#!/usr/bin/env python3
"""
Works around an openapi-generator python codegen bug where generated models
that use @field_validator don't import it from pydantic. Run after regenerating
generated/immich.
"""
import re
import pathlib
import sys

MODELS_DIR = pathlib.Path(__file__).resolve().parent.parent / "generated/immich/openapi_client/models"


def main():
    fixed = 0
    for f in MODELS_DIR.glob("*.py"):
        text = f.read_text()
        if "@field_validator" not in text:
            continue
        m = re.search(r"^from pydantic import (.*)$", text, re.M)
        if not m:
            continue
        names = [n.strip() for n in m.group(1).split(",")]
        if "field_validator" in names:
            continue
        names.append("field_validator")
        new_line = "from pydantic import " + ", ".join(names)
        text = text[: m.start()] + new_line + text[m.end() :]
        f.write_text(text)
        fixed += 1
    print(f"Fixed {fixed} model file(s) missing the field_validator import")


if __name__ == "__main__":
    sys.exit(main())