# VERTICAL SLICE - NOT FOR PRODUCTION
# Validation Question: 同调位增长是否由「通关次数 + Boss 击杀数」经数据驱动的里程碑谓词表实时求值，
# 试玩后调增长曲线 = 改表不动码（proposal-magic-item-attunement-2026-09-22 §2.1 用户点名要求）
# Date: 2026-10-03（迭代 11 第①批 秘宝同调实施批 T1——任务书 v1.1 §六 T1；设计权威底稿 proposal §2）
# 数据配置 AttunementGrowthTable schema（秘宝 回填 owner）。
# 单行全局常量表（slot_cap + milestones 行族——AdventureTable 单行全局先例，Rule 4 豁免）。
# 行 = Dictionary：{id: String 唯一, grant: int, requires: [{key: String, threshold: int}]}——
# requires 为 (计数键, 阈值) 对的 AND 列表，全部满足即授予 grant 槽；
# 同调位读数唯一口径 = Σ已达成 grant clamp slot_cap（slots()）。
# 承重契约（任务书 §三 7 + 底稿 §2.1）：
#   计数键封闭枚举（COUNTER_KEYS——预留可插拔位 COUNTER_KEYS_RESERVED 本期不实现、加行即扩展不破坏
#   schema）；阈值 [1,999]；Σgrant ≤ slot_cap（超出部分永不可达，禁）；数值全 provisional 归
#   难度曲线与Boss——本表只锁形态，试玩调平衡的全部动作落在表上（改阈值/换计数键/slot_cap 加行）。
# OR/复合需求出现时升级谓词形态走任务书修订（底稿 §2.1 同款约束）。
class_name AttunementGrowthTable
extends Resource

@export var slot_cap: int = 3
@export var milestones: Array = []   # Array[Dictionary] 键 id/grant/requires

# 计数键封闭枚举（底稿 §2.1——save_file 逐域记账的键词表；T2 落 boss_kill_count 记账）
const COUNTER_KEYS := ["clear_count", "boss_kill_count"]
# 预留可插拔位（本期不实现，schema 枚举不收——底稿 §2.1 明列四件）
const COUNTER_KEYS_RESERVED := ["boss_firstkill_count", "adventure_count", "no_damage_clear_count", "run_depth_best"]


func validate() -> Array:
	var errs: Array = []
	if slot_cap < 0 or slot_cap > 9:
		errs.append({"category": "domain", "message": "slot_cap 越域 [0,9]: %d" % slot_cap})
	var seen := {}
	var grant_sum := 0
	for row in milestones:
		var mid: String = String(row.get("id", ""))
		if mid == "":
			errs.append({"category": "domain", "message": "milestone id 空"})
			continue
		if seen.has(mid):
			errs.append({"category": "dup_key", "message": "milestone id 重复: %s" % mid})
			continue
		seen[mid] = true
		var grant: int = int(row.get("grant", 0))
		if grant < 1 or grant > maxi(1, slot_cap):
			errs.append({"category": "domain", "message": "%s grant 越域 [1,slot_cap=%d]: %d" % [mid, slot_cap, grant]})
		grant_sum += maxi(0, grant)
		var reqs: Array = row.get("requires", [])
		if reqs.is_empty():
			errs.append({"category": "domain", "message": "%s requires 空（无条件授予非法——里程碑必有谓词）" % mid})
		var key_seen := {}
		for req in reqs:
			var key: String = String(req.get("key", ""))
			if not COUNTER_KEYS.has(key):
				errs.append({"category": "enum", "message": "%s 计数键出域 %s: %s" % [mid, str(COUNTER_KEYS), key]})
			if key_seen.has(key):
				errs.append({"category": "dup_key", "message": "%s 计数键重复: %s" % [mid, key]})
			key_seen[key] = true
			var th: int = int(req.get("threshold", 0))
			if th < 1 or th > 999:
				errs.append({"category": "domain", "message": "%s 阈值越域 [1,999]: %d" % [mid, th]})
	if grant_sum > slot_cap:
		errs.append({"category": "cross_field", "message": "Σgrant(%d) > slot_cap(%d)——超出部分永不可达，schema 禁" % [grant_sum, slot_cap]})
	return errs


# 实时求值：Σ已达成 grant（谓词 = requires 全键达标；counters = {计数键: int}，缺键按 0 计）
func granted_slots(counters: Dictionary) -> int:
	var total := 0
	for row in milestones:
		var ok := true
		for req in row.get("requires", []):
			if int(counters.get(String(req.get("key", "")), 0)) < int(req.get("threshold", 0)):
				ok = false
				break
		if ok:
			total += maxi(0, int(row.get("grant", 0)))
	return total


# 同调位读数唯一口径：Σ达成 grant clamp slot_cap（求值服务/装配覆盖层/运行期上限共读此口径）
func slots(counters: Dictionary) -> int:
	return mini(granted_slots(counters), slot_cap)