futu_cache/

static_data.rs

// 静态数据缓存：股票列表、经纪商、节假日、停牌

use dashmap::DashMap;
use std::collections::{BTreeSet, HashSet};
use std::sync::atomic::{AtomicU64, Ordering};
use std::sync::{Arc, Mutex, RwLock};

mod readiness;
mod security_identity;
mod sync_status;
mod types;

pub use readiness::{StaticDataReadiness, StockListSyncStatus};
use sync_status::StockListSyncCounters;
pub use types::{
    CachedPlateInfo, CachedSecurityInfo, CachedTradeDate, CryptoPairInfo, CryptoTradeConfig,
    OptionContractInfo, SecurityInfoSource,
};

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum OnDemandSecurityPublishOutcome {
    BasicPublished,
    ZeroIdRepaired,
    CompleteMktIdUpdated,
    Rejected,
}

/// 静态数据缓存
pub struct StaticDataCache {
    /// 股票静态信息: "market_code" → info.
    ///
    /// 三索引写入只能通过 `upsert_full_security_info` /
    /// `upsert_basic_security_info` / `delete_security_info`，避免 caller
    /// 绕过 `id_to_key` / `owner_to_warrants` 维护。
    securities: DashMap<String, Arc<CachedSecurityInfo>>,
    /// 精确 stock_id → info 视图。
    ///
    /// C++ `SearchSecByID` 保留 `no_search` venue 行，而 public
    /// `SearchSecByCode` 会过滤这些行。同一个 crypto code 因此可以同时拥有
    /// composite 与多个 venue 身份，不能共用 `securities` 的 code key。
    securities_by_stock_id: DashMap<u64, Arc<CachedSecurityInfo>>,
    /// stock_id → "market_code" key (反向映射，用于推送时查找)
    ///
    id_to_key: DashMap<u64, String>,
    /// stock_id → public request aliases discovered by on-demand lookup.
    ///
    /// C++ `SearchSecByCode` keeps code lookup separate from exact
    /// `SearchSecByID`: an on-demand spelling such as `.SPX` may resolve to the
    /// same exact row later published by stock-list as `SPX`. These aliases
    /// therefore follow the exact stock-id identity without replacing its
    /// canonical `id_to_key` entry or counting as another row in canonical
    /// enumeration. Ref:
    /// `NNBiz_Qot_SecList.cpp:472-529`, `SecListDBHelper.cpp:753-769`.
    security_request_aliases: DashMap<u64, HashSet<String>>,
    /// Public key -> exact positive stock ids that can answer that key.
    ///
    /// This is the in-memory equivalent of C++ SQLite `index_code`: canonical
    /// keys and request aliases share one ordered candidate set, while
    /// `no_search` remains an exact-row property filtered at lookup time.
    /// All membership changes are serialized by `zero_id_repair` together
    /// with `id_to_key` and `security_request_aliases`.
    public_stock_ids_by_key: DashMap<String, BTreeSet<u64>>,
    /// 期货主连/连续合约 push 路由别名: real/origin stock_id → main-link sec_key set.
    ///
    /// Backend 的实时 push 可能以真实月份合约 stock_id 下发，而客户端订阅的是
    /// `HSImain` / `NQmain` 这类主连 symbol。C++ 的 QotSubscribe 用 stock_id
    /// 级别的主连关系做回投；Rust 这里保留同样的数据驱动关系，来源仅限
    /// stock-list 下发的 `origin_id` / `zhuli_id` 字段，不按 code 字符串特判。
    future_main_link_aliases: DashMap<u64, HashSet<String>>,
    /// option stock_id -> contract metadata from CMD20106 `OptionResultInfo`.
    option_contracts: DashMap<u64, OptionContractInfo>,
    /// Crypto sec_key -> 货币对元数据 (`cc_origin` / `cc_destination`)。
    crypto_pairs: DashMap<String, CryptoPairInfo>,
    /// 精确 stock_id -> 货币对元数据；public `crypto_pairs` 随 canonical
    /// searchable row 投影，venue 删除不得误删 composite 元数据。
    crypto_pairs_by_stock_id: DashMap<u64, CryptoPairInfo>,
    /// `(broker_id, symbol, exchange)` -> crypto 交易配置。
    crypto_trade_configs: DashMap<String, CryptoTradeConfig>,
    /// 交易日: "market:year-month" → Vec<TradeDate>
    pub trade_dates: DashMap<String, Vec<CachedTradeDate>>,
    /// 板块: "market:plate_type" → Vec<PlateInfo>
    pub plates: DashMap<String, Vec<CachedPlateInfo>>,
    /// 窝轮正股 owner_id → 该正股对应的所有窝轮 stock_id 集合
    ///
    /// **v1.4.106 codex 1148 F6**: value 从 `Vec<u64>` 改为 `HashSet<u64>` 防
    /// 重复 (SQLite reload + stock-list re-sync 同 warrant 多次 push 不会再重复).
    /// stock-list `delete_flag` 时**反向索引清理**: 旧 owner 下移除旧 warrant
    /// (`delete_security_info` 内部维护), update 时也维护。
    owner_to_warrants: RwLock<std::collections::HashMap<u64, HashSet<u64>>>,

    /// Serializes the bounded zero-id repair transaction across all cache
    /// indices. The repair path runs only after a completed on-demand backend
    /// response; no network operation occurs while this lock is held.
    zero_id_repair: Mutex<()>,

    /// Test-only work counter for the public identity candidate planner.
    /// Counts inspected identity mappings, not planner calls, so scale tests
    /// can distinguish indexed lookup from a hidden whole-cache scan.
    #[cfg(test)]
    public_security_candidate_inspections: AtomicU64,

    /// v1.4.89 P2-A: 需要 mkt_id refresh 的 cache key 集合.
    ///
    /// Callers `get_security_info_trigger_refresh` 在返 info 前检查
    /// `info.needs_mkt_id_refresh()`, 是则 mark key 到这里. 背景 worker
    /// (gateway bridge) 定期 `drain_stale_mkt_ids()` 批量 CMD 20106 refresh.
    ///
    /// 用 DashMap<String, ()> 替代 HashSet<String> 免 lock 竞争.
    pub stale_mkt_ids: DashMap<String, ()>,

    /// v1.4.89 P2-A: mkt_id refresh 统计计数, 用于 metrics 观察.
    ///
    /// - `mkt_id_refresh_marked_total`: 累积 mark stale 次数
    /// - `mkt_id_refresh_done_total`: 累积 backend CMD 20106 成功 refresh 次数
    /// - `mkt_id_refresh_failed_total`: 累积 refresh failure 次数
    pub mkt_id_refresh_marked_total: AtomicU64,
    pub mkt_id_refresh_done_total: AtomicU64,
    pub mkt_id_refresh_failed_total: AtomicU64,

    /// Stock-list SQLite bootstrap / backend sync readiness diagnostics.
    ///
    /// C++ OpenD opens and validates its SecList DB before APIServer becomes
    /// ready; Rust also needs a concrete readiness signal so static-data
    /// comparisons do not race the background CMD6746 worker on cold start.
    stock_list_sync: StockListSyncCounters,
}

impl StaticDataCache {
    pub fn new() -> Self {
        Self {
            securities: DashMap::new(),
            securities_by_stock_id: DashMap::new(),
            id_to_key: DashMap::new(),
            security_request_aliases: DashMap::new(),
            public_stock_ids_by_key: DashMap::new(),
            future_main_link_aliases: DashMap::new(),
            option_contracts: DashMap::new(),
            crypto_pairs: DashMap::new(),
            crypto_pairs_by_stock_id: DashMap::new(),
            crypto_trade_configs: DashMap::new(),
            trade_dates: DashMap::new(),
            plates: DashMap::new(),
            owner_to_warrants: RwLock::new(std::collections::HashMap::new()),
            zero_id_repair: Mutex::new(()),
            #[cfg(test)]
            public_security_candidate_inspections: AtomicU64::new(0),
            stale_mkt_ids: DashMap::new(),
            mkt_id_refresh_marked_total: AtomicU64::new(0),
            mkt_id_refresh_done_total: AtomicU64::new(0),
            mkt_id_refresh_failed_total: AtomicU64::new(0),
            stock_list_sync: StockListSyncCounters::new(),
        }
    }

    pub fn record_stock_list_sync_started(&self) {
        self.stock_list_sync.record_started();
    }

    pub fn record_stock_list_sync_finished(
        &self,
        version: u64,
        total_stocks: u64,
        cached_count: u64,
        finished_ms: u64,
    ) {
        self.stock_list_sync
            .record_finished(version, total_stocks, cached_count, finished_ms);
    }

    pub fn record_stock_list_sync_failed(&self) {
        self.stock_list_sync.record_failed();
    }

    pub fn record_stock_list_sync_recoverable_retry(&self) {
        self.stock_list_sync.record_recoverable_retry();
    }

    pub fn stock_list_sync_status(&self) -> StockListSyncStatus {
        self.stock_list_sync.status()
    }

    pub fn security_info_count(&self) -> usize {
        let mut positive_ids = HashSet::new();
        let mut zero_id_rows = 0usize;
        for info in &self.securities {
            if info.stock_id == 0 {
                zero_id_rows += 1;
            } else {
                positive_ids.insert(info.stock_id);
            }
        }
        positive_ids.len() + zero_id_rows
    }

    /// Clear the stock-list-backed security view and all derived indexes.
    ///
    /// Ref: C++ `NNBiz_Qot_SecList.cpp:729-737` clears the security cache
    /// after a successful stock-list update. Rust uses this at the first
    /// committed page of a version-zero full refresh before publishing that
    /// page, so SQLite and the runtime view advance together.
    pub fn clear_stock_list_security_info(&self) -> usize {
        let _identity_write = match self.zero_id_repair.lock() {
            Ok(guard) => guard,
            Err(_) => return 0,
        };
        let removed = self.security_info_count();
        self.securities.clear();
        self.securities_by_stock_id.clear();
        self.id_to_key.clear();
        self.security_request_aliases.clear();
        self.public_stock_ids_by_key.clear();
        self.future_main_link_aliases.clear();
        self.option_contracts.clear();
        self.crypto_pairs.clear();
        self.crypto_pairs_by_stock_id.clear();
        self.stale_mkt_ids.clear();
        if let Ok(mut owners) = self.owner_to_warrants.write() {
            owners.clear();
        }
        removed
    }

    pub fn stock_list_readiness(&self) -> StaticDataReadiness {
        self.stock_list_sync_status()
            .readiness_for_security_count(self.security_info_count())
    }

    /// v1.4.89 P2-A: 取 cache info 同时机会性 mark stale (若 mkt_id=0).
    ///
    /// 返 Some(info) 如果 cache hit (无论是否 stale). 返 None 如果 miss.
    ///
    /// 调 `info.needs_mkt_id_refresh()` 判 stale → mark `stale_mkt_ids`,
    /// bump `mkt_id_refresh_marked_total` counter. 用 DashMap::insert 幂等
    /// (同 key 重入不 double mark 但会 bump counter — 可接受).
    ///
    /// 替代 `get_security_info` 的推荐路径; 老 method 保留作 lookup-only 接口.
    pub fn get_security_info_trigger_refresh(&self, key: &str) -> Option<CachedSecurityInfo> {
        let info = self.get_security_info(key)?;
        if info.needs_mkt_id_refresh() {
            self.mark_stale_mkt_id(key);
        }
        Some(info)
    }

    /// v1.4.89 P2-A: 显式 mark key 需要 mkt_id refresh.
    ///
    /// 幂等: 同 key 可重入. Counter `mkt_id_refresh_marked_total` 每次都 bump
    /// (用作 metrics 观察 heuristic fallback 触发频率).
    pub fn mark_stale_mkt_id(&self, key: &str) {
        self.stale_mkt_ids.insert(key.to_string(), ());
        self.mkt_id_refresh_marked_total
            .fetch_add(1, Ordering::Relaxed);
    }

    /// v1.4.89 P2-A: drain 所有 stale keys, 清空集合, 返 Vec (给 backend worker
    /// 批量 CMD 20106 refresh).
    ///
    /// 背景 worker 用法 (伪码):
    /// ```text
    /// loop {
    ///     sleep(Duration::from_secs(60)).await;
    ///     let stale = cache.drain_stale_mkt_ids();
    ///     if stale.is_empty() { continue; }
    ///     for chunk in stale.chunks(50) {
    ///         // CMD 20106 SecuritiesReq for chunk
    ///         // on success: cache.update_mkt_id(key, new_mkt_id)
    ///         //              + cache.record_mkt_id_refresh_done()
    ///         // on failure: cache.record_mkt_id_refresh_failed()
    ///     }
    /// }
    /// ```
    pub fn drain_stale_mkt_ids(&self) -> Vec<String> {
        let keys: Vec<String> = self.stale_mkt_ids.iter().map(|e| e.key().clone()).collect();
        for k in &keys {
            self.stale_mkt_ids.remove(k);
        }
        keys
    }

    /// v1.4.89 P2-A: 更新已 cache row 的 mkt_id (refresh success 时调).
    ///
    /// 只改 mkt_id 字段, 其他字段保留 (info 可能有 SQLite 里更精准的 lot_size /
    /// list_time 等). 若 key 不在 cache (已被 evict), no-op.
    pub fn update_mkt_id(&self, key: &str, new_mkt_id: u32) -> bool {
        let _identity_write = match self.zero_id_repair.lock() {
            Ok(guard) => guard,
            Err(_) => return false,
        };
        self.update_mkt_id_locked(key, new_mkt_id)
    }

    fn update_mkt_id_locked(&self, key: &str, new_mkt_id: u32) -> bool {
        let Some(public) = self
            .securities
            .get(key)
            .map(|entry| Arc::clone(entry.value()))
        else {
            return false;
        };

        if public.stock_id == 0 {
            if let Some(mut entry) = self.securities.get_mut(key) {
                Arc::make_mut(&mut entry).mkt_id = new_mkt_id;
            } else {
                return false;
            }
        } else {
            let Some(mut exact) = self.securities_by_stock_id.get_mut(&public.stock_id) else {
                return false;
            };
            Arc::make_mut(&mut exact).mkt_id = new_mkt_id;
            drop(exact);
            self.refresh_public_keys_for_stock_id_locked(public.stock_id);
        }

        self.mkt_id_refresh_done_total
            .fetch_add(1, Ordering::Relaxed);
        true
    }

    /// v1.4.89 P2-A: 记录 refresh failure (不改 cache row, 让下次 drain 重试).
    pub fn record_mkt_id_refresh_failed(&self) {
        self.mkt_id_refresh_failed_total
            .fetch_add(1, Ordering::Relaxed);
    }

    /// v1.4.89 P2-A: 当前 stale keys 数 (给 observability / debug).
    #[must_use]
    pub fn stale_mkt_ids_count(&self) -> usize {
        self.stale_mkt_ids.len()
    }

    fn add_owner_relation(&self, info: &CachedSecurityInfo) {
        if info.warrnt_stock_owner == 0 {
            return;
        }
        if let Ok(mut map) = self.owner_to_warrants.write() {
            map.entry(info.warrnt_stock_owner)
                .or_default()
                .insert(info.stock_id);
        }
    }

    fn remove_owner_relation(&self, info: &CachedSecurityInfo) {
        let owner = info.warrnt_stock_owner;
        if owner == 0 {
            return;
        }
        if info.stock_id == 0
            && self
                .securities
                .iter()
                .any(|candidate| candidate.stock_id == 0 && candidate.warrnt_stock_owner == owner)
        {
            return;
        }
        if let Ok(mut map) = self.owner_to_warrants.write()
            && let Some(set) = map.get_mut(&owner)
        {
            set.remove(&info.stock_id);
            if set.is_empty() {
                map.remove(&owner);
            }
        }
    }

    fn remove_future_main_link_aliases_if_unreferenced(
        &self,
        key: &str,
        removed: &CachedSecurityInfo,
    ) {
        for target in Self::future_main_link_target_ids(removed) {
            let still_referenced = self.id_to_key.iter().any(|mapped| {
                mapped.value() == key
                    && self
                        .securities_by_stock_id
                        .get(mapped.key())
                        .is_some_and(|info| {
                            Self::future_main_link_target_ids(&info).contains(&target)
                        })
            });
            if still_referenced {
                continue;
            }
            if let Some(mut aliases) = self.future_main_link_aliases.get_mut(&target) {
                aliases.remove(key);
                let empty = aliases.is_empty();
                drop(aliases);
                if empty {
                    self.future_main_link_aliases.remove(&target);
                }
            }
        }
    }

    fn future_main_link_target_ids(info: &CachedSecurityInfo) -> Vec<u64> {
        let mut ids = Vec::with_capacity(2);
        for target in [info.future_origin_id, info.zhuli_id] {
            if target != 0 && target != info.stock_id && !ids.contains(&target) {
                ids.push(target);
            }
        }
        ids
    }

    fn add_future_main_link_aliases(&self, key: &str, info: &CachedSecurityInfo) {
        for target in Self::future_main_link_target_ids(info) {
            self.future_main_link_aliases
                .entry(target)
                .or_default()
                .insert(key.to_string());
        }
    }

    fn remove_future_main_link_aliases(&self, key: &str, info: &CachedSecurityInfo) {
        for target in Self::future_main_link_target_ids(info) {
            if let Some(mut aliases) = self.future_main_link_aliases.get_mut(&target) {
                aliases.remove(key);
                let empty = aliases.is_empty();
                drop(aliases);
                if empty {
                    self.future_main_link_aliases.remove(&target);
                }
            }
        }
    }

    /// 查询某个 backend push stock_id 对应的主连/连续合约 sec_key 别名。
    ///
    /// 只返回 stock-list 明确下发 `origin_id` / `zhuli_id` 关系的 key；不做
    /// `HSImain` 等字符串启发式。调用方通常先按 `id_to_key` 处理真实合约，
    /// 再把这里返回的 main-link key 一并投递。
    #[must_use]
    pub fn get_future_main_link_alias_keys(&self, stock_id: u64) -> Vec<String> {
        let Some(aliases) = self.future_main_link_aliases.get(&stock_id) else {
            return Vec::new();
        };
        let mut keys: Vec<String> = aliases.iter().cloned().collect();
        keys.sort();
        keys
    }

    /// 查询 backend push stock_id 的所有 quote 投递目标。
    ///
    /// 顺序保持为：真实 stock_id 对应 key（如有）优先，然后是 stock-list
    /// `origin_id` / `zhuli_id` 下发的主连/连续合约别名 key。调用方不再直接
    /// 读取 `id_to_key` 和 `future_main_link_aliases` 两个索引，避免 alias 逻辑
    /// 分散在 push parser 里。
    #[must_use]
    pub fn quote_push_targets_for_stock_id(
        &self,
        stock_id: u64,
    ) -> Vec<(String, Arc<CachedSecurityInfo>)> {
        let mut targets = Vec::new();

        if let Some(sec_key_ref) = self.id_to_key.get(&stock_id) {
            let sec_key = sec_key_ref.clone();
            drop(sec_key_ref);
            if let Some(info) = self
                .securities_by_stock_id
                .get(&stock_id)
                .map(|entry| Arc::clone(entry.value()))
            {
                targets.push((sec_key, info));
            }
        }

        for alias_key in self.get_future_main_link_alias_keys(stock_id) {
            if targets.iter().any(|(key, _)| key == &alias_key) {
                continue;
            }
            if let Some(info) = self.get_security_info_arc(&alias_key) {
                targets.push((alias_key, info));
            }
        }

        targets
    }

    /// **v1.4.110 Phase 2 Slice 5**: broker-aware 推送投递目标查询.
    ///
    /// 对应 push parser 从 `SecurityQuote.broker_id` 重建 broker-aware
    /// `QotStockKey` 的路径 (对齐 C++ `NNBiz_Qot_PushQot.cpp:220-269`).
    ///
    /// 语义:
    /// - `broker_id = None` (C++ `m_hasBroker=false`): 只查 no-broker key,
    ///   返 `QotSecurityKey::no_broker(public_sec_key, stock_id)` 与
    ///   `quote_push_targets_for_stock_id` 等价
    /// - `broker_id = Some(N)` (C++ `m_hasBroker=true`): 沿 stock_id 反向
    ///   找到 public_sec_key, 再用 `QotSecurityKey::from_broker_id(...)`
    ///   构造 broker-aware key. 该 broker 下 cache 写入独立桶
    ///   `"market_code@b{N}"`, 不污染同 stock_id 其他 broker 的 cache.
    ///
    /// **Phase 2 默认**: backend 当前对普通股 push 仍不下发 broker_id (=None),
    /// 与升级前行为完全等价. crypto multi-broker push 会带 broker_id,
    /// Phase 3 reader caller (handler `GetBasicQot` 等) 替换走 `_broker`
    /// 版本后, broker-aware cache 才被消费.
    #[must_use]
    pub fn quote_push_targets_for_stock_key(
        &self,
        stock_id: u64,
        broker_id: Option<std::num::NonZeroU32>,
    ) -> Vec<(
        futu_core::qot_stock_key::QotSecurityKey,
        Arc<CachedSecurityInfo>,
    )> {
        // 先用 no-broker 路径查 stock_id → (public_sec_key, info) 列表
        // (id_to_key + future_main_link_aliases). broker_id 注入到返 key
        // 不改变 lookup 逻辑.
        let bare = self.quote_push_targets_for_stock_id(stock_id);
        bare.into_iter()
            .map(|(public_sec_key, info)| {
                let key = match broker_id {
                    Some(nz) => futu_core::qot_stock_key::QotSecurityKey::from_broker_id(
                        public_sec_key,
                        stock_id,
                        nz.get(),
                    ),
                    None => futu_core::qot_stock_key::QotSecurityKey::no_broker(
                        public_sec_key,
                        stock_id,
                    ),
                };
                (key, info)
            })
            .collect()
    }

    /// **deprecated**: 改用 `upsert_full_security_info` /
    /// `upsert_basic_security_info` 显式表达数据完整度。
    ///
    /// v1.4.111 codex legacy deep-dive follow-up: 保留此 public wrapper 兼容
    /// 既有 tests/bench/下游辅助代码，但不再直接写 `securities` 造成半索引行。
    /// `source.is_complete()` 走 full upsert, 否则走 basic upsert, 始终维护
    /// `id_to_key` / `owner_to_warrants` 与主表一致。
    ///
    /// Removal trigger: repo 内 tests/benches 全部迁移到显式 upsert/delete API，
    /// 且一个 minor release 内没有下游兼容反馈后删除。
    #[deprecated(
        since = "1.4.106",
        note = "use upsert_full_security_info / upsert_basic_security_info / delete_security_info"
    )]
    pub fn set_security_info(&self, key: &str, info: CachedSecurityInfo) {
        if info.source.is_complete() {
            self.upsert_full_security_info(key, info);
        } else {
            self.upsert_basic_security_info(key, info);
        }
    }

    pub fn get_security_info(&self, key: &str) -> Option<CachedSecurityInfo> {
        self.get_security_info_arc(key)
            .map(|info| info.as_ref().clone())
    }

    pub fn get_security_info_arc(&self, key: &str) -> Option<Arc<CachedSecurityInfo>> {
        self.securities.get(key).map(|v| Arc::clone(v.value()))
    }

    pub fn security_id_for_key(&self, key: &str) -> Option<u64> {
        self.get_security_info(key)
            .map(|info| info.stock_id)
            .filter(|stock_id| *stock_id > 0)
    }

    pub fn security_info_snapshot_matching(
        &self,
        mut predicate: impl FnMut(&CachedSecurityInfo) -> bool,
    ) -> Vec<CachedSecurityInfo> {
        let mut seen_positive_ids = HashSet::new();
        self.securities
            .iter()
            .filter_map(|entry| {
                let info = entry.value();
                if !predicate(info.as_ref())
                    || (info.stock_id > 0 && !seen_positive_ids.insert(info.stock_id))
                {
                    return None;
                }
                Some(info.as_ref().clone())
            })
            .collect()
    }

    pub fn security_key_by_stock_id(&self, stock_id: u64) -> Option<String> {
        self.id_to_key.get(&stock_id).map(|key| key.value().clone())
    }

    /// 通过 stock_id 查找股票信息 (使用 id_to_key 反向映射)
    pub fn get_security_info_by_stock_id(&self, stock_id: u64) -> Option<CachedSecurityInfo> {
        self.securities_by_stock_id
            .get(&stock_id)
            .map(|info| info.as_ref().clone())
    }

    pub fn get_security_info_by_stock_id_trigger_refresh(
        &self,
        stock_id: u64,
    ) -> Option<CachedSecurityInfo> {
        let info = self.get_security_info_by_stock_id(stock_id)?;
        if info.needs_mkt_id_refresh()
            && let Some(key) = self.security_key_by_stock_id(stock_id)
        {
            self.mark_stale_mkt_id(&key);
        }
        Some(info)
    }

    /// 添加窝轮→正股的映射关系
    ///
    /// **v1.4.106 codex 1148 F6**: HashSet 自动去重, 重复 add 同 (warrant, owner)
    /// 是 idempotent — SQLite reload + stock-list sync 不会重复入。
    pub fn add_warrant_owner(&self, warrant_stock_id: u64, owner_stock_id: u64) {
        if owner_stock_id == 0 {
            return;
        }
        if let Ok(mut map) = self.owner_to_warrants.write() {
            map.entry(owner_stock_id)
                .or_default()
                .insert(warrant_stock_id);
        }
    }

    /// 通过正股 ID 搜索该正股的所有窝轮
    ///
    /// **v1.4.106 codex 1148 F6**: 内部 HashSet, 返 Vec (call site backward
    /// compatible)。返序非确定 (HashSet 不保留 insertion order); call site 若
    /// 需要稳定序应自己 sort。
    ///
    /// v1.4.111 P2-1 Tier 3 audit comment: warrant lookup helper — empty Vec =
    /// "no warrants for this owner_stock_id" (legit "正股无窝轮"), 跟 C++
    /// `SearchWarrantsByOwner` empty 行为对齐. caller decide 怎么用 (display 0
    /// warrants 是合理). 非 silent-success risk (audit verified, essentials/
    /// 2026-05-27).
    #[must_use]
    pub fn search_warrants_by_owner(&self, owner_stock_id: u64) -> Vec<u64> {
        match self.owner_to_warrants.read() {
            Ok(map) => map
                .get(&owner_stock_id)
                .map(|set| set.iter().copied().collect())
                .unwrap_or_default(),
            _ => Vec::new(),
        }
    }
}

impl Default for StaticDataCache {
    fn default() -> Self {
        Self::new()
    }
}

#[cfg(test)]
mod tests;