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

from odoo import api, fields, models, _
from datetime import timedelta


class FollowupLine(models.Model):
    _name = 'account_followup.followup.line'
    _description = 'Follow-up Criteria'
    _order = 'delay asc'

    name = fields.Char('Description', required=True, translate=True)
    delay = fields.Integer('Due Days', required=True,
                           help="The number of days after the due date of the invoice to wait before sending the reminder. "
                                "Can be negative if you want to send the reminder before the invoice due date.")
    company_id = fields.Many2one('res.company', 'Company', required=True, default=lambda self: self.env.company)

    mail_template_id = fields.Many2one(comodel_name='mail.template')
    send_email = fields.Boolean('Send Email', default=True)
    join_invoices = fields.Boolean(string="Attach Invoices", default=True)

    sms_template_id = fields.Many2one(comodel_name='sms.template')
    send_sms = fields.Boolean('Send SMS Message')

    create_activity = fields.Boolean(string='Schedule Activity')
    activity_summary = fields.Char(string='Summary')
    activity_note = fields.Text(string='Note')
    activity_type_id = fields.Many2one(comodel_name='mail.activity.type', string='Activity Type', default=False)
    activity_default_responsible_type = fields.Selection([('followup', 'Follow-up Responsible'), ('salesperson', 'Salesperson'), ('account_manager', 'Account Manager')],
                                                         string='Responsible', default='followup', required=True,
                                                         help="Determine who will be assigned to the activity:\n"
                                                              "- Follow-up Responsible (default)\n"
                                                              "- Salesperson: Sales Person defined on the invoice\n"
                                                              "- Account Manager: Sales Person defined on the customer")

    auto_execute = fields.Boolean(string="Automatic", default=True)

    _sql_constraints = [
        ('days_uniq', 'unique(company_id, delay)', 'Days of the follow-up lines must be different per company'),
        ('uniq_name', 'unique(company_id, name)', 'A follow-up action name must be unique. This name is already set to another action.'),
    ]

    def copy(self, default=None):
        default = default or {}
        if not default.get('name'):
            default['name'] = _("%s (copy)", self.name)
        if 'delay' not in default:
            company_id = default.get('company_id', self.company_id.id)
            highest_delay = self.search([('company_id', '=', company_id)], order='delay desc', limit=1).delay
            default['delay'] = highest_delay + 15
        return super().copy(default=default)

    @api.onchange('auto_execute')
    def _onchange_auto_execute(self):
        if self.auto_execute:
            self.create_activity = False

    def _get_next_date(self):
        self.ensure_one()
        next_followup = self._get_next_followup()
        if next_followup:
            delay = next_followup.delay - self.delay
        else:
            delay = 14
        return fields.Date.today() + timedelta(days=delay)

    def _get_next_followup(self):
        self.ensure_one()
        return self.env['account_followup.followup.line'].search([('delay', '>', self.delay), ('company_id', '=', self.env.company.id)], order="delay asc", limit=1)