@tool
extends EditorPlugin


const WORKSPACE_SCENE := preload(
	"res://editor/workspace/EscapeRoomWorkspace.tscn"
)

const DATABASE_SETTING := (
	"arcade_escape/project_database"
)

const ROOM_SETTING := (
	"arcade_escape/default_room"
)


var pcb_inspector: EditorInspectorPlugin
var workspace: EscapeRoomWorkspace


func _enter_tree() -> void:
	pcb_inspector = preload("res://addons/escape_room/pcb_inspector.gd").new()
	add_inspector_plugin(pcb_inspector)
	_ensure_project_settings()
	_create_workspace()


func _exit_tree() -> void:
	remove_inspector_plugin(pcb_inspector)
	pcb_inspector = null
	_destroy_workspace()


func _has_main_screen() -> bool:
	return true


func _make_visible(visible: bool) -> void:
	if workspace != null:
		workspace.visible = visible


func _get_plugin_name() -> String:
	return "Escape Room"


func _get_plugin_icon() -> Texture2D:
	return EditorInterface.get_editor_theme().get_icon(
		"Node2D",
		"EditorIcons"
	)


func _create_workspace() -> void:

	if workspace != null:
		return

	var database := _load_project_database()
	var room := _load_default_room()

	if database == null:
		return

	if room == null:
		return

	workspace = WORKSPACE_SCENE.instantiate()
	
	workspace.set_undo_redo_manager(
		get_undo_redo()
	)

	EditorInterface.get_editor_main_screen().add_child(
		workspace
	)

	workspace.set_anchors_and_offsets_preset(
		Control.PRESET_FULL_RECT
	)

	if not workspace.configure(
		database,
		room
	):
		push_error(
			"Arcade Escape editor workspace failed to configure."
		)

	_make_visible(false)


func _destroy_workspace() -> void:
	if workspace == null:
		return

	if is_instance_valid(workspace):
		workspace.queue_free()

	workspace = null

func _ensure_project_settings() -> void:

	if not ProjectSettings.has_setting(
		DATABASE_SETTING
	):
		ProjectSettings.set_setting(
			DATABASE_SETTING,
			"res://data/project_database.tres"
		)

		ProjectSettings.set_initial_value(
			DATABASE_SETTING,
			"res://data/project_database.tres"
		)

	if not ProjectSettings.has_setting(
		ROOM_SETTING
	):
		ProjectSettings.set_setting(
			ROOM_SETTING,
			"res://data/rooms/arcade_room.tres"
		)

		ProjectSettings.set_initial_value(
			ROOM_SETTING,
			"res://data/rooms/arcade_room.tres"
		)

	ProjectSettings.save()

func _load_project_database() -> ProjectDatabase:

	var path := String(
		ProjectSettings.get_setting(
			DATABASE_SETTING,
			""
		)
	)

	if path.is_empty():
		push_error(
			"Arcade Escape project database path is empty."
		)
		return null

	var resource := ResourceLoader.load(
		path
	)

	if not resource is ProjectDatabase:
		push_error(
			"Arcade Escape expected ProjectDatabase at '%s'."
			% path
		)
		return null

	return resource as ProjectDatabase

func _load_default_room() -> RoomDefinition:

	var path := String(
		ProjectSettings.get_setting(
			ROOM_SETTING,
			""
		)
	)

	if path.is_empty():
		push_error(
			"Arcade Escape default room path is empty."
		)
		return null

	var resource := ResourceLoader.load(
		path
	)

	if not resource is RoomDefinition:
		push_error(
			"Arcade Escape expected RoomDefinition at '%s'."
			% path
		)
		return null

	return resource as RoomDefinition