extends CanvasLayer

const _VP_W := 1280.0
const _VP_H := 720.0
const _MARGIN := 16.0
const _SFX_PATH := "res://assets/music&sfx/sfx/achievement_unlock.wav"

var _font = preload("res://assets/fonts/slkscre.ttf")
var _panel: PanelContainer

func _ready() -> void:
	layer = 100
	process_mode = Node.PROCESS_MODE_ALWAYS

	_panel = PanelContainer.new()
	_panel.custom_minimum_size = Vector2(310.0, 76.0)
	_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE

	var style := StyleBoxFlat.new()
	style.bg_color = Color(0.04, 0.04, 0.12, 0.96)
	style.border_width_left = 2
	style.border_width_top = 2
	style.border_width_right = 2
	style.border_width_bottom = 2
	style.border_color = Color(0.78, 0.62, 0.18, 1.0)
	style.corner_radius_top_left = 3
	style.corner_radius_top_right = 3
	style.corner_radius_bottom_right = 3
	style.corner_radius_bottom_left = 3
	style.content_margin_left = 8.0
	style.content_margin_top = 8.0
	style.content_margin_right = 12.0
	style.content_margin_bottom = 8.0
	_panel.add_theme_stylebox_override("panel", style)

	_panel.position = Vector2(_VP_W + 8.0, _VP_H - 76.0 - _MARGIN)
	add_child(_panel)


func show_unlock(ach: Dictionary) -> void:
	var hbox := HBoxContainer.new()
	hbox.add_theme_constant_override("separation", 10)
	hbox.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_panel.add_child(hbox)

	# Icon square
	var icon_wrap := Control.new()
	icon_wrap.custom_minimum_size = Vector2(52, 52)
	icon_wrap.mouse_filter = Control.MOUSE_FILTER_IGNORE
	hbox.add_child(icon_wrap)

	var icon_bg := ColorRect.new()
	icon_bg.color = ach.color
	icon_bg.mouse_filter = Control.MOUSE_FILTER_IGNORE
	icon_bg.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	icon_wrap.add_child(icon_bg)

	var icon_lbl := Label.new()
	icon_lbl.text = ach.icon_char
	icon_lbl.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	icon_lbl.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
	icon_lbl.mouse_filter = Control.MOUSE_FILTER_IGNORE
	icon_lbl.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	icon_lbl.add_theme_font_override("font", _font)
	icon_lbl.add_theme_font_size_override("font_size", 22)
	icon_lbl.add_theme_color_override("font_color", Color(1.0, 1.0, 0.88))
	icon_lbl.add_theme_color_override("font_outline_color", Color(0.0, 0.0, 0.0, 0.8))
	icon_lbl.add_theme_constant_override("outline_size", 2)
	icon_wrap.add_child(icon_lbl)

	# Text block
	var vbox := VBoxContainer.new()
	vbox.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	vbox.mouse_filter = Control.MOUSE_FILTER_IGNORE
	hbox.add_child(vbox)

	var header := Label.new()
	header.text = "Achievement Unlocked!"
	header.mouse_filter = Control.MOUSE_FILTER_IGNORE
	header.add_theme_font_override("font", _font)
	header.add_theme_font_size_override("font_size", 13)
	header.add_theme_color_override("font_color", Color(0.78, 0.62, 0.18, 1.0))
	vbox.add_child(header)

	var title_lbl := Label.new()
	title_lbl.text = ach.title
	title_lbl.mouse_filter = Control.MOUSE_FILTER_IGNORE
	title_lbl.add_theme_font_override("font", _font)
	title_lbl.add_theme_font_size_override("font_size", 20)
	title_lbl.add_theme_color_override("font_color", Color(1.0, 0.95, 0.8, 1.0))
	vbox.add_child(title_lbl)

	_play_sound()
	# Wait one frame so the panel has its final size before animating
	await get_tree().process_frame
	_animate()


func _play_sound() -> void:
	if not ResourceLoader.exists(_SFX_PATH):
		return
	var sfx := AudioStreamPlayer.new()
	sfx.stream = load(_SFX_PATH)
	sfx.volume_db = -2.0
	sfx.process_mode = Node.PROCESS_MODE_ALWAYS
	add_child(sfx)
	sfx.play()
	sfx.finished.connect(sfx.queue_free)

func _animate() -> void:
	var pw := _panel.size.x
	var target_x := _VP_W - pw - _MARGIN
	_panel.position.x = _VP_W + 8.0

	var tween := create_tween()
	tween.set_pause_mode(Tween.TWEEN_PAUSE_PROCESS)
	tween.tween_property(_panel, "position:x", target_x, 0.4)\
		.set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_QUART)
	tween.tween_interval(3.5)
	tween.tween_property(_panel, "position:x", _VP_W + 8.0, 0.3)\
		.set_ease(Tween.EASE_IN).set_trans(Tween.TRANS_QUART)
	tween.tween_callback(queue_free)