## VERTICAL SLICE - NOT FOR PRODUCTION
## 增益状态表 schema：逐 effect_id 行的类型化读取（垂直切片验证：完整战斗逐行归因）。
## validate() 违例加载期致命（fail-fast）；表运行期只读，调参只走 data/tables 表值。
class_name StatusEffectTable
extends Resource

@export var rows: Array[Dictionary] = []   # Array[Dictionary]

const TARGET_SIDES := ["hero", "enemy"]
const UNITS := ["percent", "flat", "ac"]   # ac——AC 阈值轴效果（ac_up），非池百分比非定点值
const STACK_POLICIES := ["stack", "refresh", "independent"]


func validate() -> Array:
	var errs: Array[Dictionary] = []
	if rows.is_empty():
		errs.append({"category": "empty_table", "message": "StatusEffectTable 为空"})
		return errs
	var seen := {}
	for row in rows:
		var eid: String = row.get("effect_id", "")
		if eid == "":
			errs.append({"category": "domain", "message": "effect_id 缺失/空"})
			continue
		if seen.has(eid):
			errs.append({"category": "dup_key", "message": "effect_id 重复: %s" % eid})
		seen[eid] = true
		if String(row.get("display_name", "")) == "":
			errs.append({"category": "domain", "message": "%s display_name 空" % eid})
		if not TARGET_SIDES.has(row.get("target_side", "")):
			errs.append({"category": "enum", "message": "%s target_side 出域" % eid})
		var unit: String = row.get("unit", "")
		if not UNITS.has(unit):
			errs.append({"category": "enum", "message": "%s unit 出域" % eid})
		if not STACK_POLICIES.has(row.get("stack_policy", "")):
			errs.append({"category": "enum", "message": "%s stack_policy 出域" % eid})
		var m: int = int(row.get("magnitude", 0))
		# 跨字段：percent ∈ [-100,100] 且 ≠0 / flat ≥ 1 / ac ∈ [-20,20] 且 ≠0（AC 阈值轴——幅度域独立，防呆上限 20）
		if unit == "percent" and (m == 0 or m < -100 or m > 100):
			errs.append({"category": "cross_field", "message": "%s percent magnitude 域错: %d" % [eid, m]})
		if unit == "flat" and m < 1:
			errs.append({"category": "cross_field", "message": "%s flat magnitude 须 ≥1: %d" % [eid, m]})
		if unit == "ac" and (m == 0 or m < -20 or m > 20):
			errs.append({"category": "cross_field", "message": "%s ac magnitude 域错（[-20,20] 且 ≠0）: %d" % [eid, m]})
		var dur: int = int(row.get("duration_settlements", 0))
		if dur < 1 or dur > 99:
			errs.append({"category": "domain", "message": "%s duration_settlements 越域 [1,99]: %d" % [eid, dur]})
		var ms: int = int(row.get("max_stack", 0))
		if ms < 1 or ms > 16:
			errs.append({"category": "domain", "message": "%s max_stack 越域 [1,16]: %d" % [eid, ms]})
	return errs


func row_by_id(effect_id: String) -> Dictionary:
	for row in rows:
		if row.get("effect_id", "") == effect_id:
			return row
	return {}