from scripts.language_detect import (
    detect_language, is_dep_manifest, is_gha_file, is_supported_source,
    known_unsupported_language,
)


def test_known_unsupported_languages():
    assert known_unsupported_language("cmd/main.go") == "Go"
    assert known_unsupported_language("lib/foo.rb") == "Ruby"
    assert known_unsupported_language("src/Main.java") == "Java"
    assert known_unsupported_language("src/main.rs") == "Rust"
    assert known_unsupported_language("src/App.kt") == "Kotlin"


def test_known_unsupported_returns_none_for_supported():
    assert known_unsupported_language("src/api.py") is None
    assert known_unsupported_language("src/index.ts") is None


def test_known_unsupported_returns_none_for_non_source():
    assert known_unsupported_language("README.md") is None
    assert known_unsupported_language("Dockerfile") is None
    assert known_unsupported_language("config.yaml") is None


def test_python_file_detected():
    assert detect_language("src/api.py") == "python"


def test_typescript_extensions():
    assert detect_language("src/index.ts") == "typescript"
    assert detect_language("src/component.tsx") == "typescript"


def test_javascript_extensions():
    assert detect_language("src/index.js") == "javascript"
    assert detect_language("src/component.jsx") == "javascript"
    assert detect_language("src/module.mjs") == "javascript"
    assert detect_language("src/legacy.cjs") == "javascript"


def test_csharp_file_detected():
    assert detect_language("Program.cs") == "csharp"


def test_unsupported_source_returns_none():
    assert detect_language("main.go") is None
    assert detect_language("script.rb") is None
    assert detect_language("Main.java") is None


def test_non_source_files_return_none():
    assert detect_language("README.md") is None
    assert detect_language("Dockerfile") is None
    assert detect_language("config.yaml") is None


def test_is_dep_manifest_python():
    assert is_dep_manifest("requirements.txt")
    assert is_dep_manifest("requirements-dev.txt")
    assert is_dep_manifest("pyproject.toml")
    assert is_dep_manifest("poetry.lock")
    assert is_dep_manifest("Pipfile.lock")


def test_is_dep_manifest_javascript():
    assert is_dep_manifest("package.json")
    assert is_dep_manifest("package-lock.json")
    assert is_dep_manifest("yarn.lock")
    assert is_dep_manifest("pnpm-lock.yaml")


def test_is_dep_manifest_csharp():
    assert is_dep_manifest("MyApp.csproj")
    assert is_dep_manifest("MyApp.sln")
    assert is_dep_manifest("packages.config")


def test_is_supported_source():
    assert is_supported_source("src/api.py")
    assert is_supported_source("src/index.ts")
    assert not is_supported_source("main.go")
    assert not is_supported_source("README.md")


def test_lua_file_detected():
    assert detect_language("src/game.lua") == "lua"


def test_lua_is_supported_source():
    assert is_supported_source("src/game.lua")


def test_lua_not_in_known_unsupported():
    assert known_unsupported_language("src/game.lua") is None


def test_powershell_extensions_detected():
    assert detect_language("scripts/Deploy.ps1") == "powershell"
    assert detect_language("module/Helpers.psm1") == "powershell"
    assert detect_language("module/Helpers.psd1") == "powershell"


def test_powershell_is_supported_source():
    assert is_supported_source("scripts/Deploy.ps1")


def test_powershell_not_in_known_unsupported():
    assert known_unsupported_language("scripts/Deploy.ps1") is None


def test_gha_workflow_yml_detected():
    assert is_gha_file(".github/workflows/ci.yml")


def test_gha_workflow_yaml_detected():
    assert is_gha_file(".github/workflows/deploy.yaml")


def test_gha_actions_action_yml_detected():
    assert is_gha_file(".github/actions/my-action/action.yml")


def test_non_gha_yaml_not_detected():
    assert not is_gha_file("config/app.yml")
    assert not is_gha_file("docker-compose.yaml")
    assert not is_gha_file("README.md")


def test_gha_file_wrong_extension():
    assert not is_gha_file(".github/workflows/ci.json")


def test_gha_file_windows_style_path():
    assert is_gha_file(".github\\workflows\\ci.yml")