##############################################################################
#
# Copyright (c) 2004 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 time
import netsvc
from osv import fields, osv, orm

from mx import DateTime
import re

class scrum_team(osv.osv):
	_name = 'scrum.team'
	_description = 'Scrum Team'
	_columns = {
		'name' : fields.char('Team Name', size=64),
		'users_id' : fields.many2many('res.users', 'scrum_team_users_rel', 'team_id','user_id', 'Users'),
	}
scrum_team()

class scrum_project(osv.osv):
	_name = 'scrum.project'
	_inherit = 'project.project'
	_table = 'project_project'
	_description = 'Scrum Project'
	_columns = {
		'product_owner_id': fields.many2one('res.users', 'Product Owner'),
		'tasks': fields.one2many('scrum.task', 'project_id', 'Scrum Tasks'),
		'sprint_size': fields.integer('Sprint Days'),
		'scrum': fields.integer('Is Scrum'),
	}
	_defaults = {
		'product_owner_id': lambda self,cr,uid,context={}: uid,
		'warn_manager': lambda *a: 1,
		'sprint_size': lambda *a: 14,
		'scrum': lambda *a: 1
	}
scrum_project()

class scrum_sprint(osv.osv):
	_name = 'scrum.sprint'
	_description = 'Scrum Sprint'
	def _calc_progress(self, cr, uid, ids, name, args, context):
		res = {}
		for sprint in self.browse(cr, uid, ids):
			tot = 0.0
			prog = 0.0
			for bl in sprint.backlog_ids:
				tot += bl.planned_hours
				prog += bl.planned_hours * bl.progress / 100.0
			res.setdefault(sprint.id, 0.0)
			if tot>0:
				res[sprint.id] = round(prog/tot*100)
		return res
	def _calc_effective(self, cr, uid, ids, name, args, context):
		res = {}
		for sprint in self.browse(cr, uid, ids):
			res.setdefault(sprint.id, 0.0)
			for bl in sprint.backlog_ids:
				res[sprint.id] += bl.effective_hours
		return res
	def _calc_planned(self, cr, uid, ids, name, args, context):
		res = {}
		for sprint in self.browse(cr, uid, ids):
			res.setdefault(sprint.id, 0.0)
			for bl in sprint.backlog_ids:
				res[sprint.id] += bl.planned_hours
		return res
	_columns = {
		'name' : fields.char('Sprint Name', size=64),
		'date_start': fields.date('Starting Date', required=True),
		'date_stop': fields.date('Ending Date', required=True),
		'project_id': fields.many2one('scrum.project', 'Project', required=True, domain=[('scrum','=',1)]),
		'product_owner_id': fields.many2one('res.users', 'Product Owner', required=True),
		'scrum_master_id': fields.many2one('res.users', 'Scrum Master', required=True),
		'meetings_id': fields.one2many('scrum.meeting', 'sprint_id', 'Daily Scrum'),
		'review': fields.text('Sprint Review'),
		'retrospective': fields.text('Sprint Retrospective'),
		'backlog_ids': fields.one2many('scrum.product.backlog', 'sprint_id', 'Sprint Backlog'),
		'progress': fields.function(_calc_progress, method=True, string='Progress (0-100)'),
		'effective_hours': fields.function(_calc_effective, method=True, string='Effective hours'),
		'planned_hours': fields.function(_calc_planned, method=True, string='Planned Hours'),
		'state': fields.selection([('draft','Draft'),('open','Open'),('done','Done')], 'State', required=True),
	}
	_defaults = {
		'state': lambda *a: 'draft',
		'date_start' : lambda *a:time.strftime('%Y-%m-%d'),
	}
	def onchange_project_id(self, cr, uid, ids, project_id):
		v = {}
		if project_id:
			proj = self.pool.get('scrum.project').browse(cr, uid, [project_id])[0]
			v['product_owner_id']= proj.product_owner_id.id
			v['scrum_master_id']= proj.manager.id
			v['date_stop'] = (DateTime.now() + DateTime.RelativeDateTime(days=int(proj.sprint_size or 15))).strftime('%Y-%m-%d')
		return {'value':v}
		
scrum_sprint()

class scrum_product_backlog(osv.osv):
	_name = 'scrum.product.backlog'
	_description = 'Product Backlog'

	def name_search(self, cr, uid, name, args=[], operator='ilike', context={}):
		match = re.match('^S\(([0-9]+)\)$', name)
		if match:
			ids = self.search(cr, uid, [('sprint_id','=', int(match.group(1)))])
			return self.name_get(cr, uid, ids, context=context)
		return super(scrum_product_backlog, self).name_search(cr, uid, name, args,operator,context)

	def _calc_progress(self, cr, uid, ids, name, args, context):
		res = {}
		for bl in self.browse(cr, uid, ids):
			tot = 0.0
			prog = 0.0
			for task in bl.tasks_id:
				tot += task.planned_hours
				prog += task.planned_hours * task.progress / 100.0
			res.setdefault(bl.id, 0.0)
			if tot>0:
				res[bl.id] = round(prog/tot*100)
		return res
	def _calc_effective(self, cr, uid, ids, name, args, context):
		res = {}
		for bl in self.browse(cr, uid, ids):
			res.setdefault(bl.id, 0.0)
			for task in bl.tasks_id:
				res[bl.id] += task.effective_hours
		return res
	def _calc_planned(self, cr, uid, ids, name, args, context):
		res = {}
		for bl in self.browse(cr, uid, ids):
			res.setdefault(bl.id, 0.0)
			for task in bl.tasks_id:
				res[bl.id] += task.planned_hours
		return res
	_columns = {
		'name' : fields.char('Feature', size=64),
		'note' : fields.text('Note'),
		'active' : fields.boolean('Active'),
		'project_id': fields.many2one('scrum.project', 'Scrum Project', required=True, domain=[('scrum','=',1)]),
		'user_id': fields.many2one('res.users', 'User'),
		'sprint_id': fields.many2one('scrum.sprint', 'Sprint'),
		'sequence' : fields.integer('Sequence'),
		'priority' : fields.selection([('4','Very Low'), ('3','Low'), ('2','Medium'), ('1','Urgent'), ('0','Very urgent')], 'Priority'),
		'tasks_id': fields.one2many('scrum.task', 'product_backlog_id', 'Tasks Details'),
		'state': fields.selection([('draft','Draft'),('open','Open'),('done','Done')], 'State', required=True),
		'progress': fields.function(_calc_progress, method=True, string='Progress (0-100)'),
		'effective_hours': fields.function(_calc_effective, method=True, string='Effective hours'),
		'planned_hours': fields.function(_calc_planned, method=True, string='Planned Hours')
	}
	_defaults = {
		'priority': lambda *a: '4',
		'state': lambda *a: 'draft',
		'active': lambda *a: 1
	}
	_order = "priority,sequence"
scrum_product_backlog()

class scrum_task(osv.osv):
	_name = 'scrum.task'
	_inherit = 'project.task'
	_table = 'project_task'
	_description = 'Scrum Task'
	_columns = {
		'product_backlog_id': fields.many2one('scrum.product.backlog', 'Product Backlog'),
		'scrum': fields.integer('Is Scrum'),
	}
	_defaults = {
		'scrum': lambda *a: 1,
	}
	def onchange_backlog_id(self, cr, uid, backlog_id):
		if not backlog_id:
			return {}
		project_id = self.pool.get('scrum.product.backlog').browse(cr, uid, backlog_id).project_id.id
		return {'value': {'project_id': project_id}}
scrum_task()

class scrum_meeting(osv.osv):
	_name = 'scrum.meeting'
	_description = 'Scrum Meeting'
	_columns = {
		'name' : fields.char('Meeting Name', size=64, required=True),
		'date': fields.date('Meeting Date', required=True),
		'sprint_id': fields.many2one('scrum.sprint', 'Sprint', required=True),
		'question_yesterday': fields.text('Tasks since yesterday'),
		'question_today': fields.text('Tasks for today'),
		'question_blocks': fields.text('Blocks encountered'),
		#
		# Should be more formal.
		#
		'question_backlog': fields.text('Backlog Accurate'),
	}
	#
	# Find the right sprint thanks to users and date
	#
	_defaults = {
		'date' : lambda *a:time.strftime('%Y-%m-%d'),
	}
scrum_meeting()

