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#include "airline_ticket.h"
#include "test_runner.h"

#include <iostream>
#include <map>
#include <sstream>

using namespace std;

#define UPDATE_FIELD(ticket, field, values) \
{                                           \
auto it = values.find(#field);              \
if(it != values.end())                      \
{                                           \
    istringstream is(it->second);           \
    is >> ticket.field;                     \
    }                                       \
}

#define UPDATE_FIELD(ticket, field, values) \
{                                           \
auto it = values.find(#field);              \
if(it != values.end())                      \
{                                           \
   ticket.field = it->second;               \
    }                                       \
}

istream& operator >> (istream& is, const Date& date)
{
    is >> date.year;
    is.ignore(1);

    is >> date.month;
    is.ignore(1);

    is >> date.day;

    return is;
}

istream& operator >> (istream& is, const Time& time) 
{
    is >> time.hours;
    is.ignore(1);

    is >> time.minutes;


    return is;
}

ostream& operator << (ostream& out, const Time& time)
{
    out << time.year << "-" << time.month << "-" << time.day;
    return out;
}

ostream& operator << (ostream& out, const  Date& date)
{
    out << date.hours << ":" << date.minutes;
    return out;
}

bool operator < (const Time& lhs, const Time& rhs)
{
    return tie(lhs.year, lhs.month, lhs.day) < tie(rhs.year, rhs.month, rhs.day);
}

bool operator < (const Date& lhs, const Date& rhs)
{
    return tie(lhs.hours, lhs.minutes) < tie(rhs.hours, rhs.minutes);
}

bool operator == (const Time& lhs, const Time& rhs)
{
    return tie(lhs.year, lhs.month, lhs.day) == tie(rhs.year, rhs.month, rhs.day);
}

bool operator == (const Date& lhs, const Date& rhs)
{
    return tie(lhs.hours, lhs.minutes) == tie(rhs.hours, rhs.minutes);
}

void TestUpdate()
{
    AirlineTicket t;
    t.price = 0;

    const map<string, string> updates1 = {
      {"departure_date", "2018-2-28"},
      {"departure_time", "17:40"},
    };
    UPDATE_FIELD(t, departure_date, updates1);
    UPDATE_FIELD(t, departure_time, updates1);
    UPDATE_FIELD(t, price, updates1);

    ASSERT_EQUAL(t.departure_date, (Date{ 2018, 2, 28 }));
    ASSERT_EQUAL(t.departure_time, (Time{ 17, 40 }));
    ASSERT_EQUAL(t.price, 0);

    const map<string, string> updates2 = {
      {"price", "12550"},
      {"arrival_time", "20:33"},
    };
    UPDATE_FIELD(t, departure_date, updates2);
    UPDATE_FIELD(t, departure_time, updates2);
    UPDATE_FIELD(t, arrival_time, updates2);
    UPDATE_FIELD(t, price, updates2);

    
    ASSERT_EQUAL(t.departure_date, (Date{ 2018, 2, 28 }));
    ASSERT_EQUAL(t.departure_time, (Time{ 17, 40 }));
    ASSERT_EQUAL(t.price, 12550);
    ASSERT_EQUAL(t.arrival_time, (Time{ 20, 33 }));
}


void TestUpdates()
{
    TestRunner tr;
    RUN_TEST(tr, TestUpdate);
}