from odoo import models, fields, api
from odoo.exceptions import UserError, ValidationError
from psycopg2 import sql, DatabaseError
from datetime import datetime

from werkzeug import utils
import base64


class DonationDonation(models.Model):
    _inherit = 'donation.donation'

    operation_id = fields.Many2one(
        'opendons.operation',
        string='Operation',
        track_visibility='onchange',
        ondelete='restrict',
        domain=[('state', '=', 'exported')]
        
    )
    # operation_state= fields.Char(related='operation_id.state')
    
    segment_id = fields.Many2one(
        'opendons.segment',
        string='Segment',
        track_visibility='onchange',
        ondelete='restrict'
        
    )
    
    end_date = fields.Date(
        string='End Date',
        index=True,
        readonly=True,
        track_visibility='onchange'
    )
    suspended_date = fields.Date(
        string='Suspended Date',
        index=True,
        readonly=True,
        track_visibility='onchange'
    )
    lastexecution_date = fields.Date(
        string='Last execution Date',
        index=True,
        readonly=True,
        track_visibility='onchange'
    )
    frequency =fields.Selection(
         [('monthly','Monthly'), ('bimonthly','Bimonthly'),('quarterly','Quarterly'),('half-yearly','Half-yearly'),('annually','Annually')],
         default='monthly'
         )
    
    

    @api.onchange('operation_id')
    def _onchange_operation_id(self):
        res = {}
        res['domain']={'segment_id':[('operation_id', '=', self.operation_id.id)]}
        return res

    # @api.onchange('start_date')
    # def _onchange_start_date(self):
    #     if self.start_date:
    #         self.donation_date=fields.Date.context_today(self)
    #     return True
    
    # payment_batch_id = fields.Many2one(
    #         'opendons_payment_batch',
    #         string='Payment Batch',
    #         ondelete='set null'
    #     )
    
    # def _compute_rum(self):
    #     for rec in self:
    #         rec.rum_direct_debit=''
            #if rec.recurring_template: rec.rum_direct_debit='GHGHH65767688899976'
            #rec.rum_direct_debit='GHGHH65767688899976'
    
class DonationRecurringGenerate(models.TransientModel):
    _inherit = 'donation.recurring.generate'

    
    def generate(self):
        self.ensure_one()
        doo = self.env["donation.donation"]
        donations = doo.search(
            [
                ("recurring_template", "=", "active"),
                ("company_id", "=", self.company_id.id),
            ]
        )
        new_donation_ids = []

        

        for donation in donations:
            generate=True
            existing_recur_donations = doo.search([("source_recurring_id", "=",int(donation.id))])
            
            if donation.donation_date>fields.Date.context_today(self):
                generate=False
                
            delta=0
            if donation.frequency=='annually':delta=365
            if donation.frequency=='half-yearly':delta=365/2
            if donation.frequency=='quarterly':delta=365/4
            if donation.frequency=='bimonthly':delta=365/6
            if donation.frequency=='monthly':delta=365/12
            
            if existing_recur_donations:
                for d in existing_recur_donations:
                    days_diff=(d.donation_date-fields.Date.context_today(self)).days
                    if days_diff<=delta: 
                        generate=False
                        break
            
            
            if generate==True:
                default = {
                    "recurring_template":'',
                    "donation_date": fields.Date.context_today(self),
                    "source_recurring_id": donation.id,
                    "payment_ref": '',
                    "payment_mode_id":donation.payment_mode_id.id,
                    "mandate_required":'True',
                    "mandate_id":donation.mandate_id.id,
                }
                
                new_donation = donation.copy(default=default)
                new_donation_ids.append(new_donation.id)
        
        
        action = self.env.ref("donation.donation_action").sudo().read([])[0]
        action.update(
            {
                "domain": [("id", "in", new_donation_ids)],
                "limit": 500,
            }
        )

        return action