"""Unit tests for devx.ci.publish."""

from pathlib import Path
from unittest.mock import MagicMock, patch

import click
import pytest
from click.testing import CliRunner

from devx.ci.publish import (
    _default_gitea_registry_url,
    build_package,
    generate_release_notes,
    main,
    publish_to_gitea_registry,
    publish_to_pypi,
)
from devx.gitea_cli import TeaCLIError


class TestGenerateReleaseNotes:
    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.shutil.which", return_value="/usr/local/bin/git-cliff")
    def test_generates_from_git_cliff(self, mock_which: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stdout="## v1.0.0\n- feat: x")
        result = generate_release_notes("v1.0.0")
        assert "## v1.0.0" in result
        assert "feat: x" in result

    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.shutil.which", return_value="/usr/local/bin/git-cliff")
    def test_strips_whitespace(self, mock_which: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stdout="  changelog  \n")
        result = generate_release_notes("v1.0.0")
        assert result == "changelog"

    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.shutil.which", return_value="/usr/local/bin/git-cliff")
    def test_falls_back_on_failure(self, mock_which: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=1, stdout="")
        result = generate_release_notes("v1.0.0")
        assert "Release v1.0.0" in result
        assert "CHANGELOG.md" in result

    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.shutil.which", return_value="/usr/local/bin/git-cliff")
    def test_falls_back_on_empty_output(self, mock_which: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stdout="   ")
        result = generate_release_notes("v1.0.0")
        assert "Release v1.0.0" in result

    @patch("devx.ci.publish.subprocess.run", side_effect=FileNotFoundError)
    @patch("devx.ci.publish.shutil.which", return_value="/usr/local/bin/git-cliff")
    def test_falls_back_on_file_not_found(self, mock_which: MagicMock, mock_run: MagicMock) -> None:
        result = generate_release_notes("v1.0.0")
        assert "Release v1.0.0" in result
        assert "CHANGELOG.md" in result

    @patch("devx.ci.publish.shutil.which", return_value=None)
    def test_falls_back_when_not_installed(self, mock_which: MagicMock) -> None:
        result = generate_release_notes("v1.0.0")
        assert "Release v1.0.0" in result
        assert "CHANGELOG.md" in result


class TestBuildPackage:
    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.Path.exists", return_value=False)
    def test_success(self, mock_exists: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stderr="")
        build_package()
        args, _ = mock_run.call_args
        assert args[0][1] == "-m"
        assert args[0][2] == "build"

    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.Path.exists", return_value=False)
    def test_failure_raises(self, mock_exists: MagicMock, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=1, stderr="build error")
        with pytest.raises(click.ClickException) as exc:
            build_package()
        assert "build" in str(exc.value)

    @patch("devx.ci.publish.subprocess.run")
    @patch("devx.ci.publish.shutil.rmtree")
    @patch("devx.ci.publish.Path.exists", return_value=True)
    def test_cleans_dist_before_build(
        self, mock_exists: MagicMock, mock_rmtree: MagicMock, mock_run: MagicMock
    ) -> None:
        mock_run.return_value = MagicMock(returncode=0, stderr="")
        build_package()
        mock_rmtree.assert_called_once_with(Path("dist"))


class TestPublishToPypi:
    @patch("devx.ci.publish.subprocess.run")
    def test_success(self, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stderr="")
        publish_to_pypi("pypi-tok")
        args, _ = mock_run.call_args
        assert "twine" in args[0]
        assert "pypi-tok" in args[0]

    @patch("devx.ci.publish.subprocess.run")
    def test_failure_raises(self, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=1, stderr="upload failed")
        with pytest.raises(click.ClickException) as exc:
            publish_to_pypi("pypi-tok")
        assert "PyPI" in str(exc.value)


class TestPublishToGiteaRegistry:
    @patch("devx.ci.publish.subprocess.run")
    def test_success(self, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=0, stderr="")
        publish_to_gitea_registry("https://git.example.com/api/packages/owner/pypi", "gitea-tok")
        args, _ = mock_run.call_args
        assert "twine" in args[0]
        assert "--repository-url" in args[0]
        assert "https://git.example.com/api/packages/owner/pypi" in args[0]
        assert "gitea-tok" in args[0]

    @patch("devx.ci.publish.subprocess.run")
    def test_failure_raises(self, mock_run: MagicMock) -> None:
        mock_run.return_value = MagicMock(returncode=1, stderr="registry upload failed")
        with pytest.raises(click.ClickException) as exc:
            publish_to_gitea_registry("https://git.example.com/api/packages/owner/pypi", "gitea-tok")
        assert "Gitea PyPI registry" in str(exc.value)


class TestDefaultGiteaRegistryUrl:
    @patch.dict("os.environ", {"DEVX_REPO_OWNER": "myorg"}, clear=True)
    @patch("devx.ci.publish.GITEA_API_URL", "https://git.example.com/api/v1")
    def test_derives_from_api_url(self) -> None:
        url = _default_gitea_registry_url()
        assert url == "https://git.example.com/api/packages/myorg/pypi"

    @patch.dict("os.environ", {"DEVX_REPO_OWNER": "myorg"}, clear=True)
    @patch("devx.ci.publish.GITEA_API_URL", "https://git.example.com/api")
    def test_derives_from_api_url_no_v1(self) -> None:
        url = _default_gitea_registry_url()
        assert url == "https://git.example.com/api/packages/myorg/pypi"

    @patch.dict("os.environ", {}, clear=True)
    @patch("devx.ci.publish.GITEA_API_URL", "https://git.example.com/api/v1")
    def test_default_owner(self) -> None:
        url = _default_gitea_registry_url()
        assert "oblachno-oss" in url


class TestMain:
    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok", "PYPI_TOKEN": "pypi-tok"})
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_pypi")
    @patch("devx.ci.publish.build_package")
    def test_full_flow_with_pypi(
        self,
        mock_build: MagicMock,
        mock_publish: MagicMock,
        mock_tea_cls: MagicMock,
        mock_notes: MagicMock,
    ) -> None:
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 0
        assert "Gitea release v1.0.0 created" in result.output
        mock_build.assert_called_once()
        mock_publish.assert_called_once_with("pypi-tok")
        mock_tea.create_release.assert_called_once_with(
            "owner/repo", tag="v1.0.0", title="v1.0.0", body="Release notes"
        )

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok"}, clear=True)
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_gitea_registry")
    @patch("devx.ci.publish.build_package")
    def test_without_pypi_uses_gitea_registry(
        self,
        mock_build: MagicMock,
        mock_gitea_publish: MagicMock,
        mock_tea_cls: MagicMock,
        mock_notes: MagicMock,
    ) -> None:
        """When no PYPI_TOKEN, publishes to Gitea PyPI registry."""
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 0
        mock_build.assert_called_once()
        mock_gitea_publish.assert_called_once()
        mock_tea.create_release.assert_called_once()

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok"}, clear=True)
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_gitea_registry")
    @patch("devx.ci.publish.build_package")
    def test_with_registry_url_flag(
        self,
        mock_build: MagicMock,
        mock_gitea_publish: MagicMock,
        mock_tea_cls: MagicMock,
        mock_notes: MagicMock,
    ) -> None:
        """--registry-url flag publishes to the specified Gitea registry."""
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(
            main,
            ["v1.0.0", "owner/repo", "--registry-url", "https://custom.registry.com/pypi"],
        )
        assert result.exit_code == 0
        mock_gitea_publish.assert_called_once_with("https://custom.registry.com/pypi", "gitea-tok")

    @patch.dict(
        "os.environ",
        {"REPO_TOKEN": "gitea-tok", "DEVX_PYPI_REGISTRY_URL": "https://env.registry.com/pypi"},
        clear=True,
    )
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_gitea_registry")
    @patch("devx.ci.publish.build_package")
    def test_registry_url_from_env(
        self,
        mock_build: MagicMock,
        mock_gitea_publish: MagicMock,
        mock_tea_cls: MagicMock,
        mock_notes: MagicMock,
    ) -> None:
        """DEVX_PYPI_REGISTRY_URL env var sets the registry URL."""
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 0
        mock_gitea_publish.assert_called_once_with("https://env.registry.com/pypi", "gitea-tok")

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok"}, clear=True)
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.build_package")
    @patch("devx.ci.publish._default_gitea_registry_url", return_value="")
    def test_no_pypi_no_registry_skips_publish(
        self,
        mock_default_url: MagicMock,
        mock_build: MagicMock,
        mock_tea_cls: MagicMock,
        mock_notes: MagicMock,
    ) -> None:
        """When no PYPI_TOKEN and no registry URL, skips publish and creates release only."""
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo", "--registry-url", ""])
        assert result.exit_code == 0
        assert "PYPI_TOKEN not set" in result.output
        mock_tea.create_release.assert_called_once()

    @patch.dict("os.environ", {"REPO_TOKEN": ""}, clear=True)
    def test_missing_repo_token_exits(self) -> None:
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 1
        assert "REPO_TOKEN" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok", "PYPI_TOKEN": "pypi-tok"})
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_pypi")
    @patch("devx.ci.publish.build_package")
    def test_build_failure_raises_click(
        self, mock_build: MagicMock, mock_publish: MagicMock, mock_tea_cls: MagicMock, mock_notes: MagicMock
    ) -> None:
        mock_build.side_effect = click.ClickException("build failed")
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 1
        assert "build" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok", "PYPI_TOKEN": "pypi-tok"})
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_pypi")
    @patch("devx.ci.publish.build_package")
    def test_publish_failure_raises_click(
        self, mock_build: MagicMock, mock_publish: MagicMock, mock_tea_cls: MagicMock, mock_notes: MagicMock
    ) -> None:
        mock_publish.side_effect = click.ClickException("publish failed")
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 1
        assert "publish" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok", "PYPI_TOKEN": "pypi-tok"})
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.publish_to_pypi")
    @patch("devx.ci.publish.build_package")
    def test_release_failure_raises_click(
        self, mock_build: MagicMock, mock_publish: MagicMock, mock_tea_cls: MagicMock, mock_notes: MagicMock
    ) -> None:
        mock_tea = MagicMock()
        mock_tea.create_release.side_effect = TeaCLIError("server error")
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo"])
        assert result.exit_code == 1
        assert "Release creation failed" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "gitea-tok"})
    @patch("devx.ci.publish.generate_release_notes", return_value="Release notes")
    @patch("devx.ci.publish.TeaCLI")
    @patch("devx.ci.publish.build_package")
    def test_skip_build_skips_build_and_publish(
        self, mock_build: MagicMock, mock_tea_cls: MagicMock, mock_notes: MagicMock
    ) -> None:
        """--skip-build skips build_package and PyPI publish, only creates Gitea release."""
        mock_tea = MagicMock()
        mock_tea_cls.return_value = mock_tea
        runner = CliRunner()
        result = runner.invoke(main, ["v1.0.0", "owner/repo", "--skip-build"])
        assert result.exit_code == 0
        assert "skip" in result.output.lower()
        mock_build.assert_not_called()
        mock_tea.create_release.assert_called_once()