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

import base64
from collections import OrderedDict
from datetime import datetime

from odoo import http
from odoo.exceptions import AccessError, MissingError
from odoo.http import request, Response
from odoo.tools import image_process
from odoo.tools.translate import _
from odoo.addons.portal.controllers.portal import pager as portal_pager, CustomerPortal
from odoo.addons.web.controllers.main import Binary


class CustomerPortal(CustomerPortal):

    def _prepare_home_portal_values(self, counters):
        values = super()._prepare_home_portal_values(counters)
        if 'purchase_count' in counters:
            values['purchase_count'] = request.env['purchase.order'].search_count([
                ('state', 'in', ['purchase', 'done', 'cancel'])
            ]) if request.env['purchase.order'].check_access_rights('read', raise_exception=False) else 0
        return values

    def _purchase_order_get_page_view_values(self, order, access_token, **kwargs):
        #
        def resize_to_48(b64source):
            if not b64source:
                b64source = base64.b64encode(Binary.placeholder())
            return image_process(b64source, size=(48, 48))

        values = {
            'order': order,
            'resize_to_48': resize_to_48,
        }
        return self._get_page_view_values(order, access_token, values, 'my_purchases_history', False, **kwargs)

    @http.route(['/my/purchase', '/my/purchase/page/<int:page>'], type='http', auth="user", website=True)
    def portal_my_purchase_orders(self, page=1, date_begin=None, date_end=None, sortby=None, filterby=None, **kw):
        values = self._prepare_portal_layout_values()
        PurchaseOrder = request.env['purchase.order']

        domain = []

        if date_begin and date_end:
            domain += [('create_date', '>', date_begin), ('create_date', '<=', date_end)]

        searchbar_sortings = {
            'date': {'label': _('Newest'), 'order': 'create_date desc, id desc'},
            'name': {'label': _('Name'), 'order': 'name asc, id asc'},
            'amount_total': {'label': _('Total'), 'order': 'amount_total desc, id desc'},
        }
        # default sort by value
        if not sortby:
            sortby = 'date'
        order = searchbar_sortings[sortby]['order']

        searchbar_filters = {
            'all': {'label': _('All'), 'domain': [('state', 'in', ['purchase', 'done', 'cancel'])]},
            'purchase': {'label': _('Purchase Order'), 'domain': [('state', '=', 'purchase')]},
            'cancel': {'label': _('Cancelled'), 'domain': [('state', '=', 'cancel')]},
            'done': {'label': _('Locked'), 'domain': [('state', '=', 'done')]},
        }
        # default filter by value
        if not filterby:
            filterby = 'all'
        domain += searchbar_filters[filterby]['domain']

        # count for pager
        purchase_count = PurchaseOrder.search_count(domain)
        # make pager
        pager = portal_pager(
            url="/my/purchase",
            url_args={'date_begin': date_begin, 'date_end': date_end, 'sortby': sortby, 'filterby': filterby},
            total=purchase_count,
            page=page,
            step=self._items_per_page
        )
        # search the purchase orders to display, according to the pager data
        orders = PurchaseOrder.search(
            domain,
            order=order,
            limit=self._items_per_page,
            offset=pager['offset']
        )
        request.session['my_purchases_history'] = orders.ids[:100]

        values.update({
            'date': date_begin,
            'orders': orders,
            'page_name': 'purchase',
            'pager': pager,
            'searchbar_sortings': searchbar_sortings,
            'sortby': sortby,
            'searchbar_filters': OrderedDict(sorted(searchbar_filters.items())),
            'filterby': filterby,
            'default_url': '/my/purchase',
        })
        return request.render("purchase.portal_my_purchase_orders", values)

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

        report_type = kw.get('report_type')
        if report_type in ('html', 'pdf', 'text'):
            return self._show_report(model=order_sudo, report_type=report_type, report_ref='purchase.action_report_purchase_order', download=kw.get('download'))

        confirm_type = kw.get('confirm')
        if confirm_type == 'reminder':
            order_sudo.confirm_reminder_mail(kw.get('confirmed_date'))
        if confirm_type == 'reception':
            order_sudo._confirm_reception_mail()

        values = self._purchase_order_get_page_view_values(order_sudo, access_token, **kw)
        update_date = kw.get('update')
        if order_sudo.company_id:
            values['res_company'] = order_sudo.company_id
        if update_date == 'True':
            return request.render("purchase.portal_my_purchase_order_update_date", values)
        return request.render("purchase.portal_my_purchase_order", values)

    @http.route(['/my/purchase/<int:order_id>/update'], type='http', methods=['POST'], auth="public", website=True)
    def portal_my_purchase_order_update_dates(self, order_id=None, access_token=None, **kw):
        """User update scheduled date on purchase order line.
        """
        try:
            order_sudo = self._document_check_access('purchase.order', order_id, access_token=access_token)
        except (AccessError, MissingError):
            return request.redirect('/my')

        updated_dates = []
        for id_str, date_str in kw.items():
            try:
                line_id = int(id_str)
            except ValueError:
                return request.redirect(order_sudo.get_portal_url())
            line = order_sudo.order_line.filtered(lambda l: l.id == line_id)
            if not line:
                return request.redirect(order_sudo.get_portal_url())

            try:
                updated_date = line._convert_to_middle_of_day(datetime.strptime(date_str, '%Y-%m-%d'))
            except ValueError:
                continue

            updated_dates.append((line, updated_date))

        if updated_dates:
            order_sudo._update_date_planned_for_lines(updated_dates)
        return Response(status=204)