class_name QuizSettingsCard
extends BasePopup
## The quiz settings, in a small card that opens above the Quiz settings button by the
## music player: how songs are played and hidden, the winning score and the inspiration
## list. It does not dim the quiz, so it can be changed during a song.
##
## Every change is saved at once with [method Settings.save_settings].
##
## The card's bottom edge is where the card is placed, just above the player bar, and
## it grows upward to fit its rows.
##
## The application settings, such as the server, are in [SettingsPopup].

## The most seconds of a song's beginning that can be hidden.
const MAX_HIDE_SECONDS: float = 10.0
## Space between the rows and the card's edges.
const PADDING: Vector2 = Vector2(16, 12)

@onready var card_panel: Panel = %CardPanel
@onready var rows: VBoxContainer = %VBox
@onready var auto_repeat_button: CheckButton = %AutoRepeatCheckButton
@onready var stop_after_current_button: CheckButton = %StopAfterCurrentCheckButton
@onready var hide_next_track_button: CheckButton = %HideNextTrackCheckButton
@onready var hide_beginning_button: CheckButton = %HideBeginningCheckButton
@onready var hide_for_seconds_row: HBoxContainer = %HideForSecondsRow
@onready var hide_for_seconds_label: Label = %HideForSecondsLabel
@onready var lower_hide_for_seconds_button: Button = %LowerHideForSecondsButton
@onready var increase_hide_for_seconds_button: Button = %IncreaseHideForSecondsButton
@onready var hide_length_button: CheckButton = %HideLengthCheckButton
@onready var hide_ticks_button: CheckButton = %HideTicksCheckButton
@onready var score_label: Label = %ScoreLabel
@onready var lower_winning_score_button: Button = %LowerButton
@onready var increase_winning_score_button: Button = %IncreaseButton
@onready var inspiration_speed_label: Label = %InspirationListSpeedLabel
@onready var lower_inspiration_speed_button: Button = %LowerInspirationSpeedButton
@onready var increase_inspiration_speed_button: Button = %IncreaseInspirationSpeedButton


func _ready() -> void:
	auto_repeat_button.toggled.connect(_save_toggle.bind(&"auto_repeat_song"))
	stop_after_current_button.toggled.connect(_save_toggle.bind(&"stop_after_current"))
	hide_next_track_button.toggled.connect(_save_toggle.bind(&"hide_next_track"))
	hide_beginning_button.toggled.connect(_on_hide_beginning_toggled)
	hide_length_button.toggled.connect(_save_toggle.bind(&"hide_length"))
	hide_ticks_button.toggled.connect(_save_toggle.bind(&"hide_ticks"))
	lower_winning_score_button.pressed.connect(lower_winning_score)
	increase_winning_score_button.pressed.connect(increase_winning_score)
	lower_inspiration_speed_button.pressed.connect(lower_inspiration_speed)
	increase_inspiration_speed_button.pressed.connect(increase_inspiration_speed)
	lower_hide_for_seconds_button.pressed.connect(lower_hide_for_seconds)
	increase_hide_for_seconds_button.pressed.connect(increase_hide_for_seconds)
	visibility_changed.connect(_on_visibility_changed)
	show_settings()


## Shows the current settings. This runs every time the card opens, in case a setting
## was changed somewhere else.
func show_settings() -> void:
	auto_repeat_button.set_pressed_no_signal(Settings.auto_repeat_song)
	stop_after_current_button.set_pressed_no_signal(Settings.stop_after_current)
	hide_next_track_button.set_pressed_no_signal(Settings.hide_next_track)
	hide_beginning_button.set_pressed_no_signal(Settings.hide_beginning)
	hide_length_button.set_pressed_no_signal(Settings.hide_length)
	hide_ticks_button.set_pressed_no_signal(Settings.hide_ticks)
	hide_for_seconds_row.visible = Settings.hide_beginning
	hide_for_seconds_label.text = "%d" % Settings.hide_for_seconds
	score_label.text = str(Settings.winning_score)
	inspiration_speed_label.text = str(Settings.inspiration_list_speed)
	_fit_to_rows()


func lower_winning_score() -> void:
	set_winning_score(Settings.winning_score - 1)


func increase_winning_score() -> void:
	set_winning_score(Settings.winning_score + 1)


## Sets the winning score, never below 1.
func set_winning_score(new_score: int) -> void:
	Settings.winning_score = maxi(new_score, 1)
	score_label.text = str(Settings.winning_score)
	Settings.save_settings()


func lower_inspiration_speed() -> void:
	Settings.inspiration_list_speed = maxi(Settings.inspiration_list_speed - 1, 1)
	inspiration_speed_label.text = str(Settings.inspiration_list_speed)
	Settings.save_settings()


func increase_inspiration_speed() -> void:
	Settings.inspiration_list_speed += 1
	inspiration_speed_label.text = str(Settings.inspiration_list_speed)
	Settings.save_settings()


func lower_hide_for_seconds() -> void:
	Settings.hide_for_seconds = maxf(Settings.hide_for_seconds - 1.0, 0.0)
	hide_for_seconds_label.text = "%d" % Settings.hide_for_seconds
	Settings.save_settings()


func increase_hide_for_seconds() -> void:
	Settings.hide_for_seconds = minf(Settings.hide_for_seconds + 1.0, MAX_HIDE_SECONDS)
	hide_for_seconds_label.text = "%d" % Settings.hide_for_seconds
	Settings.save_settings()


# Sets the on/off quiz setting named [param setting] and saves the quiz settings
func _save_toggle(on: bool, setting: StringName) -> void:
	Settings.set(setting, on)
	Settings.save_settings()


func _on_hide_beginning_toggled(on: bool) -> void:
	_save_toggle(on, &"hide_beginning")
	hide_for_seconds_row.visible = on
	_fit_to_rows()


# Grows or shrinks the card upward, keeping its bottom edge in place
func _fit_to_rows() -> void:
	var height: float = rows.get_combined_minimum_size().y + PADDING.y * 2
	card_panel.position.y = -height
	card_panel.size.y = height
	rows.position = PADDING
	rows.size = Vector2(card_panel.size.x - PADDING.x * 2, height - PADDING.y * 2)


func _on_visibility_changed() -> void:
	if visible:
		show_settings()