extends SceneTree

var failures: Array[String] = []


func _initialize() -> void:
	call_deferred("_run")


func _run() -> void:
	var main_scene: Node = load("res://main.tscn").instantiate()
	root.add_child(main_scene)
	await process_frame
	for _frame in 10:
		await physics_frame

	var simulation_manager: Node = main_scene.get_node("SimulationManager")
	simulation_manager.set_process(false)
	var saved_clock_ticks: int = simulation_manager.clock.elapsed_ticks
	simulation_manager.clock.elapsed_ticks = 0
	await process_frame
	await process_frame
	var environment: Environment = (
		(main_scene.get_node("JajceWorld/WorldEnvironment") as WorldEnvironment).environment
	)
	_check(
		is_equal_approx(environment.ambient_light_energy, 0.25),
		"Day/night presentation should follow the authoritative simulation clock"
	)
	simulation_manager.clock.elapsed_ticks = saved_clock_ticks
	await process_frame

	_check(simulation_manager.npcs.size() == 6, "Baseline should create six NPCs")
	var inspector_label := (
		main_scene.get_node("UI/NpcInspectorPanel/MarginContainer/NpcInspectorLabel") as Label
	)
	_check(
		(
			"Relationship:" in inspector_label.text
			and "familiar 50%" in inspector_label.text
			and "trust 50%" in inspector_label.text
		),
		"Runtime inspector should render authoritative directed relationship state"
	)
	var contributor: SimNPC = simulation_manager.npcs[0]
	var witness: SimNPC = simulation_manager.npcs[1]
	var listener: SimNPC = simulation_manager.npcs[2]
	for npc in simulation_manager.npcs:
		npc.position = Vector3(20.0 + npc.id * 2.0, 0.0, 0.0)
	contributor.position = Vector3.ZERO
	witness.position = Vector3(4.0, 0.0, 0.0)
	witness.hunger = 85.0
	listener.hunger = 20.0
	contributor.add_inventory(SimulationIds.RESOURCE_FOOD, 1.0)
	_check(
		is_equal_approx(
			simulation_manager.economy.deposit_inventory(contributor, SimulationIds.RESOURCE_FOOD),
			1.0
		),
		"Runtime knowledge UI check should use a completed simulation transaction"
	)
	var world_view := main_scene.get_node("WorldViewManager")
	var contributor_visual: Node3D = world_view.active_npc_visuals[contributor.id]
	var witness_visual: Node3D = world_view.active_npc_visuals[witness.id]
	var listener_visual: Node3D = world_view.active_npc_visuals[listener.id]
	_check(
		(
			witness_visual.get_node("TrustReactionRoot").visible
			and not contributor_visual.get_node("TrustReactionRoot").visible
		),
		"A real trust consequence should blossom only above the reacting observer"
	)
	var reaction_checksum: String = simulation_manager.get_state_checksum()
	witness_visual.play_trust_gain_reaction()
	_check(
		simulation_manager.get_state_checksum() == reaction_checksum,
		"Restarting the transient trust blossom must not mutate simulation state"
	)
	var village_ui := main_scene.get_node("UI")
	village_ui.selected_npc_index = witness.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			"Memories  1 lasting · 0 recent" in inspector_label.text
			and (
				"◆ lasting · %s stocked 1 food · witnessed" % contributor.npc_name
				in inspector_label.text
			)
			and "Relationship: %s" % contributor.npc_name in inspector_label.text
			and "Because:" in inspector_label.text
			and "Own history" in inspector_label.text
		),
		"NPC history should show the lasting witnessed fact and its relationship consequence"
	)
	var guard_site := (
		main_scene.get_node("JajceWorld/WorldObjects/ActivitySites/GuardPost") as ActivitySite
	)
	witness.set_task(SimulationIds.ACTION_PATROL)
	witness.target_id = guard_site.site_id
	witness.position = guard_site.get_interaction_position()
	witness.start_working()
	listener.set_task(SimulationIds.ACTION_PATROL)
	listener.target_id = guard_site.site_id
	listener.position = witness.position + Vector3(1.0, 0.0, 0.0)
	simulation_manager.notify_npc_arrived(listener.id)
	village_ui.selected_npc_index = listener.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			"Memories  0 lasting · 1 recent" in inspector_label.text
			and (
				"• recent · %s stocked 1 food · heard %s" % [contributor.npc_name, witness.npc_name]
				in inspector_label.text
			)
		),
		"NPC history should identify who communicated a retained fact"
	)
	_check(
		not listener_visual.get_node("TrustReactionRoot").visible,
		"Learning a fact without a relationship consequence should not show a trust blossom"
	)

	var village_stats_label := (
		main_scene.get_node("UI/VillagePanel/MarginContainer/VillageStatsLabel") as Label
	)
	var pantry_state: StorageStateRecord = simulation_manager.get_pantry()
	var pantry_visual := (
		main_scene.get_node("JajceWorld/WorldObjects/StorageSites/VillagePantry/PantryPresentation")
		as PantryStockVisual
	)
	_check(
		(
			pantry_visual.get_stock_level() == PantryStockVisual.StockLevel.STOCKED
			and pantry_visual.get_node("LowStock").visible
			and pantry_visual.get_node("FullStock").visible
			and not pantry_visual.get_node("EmptyStock").visible
		),
		"A stocked authoritative pantry should show its physical sacks and berry baskets"
	)
	contributor.hunger = 85.0
	var withdrawn_for_need: float = simulation_manager.economy.withdraw_to_inventory(
		contributor,
		SimulationIds.RESOURCE_FOOD,
		pantry_state.get_amount(SimulationIds.RESOURCE_FOOD)
	)
	_check(withdrawn_for_need > 0.0, "Runtime opportunity setup should empty the real pantry")
	var opportunity: OpportunityStateRecord = simulation_manager.get_active_opportunity()
	_check(opportunity != null, "Emptying the pantry should open one known shortage need")
	if pantry_visual.transition_tween != null:
		await pantry_visual.transition_tween.finished
	_check(
		(
			pantry_visual.get_stock_level() == PantryStockVisual.StockLevel.EMPTY
			and pantry_visual.get_node("EmptyStock").visible
			and not pantry_visual.get_node("LowStock").visible
			and contributor_visual.get_node("OpportunityConcernRoot").visible
			and not listener_visual.get_node("OpportunityConcernRoot").visible
		),
		"The real shortage should empty the pantry prop and concern only its interested villager"
	)
	_check(
		(
			"Village need" in village_stats_label.text
			and "◆ Restock the empty pantry" in village_stats_label.text
			and (
				"%s is worried about the shortage" % contributor.npc_name
				in village_stats_label.text
			)
			and "Food 0 / 1" in village_stats_label.text
		),
		"An open opportunity should add one compact state-derived village need"
	)
	village_ui.selected_npc_index = contributor.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			"Open village need" in inspector_label.text
			and "◆ Restock the empty pantry" in inspector_label.text
			and "Food 0 / 1" in inspector_label.text
		),
		"The interested villager should expose the open pantry need in their inspector"
	)
	village_ui.selected_npc_index = listener.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		"Open village need" not in inspector_label.text,
		"An unrelated selected villager should not inherit someone else's open need"
	)

	_check(
		(
			simulation_manager.economy.deposit_inventory(contributor, SimulationIds.RESOURCE_FOOD)
			> 0.0
		),
		"Opportunity presentation should resolve from a real pantry deposit"
	)
	_check(
		(
			pantry_visual.get_stock_level() == PantryStockVisual.StockLevel.STOCKED
			and pantry_visual.get_node("RefillResponse").visible
			and not contributor_visual.get_node("OpportunityConcernRoot").visible
		),
		"Real supply should restore visible stock, play one refill response, and clear concern"
	)
	_check(
		"Village need" not in village_stats_label.text,
		"Resolved opportunities should leave the compact village summary"
	)
	village_ui.selected_npc_index = contributor.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			"Resolved village need" in inspector_label.text
			and "◆ %s restocked the pantry" % contributor.npc_name in inspector_label.text
			and "Food target 1" in inspector_label.text
		),
		"The interested villager should retain a resolved detail naming the real actor"
	)
	village_ui.selected_npc_index = listener.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		"Resolved village need" not in inspector_label.text,
		"Resolved opportunity detail should remain scoped to its interested villager"
	)

	var player_need_withdrawal: float = simulation_manager.economy.withdraw_to_inventory(
		contributor,
		SimulationIds.RESOURCE_FOOD,
		pantry_state.get_amount(SimulationIds.RESOURCE_FOOD)
	)
	_check(player_need_withdrawal > 0.0, "Player resolution setup should reopen a real need")
	var player_opportunity: OpportunityStateRecord = simulation_manager.get_active_opportunity()
	_check(player_opportunity != null, "A later shortage should open a new opportunity record")
	var active_need_json: String = simulation_manager.serialize_state()
	var old_contributor_visual := contributor_visual
	_check(
		simulation_manager.restore_state_from_json(active_need_json),
		"The visible shortage should survive a valid schema-v9 restore"
	)
	await process_frame
	contributor = simulation_manager.npcs[contributor.id]
	witness = simulation_manager.npcs[witness.id]
	listener = simulation_manager.npcs[listener.id]
	contributor_visual = world_view.active_npc_visuals[contributor.id]
	player_opportunity = simulation_manager.get_active_opportunity()
	_check(
		(
			contributor_visual != old_contributor_visual
			and contributor_visual.get_node("OpportunityConcernRoot").visible
			and pantry_visual.get_stock_level() == PantryStockVisual.StockLevel.EMPTY
			and pantry_visual.get_node("EmptyStock").visible
			and not pantry_visual.get_node("RefillResponse").visible
		),
		"Restoration should rebuild concern and empty stock without replaying the refill response"
	)
	var player := main_scene.get_node("Player") as Node3D
	var opportunity_bush := (
		main_scene.get_node("JajceWorld/WorldObjects/ResourceNodes/BerryBush_01") as ResourceNode
	)
	var opportunity_bush_state: ResourceStateRecord = simulation_manager.get_resource_state(
		opportunity_bush.node_id
	)
	opportunity_bush_state.set_amount_remaining(1.0)
	player.global_position = opportunity_bush.interaction_point.global_position
	player.call("try_interact")
	village_ui.selected_npc_index = contributor.id
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			player_opportunity.get_status() == OpportunityStateRecord.STATUS_RESOLVED
			and "Resolved village need" in inspector_label.text
			and "◆ Player restocked the pantry" in inspector_label.text
		),
		"Player gathering should resolve the same need and be named from its real event"
	)

	var woodpile_state: StorageStateRecord = simulation_manager.get_woodpile()
	woodpile_state.withdraw(
		SimulationIds.RESOURCE_WOOD, woodpile_state.get_amount(SimulationIds.RESOURCE_WOOD)
	)
	simulation_manager.economy.sync_resource(SimulationIds.RESOURCE_WOOD)
	var woodpile_node := (
		main_scene.get_node("JajceWorld/WorldObjects/StorageSites/VillageWoodpile") as StorageNode
	)
	contributor.position = woodpile_node.get_interaction_position()
	witness.position = contributor.position
	witness.profession = SimulationIds.PROFESSION_WOODCUTTER
	contributor.set_task(SimulationIds.ACTION_STUDY, 1.0)
	contributor.target_id = SimulationIds.STORAGE_VILLAGE_WOODPILE
	contributor.travel_target_position = contributor.position
	contributor.start_working()
	simulation_manager.simulate_tick()
	village_ui.selected_npc_index = contributor.id
	village_ui.call("_refresh_npc_inspector")
	var runtime_helper: OpportunityHelperResult = simulation_manager.get_active_opportunity_helper()
	_check(
		(
			runtime_helper != null
			and runtime_helper.helper_npc_id == witness.id
			and runtime_helper.action_id == SimulationIds.ACTION_GATHER_WOOD
		),
		"Runtime helper query should derive the informed trusted woodcutter"
	)
	var runtime_helper_reason := (
		"Knows the need; trust %.2f toward %s" % [runtime_helper.trust, contributor.npc_name]
		if runtime_helper != null
		else "missing helper"
	)
	_check(
		(
			"◆ Supply wood for blocked work" in village_stats_label.text
			and "could not finish Study" in village_stats_label.text
			and "Possible helper: %s — Gather Wood" % witness.npc_name in village_stats_label.text
			and runtime_helper_reason in village_stats_label.text
			and "◆ Find wood for Study" in inspector_label.text
			and not contributor_visual.get_node("OpportunityConcernRoot").visible
		),
		"A real missing-wood fact should surface through wood-specific UI without a food cue"
	)
	witness.current_task = SimulationIds.ACTION_IDLE
	witness.task_state = SimNPC.TASK_STATE_IDLE
	witness.task_complete = true
	witness.target_id = &""
	witness.has_travel_target = false
	witness.hunger = 20.0
	witness.energy = 80.0
	witness.mourning_ticks = 0
	simulation_manager.simulate_tick()
	var runtime_decision: ActionSelectionResult = simulation_manager.get_latest_decision(witness.id)
	var helper_resource: ResourceStateRecord = simulation_manager.get_resource_state(
		witness.target_id
	)
	_check(
		(
			runtime_decision != null
			and runtime_decision.action_id == SimulationIds.ACTION_GATHER_WOOD
			and "Responding to village need" in runtime_decision.reason
			and witness.task_state == SimNPC.TASK_STATE_TRAVELING
			and helper_resource != null
			and helper_resource.get_reserved_by() == witness.id
		),
		"The runtime helper should autonomously enter normal target resolution and reservation"
	)
	contributor.add_inventory(SimulationIds.RESOURCE_WOOD, 1.0)
	_check(
		is_equal_approx(
			simulation_manager.economy.deposit_inventory(contributor, SimulationIds.RESOURCE_WOOD),
			1.0
		),
		"Runtime opportunity presentation should resolve from a real wood deposit"
	)
	village_ui.call("_refresh_npc_inspector")
	_check(
		(
			"Village need" not in village_stats_label.text
			and "◆ %s supplied the woodpile" % contributor.npc_name in inspector_label.text
		),
		"The resolved wood need should name its exact supplier and leave the active summary"
	)
	_check(
		main_scene.has_node("JajceWorld/TerrainRoot/Terrain3D"),
		"Playable runtime should instance the Jajce Terrain3D world"
	)
	var terrain: Terrain3D = main_scene.get_node("JajceWorld/TerrainRoot/Terrain3D")
	_check(
		terrain.get_camera() == main_scene.get_node("CameraRig/Camera3D"),
		"Runtime Terrain3D should bind to the gameplay camera"
	)
	var camera_rig := main_scene.get_node("CameraRig")
	_check(
		camera_rig.has_method("apply_presentation_preset"),
		"Runtime camera should expose a presentation staging preset"
	)
	var presentation_focus := Vector3(-2.0, 1.2, -0.5)
	camera_rig.apply_presentation_preset(presentation_focus, 128.0, 0.95)
	_check(
		camera_rig.global_position.distance_to(presentation_focus) > 10.0,
		"Presentation preset should pull the camera back from the village focus"
	)
	_check(terrain.collision_mode != 0, "Runtime Terrain3D collision should be enabled")
	_check(
		(
			main_scene.has_node("Player/Visual/Body")
			and main_scene.has_node("Player/Visual/Head")
			and main_scene.has_node("Player/Visual/Scarf")
		),
		"Player should use the same readable multi-part visual language as villagers"
	)
	_check(
		(
			not main_scene.has_node("Player/MeshInstance3D")
			and not main_scene.has_node("Player/FaceMarker")
		),
		"Runtime should not retain the placeholder player capsule presentation"
	)
	_check(
		not main_scene.has_node("JajceWorld/NavigationRegion3D/GreyboxGround"),
		"Runtime should not keep the temporary greybox navigation ground"
	)
	_check(
		(
			not main_scene.has_node("World")
			and not main_scene.has_node("ResourceNodes")
			and not main_scene.has_node("ActivityMarkers")
			and not main_scene.has_node("JajceWorld/LegacyActivityMarkers")
		),
		"Runtime should not retain duplicate flat-world objects"
	)
	var resource_root := main_scene.get_node("JajceWorld/WorldObjects/ResourceNodes")
	_check(
		resource_root.get_child_count() == 18, "Runtime should contain eighteen Jajce ResourceNodes"
	)
	_check(
		simulation_manager.resource_states.size() == 18,
		"Simulation authority should bind all eighteen Jajce resources"
	)
	var village_root := main_scene.get_node("JajceWorld/VillageRoot")
	var path_strips := 0
	for child in village_root.get_children():
		if child.name.begins_with("Path_"):
			path_strips += 1
	_check(
		path_strips >= 4, "Runtime should include authored path strips for first-read composition"
	)
	_check(
		main_scene.has_node("JajceWorld/FortressBlockout/Keep/RidgeBanner"),
		"Runtime should include a readable ridge landmark banner"
	)
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/StorageSites/VillagePantry/PantrySign"),
		"Pantry storage should have a readable work-site silhouette"
	)
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/ActivitySites/GuardPost/GuardPennant"),
		"Guard site should have a readable work-site silhouette"
	)
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/ActivitySites/StudyDesk/OpenBook_A"),
		"Study site should have readable study props"
	)
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/ActivitySites/RestBench/RestCanopy"),
		"Rest site should have a readable rest silhouette"
	)

	var navigation_map: RID = main_scene.get_world_3d().navigation_map
	var navigation_region := (
		main_scene.get_node("JajceWorld/NavigationRegion3D") as NavigationRegion3D
	)
	_check(
		(
			navigation_region.navigation_mesh.resource_path
			== "res://world/jajce/JajceNavigationMesh.tres"
		),
		"Runtime navigation should use the Terrain3D-derived baked mesh resource"
	)
	await _wait_for_navigation_map(navigation_map)
	NavigationServer3D.map_force_update(navigation_map)

	var fixed_origins := [Vector3(-6.0, 0.0, -4.0), Vector3(0.0, 0.0, 0.0), Vector3(6.0, 0.0, 4.0)]
	var destinations: Array[Vector3] = []
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/StorageSites/VillagePantry"),
		"Runtime should expose a typed VillagePantry StorageNode"
	)
	_check(
		not main_scene.has_node("JajceWorld/LegacyActivityMarkers/PantryMarker"),
		"Runtime should not keep the pantry as a legacy activity marker"
	)
	var pantry := (
		main_scene.get_node("JajceWorld/WorldObjects/StorageSites/VillagePantry") as StorageNode
	)
	destinations.append(pantry.get_interaction_position())
	_check(
		main_scene.has_node("JajceWorld/WorldObjects/StorageSites/VillageWoodpile"),
		"Runtime should expose a typed VillageWoodpile StorageNode"
	)
	var woodpile := (
		main_scene.get_node("JajceWorld/WorldObjects/StorageSites/VillageWoodpile") as StorageNode
	)
	destinations.append(woodpile.get_interaction_position())
	var activity_root := main_scene.get_node("JajceWorld/WorldObjects/ActivitySites")
	_check(activity_root.get_child_count() == 3, "Runtime should expose three typed activity sites")
	for site in activity_root.get_children():
		destinations.append((site as ActivitySite).get_interaction_position())

	for resource in resource_root.get_children():
		destinations.append((resource as ResourceNode).interaction_point.global_position)

	for origin in fixed_origins:
		for destination in destinations:
			var path := NavigationServer3D.map_get_path(navigation_map, origin, destination, true)
			_check(
				not path.is_empty(),
				"Navigation path should exist from %s to %s" % [origin, destination]
			)
			_check_path_tracks_terrain(
				terrain, path, "Runtime navigation path should track Terrain3D height"
			)
			_check_path_reaches_destination(
				path, destination, "Runtime navigation path should reach its requested target"
			)

	var village := SimVillage.new()
	var worker := SimNPC.new(100, "BaselineWorker", SimulationIds.PROFESSION_SCHOLAR, 5.0, 5.0)
	worker.set_task(SimulationIds.ACTION_STUDY, 2.0)
	worker.start_working()
	var executor := ActionExecutionSystem.new()
	executor.advance_npc(worker, village)
	executor.advance_npc(worker, village)
	_check(worker.task_complete, "A two-tick working task should complete")

	var starving := SimNPC.new(101, "BaselineStarving", SimulationIds.PROFESSION_WANDERER, 5.0, 5.0)
	starving.hunger = 100.0
	starving.starvation_death_threshold = 1
	executor.advance_npc(starving, village)
	_check(starving.is_dead, "Starvation threshold should still kill an NPC")

	var adapter := main_scene.get_node("ActiveWorldAdapter") as ActiveWorldAdapter
	var storage_target := adapter.get_activity_target(SimulationIds.ACTION_DEPOSIT_FOOD)
	_check(
		storage_target.get("target_id", "") == String(SimulationIds.STORAGE_VILLAGE_PANTRY),
		"Runtime adapter should route storage actions to village_pantry"
	)
	var wood_target := adapter.get_activity_target(SimulationIds.ACTION_DEPOSIT_WOOD)
	_check(
		wood_target.get("target_id", "") == String(SimulationIds.STORAGE_VILLAGE_WOODPILE),
		"Runtime adapter should route wood deposit to village_woodpile"
	)
	var study_target := adapter.get_activity_target(SimulationIds.ACTION_STUDY)
	_check(
		study_target.get("target_id", "") == "study_desk",
		"Runtime adapter should route study to the typed study desk"
	)

	if failures.is_empty():
		print("[TEST] Jajce runtime passed: 6 NPCs, 18 resources, typed sites")
		quit(0)
		return

	for failure in failures:
		push_error("[TEST] " + failure)
	quit(1)


func _wait_for_navigation_map(navigation_map: RID) -> void:
	for attempt in 30:
		if (
			NavigationServer3D.map_get_iteration_id(navigation_map) > 0
			and not NavigationServer3D.map_get_regions(navigation_map).is_empty()
		):
			await physics_frame
			return
		await physics_frame
	_check(false, "Navigation map did not synchronize within 30 physics frames")


func _check(condition: bool, message: String) -> void:
	if not condition:
		failures.append(message)


func _check_path_tracks_terrain(
	terrain: Terrain3D, path: PackedVector3Array, message: String
) -> void:
	if path.is_empty():
		return

	for point in path:
		var terrain_height: float = terrain.data.get_height(point)
		if is_nan(terrain_height):
			failures.append("%s: missing terrain height at %s" % [message, point])
			return
		if absf(point.y - terrain_height) > 0.85:
			failures.append(
				(
					"%s: path point %s is too far from terrain height %.2f"
					% [message, point, terrain_height]
				)
			)
			return


func _check_path_reaches_destination(
	path: PackedVector3Array, destination: Vector3, message: String
) -> void:
	if path.is_empty():
		return

	var final_point := path[path.size() - 1]
	var final_xz := Vector2(final_point.x, final_point.z)
	var destination_xz := Vector2(destination.x, destination.z)
	if final_xz.distance_to(destination_xz) > 1.5:
		failures.append(
			"%s: final path point %s is too far from %s" % [message, final_point, destination]
		)