#include<bits/stdc++.h>
using namespace std;
FILE *fp;
int i=0,j=0;
struct Employee
{
    int id;
    string name;
    int age;
    string blood_group;
    string gender;
    int project_id;
    string team_leader;
    string role;
} EMP[100];
struct Project
{
    int pro_id;
    string project_name;
    string employee_name;
    int budget;
    int ETA;
    int no_of_employee;
    string status;
} PRO[100];
void creating_database()
{
    fp=fopen("employee.txt","a");
    fprintf(fp,"ID\tNAME\tAGE\tBLD_GROUP\tGENDER\tPRO_ID\tTEAM_LEAD\tROLE\n");
    fclose(fp);
    fp=fopen("project.txt","a");
    fprintf(fp,"PRO_ID\tPRO_NAME\tEMPLOY_NAME\tBUDGET\tETA(months)\tNO_OF_EMPLOY\tSTATUS\n");
    fclose(fp);
}
void view_database(char fileName[100])
{
    char c,buf[1024];
    fp=fopen(fileName, "r");

    if(fp==NULL)
    {
        printf("Cannot open file \n",fileName);
        exit(0);
    }
    c=fgetc(fp);
    while(c!=EOF)
    {
        printf("%c",c);
        c=fgetc(fp);
    }

    fclose(fp);
}

void insertion_employee()
{
    cout<<"ID : ";
    scanf("%d",&EMP[i].id);
    cout<<"Name : ";
    scanf("%s",&EMP[i].name);
    cout<<"Age : ";
    scanf("%d",&EMP[i].age);
    cout<<"Blood Group : ";
    scanf("%s",&EMP[i].blood_group);
    cout<<"Gender : ";
    scanf("%s",&EMP[i].gender);
    cout<<"Project_ID : ";
    scanf("%d",&EMP[i].project_id);
    cout<<"Team Leader : ";
    scanf("%s",&EMP[i].team_leader);
    cout<<"Role : ";
    scanf("%s",&EMP[i].role);

    fp=fopen("employee.txt","a");
    fprintf(fp,"\n%d\t %s\t %d\t %s\t %s\t %d\t %s\t %s\n",EMP[i].id,EMP[i].name,EMP[i].age,EMP[i].blood_group,EMP[i].gender,EMP[i].project_id,EMP[i].team_leader,EMP[i].role);
    fclose(fp);
    i++;

}
void insertion_project()
{

    cout<<"Project_ID : ";
    scanf("%d",&PRO[j].pro_id);
    cout<<"Project Name : ";
    scanf("%s",&PRO[j].project_name);
    cout<<"Employer Name : ";
    scanf("%s",&PRO[j].employee_name);
    cout<<"Budget : ";
    scanf("%d",&PRO[j].budget);
    cout<<"ETA : ";
    scanf("%d",&PRO[j].ETA);
    cout<<"No of Employees : ";
    scanf("%d",&PRO[j].no_of_employee);
    cout<<"Status : ";
    scanf("%s",&PRO[j].status);
    fp=fopen("project.txt","a");
    fprintf(fp,"\n%d\t %s\t %s\t %d\t %d\t %d\t %s\n",PRO[j].pro_id,PRO[j].project_name,PRO[j].employee_name,PRO[j].budget,PRO[j].ETA,PRO[j].no_of_employee,PRO[j].status);
    fclose(fp);
    j++;

}
void drop()
{
    for(int y=0;y<j;y++)
    {
        if(PRO[y].budget<60000)
        {
            PRO[y].pro_id=-1;
            PRO[y].budget=-1;
            PRO[y].ETA=-1;
            PRO[y].project_name='\0';
            PRO[y].employee_name='\0';
            PRO[y].no_of_employee=-1;
            PRO[y].status='\0';
        }
    }
}
void change()
{
    for(int x=0;x<j;x++)
    {
        if(PRO[x].budget>60000)
        {
            PRO[x].status="ongoing";
        }
    }
}
int main()
{
    cout<<"\t\t\t\tNIVALO TECHNOLOGIES LTD"<<endl;
    creating_database();
    while(1)
    {
        cout<<"WHAT YOU WANT TO DO?\n1.View Database\n2.Insert into Database\n3.SPECIAL OPERATIONS\n0.EXIT\n";
        int option;
        cin>>option;
        if(option==1)
        {
            cout<<"ENTER YOUR CHOICE\n\t(a) Employee\t(b) Project\n";
            char choice;
            cin>>choice;
            if(choice=='a')
                view_database("employee.txt");
            else
                view_database("project.txt");

        }
        else if(option==2)
        {
            cout<<"ENTER YOUR CHOICE\n\t(a) Employee\t(b) Project\n";
            char choice2;
            cin>>choice2;
            if(choice2=='a')
                insertion_employee();
            else
                insertion_project();
        }
        else if(option==3)
        {
            cout<<"\t(a)Delete projects under 60,000$\t(b)Changing Status for budget greater than 60,000$\n";
            char choice3;
            cin>>choice3;
            if(choice3=='a')
                drop();
            else
                change();
        }
        else if(option==0)
                break;

    }
    return 0;

}