from odoo import models, fields, api, _, tools
from datetime import date, datetime, timedelta
from dateutil.relativedelta import relativedelta
from odoo.exceptions import ValidationError

class WzLedgerBankAndCash(models.TransientModel):
    _name = 'wz.ledger.bank.and.cash'
    _description = 'Wizard Bank and Cash Report'
    
    def default_user_type(self):
        return self.env['account.account.type'].sudo().search([('name', '=', 'Bank and Cash')], limit=1)
    
    date_from = fields.Date("From Date")
    date_to = fields.Date("To Date")
    account_ids = fields.Many2many('account.account', string='Account')
    user_type_id = fields.Many2one('account.account.type', string='User Type', default=lambda self:self.default_user_type())

    @api.constrains("date_from", "date_to")
    def _check_filtered(self):
        for rec in self:
            if rec.date_from > rec.date_to:
                raise ValidationError(_("Invalid Date ! End date should be greater than the start date"))
    
    def generate(self):
        tools.drop_view_if_exists(self.env.cr, 'snk_bank_and_cash_report')
        company = self.env['res.company'].browse(1)
        currency_id = company.currency_id.id

        self.env.cr.execute("""
            CREATE OR REPLACE VIEW snk_bank_and_cash_report AS (

                select 
                    ROW_NUMBER () OVER () as id,
                    'Begining Balance' as description,
                    null as partner_id,
                    null as account_id,
                    {currency_id} as currency_id,
                    max(acm.date) as date,
                    sum(acm.debit) as debit,
                    sum(acm.credit) as credit,
                    sum(acm.debit - acm.credit) as balance 
                    from account_move_line acm left join account_journal aj on acm.journal_id = aj.id  
                    where date < '{start_date}' and aj.type in ('bank', 'cash')

                union all
                select 
                    ROW_NUMBER () OVER () + 1 as id,
                    acm.name as description,
                    null as partner_id,
                    acm.account_id,
                    {currency_id} as currency_id,
                    acm.date,
                    acm.debit,
                    acm.credit,acm.balance 
                    from account_move_line acm left join account_journal aj on acm.journal_id = aj.id  
                    where date between '{start_date}' and '{end_date}' and aj.type in ('bank', 'cash')
                )""".format(start_date=self.date_from,end_date=self.date_to, currency_id=currency_id))

        return {
            'name': _('Sillo Report Bank and Cash'),
            'type': 'ir.actions.act_window',
            'view_mode': 'tree',
            'res_model': 'snk.bank.and.cash.report',
            'views': [(False, 'tree')],
            'target': False
        }


        # beginning_balance = 0
        # balance = 0
        # total_balance = 0
        # start = self.date_from
        # end = self.date_to
        # move_line = self.env['account.move.line'].search([('date', '>=', start), ('date', '<=', end),('account_id', 'in', self.account_ids.ids), ('move_id.state', '=', 'posted')])
        # bank_cash = self.env['ledger.bank.and.cash']
        # move_line2 = self.env['account.move.line'].search([('date', '<=', start), ('account_id', 'in', self.account_ids.ids), ('move_id.state', '=', 'posted')])
        # self.env.cr.execute("""
        #     delete from ledger_bank_and_cash
        # """)
        # if move_line:
        #     no = 1
        #     mv_line_sorted = sorted(move_line, key=lambda x: x["date"])
        #     for account in self.account_ids:
        #         for rec in mv_line_sorted:
        #             if rec.account_id.id == account.id:
        #                 beginning_balance = sum(move_line2.filtered(lambda x : x.account_id.id == rec.account_id.id).mapped('balance'))
        #                 if no == 1:
        #                     balance = beginning_balance + (rec.debit - rec.credit)
        #                     total_balance = balance
        #                 else:
        #                     total_balance += rec.balance
        #                 bank_cash.create({
        #                     'date': rec.date,
        #                     'account_id': rec.account_id.id,
        #                     'move_id': rec.move_id.id,
        #                     'partner_id': rec.partner_id.id,
        #                     'currency_id': rec.currency_id.id,
        #                     'beginning_balance': beginning_balance,
        #                     'balance': total_balance,
        #                     'debit': rec.debit,
        #                     'credit': rec.credit,
        #                 })
        #                 no += 1
        #         no = 1
        #     if bank_cash:
        #         bank_cash.sorted(key=lambda r: (r.date, r.account_id))
        # return {
        #     'name': _("Cash and Bank Book Period %s s/d %s" %(self.date_from.strftime("%d-%m-%Y"), self.date_to.strftime("%d-%m-%Y"))),
        #     'view_mode': 'list',
        #     'view_id': self.env.ref('snk_accounting_report.accounting_report_ledger_bank_and_cash_view_tree').id,
        #     'res_model': 'ledger.bank.and.cash',
        #     'type': 'ir.actions.act_window',
        #     'context': {
        #         'group_by': ['account_id'],
        #     }
        # }