extends Control

@onready var label = %RichTextLabel as RichTextLabel

var pending_bbcode = []
var tweening := false


func _ready():
	label.clear()
	modulate = Color(1, 1, 1, 0)
	# test notification in editor
	# if GlobalConfig.DEBUG:
	# 	call_deferred("test")


# func test():
# 	# append_dialog("吕萍", "Hello, 2! very very long message, very very loooonnnggggggg!")
# 	append_note("Hello, 3!")
# 	# append_note("Hello, blue!", "blue", 1)
# 	append_dialog("车夫", "你好!", "green")
# 	pass


func append_note(note: String, note_color := "white", duration := 2.5) -> void:
	pending_bbcode.append(
		["[center][color=" + note_color + "]" + note + "[/color][/center]", duration, false]
	)
	_show()


func append_dialog(
	character: String,
	content: String,
	character_color := "orange",
	content_color := "white",
	duration := 2.5
) -> void:
	# remove non-dialog notifications
	for _i in range(pending_bbcode.size()):
		var triple = pending_bbcode.pop_front()
		if not triple[2]:
			continue
		pending_bbcode.append(triple)
	pending_bbcode.append(
		[
			(
				"[center][color="
				+ character_color
				+ "][b]"
				+ character
				+ ":[/b][/color][color="
				+ content_color
				+ "]"
				+ content
				+ "[/color][/center]"
			),
			duration,
			true
		]
	)
	_show()


func _show() -> void:
	if not tweening and pending_bbcode.size() > 0:
		var triple = pending_bbcode.pop_front()
		label.parse_bbcode(triple[0])
		if triple[2]:
			label.add_theme_color_override("font_shadow_color", Color(0.2, 0.2, 0.2, 0.6))
		else:
			label.remove_theme_color_override("font_shadow_color")
		tweening = true
		var tween = create_tween()
		# 0.5s to show the notification
		tween.tween_property(self, "modulate:a", 1, 0.2).set_trans(Tween.TRANS_CUBIC)
		# keep the notification
		tween.tween_interval(max(triple[1] - 0.4, 0))
		# 0.5s to hide the notification
		tween.tween_property(self, "modulate:a", 0, 0.2).set_trans(Tween.TRANS_CUBIC)
		# callback
		tween.tween_callback(_check_next)


func _check_next():
	tweening = false
	_show()