extends SceneTree

# ============================================================================
# test_runner.gd —— core 层无头单测入口（GUT 未装前的自包含方案；W3 换 GUT）
#
# 运行：godot --headless --path . -s res://tests/unit/test_runner.gd
# 退出码：0 = 全过；1 = 有失败；2 = 数据/环境错误。
# 每个用例文件 = tests/unit/cases/*.gd，契约：func run(a) -> void（a = TestAssert）。
# ============================================================================

class TestAssert extends RefCounted:
	var failures: Array[String] = []
	var checks := 0

	func check(cond: bool, msg: String) -> void:
		checks += 1
		if not cond:
			failures.append(msg)

	func eq(got: Variant, want: Variant, msg: String) -> void:
		checks += 1
		if got != want:
			failures.append("%s：got %s want %s" % [msg, str(got), str(want)])

	func near(got: float, want: float, tol: float, msg: String) -> void:
		checks += 1
		if absf(float(got) - float(want)) > tol:
			failures.append("%s：got %.6g want %.6g（tol %g）" % [msg, got, want, tol])

	func true_(cond: bool, msg: String) -> void:
		check(cond, msg)

	func false_(cond: bool, msg: String) -> void:
		check(not cond, msg)


const CASE_FILES: Array[String] = [
	"res://tests/unit/cases/test_number_format.gd",
	"res://tests/unit/cases/test_economy_formulas.gd",
	"res://tests/unit/cases/test_balance_data.gd",
	"res://tests/unit/cases/test_economy_state.gd",
	# W3 新增：相机 rig 数据行与纯数学 / 事件系统运行时 / 殿王战状态机
	"res://tests/unit/cases/test_camera_data.gd",
	"res://tests/unit/cases/test_event_director.gd",
	"res://tests/unit/cases/test_boss_battle.gd",
]


func _initialize() -> void:
	var data := BalanceData.load_from_dir("res://data/build/")
	if not data.load_errors.is_empty():
		for e in data.load_errors:
			printerr("test_runner：数据错误：%s" % e)
		quit(2)
		return
	var total_checks := 0
	var total_fail: Array[String] = []
	for path in CASE_FILES:
		var script: Variant = load(path)
		if script == null:
			printerr("test_runner：用例缺失 %s" % path)
			quit(2)
			return
		var case_obj: Variant = script.new()
		if not (case_obj is RefCounted) or not case_obj.has_method("run"):
			printerr("test_runner：用例契约不符 %s" % path)
			quit(2)
			return
		var a := TestAssert.new()
		case_obj.run(a, data)
		total_checks += a.checks
		for f in a.failures:
			total_fail.append("%s → %s" % [path.get_file(), f])
		print("test_runner：%s：%d 检查，%d 失败" % [path.get_file(), a.checks, a.failures.size()])
	if total_fail.is_empty():
		print("test_runner：PASS（%d 检查全过）" % total_checks)
		quit(0)
		return
	print("test_runner：FAIL（%d/%d）" % [total_fail.size(), total_checks])
	for f in total_fail:
		printerr("  ✗ %s" % f)
	quit(1)