"""Tests for `output_dir` routing — the app's "Pasta do projeto" promise.

The setting is documented in the UI as "everything generated is saved in
here". It used to be applied as a sandbox anchor only, while the filename
was still derived in the INPUT's directory — so any call whose output_dir
differed from the input's folder failed its own anchor check.
"""

import pytest

from server_tools._shared import _resolve_io_paths


@pytest.fixture
def project(tmp_path):
    """An .fcpxml in one folder, with a separate chosen output folder."""
    source_dir = tmp_path / "media"
    source_dir.mkdir()
    fcpxml = source_dir / "Projeto.fcpxml"
    fcpxml.write_text("<fcpxml version='1.13'/>")
    chosen = tmp_path / "pasta do projeto"
    chosen.mkdir()
    return fcpxml, chosen


class TestOutputDirRouting:
    def test_output_lands_in_the_chosen_folder(self, project):
        fcpxml, chosen = project
        _, output_path = _resolve_io_paths({"filepath": str(fcpxml), "output_dir": str(chosen)}, "_voice_edit")
        assert output_path.startswith(str(chosen))

    def test_filename_keeps_the_suffix_convention(self, project):
        fcpxml, chosen = project
        _, output_path = _resolve_io_paths({"filepath": str(fcpxml), "output_dir": str(chosen)}, "_voice_edit")
        assert output_path.endswith("Projeto_voice_edit.fcpxml")

    def test_cross_directory_call_does_not_raise(self, project):
        """The regression: output_dir different from the input folder used to
        raise "output path escapes allowed directory" every single time."""
        fcpxml, chosen = project
        _resolve_io_paths({"filepath": str(fcpxml), "output_dir": str(chosen)}, "_dynamic_subtitles")

    def test_without_output_dir_it_still_writes_beside_the_input(self, project):
        fcpxml, _ = project
        _, output_path = _resolve_io_paths({"filepath": str(fcpxml)}, "_modified")
        assert output_path == str(fcpxml.parent / "Projeto_modified.fcpxml")

    def test_explicit_output_path_still_wins(self, project):
        fcpxml, chosen = project
        target = chosen / "nome escolhido.fcpxml"
        _, output_path = _resolve_io_paths(
            {"filepath": str(fcpxml), "output_dir": str(chosen), "output_path": str(target)}, "_voice_edit"
        )
        assert output_path == str(target)

    def test_explicit_output_path_outside_the_anchor_is_rejected(self, project, tmp_path):
        """The anchor must keep constraining explicit paths, not just names."""
        fcpxml, chosen = project
        with pytest.raises(ValueError):
            _resolve_io_paths(
                {"filepath": str(fcpxml), "output_dir": str(chosen),
                 "output_path": str(tmp_path / "fora.fcpxml")}, "_voice_edit"
            )