#include<iostream>
#include<iomanip>
#include<cstring>
#include<cmath>
#include<cstdio>
#include<algorithm>
#include<string>
#include<fstream>
#include<bits/stdc++.h>
using namespace std;

typedef struct Banker
{
    string account_num;//银行账户
    string name;//银行卡持有人姓名
    string sex;//银行卡持有人性别
    int password;//银行卡密码
    long long money;//银行卡金额
    int open_time;//开户日期
    string states;//开户状态
    Banker* next;
}*BankList;

//函数
void InitList();//初始化菜单 
bool account_num_exist();//判断账户是否存在 
void SelectAccount();//查询账户信息 
void Open_an_ccount();//开户 
void Pin_households();//销户 
void Modify_account_password();//修改账户密码 
void Sort_accountInfo();//账户排序 
void deposit();//存款 
void withdrawals();//取款 
void transfer();//转账 
double cal_year();//计算开户时长 
void Calculation_interest();//利息计算 
void save();//保存账户的信息 
void ReadFile();//读入文件 
void Menu();//主菜单 
void Choice_a_file();//选择待操作的文件 

//初始化菜单 
void InitList(BankList& BL)
{
    BL = new Banker;
    BL->next = NULL;
}

//判断账户是否存在
bool account_num_exist(BankList& BL, string account_num)
{
    Banker* p = BL->next;
    while (p)
    {
        if (p->account_num == account_num)
            return true;
        p = p->next;
    }
    return false;
}

//1、查询账户信息 
void SelectAccount(BankList& BL)
{
    cout << "1:按账号查找:"<<endl;
    cout << "2:按开户人姓名查找："<<endl;
    cout << "3:按开户日期查找："<<endl;
    string account_num;//账户
    string name;//姓名
    int open_time;//开户日期
    int ch;
    Banker* p = BL->next;
    cin >> ch;
    switch (ch)
    {
    case 1:
    {
        cout << "请输入需要查询的账号：";
        cin >> account_num;
        while (p)
        {
            if (p->account_num == account_num)
            {
                cout << "账户\t\t姓名\t性别\t密码\t金额\t\t开户日期\t开户状态" << endl;
                cout << p->account_num << "\t" << p->name << "\t" << p->sex << "\t" << p->password
                    << "\t" << p->money << "\t\t" << p->open_time << "\t" << p->states << endl;
                return;
            }
            p = p->next;
        }
    }
    break;
    case 2:
    {
        cout << "请输入需要查询的开户人姓名：";
        cin >> name;
        while (p)
        {
            if (p->name == name)
            {
                cout << "账户\t\t姓名\t性别\t密码\t金额\t\t开户日期\t开户状态" << endl;
                cout << p->account_num << "\t" << p->name << "\t" << p->sex << "\t" << p->password
                    << "\t" << p->money << "\t\t" << p->open_time << "\t" << p->states << endl;
                return;
            }
            p = p->next;
        }
    }
    break;
    case 3:
    {
        cout << "请输入需要查询的开户日期：";
        cin >> open_time;
        while (p)
        {
            if (p->open_time == open_time)
            {
                cout << "账户\t\t姓名\t性别\t密码\t金额\t\t开户日期\t开户状态" << endl;
                cout << p->account_num << "\t" << p->name << "\t" << p->sex << "\t" << p->password
                    << "\t" << p->money << "\t\t" << p->open_time << "\t" << p->states << endl;
                return;
            }p = p->next;
        }
    }
    break;
    default:
        cout << "输入有误！" << endl;
        break;
    }
    cout << "未查找到！" << endl;
}

//2、开户
void Open_an_ccount(BankList& BL)
{
    Banker* p = new Banker;
    p->next = NULL;
    cout << "请输入需要开户的账户：";
    cin >> p->account_num;
    if (account_num_exist(BL, p->account_num))
    {
        cout << "开户失败，账户已存在" << endl;
        return;
    }
    cout << "请输入需要开户的姓名：";
    cin >> p->name;
    cout << "请输入需要开户的性别(男，女)：";
    cin >> p->sex;
    cout << "请输入需要开户的密码(6位)：";
    cin >> p->password;
    cout << "请输入需要开户的金额：";
    cin >> p->money;
    cout << "请输入需要开户的开户日期(如：20150602)：";
    cin >> p->open_time;
    cout << "请输入需要开户的开户状态(活期，定期)：";
    cin >> p->states;
    Banker* pp = BL;
    while (pp->next)
    {
        pp = pp->next;
    }
    pp->next = p;
    cout << "开户成功！" << endl;
}

//3、销户
void Pin_households(BankList& BL)
{
    string account_num;//账户
    int password;//密码
    Banker* p = BL;
    cout << "请输入需要销户的账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入需要销户的密码:";
        cin >> password;
        while (p->next != NULL)
        {
            if (p->next->account_num == account_num && p->next->password == password)
            {
                cout << "销户成功！" << endl;
                Banker* pt = p->next;
                p->next = pt->next;
                delete pt;
                return;
            }
            p = p->next;
        }
        cout << "输入的密码有误！" << endl;
    }
    else
    {
        cout << "此账户不存在！" << endl;
    }
}

//4、修改账户密码
void Modify_account_password(BankList& BL)
{
    string account_num;//账户
    int password;//密码
    Banker* p = BL->next;
    cout << "请输入需要修改的账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入需要修改的账户密码:";
        cin >> password;
        while (p != NULL)
        {
            if (p->account_num == account_num && p->password == password)
            {
                cout << "请输入新的密码：";
                cin >> p->password;
                cout << "修改成功！" << endl;
                return;
            }
            p = p->next;
        }
        cout << "密码错误！" << endl;
    }
    else
    {
        cout << "此账户不存在！" << endl;
    }
}

//5、账户排序
void Sort_accountInfo(BankList& BL)
{
    int ch;
    cout << "1:按账号排序" << endl;
    cout << "2:按开户人姓名排序" << endl;
    cout << "3:按金额排序" << endl;
    cout << "4:按开户日期排序" << endl;
    cout << "请输入选择的排序编号：" << endl;
    cin >> ch;
    Banker* p1 = BL->next;
    switch (ch)
    {
    case 1:
    {
        for (; p1->next != NULL; p1 = p1->next)
        {
            for (Banker* p2 = p1->next; p2 != NULL; p2 = p2->next)
            {
                if (p1->account_num > p2->account_num)//升序排列
                {
                    Banker* p11 = p1->next;
                    Banker* p22 = p2->next;
                    Banker t = *p1;
                    *p1 = *p2;
                    *p2 = t;
                    p1->next = p11;
                    p2->next = p22;
                }
            }
        }
        cout << "排序成功！" << endl;
    }
    break;
    case 2:
    {
        for (; p1->next != NULL; p1 = p1->next)
        {
            for (Banker* p2 = p1->next; p2 != NULL; p2 = p2->next)
            {
                if (p1->name > p2->name)//升序排列
                {
                    Banker* p11 = p1->next;
                    Banker* p22 = p2->next;
                    Banker t = *p1;
                    *p1 = *p2;
                    *p2 = t;
                    p1->next = p11;
                    p2->next = p22;
                }
            }
        }
        cout << "排序成功！" << endl;
    }
    break;
    case 3:
    {
        for (; p1->next != NULL; p1 = p1->next)
        {
            for (Banker* p2 = p1->next; p2 != NULL; p2 = p2->next)
            {
                if (p1->money > p2->money)//升序排列
                {
                    Banker* p11 = p1->next;
                    Banker* p22 = p2->next;
                    Banker t = *p1;
                    *p1 = *p2;
                    *p2 = t;
                    p1->next = p11;
                    p2->next = p22;
                }
            }
        }
        cout << "排序成功！" << endl;
    }
    break;
    case 4:
    {
        for (; p1->next != NULL; p1 = p1->next)
        {
            for (Banker* p2 = p1->next; p2 != NULL; p2 = p2->next)
            {
                if (p1->open_time > p2->open_time)//升序排列
                {
                    Banker* p11 = p1->next;
                    Banker* p22 = p2->next;
                    Banker t = *p1;
                    *p1 = *p2;
                    *p2 = t;
                    p1->next = p11;
                    p2->next = p22;
                }
            }
        }
        cout << "排序成功！" << endl;
    }
    break;
    default:
        cout << "您的输入有误！" << endl;
    }
}

//6、存款
void deposit(BankList& BL)
{
    string account_num;//账户
    int password;//密码
    Banker* p = BL->next;
    cout << "请输入需要存款的账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入需要存款的账户密码:";
        cin >> password;
        while (p != NULL)
        {
            if (p->account_num == account_num && p->password == password)
            {
                cout << "请输入存款金额：";
                long long m;
                cin >> m;
                p->money += m;
                cout << "存款成功！" << endl;
                return;
            }
            p = p->next;
        }
        cout << "密码错误！" << endl;
    }
    else
    {
        cout << "此账户不存在！" << endl;
    }
}

//7、取款
void withdrawals(BankList& BL)
{
    string account_num;//账户
    int password;//密码
    Banker* p = BL->next;
    cout << "请输入需要取款的账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入需要取款的账户密码:";
        cin >> password;
        while (p != NULL)
        {
            if (p->account_num == account_num && p->password == password)
            {
                cout << "请输入您的取款金额：";
                long long m;
                cin >> m;
                if (p->money >= m)
                {
                    p->money -= m;

                    cout << "取款成功！" << endl;
                    cout << "当前账户信息如下：" << endl;
                    cout << "账户\t\t姓名\t性别\t密码\t金额\t开户日期\t开户状态" << endl;
                    cout << p->account_num << "\t" << p->name << "\t" << p->sex << "\t" << p->password
                        << "\t" << p->money << "\t" << p->open_time << "\t" << p->states << endl;
                    return;
                }
                else
                {
                    cout << "余额不足！" << endl;
                    return;
                }
            }
            p = p->next;
        }
        cout << "密码错误！" << endl;
    }
    else
    {
        cout << "此账户不存在！" << endl;
    }
}
void ReadFile(BankList&, string);

void save(BankList& BL, string file);

//8、转账
void transfer(BankList& BL)
{
    Banker* p1 = BL->next;

    BankList bk;
    InitList(bk);

    string bank1,bank2,account_num;//银行名，账户
    int password;//密码
    cout << "请输入转账方所在银行：";
    cin >> bank1;
    bank1 += ".txt";
    cout << "请输入收款方所在银行：";
    cin >> bank2;
    bank2 += ".txt";
    ReadFile(bk, bank2);
    Banker* p2 = bk->next;
    cout << "请输入转账方账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入密码:";
        cin >> password;
        while (p1 != NULL)
        {
            if (p1->account_num == account_num && p1->password == password)
            {

                cout << "请输入收款方账户：";
                cin >> account_num;
                while (p2)
                {
                    if (p2->account_num == account_num)
                    {
                        long long m;
                        cout << "请输入转账金额：";
                        cin >> m;
                        if (bank1 == bank2)
                        {
                            if (p1->money >= m)
                            {
                                p1->money -= m;
                                p2->money += m;
                                cout << "转账成功！" << endl;
                                cout << "当前账户信息如下：" << endl;
                                cout << "账户\t\t姓名\t性别\t密码\t金额\t开户日期\t开户状态" << endl;
                                cout << p1->account_num << "\t" << p1->name << "\t" << p1->sex
                                    << "\t" << p1->password
                                    << "\t" << p1->money << "\t" << p1->open_time << "\t"
                                    << p1->states << endl;
                                save(bk, bank2);
                                return;
                            }
                            else
                            {
                                cout << "余额不足！" << endl;
                                return;
                            }
                        }
                        else
                        {
                            cout << "收取手续费：" << m * 0.01 << " 元！" << endl;
                            if (p1->money >= m + m * 0.01)
                            {
                                p1->money -= m;
                                p2->money += m;
                                cout << "转账成功！" << endl;
                                cout << "当前账户信息如下：" << endl;
                                cout << "账户\t\t姓名\t性别\t密码\t金额\t开户日期\t开户状态" << endl;
                                cout << p1->account_num << "\t" << p1->name << "\t" << p1->sex
                                    << "\t" << p1->password
                                    << "\t" << p1->money << "\t" << p1->open_time << "\t"
                                    << p1->states << endl;
                                save(bk, bank2);
                                return;
                            }
                            else
                            {
                                cout << "余额不足！" << endl;
                                return;
                            }
                        }
                    }
                    p2 = p2->next;
                }
                cout << "账户不存在" << endl;
            }
            p1 = p1->next;
        }
        cout << "密码错误！" << endl;
    }
    else
    {
        cout << "账户不存在！" << endl;
    }
}


double cal_year(int a, int b)
{
    int year1 = a / 10000;
    int year2 = b / 10000;
    int month1 = a / 100 % 100;
    int month2 = b / 100 % 100;
    int day1 = a % 100;
    int day2 = b % 100;
    double year = 0;
    if (year1 == year2)
        year = 0.5;
    else if (month2 == month1 && day1 == day2)
    {
        year = year2 - year1;
    }
    else if (month2<month1 || month2 == month1 && day1>day2)
    {
        year = year2 - year1 - 0.5;
    }
    else if (month2 > month1 || month2 == month1 && day1 < day2)
    {
        year = year2 - year1 + 0.5;
    }
    return year;
}


//9、计算利息
void Calculation_interest(BankList& BL)
{
    string account_num;//账户
    int password;//密码
    Banker* p = BL->next;
    cout << "请输入账户：";
    cin >> account_num;
    if (account_num_exist(BL, account_num))
    {
        cout << "请输入密码:";
        cin >> password;
        while (p != NULL)
        {
            if (p->account_num == account_num && p->password == password)
            {
                cout << "请输入存款到期时间：";
                int end_time;
                double  rate = 0;
                cin >> end_time;
                double year = cal_year(p->open_time, end_time);
                int year2 = year;
                if (p->states == "活期")
                {
                    for (int i = 1; i <= year2; i++)
                    {
                        rate += (rate + p->money) * 0.0035;
                    }
                    if (year > year2 + 0.1)
                        rate += (rate + p->money) * 0.0035 * 0.5;
                }
                else if (p->states == "定期")
                {
                    for (int i = 1; i <= year; i++)
                    {
                        if (i == 1)
                        {
                            rate += (rate + p->money) * 0.0275;
                        }
                        else if (i == 2)
                        {
                            rate += (rate + p->money) * 0.0335;
                        }
                        else if (i >= 3)
                        {
                            rate += (rate + p->money) * 0.04;
                        }
                    }
                    int year2 = year;
                    if (fabs(year - 0.5) <= 1e-6)
                        rate += (rate + p->money) * 0.0275 * 0.5;
                    else if (fabs(year - 1.5) <= 1e-6)
                        rate += (rate + p->money) * 0.0335 * 0.5;
                    else if (fabs(year - 2.5) <= 1e-6)
                        rate += (rate + p->money) * 0.04 * 0.5;
                }
                cout << "您获得的利息为：" << rate << endl;
                return;
            }
            p = p->next;
        }
        cout << "密码错误！" << endl;
    }
    else
    {
        cout << "账户不存在！" << endl;
    }
}


//10、保存账户信息
void save(BankList& BL, string file)
{
    ofstream ofs;
    ofs.open(file.c_str());
    Banker* p = BL->next;
    while (p)
    {
        ofs << p->account_num << "\t" << p->name << "\t" << p->sex << "\t" << p->password
            << "\t" << p->money << "\t" << p->open_time << "\t" << p->states << endl;
        p = p->next;
    }
    ofs.close();
    cout << "保存成功！" << endl;
}


void ReadFile(BankList& BL, string file)
{
    ifstream ifs;
    Banker* p = BL;
    ifs.open(file.c_str());
    if (!ifs)
        return;
    while (!ifs.eof())
    {
        Banker* pt = new Banker;
        pt->next = NULL;
        ifs >> pt->account_num >> pt->name >> pt->sex >> pt->password
            >> pt->money >> pt->open_time >> pt->states;
        if (ifs.eof())
            break;
        p->next = pt;
        p = pt;
    }
    ifs.close();
}

void Menu()//菜单界面
{
    system("cls");
    system("color F0");
    cout << "******************************" << endl;
    cout << "*      银行账户管理系统      *" << endl;
    cout << "******************************" << endl;
    cout << "*1、查询账户信息             *" << endl;
    cout << "*2、开户                     *" << endl;
    cout << "*3、销户                     *" << endl;
    cout << "*4、修改账户密码             *" << endl;
    cout << "*5、账户排序                 *" << endl;
    cout << "*6、存款                     *" << endl;
    cout << "*7、取款                     *" << endl;
    cout << "*8、转账                     *" << endl;
    cout << "*9、计算利息                 *" << endl;
    cout << "*10、保存账户信息            *" << endl;
    cout << "*0、退出系统                 *" << endl;
    cout << "******************************" << endl;
}

//选择需要操作的文件 
void Choice_a_file(BankList& BL,string &FileName)
{
    int ch;
    system("color F0");
    cout << "1：a.txt" << endl;
    cout << "2：b.txt" << endl;
    cout << "3：c.txt" << endl;
    cout << "4：d.txt" << endl;
    cout << "5：e.txt" << endl;
    cout << "0：退出" << endl;
    while (1)
    {
        cout << "请选择需要操作的文件:" << endl;
        cin >> ch;
        if (ch == 1)
        {
            FileName = "a.txt";
            ReadFile(BL, "a.txt");
            break;
        }
        else if (ch == 2)
        {
            FileName = "b.txt";
            ReadFile(BL, "b.txt");
            break;
        }
        else if (ch == 3)
        {
            FileName = "c.txt";
            ReadFile(BL, "c.txt");
            break;
        }
        else if (ch == 4)
        {
            FileName = "d.txt";
            ReadFile(BL, "d.txt");
            break;
        }
        else if (ch == 5)
        {
            FileName = "e.txt";
            ReadFile(BL, "e.txt");
            break;
        }
        else if (ch == 0)
        {
            exit(0);
        }
        else
        {
            cout << "您的输入有误！" << endl;
        }
    }
}

int main()
{
    BankList BL;
    InitList(BL);
    int choice;
    string FileName;
    Choice_a_file(BL,FileName);//选择待操作文件
    while (1)
    {
        //菜单调用 
        Menu();
        cout << "请选择您要进行的操作" << endl;
        cin >> choice;
        switch (choice)
        {
        case 1: //1、查询账户信息
            SelectAccount(BL);
            break;
        case 2: //2、开户
            Open_an_ccount(BL);
            break;
        case 3: //3、销户
            Pin_households(BL);
            break;
        case 4: //4、修改账户密码
            Modify_account_password(BL);
            break;
        case 5: //5、账户排序
            Sort_accountInfo(BL);
            break;
        case 6: //6、存款
            deposit(BL);
            break;
        case 7: //7、取款
            withdrawals(BL);
            break;
        case 8: //8、转账
            transfer(BL);
            break;
        case 9: //9、计算利息
            Calculation_interest(BL);
            break;
        case 10: //10、保存账户信息
            save(BL, FileName);
            break;
        case 0: //0、退出系统
            cout << "欢迎下次使用" << endl;
            system("pause");
            return 0;
            break;
        default:
            break;
        }
        system("pause");
    }

    return 0;
}