#include "make message.h"


void main(void)
{
	messageLine lineOfData;
	short lineIndex, middle, longest, maxLen, testLen, loop,
		highError, highHelp, clearing;
	winMsgLine array[MAXNUMMESWINLINES] = {NULL};
	int winLength = 0, winWidth[2] = {NULL}, looping = 0;
	
	lineIndex = 0;
	testLen = 0;
	
	ifstream sourceText("message.source");
	fstream messageFile;

	do
	{
		lineIndex++;

		sourceText >> lineOfData.messageNo;
		sourceText.get();
		sourceText >> lineOfData.helpCode;
		sourceText.get();
		sourceText >> lineOfData.width;
		sourceText.get();
		sourceText.getline(lineOfData.holdLine, 3000);

		if(lineOfData.messageNo == NULL)
			break;

		if(lineIndex == 1)
			highError = lineOfData.messageNo;

		testLen = (strlen(lineOfData.holdLine));
		if(testLen > longest)
			longest = testLen;
		
		if(lineOfData.messageNo == 32767)
		{
			middle = lineIndex;
		}
		
	}while(!sourceText.eof());

	highHelp = lineOfData.messageNo;
	maxLen = longest + (sizeof(short)*3);

	sourceText.close();

	if(longest > 3000)
	{
		cls();

		cout << endl << "\tThere appear to be more characters in the input string"
			 << endl << "\tthan this program was designed to handle"
			 << endl
			 << endl << "\tPlease check to insure that your input file has"
			 << endl << "\tlines of (one) identifying integer, (one) help ID"
			 << endl << "\tand a string of up to (3000) characters."
			 << endl 
			 << endl << "\tPlease press 'Return' to continue. ";
		cin.get();

		exit(1);
	} //end if

	lineIndex -= 1;

	sourceText.open("message.source");
	messageFile.open("ccc.messages",ios::out | ios::binary);
	messageFile.seekg(0, ios::beg);

	messageFile.write((char *)&maxLen, 8);
	messageFile.write((char *)&middle, 4);
	messageFile.write((char *)&highError, 4);
	messageFile.write((char *)&highHelp, 4);


	for(loop = 1;loop <= lineIndex;loop++)
	{
		for(clearing = 0; clearing < MAXMSGLINE; clearing++)
			lineOfData.holdLine[clearing] = NULL;
		sourceText >> lineOfData.messageNo;
		sourceText.get();
		sourceText >> lineOfData.helpCode;
		sourceText.get();
		sourceText >> lineOfData.width;
		sourceText.get();
		sourceText.getline(lineOfData.holdLine, 3000);
		messageFile.write((char *)&lineOfData,maxLen);
	}

	messageFile.close();
	sourceText.close();

	maxLen = middle = highError = highHelp = 0;


//from this point, it's for testing purposes.

	messageFile.open("ccc.messages",ios::in | ios::binary);
	messageFile.seekg(0, ios::beg);

	messageFile.read((char *)&maxLen, 8);
	messageFile.read((char *)&middle, 4);
	messageFile.read((char *)&highError, 4);
	messageFile.read((char *)&highHelp, 4);

	cls();
	cout << endl << "\tThe length of the longest line = " << longest
		 << endl << "\tThe 'middle' line# = " << middle
		 << endl << "\tThe largest Error Value = " << highError
		 << endl << "\tThe largest Help Value = " << highHelp
		 << endl;

	messageFile.close();

	cout << endl << endl << "\tPress a key to continue. ";
	cin.get();

	int number = 1;
	int middleByte;

	while(number)
	{
		cls();
		cout << endl << "\tNow is the time to test the random access part!"
			 << endl
			 << endl << "\tPlease type the Message Number of the desired message"
			 << endl << "\t(valid ones, Tim! :)"
			 << endl << "\tor enter '999999' to exit ";

		cin >> number;
		if(number==999999)
		{
			cout << endl << "\t";
			exit(0);
		}

		cin.get();

		if((number >= highError) && (number <= highHelp))
		{
			messageFile.open("ccc.messages",ios::in | ios::binary);
			messageFile.seekg(0, ios::beg);

			messageFile.read((char *)&maxLen, 8);
			messageFile.read((char *)&middle, 4);
			messageFile.read((char *)&highError, 4);
			messageFile.read((char *)&highHelp, 4);

			middleByte = (maxLen*(middle-1))+20;
			
			messageFile.seekg(middleByte, ios::beg);
			messageFile.seekg((maxLen*(number)), ios::cur);

			messageFile.read((char *)&lineOfData,maxLen);
			
			messageFile.close();

			winWidth[0] = (int)lineOfData.width;

			winLength = FormatWindow(lineOfData.holdLine, array, winWidth);

			lineOfData.width = (short)winWidth[0];

			cls();
			cout << endl << "\tFor line #" << lineOfData.messageNo
				 << ", we have a help line value of " << lineOfData.helpCode
				 << ", " << endl << "\ta width value of " << lineOfData.width
				 << ", " << endl << "\tand a text message of : " << endl;
			for(looping = 1; looping <= winLength; looping++)
			{
				cout << "\t" << array[looping] << endl;
			}
			cout << endl << endl << "\tPress 'Return' to continue. ";
			cin.get();
		}
	}
}




		



void cls(void)
{
	system("cls");
}


int FormatWindow(char * string, winMsgLine array[], int * width)
{
	char * tempptr = string;
	
	int stringlen = strlen(string);
	int looping = 1, terminator = 0, endWidth = 0, innerLoop = 0,
		middle = 0, tempLoop = 0;
	bool done = false, newLine = false, center = false;
	winMsgLine tempLine = {NULL};
	char * charptr = NULL;
	
	do{
		strncpy(array[looping], tempptr, *width);
		
		for(innerLoop = 0; ((innerLoop < *width) && (!done)) && (!newLine); 
		innerLoop++)
		{
			terminator++;
			if(*tempptr == '~')  // new line
			{
				array[looping][innerLoop] = 32;
				newLine = true;
			}
			if(*tempptr == '^')  //center the line
			{
				array[looping][innerLoop] = 32;
				center = true;
			}
			tempptr++;
			if(*tempptr == NULL)
				done = true;
		}

		if(center)
		{
			array[looping][terminator] = NULL;
			strncpy(tempLine, array[looping], terminator);
			tempLine[(terminator + 1)] = NULL;
			middle = ((int)((*width - terminator) / 2));
			for(tempLoop = 0; tempLoop < middle; tempLoop++)
				array[looping][tempLoop] = 32;
			charptr = &array[looping][tempLoop];
			strcpy(charptr, tempLine);
			terminator += middle;
			center = false;
		}

		
		if(!done)
		{
			while((*tempptr != 32) && (*tempptr != NULL) && (*tempptr != '~'))
			{
				tempptr--;
				terminator--;
			}
		}

		array[looping][terminator] = NULL;
		terminator++;
		if(terminator > endWidth)
			endWidth = terminator;
		terminator = 0;

		looping++;
		tempptr++;
		newLine = false;
		
	}while(tempptr-string < stringlen);

	looping--;

	*width = endWidth;
	return(looping);
}