extends SceneTree

## 发布产物验收探针（T-WIN-018，由 build/accept-release.sh 调用）
##
## 用法：
##   godot --headless --main-pack <包内 OpenDance.pck> \
##         --script /绝对路径/build/probe-release.gd \
##         -- --expect-version 0.2.2 --snapshot /绝对路径/contracts/VERSION
##
## 为什么需要它：`build/verify.sh` 验证的是**仓库源码**（`godot --path .`），
## 而交付给用户的是 zip 里的 `OpenDance.pck`。差别全在「导出」这一步：
## 导出预设漏了资源、pck 没重新生成、版本号没同步、契约快照没更新……
## 都只在包里才暴露。本探针**只读包内资源**（`--main-pack` + `res://`），
## 所以它给出的版本号、契约表、autoload、主场景就是用户装到机器上的那一份。
##
## 断言（任一不满足即 quit(1)）：
##   1. ProjectSettings 的 application/config/version == 期望版本
##      （界面上「关于」清单与 .pck 都源自它 —— 文档 §11.1）；
##   2. AboutScreen.app_version() == 期望版本（界面真正会显示的值）；
##   3. 主场景非空且可加载，四个 autoload 都在场景树里；
##   4. 关键资源（UI / 模型 / 场景 / 网络 / 评分）在包内都可加载；
##   5. 包内 Credits.CONTRACT_VERSIONS 与**包内** contracts/VERSION 快照逐项一致
##      —— 抓「pck 用旧契约构建、快照却拷了新的」这类漂移。

const KEY_RESOURCES := [
	"res://src/ui/credits.gd",
	"res://src/ui/about_screen.gd",
	"res://src/ui/main.gd",
	"res://src/ui/main_menu.gd",
	"res://src/ui/scene_panel.gd",
	"res://src/ui/source_panel.gd",
	"res://src/model/humanoid_map.gd",
	"res://src/model/vrm_loader.gd",
	"res://src/scene/scene_runtime.gd",
	"res://src/net/api_client.gd",
	"res://src/net/catalog_types.gd",
	"res://src/net/pose_server.gd",
	"res://src/net/keypoint_frame.gd",
	"res://src/score/dtw.gd",
	"res://src/score/scoring.gd",
]

const EXPECTED_AUTOLOADS := ["AppConfig", "CatalogStore", "PoseReceiver", "ScoreService"]

var _failed := 0


func _check(ok: bool, text: String) -> void:
	print("  %s %s" % ["✓" if ok else "✗", text])
	if not ok:
		_failed += 1


## 解析 contracts/VERSION（`key: value`，`#` 注释）
func _read_snapshot(path: String) -> Dictionary:
	var out := {}
	if path.is_empty() or not FileAccess.file_exists(path):
		return out
	var file := FileAccess.open(path, FileAccess.READ)
	if file == null:
		return out
	while not file.eof_reached():
		var line := file.get_line().strip_edges()
		if line.is_empty() or line.begins_with("#"):
			continue
		var idx := line.find(":")
		if idx > 0:
			out[line.substr(0, idx).strip_edges()] = line.substr(idx + 1).strip_edges()
	file.close()
	return out


func _initialize() -> void:
	var expect_version := ""
	var snapshot_path := ""
	var args := OS.get_cmdline_user_args()
	var i := 0
	while i < args.size():
		if args[i] == "--expect-version" and i + 1 < args.size():
			expect_version = args[i + 1]
			i += 2
		elif args[i] == "--snapshot" and i + 1 < args.size():
			snapshot_path = args[i + 1]
			i += 2
		else:
			i += 1

	print("[accept] 包内运行时探针（--main-pack OpenDance.pck）")
	var project_version := str(ProjectSettings.get_setting("application/config/version", ""))
	print("  engine=%s  project=%s  main_scene=%s" % [
		str(Engine.get_version_info().get("string", "?")),
		project_version,
		str(ProjectSettings.get_setting("application/run/main_scene", "")),
	])

	var about = load("res://src/ui/about_screen.gd")
	var about_version := str(about.app_version()) if about != null else ""
	var credits = load("res://src/ui/credits.gd")
	var contract_versions: Dictionary = credits.CONTRACT_VERSIONS if credits != null else {}

	if not expect_version.is_empty():
		_check(project_version == expect_version,
			"包内 application/config/version = %s（期望 %s）" % [project_version, expect_version])
		_check(about_version == expect_version,
			"AboutScreen.app_version() = %s（「关于」清单会显示这个值）" % about_version)
	else:
		print("  · 未指定 --expect-version，跳过版本比对（实际 %s）" % project_version)

	var main_scene := str(ProjectSettings.get_setting("application/run/main_scene", ""))
	_check(not main_scene.is_empty() and load(main_scene) != null, "主场景可加载：%s" % main_scene)

	var autoloads := []
	for child in root.get_children():
		autoloads.append(str(child.name))
	var missing := []
	for name in EXPECTED_AUTOLOADS:
		if not autoloads.has(name):
			missing.append(name)
	_check(missing.is_empty(), "autoload 齐备 %s（实际 %s）" % [str(EXPECTED_AUTOLOADS), str(autoloads)])

	var unloadable := []
	for path in KEY_RESOURCES:
		if load(path) == null:
			unloadable.append(path)
	_check(unloadable.is_empty(), "关键资源全部可加载（%d 项）%s" % [
		KEY_RESOURCES.size(), "" if unloadable.is_empty() else " 缺失：" + str(unloadable)])

	var snapshot := _read_snapshot(snapshot_path)
	if snapshot.is_empty():
		print("  · 未提供 contracts/VERSION 快照（%s），跳过契约比对" % snapshot_path)
	else:
		print("  [contracts] 包内 Credits = ", JSON.stringify(contract_versions))
		print("  [contracts] 包内快照文件   = ", JSON.stringify(snapshot))
		var mismatch := []
		for key in snapshot.keys():
			if not contract_versions.has(key):
				mismatch.append("%s 缺失" % key)
			elif str(contract_versions[key]) != str(snapshot[key]):
				mismatch.append("%s: pck=%s 快照=%s" % [key, contract_versions[key], snapshot[key]])
		for key in contract_versions.keys():
			if not snapshot.has(key):
				mismatch.append("%s 只存在于 pck" % key)
		_check(mismatch.is_empty(), "pck 内契约表与包内 contracts/VERSION 快照一致%s" % [
			"" if mismatch.is_empty() else "：" + str(mismatch)])

	if _failed > 0:
		print("[accept] ✗ 探针发现 %d 项不符" % _failed)
		quit(1)
		return
	print("[accept] ✓ 包内运行时探针全部通过")
	quit(0)