Initial commit

This commit is contained in:
Mikołaj Rosa 2022-05-24 14:39:41 +02:00
commit a5bfa83769
5 changed files with 322 additions and 0 deletions

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#include <iostream>
#include <vector>
using namespace std;
struct Video {
string name;
int length;
};
struct User {
int id;
string name;
string surname;
int subDuration;
bool avaliable;
};
class VoD {
vector<User> users;
vector<Video> videos;
public:
void addUser(string name, string surname, int subDuration) {
int len = users.size();
User tmp;
tmp.id = len;
tmp.name = name;
tmp.surname = surname;
tmp.subDuration = subDuration;
tmp.avaliable = true;
users.push_back(tmp);
}
void removeUser(int id) {
/*users.erase(
remove_if(users.begin(), users.end(), [&](User const& user) {
return user.id == id;
}),
users.end());*/
users.at(id).avaliable = false;
}
void extendSub(int userId, int days) {
if (!users.at(userId).avaliable) cout << "User with ID " << userId << " is not avaliable" << endl;
users.at(userId).subDuration = users.at(userId).subDuration + days;
}
void watchVideo(int userId) {
if (!users.at(userId).avaliable) cout << "User with ID " << userId << " is not avaliable" << endl;
else if (users.at(userId).subDuration > 0) cout << "User " << users.at(userId).name << " can watch" << endl;
else cout << "User " << users.at(userId).name << " cannot watch (expired " << (users.at(userId).subDuration * -1) << " days ago)" << endl;
}
friend void displayUsers(VoD);
friend void displayVideos(VoD);
bool isSubValidForUser(int id) {
User user = users.at(id);
if (user.subDuration > 0 && users.at(id).avaliable) return true;
return false;
}
void addVideo(string name, int length) {
Video tmp;
tmp.name = name;
tmp.length = length;
videos.push_back(tmp);
}
void removeVideo(string name) {
videos.erase(
remove_if(videos.begin(), videos.end(), [&](Video const& video) {
return video.name == name;
}),
videos.end());
}
};
void displayUsers(VoD vod) {
for (vector<User>::iterator i = vod.users.begin(); i != vod.users.end(); i++) {
User user = *i;
if (!user.avaliable) continue; // iterowanie wektora z "pustym" polem wywala³o segfault, nie wiem dlaczego skoro podejœcie z displayVideos() dzia³a tam prawid³owo
cout << "ID: " << user.id << ", " << user.name << " " << user.surname;
if (vod.isSubValidForUser(user.id)) cout << ", sub valid for " << user.subDuration << " days" << endl;
else cout << ", sub expired " << (user.subDuration * -1) << " days ago" << endl; // ujemne wartoœci subDuration to wygas³y abonament, mno¿ymy przez -1 by zamieniæ na normalne dni
}
}
void displayVideos(VoD vod) {
for (vector<Video>::iterator i = vod.videos.begin(); i != vod.videos.end(); i++) {
Video vid = *i;
cout << "Name: " << vid.name << ", length: " << vid.length << " minutes" << endl;
}
}
int main()
{
VoD vod;
vod.addVideo("Interstellar", 180);
vod.addVideo("The Martian", 125);
vod.addVideo("Gravity", 100);
displayVideos(vod);
vod.removeVideo("The Martian");
displayVideos(vod);
vod.addUser("Andrzej", "Kretoszczur", 7);
vod.addUser("Stefan", "Myszojelen", 14);
vod.addUser("Jakub", "Dodo", 21);
displayUsers(vod);
vod.removeUser(1);
displayUsers(vod);
vod.extendSub(0, -35);
vod.extendSub(1, 14);
vod.extendSub(2, 7);
displayUsers(vod);
vod.watchVideo(0);
vod.watchVideo(2);
}

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