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

import logging

from odoo import api, models, fields
from odoo.addons.phone_validation.tools import phone_validation
from odoo.tools import html2plaintext, plaintext2html

_logger = logging.getLogger(__name__)


class MailThread(models.AbstractModel):
    _inherit = 'mail.thread'

    message_has_sms_error = fields.Boolean(
        'SMS Delivery error', compute='_compute_message_has_sms_error', search='_search_message_has_sms_error',
        help="If checked, some messages have a delivery error.")

    def _compute_message_has_sms_error(self):
        res = {}
        if self.ids:
            self._cr.execute(""" SELECT msg.res_id, COUNT(msg.res_id) FROM mail_message msg
                                 RIGHT JOIN mail_message_res_partner_needaction_rel rel
                                 ON rel.mail_message_id = msg.id AND rel.notification_type = 'sms' AND rel.notification_status in ('exception')
                                 WHERE msg.author_id = %s AND msg.model = %s AND msg.res_id in %s AND msg.message_type != 'user_notification'
                                 GROUP BY msg.res_id""",
                             (self.env.user.partner_id.id, self._name, tuple(self.ids),))
            res.update(self._cr.fetchall())

        for record in self:
            record.message_has_sms_error = bool(res.get(record._origin.id, 0))

    @api.model
    def _search_message_has_sms_error(self, operator, operand):
        return ['&', ('message_ids.has_sms_error', operator, operand), ('message_ids.author_id', '=', self.env.user.partner_id.id)]

    def _sms_get_partner_fields(self):
        """ This method returns the fields to use to find the contact to link
        whensending an SMS. Having partner is not necessary, having only phone
        number fields is possible. However it gives more flexibility to
        notifications management when having partners. """
        fields = []
        if hasattr(self, 'partner_id'):
            fields.append('partner_id')
        if hasattr(self, 'partner_ids'):
            fields.append('partner_ids')
        return fields

    def _sms_get_default_partners(self):
        """ This method will likely need to be overridden by inherited models.
               :returns partners: recordset of res.partner
        """
        partners = self.env['res.partner']
        for fname in self._sms_get_partner_fields():
            partners |= self.mapped(fname)
        return partners

    def _sms_get_number_fields(self):
        """ This method returns the fields to use to find the number to use to
        send an SMS on a record. """
        return ['mobile']

    def _sms_get_recipients_info(self, force_field=False, partner_fallback=True):
        """" Get SMS recipient information on current record set. This method
        checks for numbers and sanitation in order to centralize computation.

        Example of use cases

          * click on a field -> number is actually forced from field, find customer
            linked to record, force its number to field or fallback on customer fields;
          * contact -> find numbers from all possible phone fields on record, find
            customer, force its number to found field number or fallback on customer fields;

        :param force_field: either give a specific field to find phone number, either
            generic heuristic is used to find one based on ``_sms_get_number_fields``;
        :param partner_fallback: if no value found in the record, check its customer
            values based on ``_sms_get_default_partners``;

        :return dict: record.id: {
            'partner': a res.partner recordset that is the customer (void or singleton)
                linked to the recipient. See ``_sms_get_default_partners``;
            'sanitized': sanitized number to use (coming from record's field or partner's
                phone fields). Set to False is number impossible to parse and format;
            'number': original number before sanitation;
            'partner_store': whether the number comes from the customer phone fields. If
                False it means number comes from the record itself, even if linked to a
                customer;
            'field_store': field in which the number has been found (generally mobile or
                phone, see ``_sms_get_number_fields``);
        } for each record in self
        """
        result = dict.fromkeys(self.ids, False)
        tocheck_fields = [force_field] if force_field else self._sms_get_number_fields()
        for record in self:
            all_numbers = [record[fname] for fname in tocheck_fields if fname in record]
            all_partners = record._sms_get_default_partners()

            valid_number = False
            for fname in [f for f in tocheck_fields if f in record]:
                valid_number = phone_validation.phone_sanitize_numbers_w_record([record[fname]], record)[record[fname]]['sanitized']
                if valid_number:
                    break

            if valid_number:
                result[record.id] = {
                    'partner': all_partners[0] if all_partners else self.env['res.partner'],
                    'sanitized': valid_number,
                    'number': record[fname],
                    'partner_store': False,
                    'field_store': fname,
                }
            elif all_partners and partner_fallback:
                partner = self.env['res.partner']
                for partner in all_partners:
                    for fname in self.env['res.partner']._sms_get_number_fields():
                        valid_number = phone_validation.phone_sanitize_numbers_w_record([partner[fname]], record)[partner[fname]]['sanitized']
                        if valid_number:
                            break

                if not valid_number:
                    fname = 'mobile' if partner.mobile else ('phone' if partner.phone else 'mobile')

                result[record.id] = {
                    'partner': partner,
                    'sanitized': valid_number if valid_number else False,
                    'number': partner[fname],
                    'partner_store': True,
                    'field_store': fname,
                }
            else:
                # did not find any sanitized number -> take first set value as fallback;
                # if none, just assign False to the first available number field
                value, fname = next(
                    ((value, fname) for value, fname in zip(all_numbers, tocheck_fields) if value),
                    (False, tocheck_fields[0] if tocheck_fields else False)
                )
                result[record.id] = {
                    'partner': self.env['res.partner'],
                    'sanitized': False,
                    'number': value,
                    'partner_store': False,
                    'field_store': fname
                }
        return result

    def _message_sms_schedule_mass(self, body='', template=False, active_domain=None, **composer_values):
        """ Shortcut method to schedule a mass sms sending on a recordset.

        :param template: an optional sms.template record;
        :param active_domain: bypass self.ids and apply composer on active_domain
          instead;
        """
        composer_context = {
            'default_res_model': self._name,
            'default_composition_mode': 'mass',
            'default_template_id': template.id if template else False,
            'default_body': body if body and not template else False,
        }
        if active_domain is not None:
            composer_context['default_use_active_domain'] = True
            composer_context['default_active_domain'] = repr(active_domain)
        else:
            composer_context['default_res_ids'] = self.ids

        create_vals = {
            'mass_force_send': False,
            'mass_keep_log': True,
        }
        if composer_values:
            create_vals.update(composer_values)

        composer = self.env['sms.composer'].with_context(**composer_context).create(create_vals)
        return composer._action_send_sms()

    def _message_sms_with_template(self, template=False, template_xmlid=False, template_fallback='', partner_ids=False, **kwargs):
        """ Shortcut method to perform a _message_sms with an sms.template.

        :param template: a valid sms.template record;
        :param template_xmlid: XML ID of an sms.template (if no template given);
        :param template_fallback: plaintext (jinja-enabled) in case template
          and template xml id are falsy (for example due to deleted data);
        """
        self.ensure_one()
        if not template and template_xmlid:
            template = self.env.ref(template_xmlid, raise_if_not_found=False)
        if template:
            body = template._render_field('body', self.ids, compute_lang=True)[self.id]
        else:
            body = self.env['sms.template']._render_template(template_fallback, self._name, self.ids)[self.id]
        return self._message_sms(body, partner_ids=partner_ids, **kwargs)

    def _message_sms(self, body, subtype_id=False, partner_ids=False, number_field=False,
                     sms_numbers=None, sms_pid_to_number=None, **kwargs):
        """ Main method to post a message on a record using SMS-based notification
        method.

        :param body: content of SMS;
        :param subtype_id: mail.message.subtype used in mail.message associated
          to the sms notification process;
        :param partner_ids: if set is a record set of partners to notify;
        :param number_field: if set is a name of field to use on current record
          to compute a number to notify;
        :param sms_numbers: see ``_notify_record_by_sms``;
        :param sms_pid_to_number: see ``_notify_record_by_sms``;
        """
        self.ensure_one()
        sms_pid_to_number = sms_pid_to_number if sms_pid_to_number is not None else {}

        if number_field or (partner_ids is False and sms_numbers is None):
            info = self._sms_get_recipients_info(force_field=number_field)[self.id]
            info_partner_ids = info['partner'].ids if info['partner'] else False
            info_number = info['sanitized'] if info['sanitized'] else info['number']
            if info_partner_ids and info_number:
                sms_pid_to_number[info_partner_ids[0]] = info_number
            if info_partner_ids:
                partner_ids = info_partner_ids + (partner_ids or [])
            if not info_partner_ids:
                if info_number:
                    sms_numbers = [info_number] + (sms_numbers or [])
                    # will send a falsy notification allowing to fix it through SMS wizards
                elif not sms_numbers:
                    sms_numbers = [False]

        if subtype_id is False:
            subtype_id = self.env['ir.model.data'].xmlid_to_res_id('mail.mt_note')

        return self.message_post(
            body=plaintext2html(html2plaintext(body)), partner_ids=partner_ids or [],  # TDE FIXME: temp fix otherwise crash mail_thread.py
            message_type='sms', subtype_id=subtype_id,
            sms_numbers=sms_numbers, sms_pid_to_number=sms_pid_to_number,
            **kwargs
        )

    def _notify_thread(self, message, msg_vals=False, **kwargs):
        recipients_data = super(MailThread, self)._notify_thread(message, msg_vals=msg_vals, **kwargs)
        self._notify_record_by_sms(message, recipients_data, msg_vals=msg_vals, **kwargs)
        return recipients_data

    def _notify_record_by_sms(self, message, recipients_data, msg_vals=False,
                              sms_numbers=None, sms_pid_to_number=None,
                              check_existing=False, put_in_queue=False, **kwargs):
        """ Notification method: by SMS.

        :param message: mail.message record to notify;
        :param recipients_data: see ``_notify_thread``;
        :param msg_vals: see ``_notify_thread``;

        :param sms_numbers: additional numbers to notify in addition to partners
          and classic recipients;
        :param pid_to_number: force a number to notify for a given partner ID
              instead of taking its mobile / phone number;
        :param check_existing: check for existing notifications to update based on
          mailed recipient, otherwise create new notifications;
        :param put_in_queue: use cron to send queued SMS instead of sending them
          directly;
        """
        sms_pid_to_number = sms_pid_to_number if sms_pid_to_number is not None else {}
        sms_numbers = sms_numbers if sms_numbers is not None else []
        sms_create_vals = []
        sms_all = self.env['sms.sms'].sudo()

        # pre-compute SMS data
        body = msg_vals['body'] if msg_vals and msg_vals.get('body') else message.body
        sms_base_vals = {
            'body': html2plaintext(body),
            'mail_message_id': message.id,
            'state': 'outgoing',
        }

        # notify from computed recipients_data (followers, specific recipients)
        partners_data = [r for r in recipients_data['partners'] if r['notif'] == 'sms']
        partner_ids = [r['id'] for r in partners_data]
        if partner_ids:
            for partner in self.env['res.partner'].sudo().browse(partner_ids):
                number = sms_pid_to_number.get(partner.id) or partner.mobile or partner.phone
                sanitize_res = phone_validation.phone_sanitize_numbers_w_record([number], partner)[number]
                number = sanitize_res['sanitized'] or number
                sms_create_vals.append(dict(
                    sms_base_vals,
                    partner_id=partner.id,
                    number=number
                ))

        # notify from additional numbers
        if sms_numbers:
            sanitized = phone_validation.phone_sanitize_numbers_w_record(sms_numbers, self)
            tocreate_numbers = [
                value['sanitized'] or original
                for original, value in sanitized.items()
            ]
            sms_create_vals += [dict(
                sms_base_vals,
                partner_id=False,
                number=n,
                state='outgoing' if n else 'error',
                error_code='' if n else 'sms_number_missing',
            ) for n in tocreate_numbers]

        # create sms and notification
        existing_pids, existing_numbers = [], []
        if sms_create_vals:
            sms_all |= self.env['sms.sms'].sudo().create(sms_create_vals)

            if check_existing:
                existing = self.env['mail.notification'].sudo().search([
                    '|', ('res_partner_id', 'in', partner_ids),
                    '&', ('res_partner_id', '=', False), ('sms_number', 'in', sms_numbers),
                    ('notification_type', '=', 'sms'),
                    ('mail_message_id', '=', message.id)
                ])
                for n in existing:
                    if n.res_partner_id.id in partner_ids and n.mail_message_id == message:
                        existing_pids.append(n.res_partner_id.id)
                    if not n.res_partner_id and n.sms_number in sms_numbers and n.mail_message_id == message:
                        existing_numbers.append(n.sms_number)

            notif_create_values = [{
                'mail_message_id': message.id,
                'res_partner_id': sms.partner_id.id,
                'sms_number': sms.number,
                'notification_type': 'sms',
                'sms_id': sms.id,
                'is_read': True,  # discard Inbox notification
                'notification_status': 'ready' if sms.state == 'outgoing' else 'exception',
                'failure_type': '' if sms.state == 'outgoing' else sms.error_code,
            } for sms in sms_all if (sms.partner_id and sms.partner_id.id not in existing_pids) or (not sms.partner_id and sms.number not in existing_numbers)]
            if notif_create_values:
                self.env['mail.notification'].sudo().create(notif_create_values)

            if existing_pids or existing_numbers:
                for sms in sms_all:
                    notif = next((n for n in existing if
                                 (n.res_partner_id.id in existing_pids and n.res_partner_id.id == sms.partner_id.id) or
                                 (not n.res_partner_id and n.sms_number in existing_numbers and n.sms_number == sms.number)), False)
                    if notif:
                        notif.write({
                            'notification_type': 'sms',
                            'notification_status': 'ready',
                            'sms_id': sms.id,
                            'sms_number': sms.number,
                        })

        if sms_all and not put_in_queue:
            sms_all.filtered(lambda sms: sms.state == 'outgoing').send(auto_commit=False, raise_exception=False)

        return True
