#!/usr/bin/env python3

# Copyright (c) 2017 Ondřej Kudlík (Kepi), https://kepi.cz

# qutepocket is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutepocket is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.

import os

from pocket import Pocket, PocketAutException, PocketException

CONSUMER_KEY = "70250-26f8e47a9dba2989767f4512"
REDIRECT_URI = "https://github.com/kepi/qutepocket/wiki/Authorized"

SECRET = os.environ['QUTE_CONFIG_DIR'] + '/qutepocket.secrets'
REQUEST = os.environ['QUTE_CONFIG_DIR'] + '/qutepocket.request'

FIFO = open(os.environ['QUTE_FIFO'], 'w')


def command(command):
    FIFO.write(command + "\n")


def get_request_token():
    request_token = pocket.get_request_token(REDIRECT_URI)

    if not request_token:
        exit(11)

    with open(REQUEST, 'w') as request_file:
        request_file.write(request_token)

    auth_url = ("https://getpocket.com/auth/authorize"
                "?request_token={0}"
                "&redirect_uri={1}"
                ).format(request_token, REDIRECT_URI)

    msg = ("Accept access, close opened page and use "
           "Save to Pocket command again.")

    command('open -t %s' % auth_url)
    command('message-info "%s"' % msg)
    exit(0)


def get_access_token():
    try:
        with open(REQUEST) as request_file:
            request_token = request_file.read()

        access_token = pocket.get_access_token(request_token)
        print(access_token)
        with open(SECRET, 'w') as request_file:
            request_file.write(access_token)
            os.remove(REQUEST)

            msg = "Congratulation, qutepocket is authorized now :)"
            command('message-info "%s"' % msg)

    except PocketAutException:
        os.remove(REQUEST)
        get_request_token()
        exit(12)


def reauthorize():
    command('message-warning "Invalid secret token, trying to reauthorize."')
    if os.path.isfile(SECRET):
        os.remove(SECRET)

    get_request_token()


def add():
    try:
        pocket.add(os.environ['QUTE_URL'], os.environ['QUTE_TITLE'])
        command('message-info "Great, page is in your Pocket."')

    except PocketException as e:
        # secret token e
        if e.error_code == 107:
            reauthorize()

        else:
            command('message-warning "Error while Pocketing the page: %s %s"'
                    % (e.message, e.error_code))


if not os.path.isfile(SECRET):
    access_token = ""
    pocket = Pocket(CONSUMER_KEY, access_token)

    if os.path.isfile(REQUEST):
        get_access_token()
    else:
        get_request_token()

with open(SECRET) as secrets_file:
    access_token = secrets_file.read()
    pocket = Pocket(CONSUMER_KEY, access_token)
    add()

FIFO.close()