##############################################################################
#
# Copyright (c) 2005 TINY SPRL. (http://tiny.be) All Rights Reserved.
#                    Fabien Pinckaers <fp@tiny.Be>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

import os
from mx import DateTime
from mx.DateTime import now
import time

import netsvc, tools
import sql_db

import report.print_xml
import report.render
import report.common

from report.interface import report_rml
from report.interface import toxml

one_day = DateTime.RelativeDateTime(days=1)
month2name = [0,'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']

def hour2str(h):
	hours = int(h)
	minutes = int(round((h - hours) * 60, 0))
	return '%02dh%02d' % (hours, minutes)

class report_custom(report_rml):
	def create_xml(self, uid, ids, datas, context):
		service = netsvc.LocalService('object_proxy')

		month = DateTime.DateTime(datas['form']['year'], datas['form']['month'], 1)
		
		user_xml = ['<month>%s</month>' % month2name[month.month], '<year>%s</year>' % month.year]
		cr = sql_db.db.cursor()
		
		# Public holidays
		jf_sql = """select hol.date_from, hol.date_to from hr_holidays as hol, hr_holidays_status as stat
					where hol.holiday_status = stat.id and stat.name = 'Public holidays' """
		cr.execute(jf_sql)
		jfs = []
		jfs = [(DateTime.strptime(l['date_from'], '%Y-%m-%d %H:%M:%S'), DateTime.strptime(l['date_to'], '%Y-%m-%d %H:%M:%S')) for l in cr.dictfetchall()]
		
		for employee_id in ids:
			emp = service.execute(uid, 'hr.employee', 'read', [employee_id])[0]
			stop, days_xml = False, []
			user_repr = '''
			<user>
			  <name>%s</name>
			  <regime>%s</regime>
			  <holiday>%s</holiday>
			  %%s
			</user>
			''' % (toxml(emp['name']),emp['regime'],emp['holiday_max'])
			today, tomor = month, month + one_day
			while today.month == month.month:
				#### Work hour calculation
				sql = '''
				select action, att.name
				from hr_employee as emp inner join hr_attendance as att
				     on emp.id = att.employee_id
				where att.name between '%s' and '%s' and emp.id = %s
				order by att.name
				'''
				cr.execute(sql, (today, tomor, employee_id))
				attendences = cr.dictfetchall()
				wh = 0
				if attendences and attendences[0]['action'] == 'sign_out':
					attendences.insert(0, {'name': today.strftime('%Y-%m-%d %H:%M:%S'), 'action':'sign_in'})
				if attendences and attendences[-1]['action'] == 'sign_in':
					attendences.append({'name' : tomor.strftime('%Y-%m-%d %H:%M:%S'), 'action':'sign_out'})
				for att in attendences:
					dt = DateTime.strptime(att['name'], '%Y-%m-%d %H:%M:%S')
					if att['action'] == 'sign_out':
						wh += (dt - ldt).hours
					ldt = dt

				#### Theoretical workhour calculation
				sql = '''
				select t.hour_from, t.hour_to
				from hr_timesheet as t
					 inner join (hr_timesheet_group as g inner join hr_timesheet_employee_rel as rel
						         on rel.tgroup_id = g.id and rel.emp_id = %s)
					 on t.tgroup_id = g.id
				where dayofweek = %s 
					  and date_from = (select max(date_from) 
									   from hr_timesheet inner join (hr_timesheet_employee_rel 
																		inner join hr_timesheet_group 
																		on hr_timesheet_group.id = hr_timesheet_employee_rel.tgroup_id
																			and hr_timesheet_employee_rel.emp_id = %s)
														 on hr_timesheet.tgroup_id = hr_timesheet_group.id
									   where dayofweek = %s and date_from <= '%s') 
				order by date_from desc
				'''
				isPH = False
				for jf_start, jf_end in jfs:
					if jf_start <= today <= jf_end:
						isPH = True
						break
				if isPH:
					twh = 0
				else:
					cr.execute(sql, (emp['id'], today.day_of_week, emp['id'], today.day_of_week, today))
					ths = cr.dictfetchall()
					twh = reduce(lambda x,y:x+(DateTime.strptime(y['hour_to'], '%H:%M:%S') - DateTime.strptime(y['hour_from'], '%H:%M:%S')).hours,ths, 0)

				#### Holiday calculation
				hh = 0
				sql = '''
				select hol.date_from, hol.date_to, stat.name as status
				from hr_employee as emp 
					 inner join (hr_holidays as hol left join hr_holidays_status as stat
					             on hol.holiday_status = stat.id)
				     on emp.id = hol.employee_id
				where ((hol.date_from <= '%s' and hol.date_to >= '%s') 
				       or (hol.date_from < '%s' and hol.date_to >= '%s')
					   or (hol.date_from > '%s' and hol.date_to < '%s'))
					  and emp.id = %s
				order by hol.date_from
				'''
				cr.execute(sql, (today, today, tomor, tomor, today, tomor, employee_id))
				holidays = cr.dictfetchall()
				for hol in holidays:
					df = DateTime.strptime(hol['date_from'], '%Y-%m-%d %H:%M:%S')
					dt = DateTime.strptime(hol['date_to'], '%Y-%m-%d %H:%M:%S')
					if (df.year, df.month, df.day) <= (today.year, today.month, today.day) <= (dt.year, dt.month, dt.day):
						if (df.year, df.month, df.day) == (dt.year, dt.month, dt.day):
							hh += (dt - df).hours
						else:
							hh = twh
				
				# Week xml representation
				twh, wh, hh = map(hour2str, (twh, wh, hh))
				today_xml = '<day num="%s"><th>%s</th><wh>%s</wh><hh>%s</hh></day>' % ((today - month).days+1, twh, wh, hh)
				days_xml.append(today_xml)
				today, tomor = tomor, tomor + one_day
				
			user_xml.append(user_repr % '\n'.join(days_xml))
		
		xml = '''<?xml version="1.0" encoding="UTF-8" ?>
		<report>
		%s
		</report>
		''' % '\n'.join(user_xml)

		return xml

report_custom('report.hr.timesheet.bymonth', 'hr.employee', '', 'addons/hr/report/bymonth.xsl')
# vim:noexpandtab:tw=0
