"""Tests for configuration and canonical path boundaries."""

import os
from pathlib import Path

import atocore.config as config


def test_settings_resolve_canonical_directories(tmp_path, monkeypatch):
    monkeypatch.setenv("ATOCORE_DATA_DIR", str(tmp_path / "data"))
    monkeypatch.setenv("ATOCORE_VAULT_SOURCE_DIR", str(tmp_path / "vault-source"))
    monkeypatch.setenv("ATOCORE_DRIVE_SOURCE_DIR", str(tmp_path / "drive-source"))
    monkeypatch.setenv("ATOCORE_LOG_DIR", str(tmp_path / "logs"))
    monkeypatch.setenv("ATOCORE_BACKUP_DIR", str(tmp_path / "backups"))

    settings = config.Settings()

    assert settings.db_path == (tmp_path / "data" / "db" / "atocore.db").resolve()
    assert settings.chroma_path == (tmp_path / "data" / "chroma").resolve()
    assert settings.cache_path == (tmp_path / "data" / "cache").resolve()
    assert settings.tmp_path == (tmp_path / "data" / "tmp").resolve()
    assert settings.resolved_vault_source_dir == (tmp_path / "vault-source").resolve()
    assert settings.resolved_drive_source_dir == (tmp_path / "drive-source").resolve()
    assert settings.resolved_log_dir == (tmp_path / "logs").resolve()
    assert settings.resolved_backup_dir == (tmp_path / "backups").resolve()
    assert settings.resolved_run_dir == (tmp_path / "run").resolve()


def test_settings_keep_legacy_db_path_when_present(tmp_path, monkeypatch):
    data_dir = tmp_path / "data"
    data_dir.mkdir()
    legacy_db = data_dir / "atocore.db"
    legacy_db.write_text("", encoding="utf-8")
    monkeypatch.setenv("ATOCORE_DATA_DIR", str(data_dir))

    settings = config.Settings()

    assert settings.db_path == legacy_db.resolve()


def test_ensure_runtime_dirs_creates_machine_dirs_only(tmp_path, monkeypatch):
    monkeypatch.setenv("ATOCORE_DATA_DIR", str(tmp_path / "data"))
    monkeypatch.setenv("ATOCORE_VAULT_SOURCE_DIR", str(tmp_path / "vault-source"))
    monkeypatch.setenv("ATOCORE_DRIVE_SOURCE_DIR", str(tmp_path / "drive-source"))
    monkeypatch.setenv("ATOCORE_LOG_DIR", str(tmp_path / "logs"))
    monkeypatch.setenv("ATOCORE_BACKUP_DIR", str(tmp_path / "backups"))

    original_settings = config.settings
    try:
        config.settings = config.Settings()
        config.ensure_runtime_dirs()

        assert config.settings.db_path.parent.exists()
        assert config.settings.chroma_path.exists()
        assert config.settings.cache_path.exists()
        assert config.settings.tmp_path.exists()
        assert config.settings.resolved_log_dir.exists()
        assert config.settings.resolved_backup_dir.exists()
        assert config.settings.resolved_run_dir.exists()
        assert not config.settings.resolved_vault_source_dir.exists()
        assert not config.settings.resolved_drive_source_dir.exists()
    finally:
        config.settings = original_settings