#include<iostream.h>
 #include<stdio.h>
 #include<fstream.h>
 #include<conio.h>
 #include<string.h>

  struct tovar
   {double obyem;        //obyem partii
    double st_ed;        //stoimost edinicy tovara
    int kol_pr_ed;       //kol-vo prodannyx edinic
    char vid_tov[20];    //nazvanie vida tovara
    char data[10];       //data postavki
   }rec,a[50],*p;

  ofstream outstream;
  ifstream instream;

  void Input(tovar &rec);
  void Create_DB();
  void Read_DB(int &n,tovar *p);
  void View_DB();
  void Edit_DB();
  void Add_DB();
  void Del_DB();
  void Process_DB();
  int n;
  char ans;
  char filename[10];

  int main()
   {int pm;
    p=&a[0];
    clrscr();
    textbackground(3);
    textcolor(12);
    gotoxy(35,20);
    printf("SKLAD TOVAROV");
    gotoxy(25,25);
    cout<<"Vvedite 'y' dlja prodolzhenija ";
    cin>>ans;
    clrscr();
    textbackground(10);
    textcolor(11);
    gotoxy(30,20);
    cout<<"Vvedite imja fajla ";
    cin>>filename;
    do
     {clrscr();
      textbackground(8);
      textcolor(5);
      gotoxy(30,20);
      printf("***********MENU************");
      gotoxy(30,21);
      printf("*                         *");
      gotoxy(30,22);
      cout<<"* 1-Zapis v fajl          *";
      gotoxy(30,23);
      cout<<"* 2-Prosmotr fajla        *";
      gotoxy(30,24);
      cout<<"* 3-Korrekcija fajla      *";
      gotoxy(30,25);
      cout<<"* 4-Dobavlenie v fajl     *";
      gotoxy(30,26);
      cout<<"* 5-Udalenie iz fajla     *";
      gotoxy(30,27);
      cout<<"* 6-Poisk nuzhnogo tovara *";
      gotoxy(30,28);
      cout<<"* 7-Vyxod                 *";
      gotoxy(30,29);
      printf("*                         *");
      gotoxy(30,30);
      printf("***************************");
      gotoxy(30,33);
      cout<<"Vvedite nuzhnyj punkt menu ";
      cin>>pm;
      clrscr();
      switch(pm)
       {case 1:Create_DB();break;
	case 2:View_DB();break;
	case 3:Edit_DB();break;
	case 4:Add_DB();break;
	case 5:Del_DB();break;
	case 6:Process_DB();break;
	case 7:return(1);
       }
      cout<<endl;
      cout<<"Budete esche rabotat? y/n ";
      cin>>ans;
     }
    while ((ans)=='y');
    return 0;
   }

  void Input(tovar &rec)
  //procedura vvoda informacii ob odnom tovare
   {clrscr();
    cout<<"Vvedite nazvanie tovara,obyem partii,stoimost edinicy tovara,kol-vo prodannyx edinic tovara i datu postuplenija"<<endl;
    printf("--------------------------------------------------------------------------------");
    printf("|  Tovar   | Obyem partii | Stoimost ed. | Kol-vo prodannyx ed. | Data postupl.|");
    printf("--------------------------------------------------------------------------------");
    cout<<endl;
    gotoxy(1,6);
    cout<<'|';
    gotoxy(3,6);
    cin>>rec.vid_tov;
    gotoxy(12,6);
    cout<<'|';
    gotoxy(17,6);
    cin>>rec.obyem;
    gotoxy(27,6);
    cout<<'|';
    gotoxy(32,6);
    cin>>rec.st_ed;
    gotoxy(42,6);
    cout<<'|';
    gotoxy(50,6);
    cin>>rec.kol_pr_ed;
    gotoxy(65,6);
    cout<<'|';
    gotoxy(70,6);
    cin>>rec.data;
    gotoxy(83,6);
    cout<<'|';
    printf("--------------------------------------------------------------------------------");
    cout<<endl;
   }

  void Create_DB()
  //procedura zapisi v fajl informacii ob odnom tovare
   {outstream.open(filename);
    do
     {Input(rec);
      outstream<<rec.vid_tov<<endl<<rec.obyem<<endl<<rec.st_ed<<endl<<rec.kol_pr_ed<<endl<<rec.data<<endl;
      cout<<"Esche budete vvodit? y/n ";
      cin>>ans;
     }
    while ((ans)=='y');
    outstream.close();
   }

  void Read_DB(int &n,tovar *p)
  //procedura chtenija dannyx iz fajla v OP
   {int i=0;
    instream.open(filename);
    do
     {instream>>a[i].vid_tov>>a[i].obyem>>a[i].st_ed>>a[i].kol_pr_ed>>a[i].data;
      i++;
     }
    while (!instream.eof());
    n=i;
    instream.close();
   }

  void View_DB()
  //procedura prosmotra BD
   {int i;
    Read_DB(n,p);
    printf("--------------------------------------------------------------------------------");
    printf("|  Tovar   | Obyem partii | Stoimost ed. | Kol-vo prodannyx ed. | Data postupl.|");
    printf("--------------------------------------------------------------------------------");
    for (i=0;i<n-1;i++)
     {printf("|%10s|%14f|%14f|%22d|%14s",a[i].vid_tov,a[i].obyem,a[i].st_ed,a[i].kol_pr_ed,a[i].data);
      cout<<'|';
      printf("--------------------------------------------------------------------------------");
     }
    cout<<endl;
   }

  void Edit_DB()
  //procedura redaktirovanija zapisej v fajle
   {int i,nz;
    Read_DB(n,p);
    do
     {cout<<endl;cout<<"Vvedite nomer korrektiruemoj zapisi ";
      cin>>nz;
      cout<<"Vvedite nazvanie tovara,obyem partii,stoimost edinicy tovara,kol-vo prodannyx edinic tovara i datu postuplenija"<<endl;
      printf("--------------------------------------------------------------------------------");
      printf("|  Tovar   | Obyem partii | Stoimost ed. | Kol-vo prodannyx ed. | Data postupl.|");
      printf("--------------------------------------------------------------------------------");
      cout<<endl;
      gotoxy(1,6);
      cout<<'|';
      gotoxy(3,6);
      cin>>a[nz].vid_tov;
      gotoxy(12,6);
      cout<<'|';
      gotoxy(17,6);
      cin>>a[nz].obyem;
      gotoxy(27,6);
      cout<<'|';
      gotoxy(32,6);
      cin>>a[nz].st_ed;
      gotoxy(42,6);
      cout<<'|';
      gotoxy(50,6);
      cin>>a[nz].kol_pr_ed;
      gotoxy(65,6);
      cout<<'|';
      gotoxy(70,6);
      cin>>a[nz].data;
      gotoxy(83,6);
      cout<<'|';
      printf("--------------------------------------------------------------------------------");
      cout<<endl<<endl;
      cout<<"Esche budete korrektirovat? y/n ";
      cin>>ans;
     }
    while ((ans)=='y');
    outstream.open(filename);
    for (i=0;i<n-1;i++)
     {outstream<<a[i].vid_tov<<endl<<a[i].obyem<<endl<<a[i].st_ed<<endl<<a[i].kol_pr_ed<<endl<<a[i].data<<endl;
     }
    cout<<endl;
    outstream.close();
   }

  void Add_DB()
  //procedura dobavlenija v fajl novyx zapisej
   {int i;
    outstream.open(filename,ios::app);
    do
     {Input(rec);
      outstream<<rec.vid_tov<<endl<<rec.obyem<<endl<<rec.st_ed<<endl<<rec.kol_pr_ed<<endl<<rec.data<<endl;
      cout<<"Budete esche dobavljat? y/n ";
      cin>>ans;
     }
    while ((ans)=='y');
    cout<<endl;
    outstream.close();
   }

  void Del_DB()
  //procedura udalenija iz fajla lishnix zapisej
   {int i,nz;
    Read_DB(n,p);
    do
     {cout<<"Vvedite nomer udaljaemoj zapisi ";
      cin>>nz;
      cout<<endl;
      strcpy(a[nz].vid_tov,"***");
      cout<<"Budete esche udaljat? y/n ";
      cin>>ans;
     }
    while ((ans)=='y');
    outstream.open(filename,ios::trunc);
    for (i=0;i<n;i++)
     {if (strcmp(a[i].vid_tov,"***"))
       {outstream<<a[i].vid_tov<<endl<<a[i].obyem<<endl<<a[i].st_ed<<endl<<a[i].kol_pr_ed<<endl<<a[i].data<<endl;
       }
     }
    cout<<endl;
    outstream.close();
   }

  void Process_DB()
  //procedura poiska v fajle nuzhnoj zapisi i prosmotra informacii po nej
   {int i;
    char nazva[20];
    Read_DB(n,p);
    cout<<"Vvedite nazvanie vida tovara ";
    cin>>nazva;
    cout<<endl;
    for (i=0;i<n;i++)
     {if (a[i].vid_tov==(nazva))
      {cout<<a[i].vid_tov<<endl<<a[i].obyem<<endl<<a[i].st_ed<<endl<<a[i].kol_pr_ed<<endl<<a[i].data<<endl;
       break;
      }
    cout<<endl;
     }
   }