"""Loading challenge definitions and submission files."""
from __future__ import annotations

import json
from pathlib import Path


def load_challenges(challenges_dir: Path) -> dict[str, dict]:
    out = {}
    for p in sorted(Path(challenges_dir).glob("*/challenge.json")):
        with open(p) as f:
            ch = json.load(f)
        ch["_dir"] = p.parent
        out[ch["challenge_id"]] = ch
    return out


def load_submissions(solutions_dir: Path) -> list[dict]:
    """Return every submission JSON under solutions/<challenge-id>/*.json, with _path and _dir_challenge set."""
    out = []
    for p in sorted(Path(solutions_dir).glob("*/*.json")):
        with open(p) as f:
            sub = json.load(f)
        sub["_path"] = p
        sub["_dir_challenge"] = p.parent.name
        out.append(sub)
    return out