import contextlib
import os
import flask
import sys

import lc.config as c
import lc.error as e
import lc.model as m
import lc.request as r
from lc.web import Endpoint, endpoint, render

app = c.app

@endpoint("/")
class Index(Endpoint):
    def html(self):
        return render("main", title="main", content="whoo", user=self.user)


@endpoint("/auth")
class Auth(Endpoint):
    def api_post(self):
        _, token = m.User.login(r.User.from_json(flask.request.data))
        return token


@endpoint("/login")
class Login(Endpoint):
    def html(self):
        return render("main", title="login", content=render("login"), user=self.user)

    def api_post(self):
        print(flask.request.form)
        u, token = m.User.login(r.User(
            name=flask.request.form["username"],
            password=flask.request.form["password"],
        ))
        flask.session["auth"] = token
        raise e.LCRedirect(u.base_url())

@endpoint("/logout")
class Logout(Endpoint):
    def html(self):
        if "auth" in flask.session:
            del flask.session["auth"]
        raise e.LCRedirect("/")

    def api_post(self):
        if "auth" in flask.session:
            del flask.session["auth"]
        raise e.LCRedirect("/")


@endpoint("/u")
class CreateUser(Endpoint):
    def api_post(self):
        u = m.User.from_request(r.User.from_json(flask.request.data))
        return flask.redirect(u.base_url())


@endpoint("/u/<string:slug>")
class GetUser(Endpoint):
    def html(self, slug: str):
        u = m.User.by_slug(slug)
        pg = int(flask.request.args.get("page", 0))
        links = u.get_links(page=pg)
        return render(
            "main",
            title=f"user {u.name}",
            content=render("linklist", links=links),
            user=self.user,
        )

    def api_get(self, slug: str):
        return m.User.by_slug(slug).to_dict()


@endpoint("/u/<string:user>/l")
class CreateLink:
    def api_post(self, user: str):
        pass


@endpoint("/u/<string:user>/l/<string:link>")
class GetLink:
    def api_get(self, user: str, link: str):
        pass

    def html(self, user: str, link: str):
        pass


@endpoint("/u/<string:user>/t/<path:tag>")
class GetTaggedLinks:
    def html(self, user: str, tag: str):
        u = m.User.by_slug(user)
        pg = int(flask.request.args.get("page", 0))
        t = u.get_tag(tag)
        links = t.get_links(page=pg)
        return render(
            "main", title=f"tag {tag}", content=render("linklist", links=links), user=u,
        )