# player class
class_name Player
extends VBoxContainer


var area_exp := 0.0


func _ready() -> void:
    SignalBus.enemy_died.connect(_on_enemy_died)
    SignalBus.quest_completed.connect(_on_quest_completed)
    $PlayerExpBar.value = _get_level_progress_percent()
    $PlayerLabel/PlayerLevel.text = str(floor(PlayerState.player_level))


func _on_enemy_died(enemyDifficulty, enemyTier, _enemyFaction) -> void:
    var kill_exp = pow(pow(enemyTier + 1, 3), enemyDifficulty)
    area_exp += kill_exp
    print("T: ", enemyTier, " D: ", enemyDifficulty)
    print("K: ", kill_exp)
    print("A: ",area_exp)
    # TODO: maybe show earned exp on bar, separate from current
    # use xp to next level and current level, subtract, figure out percentage per point exp, add to display?


func _calculate_player_level() -> float:
    var current_exp = PlayerState.player_exp
    return log((current_exp + 5)/5.0) + 1


func _get_level_progress_percent() -> float:
    var current_level = _calculate_player_level()
    return fmod(current_level, 1) * 100.0
       

func _on_quest_completed() -> void:
    PlayerState.player_exp += area_exp
    PlayerState.player_level = _calculate_player_level()
    $PlayerExpBar.value = _get_level_progress_percent()
    $PlayerLabel/PlayerLevel.text = str(floor(PlayerState.player_level))
    print("FA: ", area_exp)
    print("L: ", PlayerState.player_level)
    print("XP: ", PlayerState.player_exp)
    print("CL: ", _calculate_player_level())
    print("LP: ", _get_level_progress_percent())
    Engine.time_scale = 0.0001