#include <iostream>
#include <fstream>
#include "position.h"


using namespace std;
struct Etudiant {
	int Numero;
	char Nom[20];
	char Telephone[15];
	int Matiere;
	float Note;
} Etud[30];

int curr = 0;
int total = 30;
int rechercherEtudiant();
void afficherMeilleurEtudiant();
int modifierNote(int index);
int supprimerEtudiant(int index);
int afficherEtudiant(int index);
int ajouterEtudiant();
void afficherParNote();
void MenuMAJEtudiants();
void MenuRecherchesListes();
void MenuGestionEtudiants();

// DEBUT DE LA SECTION DES MENUS
void retournerMenu(int menu) {
	switch (menu) {
		case 1:
			MenuGestionEtudiants();
			break;
		case 2:
			MenuMAJEtudiants();
			break;
		case 3:
			MenuRecherchesListes();
			break;
	}
}

void MenuGestionEtudiants() {
	int res;
	effacerEcran();
	gotoXY(10,1);	cout << "*******************************";
	gotoXY(10,2);	cout << "*\tGestion des Etudiants\t*";
	gotoXY(10,3);	cout << "*******************************";
	gotoXY(1,5);	cout << "1-\tMise a jour des etudiants";
	gotoXY(1,6);	cout << "2-\tRecherches et listes";
	gotoXY(1,7);	cout << "3-\tSauvegarde sur fichier";
	gotoXY(1,8);	cout << "4-\tChargement de structures";
	gotoXY(1,9);	cout << "5-\tFin";
	do {
		gotoXY(1,10);	cout << "Entrez un numero: ...";
		gotoXY(19,10);	cin >> res;
	}
	while (res < 1 || res > 5);
	switch (res) {
		case 1:
			MenuMAJEtudiants();
			break;
		case 2:
			MenuRecherchesListes();
			break;
		case 3:
			break;
		case 4:
			break;
		case 5:
			break;
	}
}
void MenuMAJEtudiants() {
	int res, i;
	effacerEcran();
	gotoXY(10,1);	cout << "************************************";
	gotoXY(10,2);	cout << "*\tMise a jour des Etudiants    *";
	gotoXY(10,3);	cout << "************************************";
	gotoXY(1,5);	cout << "1-\tAjout d'un nouvel etudiant";
	gotoXY(1,6);	cout << "2-\tModification de la note d'un etudiant";
	gotoXY(1,7);	cout << "3-\tSuppression d'un etudiant";
	gotoXY(1,8);	cout << "4-\tRetour au menu precedent";
	gotoXY(1,9);	cout << "5-\tFin";
	do {
		gotoXY(1,10);	cout << "Entrez un numero: ...";
		gotoXY(19,10);	cin >> res;
	}
	while (res < 1 || res > 5);
	switch (res) {
		case 1:
			do {
			i = ajouterEtudiant();
			}
			while (i != -2);
			retournerMenu(2);
			break;
		case 2:
			do {
				i = rechercherEtudiant();
				if (i > -1)
				{
					i = modifierNote(i);
				}
			}
			while (i != -2);
			retournerMenu(2);
			break;
		case 3:
			do {
				i = rechercherEtudiant();
				if (i > -1)
				{
					i = supprimerEtudiant(i);
					cout << i;
				}
			}
			while (i != -2);
			retournerMenu(2);
			break;
		case 4:
			retournerMenu(1);
			break;
		case 5:
			break;
	}
}
void MenuRecherchesListes() {
	int res, i;
	effacerEcran();
	gotoXY(10,1);	cout << "*******************************";
	gotoXY(10,2);	cout << "*\tRecherches et Listes    *";
	gotoXY(10,3);	cout << "*******************************";
	gotoXY(1,5);	cout << "1-\tAfficher un etudiant selon son numero";
	gotoXY(1,6);	cout << "2-\tAfficher le meilleur etudiant";
	gotoXY(1,7);	cout << "3-\tAfficher tous les etudiants par ordre de note";
	gotoXY(1,8);	cout << "4-\tRetour au menu precedent";
	gotoXY(1,9);	cout << "5-\tFin";
	do {
		gotoXY(1,10);	cout << "Entrez un numero: ...";
		gotoXY(19,10);	cin >> res;
	}
	while (res < 1 || res > 5);
	switch (res) {
		case 1:
			do {
				i = rechercherEtudiant();
				if (i > -1)
				{
					i = afficherEtudiant(i);
					cout << i;
				}
			}
			while (i != -2);
			retournerMenu(3);
			break;
		case 2:
			afficherMeilleurEtudiant();
			retournerMenu(3);
			break;
		case 3:
			afficherParNote();
			retournerMenu(3);
			break;
		case 4:
			MenuGestionEtudiants();
			break;
		case 5:
			break;
	}
}

int modifierNote(int index);
// FIN DE LA SECTION DES MENUS
// DEBUT DU MENU MISES-A-JOUR
int modifierNote(int index) {
	float tempNMatiere;
	// Variable temporaire pour ne pas ecraser la note initiale sans confirmation
	int position;
	char res;
	effacerEcran();
	gotoXY(10,1);	cout << "************************************************";
	gotoXY(10,2);	cout << "*\tModification de la note d'un Etudiant\t   *";
	gotoXY(10,3);	cout << "************************************************";
	gotoXY(2,5);	cout << "Numero: ....................................";
	gotoXY(10,5);	cout << Etud[index].Numero;
	gotoXY(2,6);	cout << "Nom: .......................................";
	gotoXY(7,6);	cout << Etud[index].Nom;
	gotoXY(2,7);	cout << "Telephone: .................................";
	gotoXY(13,7);	cout << Etud[index].Telephone;
	gotoXY(2,8);	cout << "Code Matiere: ..............................";
	gotoXY(16,8);	cout << Etud[index].Matiere;
	gotoXY(2,9);	cout << "Note Matiere: ..............................";
	gotoXY(16,9);	cout << Etud[index].Note;
	gotoXY(2,10);	cout << "Description Matiere: .......................";
	gotoXY(23,10);	
	if (Etud[index].Matiere == 1) // Affiche le nom equivalent au numero de la matiere (description)
		cout << "SQL";
	else if (Etud[index].Matiere == 2)
		cout << "PL-SQL";
	else if (Etud[index].Matiere == 3)
		cout << "JAVA";
	else if (Etud[index].Matiere == 4)
		cout << "VB.NET";
	else if (Etud[index].Matiere == 5)
		cout << "C++";
	else if (Etud[index].Matiere == 6)
		cout << "LINUX";
	gotoXY(16,9);	cin >> tempNMatiere;
	position = 12;	
	do	// Confirme la modification
	{
		gotoXY(1,position);	cout << "Etes vous sur de vouloir changer la note de " << 
			Etud[index].Note << " a " << tempNMatiere << "? (O/N) ";
		cin >> res;
		position++;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res != 'O' || res != 'o') Etud[index].Note = tempNMatiere;
	do { // Demande si l'usager veut faire d'autre modifs
		gotoXY(1,position); cout << "Voulez vous faire des modifications a d'autres notes? (O/N) ";
		cin >> res;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'O' || res == 'o') return -1; // -1 si on veut faire d'autres modifs --> rechercherEtudiant()
	return -2;	// -2 si on ne veut pas faire d'autres modifs --> MenuMAJEtudiants()
}
int ajouterEtudiant() {
	char res;
	int position;
	int tempNumero, tempCMatiere;
	float tempNMatiere;
	char tempNom[20], tempTelephone[15], tempDMatiere[30];
	// Variables temporaires pour ne pas ecrire sans confirmation
	effacerEcran();
	gotoXY(10,1);	cout << "*******************************" << endl;
	gotoXY(10,2);	cout << "*\tAjout d'un Etudiant\t*" << endl;
	gotoXY(10,3);	cout << "*******************************" << endl;
	gotoXY(2,5);	cout << "Numero: ....................................";
	gotoXY(2,6);	cout << "Nom: .......................................";
	gotoXY(2,7);	cout << "Telephone: .................................";
	gotoXY(2,8);	cout << "Code Matiere: ..............................";
	gotoXY(2,9);	cout << "Note Matiere: ..............................";
	gotoXY(2,10);	cout << "Description Matiere: .......................";
	gotoXY(10,5);	cin >> tempNumero;
	gotoXY(7,6);	cin >> tempNom;
	gotoXY(13,7);	cin >> tempTelephone;
	do {
		gotoXY(16,8);	cin >> tempCMatiere; 
	}
	while (tempCMatiere < 1 || tempCMatiere > 6); 
	if (tempCMatiere == 1) // Affiche le nom equivalent au numero de la matiere (description)
		strncpy_s(tempDMatiere, "SQL", _TRUNCATE);
	else if (tempCMatiere == 2)
		strncpy_s(tempDMatiere, "PL-SQL", _TRUNCATE);
	else if (tempCMatiere == 3)
		strncpy_s(tempDMatiere, "JAVA", _TRUNCATE);
	else if (tempCMatiere == 4)
		strncpy_s(tempDMatiere, "VB.NET", _TRUNCATE);
	else if (tempCMatiere == 5)
		strncpy_s(tempDMatiere, "C++", _TRUNCATE);
	else if (tempCMatiere == 6)
		strncpy_s(tempDMatiere, "LINUX", _TRUNCATE);
	gotoXY(23,10);	cout << tempDMatiere;
	
	gotoXY(16,9);	cin >> tempNMatiere;
	position = 12;
	do { // Confirme l'enregistrement du nouvel etudiant
		gotoXY(1, position);	cout << "Voulez vous enregistrer le nouvel etudiant? (O/N) ";
		cin >> res;
		position++;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
		
	if (res == 'O' || res == 'o') {
		Etud[curr].Numero = tempNumero;
		strncpy_s(Etud[curr].Nom, tempNom, _TRUNCATE);
		strncpy_s(Etud[curr].Telephone, tempTelephone, _TRUNCATE);
		Etud[curr].Matiere = tempCMatiere;
		Etud[curr].Note = tempNMatiere;
		gotoXY(1, position); cout << "Donnees ajoutees avec Succes";
		position++;
		curr++; // Variable *importante* qui retourne l'index courant
		total++; // Variable *importante* qui retourne le total d'etudiants
	}
	do {
	gotoXY(1, position); 
	cout << "Avez vous d'autres mises-a-jours a faire? (O/N) ";
	cin >> res;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'O' || res == 'o') {
		return -1; // --> Recommencer
	}
	return -2; // --> MenuMAJEtudiants()
	
}

int supprimerEtudiant(int index) {
	int position;
	char res;
	effacerEcran();
	gotoXY(10,1);	cout << "**********************************";
	gotoXY(10,2);	cout << "*\tSuppression d'un Etudiant\t   *";
	gotoXY(10,3);	cout << "**********************************";
	gotoXY(2,5);	cout << "Numero: ....................................";
	gotoXY(10,5);	cout << Etud[index].Numero;
	gotoXY(2,6);	cout << "Nom: .......................................";
	gotoXY(7,6);	cout << Etud[index].Nom;
	gotoXY(2,7);	cout << "Telephone: .................................";
	gotoXY(13,7);	cout << Etud[index].Telephone;
	gotoXY(2,8);	cout << "Code Matiere: ..............................";
	gotoXY(16,8);	cout << Etud[index].Matiere;
	gotoXY(2,9);	cout << "Note Matiere: ..............................";
	gotoXY(16,9);	cout << Etud[index].Note;
	gotoXY(2,10);	cout << "Description Matiere: .......................";
	gotoXY(23,10);	
	if (Etud[index].Matiere == 1) // Affiche le nom equivalent au numero de la matiere (description)
		cout << "SQL";
	else if (Etud[index].Matiere == 2)
		cout << "PL-SQL";
	else if (Etud[index].Matiere == 3)
		cout << "JAVA";
	else if (Etud[index].Matiere == 4)
		cout << "VB.NET";
	else if (Etud[index].Matiere == 5)
		cout << "C++";
	else if (Etud[index].Matiere == 6)
		cout << "LINUX";
	position = 12;	
	do // Confirme la suppression de l'etudiant
	{
		gotoXY(1,position);	cout << "Etes vous sur de vouloir supprimer cet etudiant? (O/N) ";
		cin >> res;
		position++;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res != 'O' || res != 'o') {
		for (;index < total;index++) // Suppresion et redistribution des index
		{
			Etud[index].Numero = Etud[index+1].Numero;
			Etud[index].Matiere = Etud[index+1].Matiere;
			Etud[index].Note = Etud[index+1].Note;
			strcpy_s(Etud[index].Nom, Etud[index+1].Nom);
			strcpy_s(Etud[index].Telephone, Etud[index+1].Telephone);
		}
		total--; // Variable *importante* qui indique le nombre total d'etudiant
		curr--; // Variable *importante* utile pour ajouter un etudiant, indique l'etudiant courant
	}
	do // Demande si on veut faire une autre suppresion
	{
		gotoXY(1,position);	cout << "Voulez-vous supprimer un autre etudiant? (O/N) ";
		cin >> res;
		position++;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'O' || res == 'o') return -1; // Recommencer --> rechercherEtudiant()
	return -2;	// Sortir au menu precedent --> MenuMAJEtudiants()
}


void ajouterEFictif() {
	Etud[0].Numero = 2523;
	strncpy_s(Etud[0].Nom, "Cynthio", _TRUNCATE);
	strncpy_s(Etud[0].Telephone, "348 348 3423", _TRUNCATE);
	Etud[0].Note = 35;
	Etud[0].Matiere = 3;

	Etud[1].Numero = 23;
	strncpy_s(Etud[1].Nom, "Olivier", _TRUNCATE);
	strncpy_s(Etud[1].Telephone, "5145033433", _TRUNCATE);
	Etud[1].Note = 35;
	Etud[1].Matiere = 3;

	Etud[2].Numero = 26;
	strncpy_s(Etud[2].Nom, "Raulin", _TRUNCATE);
	strncpy_s(Etud[2].Telephone, "52343433", _TRUNCATE);
	Etud[2].Note = 12;
	Etud[2].Matiere = 1;

	Etud[3].Numero = 53;
	strncpy_s(Etud[3].Nom, "Connard", _TRUNCATE);
	strncpy_s(Etud[3].Telephone, "(543) 212-2333", _TRUNCATE);
	Etud[3].Note = 54;
	Etud[3].Matiere = 2;
	
	Etud[4].Numero = 78;
	strncpy_s(Etud[4].Nom, "Pendejo", _TRUNCATE);
	strncpy_s(Etud[4].Telephone, "543-256-4453", _TRUNCATE);
	Etud[4].Note = 98;
	Etud[4].Matiere = 4;
	
	total = 5;
	curr = 5;
}
// FIN DE LA SECTION MISES-A-JOUR
// DEBUT DE LA SECTION DES RECHERCHES ET LISTES
int rechercherEtudiant() {
	int i, rech;
	char res;
	effacerEcran();
	gotoXY(10,1);	cout << "**********************************";
	gotoXY(10,2);	cout << "*\tRecherche d'un Etudiant\t   *";
	gotoXY(10,3);	cout << "**********************************";
	do {
		gotoXY(2,5);	cout << "Numero de l'Etudiant: ....................";
		gotoXY(24,5);	cin >> rech;
	}
	while (rech <= 0);
	gotoXY(1,7);	cout << "Recherche en cours...";
	for (i = 0;i <= total; i++) {
		if (Etud[i].Numero == rech)
			return i;
	}
	gotoXY(1,8);	cout << "Aucun etudiant n'a ete trouve avec ce numero.";
	do  
	{
		gotoXY(1,9);	cout << "Voulez vous essayez a nouveau? (O/N) ";
		cin >> res;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'O' || res == 'o') {
		return -1; // Reessayer --> rechercherEtudiant()
	}
	return -2; // Ne pas reessayer
}
int afficherEtudiant(int index) {
	int position;
	char res;
	effacerEcran();
	gotoXY(10,1);	cout << "**********************************";
	gotoXY(10,2);	cout << "*\tAffichage d'un Etudiant\t   *";
	gotoXY(10,3);	cout << "**********************************";
	gotoXY(2,5);	cout << "Numero: ....................................";
	gotoXY(10,5);	cout << Etud[index].Numero;
	gotoXY(2,6);	cout << "Nom: .......................................";
	gotoXY(7,6);	cout << Etud[index].Nom;
	gotoXY(2,7);	cout << "Telephone: .................................";
	gotoXY(13,7);	cout << Etud[index].Telephone;
	gotoXY(2,8);	cout << "Code Matiere: ..............................";
	gotoXY(16,8);	cout << Etud[index].Matiere;
	gotoXY(2,9);	cout << "Note Matiere: ..............................";
	gotoXY(16,9);	cout << Etud[index].Note;
	gotoXY(2,10);	cout << "Description Matiere: .......................";
	gotoXY(23,10);	
	if (Etud[index].Matiere == 1)
		cout << "SQL";
	else if (Etud[index].Matiere == 2)
		cout << "PL-SQL";
	else if (Etud[index].Matiere == 3)
		cout << "JAVA";
	else if (Etud[index].Matiere == 4)
		cout << "VB.NET";
	else if (Etud[index].Matiere == 5)
		cout << "C++";
	else if (Etud[index].Matiere == 6)
		cout << "LINUX";
	position = 12;	
	do
	{
		gotoXY(1,position);	cout << "Voulez vous faire une autre recherche? (O/N) ";
		cin >> res;
		position++;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'O' || res == 'o') return -1; // Recommencer --> rechercherEtudiant()
	return -2; // --> MenuRecherchesListes();
}
void afficherMeilleurEtudiant() {
	char buffer;
	int i, max = 0, indmax;
	for (i = 0; i <= total; i++) {
		if (Etud[i].Note > max) 
			indmax = i;
	}
	effacerEcran();
	gotoXY(10,1);	cout << "*****************************************";
	gotoXY(10,2);	cout << "*\tAffichage du meilleur Etudiant\t  *";
	gotoXY(10,3);	cout << "*****************************************";
	gotoXY(2,5);	cout << "Numero: ....................................";
	gotoXY(10,5);	cout << Etud[indmax].Numero;
	gotoXY(2,6);	cout << "Nom: .......................................";
	gotoXY(7,6);	cout << Etud[indmax].Nom;
	gotoXY(2,7);	cout << "Telephone: .................................";
	gotoXY(13,7);	cout << Etud[indmax].Telephone;
	gotoXY(2,8);	cout << "Code Matiere: ..............................";
	gotoXY(16,8);	cout << Etud[indmax].Matiere;
	gotoXY(2,9);	cout << "Note Matiere: ..............................";
	gotoXY(16,9);	cout << Etud[indmax].Note;
	gotoXY(2,10);	cout << "Description Matiere: .......................";
	gotoXY(23,10);	
	if (Etud[indmax].Matiere == 1)
		cout << "SQL";
	else if (Etud[indmax].Matiere == 2)
		cout << "PL-SQL";
	else if (Etud[indmax].Matiere == 3)
		cout << "JAVA";
	else if (Etud[indmax].Matiere == 4)
		cout << "VB.NET";
	else if (Etud[indmax].Matiere == 5)
		cout << "C++";
	else if (Etud[indmax].Matiere == 6)
		cout << "LINUX";
	gotoXY(1,12);	cout << "Appuyez sur n'importe quelle touche pour retourner au menu precedent. ";
	cin >> buffer;
	}
void afficherParNote() {
	effacerEcran();
	Etudiant permute;
	char buffer;
	int i, j, dim, position;
	dim = total;
	for (i = 0; i < dim - 1; i++) {
		for (j = i + 1; j < dim; j++) {
			if (Etud[i].Note < Etud[j].Note) {
				permute = Etud[i];
				Etud[i] = Etud[j];
				Etud[j] = permute;
			}
		}
	}
	gotoXY(10,1);	cout << "***************************************";
	gotoXY(10,2);	cout << "*\tAffichage des Etudiants par\t*";
	gotoXY(10,3);	cout << "*\tordre decroissant\t\t*";
	gotoXY(10,4);	cout << "***************************************" << endl;
	position = 7;
	for (i = 0; i < dim; i++) {
		gotoXY(1, position);	cout << "Etudiant: ........................";
		gotoXY(11, position);	cout << Etud[i].Nom;
		position++;
		gotoXY(1, position);	cout << "Note: ............................";
		gotoXY(7, position);	cout << Etud[i].Note << endl << endl << endl;
		position += 2;
		}
	gotoXY(1,position);	cout << "Appuyez sur n'importe quelle touche pour retourner au menu precedent. ";
	cin >> buffer;
}
// FIN DE LA SECTION DES RECHERCHES ET LISTES
int SauverFichier() {
	char res;
	int i;
	
	gotoXY(10,1);	cout << "**********************************";
	gotoXY(10,2);	cout << "*\tSauvegarde sur fichier\t   *";
	gotoXY(10,3);	cout << "**********************************";
	do {
		gotoXY(1,5);	cout << "Etes-vous sur de vouloir sauvegarder sur fichier? ";
		cin >> res;
	}
	while ((res != 'O' && res != 'o') && (res != 'N' && res != 'n'));
	if (res == 'N' || res == 'n') return -2; // Sortir

	ofstream idFile("c:\\temp\\Etudiants.txt", ios::out);
	if (idFile.fail()) {
		gotoXY(10,6);	cout << "Erreur lors de l'ecriture";
	}
	else {
		for (i = 0; i < total; i++) {
			idFile << Etud[i].Numero << endl;
			idFile << Etud[i].Nom << endl;
			idFile << Etud[i].Matiere << endl;
			idFile << Etud[i].Note << endl;
		}
		gotoXY(1,7);	cout << "Ecriture de " << i << " enregistrements effectues avec Succes!" << endl << endl;
		idFile.close();
		return -1;
	}
}

void main() {
	ajouterEFictif();
	//MenuGestionEtudiants();
	SauverFichier();
}