extends Node2D

var coins_collected : int = 0
var total_coins : int = 0
var levels = ["res://scenes/game.tscn", "res://scenes/level_2.tscn", "res://scenes/level_3.tscn"]
var timers = [10, 15, 20]
var time_available : int = 0
var current_level = 0
var timer = Timer.new()

## Signals
signal level_changed(level)
signal destroyed(body)
signal player_damaged(health, max_health)
signal player_death

var enemy_stats : CharacterStats
var player_stats : CharacterStats
var enemies_dict : Dictionary = {}
var player_current_health : int = 0

func _ready() -> void:
	# load in characters
	enemy_stats = load("res://resources/slime_stats.tres")
	player_stats = load("res://resources/player_stats.tres")
	player_current_health = player_stats.starting_health
	add_child(timer)
	timer.wait_time = 1.0
	timer.one_shot = false
	timer.connect("timeout", second_counter)
	timer.start()

func second_counter() -> void:
	time_available -= 1
	if time_available <= 0:
		print_debug("You ran out of time! Emitting level_changed signal")
		#get_tree().call_deferred("change_scene_to_file", levels[current_level])
		#await get_tree().create_timer(1.0).timeout
		level_changed.emit(levels[current_level])

func reset() -> void:
	print_debug("Resetting the level")
	enemies_dict.clear()
	player_current_health = player_stats["starting_health"]
	time_available = timers[current_level]
	print_debug("You have %s seconds to find all the coins" % str(time_available))

func _on_trigger_fired(intent: Variant, body: PhysicsBody2D) -> void:
	print("Game controller knows %s trigger fired " % intent)
	match intent:
		"destroy":
			print("Destroy this thing!")
			if body is RigidBody2D:
				destroyed.emit(body)
		"powerup":
			print("Power this thing up!")

func on_coin_collected(_body, coin) -> void:
	print_debug("GC knows coin collected")
	coins_collected += 1
	print_debug("Coins collected: %s" % str(coins_collected))
	print_debug("There are %s coins remaining" % str(total_coins - coins_collected))
	destroyed.emit(coin)

func set_total_coins(value) -> void:
	print_debug("Setting coin total to %s" % str(value))
	if value == 0:
		# You won!
		current_level += 1
		if current_level >= levels.size():
			current_level = 0
		#await get_tree().create_timer(1.0).timeout
		level_changed.emit(levels[current_level])
	#total_coins = value
	print_debug("There are %s coins in the level" % str(value))

func on_player_slimed(_body, slime) -> void:
	print_debug("GC knows player slimed")
	print_debug("Damage: " + str(enemies_dict[slime]["damage"]))
	player_current_health -= enemies_dict[slime]["damage"]
	if player_current_health <= 0:
		print_debug("Player dead!")
		player_death.emit()
	else: 
		print_debug("Taking damage")
		player_damaged.emit(player_current_health, player_stats.starting_health)
	print_debug("Player Health: " + str(player_current_health) + " of " + str(player_stats.starting_health))

func add_enemy_to_level(enemy) -> void:
	print_debug("GC adding %s to level" % enemy.name)
	var rand_damage : int = randi() % 10
	var this_enemy_stats : Dictionary = {
		"health": enemy_stats.health,
		"damage": enemy_stats.melee_damage + rand_damage
	}
	enemies_dict[enemy] = this_enemy_stats

func bullet_damage(thing_damaged, _bullet) -> void:
	print_debug("Bullet has hit %s" % thing_damaged.name)
	if thing_damaged is Slimer:
		print_debug("Hitting a slime!")
		enemies_dict[thing_damaged]["health"] -= player_stats.ranged_damage
		if enemies_dict[thing_damaged]["health"] <= 0:
			print("Enemy killed")
			remove_enemy_from_level(thing_damaged)
			destroyed.emit(thing_damaged)
		else: 
			print_debug("Slime health is %s" % enemies_dict[thing_damaged]["health"])

func remove_enemy_from_level(enemy) -> void:
	enemies_dict.erase(enemy)