/***********************************************************************************

 * CSCI 124 - ass2.cpp - Contains function definitions for pet database program

 * Gareth Woodorth- gw305

 * 29/8/12

 ***********************************************************************************/



#include <iostream>

#include <iomanip>

#include <fstream>

#include <cstdlib>

#include <cstring>

using namespace std;



// ============== Constants ==========================================



const char cDataFileName[] = "pets.txt";

const int cMaxRecs = 100;

const int cMaxChars = 30;





// ============= User Defined types ==================================



enum   StatusType{Lost,Found};

enum   PetType{Dog,Cat};

enum   GenderType{Male,Female,Unknown};

struct AgeType{ int Yrs; int Mths;}; // -1 if unknown



struct PetRecord{

	StatusType Status;           // Lost or Found

	PetType Type;                // Dog or Cat

	GenderType Gender;           // Male, Female or Unknown

	char Breed[cMaxChars];       // Bread of dog or cat. eg Bull terrier

	AgeType Age;                 // Age in years and mths. (-1 -1 if unknown)

	char Colour[cMaxChars];      // Colour of pet. eg tan

	char Location[cMaxChars];    // Suburb where found or lost. eg Mt Keira

	char PhoneNo[cMaxChars];     // Ph. of person to contact

};





// ============= Global Data =========================================



PetRecord *gPetRecs[cMaxRecs];

int gNumRecs=0;





// ============= Private Function Prototypes =========================



void DisplayRecord(int i); // Displays record i on screen

void lowercase(char str[]); // changes all strings to lowercase

void DeleteRecord(int i);





// ============= Public Function Definitions =========================



void ReadFile()

{

	ifstream fin;

	fin.open(cDataFileName);

	if (!fin.good()){

		cerr << "Could not open file!\n";

		exit(1);

	}

	gNumRecs=0;

	int i;

	for(i=0;i<cMaxRecs;i++){

		char Tmp[cMaxChars];

		fin >> Tmp;

		if(fin.fail())break;

		gPetRecs[i] = new PetRecord;

		switch(Tmp[0]){

			case'l': gPetRecs[i]->Status = Lost; break;

			case'f': gPetRecs[i]->Status = Found;break;

		}

		fin >> Tmp;

		switch(Tmp[0]){

			case'c': gPetRecs[i]->Type = Cat; break;

			case'd': gPetRecs[i]->Type = Dog; break;

		}

		fin >> Tmp;

		switch(Tmp[0]){

			case'm': gPetRecs[i]->Gender = Male;    break;

			case'f': gPetRecs[i]->Gender = Female;  break;

			default: gPetRecs[i]->Gender = Unknown; break;

		}

		fin.ignore(); //eat tailing '\n'

		fin.getline(gPetRecs[i]->Breed,cMaxChars);

		fin >> gPetRecs[i]->Age.Yrs>>gPetRecs[i]->Age.Mths;

		fin.ignore(); //eat tailing '\n'

		fin.getline(gPetRecs[i]->Colour,cMaxChars);

		fin.getline(gPetRecs[i]->Location,cMaxChars);

		fin.getline(gPetRecs[i]->PhoneNo,cMaxChars);

	}

	gNumRecs=i;

	fin.close();

	cout<< "\nThere are "<< gNumRecs <<" records in the Lost and Found Pet Database\n";

}



void DisplayRecs()

{// Displays records one at a time

	for(int i=0;i<gNumRecs;i++){

		DisplayRecord(i);

		cout<<"Display next record (y/n)> ";

		char Ans;

		cin>>Ans;

		cout<<endl;

		if(Ans=='n') return;

	}

}



void AddRecord()

{// Adds a new record to data file

	int i = gNumRecs;

	gPetRecs[i] = new PetRecord;

	char temp;



	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

	cout << "+" << setfill(' ')<<setw(38)<< " Add Record to Database" << setfill(' ') <<setw(16) << "+" << endl;

	cout << "+" << setfill(' ')<<setw(40)<<" (Enter your pets details)" << setfill(' ') <<setw(14) << "+" << endl;

	cout << "+" << setfill(' ')<<setw(45)<<" (Enter ? or -1 if detail is unknown)" << setfill(' ') <<setw(9) << "+" << endl;

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

	cout <<"Is the pet lost or found? (l/f) =>";

	cin >> temp;

	switch(temp)

	{

		case 'l': gPetRecs[i]->Status = Lost;break;

		case 'f': gPetRecs[i]->Status = Found;break;

		default: cout << " incorrect status";

	}



	cout <<"Is the pet a dog or cat? (d/c) =>";

	cin >> temp;

	switch(temp)

	{

		case'c': gPetRecs[i]->Type = Cat; break;

		case'd': gPetRecs[i]->Type = Dog; break;

		default: cout << " incorrect type";

	}

	cout <<"What is the gender of the pet (m/f) =>";

	cin >> temp;

	switch(temp)

	{

		case'm': gPetRecs[i]->Gender = Male;    break;

		case'f': gPetRecs[i]->Gender = Female;  break;

		default: gPetRecs[i]->Gender = Unknown; break;

	}



	cout <<"What breed is the pet? =>";

	cin.ignore();

	cin.getline(gPetRecs[i]->Breed,cMaxChars, '\n');

	lowercase(gPetRecs[i]->Breed);

	cout <<"What age is the pet? (yy mm ) =>";

	cin >> gPetRecs[i]->Age.Yrs>>gPetRecs[i]->Age.Mths;

	cout <<"What colour is the pet? =>";

	cin.ignore();

	cin.getline(gPetRecs[i]->Colour,cMaxChars, '\n');

	lowercase(gPetRecs[i]->Colour);

	cout <<"In what suburb was the pet lost? =>";

	cin.getline(gPetRecs[i]->Location,cMaxChars, '\n');

	lowercase(gPetRecs[i]->Location);

	cout <<"What is your phone number? =>";

	cin.getline(gPetRecs[i]->PhoneNo,cMaxChars, '\n');

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

	cout <<"+" << setfill(' ')<<setw(48)<<"A new record has been added to the database"<< setfill(' ') <<setw(6) <<"+" <<endl;

	cout <<"+" << setfill(' ')<<setw(10)<< gNumRecs <<" records are in the database"<< setfill(' ') << setw(16) <<"+"<<endl;

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<endl;



	ofstream fout;

	fout.open(cDataFileName, ios::app);

	switch(gPetRecs[i]->Status)

	{

		case Lost: fout << "lost" << endl;break;

		case Found: fout << "found" << endl;break;

	}



	switch(gPetRecs[i]->Type)

	{

		case Cat: fout << "Cat" << endl;break;

		case Dog: fout << "Dog" << endl;break;

	}



	switch(gPetRecs[i]->Gender)

	{

		case Male: fout << "Male" << endl;break;

		case Female: fout << "Female" << endl;break;

		case Unknown: fout << "Unknown" << endl;break;

	}



	fout << gPetRecs[i]->Breed << endl;

	fout << gPetRecs[i]->Age.Yrs << " " << gPetRecs[i]->Age.Mths << endl;

	fout << gPetRecs[i]->Colour << endl;

	fout << gPetRecs[i]->Location << endl;

	fout << gPetRecs[i]->PhoneNo << endl;

}





void lowercase(char string[]) {

for(int i = 0; string[i]; i++)

  		string[i] = tolower(string[i]);

}



void SearchArray()

{



	char temp;

	PetRecord searchdetails;

	bool search;

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

	cout << "+" << setfill(' ')<<setw(35)<< " Search Database" << setfill(' ') <<setw(19) << "+" << endl;

	cout << "+" << setfill(' ')<<setw(40)<<" (Enter your pets details)" << setfill(' ') <<setw(14) << "+" << endl;

	cout << "+" << setfill(' ')<<setw(45)<<" (Enter ? or -1 if detail is unknown)" << setfill(' ') <<setw(9) << "+" << endl;

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;



		cout << "search lost or found pets(l/f)=>";

		cin >> temp;

		switch(temp)

		{

			case'l': searchdetails.Status = Lost; break;

			case'f': searchdetails.Status = Found;break;

		}



		cout << " search for cat or dog (c/d)=>";

		cin >> temp;

		switch(temp)

		{

			case'c': searchdetails.Type = Cat; break;

			case'd': searchdetails.Type = Dog; break;

		}

		cout << " search for a gender =>";

		cin >> temp;

		switch(temp)

		{

			case'm': searchdetails.Gender = Male;    break;

			case'f': searchdetails.Gender = Female;  break;

			default: searchdetails.Gender = Unknown; break;

		}



		cin.ignore();



		cout <<"What breed to search for? =>";

		cin.ignore();

		cin.getline(searchdetails.Breed,cMaxChars,'\n');

		lowercase(searchdetails.Breed);



		cout <<"What age to search for? (yy mm ) =>";

		cin >> searchdetails.Age.Yrs >> searchdetails.Age.Mths;

		cin.ignore();



		cout <<"What colour to search for? =>";

		cin.getline(searchdetails.Colour,cMaxChars, '\n');

		lowercase(searchdetails.Colour);



		cout <<"In what suburb was the pet lost? =>";

		cin.getline(searchdetails.Location,cMaxChars, '\n');

		lowercase(searchdetails.Location);





		for ( int i = 0; i < gNumRecs; i++)

		{

			search = true;

			if ( searchdetails.Status!= gPetRecs[i]->Status) search =false;



			if ( searchdetails.Type!= gPetRecs[i]->Type) search = false;



			switch(searchdetails.Gender){

				case Unknown: break;

				default: if(searchdetails.Gender != gPetRecs[i]->Gender){

							search = false;

						}

			}



			switch(searchdetails.Breed[0]){

				case '?': break;

				default: if(strcmp(gPetRecs[i]->Breed, searchdetails.Breed) !=0){

							search = false;

						}

			}



			switch(searchdetails.Age.Yrs){

				case -1: break;

				default: if(gPetRecs[i]->Age.Yrs != searchdetails.Age.Yrs){

							search = false;

						}

			}





			switch(searchdetails.Age.Mths){

				case -1: break;

				default: if(gPetRecs[i]->Age.Mths != searchdetails.Age.Mths){

							search = false;

						}

			}



			switch(searchdetails.Colour[0]){

				case '?': break;

				default: if(strcmp(gPetRecs[i]->Colour, searchdetails.Colour) !=0){

							search = false;

						}

			}



			switch(searchdetails.Location[0]){

				case '?': break;

				default: if(strcmp(gPetRecs[i]->Location, searchdetails.Location) !=0){

							search = false;

						}

			}



				for ( int i =0; i < gNumRecs;i++)

					if(search == false)

						DeleteRecord(i);





		}



	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl;

	cout <<"+" << setfill(' ')<<setw(42)<<"There are" << gNumRecs << "pets in the database"<< setfill(' ') <<setw(12)<<"+"<<endl;

	cout <<"+" << setfill(' ')<<setw(42)<< "that match the search criteria"<< setfill(' ') << setw(12) <<"+"<<endl;

	cout <<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<endl;







}



void CleanUp()

{// Deletes all dynamic data in gPetRecs array



}



// ============= Private Functions Definitions =========================



void DeleteRecord(int RecordNum)

{

	for( int i = RecordNum; i < gNumRecs; i++)

			gPetRecs[i] = gPetRecs[i+1];



		gNumRecs--;

}





void DisplayRecord(int i)

{// Displays record i on screen

	cout<<"Status:        ";

	switch(gPetRecs[i]->Status){

		case Lost:  cout << "lost\n"; break;

		case Found: cout << "found\n";break;

	}

	cout<<"Type  :        ";

	switch(gPetRecs[i]->Type){

		case Cat: cout << "cat\n";break;

		case Dog: cout << "dog\n";break;

	}

	cout<<"Gender:        ";

	switch(gPetRecs[i]->Gender){

		case Male:   cout << "male\n";  break;

		case Female: cout << "female\n";break;

		default: cout << "unknown\n";break;

	}

	cout<<"Breed:         "<<gPetRecs[i]->Breed<<endl;

	cout<<"Age:           "<<gPetRecs[i]->Age.Yrs<<" Yrs "<<gPetRecs[i]->Age.Mths<<" Mths\n";

	cout<<"Colour:        "<<gPetRecs[i]->Colour<<endl;

	cout<<"Location:      "<<gPetRecs[i]->Location<<endl;

	cout<<"Phone No:      "<<gPetRecs[i]->PhoneNo<<endl;

}