"""Contract tests for candidates-payload.schema.json."""

from __future__ import annotations

import json
from pathlib import Path

import jsonschema

from src.runtime.candidate.parser import build_candidates_payload
from src.runtime.core.config import create_schema_registry, load_schema


def test_candidates_payload_against_reference_articles():
    schema = load_schema("candidates-payload.schema.json")
    registry = create_schema_registry()
    validator = jsonschema.Draft202012Validator(schema, registry=registry)

    ref_dir = Path("evals/reference_20")
    for art_file in ref_dir.glob("article_*.json"):
        article_data = json.loads(art_file.read_text(encoding="utf-8"))
        payload = build_candidates_payload(article_data)
        errors = list(validator.iter_errors(payload))
        assert len(errors) == 0, (
            f"Payload for {art_file.name} failed schema: {[e.message for e in errors]}"
        )