import os
import subprocess
import tempfile
from pathlib import Path
from unittest.mock import patch

from musicdl.catalogsync.catalog_export import run_catalog_export_command


def test_run_catalog_export_command_skips_when_command_missing() -> None:
    with patch.dict(os.environ, {}, clear=True):
        result = run_catalog_export_command({})

    assert result.status == "skipped"
    assert result.returncode is None
    assert result.stdout == ""
    assert result.stderr == ""


def test_run_catalog_export_command_succeeds_with_config_values() -> None:
    command = "python -c \"print('export ok')\""
    with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as tmpdir:
        workdir = str(Path(tmpdir))
        with patch.dict(
            os.environ,
            {
                "CATALOG_EXPORT_COMMAND": "python -c \"raise SystemExit(9)\"",
                "CATALOG_EXPORT_WORKDIR": "C:/ignored",
            },
            clear=False,
        ):
            with patch(
                "musicdl.catalogsync.catalog_export.subprocess.run",
                return_value=subprocess.CompletedProcess(
                    args=command,
                    returncode=0,
                    stdout="export ok\n",
                    stderr="",
                ),
            ) as mocked_run:
                result = run_catalog_export_command(
                    {
                        "CATALOG_EXPORT_COMMAND": command,
                        "CATALOG_EXPORT_WORKDIR": workdir,
                    }
                )

    mocked_run.assert_called_once_with(
        command,
        shell=True,
        cwd=workdir,
        capture_output=True,
        text=True,
        check=False,
    )
    assert result.status == "succeeded"
    assert result.returncode == 0
    assert result.stdout == "export ok\n"
    assert result.stderr == ""


def test_run_catalog_export_command_fails_with_env_values() -> None:
    command = "python -c \"import sys; sys.stderr.write('boom')\""
    with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as tmpdir:
        workdir = str(Path(tmpdir))
        with patch.dict(
            os.environ,
            {
                "CATALOG_EXPORT_COMMAND": command,
                "CATALOG_EXPORT_WORKDIR": workdir,
            },
            clear=False,
        ):
            with patch(
                "musicdl.catalogsync.catalog_export.subprocess.run",
                return_value=subprocess.CompletedProcess(
                    args=command,
                    returncode=5,
                    stdout="",
                    stderr="boom",
                ),
            ) as mocked_run:
                result = run_catalog_export_command({})

    mocked_run.assert_called_once_with(
        command,
        shell=True,
        cwd=workdir,
        capture_output=True,
        text=True,
        check=False,
    )
    assert result.status == "failed"
    assert result.returncode == 5
    assert result.stdout == ""
    assert result.stderr == "boom"


def test_run_catalog_export_command_fails_when_subprocess_raises() -> None:
    command = "python -c \"print('never runs')\""
    with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as tmpdir:
        workdir = str(Path(tmpdir))
        with patch.dict(
            os.environ,
            {
                "CATALOG_EXPORT_COMMAND": command,
                "CATALOG_EXPORT_WORKDIR": workdir,
            },
            clear=False,
        ):
            with patch(
                "musicdl.catalogsync.catalog_export.subprocess.run",
                side_effect=OSError("bad cwd"),
            ) as mocked_run:
                result = run_catalog_export_command({})

    mocked_run.assert_called_once_with(
        command,
        shell=True,
        cwd=workdir,
        capture_output=True,
        text=True,
        check=False,
    )
    assert result.status == "failed"
    assert result.command == command
    assert result.workdir == workdir
    assert result.returncode is None
    assert result.stdout == ""
    assert result.stderr == "bad cwd"