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from os.path import dirname, join
from unittest.mock import Mock

from superset.extensions import UIManifestProcessor

APP_DIR = f"{dirname(__file__)}/fixtures"
SUPERSET_DIR = join(dirname(__file__), "..", "..", "superset")


def test_get_manifest_with_prefix():
    app = Mock(
        config={"STATIC_ASSETS_PREFIX": "https://cool.url/here"},
        template_context_processors={None: []},
    )
    manifest_processor = UIManifestProcessor(APP_DIR)
    manifest_processor.init_app(app)
    manifest = manifest_processor.get_manifest()
    assert manifest["js_manifest"]("main") == ["/static/dist/main-js.js"]
    assert manifest["css_manifest"]("main") == ["/static/dist/main-css.css"]
    assert manifest["js_manifest"]("styles") == ["/static/dist/styles-js.js"]
    assert manifest["css_manifest"]("styles") == []
    assert manifest["assets_prefix"] == "https://cool.url/here"


def test_get_manifest_no_prefix():
    app = Mock(
        config={"STATIC_ASSETS_PREFIX": ""}, template_context_processors={None: []}
    )
    manifest_processor = UIManifestProcessor(APP_DIR)
    manifest_processor.init_app(app)
    manifest = manifest_processor.get_manifest()
    assert manifest["js_manifest"]("main") == ["/static/dist/main-js.js"]
    assert manifest["css_manifest"]("main") == ["/static/dist/main-css.css"]
    assert manifest["js_manifest"]("styles") == ["/static/dist/styles-js.js"]
    assert manifest["css_manifest"]("styles") == []
    assert manifest["assets_prefix"] == ""


def test_spa_template_includes_css_bundles():
    """
    Verify spa.html loads CSS bundles for production builds.
    """
    template_path = join(SUPERSET_DIR, "templates", "superset", "spa.html")
    with open(template_path) as f:
        template_content = f.read()

    assert "css_bundle(assets_prefix, 'theme')" in template_content, (
        "spa.html must call css_bundle for the 'theme' entry to load "
        "extracted CSS (including font @font-face declarations) in production builds"
    )
    assert "css_bundle(assets_prefix, entry)" in template_content, (
        "spa.html must call css_bundle for the page entry to load "
        "entry-specific extracted CSS in production builds"
    )