package src

import . "git.danitheskunk.com/squishy/blooblib"

type GobanRenderer struct {
	tilemap    *Tilemap
	boardState *BoardState
}

const (
	tileBoardTopLeft      = 0
	tileBoardTopRight     = 2
	tileBoardBottomLeft   = 8
	tileBoardBottomRight  = 10
	tileBoardTop          = 1
	tileBoardBottom       = 9
	tileBoardLeft         = 4
	tileBoardRight        = 6
	tileBoard             = 5
	tileBoardStar         = 3
	tileBg                = 12
	tileBottomOfBoard1    = 7
	tileBottomOfBoard2    = 11
	tileRightOfBoard      = 13
	tileBottomLeftOfBoard = 14
	tileTopRightOfBoard   = 15
	tileStoneBlack        = 0
	tileStoneWhite        = 1
	tileStoneBlackHalf    = 2
	tileStoneWhiteHalf    = 3
)

var tilesGoban []*Image

func NewGobanRenderer(boardState *BoardState) *GobanRenderer {
	if tilesGoban == nil {
		tilesGoban = LoadImage("assets/goban.png").MakeTileset(Vec2i{X: 16, Y: 16})
	}

	tilemap := NewTilemap(Vec2i{X: 40, Y: 23}, tilesGoban)
	tilemap.Clear(tileBg)

	for y := 0; y < 19; y += 1 {
		for x := 0; x < 19; x += 1 {
			tilemap.Set(Vec2i{X: 10 + x, Y: 1 + y}, tileBoard)
		}
		tilemap.Set(Vec2i{X: 10, Y: 1 + y}, tileBoardLeft)
		tilemap.Set(Vec2i{X: 28, Y: 1 + y}, tileBoardRight)
	}

	for x := 0; x < 19; x += 1 {
		tilemap.Set(Vec2i{X: 10 + x, Y: 1}, tileBoardTop)
		tilemap.Set(Vec2i{X: 10 + x, Y: 19}, tileBoardBottom)

		tilemap.Set(Vec2i{X: 10 + x, Y: 20}, tileBottomOfBoard1)
		tilemap.Set(Vec2i{X: 10 + x, Y: 21}, tileBottomOfBoard2)
	}

	for y := 0; y < 21; y += 1 {
		tilemap.Set(Vec2i{X: 29, Y: 1 + y}, tileRightOfBoard)
	}
	tilemap.Set(Vec2i{X: 10, Y: 21}, tileBottomLeftOfBoard)
	tilemap.Set(Vec2i{X: 29, Y: 1}, tileTopRightOfBoard)

	tilemap.Set(Vec2i{X: 10, Y: 1}, tileBoardTopLeft)
	tilemap.Set(Vec2i{X: 28, Y: 1}, tileBoardTopRight)
	tilemap.Set(Vec2i{X: 10, Y: 19}, tileBoardBottomLeft)
	tilemap.Set(Vec2i{X: 28, Y: 19}, tileBoardBottomRight)

	tilemap.Set(Vec2i{X: 13, Y: 4}, tileBoardStar)
	tilemap.Set(Vec2i{X: 25, Y: 4}, tileBoardStar)
	tilemap.Set(Vec2i{X: 13, Y: 16}, tileBoardStar)
	tilemap.Set(Vec2i{X: 25, Y: 16}, tileBoardStar)
	tilemap.Set(Vec2i{X: 13, Y: 10}, tileBoardStar)
	tilemap.Set(Vec2i{X: 13, Y: 16}, tileBoardStar)
	tilemap.Set(Vec2i{X: 25, Y: 10}, tileBoardStar)
	tilemap.Set(Vec2i{X: 25, Y: 16}, tileBoardStar)
	tilemap.Set(Vec2i{X: 19, Y: 4}, tileBoardStar)
	tilemap.Set(Vec2i{X: 19, Y: 10}, tileBoardStar)
	tilemap.Set(Vec2i{X: 19, Y: 16}, tileBoardStar)

	return &GobanRenderer{tilemap: tilemap, boardState: boardState}
}

func (gr *GobanRenderer) Render(target *Image) {
	target.DrawTilemap(gr.tilemap, Vec2i{})
	gr.boardState.Draw(target)
}