#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Home routes"""

import typing as t

import flask
from werkzeug.wrappers import Response

import pbpl.forms.prow as form_pow
import pbpl.forms.text as text_form
from pbpl.db import db
from pbpl.models import TextModel

from .bp import Bp

home: Bp = Bp("home", __name__)

__all__: t.Tuple[str] = ("home",)


@home.get("/", ishtml=True)
@home.csp("img-src $self; script-src $internal $wasm; style-src $internal; form-action $self; connect-src $self; manifest-src $self")
def index() -> str:
    """Home page"""

    nonce: str = form_pow.proof_of_work_protect_session("home.index/text")

    return flask.render_template(
        "home/index.j2",
        form=text_form.TextForm(),
        texts=TextModel.query.all(),
        pow_nonce=nonce,
    )


@home.post("/")
@home.csp("img-src $self; script-src $internal; style-src $internal")
def text() -> Response:
    """Post some text"""

    form: text_form.FlaskForm = text_form.TextForm()

    if not form.validate_on_submit():  # type: ignore
        flask.flash("Invalid form data/form", "error")
        flask.abort(400)

    if form.text.data is None:
        flask.flash("Invalid form text", "error")
        flask.abort(400)

    if form.pow_solution.data is None or not form_pow.proof_of_work_verify_session(
        "home.index/text",
        form.pow_solution.data,
    ):
        flask.flash("Invalid Proof-of-Work solution", "error")
        flask.abort(403)

    db.session.add(TextModel(text=form.text.data))
    db.session.commit()

    flask.flash("Your text has been saved")
    return flask.redirect(flask.url_for("home.index"))


@home.get("/manifest.json")
@home.csp("manifest-src $self; img-src $self")
@home.cache("30d")
def manifest() -> t.Any:
    """Manifest file"""
    return flask.jsonify(  # type: ignore
        {
            "$schema": "https://json.schemastore.org/web-manifest-combined.json",
            "short_name": "Example page",
            "name": "Example page",
            "description": "This is an example description",
            "icons": [
                {
                    "src": "/favicon.ico",
                    "sizes": "256x256",
                    "type": "image/vnd.microsoft.icon",
                }
            ],
            "start_url": ".",
            "display": "standalone",
            "theme_color": "#fbfbfb",
            "background_color": "#121212",
        }
    )


@home.get("/favicon.ico")
@home.csp("img-src $self")
@home.cache("30d")
def favicon() -> Response:
    """Website icon"""
    return flask.send_from_directory("static", "favicon.ico")