from unittest.mock import MagicMock

import briefcase.platforms.linux.system
from briefcase.integrations.docker import Docker, DockerAppContext
from briefcase.integrations.subprocess import Subprocess


def test_linux_no_docker(create_command, first_app_config, monkeypatch):
    """If Docker is disabled on Linux, the app_context is Subprocess."""
    create_command.tools.host_os = "Linux"
    create_command.target_image = None

    # Force a dummy vendor:codename for test purposes.
    first_app_config.target_vendor = "somevendor"
    first_app_config.target_codename = "surprising"
    first_app_config.target_vendor_base = "basevendor"

    # Mock the existence of a valid non-docker system Python
    create_command.verify_system_python = MagicMock()

    # Verify the tools
    create_command.verify_tools()
    create_command.verify_app_tools(app=first_app_config)

    # No error and Subprocess is used.
    assert isinstance(create_command.tools[first_app_config].app_context, Subprocess)
    # Docker is not verified.
    assert not hasattr(create_command.tools, "docker")
    # System python is verified
    create_command.verify_system_python.assert_called_once_with()

    # Reset the mock, then invoke verify_app_tools a second time.
    create_command.verify_system_python.reset_mock()
    create_command.verify_app_tools(app=first_app_config)

    # Python will *not* be verified a second time.
    create_command.verify_system_python.assert_not_called()


def test_linux_docker(create_command, first_app_config, tmp_path, monkeypatch):
    """If Docker is enabled on Linux, the Docker alias is set."""
    create_command.tools.host_os = "Linux"
    create_command.target_image = "somevendor:surprising"
    create_command.extra_docker_build_args = ["--option-one", "--option-two"]

    # Force a dummy vendor:codename for test purposes.
    first_app_config.target_vendor = "somevendor"
    first_app_config.target_codename = "surprising"
    first_app_config.target_vendor_base = "basevendor"
    first_app_config.python_version_tag = "3"

    # Mock Docker tool verification
    mock__version_compat = MagicMock(spec=Docker._version_compat)
    mock__user_access = MagicMock(spec=Docker._user_access)
    mock__buildx_installed = MagicMock(spec=Docker._buildx_installed)
    mock__is_user_mapping_enabled = MagicMock(spec=Docker._is_user_mapping_enabled)
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_version_compat",
        mock__version_compat,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_user_access",
        mock__user_access,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_buildx_installed",
        mock__buildx_installed,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_is_user_mapping_enabled",
        mock__is_user_mapping_enabled,
    )
    mock_docker_app_context_verify = MagicMock(spec=DockerAppContext.verify)
    monkeypatch.setattr(
        briefcase.platforms.linux.system.DockerAppContext,
        "verify",
        mock_docker_app_context_verify,
    )
    create_command.verify_docker_python = MagicMock()

    # Verify the tools
    create_command.verify_tools()
    create_command.verify_app_tools(app=first_app_config)

    # Docker and Docker app context are verified
    mock__version_compat.assert_called_with(tools=create_command.tools)
    mock__user_access.assert_called_with(tools=create_command.tools)
    mock__buildx_installed.assert_called_with(tools=create_command.tools)
    mock__is_user_mapping_enabled.assert_called_with("somevendor:surprising")
    assert isinstance(create_command.tools.docker, Docker)
    mock_docker_app_context_verify.assert_called_with(
        tools=create_command.tools,
        app=first_app_config,
        image_tag="briefcase/com.example.first-app:somevendor-surprising",
        dockerfile_path=tmp_path
        / "base_path/build/first-app/somevendor/surprising/Dockerfile",
        app_base_path=tmp_path / "base_path",
        host_bundle_path=tmp_path / "base_path/build/first-app/somevendor/surprising",
        host_data_path=tmp_path / "briefcase",
        python_version="3",
        extra_build_args=["--option-one", "--option-two"],
    )

    # Python was also verified
    create_command.verify_docker_python.assert_called_once_with(first_app_config)

    # Reset the mock, then invoke verify_app_tools a second time.
    create_command.verify_docker_python.reset_mock()
    create_command.verify_app_tools(app=first_app_config)

    # Python will *not* be verified a second time.
    create_command.verify_docker_python.assert_not_called()


def test_non_linux_docker(create_command, first_app_config, tmp_path, monkeypatch):
    """If Docker is enabled on non-Linux, the Docker alias is set."""
    create_command.tools.host_os = "Darwin"
    create_command.target_image = "somevendor:surprising"
    create_command.extra_docker_build_args = ["--option-one", "--option-two"]

    # Force a dummy vendor:codename for test purposes.
    first_app_config.target_vendor = "somevendor"
    first_app_config.target_codename = "surprising"
    first_app_config.target_vendor_base = "basevendor"
    first_app_config.python_version_tag = "3"

    # Mock Docker tool verification
    mock__version_compat = MagicMock(spec=Docker._version_compat)
    mock__user_access = MagicMock(spec=Docker._user_access)
    mock__buildx_installed = MagicMock(spec=Docker._buildx_installed)
    mock__is_user_mapping_enabled = MagicMock(spec=Docker._is_user_mapping_enabled)
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_version_compat",
        mock__version_compat,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_user_access",
        mock__user_access,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_buildx_installed",
        mock__buildx_installed,
    )
    monkeypatch.setattr(
        briefcase.platforms.linux.system.Docker,
        "_is_user_mapping_enabled",
        mock__is_user_mapping_enabled,
    )
    mock_docker_app_context_verify = MagicMock(spec=DockerAppContext.verify)
    monkeypatch.setattr(
        briefcase.platforms.linux.system.DockerAppContext,
        "verify",
        mock_docker_app_context_verify,
    )
    create_command.verify_docker_python = MagicMock()

    # Verify the tools
    create_command.verify_tools()
    create_command.verify_app_tools(app=first_app_config)

    # Docker and Docker app context are verified
    mock__version_compat.assert_called_with(tools=create_command.tools)
    mock__user_access.assert_called_with(tools=create_command.tools)
    mock__buildx_installed.assert_called_with(tools=create_command.tools)
    mock__is_user_mapping_enabled.assert_called_with("somevendor:surprising")
    assert isinstance(create_command.tools.docker, Docker)
    mock_docker_app_context_verify.assert_called_with(
        tools=create_command.tools,
        app=first_app_config,
        image_tag="briefcase/com.example.first-app:somevendor-surprising",
        dockerfile_path=tmp_path
        / "base_path/build/first-app/somevendor/surprising/Dockerfile",
        app_base_path=tmp_path / "base_path",
        host_bundle_path=tmp_path / "base_path/build/first-app/somevendor/surprising",
        host_data_path=tmp_path / "briefcase",
        python_version="3",
        extra_build_args=["--option-one", "--option-two"],
    )

    # Python was also verified
    create_command.verify_docker_python.assert_called_once_with(first_app_config)

    # Reset the mock, then invoke verify_app_tools a second time.
    create_command.verify_docker_python.reset_mock()
    create_command.verify_app_tools(app=first_app_config)

    # Python will *not* be verified a second time.
    create_command.verify_docker_python.assert_not_called()