#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
#
# Copyright (C) 2012-2013 the OpenProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

class MyController < ApplicationController
  layout 'my'

  before_filter :require_login

  menu_item :account, :only => [:account]
  menu_item :password, :only => [:password]

  DEFAULT_BLOCKS = { 'issuesassignedtome' => :label_assigned_to_me_work_packages,
             'issuesreportedbyme' => :label_reported_work_packages,
             'issueswatched' => :label_watched_work_packages,
             'news' => :label_news_latest,
             'calendar' => :label_calendar,
             'timelog' => :label_spent_time
           }.freeze

  DEFAULT_LAYOUT = {  'left' => ['issuesassignedtome'],
                      'right' => ['issuesreportedbyme']
                   }.freeze

  verify :xhr => true,
         :only => [:add_block, :remove_block, :order_blocks]

  def self.available_blocks
    @available_blocks ||= DEFAULT_BLOCKS.merge(Redmine::Views::MyPage::Block.additional_blocks)
  end


  # Show user's page
  def index
    @user = User.current
    @blocks = @user.pref[:my_page_layout] || DEFAULT_LAYOUT
    render :action => 'page', :layout => 'base'
  end
  alias :page :index

  # Edit user's account
  def account
    @user = User.current
    @pref = @user.pref
    if request.put?
      @user.safe_attributes = params[:user]
      @user.pref.attributes = params[:pref]
      @user.pref[:no_self_notified] = (params[:no_self_notified] == '1')
      if @user.save
        @user.pref.save
        @user.notified_project_ids = (@user.mail_notification == 'selected' ? params[:notified_project_ids] : [])
        set_language_if_valid @user.language
        flash[:notice] = l(:notice_account_updated)
        redirect_to :action => 'account'
      end
    end
  end

  # Manage user's password
  def password
    @user = User.current  # required by "my" layout
    @username = @user.login
    redirect_if_password_change_not_allowed_for(@user)
  end

  # When making changes here, also check AccountController.change_password
  def change_password
    @user = User.current  # required by "my" layout
    @username = @user.login
    return if redirect_if_password_change_not_allowed_for(@user)
    if @user.check_password?(params[:password])
      @user.password = params[:new_password]
      @user.password_confirmation = params[:new_password_confirmation]
      @user.force_password_change = false
      if @user.save
        flash[:notice] = l(:notice_account_password_updated)
        redirect_to :action => 'account'
        return
      end
    else
      flash.now[:error] = l(:notice_account_wrong_password)
    end
    render 'my/password'
  end

  def first_login
    if request.get?
      @user = User.current
      @back_url = url_for(params[:back_url])

    elsif request.post? || request.put?
      User.current.pref.attributes = params[:pref]
      User.current.pref.save

      flash[:notice] = l(:notice_account_updated)
      redirect_back_or_default(:controller => '/my', :action => 'page')
    end
  end

  # Create a new feeds key
  def reset_rss_key
    if request.post?
      if User.current.rss_token
        User.current.rss_token.destroy
        User.current.reload
      end
      User.current.rss_key
      flash[:notice] = l(:notice_feeds_access_key_reseted)
    end
    redirect_to :action => 'account'
  end

  # Create a new API key
  def reset_api_key
    if request.post?
      if User.current.api_token
        User.current.api_token.destroy
        User.current.reload
      end
      User.current.api_key
      flash[:notice] = l(:notice_api_access_key_reseted)
    end
    redirect_to :action => 'account'
  end

  # User's page layout configuration
  def page_layout
    @user = User.current
    @blocks = @user.pref[:my_page_layout] || DEFAULT_LAYOUT.dup
    @block_options = []
    MyController.available_blocks.each {|k, v| @block_options << [l("my.blocks.#{v}", :default => [v, v.to_s.humanize]), k.dasherize]}
  end

  # Add a block to user's page
  # The block is added on top of the page
  # params[:block] : id of the block to add
  def add_block
    block = params[:block].to_s.underscore
    (render :nothing => true; return) unless block && (MyController.available_blocks.keys.include? block)
    @user = User.current
    layout = @user.pref[:my_page_layout] || {}
    # remove if already present in a group
    %w(top left right).each {|f| (layout[f] ||= []).delete block }
    # add it on top
    layout['top'].unshift block
    @user.pref[:my_page_layout] = layout
    @user.pref.save
    render :partial => "block", :locals => {:user => @user, :block_name => block}
  end

  # Remove a block to user's page
  # params[:block] : id of the block to remove
  def remove_block
    block = params[:block].to_s.underscore
    @user = User.current
    # remove block in all groups
    layout = @user.pref[:my_page_layout] || {}
    %w(top left right).each {|f| (layout[f] ||= []).delete block }
    @user.pref[:my_page_layout] = layout
    @user.pref.save
    render :nothing => true
  end

  # Change blocks order on user's page
  # params[:group] : group to order (top, left or right)
  # params[:list-(top|left|right)] : array of block ids of the group
  def order_blocks
    group = params[:group]
    @user = User.current
    if group.is_a?(String)
      group_items = (params["list-#{group}"] || []).collect(&:underscore)
      if group_items and group_items.is_a? Array
        layout = @user.pref[:my_page_layout] || {}
        # remove group blocks if they are presents in other groups
        %w(top left right).each {|f|
          layout[f] = (layout[f] || []) - group_items
        }
        layout[group] = group_items
        @user.pref[:my_page_layout] = layout
        @user.pref.save
      end
    end
    render :nothing => true
  end

  def default_breadcrumb
    l(:label_my_account)
  end

  private
  def redirect_if_password_change_not_allowed_for(user)
    unless user.change_password_allowed?
      flash[:error] = l(:notice_can_t_change_password)
      redirect_to :action => 'account'
      return true
    end
    false
  end
end