# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#          'price_costo': fields.float('Price Costo', readonly=True),
##############################################################################

from openerp import tools
from openerp.osv import fields, osv

class compraventa_analisis(osv.osv):
    _name = "compraventa.analisis"
    _description = "Analisis de Compra y Venta sobre Productos"
    _auto = False


    _columns = {
        'id': fields.many2one('product.product', 'Id', readonly=True),
        'name_template': fields.char('Descripcion', readonly=True),
        'price_cost': fields.float('Precio compra', readonly=True),
        'product_qty': fields.float('Qty compra', readonly=True),
        'tpc': fields.float('Subtotal compra', readonly=True),
        'price_unit': fields.float('Precio venta', readonly=True),
        'product_uom_qty': fields.float('Qty venta', readonly=True),
        'tpv': fields.float('Subtotal venta', readonly=True),
        'tgan': fields.float('Ganancia/Perdida', readonly=True),
    }
    _order = 'id desc'


    def init(self, cr):
            tools.sql.drop_view_if_exists(cr, 'compraventa_analisis')
            cr.execute("""
                CREATE OR REPLACE VIEW compraventa_analisis AS (
    				SELECT p.id as id, p.name_template as name_template, c.price_cost as price_cost, c.compras as product_qty, c.tpc as tpc, v.price_unit as price_unit,v.ventas as product_uom_qty, v.tpv as tpv, (v.tpv-c.tpc) as tgan
                    FROM product_product p
                    LEFT JOIN (
                    SELECT MIN(r.product_id) AS id, SUM(r.price_unit/r.product_qty) as price_cost, SUM(r.product_qty) compras, (SUM(r.price_unit/r.product_qty)*SUM(r.product_qty)) tpc
                    FROM purchase_order_line r left join purchase_order f on (f.id=r.order_id) where f.state='done' GROUP BY r.product_id) c ON c.id=p.id
                    LEFT JOIN (
                    SELECT MIN(l.product_id) AS id, SUM(l.price_unit/l.product_uom_qty) as price_unit, SUM(l.product_uom_qty) ventas, (SUM(l.price_unit/l.product_uom_qty)*SUM(l.product_uom_qty)) tpv
                    FROM sale_order_line l left join sale_order s on (s.id=l.order_id) where l.state='done' GROUP BY l.product_id, l.price_unit) v ON v.id=p.id
                )
             """)
compraventa_analisis()