extends Node2D
signal playerDeathSignal
signal playerDamageSignal(health, maxhealth)
signal destroySignal(body)
signal levelChangeSignal(level)

var loadIntent = false
var timer = Timer.new()
var timeAvailable:int = 5

var levels = ["res://scenes/game.tscn","res://scenes/level2.tscn","res://scenes/level3.tscn"]
var timers = [15,10,9]
var currentLevel = 0

#character stats
var enemy:CharacterStats
var player:CharacterStats
var playerCurrentHealth:int

var enemiesDict = {}

var saveObject = {}
# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	enemy = load("res://scripts/rscs/slimeStats.tres")
	player = load("res://scripts/rscs/playerStats.tres")
	playerCurrentHealth = player.starting_health
	
	add_child(timer)
	timer.wait_time = 1
	timer.one_shot = false
	timer.connect("timeout", secondCounter)
	timer.start()
	
func reset():
	enemiesDict.clear()
	timeAvailable = timers[currentLevel]
	playerCurrentHealth = player.max_health
	
	if loadIntent:
		var saved_game:SavedGame = load("res://scripts/rscs/gameSaveStats.tres")
		saveObject = saved_game.gameData
		playerCurrentHealth = saveObject ["PlayerHealth"]
		timeAvailable = saveObject["TimeAvailable"]
		loadIntent = false
		return saveObject
	return{}
func secondCounter():
	timeAvailable -=1
	#check for time running out
	if timeAvailable <=0:
		print("You lose")
		levelChangeSignal.emit(levels[currentLevel])
		
# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	if Input.is_action_just_pressed("save"):
		saveGame()
	if Input.is_action_just_pressed("load"):
		loadGame()


func _on_trigger(effect: Variant, body: Variant) -> void:
	print("GC sees trigger "+effect)
	match effect:
		"player_hurt":
			if body is Player:
				print("hurt the player")
				#playerDamage.emit()
	#if not body is Player:
	#	body.queue_free()
	
func bulletDamage(body, bullet):
	print("GC know about bullet hit")
	if body is Slime:
		#give damage to this individual enemy
		enemiesDict[body]["health"] -= player.rangeDamage
		if enemiesDict[body]["health"] <=0:
			print ("enemy is dead")
			removeEnemyFromLevel(body)
			destroySignal.emit(body)
		else:
			print("enemy is damaged")
			body.handle_damage()

func removeEnemyFromLevel(body)->void:
	enemiesDict.erase(body)
	
func coinCollected(body, coin):
	print("GC knows coin collected")
	destroySignal.emit(coin)

func totalCoinCount(count):
	print("GC knows total coins "+str(count))
	if count == 0:
		currentLevel +=1
		if currentLevel >= levels.size():
			currentLevel = 0
		levelChangeSignal.emit(levels[currentLevel])
		
func playerAttacked(body, slime):
	print("GC knows slime attack")
	print("Damge : "+str(enemiesDict[slime]["damage"]) )
	print("Player health : "+str(playerCurrentHealth))
	playerCurrentHealth -= enemiesDict[slime]["damage"]
	if playerCurrentHealth <=0:
		print("YOU DEAD")
		playerDeathSignal.emit()
	else: 
		print("taking damage")
		playerDamageSignal.emit(playerCurrentHealth, player.max_health)

func deathComplete()->void:
	levelChangeSignal.emit(levels[currentLevel])

func addEnemyToLevel(slime)->void:
	var randHealth:int= randi() % 20
	var randDamage:int = randi() % 10
	var enemyState= {"health": enemy.health + randHealth,  
	"damage": enemy.meleeDamage + randDamage
	}
	enemiesDict[slime]= enemyState
	
func saveGame()->void:
	saveObject["enemies"]={}
	var index = 0
	# create an object with all critical game data
	print("game Level"+str(currentLevel))
	print("time Remaining"+str(timeAvailable))
	print("player Health"+str(playerCurrentHealth))
	#bad guys stuff
	for key in enemiesDict:
		var tempObj = {}
		tempObj["health"]= enemiesDict[key]["health"]
		tempObj ["damage"]=enemiesDict[key]["damage"]
		tempObj["global_position"]= key.global_position
		saveObject["enemies"]["slime"+str(index)] = tempObj
		index +=1
	saveObject["GameLevel"]= currentLevel
	saveObject["TimeAvailable"]= timeAvailable
	saveObject["PlayerHealth"]= playerCurrentHealth
	var saved_game:SavedGame = SavedGame.new()
	saved_game.gameData = saveObject
	ResourceSaver.save(saved_game, "res://scripts/rscs/gameSaveStats.tres")
	
func loadGame()->void:
	loadIntent = true
	levelChangeSignal.emit(levels[saveObject["GameLevel"]])