eiru_pos/controllers/account_invoice.py

# -*- coding: utf-8 -*-
from openerp.http import request
from openerp.tools import DEFAULT_SERVER_DATE_FORMAT, float_round
from dateutil.parser import parse
from dateutil.relativedelta import relativedelta as rd

_MODEL = 'account.invoice'


def create_invoice(sale_order_id, currency_id, date_today, picking_done=True):
    sale_order = request.env['sale.order'].browse(sale_order_id)
    invoice_id = sale_order.action_invoice_create()
    invoice = request.env[_MODEL].browse(invoice_id)

    for picking in sale_order.picking_ids:
        picking.force_assign()
        if picking_done:
            picking.action_done()

    date_due = parse(date_today) + rd(days=max(invoice.payment_term.line_ids.mapped(lambda x: x.days + x.days2)))

    invoice.write({
        'currency_id': currency_id,
        'date_invoice': date_today,
        'date_due': date_due.strftime(DEFAULT_SERVER_DATE_FORMAT),
        'state': 'open'
    })

    return invoice


def create_invoice_move_lines(invoice_id, paid_amount, date_today):
    invoice = request.env[_MODEL].browse(invoice_id)
    context = dict(request.context, lang=invoice.partner_id.lang)

    invoice_move_lines = invoice._get_analytic_lines()
    decimal_precision = request.env['decimal.precision'].precision_get('Account')

    compute_taxes = request.env['account.invoice.tax'].compute(invoice.with_context(context))
    invoice.check_tax_lines(compute_taxes)
    invoice._recompute_tax_amount()

    invoice_move_lines += request.env['account.invoice.tax'].move_line_get(invoice.id)
    total, total_currency, invoice_move_lines = invoice.with_context(context).compute_invoice_totals(invoice.company_id.currency_id, invoice.reference, invoice_move_lines)

    paid_amount = float_round(paid_amount, precision_digits=decimal_precision)
    paid_percentage = paid_amount / float_round(total_currency, precision_digits=decimal_precision)
    distributed_percentage = -(paid_percentage / len(invoice.payment_term.line_ids))

    diff_currency = invoice.currency_id != invoice.company_id.currency_id

    if diff_currency:
        paid_amount = invoice.currency_id.compute(paid_amount, invoice.company_id.currency_id)
    
    payment_lines = []

    for line in invoice.payment_term.line_ids:
        date_due = (parse(date_today) + rd(days=line.days + line.days2)).strftime(DEFAULT_SERVER_DATE_FORMAT)

        if paid_percentage and paid_percentage < 1.0:
            payment_lines.append([date_today, paid_percentage])
            paid_percentage = paid_amount = 0

            if date_due == date_today and line.value_amount:
                distributed_percentage = -((payment_lines[0][1] - line.value_amount)  / (len(invoice.payment_term.line_ids) - 1))
                continue
        
        if line.value != 'balance':
            payment_lines.append([date_due, line.value_amount + distributed_percentage])
            continue

        payment_lines.append([date_due, line.value_amount])

        for payment_line in payment_lines:
            current_price = float_round(total * payment_line[1], precision_digits=decimal_precision)

            if current_price < 0.0:
                continue

            paid_amount += current_price

            # Compute move line price
            if payment_line[1]:
                price = current_price
            else:
                price = float_round(total - paid_amount, precision_digits=decimal_precision) or total

            # Compute move line amount in currency
            if diff_currency:
                amount_currency = invoice.company_id.currency_id.with_context(context).compute(price, invoice.currency_id)
            else:
                amount_currency = False

            # Create invoice move live value
            invoice_move_lines.append({
                'type': 'dest',
                'name': '/',
                'price': price,
                'account_id': invoice.account_id.id,
                'date_maturity': payment_line[0],
                'amount_currency': amount_currency,
                'currency_id': diff_currency and invoice.currency_id.id,
                'ref': invoice.reference
            })
            
        payment_lines = []

    return invoice_move_lines


def number_invoice(invoice_id):
    request.env[_MODEL].browse(invoice_id).action_number()


def close_invoice(invoice_id):
    invoice = request.env[_MODEL].browse(invoice_id)

    if invoice.residual == 0:
        invoice.write({
            'state': 'paid'
        })