extends Node3D

var start_position
var start_rotation
var random_spread_start
var cycle_count_start
var cycle_count

@export_group("Gun Feel")
@export var gun_name : String
@export var gun_icon : Texture2D
@export_enum("Auto", "Single", "Burst") var fire_mode: int
@export var fov_zoom_amt = .98
@export var ads : bool = false
@export var recoil_amount : Vector3 = Vector3(.2,0,0)
@export var spread : Vector3 = Vector3(1,1,1)
@export var kick_amount : float = 5
@export var max_ammo = 15
@export var start_mags = 3
@export var pellets_per_shot = 12
@export var bullet_damage = 1
@export var bullet_force_mod = 5
@export var blast_power = 50.0
@export var bullet_speed : float = 150
@export var bullet_drop = .3
@export var random_spread_amt = 1.0
@export var fire_pitch_scale_amt = .2
@export_group("Gun Assets")
@export_subgroup("Main Assets")
@export var bullet : Resource
@export_subgroup("Raycast Nodes")
@export var anim_player : Node
@export var barrel_raycast : Node
@export_subgroup("Audio Clips")
@export var audio_fire : Node
@export var audio_empty : Node
@export var audio_reload : Node

@onready var smoke: GPUParticles3D = $BlunderbusHandle/Blunderbus/Smoke
@onready var player = get_tree().current_scene.player
@onready var level_control = get_tree().current_scene
@onready var ammo_current
@onready var smoke_timer: Timer = $SmokeTimer
@onready var fire_smoke: GPUParticles3D = $BlunderbusHandle/Blunderbus/fire_smoke

var rng = RandomNumberGenerator.new()
var gun_index
#var ammo_current
var ammo_reserve

# Called when the node enters the scene tree for the first time.
func _ready():
	#smoke.emitting = false
	start_position = self.position
	start_rotation = self.rotation
	random_spread_start = random_spread_amt
	
	#ammo_current = level_control.ammo_current[gun_index]
	#ammo_reserve = level_control.ammo_reserve[gun_index]
	
	
	if fire_mode == 0:
		cycle_count = 1
		cycle_count_start = 1
	elif fire_mode == 1:
		cycle_count = 1
		cycle_count_start = 1
	elif fire_mode == 2:
		cycle_count = 3
		cycle_count_start = 3
	


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(_delta):
	pass


func reload_finished():
	if level_control.ammo_reserve[gun_index] >= max_ammo:
		level_control.ammo_current[gun_index] += max_ammo
		level_control.ammo_reserve[gun_index]  -= max_ammo

	else:
		level_control.ammo_current[gun_index] += level_control.ammo_reserve[gun_index]
		level_control.ammo_reserve[gun_index] -= level_control.ammo_reserve[gun_index]


func shoot(delta):
	if level_control.ammo_current[gun_index] > 0:
		if !anim_player.is_playing():
			anim_player.play("shoot")
	elif !anim_player.is_playing() and cycle_count != 0:
		anim_player.play("empty")
		audio_empty.play()

func fire():
	level_control.ammo_current[gun_index] -= 1
	audio_fire.pitch_scale = 1 + rng.randf_range(-fire_pitch_scale_amt,fire_pitch_scale_amt) 
	audio_fire.play()
	pellet_spawn()
	vibration()
	fire_smoke.restart()
	fire_smoke.emitting = true
	smoke_timer.start()
	player.recoil.add_recoil(Vector3(0,recoil_amount.y,recoil_amount.z),10,10)
	player.recoil.add_gun_recoil(recoil_amount.x)
	player.velocity += player.bullet_ray.global_basis * Vector3(0,0, kick_amount)
	SaveLoad.shots_fired = SaveLoad.null_data_check(SaveLoad.shots_fired, 1)

func reload():
	if level_control.ammo_current[gun_index]  < max_ammo and player.gun.anim_player.get_current_animation() != "reload" and level_control.ammo_reserve[gun_index]  > 0:
		#player.reloading = true
		anim_player.play("reload")
		audio_reload.play()
		if anim_player.is_playing() and anim_player.current_animation == "reload":
			if level_control.ammo_current[gun_index] == 0:
				level_control.ammo_current[gun_index] = 0
			else:
				level_control.ammo_current[gun_index] = 1

func pellet_spawn():
	var pellets_remaining = pellets_per_shot
	while pellets_remaining > 0:
		var lv_x = rng.randf_range(-spread.x,spread.x)
		var lv_y = rng.randf_range(-spread.y,spread.y)
		# instance bullet
		var instance_bullet = bullet.instantiate()
		instance_bullet.position = player.bullet_ray.global_position
		instance_bullet.transform.basis = player.bullet_ray.global_transform.basis
		instance_bullet.linear_velocity  += instance_bullet.transform.basis * Vector3(lv_x, lv_y, -bullet_speed) + player.velocity
		instance_bullet.bullet_damage = bullet_damage
		instance_bullet.bullet_force_mod = bullet_force_mod
		instance_bullet.player_position = player.global_position
		get_tree().get_root().add_child(instance_bullet)
		pellets_remaining -= 1
	
func swapped_out():
	queue_free()


func _on_smoke_timer_timeout() -> void:
	smoke.restart()
	smoke.emitting = true
	smoke_timer.stop()
	
func vibration():
	Input.start_joy_vibration(0,.5,.9,.2)