class_name Hack extends Area3D

enum Type{
	DESTROY,
	PURGE,
	INFECT,
	REDIRECT,
	TRIGGER,
	CONTAIN
}

const range_radius : Dictionary = {
	Hack.Type.DESTROY : 2,
	Hack.Type.INFECT : .5,
	Hack.Type.CONTAIN : .5,
	Hack.Type.REDIRECT : .5,
	Hack.Type.TRIGGER : 1,
	Hack.Type.PURGE : 1.5,
}
const hack_icons : Dictionary = {
	Hack.Type.DESTROY : 		preload("res://external/destroy-icon.png"),
	Hack.Type.INFECT : 		preload("res://external/infect-icon.png"),
	Hack.Type.CONTAIN : 	preload("res://external/contain-icon.png"),
	Hack.Type.REDIRECT : preload("res://external/redirect-icon.png"),
	Hack.Type.TRIGGER : 		preload("res://external/trigger-icon.png"),
	Hack.Type.PURGE : 		preload("res://external/purge-icon.png"),
}

const destroy_explosion_template = preload("res://experimental/BinbunVFX/impact_explosions/effects/explosion/vfx_explosion_01.tscn")
const purge_explosion_template = preload("res://experimental/BinbunVFX/impact_explosions/effects/explosion/vfx_explosion_03.tscn")
const contain_template = preload("res://templates/pitfall.tscn")
const trigger_explosion_template = preload("res://experimental/BinbunVFX/impact_explosions/effects/explosion/vfx_explosion_04.tscn")
const infect_emitter_template = preload("res://templates/gas_emitter.tscn")
const force_activate_sound = preload("res://audio/sounds/TomWinandySFX_UI_ScifiTech_Start_06.wav")

@onready var range_area : Area3D = %RangeArea
@onready var range_shape : SphereShape3D = %RangeShape.shape
@onready var model : MeshInstance3D = %Model
@onready var icon : Sprite3D  = %Icon
@onready var force_strip : Sprite3D = %ForceStrip
@onready var material : ShaderMaterial = model.get_active_material(0)
@onready var reveal_timer : Timer = %RevealTimer
@onready var activation_timer : Timer = %ActivationTimer

var type : Type
var square : Vector3i
var hack_owner : int
var direction : Vector3

var expended : bool = false
var decompiling : bool
var decompile_id : int

var delayed_trigger_tween : Tween = null

var damage : int = 10

var just_revealed : bool = false


signal removed(type : Hack.Type)
signal decompiled(type : Hack.Type)
signal activated(type : Hack.Type)
signal revealed(is_visible : bool)

func _enter_tree() -> void:
	Game.level.add_map_marker(self)

func _exit_tree() -> void:
	Game.level.remove_map_marker(self)

func setup(new_type : Type, dir : Vector3, h_owner : int) -> void:
	type = new_type
	hack_owner = h_owner
	if type == Type.REDIRECT:
		var r : float = atan2(dir.z, dir.x)
		var cardinal : float = roundi(r * 2 / PI) * PI / 2
		direction = Vector3(cos(cardinal), 0, sin(cardinal))

func remove() -> void:
	removed.emit(type)
	queue_free()

func decompile() -> void:
	decompiled.emit(type)
	queue_free()

func reveal() -> void:
	if model.visible:
		return
	model.visible = true
	reveal_timer.start(5)
	just_revealed = true
	revealed.emit(true)

func is_just_revealed() -> bool:
	return just_revealed
	
func is_revealed() -> bool:
	return model.visible

func _on_reveal_timeout() -> void:
	if Game.level.is_square_detected(square) or decompiling:
		reveal_timer.start(5)
	else:
		model.visible = false
		revealed.emit(false)

func _ready() -> void:
	var owns_hack = hack_owner == Multiplayer.id
	material.set_shader_parameter("glow_color", Color.YELLOW if owns_hack else Color.RED)
	icon.texture = hack_icons[type]
	model.visible = owns_hack
	icon.visible = owns_hack
	range_shape.radius = range_radius[type]
	match(type):
		Type.DESTROY:
			damage = 15
		Type.PURGE:
			damage = 10
		Type.TRIGGER:
			damage = 5
		Type.INFECT:
			activation_timer.start()
		Type.REDIRECT:
			var r : float = atan2(direction.z, -direction.x) + PI/2
			force_strip.rotate_y(r)
			force_strip.visible = owns_hack

func _process(_delta: float) -> void:
	just_revealed = false

func blast(body : PawnController) -> void:
	body.hurt(damage)
	body.knockup((global_position.direction_to(body.global_position) + Vector3(0,2,0)) * 3)

func activate() -> void:
	if expended:
		return
	var explode : bool = false
	match(type):
		Type.CONTAIN:
			generate_contain(square)
			for body in get_overlapping_bodies():
				body.start_pitfall(square, 6.0)
			#Generate the circle here
		Type.REDIRECT:
			Game.oneshot(force_activate_sound)
			for body in get_overlapping_bodies():
				body.fling(direction, 5.0)
		Type.PURGE:
			var expl = purge_explosion_template.instantiate()
			Game.level.add_vfx(expl, square)
			explode = true
		Type.TRIGGER:
			var expl = trigger_explosion_template.instantiate()
			Game.level.add_vfx(expl, square)
			explode = true
		Type.DESTROY:
			var expl = destroy_explosion_template.instantiate()
			Game.level.add_vfx(expl, square)
			explode = true
		Type.INFECT:
			var emitter = infect_emitter_template.instantiate()
			emitter.hack_owner = hack_owner
			emitter.square = square
			emitter.damage = 4
			Game.level.add_vfx(emitter, square)
	
	if explode:
		trigger_adjacent_bombs()
		blast_players()
	
	expended = true
	Game.level.uninstall_hack_square(square)
	activated.emit(type)
	queue_free()

func trigger_adjacent_bombs() -> void:
	for hack : Hack in range_area.get_overlapping_areas():
		if hack.type == Type.DESTROY and hack != self:
			hack.delay_trigger()

func generate_contain(sq : Vector3i) -> void:
	var contain = contain_template.instantiate()
	contain.duration = 6.0
	Game.level.add_vfx(contain, sq)
	
func blast_players() -> void:
	for body in range_area.get_overlapping_bodies():
		blast(body)	

func delay_trigger() -> void:
	if delayed_trigger_tween != null:
		return
	delayed_trigger_tween = create_tween()
	delayed_trigger_tween.tween_interval(.25)
	delayed_trigger_tween.tween_callback(activate)
		

func _on_body_entered(body: Node3D) -> void:
	if type == Type.INFECT or type == Type.DESTROY:
		return
		
	if body.id == hack_owner:
		return
		
	if !decompiling or body.id != decompile_id:
		if !body.is_detecting():
			activate()


func _on_activation_timer_timeout() -> void:
	activate()