ASSIGNMENTREVIEWSYSTEM

#include <bits/stdc++.h>
using namespace std;

// Get current date/time, format is YYYY-MM-DD.HH:mm:ss
const std::string currentDateTime() {
    time_t now = time(0);
    struct tm tstruct;
    char buf[80];
    tstruct = *localtime(&now);
    strftime(buf, sizeof(buf), "%Y-%m-%d.%X", &tstruct);

    return buf;
}

class IMG_Member {
protected:
    string Name;
    string Enrollment_no;
    string Last_login;
    string Email_id;
    string Whatsapp_No;
    string DOB;

public:
    string get_Name() { return Name; }
    string get_DOB() { return DOB; }
    string get_current_login() { return Last_login; }

    void set_Last_login(const string& lastLogin) { Last_login = lastLogin; }
    void set_Whatsapp_No(const string& whatsappNo) { Whatsapp_No = whatsappNo; }
    void set_DOB(const string& dob) { DOB = dob; }
};

class Assignment {
private:
    string Assignment_title;
    string Assignment_probstatement;
    string Assignment_status;
    string Assignment_suggestion;
    string Assignment_Deadline;
    string Assignment_submission_time;

public:
    Assignment() {}
    Assignment(string title, string probstatement, string status = "Pending", string suggestion = "", string deadline = "")
        : Assignment_title(title), Assignment_probstatement(probstatement), Assignment_status(status), Assignment_suggestion(suggestion), Assignment_Deadline(deadline) {}

    string get_Assignment_status() { return Assignment_status; }
    string get_Assignment_suggestion() { return Assignment_suggestion; }
    string get_Assignment_title() { return Assignment_title; }
    string get_Assignment_probstatement() { return Assignment_probstatement; }
    string get_Assignment_submission_time() { return Assignment_submission_time; }

    void Update_Assignment_status_suggestion(string status, string suggestion) {
        Assignment_status = status;
        Assignment_suggestion = suggestion;
    }

    vector<string> Assignment_details() {
        return {Assignment_title, Assignment_probstatement, Assignment_status, Assignment_suggestion, Assignment_Deadline, Assignment_submission_time};
    }

    void get_Assignment_title_status() {
        cout << "Assignment Title: " << Assignment_title << endl;
        cout << "Assignment Status: " << Assignment_status << endl;
    }

    void get_Assignment_title_probstatement() {
        cout << "Assignment Title: " << Assignment_title << endl;
        cout << "Assignment Problem statement: " << Assignment_probstatement << endl;
        cout << "Assignment Deadline: " << Assignment_Deadline << endl;
    }
};

vector<Assignment> assignment_mainside;

class Student : public IMG_Member {
private:
    vector<Assignment> assignment_studentside;
    int Pin_key;

public:
    Student() {}
    Student(string name, string enrollment_no, string email_id, int pin_key) {
        Name = name;
        Enrollment_no = enrollment_no;
        Email_id = email_id;
        Pin_key = pin_key;
    }

    int Verify_pin_key() { return Pin_key; }

    void display_Personalinfo() {
        cout << "Name: " << Name << endl;
        cout << "Enrollment No.: " << Enrollment_no << endl;
        cout << "Email Address: " << Email_id << endl;
        cout << "Whatsapp Number: " << Whatsapp_No << endl;
        cout << "DOB: " << DOB << endl;
        cout << "Last Login: " << Last_login << endl;
    }

    vector<string> get_PersonalInfo() {
        return {Name, Enrollment_no, Email_id, Whatsapp_No, Last_login, DOB};
    }

    vector<Assignment> get_assignments() { return assignment_studentside; }

    void ADD_Assignemnt(string title, string content, string deadline, string addedon) {
        Assignment assig(title, content, "Pending", "", deadline);
        assignment_studentside.push_back(assig);
    }
};

class Reviewer : public IMG_Member {
private:
    vector<tuple<string, string, string>> Req_iteration;
    int Pin_key;

public:
    Reviewer() {}
    Reviewer(string name, string enrollment_no, string email_id, int pin_key) {
        Name = name;
        Enrollment_no = enrollment_no;
        Email_id = email_id;
        Pin_key = pin_key;
    }

    int Verify_pin_key() { return Pin_key; }

    void display_Personalinfo() {
        cout << "Name: " << Name << endl;
        cout << "Enrollment No.: " << Enrollment_no << endl;
        cout << "Email Address: " << Email_id << endl;
        cout << "Whatsapp Number: " << Whatsapp_No << endl;
        cout << "DOB: " << DOB << endl;
        cout << "Last Login: " << Last_login << endl;
    }

    void Add_assignment_iteration(string n, string s, string p) {
        Req_iteration.push_back({n, s, p});
    }
};

map<string, Student> Student_Details_map;
map<string, Reviewer> reviewer_details;

void page_start() {
    while (true) {
        cout << "..........................................................\n";
        cout << "Hey there! Welcome to IMG Assignment Review system!!!\n\n";
        cout << "How do we know you?\n\n";
        cout << "1. Existing IMG Member\n";
        cout << "2. New IMG Member? Well, we need to add you first!!\n";
        cout << "3. Exit\n\n";
        cout << "(Enter the suitable key 1/2/3)\n";
        cout << "..........................................................\n";

        int key;
        cout << "enter: ";
        cin >> key;
        switch (key) {
            case 1: {
                while (true) {
                    cout << "..........................................................\n";
                    cout << "Who do you want to login as?\n\n";
                    cout << "1. IMG Student \n";
                    cout << "2. IMG Reviewer \n";
                    cout << "3. Previous stage \n";
                    cout << "4. Exit\n";
                    cout << "Current login at: \n" << currentDateTime();
                    cout << "..........................................................\n";

                    int key1;
                    cout << "enter: ";
                    cin >> key1;

                    if (key1 == 3) {
                        break; // Go back to the previous stage
                    } else if (key1 == 4) {
                        exit(0);
                    }

                    string Enrollment_no_input;
                    int Pin_input;

                    if (key1 == 1) {
                        cout << "Enrollment Number: ";
                        cin >> Enrollment_no_input;
                        cout << "Enter Pin: ";
                        cin >> Pin_input;

                        if (Student_Details_map.find(Enrollment_no_input) != Student_Details_map.end() &&
                            Student_Details_map[Enrollment_no_input].Verify_pin_key() == Pin_input) {

                            Student_Details_map[Enrollment_no_input].set_Last_login(currentDateTime());
                            while (true) {
                                cout << "..........................................................\n";
                                cout << "Welcome " << Student_Details_map[Enrollment_no_input].get_Name() << endl << endl;
                                cout << "What would you like to do?\n\n";
                                cout << "1. Personal Details\n";
                                cout << "2. List of Assignments and their statuses\n";
                                cout << "3. Assignments and their Details\n";
                                cout << "4. View all last logins\n";
                                cout << "5. Submit assignment for iteration\n";
                                cout << "6. Exit\n";
                                cout << "..........................................................\n";

                                int response3;
                                cout << "Enter: ";
                                cin >> response3;

                                vector<Assignment> v = Student_Details_map[Enrollment_no_input].get_assignments();

                                if (response3 == 1) {
                                    cout << "..........................................................\n";
                                    Student_Details_map[Enrollment_no_input].display_Personalinfo();
                                } else if (response3 == 2) {
                                    for (auto& it : v) {
                                        cout << "..........................................................\n";
                                        it.get_Assignment_title_status();
                                        cout << "..........................................................\n";
                                    }
                                } else if (response3 == 3) {
                                    for (auto& it : v) {
                                        cout << "..........................................................\n";
                                        it.get_Assignment_title_probstatement();
                                        cout << "..........................................................\n";
                                    }
                                } else if (response3 == 4) {
                                    // Implement the view all last logins functionality
                                } else if (response3 == 5) {
                                    string a, b, c, d;
                                    cout << "Assignment title: ";
                                    cin.ignore();
                                    getline(cin, a);
                                    cout << "Problem statement: ";
                                    getline(cin, b);
                                    cout << "Submission time: ";
                                    getline(cin, c);
                                    cout << "Deadline: ";
                                    getline(cin, d);
                                    Student_Details_map[Enrollment_no_input].ADD_Assignemnt(a, b, c, d);
                                } else if (response3 == 6) {
                                    break;
                                } else {
                                    cout << "Invalid option. Please try again.\n";
                                }
                            }
                        } else {
                            cout << "Invalid Credentials\n";
                        }
                    } else if (key1 == 2) {
                        cout << "Enrollment Number: ";
                        cin >> Enrollment_no_input;
                        cout << "Enter Pin: ";
                        cin >> Pin_input;

                        if (reviewer_details.find(Enrollment_no_input) != reviewer_details.end() &&
                            reviewer_details[Enrollment_no_input].Verify_pin_key() == Pin_input) {

                            reviewer_details[Enrollment_no_input].set_Last_login(currentDateTime());
                            while (true) {
                                cout << "..........................................................\n";
                                cout << "Welcome " << reviewer_details[Enrollment_no_input].get_Name() << endl << endl;
                                cout << "What would you like to do?\n\n";
                                cout << "1. Personal Details\n";
                                cout << "2. Last logins\n";
                                cout << "3. List of Assignments and their statuses\n";
                                cout << "4. Add Assignment\n";
                                cout << "5. Previous Stage\n";
                                cout << "6. Exit\n";
                                cout << "..........................................................\n";

                                int response4;
                                cout << "Enter: ";
                                cin >> response4;

                                if (response4 == 1) {
                                    cout << "..........................................................\n";
                                    reviewer_details[Enrollment_no_input].display_Personalinfo();
                                } else if (response4 == 2) {
                                    cout << "..........................................................\n";
                                    cout << "Last login: " << reviewer_details[Enrollment_no_input].get_current_login() << endl;
                                } else if (response4 == 3) {
                                    for (auto& it : assignment_mainside) {
                                        cout << "..........................................................\n";
                                        it.get_Assignment_title_status();
                                        cout << "..........................................................\n";
                                    }
                                } else if (response4 == 4) {
                                    cout << "..........................................................\n";
                                    string assig_name, assig_content, assig_deadline;
                                    string assig_addedon = currentDateTime();
                                    cout << "Enter the title of the Assignment: \n";
                                    cin.ignore();
                                    getline(cin, assig_name);
                                    cout << "Enter the Assignment content: \n";
                                    getline(cin, assig_content);
                                    cout << "Enter the deadline of assignment:\n";
                                    getline(cin, assig_deadline);
                                    cout << "Assignment added on:\n" << assig_addedon;
                                    Assignment asig2(assig_name, assig_content, assig_deadline);
                                    assignment_mainside.push_back(asig2);
                                    for (auto& it : Student_Details_map) {
                                        it.second.ADD_Assignemnt(assig_name, assig_content, assig_deadline, assig_addedon);
                                        Student_Details_map[it.first] = it.second;
                                    }
                                    cout << "Assignments added successfully!!\n" << endl;
                                } else if (response4 == 5) {
                                    break;
                                } else if (response4 == 6) {
                                    exit(0);
                                } else {
                                    cout << "Invalid option. Please try again.\n";
                                }
                            }
                        } else {
                            cout << "Invalid Credentials\n";
                        }
                    }
                }
                break;
            }
            case 2: {
                string Name;
                string Enrollment_no;
                string Email_id;
                string Last_login;
                string Whatsapp_No;
                string DOB;
                int Pin_input;

                while (true) {
                    cout << "..........................................................\n";
                    cout << "Let's start adding you as an IMG member!\n\n";
                    cout << "Who are you willing to join as?\n";
                    cout << "1. Student\n";
                    cout << "2. Reviewer\n";
                    cout << "3. Previous stage\n";
                    cout << "4. Exit\n";
                    cout << "Current login at: \n" << currentDateTime();
                    cout << "..........................................................\n";

                    int key2;
                    cout << "enter: ";
                    cin >> key2;

                    if (key2 == 3) {
                        break; // Go back to the previous stage
                    } else if (key2 == 4) {
                        exit(0);
                    }

                    cout << "Enter your Name: ";
                    cin.ignore();
                    getline(cin, Name);
                    cout << "Enter your Enrollment number: ";
                    getline(cin, Enrollment_no);
                    cout << "Enter your Email address: ";
                    getline(cin, Email_id);
                    cout << "Enter your Whatsapp number: ";
                    getline(cin, Whatsapp_No);
                    cout << "Enter your DOB: ";
                    getline(cin, DOB);
                    cout << "Enter a PIN key: ";
                    cin >> Pin_input;

                    if (key2 == 1) {
                        Student s(Name, Enrollment_no, Email_id, Pin_input);
                        s.set_Whatsapp_No(Whatsapp_No);
                        s.set_DOB(DOB);

                        cout << "You have been successfully added as an IMG member!";
                        cout << "\n\n";

                        Student_Details_map[Enrollment_no] = s;
                    } else if (key2 == 2) {
                        Reviewer r(Name, Enrollment_no, Email_id, Pin_input);
                        r.set_Whatsapp_No(Whatsapp_No);
                        r.set_DOB(DOB);

                        cout << "You have been successfully added as an IMG member!";
                        cout << "\n\n";

                        reviewer_details[Enrollment_no] = r;
                    }
                }
                break;
            }
            case 3:
                exit(0);
        }
    }
}

int main() {
    page_start();
    return 0;
}