import textwrap
import json

import pytest

from conan.test.assets.genconanfile import GenConanfile
from conan.test.utils.tools import TestClient
from conan.internal.util.files import save
import os

# Using the sbom tool with "conan create"
sbom_hook_post_package = """
import json
import os
from conan.errors import ConanException
from conan.api.output import ConanOutput
from conan.tools.sbom import {cyclone_version}

def post_package(conanfile):
    sbom_{cyclone_version} = {cyclone_version}(conanfile, add_build={add_build}, add_tests={add_tests})
    metadata_folder = conanfile.package_metadata_folder
    file_name = "sbom.cdx.json"
    with open(os.path.join(metadata_folder, file_name), 'w') as f:
        json.dump(sbom_{cyclone_version}, f, indent=4)
    ConanOutput().success(f"CYCLONEDX CREATED - {{conanfile.package_metadata_folder}}")
"""

# Using the sbom tool with "conan install"
sbom_hook_post_generate = """
import json
import os
from conan.errors import ConanException
from conan.api.output import ConanOutput
from conan.tools.sbom import {cyclone_version}

def post_generate(conanfile):
    sbom_{cyclone_version} = {cyclone_version}(conanfile, name={name})
    generators_folder = conanfile.generators_folder
    file_name = "sbom.cdx.json"
    os.mkdir(os.path.join(generators_folder, "sbom"))
    with open(os.path.join(generators_folder, "sbom", file_name), 'w') as f:
        json.dump(sbom_{cyclone_version}, f, indent=4)
    ConanOutput().success(f"CYCLONEDX CREATED - {{conanfile.generators_folder}}")
"""

@pytest.mark.parametrize("cyclone_version", ["cyclonedx_1_4", "cyclonedx_1_6"])
class TestCyclonedx:

    @pytest.fixture()
    def hook_setup_post_package_default(self, cyclone_version):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_package.format(cyclone_version=cyclone_version,
                                                      add_build=False, add_tests=False))
        return tc

    @pytest.fixture()
    def hook_setup_post_package(self, cyclone_version):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_package.format(cyclone_version=cyclone_version,
                                                      add_build=True, add_tests=True))
        return tc


    @pytest.fixture()
    def hook_setup_post_package_no_tool_requires(self, cyclone_version):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_package.format(cyclone_version=cyclone_version,
                                                      add_build=False, add_tests=True))
        return tc


    @pytest.fixture()
    def hook_setup_post_package_no_test(self, cyclone_version):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_package.format(cyclone_version=cyclone_version,
                                                      add_build=True, add_tests=False))
        return tc


    @pytest.fixture()
    def hook_setup_post_package_tl(self, cyclone_version, transitive_libraries):
        tc = transitive_libraries
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_package.format(cyclone_version=cyclone_version,
                                                      add_build=True, add_tests=True))
        return tc


    def test_sbom_generation_create(self, hook_setup_post_package_tl):
        tc = hook_setup_post_package_tl
        tc.run("new cmake_lib -d name=bar -d version=1.0 -d requires=engine/1.0 -f")
        # bar -> engine/1.0 -> matrix/1.0
        tc.run("create . -tf=")
        bar_layout = tc.created_layout()
        assert os.path.exists(os.path.join(bar_layout.metadata(), "sbom.cdx.json"))


    def test_sbom_generation_skipped_dependencies(self, hook_setup_post_package):
        tc = hook_setup_post_package
        tc.save({"dep/conanfile.py": GenConanfile("dep", "1.0"),
                 "app/conanfile.py": GenConanfile("app", "1.0")
                                    .with_package_type("application")
                                    .with_requires("dep/1.0"),
                 "conanfile.py": GenConanfile("foo", "1.0").with_tool_requires("app/1.0")})
        tc.run("create dep")
        tc.run("create app")
        tc.run("create .")
        create_layout = tc.created_layout()

        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)
        # A skipped dependency also shows up in the sbom
        assert "pkg:conan/dep@1.0?rref=6a99f55e933fb6feeb96df134c33af44" in content

    @pytest.mark.parametrize("l, n", [('"simple"', 1), ('"multi1", "multi2"', 2), ('("tuple1", "tuple2")', 2)])
    def test_multi_license(self, hook_setup_post_package, l, n):
        tc = hook_setup_post_package
        conanfile = textwrap.dedent(f"""
            from conan import ConanFile
            class HelloConan(ConanFile):
                name = 'foo'
                version = '1.0'
                license = {l}
        """)
        tc.save({"conanfile.py": conanfile})
        tc.run("create .")
        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = json.loads(tc.load(cyclone_path))
        assert len(content["components"][0]["licenses"]) == n

    @pytest.mark.parametrize("l, keys", [('"Mit"', ["id"]), ('"custom_license name"', ["name"]), ('("mIT", "custom")', ["id", "name"])])
    def test_license_spdx_valid(self, hook_setup_post_package, l, keys):
        tc = hook_setup_post_package
        conanfile = textwrap.dedent(f"""
                from conan import ConanFile
                class HelloConan(ConanFile):
                    name = 'foo'
                    version = '1.0'
                    license = {l}
            """)
        tc.save({"conanfile.py": conanfile})
        tc.run("create .")
        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = json.loads(tc.load(cyclone_path))
        for i, l in enumerate(content["components"][0]["licenses"]):
            assert next(iter(l["license"])) == keys[i]



    def test_sbom_generation_no_tool_requires(self, hook_setup_post_package_no_tool_requires):
        tc = hook_setup_post_package_no_tool_requires
        tc.save({"app/conanfile.py": GenConanfile("app", "1.0")
                                    .with_package_type("application"),
                 "conanfile.py": GenConanfile("foo", "1.0").with_tool_requires("app/1.0")})
        tc.run("create app")
        tc.run("create .")
        create_layout = tc.created_layout()

        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)

        assert "pkg:conan/app" not in content


    def test_sbom_generation_transitive_test_requires(self, hook_setup_post_package_no_test):
        tc = hook_setup_post_package_no_test
        tc.save({"test_re/conanfile.py": GenConanfile("test_re", "1.0"),
                 "app/conanfile.py": GenConanfile("app", "1.0")
                                    .with_package_type("application")
                                    .with_test_requires("test_re/1.0"),
                 "conanfile.py": GenConanfile("foo", "1.0").with_tool_requires("app/1.0")})
        tc.run("create test_re")

        tc.run("create app")
        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)
        assert "pkg:conan/test_re@1.0" not in content

        tc.run("create .")
        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)
        assert "pkg:conan/test_re@1.0" not in content


    def test_sbom_generation_dependency_test_require(self, hook_setup_post_package_no_test):
        tc = hook_setup_post_package_no_test
        tc.save({"special/conanfile.py": GenConanfile("special", "1.0"),
                 "foo/conanfile.py": GenConanfile("foo", "1.0")
                .with_test_requires("special/1.0"),
                 "conanfile.py": GenConanfile("bar", "1.0").with_tool_requires("foo/1.0").with_require("special/1.0")})
        tc.run("create special")
        tc.run("create foo")

        tc.run("create .")
        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)
        assert "pkg:conan/special@1.0" in content


    @pytest.fixture()
    def hook_setup_post_generate(self, cyclone_version):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_generate.format(cyclone_version=cyclone_version, name=None))
        return tc


    def test_sbom_generation_install_requires(self, hook_setup_post_generate):
        tc = hook_setup_post_generate
        tc.save({"dep/conanfile.py": GenConanfile("dep", "1.0"),
                 "conanfile.py": GenConanfile("foo", "1.0").with_requires("dep/1.0")})
        tc.run("export dep")
        tc.run("create . --build=missing")

        # cli -> foo -> dep
        tc.run("install --requires=foo/1.0")
        assert os.path.exists(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))


    def test_sbom_generation_install_path(self, hook_setup_post_generate):
        tc = hook_setup_post_generate
        tc.save({"dep/conanfile.py": GenConanfile("dep", "1.0"),
                 "conanfile.py": GenConanfile("foo", "1.0").with_requires("dep/1.0")})
        tc.run("create dep")

        # foo -> dep
        tc.run("install .")
        assert os.path.exists(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))


    def test_sbom_generation_install_path_consumer(self, hook_setup_post_generate):
        tc = hook_setup_post_generate
        tc.save({"dep/conanfile.py": GenConanfile("dep", "1.0"),
                 "conanfile.py": GenConanfile().with_requires("dep/1.0")})
        tc.run("create dep")

        # conanfile.py -> dep
        tc.run("install .")
        assert os.path.exists(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))


    def test_sbom_generation_install_path_txt(self, hook_setup_post_generate):
        tc = hook_setup_post_generate
        tc.save({"dep/conanfile.py": GenConanfile("dep", "1.0"),
                 "conanfile.txt": textwrap.dedent(
                     """
                     [requires]
                     dep/1.0
                     """
                 )})
        tc.run("create dep")

        # foo -> dep
        tc.run("install .")
        assert os.path.exists(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))

    def test_sbom_with_special_root_node(self, hook_setup_post_generate):
        # In this test, we have only one node in the subgraph, which has build context, so the number
        # of components after processing it is zero.
        tc = hook_setup_post_generate
        package_name = "foo"

        conanfile =  textwrap.dedent("""
                from conan import ConanFile
                class FooPackage(ConanFile):
                    name = "foo"
                    version = "1.0"
                    package_type = "build-scripts"
        """)
        tc.save({"conanfile.py": conanfile})
        tc.run("create .")
        create_layout = tc.created_layout()
        assert os.path.exists(os.path.join(create_layout.build(), "sbom", "sbom.cdx.json"))
        with open(os.path.join(create_layout.build(), "sbom", "sbom.cdx.json"), 'r') as file:
            sbom_json = json.load(file)
            assert package_name in sbom_json["metadata"]["component"]["name"]

    @pytest.mark.parametrize("name, result", [
        ("None", "conan-sbom"),
        ('"custom-name"', "custom-name")
    ])
    def test_sbom_generation_custom_name(self, cyclone_version, name, result):
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, sbom_hook_post_generate.format(cyclone_version=cyclone_version, name=name))

        tc.save({"conanfile.py": GenConanfile()})
        tc.run("install .")
        assert os.path.exists(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))
        assert f'"name": "{result}"' in tc.load(os.path.join(tc.current_folder, "sbom", "sbom.cdx.json"))

    def test_cyclonedx_check_content(self, cyclone_version):
        _sbom_hook_post_package = textwrap.dedent("""
        import json
        import os
        from conan.errors import ConanException
        from conan.api.output import ConanOutput
        from conan.tools.sbom import {cyclone_version}

        def post_package(conanfile):
            sbom_cyclonedx= {cyclone_version}(conanfile)
            metadata_folder = conanfile.package_metadata_folder
            file_name = "sbom.cdx.json"
            with open(os.path.join(metadata_folder, file_name), 'w') as f:
                json.dump(sbom_cyclonedx, f, indent=4)
            ConanOutput().success(f"CYCLONEDX CREATED - {{conanfile.package_metadata_folder}}")
        """)
        tc = TestClient()
        hook_path = os.path.join(tc.paths.hooks_path, "hook_sbom.py")
        save(hook_path, _sbom_hook_post_package.format(cyclone_version=cyclone_version))
        conanfile_bar = textwrap.dedent("""
                from conan import ConanFile
                class HelloConan(ConanFile):
                    name = 'bar'
                    version = '1.0'
                    author = 'conan-dev'
                    package_type = 'application'
            """)

        conanfile_foo = textwrap.dedent("""
            from conan import ConanFile
            class HelloConan(ConanFile):
                name = 'foo'
                version = '1.0'
                author = 'conan-dev'
                package_type = 'application'

                def requirements(self):
                    self.requires("bar/1.0")
        """)
        tc.save({"conanfile.py": conanfile_bar})
        tc.run("create .")
        tc.save({"conanfile.py": conanfile_foo})
        tc.run("create .")

        create_layout = tc.created_layout()
        cyclone_path = os.path.join(create_layout.metadata(), "sbom.cdx.json")
        content = tc.load(cyclone_path)
        content_json = json.loads(content)
        if cyclone_version == 'cyclonedx_1_4':
            assert content_json["metadata"]["component"]["author"] == 'conan-dev'
            assert content_json["metadata"]["component"]["type"] == 'application'
            assert content_json["metadata"]["tools"][0]
            assert content_json["components"][0]["author"] == 'conan-dev'
            assert content_json["components"][0]["type"] == 'application'
        elif cyclone_version == 'cyclonedx_1_6':
            assert not content_json["metadata"]["component"].get("author")
            assert content_json["metadata"]["component"]["authors"][0]["name"] == 'conan-dev'
            assert content_json["metadata"]["component"]["type"] == 'application'
            assert content_json["metadata"]["tools"]["components"][0]
            assert not content_json["components"][0].get("author")
            assert content_json["components"][0]["authors"][0]["name"] == 'conan-dev'
            assert content_json["components"][0]["type"] == 'application'
