from django.http import JsonResponse
from django.urls import reverse

from entries.from_url import from_url
from lemoncurry import requests
from lemoncurry.utils import absolute_url
from .. import error


def config(request):
    config = syndicate_to(request)
    config["media-endpoint"] = absolute_url(request, reverse("micropub:media"))
    return config


def source(request):
    if "url" not in request.GET:
        raise error.bad_req("must specify url parameter for source query")
    entry = from_url(request.GET["url"])
    props = {}

    keys = set(request.GET.getlist("properties") + request.GET.getlist("properties[]"))
    if not keys or "content" in keys:
        props["content"] = [entry.content]
    if (not keys or "category" in keys) and entry.cats.exists():
        props["category"] = [cat.name for cat in entry.cats.all()]
    if (not keys or "name" in keys) and entry.name:
        props["name"] = [entry.name]
    if (not keys or "syndication" in keys) and entry.syndications.exists():
        props["syndication"] = [synd.url for synd in entry.syndications.all()]

    return {"type": ["h-entry"], "properties": props}


def syndicate_to(request):
    return {"syndicate-to": []}


queries = {
    "config": config,
    "source": source,
    "syndicate-to": syndicate_to,
}


def query(request):
    if "q" not in request.GET:
        raise error.bad_req("must specify q parameter")
    q = request.GET["q"]
    if q not in queries:
        raise error.bad_req("unsupported query {0}".format(q))
    res = queries[q](request)
    return JsonResponse(res)