# Copyright(C) 2017      Théo Dorée
#
# This file is part of a woob module.
#
# This woob module is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This woob module 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this woob module. If not, see <http://www.gnu.org/licenses/>.

# flake8: compatible

from collections import OrderedDict
from urllib.parse import urljoin

from woob.capabilities.bill import (
    DocumentTypes, CapDocument, Subscription, Document, DocumentNotFound,
    DocumentCategory,
)
from woob.capabilities.base import find_object, NotAvailable
from woob.tools.backend import Module, BackendConfig
from woob.tools.value import ValueBackendPassword, Value, ValueTransient
from woob.tools.pdf import html_to_pdf

from .browser import AmazonBrowser
from .en.browser import AmazonEnBrowser
from .de.browser import AmazonDeBrowser
from .uk.browser import AmazonUkBrowser

__all__ = ['AmazonModule']


class AmazonModule(Module, CapDocument):
    NAME = 'amazon'
    DESCRIPTION = 'Amazon'
    MAINTAINER = 'Théo Dorée'
    EMAIL = 'tdoree@budget-insight.com'
    LICENSE = 'LGPLv3+'
    VERSION = '3.6'

    website_choices = OrderedDict([
        (k, '%s (%s)' % (v, k))
        for k, v in sorted({
            'www.amazon.com': 'Amazon.com',
            'www.amazon.fr': 'Amazon France',
            'www.amazon.de': 'Amazon.de',
            'www.amazon.co.uk': 'Amazon UK',
        }.items())
    ])

    BROWSERS = {
        'www.amazon.fr': AmazonBrowser,
        'www.amazon.com': AmazonEnBrowser,
        'www.amazon.de': AmazonDeBrowser,
        'www.amazon.co.uk': AmazonUkBrowser,
    }

    CONFIG = BackendConfig(
        Value('website', label='Website', choices=website_choices, default='www.amazon.com'),
        ValueBackendPassword('email', label='Username', masked=False),
        ValueBackendPassword('password', label='Password'),
        ValueTransient('captcha_response', label='Captcha Response'),
        ValueTransient('pin_code', label='OTP response'),
        ValueTransient('request_information'),
        ValueTransient('resume'),
    )

    accepted_document_types = (DocumentTypes.BILL,)
    document_categories = {DocumentCategory.SHOPPING}

    def create_default_browser(self):
        self.BROWSER = self.BROWSERS[self.config['website'].get()]
        return self.create_browser(self.config)

    def iter_subscription(self):
        return self.browser.iter_subscription()

    def get_document(self, _id):
        subid = _id.rsplit('_', 1)[0]
        subscription = self.get_subscription(subid)

        return find_object(self.iter_documents(subscription), id=_id, error=DocumentNotFound)

    def iter_documents(self, subscription):
        if not isinstance(subscription, Subscription):
            subscription = self.get_subscription(subscription)
        return self.browser.iter_documents(subscription)

    def get_pdf_from_cache_or_download_it(self, document):
        summary_document = self.browser.summary_documents_content.pop(document.id, None)
        if summary_document:
            return summary_document
        return self.browser.open(document.url).content

    def download_document(self, document):
        if not isinstance(document, Document):
            document = self.get_document(document)
        if document.url is NotAvailable:
            return
        return self.get_pdf_from_cache_or_download_it(document)

    def download_document_pdf(self, document):
        if not isinstance(document, Document):
            document = self.get_document(document)
        if document.url is NotAvailable:
            return
        if document.format == 'pdf':
            return self.get_pdf_from_cache_or_download_it(document)
        # We can't pass the html document we saved before as a string since there is a freeze when wkhtmltopdf
        # takes a string
        url = urljoin(self.browser.BASEURL, document.url)
        return html_to_pdf(self.browser, url=url)