from __future__ import annotations

from dataclasses import dataclass
from pathlib import Path


@dataclass
class ProjectPaths:
    """Resolved project paths for data/results/config management."""

    root: Path

    @property
    def data_dir(self) -> Path:
        return self.root / "data"

    @property
    def results_dir(self) -> Path:
        return self.root / "results"

    @property
    def configs_dir(self) -> Path:
        return self.root / "configs"

    def ensure(self) -> None:
        for path in [
            self.data_dir / "raw",
            self.data_dir / "processed",
            self.data_dir / "targets",
            self.data_dir / "ligands",
            self.data_dir / "benchmarks",
            self.results_dir / "smoke_test",
            self.results_dir / "demo_run",
        ]:
            path.mkdir(parents=True, exist_ok=True)