package main

import (
	"github.com/veandco/go-sdl2/sdl"
	"image/color"
	"strconv"
	"sync"
)

var baseMutex sync.RWMutex

type Base struct {
	ownerID      uint32
	openingWidth int32
	gameObject   *GameObject
}

func (base *Base) tick(players map[uint32]*Player) {
	playersMutex.RLock()
	for playerID, player := range players {
		if player.gameObject.baseRect.HasIntersection(base.gameObject.baseRect) {
			if player.rechargeCooldown == 0 && player.energy < serverConfig.MaxEnergy {
				if serverConfig.MaxEnergy-player.energy < 4 {
					player.energy++
				} else {
					player.energy += 4
				}
				if playerID == base.ownerID {
					player.rechargeCooldown = serverConfig.RechargeCooldownOwn
				} else {
					player.rechargeCooldown = serverConfig.RechargeCooldownOpponent
				}
			}
			if playerID == base.ownerID && player.repairCooldown == 0 && player.shields < serverConfig.MaxShields {
				player.shields++
				player.repairCooldown = serverConfig.RepairCooldown
			}
		}
	}
	playersMutex.RUnlock()
}

func (base *Base) render(camera *sdl.Rect, surface *sdl.Surface, bases map[uint32]*Base) {
	base.gameObject.render(camera, surface)
	if !base.gameObject.inView && !config.Server {
		delete(bases, base.ownerID)
	}
}

func (base *Base) build(gameMap *GameMap) {
	if gameMap.width-uint32(base.gameObject.baseRect.X)-uint32(base.gameObject.baseRect.W) <= 0 {
		panic("Bad base x location")
	}
	if gameMap.height-uint32(base.gameObject.baseRect.Y)-uint32(base.gameObject.baseRect.H) <= 0 {
		panic("Bad base y location")
	}
	if base.gameObject.baseRect.X < 0 || base.gameObject.baseRect.Y < 0 {
		panic("Bad base negative location " + strconv.Itoa(int(base.gameObject.baseRect.X)) + " - " + strconv.Itoa(int(base.gameObject.baseRect.Y)))
	}
	base.gameObject.adjustBaseRect()
	for x := base.gameObject.baseRect.X; x < base.gameObject.baseRect.X+base.gameObject.baseRect.W; x++ {
		for y := base.gameObject.baseRect.Y; y < base.gameObject.baseRect.Y+base.gameObject.baseRect.H; y++ {
			gameMap.tiles[x][y] = 0
		}
	}
	for _, rectT := range base.gameObject.getCurrentRects() {
		rect := sdl.Rect{
			X: rectT.rect.X + base.gameObject.baseRect.X,
			Y: rectT.rect.Y + base.gameObject.baseRect.Y,
			W: rectT.rect.W,
			H: rectT.rect.H,
		}
		for x := rect.X; x < rect.X+rect.W; x++ {
			for y := rect.Y; y < rect.Y+rect.H; y++ {
				gameMap.tiles[x][y] = 4
			}
		}
	}
}

func createBase(gameMap *GameMap, baseColor color.Color, posX, posY, ownerID, openingWidth uint32) *Base {
	gameObject := &GameObject{}
	gameObject.baseRect = &sdl.Rect{
		X: int32(posX),
		Y: int32(posY),
		W: 35,
		H: 35,
	}
	if openingWidth%2 == 0 {
		openingWidth++
	}

	borderWidth := gameObject.baseRect.W - int32(openingWidth)
	borderWidthA := borderWidth / 2
	borderWidthB := borderWidth - borderWidthA + 1
	if borderWidth < 0 {
		panic("Bad border width")
	}
	gameObject.addColor(baseColor)
	gameObject.addColoredRect(0, 0, 1, gameObject.baseRect.H-1, 0)
	gameObject.addColoredRect(gameObject.baseRect.W, 0, 1, gameObject.baseRect.H-1, 0)
	gameObject.addColoredRect(0, 0, borderWidthA, 1, 0)
	gameObject.addColoredRect(borderWidthA+int32(openingWidth), 0, borderWidthB, 1, 0)
	gameObject.addColoredRect(0, gameObject.baseRect.H-1, borderWidthA, 1, 0)
	gameObject.addColoredRect(borderWidthA+int32(openingWidth), gameObject.baseRect.H-1, borderWidthB, 1, 0)
	base := &Base{
		gameObject:   gameObject,
		ownerID:      ownerID,
		openingWidth: int32(openingWidth),
	}
	base.build(gameMap)
	return base
}

func (base *Base) delete(bases map[uint32]*Base) {
	for x := base.gameObject.baseRect.X; x < base.gameObject.baseRect.X+base.gameObject.baseRect.W+1; x++ {
		for y := base.gameObject.baseRect.Y; y < base.gameObject.baseRect.Y+base.gameObject.baseRect.H+1; y++ {
			gameMap.tiles[x][y] = 0
		}
	}
	baseMutex.Lock()
	delete(bases, base.ownerID)
	baseMutex.Unlock()
}

func createBases(players map[uint32]*Player, gameMap *GameMap) map[uint32]*Base {
	bases := map[uint32]*Base{}
	playersMutex.RLock()
	for ownerID, player := range players {
		baseMutex.Lock()
		bases[ownerID] = createBase(gameMap,
			player.playerColors.body,
			uint32(player.gameObject.baseRect.X-14),
			uint32(player.gameObject.baseRect.Y-14),
			ownerID,
			uint32(float64(player.gameObject.baseRect.W)*1.5),
		)
		baseMutex.Unlock()
	}
	playersMutex.RUnlock()
	return bases
}