#include <iostream.h>
#include <string.h>

typedef struct article 
{
	int num;
	char des[100];
	int stock;
	float prix;
	struct article *succ;
} art, *listart;

typedef struct it 
{
	int qte;
	art *art;
	struct it *succ;
} item, *listitem;

typedef struct cmde 
{
	int num;
	item *it;
	struct cmde *succ;
} cde, *listcde;


struct linecde
{
	int numart;
	int qte;
};

void ajart(listart &A, listart &q) 
{
	if (A && A->succ)
		ajart(A->succ,q);
	else
	{	
		q->succ=NULL;
		if(A)
		{
			q->num=A->num+1;
			A->succ=q;
		} 
		else 
		{
			q->num=1;
			A=q;
		}
	}
}

void saisi_art(listart &A) 
{
	art *q;
	q=new art;

	cout << "***** Saisir une article *****\n";
//	cout << "Ref article : ";
//	cin >> q->num;
	cout << "Des article : ";
	cin >> q->des;
	cout << "Qte article : ";
	cin >> q->stock;
	cout << "Prix article : ";
	cin >> q->prix;
	cout << endl;
	ajart(A,q);
}

int entrerstock(int numart, int Q, listart &A) 
{
	int res=0;
	
	if (A && A->num==numart)
	{
		A->stock+=Q;
		res=1;
	}
	else
		if (A) res=entrerstock(numart,Q,A->succ);

	return res;
}

art* adrart(int num, listart A)
{
	art *q;
	if (A && A->num!=num) q=adrart(num,A->succ);
	else q=A;
	return q;
}

void saisir_it(listitem &I,listart A) 
{
	item *q;
	int num;
	char choix;
	
	cout << "entrez la ref d un article : ";
	cin >> num;
	

	q=new item;
	
	if (q->art=adrart(num,A))
	{
		cout << "Quantite Cde ? : ";
		cin >> q->qte;
		q->succ=NULL;
		I=q;
	} 
	else 
	{
		cout << "produit inexistant!\n";
		I=NULL;
		delete q;
	}

	cout << "Autre produit? O/N\n";
	cin >> choix;
	if (choix=='o' || choix=='O') 
		if (I) saisir_it(I->succ,A);
		else saisir_it(I,A);

}
	

void ajcde(listcde &C, listcde &q)
{
	if (C && C->succ) 
		ajcde(C->succ,q);
	else
	{	
		q->succ=NULL;
		if (C)
		{	
			q->num=C->num+1;
			C->succ=q;
		}
		else
		{
			q->num=1;
			C=q;
		}
	}
}

void saisie_cde(listcde &C,listart A)
{
	cde *q;
	q= new cde;

	cout << "***** Saisir une commande *****\n";
//	cout << "Ref commande : ";
//	cin >> q->num;
	ajcde(C,q);
	saisir_it(q->it,A);
}
	

void affart(listart A)
{
	if (A)
	{
		cout << "Numart : " << A->num << endl;
		cout << "Design : " << A->des << endl;
		cout << "Stock  : " << A->stock << endl;
		cout << "Prix   : " << A->prix << " Euros\n"<< endl;
		affart(A->succ);
	}
}

float affitem(listitem I)
{
	float som=0;

	if (I)
	{
		cout << "\n\tDesign : " << I->art->des;
		cout << "\n\tQuanti : " << I->qte;
		som=I->qte*I->art->prix;
		cout << "\n\tPrix   : " << som << " Euros\n";
		som+=affitem(I->succ);
		
	}
	return som;
}		

void affcde(listcde C)
{
	float somme=0;

	if (C)
	{
		cout << "Commande num : " << C->num << endl;
		somme=affitem(C->it);
		cout << "\nTotal de la commande : " << somme << " Euros\n\n";
		affcde(C->succ);
	}
}

int compteI(listart A, listitem I) 
{
	int S=0;
	if (I) 
	{
		if (I->art==A) S=I->qte;
		S+=compteI(A,I->succ);
	}
	return S;
}

int compteC(listart A, listcde C) 
{
	int S=0;
	if (C) 
	{
		S=compteI(A,C->it);
		S+=compteC(A,C->succ);
	}
	return S;
}

void printcdes(listart A, listcde C)
{
	int S=0;
	if (A) 
	{
		S=compteC(A,C);
		cout << "Article : " << A->des << " = " << S << " Commandes\n";
		printcdes(A->succ,C);
	}
}

int checkstock(int numcde, listcde C)
{
	int res=0;
	item *i;
	if (C && C->num!=numcde) res=checkstock(numcde,C->succ);
	else 
	{
		if (C) 
		{
			i=C->it;
			while (i)
			{
				if (compteI(i->art,C->it)>i->art->stock) res=1;
				i=i->succ;
			}
		} 
		else res=1;
	}
	return res;
}

void decstock(listitem I)
{
	if (I)
	{
		entrerstock(I->art->num,I->qte*-1,I->art);
		decstock(I->succ);
	}

}

float docde (int numcde, listcde C)
{
	float somme=0;
	if (C && C->num!=numcde) somme=docde(numcde,C->succ);
	else
	{
		if (C)
		{
			somme =affitem(C->it);
			decstock(C->it);
		}
	}
	return somme;
}

void insertcde(int numcde,struct linecde lines[],int nlines,listcde &C, listart A)
{
	int j;
	listitem i=NULL,p=NULL;
	cde *q;
	q = new cde;
	ajcde(C,q);
	q->num=numcde;
	i=new item;
	q->it = i;
	for (j =0;j<nlines;j++)
	{	
		i->art=adrart(lines[j].numart,A);
		i->qte=lines[j].qte;
		p=new item;
		i->succ=p;
		p->succ=NULL;
		i=p;
	}
}

void inittest(listart &A, listcde &C) 
{
	art *q;
	cde *p;
	q=new art;
//	saisi_art(A);// fontionne
//	q->num=1;
	strcpy(q->des,"Gants");
	q->stock=15;
	q->prix=(float) 25.9;
	ajart(A,q);
//	affart(A);
	q=new art;
//	q->num=3;
	strcpy(q->des,"Mouffles");
	q->stock=10;
	q->prix=(float) 35.5;
	ajart(A,q);
	q=new art;
//	q->num=2;
	strcpy(q->des,"Bagues");
	q->stock=23;
	q->prix=(float) 19.9;
	ajart(A,q);
	q=new art;
//	q->num=4;
	strcpy(q->des,"Chevalieres");
	q->stock=45;
	q->prix=(float) 66.99;
	ajart(A,q);
	p=new cde;
//	p->num=1;
	ajcde(C,p);
	p->it = new item ;
	p->it->art=adrart(1,A) ;
	p->it->qte=20 ;
	p->it->succ=NULL;
	p=new cde;
//	p->num=2;
	ajcde(C,p);
	p->it = new item ;
	p->it->art=adrart(2,A) ;
	p->it->qte=5 ;
	p->it->succ=NULL;
	p=new cde;
//	p->num=3;
	ajcde(C,p);
	p->it = new item ;
	p->it->art=adrart(2,A) ;
	p->it->qte=2 ;
	p->it->succ=NULL;
	p->it->succ = new item ;
	p->it->succ->art=adrart(3,A) ;
	p->it->succ->qte=9 ;
	p->it->succ->succ=NULL;
}

void main() 
{
	listart Art=NULL;
	listcde Cde=NULL;
	int faire;
	
	struct linecde Lc[10];
	Lc[0].numart=1;
	Lc[0].qte=12;
	Lc[1].numart=3;
	Lc[1].qte=24;

	inittest(Art,Cde);
	insertcde(4,Lc,2,Cde,Art);

	
//	saisi_art(Art);
//	saisie_cde(Cde,Art);
// test de entrerstock
	if (faire=entrerstock(2,155,Art)) cout << "a jour\n";
	else cout << "article non trouve\n";
	if (faire=entrerstock(5,155,Art)) cout << "a jour\n";
	else cout << "article non trouve\n";


	affart(Art);
	affcde(Cde);
	printcdes(Art,Cde);
	if (faire=checkstock(1,Cde)) cout << "pas honorable\n";
	else cout << "satisfaisable\n";
	if (faire=checkstock(2,Cde)) cout << "pas honorable\n";
	else cout << "satisfaisable\n";

	cout <<"somme commande 3 : "<<docde(3,Cde)<<endl;

	affart(Art);
}