extends GdUnitTestSuite

## NEO-142: `FactionStandingClient` GET parse + failure signals.

const FactionStandingClient := preload("res://scripts/faction_standing_client.gd")

var _standing_capture: Dictionary = {}


func _capture_standing(snapshot: Dictionary) -> void:
	_standing_capture = snapshot


class MockHttpTransport:
	extends Node
	signal request_completed(
		result: int, response_code: int, headers: PackedStringArray, body: PackedByteArray
	)
	var last_url: String = ""
	var response_code: int = 200
	var body_json: String = ""

	func request(
		url: String,
		_custom_headers: PackedStringArray = PackedStringArray(),
		_method: HTTPClient.Method = HTTPClient.METHOD_GET,
		_request_data: String = ""
	) -> Error:
		last_url = url
		request_completed.emit(
			HTTPRequest.RESULT_SUCCESS,
			response_code,
			PackedStringArray(),
			body_json.to_utf8_buffer()
		)
		return OK


class PendingSyncHttpTransport:
	extends Node
	signal request_completed(
		result: int, response_code: int, headers: PackedStringArray, body: PackedByteArray
	)
	var request_count: int = 0
	var response_code: int = 200
	var body_json: String = ""

	func request(
		_url: String,
		_custom_headers: PackedStringArray = PackedStringArray(),
		_method: HTTPClient.Method = HTTPClient.METHOD_GET,
		_request_data: String = ""
	) -> Error:
		request_count += 1
		return OK

	func complete_pending() -> void:
		request_completed.emit(
			HTTPRequest.RESULT_SUCCESS,
			response_code,
			PackedStringArray(),
			body_json.to_utf8_buffer()
		)


static func _default_standing_json() -> String:
	return (
		'{"schemaVersion":1,"playerId":"dev-local-1","factions":['
		+ '{"id":"prototype_faction_grid_operators","standing":0},'
		+ '{"id":"prototype_faction_rust_collective","standing":0}'
		+ "]}"
	)


static func _post_operator_chain_standing_json() -> String:
	return (
		'{"schemaVersion":1,"playerId":"dev-local-1","factions":['
		+ '{"id":"prototype_faction_rust_collective","standing":0},'
		+ '{"id":"prototype_faction_grid_operators","standing":15}'
		+ "]}"
	)


func _make_client(transport: Node) -> Node:
	var c: Node = FactionStandingClient.new()
	c.set("injected_http", transport)
	auto_free(transport)
	auto_free(c)
	add_child(c)
	return c


func test_parse_faction_standing_json_reads_grid_operators_row() -> void:
	# Arrange
	var json := _post_operator_chain_standing_json()
	# Act
	var snapshot: Variant = FactionStandingClient.parse_faction_standing_json(json)
	# Assert
	assert_that(snapshot is Dictionary).is_true()
	(
		assert_that(
			FactionStandingClient.standing_for(
				FactionStandingClient.GRID_OPERATORS_ID, snapshot as Dictionary
			)
		)
		. is_equal(15)
	)


func test_parse_faction_standing_json_rejects_bad_schema() -> void:
	# Arrange
	var json := '{"schemaVersion":2,"playerId":"dev-local-1","factions":[]}'
	# Act
	var snapshot: Variant = FactionStandingClient.parse_faction_standing_json(json)
	# Assert
	assert_that(snapshot).is_null()


func test_standing_for_defaults_to_zero_when_row_missing() -> void:
	# Arrange
	var snapshot := {"schemaVersion": 1, "playerId": "dev-local-1", "factions": []}
	# Act
	var standing: int = FactionStandingClient.standing_for(
		FactionStandingClient.GRID_OPERATORS_ID, snapshot
	)
	# Assert
	assert_that(standing).is_equal(0)


func test_display_name_for_prototype_factions() -> void:
	# Arrange
	# Act
	var grid_label := FactionStandingClient.display_name_for(
		FactionStandingClient.GRID_OPERATORS_ID
	)
	var rust_label := FactionStandingClient.display_name_for(
		FactionStandingClient.RUST_COLLECTIVE_ID
	)
	# Assert
	assert_str(grid_label).is_equal("Grid Operators")
	assert_str(rust_label).is_equal("Rust Collective")


func test_request_sync_emits_faction_standing_received() -> void:
	# Arrange
	_standing_capture = {}
	var transport := MockHttpTransport.new()
	transport.body_json = _default_standing_json()
	var c := _make_client(transport)
	c.connect("faction_standing_received", Callable(self, "_capture_standing"))
	monitor_signals(c)
	# Act
	c.call("request_sync_from_server")
	# Assert
	assert_signal(c).is_emitted("faction_standing_received", any())
	assert_that(_standing_capture.has("factions")).is_true()
	assert_that(transport.last_url).contains("/faction-standing")


func test_http_404_emits_faction_standing_sync_failed() -> void:
	# Arrange
	var transport := MockHttpTransport.new()
	transport.response_code = 404
	var c := _make_client(transport)
	monitor_signals(c)
	# Act
	c.call("request_sync_from_server")
	# Assert
	assert_signal(c).is_emitted("faction_standing_sync_failed", "HTTP 404 (player unknown)")


func test_request_sync_queues_while_busy_and_flushes_after_completion() -> void:
	# Arrange
	var transport := PendingSyncHttpTransport.new()
	transport.body_json = _default_standing_json()
	var c := _make_client(transport)
	# Act
	c.call("request_sync_from_server")
	c.call("request_sync_from_server")
	# Assert
	assert_that(transport.request_count).is_equal(1)
	transport.complete_pending()
	assert_that(transport.request_count).is_equal(2)