"""
查询 meta.etl_task 表结构和现有 ODS 行，然后 INSERT ODS_STAFF_INFO。
"""
import os, sys
from pathlib import Path
from dotenv import load_dotenv

load_dotenv(Path(__file__).resolve().parents[2] / ".env")

PG_DSN = os.environ.get("PG_DSN")
if not PG_DSN:
    raise RuntimeError("PG_DSN 未设置")

import psycopg2
from psycopg2.extras import RealDictCursor

conn = psycopg2.connect(PG_DSN)
conn.autocommit = True
cur = conn.cursor(cursor_factory=RealDictCursor)

# 1) 查表结构
print("=== meta.etl_task 表结构 ===")
cur.execute("""
    SELECT column_name, data_type, column_default, is_nullable
    FROM information_schema.columns
    WHERE table_schema = 'meta' AND table_name = 'etl_task'
    ORDER BY ordinal_position
""")
for row in cur.fetchall():
    print(f"  {row['column_name']:30s} {row['data_type']:20s} default={row['column_default']}  nullable={row['is_nullable']}")

# 2) 查一条现有 ODS 行作为参考
print("\n=== 现有 ODS 行示例（LIMIT 2）===")
cur.execute("""
    SELECT * FROM meta.etl_task
    WHERE task_code LIKE 'ODS_%'
    ORDER BY task_code
    LIMIT 2
""")
for row in cur.fetchall():
    for k, v in row.items():
        print(f"  {k}: {v}")
    print("  ---")

# 3) 检查 ODS_STAFF_INFO 是否已存在
cur.execute("SELECT COUNT(*) AS cnt FROM meta.etl_task WHERE task_code = 'ODS_STAFF_INFO'")
cnt = cur.fetchone()['cnt']
print(f"\nODS_STAFF_INFO 现有行数: {cnt}")

if cnt == 0:
    # 4) INSERT — 参照现有 ODS 行的格式
    print("\n正在 INSERT ODS_STAFF_INFO ...")
    cur.execute("""
        INSERT INTO meta.etl_task (task_code, store_id, enabled, cursor_field,
                                   window_minutes_default, overlap_seconds, page_size, retry_max, params)
        SELECT 'ODS_STAFF_INFO', store_id, TRUE, cursor_field,
               window_minutes_default, overlap_seconds, page_size, retry_max, params
        FROM meta.etl_task
        WHERE task_code LIKE 'ODS_%' AND store_id = 2790685415443269 AND enabled = TRUE
        LIMIT 1
        RETURNING task_id, task_code, store_id, enabled
    """)
    inserted = cur.fetchone()
    if inserted:
        print(f"  已插入: task_id={inserted['task_id']}, task_code={inserted['task_code']}, "
              f"store_id={inserted['store_id']}, enabled={inserted['enabled']}")
    else:
        print("  INSERT 未返回行 — 可能没有匹配的参考行，需手动处理")
else:
    print("ODS_STAFF_INFO 已存在，跳过 INSERT")

# 5) 验证
cur.execute("SELECT * FROM meta.etl_task WHERE task_code = 'ODS_STAFF_INFO'")
row = cur.fetchone()
if row:
    print("\n=== 验证：ODS_STAFF_INFO 当前记录 ===")
    for k, v in row.items():
        print(f"  {k}: {v}")

cur.close()
conn.close()
print("\n完成。")