from __future__ import annotations

import sys
from pathlib import Path

from sqlalchemy import text

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

from app.db.session import SessionLocal
from scripts.init_demo_db import init_database


def main() -> None:
    """新表迁移：创建并补齐 case_base、traditional_case、teaching_case、case_exam_item、training_* 和 training_record。"""
    init_database()
    with SessionLocal() as db:
        _apply_table_comments(db)
        db.commit()
    print("new schema migration completed")


def _apply_table_comments(db) -> None:
    """表注释补齐：为当前业务表写入中文说明，便于数据库工具查看。"""
    comments = {
        "case_base": "病例主表",
        "traditional_case": "传统病例扩展表",
        "teaching_case": "教学互动病例扩展表",
        "scoring_rule": "评分规则表",
        "case_exam_item": "病例检查检验项目表",
        "training_session": "训练会话表",
        "training_order": "训练检查申请表",
        "training_submission": "训练诊断治疗提交表",
        "training_record": "训练记录表",
        "training_score_detail": "评分明细表",
        "department": "科室表",
        "user": "用户表",
    }
    dialect = db.bind.dialect.name if db.bind else ""
    if dialect != "mysql":
        return
    for table_name, comment in comments.items():
        safe_comment = comment.replace("'", "''")
        db.execute(text(f"ALTER TABLE `{table_name}` COMMENT='{safe_comment}'"))


if __name__ == "__main__":
    main()