import os
import mysql.connector
from mysql.connector import Error

# DB Configuration
# - Prefer environment variables when present.
# - Fallback to the existing defaults used in other migration scripts.
DB_CONFIG = {
    "host": os.environ.get("DB_HOST", "officialsite.kr"),
    "port": int(os.environ.get("DB_PORT", "23306")),
    "user": os.environ.get("DB_USER", "admin"),
    "password": os.environ.get("DB_PASSWORD", "dlgks~123"),
    "database": os.environ.get("DB_NAME", "app_master"),
}


MIGRATIONS = [
    "ALTER TABLE users ADD COLUMN is_del TINYINT(1) NOT NULL DEFAULT 0 COMMENT '탈퇴 여부(1=탈퇴)' AFTER device_serial",
    "ALTER TABLE users ADD INDEX idx_is_del (is_del)",
]


def run():
    conn = None
    cursor = None
    try:
        conn = mysql.connector.connect(**DB_CONFIG)
        cursor = conn.cursor()
        print("DB Connected")

        for query in MIGRATIONS:
            try:
                cursor.execute(query)
                conn.commit()
                print("OK:", query)
            except Error as e:
                # 1060: Duplicate column name, 1061: Duplicate key name
                if e.errno in (1060, 1061):
                    print("SKIP (already exists):", query)
                else:
                    raise

        print("\n=== users is_del migration completed ===")
    finally:
        if cursor is not None:
            cursor.close()
        if conn is not None and conn.is_connected():
            conn.close()
            print("DB connection closed")


if __name__ == "__main__":
    run()