package main

import (
	"math/rand"
	"strings"

	"github.com/hajimehoshi/ebiten/v2"
)

const (
	MAX_RANDOM_INCREMENT = 50
)

type Leaderboard struct {
	Board *ebiten.Image                //the team board target image
	teams map[string]*AnimatedScoreBar //collection of teams + score bars
}

func NewLeaderboard(w, h int, teamnames []string) *Leaderboard {
	t := &Leaderboard{}
	t.Board = ebiten.NewImage(w, h)
	t.teams = make(map[string]*AnimatedScoreBar)

	for i, name := range teamnames {
		cleanname := strings.ToUpper(name)
		t.teams[cleanname] = NewAnimatedScoreBar(CharacterType(i%CHARACTER_NUMTYPES), strings.ToUpper(name))
		t.teams[cleanname].SetOrder(i)
	}

	return t
}

func (t *Leaderboard) SetScaleFactor(sf float64) {
	for _, team := range t.teams {
		team.SetScaleFactor(sf)
	}
}

func (l *Leaderboard) UpdateScoreForTeam(name string, score int) {
	t := l.teams[strings.ToUpper(name)]
	if t != nil {
		t.SetTarget(float64(score))
	}
}

func (l *Leaderboard) GetLeaders() []*AnimatedScoreBar {
	leaders := []*AnimatedScoreBar{}

	highScore := 0

	for _, team := range l.teams {
		teamscore := int(team.GetTarget())
		if teamscore > highScore {
			leaders = leaders[:0]
			leaders = append(leaders, team)
			highScore = teamscore
		} else if teamscore == highScore {
			leaders = append(leaders, team)
		}
	}

	return leaders
}

func (t *Leaderboard) Animate() {

	t.Board.Clear()
	for _, v := range t.teams {
		op := &ebiten.DrawImageOptions{}
		op.GeoM.Translate(0, float64(v.GetOrder())*(ASB_HEIGHT+ASB_BUFFER))
		t.Board.DrawImage(v.ScoreImage, op)
		v.Animate()
	}

}

func (l *Leaderboard) SetAllTargets(t float64) {
	for _, board := range l.teams {
		board.SetTarget(t)
	}
}

func (l *Leaderboard) RandomizeTeamTargets() {
	for _, board := range l.teams {
		board.SetTarget(board.GetTarget() + float64(rand.Int()%MAX_RANDOM_INCREMENT))
	}
}