import inspect

from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
from fastapi.openapi.utils import calculate_relative_url


def test_strings_in_generated_swagger():
    sig = inspect.signature(get_swagger_ui_html)
    swagger_js_url = sig.parameters.get("swagger_js_url").default  # type: ignore
    swagger_css_url = sig.parameters.get("swagger_css_url").default  # type: ignore
    swagger_favicon_url = sig.parameters.get("swagger_favicon_url").default  # type: ignore
    html = get_swagger_ui_html(openapi_url="/docs", title="title")
    body_content = html.body.decode()
    assert swagger_js_url in body_content
    assert swagger_css_url in body_content
    assert swagger_favicon_url in body_content


def test_strings_in_custom_swagger():
    swagger_js_url = "swagger_fake_file.js"
    swagger_css_url = "swagger_fake_file.css"
    swagger_favicon_url = "swagger_fake_file.png"
    html = get_swagger_ui_html(
        openapi_url="/docs",
        title="title",
        swagger_js_url=swagger_js_url,
        swagger_css_url=swagger_css_url,
        swagger_favicon_url=swagger_favicon_url,
    )
    body_content = html.body.decode()
    assert swagger_js_url in body_content
    assert swagger_css_url in body_content
    assert swagger_favicon_url in body_content


def test_strings_in_generated_redoc():
    sig = inspect.signature(get_redoc_html)
    redoc_js_url = sig.parameters.get("redoc_js_url").default  # type: ignore
    redoc_favicon_url = sig.parameters.get("redoc_favicon_url").default  # type: ignore
    html = get_redoc_html(openapi_url="/docs", title="title")
    body_content = html.body.decode()
    assert redoc_js_url in body_content
    assert redoc_favicon_url in body_content


def test_strings_in_custom_redoc():
    redoc_js_url = "fake_redoc_file.js"
    redoc_favicon_url = "fake_redoc_file.png"
    html = get_redoc_html(
        openapi_url="/docs",
        title="title",
        redoc_js_url=redoc_js_url,
        redoc_favicon_url=redoc_favicon_url,
    )
    body_content = html.body.decode()
    assert redoc_js_url in body_content
    assert redoc_favicon_url in body_content


def test_google_fonts_in_generated_redoc():
    body_with_google_fonts = get_redoc_html(
        openapi_url="/docs", title="title"
    ).body.decode()
    assert "fonts.googleapis.com" in body_with_google_fonts
    body_without_google_fonts = get_redoc_html(
        openapi_url="/docs", title="title", with_google_fonts=False
    ).body.decode()
    assert "fonts.googleapis.com" not in body_without_google_fonts


def test_calculate_relative_url() -> None:
    assert calculate_relative_url("/docs/", "/docs/a.json") == "./a.json"
    assert calculate_relative_url("/docs", "/docs/a.json") == "./docs/a.json"
    assert calculate_relative_url("/docs/", "/docs/subdir/a.json") == "./subdir/a.json"
    assert (
        calculate_relative_url("/docs", "/docs/subdir/a.json") == "./docs/subdir/a.json"
    )
    assert calculate_relative_url("/", "/a.json") == "./a.json"
    assert calculate_relative_url("/b.json", "/a.json") == "./a.json"
    assert calculate_relative_url("/docs/a.json", "/docs/a.json") == "./a.json"
    assert calculate_relative_url("/", "/docs/a.json") == "./docs/a.json"
    assert calculate_relative_url("/docs", "/") == "./"
    assert calculate_relative_url("/docs/", "/") == "../"

    assert calculate_relative_url(None, "/any/path") == "/any/path"
    assert calculate_relative_url("http://example.com", "/any/path") == "/any/path"
    assert (
        calculate_relative_url("http://example.com", "http://a.com/any/path")
        == "http://a.com/any/path"
    )