-- =========================================================
-- trading_records.sql  (PostgreSQL 17.4+)
-- =========================================================
\pset pager off
\timing on

-- 1 保证扩展存在（重复执行无害）
CREATE EXTENSION IF NOT EXISTS "moddatetime" SCHEMA public;

DO $$
BEGIN
    RAISE NOTICE '🚀============ trading_records 部署开始 ============🚀';
END $$;

-- 2 建表（幂等）
DO $$
BEGIN
    IF NOT EXISTS (
        SELECT 1
        FROM information_schema.tables
        WHERE table_schema = 'public'
          AND table_name   = 'trading_records'
    ) THEN
        CREATE TABLE trading_records (
            id            UUID DEFAULT gen_random_uuid() PRIMARY KEY,  -- id
            open_year     SMALLINT NOT NULL,                          -- 开仓时间-年
            open_month    SMALLINT NOT NULL CHECK (open_month BETWEEN 1 AND 12), -- 开仓时间-月
            open_day      SMALLINT NOT NULL CHECK (open_day BETWEEN 1 AND 31),   -- 开仓时间-日
            symbol        VARCHAR(32) NOT NULL,                       -- 品种
            contract      VARCHAR(32) NOT NULL,                       -- 合约
            direction     VARCHAR(4)  NOT NULL CHECK (direction IN ('多','空')), -- 方向
            open_price    NUMERIC(18,8) NOT NULL,                     -- 开仓价格
            open_fee      NUMERIC(18,8) NOT NULL,                     -- 开仓手续费
            close_year    SMALLINT,                                   -- 平仓时间-年
            close_month   SMALLINT CHECK (close_month BETWEEN 1 AND 12), -- 平仓时间-月
            close_day     SMALLINT CHECK (close_day BETWEEN 1 AND 31),   -- 平仓时间-日
            close_price   NUMERIC(18,8),                              -- 平仓价格
            close_fee     NUMERIC(18,8),                              -- 平仓手续费
            close_diff    NUMERIC(18,8),                              -- 平仓差价
            tick_price    NUMERIC(18,8),                              -- 跳点价格
            diff_pnl      NUMERIC(18,8),                              -- 差价盈亏
            total_fee     NUMERIC(18,8),                              -- 手续费
            close_pnl     NUMERIC(18,8),                              -- 平仓盈亏
            deleted       BOOLEAN NOT NULL DEFAULT FALSE,             -- 删除状态
            created_at    TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP, -- 记录创建时间
            updated_at    TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP  -- 记录修改时间
        );

        -- 3 触发器：自动刷新 updated_at
        CREATE TRIGGER trg_trading_records_updated_at
            BEFORE UPDATE ON trading_records
            FOR EACH ROW
            EXECUTE FUNCTION moddatetime(updated_at);

        RAISE NOTICE 'trading_records 表已创建';
    ELSE
        RAISE NOTICE 'trading_records 表已存在，跳过';
    END IF;
END $$;

-- 4 索引（幂等）
CREATE INDEX IF NOT EXISTS idx_trd_open_ym
    ON trading_records (open_year, open_month);

CREATE INDEX IF NOT EXISTS idx_trd_close_ym
    ON trading_records (close_year, close_month)
    WHERE close_year IS NOT NULL;

CREATE INDEX IF NOT EXISTS idx_trd_symbol_contract
    ON trading_records (symbol, contract);

CREATE INDEX IF NOT EXISTS idx_trd_deleted_updated
    ON trading_records (deleted, updated_at DESC);

DO $$
BEGIN
    RAISE NOTICE '全部索引已确保存在';
END $$;

DO $$
BEGIN
    RAISE NOTICE '============ trading_records 部署完成 ============';
END $$;