# Part of Odoo. See LICENSE file for full copyright and licensing details.

from odoo import models, api, fields
from odoo.tools.sql import column_exists, create_column


class AccountMoveLine(models.Model):

    _inherit = 'account.move.line'

    def _auto_init(self):
        # Skip the computation of the field `l10n_latam_document_type_id` at the module installation
        # See `_auto_init` in `l10n_latam_invoice_document/models/account_move.py` for more information
        if not column_exists(self.env.cr, "account_move_line", "l10n_latam_document_type_id"):
            create_column(self.env.cr, "account_move_line", "l10n_latam_document_type_id", "int4")
        return super()._auto_init()

    l10n_latam_document_type_id = fields.Many2one(
        related='move_id.l10n_latam_document_type_id', auto_join=True, store=True, index=True)
    l10n_latam_price_unit = fields.Float(compute='compute_l10n_latam_prices_and_taxes', digits='Product Price')
    l10n_latam_price_subtotal = fields.Monetary(compute='compute_l10n_latam_prices_and_taxes')
    l10n_latam_price_net = fields.Float(compute='compute_l10n_latam_prices_and_taxes', digits='Product Price')
    l10n_latam_tax_ids = fields.One2many(compute="compute_l10n_latam_prices_and_taxes", comodel_name='account.tax')

    @api.depends('price_unit', 'price_subtotal', 'move_id.l10n_latam_document_type_id')
    def compute_l10n_latam_prices_and_taxes(self):
        for line in self:
            invoice = line.move_id
            included_taxes = \
                invoice.l10n_latam_document_type_id and invoice.l10n_latam_document_type_id._filter_taxes_included(
                    line.tax_ids)
            # For the unit price, we need the number rounded based on the product price precision.
            # The method compute_all uses the accuracy of the currency so, we multiply and divide for 10^(decimal accuracy of product price) to get the price correctly rounded.
            price_digits = 10**self.env['decimal.precision'].precision_get('Product Price')
            if not included_taxes:
                price_unit = line.tax_ids.with_context(round=False, force_sign=invoice._get_tax_force_sign()).compute_all(
                    line.price_unit * price_digits, invoice.currency_id, 1.0, line.product_id, invoice.partner_id)
                l10n_latam_price_unit = price_unit['total_excluded'] / price_digits
                l10n_latam_price_subtotal = line.price_subtotal
                not_included_taxes = line.tax_ids
                l10n_latam_price_net = l10n_latam_price_unit * (1 - (line.discount or 0.0) / 100.0)
            else:
                not_included_taxes = line.tax_ids - included_taxes
                l10n_latam_price_unit = included_taxes.with_context(force_sign=invoice._get_tax_force_sign()).compute_all(
                    line.price_unit * price_digits, invoice.currency_id, 1.0, line.product_id, invoice.partner_id)['total_included'] / price_digits
                l10n_latam_price_net = l10n_latam_price_unit * (1 - (line.discount or 0.0) / 100.0)
                price = line.price_unit * (1 - (line.discount or 0.0) / 100.0)
                l10n_latam_price_subtotal = included_taxes.with_context(force_sign=invoice._get_tax_force_sign()).compute_all(
                    price, invoice.currency_id, line.quantity, line.product_id,
                    invoice.partner_id)['total_included']

            line.l10n_latam_price_subtotal = l10n_latam_price_subtotal
            line.l10n_latam_price_unit = l10n_latam_price_unit
            line.l10n_latam_price_net = l10n_latam_price_net
            line.l10n_latam_tax_ids = not_included_taxes