# encoding: utf-8
#
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module WelcomeHelper
	
	def newbieTopiclist
		find_all_topic_by_board_id
	end

	def newbieTopicStickyList
		find_all_topic_by_board_id 1
	end

	def find_project_by_topic topic
		board = find_board_by_topic(topic)
		find_project_by_board board
	end

	def find_all_hot_project
		sort_project_by_hot
	end
	
	def find_all_hot_course
		sort_course_by_hot
	end
	
	def find_all_hot_bid
		sort_bid_by_hot
	end

	def find_all_hot_contest
		sort_contest_by_hot
	end

	private

	def search_project
		Project.find_by_identifier "newbie_faq"
	end

	def find_all_topic_by_board_id sticky = 0, limit = 30
		project   = search_project
		return [] if(project.nil? or project.boards.nil?)
		board_id  = project.boards.first.id
		logger.debug "[WelcomeHelper] ===> find_all_topic_by_board_id=> project.id:#{project.id}, board_id:#{board_id}, sticky:#{sticky}"
		Message.where("board_id = :board_id and sticky=:sticky", :board_id => board_id, :sticky => sticky ).limit(limit)
	end

	def find_board_by_topic topic
		Board.find_by_id(topic.board_id)
	end
	def find_project_by_board board
		Project.find_by_id(board.project_id)
	end
	
	def sort_project_by_hot
		return sort_project_by_hot_rails 0
	end

	def sort_course_by_hot 
		return sort_project_by_hot_rails 1
	end

	def sort_bid_by_hot
		return sort_bid_by_hot_rails 1
	end

	def sort_contest_by_hot
		return sort_bid_by_hot_rails 2
	end
	#取得所有活动
	def find_all_activities limit=10
		users = []
		activities = Activity.find_by_sql("select distinct user_id from activities order by id DESC limit #{limit}" )
		activities.each { |activity|
			users << activity.user_id
		}
		user_objs = User.find_by_sql("SELECT * FROM users WHERE (users.id IN #{"(" << users.join(',') << ")"} )")
		activity = Redmine::Activity::Fetcher.new(user_objs)

		activity.events_welcome(nil, nil, {:limit => limit})
	end

	#取得论坛数据
	def find_hot_forum_topics limit=10
		  Memo.order('replies_count DESC').where('replies_count <> 0').limit(limit)
	end

	def sort_project_by_hot_rails project_type
		limit = 10
		project_type == 0 ? Project.find_by_sql("
			SELECT p.id, p.name, p.description, p.identifier, t.project_id 
			FROM projects AS p RIGHT OUTER JOIN (
				SELECT project_id,grade FROM project_statuses 
				WHERE project_type = #{project_type} ORDER BY  grade DESC LIMIT #{limit} ) AS t ON p.id = t.project_id ")
		: Project.find_by_sql("
			SELECT p.id, p.name, p.description, p.identifier, t.project_id 
			FROM projects AS p RIGHT OUTER JOIN (
				SELECT project_id,grade FROM project_statuses 
				WHERE project_type = #{project_type} ORDER BY  course_ac_para DESC LIMIT #{limit} ) AS t ON p.id = t.project_id ")
	end

	def sort_bid_by_hot_rails reward_type
		limit = 10
		Bid.visible.where('reward_type = ?', reward_type).reorder('bids.commit desc').limit(limit).all
	end

end