if((currentMode >= 1) &&
			((key == CTRL_N_KEY) ||
			(key == CTRL_O_KEY) ||
			(key == CTRL_S_KEY) ||
			(key == CTRL_A_KEY) ||
			(key == CTRL_L_KEY) ||
			(key == CTRL_Q_KEY)))
		{
			menuCode = FILE_MENU;

			switch(key)
			{
			case CTRL_N_KEY:
				selection = 1;
				break;

			case CTRL_O_KEY:
				selection = 2;
				break;

			case CTRL_S_KEY:
				selection = 3;
				break;

			case CTRL_A_KEY:
				selection = 4;
				break;

			case CTRL_L_KEY:
				selection = 5;
				break;

			case CTRL_Q_KEY:
				selection = 6;
				break;
			}

			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
			Execute(menuCode,currentMode,selection);
			menuCode = NONE;
			currentMode=GetMode();
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
			if (GetExit())
				return;
		}

		if((currentMode == 0) &&
			(key == CTRL_N_KEY) ||
			(key == CTRL_O_KEY) ||
			(key == CTRL_Q_KEY))
		{
			menuCode = FILE_MENU;

			switch(key)
			{
			case CTRL_N_KEY:
				selection = 1;
				break;

			case CTRL_O_KEY:
				selection = 2;
				break;

			case CTRL_Q_KEY:
				selection = 3;
				break;
			}

			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
			Execute(menuCode,currentMode,selection);
			menuCode = NONE;
			currentMode=GetMode();
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
			if (GetExit())
				return;
		}

		if(((currentMode == 1) || (currentMode == 2)) && 
			((key == INSERT_KEY) ||
			(key == DELETE_KEY)))
		{
			menuCode = CCC_MENU;

			switch(key)
			{
			case INSERT_KEY:
				selection = 1;
				break;

			case DELETE_KEY:
				selection = 2;
				break;
			}

			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
			Execute(menuCode,currentMode,selection);
			menuCode = NONE;
			currentMode=GetMode();
			SUDS(0,1,1,0,0,0,0,0,0,0);
			UpdateDisplay();
		}

	}while(!done);
}

/**********************************************************************
 *
 *  Function:	Category
 *  Input:		none
 *  Returns:    void
 *
 *  Description:
 *	Grabs info and sticks it to List.
 *
 *  Variables:	int winsel - currently selected item redux
 *				int temp1 -  used to hold temporary values
 *				int temp2 -  also used for useless stuff
 *
 *  Called by:	Add
 *				Delete
 *				ModFileTitle
 *				ModFileName
 *				
 *  Calls:      GetDispParams
 *				List
 *
 *  Author:		Tim McGaughey
 *  Revisions:	
 *				
 *  Version:	1.0
 *
 *
 **********************************************************************/
 void Category(void)
{
	int winsel, temp1, temp2;
	GetDispParams(winsel,temp1,temp2);
	List(winsel);
}

/**********************************************************************
 *
 *  Function:	Movie
 *  Input:		none
 *  Returns:    void
 *
 *  Description:
 *	Grabs info and uses it for ListMovie
 *
 *  Variables:	int winsel - currently selected item redux
 *				int temp1 -  used to hold temporary values
 *				int temp2 -  also used for useless stuff
 *				DLnkNodePtr TempPtr - holds selected node
 *
 *  Called by:	Add
 *				Delete
 *				ModFileTitle
 *				ModFileName
 *				ModStarRating
 *				ViewFile
 *
 *  Calls:      GetMode
 *				GetDispParams
 *				ListMovie
 *
 *  Author:		Tim McGaughey
 *  Revisions:	
 *				
 *  Version:	1.0
 *
 *
 **********************************************************************/
void Movie(void)
{
	if (GetMode()==1)
	{
		DLnkNodePtr TempPtr=GetSelNode();
		ListMovie(TempPtr);
	}
	else
	{
		int winsel, temp1, temp2;
		GetDispParams(winsel,temp1,temp2);
		ListMovie(winsel);
	}
}