extends GdUnitTestSuite

## NEO-74: `CraftClient` POST payload + success/deny parse.

const CraftClient := preload("res://scripts/craft_client.gd")

var _failed_reason: String = ""
var _failed_recipe_id: String = ""


func _capture_failed(recipe_id: String, reason: String) -> void:
	_failed_recipe_id = recipe_id
	_failed_reason = reason


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

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


static func _success_craft_json() -> String:
	return (
		'{"schemaVersion":1,"success":true,"reasonCode":null,'
		+ '"inputsConsumed":[{"itemId":"scrap_metal_bulk","quantity":5}],'
		+ '"outputsGranted":[{"itemId":"refined_plate_stock","quantity":1}],'
		+ '"xpGrantSummary":{"skillId":"refine","amount":10,"sourceKind":"craft_refine"}}'
	)


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


func test_request_craft_posts_recipe_id_and_schema_version() -> void:
	# Arrange
	var transport := MockHttpTransport.new()
	transport.body_json = _success_craft_json()
	var c := _make_client(transport)
	# Act
	var started: bool = bool(c.call("request_craft", "refine_scrap_standard", 1))
	# Assert
	assert_that(started).is_true()
	assert_that(transport.last_url).contains("/craft")
	var parsed: Variant = JSON.parse_string(transport.last_body)
	assert_that(parsed is Dictionary).is_true()
	var body: Dictionary = parsed as Dictionary
	assert_that(int(body.get("schemaVersion", -1))).is_equal(1)
	assert_that(str(body.get("recipeId", ""))).is_equal("refine_scrap_standard")
	assert_that(int(body.get("quantity", -1))).is_equal(1)


func test_success_response_emits_craft_result_received() -> void:
	# Arrange
	var transport := MockHttpTransport.new()
	transport.body_json = _success_craft_json()
	var c := _make_client(transport)
	var got: Array = []
	c.connect(
		"craft_result_received",
		func(recipe_id: String, result: Dictionary) -> void: got.append([recipe_id, result])
	)
	# Act
	c.call("request_craft", "refine_scrap_standard")
	# Assert
	assert_that(got.size()).is_equal(1)
	assert_that(str(got[0][0])).is_equal("refine_scrap_standard")
	var result: Dictionary = got[0][1]
	assert_that(bool(result.get("success", false))).is_true()
	var outputs: Variant = result.get("outputsGranted", null)
	assert_that(outputs is Array).is_true()
	assert_that((outputs as Array).size()).is_equal(1)


func test_deny_response_emits_craft_result_with_reason_code() -> void:
	# Arrange
	var transport := MockHttpTransport.new()
	transport.body_json = (
		'{"schemaVersion":1,"success":false,"reasonCode":"insufficient_materials",'
		+ '"inputsConsumed":[],"outputsGranted":[]}'
	)
	var c := _make_client(transport)
	var got: Array = []
	c.connect(
		"craft_result_received",
		func(_recipe_id: String, result: Dictionary) -> void: got.append(result)
	)
	# Act
	c.call("request_craft", "refine_scrap_standard")
	# Assert
	var result: Dictionary = got[0]
	assert_that(bool(result.get("success", true))).is_false()
	assert_that(str(result.get("reasonCode", ""))).is_equal("insufficient_materials")


func test_http_error_emits_craft_request_failed() -> void:
	# Arrange
	_failed_reason = ""
	var transport := MockHttpTransport.new()
	transport.response_code = 404
	var c := _make_client(transport)
	c.connect("craft_request_failed", Callable(self, "_capture_failed"))
	# Act
	c.call("request_craft", "refine_scrap_standard")
	# Assert
	assert_that(_failed_reason).contains("404")