import os
from urllib.parse import urlsplit

from django.conf import settings
from django.conf.urls.static import static
from django.contrib.staticfiles.views import serve as staticfiles_serve
from django.http import HttpRequest, HttpResponse
from django.urls import path
from django.views.generic import TemplateView
from django.views.static import serve

from zerver.views.auth import config_error, login_page
from zerver.views.development.email_log import clear_emails, email_page, generate_all_emails
from zerver.views.development.integrations import (
    check_send_webhook_fixture_message,
    dev_panel,
    get_fixtures,
    send_all_webhook_fixture_messages,
)
from zerver.views.development.registration import (
    confirmation_key,
    register_development_realm,
    register_development_user,
)

# These URLs are available only in the development environment

use_prod_static = not settings.DEBUG

urls = [
    # Serve useful development environment resources (docs, coverage reports, etc.)
    path(
        "coverage/<path:path>",
        serve,
        {"document_root": os.path.join(settings.DEPLOY_ROOT, "var/coverage"), "show_indexes": True},
    ),
    path(
        "node-coverage/<path:path>",
        serve,
        {
            "document_root": os.path.join(settings.DEPLOY_ROOT, "var/node-coverage/lcov-report"),
            "show_indexes": True,
        },
    ),
    path(
        "docs/<path:path>",
        serve,
        {"document_root": os.path.join(settings.DEPLOY_ROOT, "docs/_build/html")},
    ),
    # The special no-password login endpoint for development
    path("devlogin/", login_page, {"template_name": "zerver/dev_login.html"}, name="login_page"),
    # Page for testing email templates
    path("emails/", email_page),
    path("emails/generate/", generate_all_emails),
    path("emails/clear/", clear_emails),
    # Listing of useful URLs and various tools for development
    path("devtools/", TemplateView.as_view(template_name="zerver/dev_tools.html")),
    # Register New User and Realm
    path("devtools/register_user/", register_development_user, name="register_dev_user"),
    path("devtools/register_realm/", register_development_realm, name="register_dev_realm"),
    # Have easy access for error pages
    path("errors/404/", TemplateView.as_view(template_name="404.html")),
    path("errors/5xx/", TemplateView.as_view(template_name="500.html")),
    # Add a convenient way to generate webhook messages from fixtures.
    path("devtools/integrations/", dev_panel),
    path(
        "devtools/integrations/check_send_webhook_fixture_message",
        check_send_webhook_fixture_message,
    ),
    path(
        "devtools/integrations/send_all_webhook_fixture_messages", send_all_webhook_fixture_messages
    ),
    path("devtools/integrations/<integration_name>/fixtures", get_fixtures),
    path("config-error/<error_category_name>", config_error, name="config_error"),
    path("config-error/remoteuser/<error_category_name>", config_error),
]

# Serve static assets via the Django server
if use_prod_static:
    urls += [
        path("static/<path:path>", serve, {"document_root": settings.STATIC_ROOT}),
    ]
else:

    def serve_static(request: HttpRequest, path: str) -> HttpResponse:
        response = staticfiles_serve(request, path)
        response["Access-Control-Allow-Origin"] = "*"
        return response

    urls += static(urlsplit(settings.STATIC_URL).path, view=serve_static)

i18n_urls = [
    path("confirmation_key/", confirmation_key),
]
urls += i18n_urls

# On a production instance, these files would be served by nginx.
if settings.LOCAL_UPLOADS_DIR is not None:
    avatars_url = path(
        "user_avatars/<path:path>",
        serve,
        {"document_root": os.path.join(settings.LOCAL_UPLOADS_DIR, "avatars")},
    )
    urls += [avatars_url]