extends Control

const Style := preload("res://scripts/ui/ui_style.gd")
const MIN_DETAILS := 10
const MAX_DETAILS := 4000
const CATEGORIES := [
	{"id": "bug", "label": "Bug / technical issue"},
	{"id": "usability", "label": "Usability"},
	{"id": "feature_request", "label": "Feature request"},
	{"id": "account", "label": "Account"},
	{"id": "other", "label": "Other feedback"}
]

var panel: PanelContainer
var form: VBoxContainer
var success: VBoxContainer
var group: ButtonGroup
var details: TextEdit
var count: Label
var error_label: Label
var submit_button: Button
var cancel_button: Button
var receipt_label: Label
var context_label: Label
var current_context := {}


func _ready() -> void:
	visible = false
	top_level = true
	mouse_filter = Control.MOUSE_FILTER_STOP
	set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	var dim := ColorRect.new()
	dim.color = Color(0, 0, 0, 0.72)
	dim.set_anchors_preset(Control.PRESET_FULL_RECT)
	add_child(dim)
	var center := CenterContainer.new()
	center.set_anchors_preset(Control.PRESET_FULL_RECT)
	add_child(center)
	panel = PanelContainer.new()
	panel.custom_minimum_size = Vector2(700, 590)
	panel.add_theme_stylebox_override("panel", Style.panel_box(Style.SURFACE_DARK, Style.CYAN))
	center.add_child(panel)
	var root := VBoxContainer.new()
	root.add_theme_constant_override("separation", 12)
	panel.add_child(root)
	var title := Label.new()
	title.text = "Send feedback"
	Style.set_label(title, 26, Style.TEXT)
	root.add_child(title)
	form = VBoxContainer.new()
	form.add_theme_constant_override("separation", 10)
	root.add_child(form)
	var prompt := Label.new()
	prompt.text = "What would you like to report?"
	Style.set_label(prompt, 17, Style.CYAN)
	form.add_child(prompt)
	group = ButtonGroup.new()
	group.allow_unpress = false
	var category_grid := GridContainer.new()
	category_grid.columns = 2
	form.add_child(category_grid)
	for category in CATEGORIES:
		var option := CheckBox.new()
		option.text = str(category["label"])
		option.set_meta("category", str(category["id"]))
		option.button_group = group
		option.toggled.connect(func(_pressed: bool): _refresh())
		category_grid.add_child(option)
	var detail_header := HBoxContainer.new()
	form.add_child(detail_header)
	var detail_title := Label.new()
	detail_title.text = "Details"
	detail_title.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	detail_header.add_child(detail_title)
	count = Label.new()
	detail_header.add_child(count)
	details = TextEdit.new()
	details.placeholder_text = "Describe what happened, what you expected, and how to reproduce it when applicable."
	details.custom_minimum_size = Vector2(0, 210)
	details.size_flags_vertical = Control.SIZE_EXPAND_FILL
	details.wrap_mode = TextEdit.LINE_WRAPPING_BOUNDARY
	details.text_changed.connect(_refresh)
	form.add_child(details)
	context_label = Label.new()
	context_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	Style.set_label(context_label, 13, Style.MUTED)
	form.add_child(context_label)
	error_label = Label.new()
	error_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	Style.set_label(error_label, 14, Style.RED)
	form.add_child(error_label)
	var actions := HBoxContainer.new()
	actions.add_theme_constant_override("separation", 10)
	form.add_child(actions)
	cancel_button = Button.new()
	cancel_button.text = "Cancel"
	cancel_button.pressed.connect(hide_dialog)
	actions.add_child(cancel_button)
	submit_button = Button.new()
	submit_button.text = "Send feedback"
	submit_button.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	Style.style_primary_button(submit_button)
	submit_button.pressed.connect(_submit)
	actions.add_child(submit_button)
	success = VBoxContainer.new()
	success.visible = false
	success.alignment = BoxContainer.ALIGNMENT_CENTER
	success.add_theme_constant_override("separation", 16)
	root.add_child(success)
	receipt_label = Label.new()
	receipt_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	receipt_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	Style.set_label(receipt_label, 21, Style.LIME)
	success.add_child(receipt_label)
	var close := Button.new()
	close.text = "Close"
	Style.style_primary_button(close)
	close.pressed.connect(_close_success)
	success.add_child(close)
	FeedbackService.feedback_submitted.connect(_submitted)
	FeedbackService.feedback_failed.connect(_failed)
	resized.connect(_refresh_size)
	_refresh_size()
	_refresh()


func show_dialog(context: Dictionary) -> void:
	current_context = context.duplicate(true)
	form.visible = true
	success.visible = false
	error_label.text = ""
	context_label.text = "Included context: %s, %s, %dx%d, version %s (%s)." % [
		context.get("screen", "unknown"), context.get("platform", "unknown"),
		context.get("viewportWidth", 0), context.get("viewportHeight", 0),
		context.get("appVersion", "unknown"), context.get("buildRevision", "unknown")]
	visible = true
	move_to_front()
	BlockSessionService.pause_current_question_timer()
	_refresh()


func hide_dialog() -> void:
	if FeedbackService.is_submitting:
		return
	visible = false
	BlockSessionService.resume_current_question_timer()


func _close_success() -> void:
	details.text = ""
	for button in group.get_buttons():
		button.button_pressed = false
	hide_dialog()


func _unhandled_input(event: InputEvent) -> void:
	if visible and event.is_action_pressed("ui_cancel"):
		hide_dialog()
		get_viewport().set_input_as_handled()


func _refresh_size() -> void:
	if panel != null:
		panel.custom_minimum_size = Vector2(minf(700.0, maxf(300.0, size.x - 32.0)), minf(590.0, maxf(430.0, size.y - 32.0)))


func _refresh() -> void:
	if details == null:
		return
	var length := details.text.strip_edges().length()
	count.text = "%d / %d" % [length, MAX_DETAILS]
	var selected := group.get_pressed_button()
	var category := "" if selected == null else str(selected.get_meta("category", ""))
	submit_button.disabled = FeedbackService.is_submitting or not is_valid_submission(category, details.text)
	cancel_button.disabled = FeedbackService.is_submitting


static func is_valid_submission(category: String, value: String) -> bool:
	var valid_categories := ["bug", "usability", "feature_request", "account", "other"]
	var length := value.strip_edges().length()
	return valid_categories.has(category) and length >= MIN_DETAILS and length <= MAX_DETAILS


func _submit() -> void:
	var selected := group.get_pressed_button()
	if selected == null:
		return
	error_label.text = ""
	submit_button.text = "Sending..."
	_refresh()
	FeedbackService.submit(str(selected.get_meta("category", "")), details.text.strip_edges(), current_context)


func _submitted(receipt_id: String) -> void:
	submit_button.text = "Send feedback"
	form.visible = false
	success.visible = true
	receipt_label.text = "Feedback sent\nReceipt: %s" % receipt_id
	UISoundService.play_sound("confirmation")


func _failed(message: String) -> void:
	submit_button.text = "Send feedback"
	error_label.text = message
	_refresh()
	UISoundService.play_sound("error")