package main

import (
	"fmt"
	"sort"
)

type Team struct {
	Name    string
	Players []string
}

type League struct {
	name  string
	Teams map[string]Team
	Wins  map[string]int
}

func (l *League) MatchResult(firstTeam string, firstScore int, secondTeam string, secondScore int) {
	if _, ok := l.Teams[firstTeam]; ok {
		return
	}
	if _, ok := l.Teams[secondTeam]; ok {
		return
	}
	if firstScore == secondScore {
		return
	}
	if firstScore > secondScore {
		l.Wins[firstTeam]++
	} else if secondScore > firstScore {
		l.Wins[secondTeam]++
	}
}

func (l League) Ranking() []string {
	teamRanking := make([]string, 0, len(l.Wins))
	for winsK := range l.Wins {
		teamRanking = append(teamRanking, winsK)
	}
	sort.Slice(teamRanking, func(i, j int) bool {
		return l.Wins[teamRanking[i]] < l.Wins[teamRanking[j]]
	})
	return teamRanking
}

func main() {
	league := League{"newLeague", map[string]Team{}, map[string]int{"first": 1, "second": 2, "third": 6, "fourth": 3, "fifth": 4}}
	league.MatchResult("third", 5, "second", 4)
	fmt.Println(league)
	fmt.Println(league.Ranking())
}