class_name RoomController
extends Node


signal scenario_loaded(scenario: ScenarioDefinition)

signal validation_completed(
	result: ValidationResult
)

signal cabinet_status_changed(
	cabinet_id: StringName,
	status: StringName
)

signal room_status_changed(
	status: StringName
)


var database: ProjectDatabase
var active_scenario: ScenarioDefinition

var cabinet_statuses: Dictionary = {}
var room: RoomDefinition

func configure(
	project_database: ProjectDatabase,
	room_definition: RoomDefinition = null
) -> void:

	database = project_database
	room = room_definition


func load_scenario(
	scenario_id: StringName
) -> bool:

	if database == null:
		push_error(
			"RoomController has no ProjectDatabase."
		)
		return false

	var scenario := database.get_scenario(
		scenario_id
	)

	if scenario == null:
		push_error(
			"Scenario '%s' not found."
			% scenario_id
		)
		return false

	active_scenario = scenario

	_initialize_cabinet_statuses()

	print("")
	print("======= ROOM CONTROLLER =======")
	print(
		"Loaded scenario: %s v%d"
		% [
			scenario.display_name,
			scenario.version
		]
	)
	print("===============================")
	print("")

	scenario_loaded.emit(
		active_scenario
	)

	room_status_changed.emit(
		&"LOADED"
	)

	return true


func validate_active_scenario() -> ValidationResult:
	var result := ValidationResult.new()

	result.merge(
		ScenarioValidator.validate(
			active_scenario
		)
	)

	if room != null:
		result.merge(
			RoomValidator.validate(
				room,
				database
			)
		)

	validation_completed.emit(
		result
	)

	if result.is_valid():
		room_status_changed.emit(
			&"VALID"
		)
	else:
		room_status_changed.emit(
			&"INVALID"
		)

	return result


func prep_room() -> bool:
	if active_scenario == null:
		push_error(
			"Cannot prep room: no scenario loaded."
		)
		return false

	var validation := validate_active_scenario()

	if not validation.is_valid():
		print(
			"[ROOM CONTROLLER] Prep aborted: "
			+ validation.get_summary()
		)

		room_status_changed.emit(
			&"PREP_FAILED"
		)

		return false

	room_status_changed.emit(
		&"PREPARING"
	)

	print("")
	print("=========== PREP ROOM ===========")

	for assignment in active_scenario.assignments:
		_prep_assignment(assignment)

	print("=================================")
	print("")

	room_status_changed.emit(
		&"READY"
	)

	return true


func _prep_assignment(
	assignment: ScenarioAssignment
) -> void:

	var cabinet := assignment.cabinet
	var game := assignment.game

	_set_cabinet_status(
		cabinet.cabinet_id,
		&"PREPARING"
	)

	print(
		"[ROOM CONTROLLER] Cabinet '%s'"
		% cabinet.cabinet_id
	)

	print(
		"    Game: %s"
		% game.game_id
	)

	print(
		"    Variant: %s"
		% assignment.variant
	)

	print(
		"    Hardware: %s"
		% cabinet.hardware_config.controller_id
	)

	#
	# Networking will eventually happen here.
	#
	# send_to_cabinet(
	#     cabinet.cabinet_id,
	#     scenario,
	#     assignment
	# )
	#

	print(
		"    [SIMULATION] Cabinet ready."
	)

	_set_cabinet_status(
		cabinet.cabinet_id,
		&"READY"
	)


func _initialize_cabinet_statuses() -> void:
	cabinet_statuses.clear()

	if active_scenario == null:
		return

	for assignment in active_scenario.assignments:

		if assignment == null:
			continue

		if assignment.cabinet == null:
			continue

		_set_cabinet_status(
			assignment.cabinet.cabinet_id,
			&"NOT_PREPARED"
		)


func _set_cabinet_status(
	cabinet_id: StringName,
	status: StringName
) -> void:

	cabinet_statuses[cabinet_id] = status

	cabinet_status_changed.emit(
		cabinet_id,
		status
	)


func get_cabinet_status(
	cabinet_id: StringName
) -> StringName:

	return cabinet_statuses.get(
		cabinet_id,
		&"UNKNOWN"
	)

func simulate_game_event(
	cabinet_id: StringName,
	event_name: StringName
) -> void:

	if active_scenario == null:
		push_error(
			"Cannot simulate event: no active scenario."
		)
		return

	var assignment := (
		active_scenario
		.get_assignment_for_cabinet(
			cabinet_id
		)
	)

	if assignment == null:
		push_error(
			"No assignment exists for cabinet '%s'."
			% cabinet_id
		)
		return

	print("")
	print(
		"[ROOM SIMULATION] %s -> %s"
		% [
			cabinet_id,
			event_name
		]
	)

	var actions := (
		assignment
		.get_actions_for_event(
			event_name
		)
	)

	if actions.is_empty():
		print(
			"[ROOM SIMULATION] No actions mapped."
		)
		return

	for action_id in actions:

		print(
			"[ROOM SIMULATION] %s -> %s"
			% [
				event_name,
				action_id
			]
		)

		HardwareManager.trigger_for_cabinet(
			assignment.cabinet,
			action_id,
			{
				"game_event": event_name
			}
		)