// refactoringmotherfucker.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <vector>
#include <memory>

// before refactoring of split loop
class People {
public:
	People(double _age,double _salary) : age(_age), salary(_salary) {
	}
	double age;
	double salary;
};

class BeforeApplication
{
public:
	void doWork() {
		init();
		printValues();
	}
	void init() {
		peoples_.push_back(std::make_shared<People>(23, 8000));
		peoples_.push_back(std::make_shared<People>(25, 13000));
		peoples_.push_back(std::make_shared<People>(30, 15000));
	}

	void printValues() {
		double averageAge = 0;
		double totalSalary = 0;
		for (int i = 0; i < peoples_.size(); i++)
		{
			averageAge += peoples_.at(i)->age;
			totalSalary += peoples_.at(i)->salary;
		}
		averageAge = averageAge / peoples_.size();

		std::cout << "the average age is: " << averageAge << std::endl;
		std::cout << "the total salary is: " << totalSalary << std::endl;
	}
private:
	std::vector<std::shared_ptr<People> > peoples_;
};

// after refactoring of split loop
class AfterApplication
{
public:
	void doWork() {
		init();
		printValues();
	}

	void init() {
		peoples_.push_back(std::make_shared<People>(23, 8000));
		peoples_.push_back(std::make_shared<People>(25, 13000));
		peoples_.push_back(std::make_shared<People>(30, 15000));
	}

	void printValues() {
		std::cout << "the average age is: " << averageAge() << std::endl;
		std::cout << "the total salary is: " << totalSalary() << std::endl;
	}

	double averageAge() {
		double result = 0;
		for (int i = 0; i < peoples_.size(); i++) {
			result += peoples_[i]->age;
		}
		return result / peoples_.size();
	}

	double totalSalary() {
		double result = 0;
		for (int i = 0; i < peoples_.size(); i++) {
			result += peoples_[i]->salary;
		}
		return result;
	}
private:
	std::vector<std::shared_ptr<People> > peoples_;
};

int main()
{
	// refactoring before
	std::shared_ptr<BeforeApplication> before_app = std::make_shared<BeforeApplication>();
	before_app->doWork();

	// refactoring after
	std::shared_ptr<AfterApplication> after_app = std::make_shared<AfterApplication>();
	after_app->doWork();

}