## VERTICAL SLICE - NOT FOR PRODUCTION
## 难度修饰表 schema：按 (level_index, node_depth) 精确匹配施加乘数的类型化读取（空表=零行为合法态）。
## Boss 数值走行值直填不经本表；乘数越域仅告警、使用时 clamp（组合事故不作配置事故拒载）。
class_name DifficultyTable
extends Resource

@export var rows: Array[Dictionary] = []   # Array[Dictionary]：{level_index, node_depth, hp_mult, atk_mult}

const MULT_MIN := 0.1
const MULT_MAX := 10.0


func validate() -> Array:
	var errs: Array[Dictionary] = []
	var seen := {}
	for row in rows:
		var L: int = int(row.get("level_index", 0))
		var D: int = int(row.get("node_depth", -1))
		var key := "%d_%d" % [L, D]
		if seen.has(key):
			errs.append({"category": "dup_key", "message": "DifficultyTable 键重复: %s" % key})
		seen[key] = true
		if L < 1 or D < 0:
			errs.append({"category": "domain", "message": "难度键越域 (%d,%d)" % [L, D]})
		# 乘数越域 = warning 级（使用时 clamp——组合事故非配置事故，难度曲线与Boss GDD Edge Case 预登记）
		for k in ["hp_mult", "atk_mult"]:
			var v: float = float(row.get(k, 1.0))
			if v < MULT_MIN or v > MULT_MAX:
				errs.append({"category": "mult_oor_warning", "message": "%s (%s) 越域 [0.1,10] 使用时 clamp: %f" % [key, k, v]})
	return errs