"""
Sync CRUD examples using SQLModel and the kit's generic Repository.

Prereq:
  - Export SQL_*/PG* env vars to point at your Postgres
  - Run this file: uv run python examples/01_sync_crud.py
"""

from typing import Optional, List
from sqlmodel import SQLModel, Field

from sqlmodel_pg_kit import create_all, Repository
from sqlmodel_pg_kit.db import get_session


class Hero(SQLModel, table=True):
    id: Optional[int] = Field(default=None, primary_key=True)
    name: str = Field(index=True)
    age: Optional[int] = None


def main():
    # Ensure tables exist
    create_all()

    repo = Repository(Hero)

    with get_session() as s:
        # Create
        h = repo.create(s, {"name": "Alice", "age": 20})
        print("Created:", h)

        # Read by id
        h2 = repo.get(s, h.id)
        print("Fetched by id:", h2)

        # Update
        h3 = repo.update(s, h.id, age=21)
        print("Updated:", h3)

        # List (pagination)
        page = repo.list(s, page=1, size=5)
        print("List page=1,size=5 ->", [x.name for x in page])

        # Delete
        ok = repo.delete(s, h.id)
        print("Deleted?", ok)


if __name__ == "__main__":
    main()