import os
import sys

import flask

app = flask.Flask("seagull-game", root_path="/app")
orig_url_for = app.url_for

def url_for_override(endpoint, *posargs, _anchor=None, _method=None, _scheme=None, _external=None, self=app, **values):
    if endpoint == "static":
        # bandaid for #1
        if not os.path.exists("/app/static/" + values["filename"]):
            sys.stderr.write("WARN:: requested {0} from local file, but it doesn't exist in this container. Redirecting to CDN...\n".format(values["filename"]))
            sys.stderr.flush()
            return "https://cdn.otl-hga.net/seagull/" + values["filename"]
    
    return orig_url_for(endpoint, *posargs, _anchor=_anchor, _method=_method, _scheme=_scheme, _external=_external, **values)

app.url_for = url_for_override

base_context = {}
base_context_live = False

def render_base_context():
    global base_context
    global base_context_live

    base_context["svchost"] = flask.request.host

    domain_components = flask.request.host.split(".")
    base_domain = ".".join(domain_components[-2:])

    # all this wind up for...
    if base_domain == "otl-hga.net": # production, use assets from S3
        base_context["styles"] = ["https://cdn.otl-hga.net/seagull/css/seagull.css"]
        base_context["scripts"] = ["https://cdn.otl-hga.net/seagull/js/seagull.js"]
        base_context["seagull_pic"] = "https://cdn.otl-hga.net/seagull/image/seagull.jpg"
    else:                            # dev, serve files from here
        print(base_domain)
        base_context["styles"] = [app.url_for("static", filename="css/seagull.css")]
        base_context["scripts"] = [app.url_for("static", filename="js/seagull.js")]
        base_context["seagull_pic"] = app.url_for("static", filename="image/seagull.jpg")

    base_context_live = True

@app.route("/core/ping")
def aws_healthcheck_ping():
    return flask.Response("OK", content_type="text/plain")