/* editStudent
edit an existing student, and display details
as defaults for input
in: pointer to a student to edit
out: none
*/
void editStudent(struct STUDENT *s)
{
char firstName[32]; // store input first name
char lastName[32]; // store input last name
int completedCredits; // store input credits
struct DATE enrollmentDate; // store input enrollment date
// store an "empty date" to compare with entered date to indicate no change
struct DATE noDate = {0};
do {
// display what # student we're editing
printf("\nEditing Student #%d\n", numStudents + 1);
// input first name & update only if input not empty
printf("First name: [%s] ", s->firstName);
strcpy(firstName, inputString("", 32));
if (strcmp(firstName, "") == 0) strcpy(firstName, s->firstName);
// input last name & update only if input not empty
printf("Last name: [%s] ", s->lastName);
strcpy(lastName, inputString("", 32));
if (strcmp(lastName, "") == 0) strcpy(lastName, s->lastName);
// input completed credits & update only if input not empty
printf("Completed credits: [%d] ", s->completedCredits);
completedCredits = inputInteger("");
if (completedCredits == 0) completedCredits = s->completedCredits;
// input enrollment date & update only if input not empty
printf("Enrollment date (mm/dd/yyyy): [%s] ", formatDate(s->enrollmentDate));
enrollmentDate = inputDate("");
// since inputDate returns a struct DATE, we must check against an "empty" date
if (compDates(enrollmentDate, noDate) == 0) enrollmentDate = s->enrollmentDate;
// print details entered
printf("\nFirst name: %s\n"
"Last name: %s\n"
"Completed credits: %d\n"
"Enrollment date: %s\n",
firstName,
lastName,
completedCredits,
formatDate(enrollmentDate));
// confirm with user whether info correct, repeat input if not
} while (!confirm("\nInfo correct (y/n) ?"));
// store entered data back into the record pointed to by s
strcpy(s->firstName, firstName);
strcpy(s->lastName, lastName);
s->completedCredits = completedCredits;
s->enrollmentDate = enrollmentDate;
}
void Box::SetProgramRecorded()
{
string name;
int aux=-1;
int i = 0;
cout << "Insert a Program's name: ";
cin.clear();
cin.ignore();
getline(cin, name);
cout << endl << endl << endl;
int existInRecord = false;
for (int j = 0; j < recordList.size(); j++)
{
if (string_to_upper(name) == string_to_upper(recordList[j].getName()))
{
existInRecord = true;
cout << "The program \"" << name << "\", is in the list of recorded programs." << endl << endl << endl << endl;
break;
}
}
if (!existInRecord)
{
for (i; i < channels.size(); i++)
{
aux = searchProgram(string_to_upper(name), channels[i]);
if (aux >= 0)
{
break;
}
}
if (aux >= 0)
{
if (compDates(GetCurrentDate(), channels[i].getPrograms()[aux].getDate()))
{
cout << "The program \"" << channels[i].getPrograms()[aux].getName();
cout << "\", from the channel \"" << channels[i].getName() << "\", was sucefully\n";
cout << "set to be recorded." << endl << endl << endl << endl;
recordList.push_back(channels[i].getPrograms()[aux]);
}
else
{
cout << "The program \"" << channels[i].getPrograms()[aux].getName();
cout << "\", from the channel \"" << channels[i].getName() << "\", has been reproduced." << endl << endl << endl << endl;
}
}
else
cout << "The program \"" << name << "\" doesn't exist." << endl << endl << endl << endl;
}
}
void Box::updateProgramState(string &programn)
{
system("CLS");
cout << " _ _ _ " << endl;
cout << " / \\ __| |_ ____ _ _ __ ___ ___ __| |" << endl;
cout << " / _ \\ / _` \\ \\ / / _` | '_ \\ / __/ _ \\/ _` |" << endl;
cout << " / ___ \\ (_| |\\ V / (_| | | | | (_| __/ (_| |" << endl;
cout << " /_/ \\_\\__,_| \\_/ \\__,_|_| |_|\\___\\___|\\__,_|" << endl << endl;
cout << "\t \t Update a program" << endl << endl << endl;
int channel_position = 0;
int program_position = 0;
for (channel_position; channel_position < channels.size(); channel_position++)
{
program_position = searchProgram(programn, channels[channel_position]);
if (program_position != -1)
break;
}
if (compDates(GetCurrentDate(), channels[channel_position].getPrograms()[program_position].getDate()))
{
cout << "The program \"" << channels[channel_position].getPrograms()[program_position].getName() << "\"";
cout << " wasn't reproduced yet";
Sleep(3000);
}
else
{
cout << endl << endl << "The record state of the program \"" << channels[channel_position].getPrograms()[program_position].getName() << "\"";
cout << " was change to \"";
if (channels[channel_position].getPrograms()[program_position].getState())
cout << "true";
else
cout << "false";
cout << "\"";
Sleep(3000);
channels[channel_position].setProgramState(program_position);
}
}
/* sortStudents
sort the array of students based on user preference
(uses simple bubble sort algorithm)
in: none
out: none
*/
void sortStudents()
{
// declarations
char sortField; // user entered field to sort
char fieldName[20]; // name of the field to sort
int i = 0; // loop counter for sorting
int sorted = 0; // repeat loop for bubble sort
int swap = 0; // whether to swap students[i] & students[i+1]
int desc = 0; // if we're sorting in descending order
struct STUDENT tempStudent; // temp struct to store student for swapping
// no need to sort only one or 0 students!
if (numStudents < 2) return;
// print menu choices
printf("Sort by:\t"
"L) Last Name\n\t\t"
"F) First Name\n\t\t"
"E) Enrollment Date\n\t\t"
"C) Completed Credits ? ");
// get sort field from user
sortField = toupper(inputString("", 2)[0]);
// ask user whether to sort in descending order
desc = confirm("\nDescending (just hit Enter for ascending) (y/n) ? ");
// set the fieldName for display back to user
switch (sortField)
{
case 'F':
strcpy(fieldName, "First name");
break;
case 'E':
strcpy(fieldName, "Enrollment date");
break;
case 'C':
strcpy(fieldName, "Completed credits");
break;
case 'L':
default:
strcpy(fieldName, "Last name");
break;
}
// print back to user how we are sorting
printf("\nSorting by: %s, %s ...\n\n",
fieldName, desc ? "Descending" : "Ascending");
while (!sorted) // repeat loop for bubble sort
{
sorted = 1; // "assume" sorted until we swap
// loop through all students - 1
// (because we're swapping [i] with [i+1])
for (i = 0; i < numStudents - 1; i++)
{
swap = 0; // do not swap unless flagged
switch (sortField) // check by field:
{
case 'F': // first name
swap = ((strcmp(students[i+1].firstName, students[i].firstName) < 0)
|| (strcmp(students[i+1].firstName, students[i].firstName) == 0
&& strcmp(students[i+1].lastName, students[i].lastName) < 0));
break;
case 'E': // enrollment date
swap = (compDates(students[i].enrollmentDate, students[i+1].enrollmentDate) > 0);
break;
case 'C': // completed credits
swap = (students[i].completedCredits > students[i+1].completedCredits);
break;
case 'L': // last name
default:
swap = ((strcmp(students[i+1].lastName, students[i].lastName) < 0)
|| (strcmp(students[i+1].lastName, students[i].lastName) == 0
&& strcmp(students[i+1].firstName, students[i].firstName) < 0));
break;
}
/* XOR desc ^ swap:
if swap == 1, order must be swapped for ascending;
if swap == 0, order must be swapped for descending */
if (desc ^ swap)
{
// swap students[i] and students[i+1] using temp variable
tempStudent = students[i];
students[i] = students[i+1];
students[i+1] = tempStudent;
sorted = 0; // we had to swap, so repeat the loop
}
}
}
// when done sorting, print the sorted student list
listStudents();
}
