1 #include<iostream>
2 #include<stdio.h>
3 #include<conio.h>
4 #include<process.h>
5 #include<fstream>
6 #include<string>
7 #include<stdlib.h>
8 using namespace std;
9 class product
10 {
11 int prno;
12 char name[50];
13 float price,qty,dis,tax;
14 public:
15 void createpr()
16 {
17 cout<<endl<<"Enter the product number"<<endl;
18 cin>>prno;
19 cout<<"Enter the product name"<<endl;
20 std::cin>>name;
21 cout<<"Enter the price of the product"<<endl;
22 cin>>price;
23 cout<<"Enter the discount percentage"<<endl;
24 cin>>dis;
25 }
26 void showpr()
27 {
28
29 cout<<"Product number: "<<prno<<endl;
30 cout<<"Product name: "<<std::cout<<name<<endl;
31 cout<<"Product price: "<<price<<endl;
32 cout<<"Discount percentage: "<<dis<<endl;
33 }
34 int retprno()
35 {
36 return prno;
37 }
38 float retprice()
39 {
40 return price;
41 }
42 char* retname()
43 {
44 return name;
45 }
46 int retdis()
47 {
48 return dis;
49 }
50 };
51 fstream fp;
52 product pr;
53 int writepr()
54 {
55 fp.open("SMBS.dat",ios::out|ios::app);
56 pr.createpr();
57 fp.write((char*)&pr,sizeof(product));
58 fp.close();
59 return 0;
60
61 }
62 int disp()
63 {
64 cout<<"Display all the records: "<<endl;
65 fp.open("SMBS.dat",ios::in|ios::out);
66 while(fp.read((char*)&pr,sizeof(product)))
67 {
68 pr.showpr();
69 }
70 fp.close();
71 return 0;
72 }
73 int dispsp()
74 {
75 int flag=0,n;
76 cout<<"Enter the product number: "<<endl;
77 cin>>n;
78 fp.open("SMBS.dat",ios::in|ios::out);
79 while(fp.read((char*)&pr,sizeof(product)))
80 {
81 if(pr.retprno()==n)
82 {
83 pr.showpr();
84 flag=1;
85 }
86 }
87 fp.close();
88 if(flag==0)
89 {
90 cout<<"Record does not exist"<<endl;
91 }
92 return 0;
93 }
94 int modifypr()
95 {
96 int no,found=0;
97 system("cls");
98 cout<<"Enter the product number:"<<endl;
99 cin>>no;
100 fp.open("SMBS.dat",ios::in|ios::out);
101 while(fp.read((char*)&pr,sizeof(product))&&found==0)
102 {
103 if(pr.retprno()==no)
104 {
105 pr.showpr();
106 cout<<"Enter the new details of the product:"<<endl;
107 pr.createpr();
108 int long long pos=-1*sizeof(pr);
109 fp.seekp(pos,ios::cur);
110 fp.write((char*)&pr,sizeof(product));
111 cout<<"The details of the product has been modified"<<endl;
112 found=1;
113
114 }
115 }
116 fp.close();
117 if(found==0)
118 {
119 cout<<"Record not found"<<endl;
120 }
121 return 0;
122 }
123 int deletepr()
124 {
125 int num;
126 system("cls");
127 cout<<"Enter the product number of the product you want to delete"<<endl;
128 cin>>num;
129 fp.open("SMBS.dat",ios::in|ios::out);
130 fstream fp2;
131 fp2.open("Temporary.dat",ios::out);
132 fp.seekg(0,ios::beg);
133 while(fp.read((char*)&pr,sizeof(product)))
134 {
135 if(pr.retprno()!=num)
136 {
137 fp2.write((char*)&pr,sizeof(product));
138 }
139 }
140 fp2.close();
141 fp.close();
142 remove("SMBS.dat");
143 rename("Temporary.dat","SMBS.dat");
144 cout<<"The record of the product has been deleted"<<endl;
145 return 0;
146 }
147 int menu()
148 {
149 system("cls");
150 fp.open("SMBS.dat",ios::in);
151 if(!fp)
152 {
153 cout<<"Error:The file cannot be opened, head over to the Admin menu to create a new file."<<endl;
154 exit(0);
155 }
156 else
157 cout<<"Product Menu:"<<endl;
158 cout<<"---------------------------------------------"<<endl;
159 cout<<"Product number:\t\tName:\t\tPrice:"<<endl;
160 cout<<"---------------------------------------------"<<endl;
161 while(fp.read((char*)&pr,sizeof(product)))
162 {
163 cout<<"\t"<<pr.retprno()<<"\t\t"<<pr.retname()<<"\t\t"<<pr.retprice()<<endl;
164 }
165 fp.close();
166 return 0;
167 }
168 int placeorder()
169 {
170 system("cls");
171 int order[50],quan[50],c=0;
172 float amt,damt,total=0;
173 char ch='Y';
174 menu();
175 cout<<"\n\n\n\n---------------------------------------------";
176 cout<<"\n-Place your order-"<<endl;
177 cout<<"---------------------------------------------"<<endl;
178 do
179 {
180 cout<<"Enter the product number:"<<endl;
181 cin>>order[c];
182 cout<<"Enter the quantity:"<<endl;
183 cin>>quan[c];
184 c++;
185 cout<<"Do want to order another product? (Y/N):"<<endl;
186 cin>>ch;
187 }while(ch=='y'||ch=='Y');
188 cout<<"Invoice:"<<endl;
189 cout<<"Product number\tProduct Name\tQuantity\tPrice\tAmount\tAmount after discount"<<endl;
190 for(int x=0;x<=c;x++)
191 {
192 fp.open("SMBS.dat",ios::in);
193 fp.read((char*)&pr,sizeof(product));
194 while(!fp.eof())
195 {
196 if(pr.retprno()==order[x])
197 {
198 amt=pr.retprice()*quan[x];
199 damt=amt-(amt*pr.retdis()/100);
200 cout<<"\n"<<"\t"<<order[x]<<"\t"<<pr.retname()<<"\t\t"<<quan[x]<<"\t\t"<<pr.retprice()<<"\t"<<amt<<"\t\t"<<damt;
201 total=total+damt;
202 }
203 fp.read((char*)&pr,sizeof(product));
204 }
205 fp.close();
206 }
207 cout<<"\n\n\t\t\t\t\tTotal:"<<total;
208 return 0;
209 }
210 int into()
211 {
212 cout<<"-----Super Market Billing System Version 2-----"<<endl;
213 cout<<"\nMade by: code-projects.org"<<endl;
214
215 return 0;
216 }
217 int admin()
218 {
219 system("cls");
220 char ch2;
221 cout<<"Administration menu:"<<endl;
222 cout<<"1.Create a product."<<endl;
223 //cout<<"2.Display all products."<<endl;
224 //cout<<"3.Query- Display a specific product."<<endl;
225 cout<<"2.Modify a product"<<endl;
226 cout<<"3.Delete a product."<<endl;
227 cout<<"4.View product menu."<<endl;
228 cout<<"5.Back to main menu()."<<endl;
229 cout<<"Enter your choice:"<<endl;
230 ch2=getche();
231 switch(ch2)
232 {
233 case '1':
234 {
235 writepr();
236 break;
237 }
238 //case '2':
239 {
240 disp();
241 break;
242 }
243 //case '3':
244 {
245 system("cls");
246 dispsp();
247 break;
248 }
249 case '2':
250 {
251 modifypr();
252 break;
253 }
254 case '3':
255 {
256 deletepr();
257 break;
258 }
259 case '4':
260 {
261 menu();
262 getch();
263 }
264 case '5':
265 {
266 break;
267 }
268 default: cout<<"\a";admin();
269 }
270 return 0;
271 }
272 int main()
273 {
274 char ch;
275 into();
276 do
277 {
278 cout<<"\n\nWelcome to The Super Market Billing System Application"<<endl;
279 cout<<"Main Menu:"<<endl;
280 cout<<"1.Customer"<<endl;
281 cout<<"2.Administrator"<<endl;
282 cout<<"3.Exit"<<endl;
283 cout<<"Enter your choice:"<<endl;
284 ch=getche();
285 switch(ch)
286 {
287 case '1':
288 {
289 placeorder();
290 getch();
291 break;
292 }
293 case '2':
294 {
295 admin();
296 break;
297 }
298 case '3':
299 {
300 exit(0);
301 }
302 default:cout<<"\a";
303 }
304 system("cls");
305 }while(ch!=3);
306 return 0;
307 }
