# -*- 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/>.
#
##############################################################################

from openerp import tools
from openerp.osv import fields, osv
from .. import hr_recruitment
from openerp.addons.decimal_precision import decimal_precision as dp


class hr_recruitment_report(osv.Model):
    _name = "hr.recruitment.report"
    _description = "Recruitments Statistics"
    _auto = False
    _rec_name = 'date_create'
    _order = 'date_create desc'

    _columns = {
        'user_id': fields.many2one('res.users', 'User', readonly=True),
        'nbr': fields.integer('# of Applications', readonly=True),
        # TDE TODO: use MONTHS
        'month':fields.selection([('01', 'January'), ('02', 'February'), \
                                  ('03', 'March'), ('04', 'April'),\
                                  ('05', 'May'), ('06', 'June'), \
                                  ('07', 'July'), ('08', 'August'),\
                                  ('09', 'September'), ('10', 'October'),\
                                  ('11', 'November'), ('12', 'December')], 'Month', readonly=True),
        'company_id': fields.many2one('res.company', 'Company', readonly=True),
        'day': fields.char('Day', size=128, readonly=True),
        'year': fields.char('Year', size=4, readonly=True),
        'date_create': fields.date('Create Date', readonly=True),
        'date_last_stage_update': fields.datetime('Last Stage Update', readonly=True),
        'date_closed': fields.date('Closed', readonly=True),
        'job_id': fields.many2one('hr.job', 'Applied Job',readonly=True),
        'stage_id': fields.many2one ('hr.recruitment.stage', 'Stage'),
        'type_id': fields.many2one('hr.recruitment.degree', 'Degree'),
        'department_id': fields.many2one('hr.department','Department',readonly=True),
        'priority': fields.selection(hr_recruitment.AVAILABLE_PRIORITIES, 'Appreciation'),
        'salary_prop' : fields.float("Salary Proposed", digits_compute=dp.get_precision('Account')),
        'salary_prop_avg' : fields.float("Avg. Proposed Salary", group_operator="avg", digits_compute=dp.get_precision('Account')),
        'salary_exp' : fields.float("Salary Expected", digits_compute=dp.get_precision('Account')),
        'salary_exp_avg' : fields.float("Avg. Expected Salary", group_operator="avg", digits_compute=dp.get_precision('Account')),
        'partner_id': fields.many2one('res.partner', 'Partner',readonly=True),
        'available': fields.float("Availability"),
        'delay_close': fields.float('Avg. Delay to Close', digits=(16,2), readonly=True, group_operator="avg",
                                       help="Number of Days to close the project issue"),
        'last_stage_id': fields.many2one ('hr.recruitment.stage', 'Last Stage'),
    }
    
    def init(self, cr):
        tools.drop_view_if_exists(cr, 'hr_recruitment_report')
        cr.execute("""
            create or replace view hr_recruitment_report as (
                 select
                     min(s.id) as id,
                     date_trunc('day',s.create_date) as date_create,
                     date_trunc('day',s.date_closed) as date_closed,
                     date_trunc('day',s.date_last_stage_update) as date_last_stage_update,
                     to_char(s.create_date, 'YYYY') as year,
                     to_char(s.create_date, 'MM') as month,
                     to_char(s.create_date, 'YYYY-MM-DD') as day,
                     s.partner_id,
                     s.company_id,
                     s.user_id,
                     s.job_id,
                     s.type_id,
                     sum(s.availability) as available,
                     s.department_id,
                     s.priority,
                     s.stage_id,
                     s.last_stage_id,
                     sum(salary_proposed) as salary_prop,
                     (sum(salary_proposed)/count(*)) as salary_prop_avg,
                     sum(salary_expected) as salary_exp,
                     (sum(salary_expected)/count(*)) as salary_exp_avg,
                     extract('epoch' from (s.write_date-s.create_date))/(3600*24) as delay_close,
                     count(*) as nbr
                 from hr_applicant s
                 group by
                     to_char(s.create_date, 'YYYY'),
                     to_char(s.create_date, 'MM'),
                     to_char(s.create_date, 'YYYY-MM-DD') ,
                     date_trunc('day',s.create_date),
                     date_trunc('day',s.date_closed),
                     s.date_open,
                     s.create_date,
                     s.write_date,
                     s.date_closed,
                     s.date_last_stage_update,
                     s.partner_id,
                     s.company_id,
                     s.user_id,
                     s.stage_id,
                     s.last_stage_id,
                     s.type_id,
                     s.priority,
                     s.job_id,
                     s.department_id
            )
        """)

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