extends SceneTree

# Headless gameplay test: run with
#   godot --headless -s res://tests/test_crafter_feedback.gd
# Every press in the ship crafter must say what happened. Reported twice from
# play-testing as "the buttons do nothing".
#
# There is no silent-failure path left to press: storing with an empty hold,
# ordering something the crafter cannot pay for yet, and storing successfully
# all report. The queue in particular is invisible by nature - an order that
# cannot be afforded is accepted and waits (#16), which looks exactly like a
# dead button unless it says so.
#
# Verifies:
#   1. storing with an empty hold explains where ore comes from
#   2. ordering against an empty stock says it is queued AND how much more
#      ore the building needs
#   3. a successful store reports the amount
#   4. the message survives the per-frame status refresh - it used to be
#      overwritten on the very next frame, which is what made a working
#      button look dead
#   5. the message is the FIRST line, not buried under the standing state
#   6. the panel is opened the way the GAME opens it - park the fleet on the
#      crafter and press the action button - and every button then works
#
# Point 6 exists because this test used to set craft_building_id by hand.
# That skipped the one step that was actually broken: opening the panel
# stopped recording WHICH crafter, so every handler bailed out at its `== 0`
# guard while the panel still opened. Reported four times as "the buttons do
# nothing", and invisible to every test that set the id itself.

var game_state: Node
var scene: Node
var controller: Node
var crafter_id: int = 0
var fleet: Node
var stage: int = 0
var elapsed: float = 0.0


func _initialize() -> void:
	game_state = root.get_node("GameState")
	game_state.buildings.clear()
	game_state.extractors.clear()
	game_state.transporters.clear()
	game_state.reset_progression()
	game_state.unlocked = ["shipyards", "coordination", "wing"]
	game_state.rocks = 100
	game_state.fleet_cargo = 0
	game_state.vessels_owed.clear()
	scene = load("res://Main.tscn").instantiate()
	root.add_child(scene)
	controller = scene.get_node("BuildController")
	fleet = scene.get_node("Fleet")


func _tap(button: Control) -> void:
	for pressed in [true, false]:
		var ev: InputEventScreenTouch = InputEventScreenTouch.new()
		ev.pressed = pressed
		ev.position = button.size / 2.0
		button._gui_input(ev)


func _first_line() -> String:
	return controller.craft_status.text.split("\n")[0]


func _process(delta: float) -> bool:
	elapsed += delta
	match stage:
		0:
			scene.get_node("AsteroidField").set_process(false)
			scene.get_node("EnemySpawner").set_process(false)
			for a in get_nodes_in_group("asteroids"):
				if is_instance_valid(a):
					a.queue_free()
			scene.get_node("BuildingField").place(GameState.BUILDING_SHIP_CRAFTER, Vector2(500.0, 0.0))
			crafter_id = int(game_state.buildings[-1].id)
			# Park the fleet ON it and let the action button debounce in.
			for ship in fleet.ships:
				ship.position = Vector2(500.0, 0.0)
			fleet.move_to(Vector2(500.0, 0.0))
			elapsed = 0.0
			stage = 1
			return false
		1:
			if elapsed < 1.2:
				return false
			# --- 6. open it the way the game does ------------------------
			if controller.current_building == null:
				print("TEST_CRAFTER_FEEDBACK: FAIL (fleet parked on the crafter never registered)")
				quit(1)
				return true
			_tap(controller.action_button)
			if not controller.craft_menu.visible:
				print("TEST_CRAFTER_FEEDBACK: FAIL (the action button did not open the crafter panel)")
				quit(1)
				return true
			if controller.craft_building_id != crafter_id:
				print("craft_building_id=%d, crafter is %d" % [controller.craft_building_id, crafter_id])
				print("TEST_CRAFTER_FEEDBACK: FAIL (opening the panel did not record which crafter - every button will bail out)")
				quit(1)
				return true
			print("panel opened from the building, bound to crafter %d" % controller.craft_building_id)

			# --- 1. store with an empty hold ----------------------------
			controller._on_store_ore()
			var empty_msg: String = _first_line()
			if "carrying nothing" not in empty_msg:
				print("got: %s" % empty_msg)
				print("TEST_CRAFTER_FEEDBACK: FAIL (storing with an empty hold said nothing useful)")
				quit(1)
				return true
			print("empty hold -> %s" % empty_msg)

			# --- 2. order against an empty stock ------------------------
			controller._on_craft_interceptor()
			var queued_msg: String = _first_line()
			if "queued" not in queued_msg.to_lower() or "more ore" not in queued_msg:
				print("got: %s" % queued_msg)
				print("TEST_CRAFTER_FEEDBACK: FAIL (a queued order did not say it was queued and what it still needs)")
				quit(1)
				return true
			if game_state.pending_orders(crafter_id) != 1:
				print("TEST_CRAFTER_FEEDBACK: FAIL (the order was not actually queued)")
				quit(1)
				return true
			print("unaffordable order -> %s" % queued_msg)

			# --- 3. a successful store ----------------------------------
			game_state.withdraw_to_fleet(30)
			controller._on_store_ore()
			var stored_msg: String = _first_line()
			if "Stored" not in stored_msg:
				print("got: %s" % stored_msg)
				print("TEST_CRAFTER_FEEDBACK: FAIL (a successful store did not report)")
				quit(1)
				return true
			print("successful store -> %s" % stored_msg)
			elapsed = 0.0
			stage = 2
			return false
		2:
			# --- 4 + 5. it survives the refresh, and stays first --------
			if elapsed < 0.5:
				return false
			controller._refresh_craft_status()
			var still: String = _first_line()
			if "Stored" not in still:
				print("first line half a second later: %s" % still)
				print("TEST_CRAFTER_FEEDBACK: FAIL (the message was overwritten by the per-frame refresh)")
				quit(1)
				return true
			print("half a second later, still first: %s" % still)

			# --- 6. a REAL tap, through the input path ------------------
			# Everything above calls the handlers directly, which is how a
			# whole class of bug kept getting missed: the crafter logic was
			# fine and the BUTTON was inert, blocked by a modal guard. This
			# taps the control the way a touch does.
			game_state.withdraw_to_fleet(20)
			var stock_before: int = game_state.building_stock(crafter_id)
			var store_button: Control = scene.get_node("UI/CraftMenu/StoreOreButton")
			for pressed in [true, false]:
				var ev: InputEventScreenTouch = InputEventScreenTouch.new()
				ev.pressed = pressed
				ev.position = store_button.size / 2.0
				store_button._gui_input(ev)
			if game_state.building_stock(crafter_id) <= stock_before:
				print("stock %d -> %d after tapping Store ore" % [
					stock_before, game_state.building_stock(crafter_id)
				])
				print("TEST_CRAFTER_FEEDBACK: FAIL (tapping the store button did nothing)")
				quit(1)
				return true
			print("real tap on Store ore moved %d ore into the crafter" % [
				game_state.building_stock(crafter_id) - stock_before
			])

			# And the same tap must still work after the build menu has been
			# opened and closed, which used to block every button forever.
			controller._on_build_pressed()
			controller._show_building_info(GameState.BUILDING_SHIP_CRAFTER)
			scene.get_node("UI/BuildMenu").visible = false
			game_state.withdraw_to_fleet(10)
			var stock_mid: int = game_state.building_stock(crafter_id)
			for pressed2 in [true, false]:
				var ev2: InputEventScreenTouch = InputEventScreenTouch.new()
				ev2.pressed = pressed2
				ev2.position = store_button.size / 2.0
				store_button._gui_input(ev2)
			if game_state.building_stock(crafter_id) <= stock_mid:
				print("TEST_CRAFTER_FEEDBACK: FAIL (store button dead after the build menu was opened and closed)")
				quit(1)
				return true
			print("still works after opening and closing the build menu")
			print("TEST_CRAFTER_FEEDBACK: PASS")
			quit(0)
			return true
	return false