#include "database.cpp"
#include <string.h>
// 123
// 录入航班信息
int inputSeatClass()//判定座位数输入是否正确
{
    char x;
    cin >> x;
    if(x >= '0' && x <= '2')
        return x - '0';
    else
    {
        cout << "输入错误，请重新输入[0,1,2]" << endl;
        return inputSeatClass(); // 递归直到输入正确为止，有stack overflow的风险，但应该没事，下面同理
    }
}
int inputSeatCount(int minVal)//判定座位数输入是否正确
{
    char c[200];
    cin >> c;
    int temp=0;
    for(int i=0;i<strlen(c);i++)
    {
        if('0'>c[i]||c[i]>'9')
        {
            cout<<"输入错误，请重新输入"<<endl;
            temp=1;
            break;
        }
    }
    if(temp)
        return inputSeatCount(minVal);
    stringstream ss;
    ss<<c;
    int x;
    ss>>x;
    if(x >= minVal)
        return x;
    else
    {
        cout << "输入错误，请重新输入" << endl;
        return inputSeatCount(minVal);
    }
}
int addFlight(FL_Node& FL) {
    string destination;
    string flight_num;
    string flight_regist;
    string flight_data;
    int maxseat[3];
    int bookedseat[3]={0,0,0};
    cout<<"请输入终点站名";
    cin>>destination;
    cout<<"请输入航班号";
    cin>>flight_num;
    cout<<"请输入飞机注册号";
    cin>>flight_regist;
    cout<<"请输入飞行日期";
    cin>>flight_data;

    // 检测是否有终点站、航班号、飞行日期相同的航班
    FL_Node p = FL;
    while (p != NULL)
    {
        if (p->destination == destination && p->flightno == flight_num && p->date == flight_data)
        {
            cout << "已存在相同航班" << endl;
            return ERROR;
        }
        p = p->next;
    }

    cout<<"请输入头等舱额定座位数";
    maxseat[0] = inputSeatCount(0);
    cout<<"请输入商务舱额定座位数";
    maxseat[1] = inputSeatCount(0);
    cout<<"请输入经济舱额定座位数";
    maxseat[2] = inputSeatCount(1);
    new_flight(FL,destination,flight_num,flight_regist,flight_data,maxseat,bookedseat);
    return OK;
}
void queryRoute(FL_Node FL_head, const string &flight_destination) // 查询航班
{
    FL_Node p = FL_head;
    bool found = false;
    string lastDate = p->date;
    while (p != NULL)
    {
        if (p->destination == flight_destination)
        {
            cout<<endl;
            found = true;
            cout << "航班号：" << p->flightno << endl;
            cout << "飞机注册号：" << p->registerno << endl;
            cout << "飞行星期：" << p->date << endl;

            // 查找最近一天的航班日期
            
            FL_Node q = p->next;
            while (q != NULL && q->destination == flight_destination)
            {
                lastDate = q->date;
                q = q->next;
            }
            

            // 输出余票量
            int availableSeats = 0;
            for (int i = 0; i < 3; i++)
            {
                availableSeats += p->maxseat[i] - p->bookedseat[i];
            }
            cout << "总余票额：" << availableSeats << endl;

            int temp = p->maxseat[0] - p->bookedseat[0];
            cout << (temp ? "头等舱余票：" + to_string(temp) : "头等舱无票") << endl;
            temp = p->maxseat[1] - p->bookedseat[1];
            cout << (temp ? "商务舱余票：" + to_string(temp) : "商务舱无票") << endl;
            temp = p->maxseat[2] - p->bookedseat[2];
            cout << (temp ? "经济舱余票：" + to_string(temp) : "经济舱无票") << endl;
            
            //break;
        }
        p = p->next;
    }
    cout <<endl<< "最近一天航班日期：" << lastDate << endl;
    cout<<endl;
    if (!found)
    {
        cout << "未找到符合条件的航班信息!" << endl;
    }
}
void input_tbs(char &ch) // 功能输入，A要，B不要
{
    char s[100];
    cin >> s;
    if (strlen(s) == 1)
    {
        if (s[0] == 'A' || s[0] == 'B')
            ch = s[0];
        if (s[0] == 'a' || s[0] == 'b')
            ch = s[0];
    }
    else
    {
        cout << "输入的功能无效，请重新输入" << endl;
        input_tbs(ch);
    }
}
void input_flight_num(FL_Node FL, char flight_num[]) // 航班号输入
{
    FL_Node p = FL;
    cin >> flight_num;
    int temp = 1;
    while (p)
    {
        if (p->flightno == flight_num)
        {
            temp = 0;
            break;
        }
        p = p->next;
    }
    if (temp)
    {
        cout << "输入的航班号错误，请重新输入" << endl;
        input_flight_num(FL, flight_num);
    }
}
int ticket_booking_service(FL_Node &FL, const string name, const string flighnum,const string date_num,int ticket_num, int seat_class) // 订票服务
{
    int flag = 1;
    char ch;
    FL_Node p = FL; // p指向预定的航班节点
    while (p)
    {
        if (p->flightno == flighnum&&p->date==date_num)
            break;
        p = p->next;
    }
    if(p==NULL)
    {
        cout<<"您输入的航班飞行日期或航班号有误，请重新确认"<<endl;
        return 0;
    }
    int code = new_PA(p, name, seat_class, ticket_num);
    if (code == ERROR)
    {
        cout << "很抱歉无法满足您的需求，此次订票失败" << endl;
        flag = 0;
    }
    else if (code == -1)
    {
        cout << "是否需要排队候补（A需要，B不需要）" << endl;
        cout << "请输入指令";
        input_tbs(ch);
        switch (ch)
        {
        case 'a':
        case 'A':
            code = new_PAW(p, name, seat_class, ticket_num);
            if (code == ERROR)
            {
                cout << "很抱歉无法满足您的需求，候补失败" << endl;
                flag = 0;
            }
            else if (code == OK)
            {
                cout << "已为您加入候补名单" << endl;
                flag = 0;
            }
            break;
        case 'B':
        case 'b':
            cout << "很抱歉无法满足您的需求，此次订票失败" << endl;
            flag = 0;
            break;
        default:
            cout << "输入出错" << endl;
            flag = 0;
            break;
        }
    }
    return flag;
}
int ticket_refund_service(FL_Node &FL,char name[],char flight_num[],char flight_date[])//rnm，退票
{
    FL_Node p=FL;
    int flag=1;
    while(p)
    {
        if(p->date==flight_date&&p->flightno==flight_num)
        {
            flag=0;
            break;
        }
        p=p->next;
    }
    if(flag)
    {
        cout<<"航班号或飞行日期输入错误，请重新确认"<<endl;
        return ERROR;
    }
    if(del_PA(p,name))
        return OK;
    if(del_PAW(p,name))
        return OK;
    cout << "未找到该乘客！" << endl;
    return ERROR;
    return ERROR;
}