# redMine - project management software
# Copyright (C) 2006-2007  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.

class ProjectsController < ApplicationController
  menu_item :overview
  menu_item :activity, :only => :activity
  menu_item :roadmap, :only => :roadmap
  menu_item :files, :only => [:list_files, :add_file]
  menu_item :settings, :only => :settings
  menu_item :issues, :only => [:changelog]
  
  before_filter :find_project, :except => [ :index, :list, :add, :copy, :activity ]
  before_filter :find_optional_project, :only => :activity
  before_filter :authorize, :except => [ :index, :list, :add, :copy, :archive, :unarchive, :destroy, :activity ]
  before_filter :authorize_global, :only => :add
  before_filter :require_admin, :only => [ :copy, :archive, :unarchive, :destroy ]
  accept_key_auth :activity
  
  after_filter :only => [:add, :edit, :archive, :unarchive, :destroy] do |controller|
    if controller.request.post?
      controller.send :expire_action, :controller => 'welcome', :action => 'robots.txt'
    end
  end
  
  helper :sort
  include SortHelper
  helper :custom_fields
  include CustomFieldsHelper   
  helper :issues
  helper IssuesHelper
  helper :queries
  include QueriesHelper
  helper :repositories
  include RepositoriesHelper
  include ProjectsHelper
  
  # Lists visible projects
  def index
    respond_to do |format|
      format.html { 
        @projects = Project.visible.find(:all, :order => 'lft') 
      }
      format.atom {
        projects = Project.visible.find(:all, :order => 'created_on DESC',
                                              :limit => Setting.feeds_limit.to_i)
        render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
      }
    end
  end
  
  # Add a new project
  def add
    @issue_custom_fields = IssueCustomField.find(:all, :order => "#{CustomField.table_name}.position")
    @trackers = Tracker.all
    @project = Project.new(params[:project])
    if request.get?
      @project.identifier = Project.next_identifier if Setting.sequential_project_identifiers?
      @project.trackers = Tracker.all
      @project.is_public = Setting.default_projects_public?
      @project.enabled_module_names = Redmine::AccessControl.available_project_modules
    else
      @project.enabled_module_names = params[:enabled_modules]
      if @project.save
        @project.set_parent!(params[:project]['parent_id']) if User.current.admin? && params[:project].has_key?('parent_id')
        # Add current user as a project member if he is not admin
        unless User.current.admin?
          r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
          m = Member.new(:user => User.current, :roles => [r])
          @project.members << m
        end
        flash[:notice] = l(:notice_successful_create)
        redirect_to :controller => 'projects', :action => 'settings', :id => @project
      end
    end	
  end
  
  def copy
    @issue_custom_fields = IssueCustomField.find(:all, :order => "#{CustomField.table_name}.position")
    @trackers = Tracker.all
    @root_projects = Project.find(:all,
                                  :conditions => "parent_id IS NULL AND status = #{Project::STATUS_ACTIVE}",
                                  :order => 'name')
    if request.get?
      @project = Project.copy_from(params[:id])
      if @project
        @project.identifier = Project.next_identifier if Setting.sequential_project_identifiers?
      else
        redirect_to :controller => 'admin', :action => 'projects'
      end  
    else
      @project = Project.new(params[:project])
      @project.enabled_module_names = params[:enabled_modules]
      if @project.copy(params[:id])
        flash[:notice] = l(:notice_successful_create)
        redirect_to :controller => 'admin', :action => 'projects'
      end		
    end	
  end

	
  # Show @project
  def show
    if params[:jump]
      # try to redirect to the requested menu item
      redirect_to_project_menu_item(@project, params[:jump]) && return
    end
    
    @users_by_role = @project.users_by_role
    @subprojects = @project.children.visible
    @news = @project.news.find(:all, :limit => 5, :include => [ :author, :project ], :order => "#{News.table_name}.created_on DESC")
    @trackers = @project.rolled_up_trackers
    
    cond = @project.project_condition(Setting.display_subprojects_issues?)
    
    @open_issues_by_tracker = Issue.visible.count(:group => :tracker,
                                            :include => [:project, :status, :tracker],
                                            :conditions => ["(#{cond}) AND #{IssueStatus.table_name}.is_closed=?", false])
    @total_issues_by_tracker = Issue.visible.count(:group => :tracker,
                                            :include => [:project, :status, :tracker],
                                            :conditions => cond)
    
    TimeEntry.visible_by(User.current) do
      @total_hours = TimeEntry.sum(:hours, 
                                   :include => :project,
                                   :conditions => cond).to_f
    end
    @key = User.current.rss_key
  end

  def settings
    @issue_custom_fields = IssueCustomField.find(:all, :order => "#{CustomField.table_name}.position")
    @issue_category ||= IssueCategory.new
    @member ||= @project.members.new
    @trackers = Tracker.all
    @repository ||= @project.repository
    @wiki ||= @project.wiki
  end
  
  # Edit @project
  def edit
    if request.post?
      @project.attributes = params[:project]
      if @project.save
        @project.set_parent!(params[:project]['parent_id']) if User.current.admin? && params[:project].has_key?('parent_id')
        flash[:notice] = l(:notice_successful_update)
        redirect_to :action => 'settings', :id => @project
      else
        settings
        render :action => 'settings'
      end
    end
  end
  
  def modules
    @project.enabled_module_names = params[:enabled_modules]
    redirect_to :action => 'settings', :id => @project, :tab => 'modules'
  end

  def archive
    @project.archive if request.post? && @project.active?
    redirect_to :controller => 'admin', :action => 'projects'
  end
  
  def unarchive
    @project.unarchive if request.post? && !@project.active?
    redirect_to :controller => 'admin', :action => 'projects'
  end
  
  # Delete @project
  def destroy
    @project_to_destroy = @project
    if request.post? and params[:confirm]
      @project_to_destroy.destroy
      redirect_to :controller => 'admin', :action => 'projects'
    end
    # hide project in layout
    @project = nil
  end
	
  # Add a new issue category to @project
  def add_issue_category
    @category = @project.issue_categories.build(params[:category])
    if request.post? and @category.save
  	  respond_to do |format|
        format.html do
          flash[:notice] = l(:notice_successful_create)
          redirect_to :action => 'settings', :tab => 'categories', :id => @project
        end
        format.js do
          # IE doesn't support the replace_html rjs method for select box options
          render(:update) {|page| page.replace "issue_category_id",
            content_tag('select', '<option></option>' + options_from_collection_for_select(@project.issue_categories, 'id', 'name', @category.id), :id => 'issue_category_id', :name => 'issue[category_id]')
          }
        end
      end
    end
  end
	
  # Add a new version to @project
  def add_version
  	@version = @project.versions.build(params[:version])
  	if request.post? and @version.save
  	  flash[:notice] = l(:notice_successful_create)
      redirect_to :action => 'settings', :tab => 'versions', :id => @project
  	end
  end

  def add_file
    if request.post?
      container = (params[:version_id].blank? ? @project : @project.versions.find_by_id(params[:version_id]))
      attachments = attach_files(container, params[:attachments])
      if !attachments.empty? && Setting.notified_events.include?('file_added')
        Mailer.deliver_attachments_added(attachments)
      end
      redirect_to :controller => 'projects', :action => 'list_files', :id => @project
      return
    end
    @versions = @project.versions.sort
  end
  
  def list_files
    sort_init 'filename', 'asc'
    sort_update 'filename' => "#{Attachment.table_name}.filename",
                'created_on' => "#{Attachment.table_name}.created_on",
                'size' => "#{Attachment.table_name}.filesize",
                'downloads' => "#{Attachment.table_name}.downloads"
                
    @containers = [ Project.find(@project.id, :include => :attachments, :order => sort_clause)]
    @containers += @project.versions.find(:all, :include => :attachments, :order => sort_clause).sort.reverse
    render :layout => !request.xhr?
  end
  
  # Show changelog for @project
  def changelog
    @trackers = @project.trackers.find(:all, :conditions => ["is_in_chlog=?", true], :order => 'position')
    retrieve_selected_tracker_ids(@trackers)    
    @versions = @project.versions.sort
  end

  def roadmap
    @trackers = @project.trackers.find(:all, :conditions => ["is_in_roadmap=?", true])
    retrieve_selected_tracker_ids(@trackers)
    @versions = @project.versions.sort
    @versions = @versions.select {|v| !v.completed? } unless params[:completed]
  end
  
  def activity
    @days = Setting.activity_days_default.to_i
    
    if params[:from]
      begin; @date_to = params[:from].to_date + 1; rescue; end
    end

    @date_to ||= Date.today + 1
    @date_from = @date_to - @days
    @with_subprojects = params[:with_subprojects].nil? ? Setting.display_subprojects_issues? : (params[:with_subprojects] == '1')
    @author = (params[:user_id].blank? ? nil : User.active.find(params[:user_id]))
    
    @activity = Redmine::Activity::Fetcher.new(User.current, :project => @project, 
                                                             :with_subprojects => @with_subprojects,
                                                             :author => @author)
    @activity.scope_select {|t| !params["show_#{t}"].nil?}
    @activity.scope = (@author.nil? ? :default : :all) if @activity.scope.empty?

    events = @activity.events(@date_from, @date_to)
    
    respond_to do |format|
      format.html { 
        @events_by_day = events.group_by(&:event_date)
        render :layout => false if request.xhr?
      }
      format.atom {
        title = l(:label_activity)
        if @author
          title = @author.name
        elsif @activity.scope.size == 1
          title = l("label_#{@activity.scope.first.singularize}_plural")
        end
        render_feed(events, :title => "#{@project || Setting.app_title}: #{title}")
      }
    end
    
  rescue ActiveRecord::RecordNotFound
    render_404
  end
  
private
  # Find project of id params[:id]
  # if not found, redirect to project list
  # Used as a before_filter
  def find_project
    @project = Project.find(params[:id])
  rescue ActiveRecord::RecordNotFound
    render_404
  end
  
  def find_optional_project
    return true unless params[:id]
    @project = Project.find(params[:id])
    authorize
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def retrieve_selected_tracker_ids(selectable_trackers)
    if ids = params[:tracker_ids]
      @selected_tracker_ids = (ids.is_a? Array) ? ids.collect { |id| id.to_i.to_s } : ids.split('/').collect { |id| id.to_i.to_s }
    else
      @selected_tracker_ids = selectable_trackers.collect {|t| t.id.to_s }
    end
  end
end