import json
from dataclasses import dataclass
from pathlib import Path

from bedit.core.model import GraphDocument


@dataclass(frozen=True)
class LibraryDocument:
    name: str
    document: GraphDocument
    source_path: str


def bundled_library_path() -> Path:
    return Path(__file__).resolve().parents[1] / "data" / "libraries" / "default.json"


def default_library_paths() -> list[str]:
    return [str(bundled_library_path())]


def load_library_file(path: Path) -> LibraryDocument:
    with path.open(encoding="utf-8") as file:
        data = json.load(file)
    document = GraphDocument.from_dict(data)
    name = str(document.metadata.get("name") or path.stem)
    return LibraryDocument(name, document, str(path))


def library_candidates(path: Path) -> list[Path]:
    return sorted(path.glob("*.json")) if path.is_dir() else [path]