# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
from ast import literal_eval
from collections import defaultdict

from odoo import fields, models, _
from odoo.tools import float_round


class MrpProduction(models.Model):
    _inherit = 'mrp.production'

    extra_cost = fields.Float(copy=False, string='Extra Unit Cost')
    show_valuation = fields.Boolean(compute='_compute_show_valuation')

    def _compute_show_valuation(self):
        for order in self:
            order.show_valuation = any(m.state == 'done' for m in order.move_finished_ids)

    def write(self, vals):
        res = super().write(vals)
        for production in self:
            if vals.get('name'):
                production.move_raw_ids.analytic_account_line_ids.ref = production.display_name
                for workorder in production.workorder_ids:
                    workorder.mo_analytic_account_line_ids.ref = production.display_name
                    workorder.mo_analytic_account_line_ids.name = _("[WC] %s", workorder.display_name)
        return res

    def action_view_stock_valuation_layers(self):
        self.ensure_one()
        domain = [('id', 'in', (self.move_raw_ids + self.move_finished_ids + self.scrap_ids.move_ids).stock_valuation_layer_ids.ids)]
        action = self.env["ir.actions.actions"]._for_xml_id("stock_account.stock_valuation_layer_action")
        context = literal_eval(action['context'])
        context.update(self.env.context)
        context['no_at_date'] = True
        context['search_default_group_by_product_id'] = False
        return dict(action, domain=domain, context=context)

    def _cal_price(self, consumed_moves):
        """Set a price unit on the finished move according to `consumed_moves`.
        """
        super(MrpProduction, self)._cal_price(consumed_moves)
        work_center_cost = 0
        finished_move = self.move_finished_ids.filtered(
            lambda x: x.product_id == self.product_id and x.state not in ('done', 'cancel') and x.quantity > 0)
        if finished_move:
            finished_move.ensure_one()
            for work_order in self.workorder_ids:
                work_center_cost += work_order._cal_cost()
            quantity = finished_move.product_uom._compute_quantity(
                finished_move.quantity, finished_move.product_id.uom_id)
            extra_cost = self.extra_cost * quantity
            total_cost = - sum(consumed_moves.sudo().stock_valuation_layer_ids.mapped('value')) + work_center_cost + extra_cost
            byproduct_moves = self.move_byproduct_ids.filtered(lambda m: m.state not in ('done', 'cancel') and m.quantity > 0)
            byproduct_cost_share = 0
            for byproduct in byproduct_moves:
                if byproduct.cost_share == 0:
                    continue
                byproduct_cost_share += byproduct.cost_share
                if byproduct.product_id.cost_method in ('fifo', 'average'):
                    byproduct.price_unit = total_cost * byproduct.cost_share / 100 / byproduct.product_uom._compute_quantity(byproduct.quantity, byproduct.product_id.uom_id)
            if finished_move.product_id.cost_method in ('fifo', 'average'):
                finished_move.price_unit = total_cost * float_round(1 - byproduct_cost_share / 100, precision_rounding=0.0001) / quantity
        return True

    def _get_backorder_mo_vals(self):
        res = super()._get_backorder_mo_vals()
        res['extra_cost'] = self.extra_cost
        return res

    def _post_labour(self):
        for mo in self:
            if mo.with_company(mo.company_id).product_id.valuation != 'real_time':
                continue

            product_accounts = mo.product_id.product_tmpl_id.get_product_accounts()
            labour_amounts = defaultdict(float)
            workorders = defaultdict(self.env['mrp.workorder'].browse)
            for wo in mo.workorder_ids:
                account = wo.workcenter_id.expense_account_id or product_accounts['expense']
                labour_amounts[account] += wo._cal_cost()
                workorders[account] |= wo
            workcenter_cost = sum(labour_amounts.values())

            if mo.company_id.currency_id.is_zero(workcenter_cost):
                continue

            desc = _('%s - Labour', mo.name)
            account = self.env['account.account'].browse(mo.move_finished_ids[0]._get_src_account(product_accounts))
            labour_amounts[account] -= workcenter_cost
            account_move = self.env['account.move'].sudo().create({
                'journal_id': product_accounts['stock_journal'].id,
                'date': fields.Date.context_today(self),
                'ref': desc,
                'move_type': 'entry',
                'line_ids': [(0, 0, {
                    'name': desc,
                    'ref': desc,
                    'balance': -amt,
                    'account_id': acc.id,
                }) for acc, amt in labour_amounts.items()]
            })
            account_move._post()
            for line in account_move.line_ids[:-1]:
                workorders[line.account_id].time_ids.write({'account_move_line_id': line.id})

    def _post_inventory(self, cancel_backorder=False):
        res = super()._post_inventory(cancel_backorder=cancel_backorder)
        self.filtered(lambda mo: mo.state == 'done')._post_labour()
        return res