# Copyright 2019 Eficent Business and IT Consulting Services S.L.
# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).

from odoo import api, fields, models


class MrpBom(models.Model):
    _inherit = "mrp.bom"

    code = fields.Char(
        track_visibility="onchange",
    )
    product_tmpl_id = fields.Many2one(
        track_visibility="always",
    )
    product_qty = fields.Float(
        track_visibility="onchange",
    )
    picking_type_id = fields.Many2one(
        track_visibility="onchange",
    )
    type = fields.Selection(
        track_visibility="onchange",
    )

    @api.multi
    def write(self, values):
        bom_line_ids = {}
        if 'bom_line_ids' in values:
            for bom in self:
                del_lines = []
                for line in values['bom_line_ids']:
                    if line[0] == 2:
                        del_lines.append(line[1])
                if del_lines:
                    bom.message_post_with_view(
                        'mrp_bom_tracking.track_bom_template',
                        values={
                            'lines': self.env["mrp.bom.line"].browse(
                                del_lines),
                            'mode': 'Removed',
                        },
                        subtype_id=self.env.ref('mail.mt_note').id,
                    )
                bom_line_ids[bom.id] = bom.bom_line_ids
        res = super(MrpBom, self).write(values)
        if 'bom_line_ids' in values:
            for bom in self:
                new_lines = bom.bom_line_ids - bom_line_ids[bom.id]
                if new_lines:
                    bom.message_post_with_view(
                        'mrp_bom_tracking.track_bom_template',
                        values={
                            'lines': new_lines,
                            'mode': 'New',
                        },
                        subtype_id=self.env.ref('mail.mt_note').id,
                    )
        return res


class MrpBomLine(models.Model):
    _inherit = "mrp.bom.line"

    @api.multi
    def write(self, values):
        if 'product_id' in values:
            for bom in self.mapped('bom_id'):
                lines = self.filtered(lambda l: l.bom_id == bom)
                product_id = values.get('product_id')
                if product_id:
                    product_id = self.env["product.product"].browse(
                        product_id)
                product_id = product_id or lines.product_id
                if lines:
                    bom.message_post_with_view(
                        'mrp_bom_tracking.track_bom_template_2',
                        values={
                            'lines': lines,
                            'product_id': product_id,
                        },
                        subtype_id=self.env.ref('mail.mt_note').id,
                    )
        elif 'product_qty' in values or 'product_uom_id' in values:
            for bom in self.mapped('bom_id'):
                lines = self.filtered(lambda l: l.bom_id == bom)
                if lines:
                    product_qty = values.get(
                        'product_qty') or lines.product_qty
                    product_uom_id = values.get('product_uom_id')
                    if product_uom_id:
                        product_uom_id = self.env["product.uom"].browse(
                            product_uom_id)
                    product_uom_id = product_uom_id or lines.product_uom_id
                    bom.message_post_with_view(
                        'mrp_bom_tracking.track_bom_line_template',
                        values={
                            'lines': lines,
                            'product_qty': product_qty,
                            'product_uom_id': product_uom_id,
                        },
                        subtype_id=self.env.ref('mail.mt_note').id,
                    )
        return super(MrpBomLine, self).write(values)