class_name ControlsSettingsScreen
extends Control

signal rebind_requested(action_id: StringName)
signal restore_defaults_requested
signal conflict_resolution_requested(swap_bindings: bool)
signal back_requested

const InputBindingSnapshot = preload(
	"res://game/application/input/input_binding_snapshot.gd"
)
const RebindResult = preload("res://game/application/input/rebind_result.gd")

@onready var _rows: VBoxContainer = %Rows
@onready var _status_label: Label = %StatusLabel
@onready var _conflict_panel: PanelContainer = %ConflictPanel
@onready var _conflict_label: Label = %ConflictLabel


func _ready() -> void:
	process_mode = Node.PROCESS_MODE_ALWAYS
	%RestoreButton.pressed.connect(func() -> void: restore_defaults_requested.emit())
	%BackButton.pressed.connect(func() -> void: back_requested.emit())
	%SwapButton.pressed.connect(func() -> void: conflict_resolution_requested.emit(true))
	%CancelConflictButton.pressed.connect(
		func() -> void: conflict_resolution_requested.emit(false)
	)
	_conflict_panel.visible = false


func present_bindings(bindings: Array[InputBindingSnapshot]) -> void:
	for child: Node in _rows.get_children():
		child.queue_free()
	for binding: InputBindingSnapshot in bindings:
		var row := HBoxContainer.new()
		row.custom_minimum_size.y = 42.0
		var label := Label.new()
		label.text = binding.label
		label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		var button := Button.new()
		button.custom_minimum_size.x = 180.0
		button.text = binding.binding_text
		button.pressed.connect(_on_binding_button_pressed.bind(binding.action_id))
		row.add_child(label)
		row.add_child(button)
		_rows.add_child(row)


func _on_binding_button_pressed(action_id: StringName) -> void:
	rebind_requested.emit(action_id)


func present_rebind_result(result: RebindResult) -> void:
	_status_label.text = result.message
	if result.conflicting_action_id.is_empty():
		_conflict_panel.visible = false
		return
	_conflict_label.text = (
		"La touche %s est déjà utilisée. Permuter les deux commandes ?"
		% result.binding_text
	)
	_conflict_panel.visible = true


func show_waiting_for_key() -> void:
	_status_label.text = "Appuyez sur une touche · Échap pour annuler"
	_conflict_panel.visible = false