# VERTICAL SLICE - NOT FOR PRODUCTION
# Validation Question: 玩家能否无指导在一场完整战斗中经历「开战→挖掘规划→轮末结算逐行兑现→胜/负」并逐行归因（P2）
# Date: 2026-09-10
# ConfigDB autoload（数据配置）——数值表单点访问入口（Rule 2）+ 校验双通道（Rule 6）+ R1 行解析。
# 实现 GDD：design/archive/gdd-2026-09-14/d2-data-config.md（系统 ID D2·数据配置——registry 追溯锚，命名规范见 CLAUDE.md）
# 切片注：headless --script 模式下由冒烟脚本显式实例化（数据配置 AC 前言）；玩法代码禁止绕过本单点自建 load()。
class_name ConfigDb
extends Node

const SCHEMA_VERSION := 1

const TABLE_MANIFEST := {
	"action_economy": "action_economy.tres",
	"variation": "variation.tres",
	"status_effects": "status_effects.tres",
	"board_gen": "board_gen.tres",
	"enemy": "enemy.tres",
	"skill": "skills.tres",
	"hero": "hero.tres",
	"reward": "reward.tres",
	"settlement": "settlement.tres",
	"level": "level.tres",
	"difficulty": "difficulty.tres",
	"shop": "shop.tres",   # GP+商店房实施批 2026-09-21（表与 schema 落籍归并行数据面——本批只接线加载与消费）
	"meta": "meta.tres",   # 元进度实现批 2026-09-21（MetaTable 四行族——schema 与表同批落籍）
	"aux_items": "aux_items.tres",   # 迭代 7 T1 魔法道具内容批（AuxItemTable 六行——定义表 Rule 4 豁免；罗盘 retired/失义件 deferred 标记见 schema 头注）
	"adventure": "adventure.tres",   # 冒险结构实现批 2026-09-21（AdventureTable 建表——大奖励与钥石行值单点）
}

var action_economy: ActionEconomyTable
var variation: VariationTable
var status_effects: StatusEffectTable
var board_gen: BoardGenTable
var enemy: EnemyTable
var skill: SkillTable
var hero: HeroTable
var reward: RewardTable
var settlement: SettlementTable
var level: LevelTable
var difficulty: DifficultyTable
# GP+商店房实施批（2026-09-21）：ShopTable 类型化持用（schema class_name 已落籍——code-review 2026-09-29 P2-4 收口；
# 消费面一律走下方 shop_* 访问器，禁直读行集）
var shop: ShopTable = null
# 元进度实现批（2026-09-21）：MetaTable 类型化持用（schema 与表同批落籍，无 shop 先例的落籍间隙问题）
var meta: MetaTable
var aux_items: AuxItemTable   # 迭代 7 T1 类型化持用（消费面走 aux_* 访问器）
var adventure: AdventureTable

var is_ready := false
var _diagnostics: Array[Dictionary] = []     # {severity, category, message}
var _warn_dedup: Dictionary[String, bool] = {}   # R1 四元组去重注册表
var _reload_gate := false                    # 数据配置 EC8——战斗结算 唯一调用方


func push_diag(severity: String, category: String, message: String) -> void:
	_diagnostics.append({"severity": severity, "category": category, "message": message})
	if severity == "warning":
		push_warning("[ConfigDB/%s] %s" % [category, message])
	else:
		push_error("[ConfigDB/%s] %s" % [category, message])


# 运行期数据致命（2026-09-18 用户拍板：越域记 Fatal 级日志后立即退出——数据配置通道 fail-fast 纪律补齐到查询期）
func _fatal(category: String, message: String) -> void:
	push_diag("fatal", category, message)
	push_error("[ConfigDB/%s] FATAL: %s —— 数据配置致命，进程退出" % [category, message])
	var main_loop := Engine.get_main_loop()
	if main_loop is SceneTree:
		main_loop.quit(1)   # 帧末退出，退出码 1——调用方须立即 return，勿再消费返回值
	else:
		OS.crash("ConfigDB/%s fatal: %s" % [category, message])


func reset_diagnostics() -> void:
	_diagnostics.clear()
	_warn_dedup.clear()


func diagnostics() -> Array:
	return _diagnostics.duplicate()


func diagnostics_count(severity: String) -> int:
	var n := 0
	for d in _diagnostics:
		if d.severity == severity:
			n += 1
	return n


func _ready() -> void:
	load_tables("res://data/tables", false)


func load_tables(root: String, collect_only: bool) -> bool:
	is_ready = false
	_diagnostics.clear()
	_warn_dedup.clear()
	var loaded := {}
	for key in TABLE_MANIFEST.keys():
		var path := root.path_join(TABLE_MANIFEST[key])
		if not ResourceLoader.exists(path):
			push_diag("error", "missing_file", "表文件缺失: %s" % path)
			continue
		var res: Resource = load(path)
		if res == null:
			push_diag("error", "load_failed", "表加载失败: %s" % path)
			continue
		loaded[key] = res
		for e in res.validate():
			push_diag("error", e.category, "%s → %s" % [key, e.message])
	# 跨表校验（悬空引用 / 池护栏——全部加载期致命）
	_cross_validate(loaded)
	var has_errors := diagnostics_count("error") > 0
	if has_errors and not collect_only:
		# 游戏通道：致命（Rule 6）——is_ready 恒 false，调用方（主场景）中止构建
		return false
	action_economy = loaded.get("action_economy")
	variation = loaded.get("variation")
	status_effects = loaded.get("status_effects")
	board_gen = loaded.get("board_gen")
	enemy = loaded.get("enemy")
	skill = loaded.get("skill")
	hero = loaded.get("hero")
	reward = loaded.get("reward")
	settlement = loaded.get("settlement")
	level = loaded.get("level")
	difficulty = loaded.get("difficulty")
	shop = loaded.get("shop")
	meta = loaded.get("meta")
	aux_items = loaded.get("aux_items")
	adventure = loaded.get("adventure")
	is_ready = not has_errors
	return not has_errors


func _cross_validate(loaded: Dictionary) -> void:
	var st: StatusEffectTable = loaded.get("status_effects")
	var rt: RewardTable = loaded.get("reward")
	var st_tab: SettlementTable = loaded.get("settlement")
	if st == null or rt == null or st_tab == null:
		return  # 单表校验已报错，不连锁
	var effect_ids := {}
	for row in st.rows:
		effect_ids[row.get("effect_id", "")] = true
	# ① RewardTable effect_id 悬空（percent 行引用 StatusEffectTable——悬空加载致命）。
	# GP+商店房实施批（2026-09-21）例外：gp_gain/gp_loss = GP 战斗内缓冲（escrow）通道的路由键
	# （战斗结算 _apply_gp_row 兑付——不入增益状态容器），词表封闭按字面豁免悬空引用校验。
	for row in rt.rows:
		if String(row.get("cell_type", "")) == RewardTable.AUX_ITEM_TYPE:
			continue   # aux 行 effect_id=item_id——归 ①b 双表校验（reward_dangling_aux），不入增益词表面
		var eff: String = row.get("effect_id", "")
		if eff != "" and eff != "gp_gain" and eff != "gp_loss" and not effect_ids.has(eff):
			push_diag("error", "dangling_effect", "RewardTable %s 引用不存在的 effect_id: %s" % [row.get("reward_id"), eff])
	# ①b RewardTable aux 投放行双表校验（迭代 7 T1——reward_dangling_aux）：aux 行 effect_id = item_id，
	# 须命中 AuxItemTable 活行（非 retired 非 deferred——罗盘退役/失义件不投放）。retired 行被引用=退役
	# 后仍投放（连带错误），同拦。
	var aux_live := {}
	var aux_tab = loaded.get("aux_items")
	if aux_tab != null:
		for arow in aux_tab.active_rows():
			aux_live[String(arow.get("item_id", ""))] = true
		for row in rt.rows:
			if String(row.get("cell_type", "")) != RewardTable.AUX_ITEM_TYPE:
				continue
			var aux_eff: String = String(row.get("effect_id", ""))
			if aux_eff == "":   # 负占位行（雷格极性字典兜底，零兑付）——不入投放词表校验
				continue
			if not aux_live.has(aux_eff):
				push_diag("error", "reward_dangling_aux", "RewardTable %s aux 行引用无效道具 %s（retired/deferred/不存在）: %s" % [row.get("reward_id"), aux_eff, "双表校验"])
	# ①c F2 投放维度覆盖（魔法道具 GDD——五维度各 ≥1 掉落权重为正的活行）：豁免面 {plan, info, counter}
	# = 罗盘退役（plan，2026-09-29 拍板①乙）+显影件 Alpha 重定（info/counter 悬置）——豁免随 Alpha 重定批消减
	if aux_tab != null:
		var covered := {}
		for row in rt.rows:
			if String(row.get("cell_type", "")) != RewardTable.AUX_ITEM_TYPE or int(row.get("weight", 0)) <= 0:
				continue
			var arow: Dictionary = aux_tab.row_by_id(String(row.get("effect_id", "")))
			for tag in arow.get("dimension_tags", []):
				covered[String(tag)] = true
		var f2_exempt := {"plan": true, "info": true, "counter": true}   # 豁免面（随 Alpha 重定/天赋批消减）
		for d in AuxItemTable.DIMENSIONS:
			if f2_exempt.has(d):
				continue
			if not covered.has(d):
				push_diag("error", "dimension_coverage", "F2 投放维度覆盖缺 %s（豁免面外零活行投放）" % d)
	# ② SettlementTable.effect_pool_map 悬空
	for eff in st_tab.effect_pool_map.keys():
		if not effect_ids.has(eff):
			push_diag("error", "poolmap_dangling", "SettlementTable.effect_pool_map 悬空 effect_id: %s" % eff)
	# ③ source_label_map 键集封闭性（键 = 增益状态 source_class ∪ {enemy_action, hero_attack, flag_miss}——2026-09-15 格面资源批删 item 键）
	var required_sources := ["safe_cell", "flag_hit", "mine_hit", "clear_reward", "hero_attack", "enemy_action", "flag_miss"]
	for s in required_sources:
		if not st_tab.source_label_map.has(s):
			push_diag("error", "segorder_violation", "source_label_map 缺必需键: %s" % s)
	# ④ LevelTable 节点悬空引用（battle/boss 的 (L,node_depth) 须在 board_gen 与 enemy 两表有精确行——
	# 线性推进器按精确深度行跑，floor 兜底静默降难度属调参事故，加载期直接拦）
	var lv: LevelTable = loaded.get("level")
	var bg: BoardGenTable = loaded.get("board_gen")
	var en: EnemyTable = loaded.get("enemy")
	if lv != null and bg != null and en != null:
		var bg_keys := {}
		for row in bg.rows:
			bg_keys["%d_%d" % [int(row.level_index), int(row.node_depth)]] = true
		var en_keys := {}
		for row in en.rows:
			en_keys["%d_%d" % [int(row.level_index), int(row.node_depth)]] = true
		for lrow in lv.rows:
			var li: int = int(lrow.level_index)
			# 模板池感知（关卡节点图生成 v0.4——池内全模板跨表校验，不只 row.nodes）
			var node_lists: Array[Array] = []
			var tpls: Array = lrow.get("templates", [])
			if tpls.is_empty():
				node_lists.append(lrow.get("nodes", []))
			else:
				for tpl in tpls:
					node_lists.append(tpl.get("nodes", []))
			for nodes_arr in node_lists:
				for node in nodes_arr:
					var t: String = String(node.get("type", ""))
					if t != "battle" and t != "boss":
						continue
					var key := "%d_%d" % [li, int(node.get("node_depth", -1))]
					if not bg_keys.has(key):
						push_diag("error", "level_node_dangling", "level %d %s 节点 (%s) 在 board_gen 无精确行" % [li, t, key])
					if not en_keys.has(key):
						push_diag("error", "level_node_dangling", "level %d %s 节点 (%s) 在 enemy 无精确行" % [li, t, key])
	# ⑤ 技能池引用完整性（敌人技能池批——敌人表池 × 技能表；独立入口 validate_skill_pool_links 供冒烟直验）
	var skt = loaded.get("skill")
	if skt != null and en != null:
		for e in validate_skill_pool_links(skt, en, loaded.get("status_effects")):
			push_diag("error", e.category, e.message)


# 池模板 × 技能行跨表校验（加载期致命；返回错误列表——ConfigDB 诊断通道与冒烟直验共用）：
# skill_id 悬空致命 + 池构成纪律（每池恰一行普攻、增益技 ≤1、妨害技 ≤1——proposal §2.1 结构保证 +
# proposal-status-vocabulary §1.2）+ 施放类 side 守卫（增益引用 enemy 侧 / 妨害引用 hero 侧状态行）。
# status_table 显式入参：装载序上本校验先于成员赋值执行（self.status_effects 尚为 Nil）——装载通道传 loaded 表，
# 冒烟直验传 _db.status_effects；传 null 时 side 守卫跳过（其他校验不受影响）。
func validate_skill_pool_links(skill_table: SkillTable, enemy_table: EnemyTable, status_table: StatusEffectTable = null) -> Array:
	var errs: Array[Dictionary] = []
	var skill_types := {}
	for row in skill_table.rows:
		skill_types[String(row.get("skill_id", ""))] = String(row.get("type", ""))
	# 施放类 side 守卫（新效应词汇批 2026-09-19）：buff → 敌方侧状态 / debuff → 主角侧状态，防反向挂接
	for row in skill_table.rows:
		var st: String = String(row.get("type", ""))
		if st != "buff" and st != "debuff":
			continue
		var want_side: String = "enemy" if st == "buff" else "hero"
		var eff: String = String(row.get("buff_ref", ""))
		var srow: Dictionary = status_table.row_by_id(eff) if status_table != null else {}
		if not srow.is_empty() and String(srow.get("target_side", "")) != want_side:
			errs.append({"category": "cast_side", "message": "SkillTable %s（%s）引用 %s 的 target_side=%s ≠ %s（施放类 side 守卫）" % [String(row.get("skill_id", "")), st, eff, String(srow.get("target_side", "")), want_side]})
	for row in enemy_table.rows:
		var eid: String = String(row.get("enemy_id", ""))
		var basic_n := 0
		var buff_n := 0
		var debuff_n := 0
		for entry in row.get("pool", []):
			var sid: String = String(entry.get("skill_id", ""))
			if not skill_types.has(sid):
				errs.append({"category": "dangling_skill", "message": "EnemyTable %s 池引用不存在的 skill_id: %s（悬空致命）" % [eid, sid]})
				continue
			match skill_types[sid]:
				"basic":
					basic_n += 1
				"buff":
					buff_n += 1
				"debuff":
					debuff_n += 1
		if basic_n != 1:
			errs.append({"category": "pool_composition", "message": "EnemyTable %s 池普攻行数 ≠ 1 (%d)——普攻冷却恒 0 = 空池不可能的结构前提" % [eid, basic_n]})
		if buff_n > 1:
			errs.append({"category": "pool_composition", "message": "EnemyTable %s 池增益技 > 1 (%d)——每池增益 ≤1 纪律（纠偏三）" % [eid, buff_n]})
		if debuff_n > 1:
			errs.append({"category": "pool_composition", "message": "EnemyTable %s 池妨害技 > 1 (%d)——每池妨害 ≤1 纪律（新效应词汇批 2026-09-19）" % [eid, debuff_n]})
	return errs


# ---- R1 难度行解析（2026-09-18 用户拍板修订：ceil 向上取整保证偏难；域越界与内容缺口 Fatal 退出）----

func resolve_board_gen(L: int, D: int) -> Dictionary:
	return _resolve_progress(board_gen.rows, L, D, "board_gen")


func resolve_enemy_rowset(L: int, D: int) -> Dictionary:
	return _resolve_progress(enemy.rows, L, D, "enemy")


# 难度曲线与Boss DifficultyTable 消费面（敌人系统.spawn 调用）：(L,D) 精确匹配修饰乘数，越域值 clamp（GDD Edge Case——组合事故非配置事故）
func resolve_difficulty_modifiers(L: int, D: int) -> Dictionary:
	if difficulty == null:
		return {}
	for row in difficulty.rows:
		if int(row.get("level_index", 0)) == L and int(row.get("node_depth", -1)) == D:
			return {
				"hp_mult": clampf(float(row.get("hp_mult", 1.0)), 0.1, 10.0),
				"atk_mult": clampf(float(row.get("atk_mult", 1.0)), 0.1, 10.0),
			}
	return {}


func _resolve_progress(rows: Array, L: int, D: int, table_id: String) -> Dictionary:
	if L < 1 or D < 0:
		_fatal("request_oob", "%s 请求越域 (%d,%d)——进度坐标低于合法域（关卡序号≥1、节点深度≥0）" % [table_id, L, D])
		return {}
	var level_keys: Array[int] = []
	for row in rows:
		var lv := int(row.get("level_index", 0))
		if not level_keys.has(lv):
			level_keys.append(lv)
	if level_keys.is_empty():
		_fatal("structural", "%s 行集为空——锚行校验应已拦截" % table_id)
		return {}
	level_keys.sort()
	var l_star := _ceil_key(level_keys, L)
	var l_clamped := l_star < 0
	if l_clamped:
		l_star = int(level_keys[-1])   # 超出最大行 → 取最大行封顶（2026-09-18 追加拍板：可取范围内向上取整，超出用最大值）
	var depth_keys: Array[int] = []
	for row in rows:
		if int(row.get("level_index", 0)) == l_star:
			var dv := int(row.get("node_depth", 0))
			if not depth_keys.has(dv):
				depth_keys.append(dv)
	depth_keys.sort()
	var d_star := _ceil_key(depth_keys, D)
	var d_clamped := d_star < 0
	if d_clamped:
		d_star = int(depth_keys[-1])
	var missing := ""
	if l_clamped and d_clamped:
		missing = "both_clamp"
	elif l_clamped:
		missing = "level_clamp"
	elif d_clamped:
		missing = "depth_clamp"
	elif l_star != L and d_star != D:
		missing = "both_ceil"
	elif l_star != L:
		missing = "level_ceil"
	elif d_star != D:
		missing = "depth_ceil"
	if missing != "":
		var dedup_key := "%s|%s|%d|%d" % [table_id, missing, l_star, d_star]
		if not _warn_dedup.has(dedup_key):
			_warn_dedup[dedup_key] = true
			var verb := "clamp 解析（超出最大行取最大值）" if missing.contains("clamp") else "ceil 解析（向上取整保证偏难）"
			push_diag("warning", "resolve_" + missing, "%s 请求 (%d,%d) %s → (%d,%d) [%s]——2026-09-18 拍板" % [table_id, L, D, verb, l_star, d_star, missing])
	for row in rows:
		if int(row.get("level_index", 0)) == l_star and int(row.get("node_depth", 0)) == d_star:
			return row
	return {}


# 取 sorted_keys 中第一个 >= request 的键；无（请求高于最大行）返回 -1 → 调用方 Fatal
func _ceil_key(sorted_keys: Array, request: int) -> int:
	for k in sorted_keys:
		if int(k) >= request:
			return int(k)
	return -1


# ---- 地形变异 variant_pool_gate：候选池门控（∅ board_types = 通配；2026-09-19 用户裁定字段名对齐
# board_type 词表——biome_tags 系旧观念残留退役）----

func variant_pool(level_index: int, board_type: String) -> Array:
	var pool: Array[Dictionary] = []
	for row in variation.rows:
		if int(row.get("unlock_level", 999)) > level_index:
			continue
		var tags: Array = row.get("board_types", [])
		if tags.is_empty():
			pool.append(row)
			continue
		if tags.has(board_type):
			pool.append(row)
	return pool


func status_effect_row(effect_id: String) -> Dictionary:
	return status_effects.row_by_id(effect_id)


# ---- GP+商店房实施批（2026-09-21）：ShopTable 消费面（行集解析单点——runner/战斗编排禁自扫表）----
# ── 魔法道具访问器（迭代 7 T1——消费面一律走访问器，禁直读行集）──
# 活行集（非 retired 非 deferred）——投放校验/奖励节点池/呈现可用性的唯一取数口径
func aux_active_rows() -> Array:
	return aux_items.active_rows() if aux_items != null else []


func aux_item_row(item_id: String) -> Dictionary:
	return aux_items.row_by_id(item_id) if aux_items != null else {}


# 活行词表（掉落投放 effect_id 白名单）
func aux_live_ids() -> Dictionary:
	var out := {}
	for row in aux_active_rows():
		out[String(row.get("item_id", ""))] = true
	return out


# 行族四轴（数据契约，行集归 shop.tres）：gp_drops {tier, mean, roll_min, roll_max} ·
# level_gp_bonus {level_index, bonus} · products {product_id, display_name, attr, flat_value,
# base_price, price_increment} · price_level_bonus {level_index, bonus}。
# 行族经 ShopTable 同名数组属性读取（.get 容缺——表落籍前查询恒空，掉落按 0 兑付的兜底在调用方）。

func shop_gp_drop_row(tier: String) -> Dictionary:
	for row in _shop_rows("gp_drops"):
		if String(row.get("tier", "")) == tier:
			return row
	return {}


func shop_level_gp_bonus(level_index: int) -> int:
	for row in _shop_rows("level_gp_bonus"):
		if int(row.get("level_index", -1)) == level_index:
			return int(row.get("bonus", 0))
	return 0


func shop_price_level_bonus(level_index: int) -> int:
	for row in _shop_rows("price_level_bonus"):
		if int(row.get("level_index", -1)) == level_index:
			return int(row.get("bonus", 0))
	return 0


func shop_products() -> Array:
	return _shop_rows("products")


func shop_product_row(product_id: String) -> Dictionary:
	for row in _shop_rows("products"):
		if String(row.get("product_id", "")) == product_id:
			return row
	return {}


# 行族数组读取（ShopTable 属性名 = 行族名；表未落籍/属性缺失 = 空集非错误态）
func _shop_rows(family: String) -> Array:
	if shop == null:
		return []
	var arr = shop.get(family)
	return arr if arr is Array else []


# ---- 元进度实现批（2026-09-21）：MetaTable 消费面（行集解析单点——MetaProgression/呈现层禁自扫表）----
# 行族四轴（数据契约，行集归 meta.tres，数值全 provisional 归元进度设计批配读数）：
# forge_products {attr, display_name, flat_value, base_price, price_ratio_pct} ·
# boss_keystone {level_index, first_kill, repeat_kill} ·
# workshop_items {item_id, display_name, clear_threshold} ·
# conversion {attr, per_level_shift_pct}。

func meta_forge_row(attr: String) -> Dictionary:
	for row in _meta_rows("forge_products"):
		if String(row.get("attr", "")) == attr:
			return row
	return {}


func meta_boss_keystone_row(level_index: int) -> Dictionary:
	for row in _meta_rows("boss_keystone"):
		if int(row.get("level_index", -1)) == level_index:
			return row
	return {}


func meta_workshop_items() -> Array:
	return _meta_rows("workshop_items")


func meta_conversion_row(attr: String) -> Dictionary:
	for row in _meta_rows("conversion"):
		if String(row.get("attr", "")) == attr:
			return row
	return {}


# 行族数组读取（MetaTable 属性名 = 行族名；表缺失/属性缺失 = 空集非错误态）
func _meta_rows(family: String) -> Array:
	if meta == null:
		return []
	var arr = meta.get(family)
	return arr if arr is Array else []


# 技能行单点读取（敌人技能池批——单位容器执行上报 / 战斗结算兑现的消费面）
func skill_row(skill_id: String) -> Dictionary:
	return skill.row_by_id(skill_id)


# ---- 数据配置 EC8：debug 热重载门（战斗结算 唯一调用方；切片实现 = 门标志 + 拒绝语义）----

func set_reload_gate(gated: bool) -> void:
	_reload_gate = gated


func reload() -> bool:
	if _reload_gate:
		push_diag("warning", "reload_gated", "战斗中热重载被拒绝（数据配置 EC8）")
		return false
	var ok := load_tables("res://data/tables", false)
	if ok:
		push_diag("debug", "config_reloaded", "表热重载完成")
	return ok