"""Tests for loading Arbin .res files."""

# SPDX-FileCopyrightText: 2019-2020 Christopher Kerr <chris.kerr@mykolab.ch>
#
# SPDX-License-Identifier: GPL-3.0-or-later

import os
import sqlite3
import subprocess

import pytest

from galvani import res2sqlite


have_mdbtools = subprocess.call(["which", "mdb-export"], stdout=subprocess.DEVNULL) == 0


def test_res2sqlite_help():
    """Test running `res2sqlite --help`.

    This should work even when mdbtools is not installed.
    """
    help_output = subprocess.check_output(["res2sqlite", "--help"])
    assert b"Convert Arbin .res files to sqlite3 databases" in help_output


@pytest.mark.skipif(
    have_mdbtools, reason="This tests the failure when mdbtools is not installed"
)
def test_convert_Arbin_no_mdbtools(testdata_dir, tmpdir):
    """Checks that the conversion fails with an appropriate error message."""
    res_file = os.path.join(testdata_dir, "arbin1.res")
    sqlite_file = os.path.join(str(tmpdir), "arbin1.s3db")
    with pytest.raises(
        RuntimeError, match="Could not locate the `mdb-export` executable."
    ):
        res2sqlite.convert_arbin_to_sqlite(res_file, sqlite_file)


@pytest.mark.skipif(
    not have_mdbtools, reason="Reading the Arbin file requires MDBTools"
)
@pytest.mark.parametrize("basename", ["arbin1", "UM34_Test005E"])
def test_convert_Arbin_to_sqlite_function(testdata_dir, tmpdir, basename):
    """Convert an Arbin file to SQLite using the functional interface."""
    res_file = os.path.join(testdata_dir, basename + ".res")
    sqlite_file = os.path.join(str(tmpdir), basename + ".s3db")
    res2sqlite.convert_arbin_to_sqlite(res_file, sqlite_file)
    assert os.path.isfile(sqlite_file)
    with sqlite3.connect(sqlite_file) as conn:
        csr = conn.execute("SELECT * FROM Channel_Normal_Table;")
        csr.fetchone()


@pytest.mark.skipif(
    not have_mdbtools, reason="Reading the Arbin file requires MDBTools"
)
def test_convert_cmdline(testdata_dir, tmpdir):
    """Checks that the conversion fails with an appropriate error message."""
    res_file = os.path.join(testdata_dir, "arbin1.res")
    sqlite_file = os.path.join(str(tmpdir), "arbin1.s3db")
    subprocess.check_call(["res2sqlite", res_file, sqlite_file])
    assert os.path.isfile(sqlite_file)
    with sqlite3.connect(sqlite_file) as conn:
        csr = conn.execute("SELECT * FROM Channel_Normal_Table;")
        csr.fetchone()