# -*- coding: utf-8 -*-
# Part of Odoo, Flectra. See LICENSE file for full copyright and licensing details.

import base64

from flectra import http, _
from flectra.exceptions import AccessError
from flectra.http import request
from flectra.tools import consteq
from flectra.addons.portal.controllers.mail import _message_post_helper
from flectra.addons.portal.controllers.portal import CustomerPortal, pager as portal_pager, get_records_pager


class CustomerPortal(CustomerPortal):

    def _prepare_portal_layout_values(self):
        values = super(CustomerPortal, self)._prepare_portal_layout_values()
        partner = request.env.user.partner_id

        SaleOrder = request.env['sale.order']
        quotation_count = SaleOrder.search_count([
            ('message_partner_ids', 'child_of', [partner.commercial_partner_id.id]),
            ('state', 'in', ['sent', 'cancel'])
        ])
        order_count = SaleOrder.search_count([
            ('message_partner_ids', 'child_of', [partner.commercial_partner_id.id]),
            ('state', 'in', ['sale', 'done'])
        ])

        values.update({
            'quotation_count': quotation_count,
            'order_count': order_count,
        })
        return values

    #
    # Quotations and Sales Orders
    #

    def _order_check_access(self, order_id, access_token=None):
        order = request.env['sale.order'].browse([order_id])
        order_sudo = order.sudo()
        try:
            order.check_access_rights('read')
            order.check_access_rule('read')
        except AccessError:
            if not access_token or not consteq(order_sudo.access_token, access_token):
                raise
        return order_sudo

    def _order_get_page_view_values(self, order, access_token, **kwargs):
        order_invoice_lines = {il.product_id.id: il.invoice_id for il in order.invoice_ids.mapped('invoice_line_ids')}
        values = {
            'order': order,
            'order_invoice_lines': order_invoice_lines,
        }
        if access_token:
            values['no_breadcrumbs'] = True
            values['access_token'] = access_token
        values['portal_confirmation'] = request.env['ir.config_parameter'].sudo().get_param('sale.sale_portal_confirmation_options', default='none')

        if kwargs.get('error'):
            values['error'] = kwargs['error']
        if kwargs.get('warning'):
            values['warning'] = kwargs['warning']
        if kwargs.get('success'):
            values['success'] = kwargs['success']

        history = request.session.get('my_orders_history', [])
        values.update(get_records_pager(history, order))

        return values

    @http.route(['/my/quotes', '/my/quotes/page/<int:page>'], type='http', auth="user", website=True)
    def portal_my_quotes(self, page=1, date_begin=None, date_end=None, sortby=None, **kw):
        values = self._prepare_portal_layout_values()
        partner = request.env.user.partner_id
        SaleOrder = request.env['sale.order']

        domain = [
            ('message_partner_ids', 'child_of', [partner.commercial_partner_id.id]),
            ('state', 'in', ['sent', 'cancel'])
        ]

        searchbar_sortings = {
            'date': {'label': _('Order Date'), 'order': 'date_order desc'},
            'name': {'label': _('Reference'), 'order': 'name'},
            'stage': {'label': _('Stage'), 'order': 'state'},
        }

        # default sortby order
        if not sortby:
            sortby = 'date'
        sort_order = searchbar_sortings[sortby]['order']

        archive_groups = self._get_archive_groups('sale.order', domain)
        if date_begin and date_end:
            domain += [('create_date', '>', date_begin), ('create_date', '<=', date_end)]

        # count for pager
        quotation_count = SaleOrder.search_count(domain)
        # make pager
        pager = portal_pager(
            url="/my/quotes",
            url_args={'date_begin': date_begin, 'date_end': date_end, 'sortby': sortby},
            total=quotation_count,
            page=page,
            step=self._items_per_page
        )
        # search the count to display, according to the pager data
        quotations = SaleOrder.search(domain, order=sort_order, limit=self._items_per_page, offset=pager['offset'])
        request.session['my_quotes_history'] = quotations.ids[:100]

        values.update({
            'date': date_begin,
            'quotations': quotations.sudo(),
            'page_name': 'quote',
            'pager': pager,
            'archive_groups': archive_groups,
            'default_url': '/my/quotes',
            'searchbar_sortings': searchbar_sortings,
            'sortby': sortby,
        })
        return request.render("sale.portal_my_quotations", values)

    @http.route(['/my/orders', '/my/orders/page/<int:page>'], type='http', auth="user", website=True)
    def portal_my_orders(self, page=1, date_begin=None, date_end=None, sortby=None, **kw):
        values = self._prepare_portal_layout_values()
        partner = request.env.user.partner_id
        SaleOrder = request.env['sale.order']

        domain = [
            ('message_partner_ids', 'child_of', [partner.commercial_partner_id.id]),
            ('state', 'in', ['sale', 'done'])
        ]

        searchbar_sortings = {
            'date': {'label': _('Order Date'), 'order': 'date_order desc'},
            'name': {'label': _('Reference'), 'order': 'name'},
            'stage': {'label': _('Stage'), 'order': 'state'},
        }
        # default sortby order
        if not sortby:
            sortby = 'date'
        sort_order = searchbar_sortings[sortby]['order']

        archive_groups = self._get_archive_groups('sale.order', domain)
        if date_begin and date_end:
            domain += [('create_date', '>', date_begin), ('create_date', '<=', date_end)]

        # count for pager
        order_count = SaleOrder.search_count(domain)
        # pager
        pager = portal_pager(
            url="/my/orders",
            url_args={'date_begin': date_begin, 'date_end': date_end, 'sortby': sortby},
            total=order_count,
            page=page,
            step=self._items_per_page
        )
        # content according to pager and archive selected
        orders = SaleOrder.search(domain, order=sort_order, limit=self._items_per_page, offset=pager['offset'])
        request.session['my_orders_history'] = orders.ids[:100]

        values.update({
            'date': date_begin,
            'orders': orders.sudo(),
            'page_name': 'order',
            'pager': pager,
            'archive_groups': archive_groups,
            'default_url': '/my/orders',
            'searchbar_sortings': searchbar_sortings,
            'sortby': sortby,
        })
        return request.render("sale.portal_my_orders", values)

    @http.route(['/my/orders/<int:order>'], type='http', auth="public", website=True)
    def portal_order_page(self, order=None, access_token=None, **kw):
        try:
            order_sudo = self._order_check_access(order, access_token=access_token)
        except AccessError:
            return request.redirect('/my')

        values = self._order_get_page_view_values(order_sudo, access_token, **kw)
        return request.render("sale.portal_order_page", values)

    @http.route(['/my/orders/pdf/<int:order_id>'], type='http', auth="public", website=True)
    def portal_order_report(self, order_id, access_token=None, **kw):
        try:
            order_sudo = self._order_check_access(order_id, access_token)
        except AccessError:
            return request.redirect('/my')

        # print report as sudo, since it require access to taxes, payment term, ... and portal
        # does not have those access rights.
        pdf = request.env.ref('sale.action_report_saleorder').sudo().render_qweb_pdf([order_sudo.id])[0]
        pdfhttpheaders = [
            ('Content-Type', 'application/pdf'),
            ('Content-Length', len(pdf)),
        ]
        return request.make_response(pdf, headers=pdfhttpheaders)

    def _portal_quote_user_can_accept(self, order_id):
        return request.env['ir.config_parameter'].sudo().get_param('sale.sale_portal_confirmation_options', default='none') in ('pay', 'sign')

    @http.route(['/my/quotes/accept'], type='json', auth="public", website=True)
    def portal_quote_accept(self, res_id, access_token=None, partner_name=None, signature=None):
        if not self._portal_quote_user_can_accept(res_id):
            return {'error': _('Operation not allowed')}
        if not signature:
            return {'error': _('Signature is missing.')}

        try:
            order_sudo = self._order_check_access(res_id, access_token=access_token)
        except AccessError:
            return {'error': _('Invalid order')}
        if order_sudo.state != 'sent':
            return {'error': _('Order is not in a state requiring customer validation.')}

        order_sudo.action_confirm()

        _message_post_helper(
            res_model='sale.order',
            res_id=order_sudo.id,
            message=_('Order signed by %s') % (partner_name,),
            attachments=[('signature.png', base64.b64decode(signature))] if signature else [],
            **({'token': access_token} if access_token else {}))
        return {
            'success': _('Your Order has been confirmed.'),
            'redirect_url': '/my/orders/%s?%s' % (order_sudo.id, access_token and 'access_token=%s' % order_sudo.access_token or ''),
        }