# -*- coding: utf-8 -*-
#############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2021-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Cybrosys Techno Solutions(<https://www.cybrosys.com>)
#
#    You can modify it under the terms of the GNU LESSER
#    GENERAL PUBLIC LICENSE (LGPL v3), Version 3.
#
#    This program 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 (LGPL v3) for more details.
#
#    You should have received a copy of the GNU LESSER GENERAL PUBLIC LICENSE
#    (LGPL v3) along with this program.
#    If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################

from odoo import models, fields, _
from odoo.exceptions import UserError, ValidationError


class AccountMove(models.Model):
    _inherit = "account.move"

    state = fields.Selection(
        selection_add=[('waiting_approval', 'Waiting For Approval'),
                       ('approved', 'Approved'),
                       ('rejected', 'Rejected')],
        ondelete={'waiting_approval': 'set default', 'approved': 'set default', 'rejected': 'set default'})


class AccountPayment(models.Model):
    _inherit = "account.payment"
    _inherits = {'account.move': 'move_id'}

    def _check_is_approver(self):
        approval = self.env['ir.config_parameter'].sudo().get_param(
            'account_payment_approval.payment_approval')
        approver_id = int(self.env['ir.config_parameter'].sudo().get_param(
            'account_payment_approval.approval_user_id'))
        self.is_approver = True if self.env.user.id == approver_id and approval else False

    is_approver = fields.Boolean(compute=_check_is_approver, readonly=True)

    def action_post(self):
        """Overwrites the _post() to validate the payment in the 'approved' stage too.
        Currently Odoo allows payment posting only in draft stage.
        """
        validation = self._check_payment_approval()
        if validation:
            if self.state == ('posted', 'cancel', 'waiting_approval', 'rejected'):
                raise UserError(_("Only a draft or approved payment can be posted."))
            if any(inv.state != 'posted' for inv in self.reconciled_invoice_ids):
                raise ValidationError(_("The payment cannot be processed because the invoice is not open!"))
            self.move_id._post(soft=False)

    def _check_payment_approval(self):
        if self.state == "draft":
            first_approval = self.env['ir.config_parameter'].sudo().get_param(
                'account_payment_approval.payment_approval')
            if first_approval:
                amount = float(self.env['ir.config_parameter'].sudo().get_param(
                    'account_payment_approval.approval_amount'))
                payment_currency_id = int(self.env['ir.config_parameter'].sudo().get_param(
                    'account_payment_approval.approval_currency_id'))
                payment_amount = self.amount
                if payment_currency_id:
                    if self.currency_id and self.currency_id.id != payment_currency_id:
                        currency_id = self.env['res.currency'].browse(payment_currency_id)
                        payment_amount = self.currency_id._convert(
                            self.amount, currency_id, self.company_id,
                            self.date or fields.Date.today(), round=True)
                if payment_amount > amount:
                    self.write({
                        'state': 'waiting_approval'
                    })
                    return False
        return True

    def approve_transfer(self):
        if self.is_approver:
            self.write({
                'state': 'approved'
            })

    def reject_transfer(self):
        self.write({
            'state': 'rejected'
        })