"""Basic routes required for all pages"""
import os
from urllib.parse import urljoin

from flask import (
    Blueprint,
    render_template,
    current_app as app,
    send_from_directory)

from uploader.oauth2.client import user_logged_in

base = Blueprint("base", __name__)


@base.route("/favicon.ico", methods=["GET"])
def favicon():
    """Return the favicon."""
    return send_from_directory(os.path.join(app.root_path, "static"),
                               "images/CITGLogo.png",
                               mimetype="image/png")


@base.route("/", methods=["GET"])
def index():
    """Load the landing page"""
    return render_template("index.html" if user_logged_in() else "login.html",
                           gn2server_intro=urljoin(app.config["GN2_SERVER_URL"],
                                                   "/intro"))

def appenv():
    """Get app's guix environment path."""
    return os.environ.get("GN_UPLOADER_ENVIRONMENT")

@base.route("/bootstrap/<path:filename>")
def bootstrap(filename):
    """Fetch bootstrap files."""
    return send_from_directory(
        appenv(), f"share/genenetwork2/javascript/bootstrap/{filename}")


@base.route("/jquery/<path:filename>")
def jquery(filename):
    """Fetch jquery files."""
    return send_from_directory(
        appenv(), f"share/genenetwork2/javascript/jquery/{filename}")


@base.route("/node-modules/<path:filename>")
def node_modules(filename):
    """Fetch node-js modules."""
    return send_from_directory(
        appenv(), f"lib/node_modules/{filename}")