extends ConfirmationDialog


class Template:
	var resolution : Vector2
	var name : String


	func _init(_resolution : Vector2, _name := "") -> void:
		resolution = _resolution
		name = _name


var aspect_ratio := 1.0
var templates := [
	Template.new(Vector2(16, 16)),
	Template.new(Vector2(32, 32)),
	Template.new(Vector2(64, 64)),
	Template.new(Vector2(128, 128)),
	Template.new(Vector2(160, 144), "GB"),
	Template.new(Vector2(240, 160), "GBA"),
	Template.new(Vector2(256, 224), "NES (NTSC)"),
	Template.new(Vector2(256, 240), "NES (PAL)"),
	Template.new(Vector2(512, 448), "SNES (NTSC)"),
	Template.new(Vector2(512, 480), "SNES (PAL)"),
]

onready var templates_options = find_node("TemplatesOptions")
onready var ratio_box = find_node("AspectRatioButton")
onready var width_value = find_node("WidthValue")
onready var height_value = find_node("HeightValue")
onready var portrait_button = find_node("PortraitButton")
onready var landscape_button = find_node("LandscapeButton")
onready var fill_color_node = find_node("FillColor")


func _ready() -> void:
	width_value.value = Global.default_image_width
	height_value.value = Global.default_image_height
	aspect_ratio = width_value.value / height_value.value
	fill_color_node.color = Global.default_fill_color
	fill_color_node.get_picker().presets_visible = false

	_create_option_list()


func _create_option_list() -> void:
	var i := 1
	for template in templates:
		if template.name != "":
			templates_options.add_item("{width}x{height} - {name}".format({"width":template.resolution.x, "height":template.resolution.y, "name":template.name}), i)
		else:
			templates_options.add_item("{width}x{height}".format({"width":template.resolution.x, "height":template.resolution.y}), i)

		i += 1


func _on_CreateNewImage_confirmed() -> void:
	var width : int = width_value.value
	var height : int = height_value.value
	var fill_color : Color = fill_color_node.color
	Global.canvas.fill_color = fill_color

	var frame : Frame = Global.canvas.new_empty_frame(false, true, Vector2(width, height))
	var new_project := Project.new([frame], tr("untitled"), Vector2(width, height).floor())
	new_project.layers.append(Layer.new())
	Global.projects.append(new_project)
	Global.tabs.current_tab = Global.tabs.get_tab_count() - 1
	Global.canvas.camera_zoom()


func _on_AspectRatioButton_toggled(_button_pressed : bool) -> void:
	aspect_ratio = width_value.value / height_value.value


func _on_SizeValue_value_changed(value: float) -> void:
	if ratio_box.pressed:
		if width_value.value == value:
			height_value.value = width_value.value / aspect_ratio
		if height_value.value == value:
			width_value.value = height_value.value * aspect_ratio

	toggle_size_buttons()


func toggle_size_buttons() -> void:
	portrait_button.disconnect("toggled", self, "_on_PortraitButton_toggled")
	landscape_button.disconnect("toggled", self, "_on_LandscapeButton_toggled")
	portrait_button.pressed = width_value.value < height_value.value
	landscape_button.pressed = width_value.value > height_value.value

	portrait_button.connect("toggled", self, "_on_PortraitButton_toggled")
	landscape_button.connect("toggled", self, "_on_LandscapeButton_toggled")


func _on_TemplatesOptions_item_selected(id : int) -> void:
	if id > 0:
		width_value.value = templates[id - 1].resolution.x
		height_value.value = templates[id - 1].resolution.y
	else:
		width_value.value = Global.default_image_width
		height_value.value = Global.default_image_height


func _on_PortraitButton_toggled(button_pressed : bool) -> void:
	if !button_pressed or height_value.value > width_value.value:
		toggle_size_buttons()
		return
	switch_width_height()


func _on_LandscapeButton_toggled(button_pressed : bool) -> void:
	if !button_pressed or width_value.value > height_value.value:
		toggle_size_buttons()
		return
	switch_width_height()


func switch_width_height() -> void:
	width_value.disconnect("value_changed", self, "_on_SizeValue_value_changed")
	height_value.disconnect("value_changed", self, "_on_SizeValue_value_changed")

	var height = height_value.value
	height_value.value = width_value.value
	width_value.value = height
	toggle_size_buttons()

	width_value.connect("value_changed", self, "_on_SizeValue_value_changed")
	height_value.connect("value_changed", self, "_on_SizeValue_value_changed")