@tool
extends Control

@export var locked := false:
	set(val):
		locked = val
		if is_node_ready() and locked:
			display = false
@export var display := false:
	set(val):
		if is_node_ready() and display != val:
			_toggle_display()
		display = val
@export var boundart_rect := Rect2(0, 0, 1000, 1000):
	set(val):
		boundart_rect = val
		queue_redraw()
@export_group("Tip", "tip_")
@export var tip_content := "":
	set(val):
		tip_content = val
		if is_node_ready():
			reload()
@export var tip_font_size := 12
@export var tip_font_color := Color(1, 1, 1)
@export var tip_item_position := Vector2(220, 220)

@onready var tip_container = $Tips as GridContainer
@onready var items_root = $ItemsRoot as Node2D

var sty_box_empty := StyleBoxEmpty.new()

var item_scene := preload("res://scene/journal/journal_item.tscn")
var tip_script := preload("res://scene/journal/journal_tip.gd")
var item_script := preload("res://scene/journal/journal_item.gd")
var items_dict := {}


func _ready() -> void:
	reload()
	if GlobalConfig.DEBUG:
		locked = false
		display = true
	else:
		locked = true
		display = false
	_toggle_display(false)


func reload():
	for c in tip_container.get_children():
		c.queue_free()
	for v in items_dict.values():
		v.queue_free()
	items_dict.clear()
	var btn_name_prefix = "tip_btn_"
	for i in range(tip_content.length()):
		var tip = tip_content[i] as String
		var btn_margin = MarginContainer.new()
		btn_margin.set("theme_override_constants/margin_left", -5)
		btn_margin.set("theme_override_constants/margin_right", -5)
		btn_margin.set("theme_override_constants/margin_top", -4)
		btn_margin.set("theme_override_constants/margin_bottom", -4)
		var tip_btn = Button.new()
		tip_btn.flat = true
		tip_btn.text = tip
		tip_btn.toggle_mode = true
		tip_btn.set("theme_override_styles/focus", sty_box_empty)
		tip_btn.set("theme_override_font_sizes/font_size", tip_font_size)
		tip_btn.custom_minimum_size = Vector2(tip_font_size, tip_font_size)
		tip_btn.add_theme_color_override("font_color", tip_font_color)
		tip_btn.size_flags_horizontal = Control.SIZE_SHRINK_CENTER
		tip_btn.size_flags_vertical = Control.SIZE_SHRINK_CENTER
		tip_btn.set_script(tip_script)
		tip_btn.toggled.connect(_on_toggle_btn.bind(tip, tip_btn))
		tip_btn.name = btn_name_prefix + str(i)
		btn_margin.add_child(tip_btn)
		tip_container.add_child(btn_margin)
		# items_dict[tip] = tip_btn


func _on_toggle_btn(toggled_on: bool, content: String, btn) -> void:
	if not toggled_on and items_dict.has(btn.name):
		items_dict[btn.name].queue_free()
		items_dict.erase(content)
	elif toggled_on:
		var item = item_scene.instantiate()
		item.label_text = content
		item.boundart_rect = boundart_rect
		item.position = tip_item_position + Vector2(randf_range(-10, 10), randf_range(-10, 10))
		items_root.add_child(item)
		items_dict[btn.name] = item


func _draw() -> void:
	if Engine.is_editor_hint():
		# draw boundart_rect frame
		draw_rect(boundart_rect, Color(1, 0, 0), false, 2)


var display_tween: Tween


func _toggle_display(use_tween := true):
	if display_tween and display_tween.is_running():
		display_tween.kill()
	if display:
		if use_tween:
			display_tween = create_tween()
			# from bottom to top
			display_tween.tween_property(self, "position:y", 0.0, 0.5).set_trans(Tween.TRANS_CUBIC)
			# unlock items after display
			display_tween.tween_callback(_toggle_items_lock.bind(false))
		else:
			position.y = 0
			_toggle_items_lock(false)
	else:
		# lock items before hide
		_toggle_items_lock(true)
		if use_tween:
			display_tween = create_tween()
			# from top to bottom
			display_tween.tween_property(self, "position:y", 320.0, 0.5).set_trans(
				Tween.TRANS_CUBIC
			)
		else:
			position.y = 320.0


func _toggle_items_lock(lock: bool) -> void:
	for v in items_dict.values():
		v.locked = lock


func _unhandled_input(event: InputEvent) -> void:
	if event.is_action_pressed("toggle_journal"):
		if locked:
			# TODO 使用 icon，去重
			SceneManager.pop_notification("🔒")
			return
		display = !display
		get_viewport().set_input_as_handled()