extends SceneTree

## CBT-01 技能矩阵检查：读取 test/playable/skill-cases.json（或 --matrix 指定的本地副本），
## 按职业校验并输出可直接放入场景配置的 skill_cases。只读数据，不连网络、不读凭据。
##
##   godot --headless --path project --script playable_skill_matrix.gd -- --job WARRIOR [--matrix PATH]
##
## stdout: 一行 "SKILL_MATRIX {json}"。exit 0 = READY，1 = 矩阵错误，2 = 存在未确认条目（BLOCKED）。

const Config = preload("res://testing/playable_config.gd")
const SkillTable = preload("res://ui/skill_table.gd")

func _init() -> void:
	var args := OS.get_cmdline_user_args()
	var job := ""
	var matrix_path := ProjectSettings.globalize_path("res://").path_join("../test/playable/skill-cases.json").simplify_path()
	var i := 0
	while i < args.size():
		match args[i]:
			"--job":
				i += 1
				job = String(args[i]).to_upper() if i < args.size() else ""
			"--matrix":
				i += 1
				matrix_path = args[i] if i < args.size() else ""
			"--help":
				print("usage: playable_skill_matrix.gd -- --job WARRIOR|ASSASSIN|SURA|SHAMAN [--matrix PATH]")
				quit(0)
				return
			_:
				printerr("SKILL_MATRIX: unknown argument %s" % args[i])
				quit(1)
				return
		i += 1
	var result := check(matrix_path, job)
	print("SKILL_MATRIX " + JSON.stringify(result))
	quit({"READY": 0, "BLOCKED": 2}.get(result.status, 1))

static func check(matrix_path: String, job: String) -> Dictionary:
	var out := {"status": "FAIL", "job": job, "errors": [], "blocked": [], "not_applicable": [], "skill_cases": []}
	var file := FileAccess.open(matrix_path, FileAccess.READ)
	if file == null:
		out.errors.append("skill matrix cannot be opened")
		return out
	var parsed: Variant = JSON.parse_string(file.get_as_text())
	if not (parsed is Dictionary):
		out.errors.append("skill matrix is not a JSON object")
		return out
	var table := SkillTable.new()
	var loaded := false
	for lang in ["en", "common"]:
		if table.load_file(AssetRoot.path().path_join("locale/locale/%s/skilldesc.txt" % lang)):
			loaded = true
			break
	var resolved := Config.skill_matrix_cases(parsed, job, table if loaded else null)
	out.errors = resolved.errors
	if not loaded:
		out.errors.append("skilldesc.txt is unavailable; skill ownership cannot be checked")
	out.blocked = resolved.blocked
	out.not_applicable = resolved.not_applicable
	out.skill_cases = resolved.cases
	if out.errors.is_empty():
		out.status = "BLOCKED" if not out.blocked.is_empty() else "READY"
	return out