extends Node

@warning_ignore("unused_signal")
signal sig_debug_camera_zoom(value: bool)
@warning_ignore("unused_signal")
signal sig_debug_god_mode(value: bool)
@warning_ignore("unused_signal")
signal sig_debug_enemy_god_mode(value: bool)
@warning_ignore("unused_signal")
signal sig_debug_stats_set(key: String, value: String)
@warning_ignore("unused_signal")
signal sig_stop_spawning(value: bool)

const GROUP_ENEMY = "enemy"
const GROUP_DAMAGEABLE = "damagable"
const GROUP_PLAYER = "player"
const GROUP_XP_ORB = "xp_orb"

enum ModRarity { LEGENDARY, EPIC, RARE, NORMAL }

var placeholder_tex: Texture2D

var MOD_CHOICES = [
	{
		"internal_name": "flat_health_small",
		"name": "+10 Health",
		"rarity": ModRarity.NORMAL,
		"tex": placeholder_tex,
		"description": "Adds 10 flat health.",
		"weight": 100,
		"mod_name": "max_health",
		"mod_value": 10.0,
		"mod_type": PlayerStatsModifier.ModifierType.ADDITIVE
	},
	{
		"internal_name": "flat_health_med",
		"name": "+25 Health",
		"rarity": ModRarity.RARE,
		"tex": placeholder_tex,
		"description": "Adds 25 flat health.",
		"weight": 50,
		"mod_name": "max_health",
		"mod_value": 25.0,
		"mod_type": PlayerStatsModifier.ModifierType.ADDITIVE
	},
	{
		"internal_name": "flat_health_large",
		"name": "+50 Health",
		"rarity": ModRarity.EPIC,
		"tex": placeholder_tex,
		"description": "Adds 50 flat health.",
		"weight": 10,
		"mod_name": "max_health",
		"mod_value": 50.0,
		"mod_type": PlayerStatsModifier.ModifierType.ADDITIVE
	},
	{
		"internal_name": "flat_crit_small",
		"name": "2.5% More Critical Chance",
		"rarity": ModRarity.RARE,
		"tex": placeholder_tex,
		"description": "Gives 2.5% more base critical hit chance",
		"weight": 50,
		"mod_name": "crit_chance",
		"mod_value": 0.025,
		"mod_type": PlayerStatsModifier.ModifierType.ADDITIVE
	},
	{
		"internal_name": "flat_crit_large",
		"name": "5% More Critical Chance",
		"rarity": ModRarity.EPIC,
		"tex": placeholder_tex,
		"description": "Gives 5% more base critical hit chance",
		"weight": 10,
		"mod_name": "crit_chance",
		"mod_value": 0.05,
		"mod_type": PlayerStatsModifier.ModifierType.ADDITIVE
	},
]

func _ready() -> void:
	placeholder_tex = PlaceholderTexture2D.new()
	placeholder_tex.size = Vector2(64.0, 64.0)

func _draw_random_choice(fortune: float = 1.0) -> Dictionary:
	var total_weight: int = 0
	for choice in MOD_CHOICES:
		total_weight += calculate_weight(choice["weight"], fortune)
	var roll = randi() % total_weight
	var cumulative = 0
	for u in MOD_CHOICES:
		cumulative += u["weight"]
		if roll < cumulative:
			return u
	return MOD_CHOICES.back()

func draw_random_mod(fortune: float = 1.0) -> PlayerStatsModifier:
	var choice = _draw_random_choice(fortune)
	var mod: PlayerStatsModifier = PlayerStatsModifier.new()
	mod.stat_name = choice["mod_name"]
	mod.value = choice["mod_value"]
	mod.type = choice["mod_type"]
	mod.description = choice["description"]
	mod.internal_name = choice["internal_name"]
	mod.tex = choice["tex"]
	mod.title = choice["name"] 

	return mod
		
func calculate_weight(weight: float, fortune: float):
	return weight**(1 / 1 + fortune)