#include "Teacher.h"
using namespace std;



CourseList* Teacher::teacherCourse(CourseList db_course_list){
	return db_course_list.findCourseByFacutyId(this->tc_identify);
}
CourseList* Teacher::tcSumCourse(CourseList db_course_list,StudentCourseList db_st_course_list){
	CourseList* tc_sumed = new CourseList();
	CourseList* tc = teacherCourse(db_course_list);
	StudentCourseList* data = new StudentCourseList();
	int i = 0;
	for (i; i < tc->size; i++){
		data = db_st_course_list.findStudentJoinCourse(tc->list[i].course_id);
		if (data->isGrade()){
			tc_sumed->addToList(tc->list[i]);
		}
	}
	return tc_sumed;
}
CourseList* Teacher::tcNotSumCourse(CourseList db_course_list, StudentCourseList db_st_course_list){
	CourseList* tc_nsumed = new CourseList();
	CourseList* tc = teacherCourse(db_course_list);
	StudentCourseList* data = new StudentCourseList();
	int i = 0;
	for (i; i < tc->size; i++){
		data = db_st_course_list.findStudentJoinCourse(tc->list[i].course_id);
		if (!(data->isGrade())){
			tc_nsumed->addToList(tc->list[i]);
		}
	}
	return tc_nsumed;
}
bool Teacher::gradingCourse(StudentCourseList& st_join_course){

	int flag = 0;
	cout << endl;
	cout << setw(40) << right << "\nStudent List:\n" << endl;
	cout << setw(5) << left << "No.";
	cout << setw(30) << left << "Student ID";
	cout << setw(20) << right << "Point\n";
	cout << setfill('-');
	cout << setw(55) << "-" << endl;
	cout << setfill(' ');
	for (size_t j = 0; j < st_join_course.size; j++){
		cout << setw(5) << left << j + 1;
		cout << setw(30) << left << st_join_course.list[j].st_num;
		cout << setw(20) << right << st_join_course.list[j].st_point.list[0] << endl;
	}

	if (st_join_course.isGrade()){
		double index;
		//int a = 0;
		do{
			double spoint;
			cout << "Input student's index  to modify grade (input 0 to exit): ";	
			cin >> index;
			if (cin.fail()) {
				index = -1;
			}
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			if (index<0 || index>st_join_course.size || index != (int)index){
				cout << "Wrong input, try again!\n";
				continue;
			}
			if (index == 0){
				flag++;
				break;
			}
			do{
				int i = index;
				cout << "Input new grade for " << st_join_course.list[i - 1].st_num << " : ";
				cin >> spoint;
				if (cin.fail()) {
					spoint = -1;
				}
				cin.clear();
				cin.ignore(INT_MAX, '\n');
				if (spoint < 0 || spoint > 10) {
					cout << "Wrong input, try again!\n";
					continue;
				}
				st_join_course.list[i - 1].st_point.list[0] = spoint;
				flag++;
			} while (spoint < 0 || spoint > 10 || cin.bad());
		} while (index != 0 || cin.bad());
	}

	else{
		cout << "Sumarize ( input 11 to skip to next student, 12 to cancel,14 to finish (if you are busy) ) : \n";
		int flag1 = 0;
		int n= 0;
		for (int i = 0; i<st_join_course.size; ++i){
			if (flag1 == 1) break;
			double spoint;
			do{
				cout << st_join_course.list[i].st_num << " : ";
				cin >> spoint;
				cin.clear();
				cin.ignore(INT_MAX, '\n');
				if (spoint == 11){
					spoint = -1;
				}
				else if (spoint == 12){
					for (int i = 0; i < n; i++){
						st_join_course.list[i].st_point.list[0] = -1;
					}
					return true;
				}
				else if (spoint == 14){
					flag1 = 1;
					spoint = -1;
					break;
				}
				else if (spoint < 0 || spoint > 10 || cin.bad()){
					cout << "Wrong input, try again!\n";
					continue;
				}
			} while (spoint < 0 || spoint > 10 || cin.bad());
			st_join_course.list[i].st_point.list[0] = spoint;
			n++;
		}
	}
	if (flag!=1){
		cout << "\nSuccessfully modify student's grade!\n";
		cout << "Changes preview: \n";
		//*data = db_st_course_list.findStudentJoinCourse(tc_open_course->list[i].course_id); //lay danh sach sinh vien + diem ma sinh vien tham gia course;
		cout << endl;
		//cout << setw(40) << right << "__Danh Sach Sinh Vien Da Dang Ky__\n" << endl;
		cout << setw(5) << left << "No.";
		cout << setw(30) << left << "Student ID";
		cout << setw(20) << right << "Point\n";
		cout << setfill('-');
		cout << setw(55) << "-" << endl;
		cout << setfill(' ');
		for (size_t j = 0; j < st_join_course.size; j++){
			cout << setw(5) << left << j + 1;
			cout << setw(30) << left << st_join_course.list[j].st_num;
			cout << setw(20) << right << st_join_course.list[j].st_point.list[0] << endl;
		}
	}
	return true;
}
void Teacher::showTeacherCouser(CourseList tc_course,StudentCourseList st_course){
	if (tc_course.size>0){
		cout << setfill('-') << setw(115) << "-" << setfill(' ') << endl;
		cout << left << setw(5) << "STT"
			<< left << setw(20) << "Course ID"
			<< left << setw(15) << "Sub ID"
			<< left << setw(50) << "Course Name"
			<< left << setw(10) << "Credit"
			<< left << setw(10) << "Num of student"
			<< endl;
		cout << setfill('-') << setw(50) << setfill(' ') << endl;
		for (size_t i = 0; i<tc_course.size; i++) {
			cout << left << setw(5) << i + 1
				<< left << setw(20) << tc_course.list[i].course_id
				<< left << setw(15) << tc_course.list[i].sub_id
				<< left << setw(50) << tc_course.list[i].sub_name
				<< left << setw(10) << tc_course.list[i].credit
				<< left << setw(10) << tc_course.list[i].total_st
				<< endl;
		}
	}
}
bool Teacher:: openNewCourse(Teacher& tc, StudentCourseList& db_st_course_list, CourseList& db_course_list){
	cout << "\t\t\t______________________OPEN COURSE__________________________\n";
	CourseList* sum = new CourseList();
	CourseList* nsum = new CourseList();
	sum = tc.tcSumCourse(db_course_list, db_st_course_list);
	nsum = tc.tcNotSumCourse(db_course_list, db_st_course_list);
	if (nsum->size >= 5){
		cout << "You has open 5 courses for  this term so you cannot open more course.\n";
		cout << "Press Enter to go back";
		cin.get();
		return true;
	}
	else{
		string newCourse_sub_id; //ms viet tat mon hoc
		string newCourse_class_id; //nhom lop
		string newCourse_id; //ms mon hoc
		string newCourse_name; //ten mon hoc
		float newCourse_max; //so luong sv toi da
		float newCourse_ncredit; //tin chi
		Course dummy;
		do{
			do{
				cout << "\nInput new sub_course ID you want to open (input 0 to exit): ";
				cin >> newCourse_sub_id;
				cin.ignore(INT_MAX, '\n');
				if (newCourse_sub_id == "0") return true;
				if (!tc.checkNewPass(newCourse_sub_id)) cout << "New course details do not allow special sign character (, ! # @...).Try again\n";
			} while (!tc.checkNewPass(newCourse_sub_id));
			do{
				cout << "Input class group (input 0 to exit): ";
				cin >> newCourse_class_id;
				cin.ignore(INT_MAX, '\n');
				if (newCourse_class_id == "0") return true;
				if (!tc.checkNewPass(newCourse_class_id)) cout << "New course details do not allow special sign character (, ! # @...).Try again\n";
			} while (!tc.checkNewPass(newCourse_class_id));
			newCourse_id = newCourse_sub_id + newCourse_class_id;
			if (db_course_list.isCourseExist(newCourse_id, dummy)){
				cout << "You can not open an existed course. Try again! \n";
			}
		} while (db_course_list.isCourseExist(newCourse_id, dummy));

		cout << "Input new course details.\n";
		do{
			cout << "Input course name (input 0 to exit): ";
			getline(cin, newCourse_name);
			if (newCourse_name == "0") return true;
			if (!tc.checkNewPass(newCourse_name)) cout << "New course details do not allow special sign character (, ! # @...).Try again\n";
		} while (!tc.checkNewPass(newCourse_name));

		do{
			cout << "Input student number limitation (at least 10)(input 0 to exit) : "; cin >> newCourse_max;
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			if (newCourse_max == 0) return true;
			if (newCourse_max < 10 || cin.bad() || newCourse_max != (int)newCourse_max){
				cout << "Invalid input.Try again!\n";
			}
			 
		} while (cin.bad() || newCourse_max < 10 || newCourse_max != (int)newCourse_max);

		do{
			cout << "Input course's credit number (1-6) (input 0 to exit): "; cin >> newCourse_ncredit;
			cin.clear();
			cin.ignore(INT_MAX, '\n');
			if (newCourse_max == 0) return true;
			if (!cin.good() || newCourse_ncredit<1 || newCourse_ncredit>6 || newCourse_ncredit != (int)newCourse_ncredit){
				cout << "Invalid input.Try again!\n";
			}
		} while (cin.bad() || newCourse_ncredit < 1 || newCourse_ncredit>6 || newCourse_ncredit != (int)newCourse_ncredit);

		Course newCourse(newCourse_sub_id, newCourse_name, tc.tc_name, tc.tc_identify);
		newCourse.course_id = newCourse_id;
		newCourse.total_st = 0;
		newCourse.max_st = newCourse_max;
		newCourse.credit = newCourse_ncredit;
		cout << "NEW COURSE PREVIEW: \n";
		newCourse.printCourseInfo();
		char ans;
		cout << "Are you sure to open this course? [Y/N] :";
		do{
			cin >> ans;
			if (ans != 'Y' && ans != 'N'){
				cout << "Retype: ";
			}
			cin.ignore(INT_MAX, '\n');
		} while (ans != 'Y' && ans != 'N');
		if (ans == 'Y'){
			cout << "SUCESSFULLY OPEN A NEW COURSE \n";
			//cout << "Date created: " << endl;
			//std::time_t t = std::time(0);   // get time now
			//std::tm* now = std::localtime(&t);
			//std::cout << (now->tm_year + 1900) << '-' << (now->tm_mon + 1) << '-' << now->tm_mday << "\n";
			cin.ignore(INT_MAX, '\n');
			db_course_list.addToCourseList(newCourse);
			return true;
		}
		else{

			return true;
		}


	}//else right
}
bool Teacher::openCourse(CourseList& db_course_list, Course newCourse){
	Course dummy;
	if (db_course_list.isCourseExist(newCourse.course_id,dummy)) return false;
	else {
		//Course newCourse;
		db_course_list.addToCourseList(newCourse);
	}

}
bool Teacher::viewCourse(Teacher& tc, StudentCourseList& db_st_course_list, CourseList& db_course_list){
	CourseList* tc_open_course = new CourseList();
	tc_open_course = tc.teacherCourse(db_course_list); //lay danh sach nhung course ma teacher da mo
	StudentCourseList* data = new StudentCourseList();
	CourseList* tc_sum = tc.tcSumCourse(db_course_list, db_st_course_list);
	CourseList* tc_nsum = tc.tcNotSumCourse(db_course_list, db_st_course_list);
	if (tc_open_course->size == 0){
		cout << "YOU HAVE NOT OPEN ANY COURSE YET.\n";
		cin.get();
		return true;
	}
	if (tc_sum->size != 0){
		cout << "Your sumarized course: \n";
		tc.showTeacherCouser(*tc_sum, db_st_course_list);
	}
	else{
		cout << "Your sumarized course: \n";
		cout << "You have not sumarized any course yet.\n";
	}

	if (tc_nsum->size != 0){
		cout << "\nYour unsumarized course: \n";
		tc.showTeacherCouser(*tc_nsum, db_st_course_list);
	}
	else{
		cout << "\nYour unsumarized course: \n";
		cout << "All course has ben sumarized.\n";
	}
	//tc.showTeacherCouser(*tc_open_course,db_st_course_list);
	if (tc_open_course->size == 0){
		cout << "Try opening a course in main menu.\n";
		cout << "PRESS ENTER TO GO BACK";
		cin.get();
		return true;
	}
	cout << "PRESS ENTER TO GO BACK";
	cin.get();
	return true;
}

///Teacher_List_Modify

TeacherList TeacherList::findTeacherByNameKeyword(string keyword[], size_t n){
	TeacherList* tList = new TeacherList();
	for (size_t i = 0; i < this->size; i++) {
		for (size_t j = 0; j < n; j++) {
			if (list[i].tc_name.find(keyword[j]) != string::npos) {
				Teacher data = list[i];
				tList->addToList(data);
				break;
			}
		}
	}
	return *tList;
}

bool TeacherList::getTeacherInfo(Teacher& tc){

	for (size_t i = 0; i < size; i++) {

		if (tc.username.compare(this->list[i].tc_identify) == 0)
		{
			tc.tc_identify = this->list[i].tc_identify;
			tc.tc_name = this->list[i].tc_name;
			tc.tc_birthday = this->list[i].tc_birthday;
			tc.tc_phone_number = this->list[i].tc_phone_number;
			tc.tc_home_town = this->list[i].tc_home_town;
			return true;
		}
	}
	return false;

}

void TeacherList::removeTeacherByNameKeyword(string keyword[], size_t n){
	for (size_t i = 0; i < size; i++) {
		for (size_t j = 0; j < n; j++) {
			if (list[i].tc_name.find(keyword[j]) != string::npos) {
				removeFromList(i);
				break;
			}
		}
	}
}

void TeacherList::updateTeacherList(Teacher data){
	for (size_t i = 0; i < size; i++) {
		if (data.tc_identify == this->list[i].tc_identify) {
			this->list[i] = data;
		}
	}
}

void TeacherList::print()
{
	cout << setw(10) << "ID" << setw(30) << "Name" << setw(15) << "Birthday" << setw(15) << "Phone Number" << setw(50) << "Hometown" << endl;
	for (int i = 0; i < this->size; i++)
	{
		cout
			<< setw(10) << this->list[i].tc_identify
			<< setw(30) << this->list[i].tc_name
			<< setw(15) << this->list[i].tc_birthday
			<< setw(15) << this->list[i].tc_phone_number
			<< setw(50) << this->list[i].tc_home_town
			<< endl;
	}
}