#
# Used by Gitlab only
#
class ArticlesController < ApplicationController

  after_filter :after_article, :only => [ :find_by_permalink ]
  before_filter :find_project, :except => [ :find_by_date, :find_by_permalink, :find_by_type, :find_by_category,
    :find_by_user, :find_by_sitename, :find_by_sitename_and_type, :find_by_project_and_type ]
  before_filter :authorised, :only => [ :update, :edit, :destroy, :new, :create ]
  
  # Show all articles, render grouped by year, month
  def index
    # Project articles index
    if @project
      @articles = @is_member ? Article.find_by_project!(@project.id) : Article.find_by_project(@project.id, current_user)
      @title, @url_suffix = Project.tab_settings(PRJ_TAB_ARTICLES)
      render :action => "ac_project_index"
    else
      # Archives articles index
      @title = "Archives"
      @articles = Article.find_all_articles(current_user)
      unless @articles.empty?
        @show_archive_breadcrumb = false
        render :action => "ac_index"
      else
        flash[:error] = "No articles found."
        redirect_to root_path
      end
    end
  end

  # not used as only code to display a single article uses find_by_permalink
  def show
  end
  
  def edit
    if @project
      # Project article
      @article = Article.find_by_id!(params[:id])
      if @article
        @title = "Editing: " + @project.title + ": " + @article.title
        render :action => "ac_project_edit"
      else
        flash[:error] = "Article not found."
        redirect_to project_path(@project)
      end
    else
      # Normal article index page
    end
  end
  
  def update
    if @project
      # Project article
      @article = Article.find_by_id(params[:id], current_user)
      if @article
        #FIXME is this correct?, does deep_clone make one? (if not it should)
        original_article = Article.new
        original_article = @article.deep_clone
        if @article.update_attributes(params[:article])
          @article.save
          Journal.update(original_article, @article, request.env["REMOTE_ADDR"], @project.id, current_user.id, "Edited article: \'" + @article.title + "\'.")
          flash[:notice] = "Article was successfully updated."
          redirect_to project_articles_path(@project)
        else
          @title = "Editing: " + @project.title + ": " + @article.title
          render :action => "ac_project_edit"
        end
      else
        flash[:error] = "Article not found."
        redirect_to project_path(@project)
      end
    else
      # Normal Article
    end
  end

  def destroy
    if @is_member
      @article = Article.find(params[:id])
      if @article
        original_article = Article.new
        original_article = @article.deep_clone
        @article.status = :deleted
        if @article.save
          Journal.update(original_article, @article, request.env["REMOTE_ADDR"], @project.id, current_user.id, "Deleted article: \'" + @article.title + "\'.")
          flash[:notice] = 'Article deleted.'
        else
          #TODO add error report
          flash[:error] = 'An error occurred.'
        end
        redirect_to project_articles_path(@project)
      else
        flash[:error] = 'Article ' + params[:id] + ' does not exist.'
        redirect_to project_articles_path(@project)
      end
    end
  end
  
  # Show all articles /2008 or /2008/11 or /2008/11/1 and render grouped by date
  def find_by_date
    @articles = Article.find_by_date(current_user, params[:year], params[:month], params[:day])
    #
    # FIXME improve this to show "November 2008" rather than "2008/11"    
    #
    @title = "Articles for " << params[:year]
    @title = @title << "/" << params[:month] if params[:month] != ni
    #
    unless @articles.empty?
      @show_archive_breadcrumb = true
      render :action => "ac_index"
    else
      flash[:error] = "Article does not exist."
      redirect_to articles_path
    end
  end

  # Show /2008/11/1/permalink-title
  def find_by_permalink
    #
    @article = Article.find_by_permalink(params[:permalink], current_user)
    if @article
      @title = @article.title
      render :action => "ac_show"
    else
      flash[:error] = "Article does not exist."
      redirect_to articles_path
    end
  end
  
  # Show all 'News' articles
  def find_by_type
    @articles = Article.find_by_type(params[:article_type], current_user)
    unless @articles.empty?
      #@title = Article.format_article_type(params[:article_type])
      @show_archive_breadcrumb = true
      @title = Article::format_article_type(@articles[0].article_type) #FIXME ??
      render :action => "ac_index"      
    else
      flash[:error] = "No articles for type '" << params[:article_type] << "'."
      redirect_to articles_path
    end
  end
  
  # Show all articles for a category
  def find_by_category
    #
    # get category_id from :category
    category = Category.find_by_slug(params[:category])
    if category
      #
      @articles = Article.find_by_category(category.id, current_user)
      unless @articles.empty?
        @title = "'" << category.name << "' Articles"
        @show_archive_breadcrumb = true
        render :action => "ac_index"      
      else
        flash[:error] = "No articles for category '" << category.name << "'."
        redirect_to articles_path
      end
    else
      flash[:error] = "'" << params[:category] << "' category not found."
      redirect_to articles_path
    end
  end

  
  # Show all articles for a project
  def find_by_project
    if @project
      @articles = Article.find_by_project(@project.id, current_user)
      unless @articles.empty?
        @title = @project.title << " Articles"
        @show_archive_breadcrumb = true
        render :action => "ac_index"      
      else
        flash[:error] = "No articles found for project '" << @project.title << "'."
        redirect_to project_path(@project)
      end
    else
        flash[:error] = "Project not found."
        redirect_to root_path
    end
  end
  

  # Show all articles for a user
  def find_by_user
    @user = User.find_by_slug(params[:user_slug])
    if @user
      @articles = Article.find_by_user(@user.id, current_user)
      unless @articles.empty?
        @title = @user.fullname << " Articles"
        @show_archive_breadcrumb = true
        render :action => "ac_index"      
      else
        flash[:error] = "No articles found for '" << @user.fullname << "'."
        redirect_to articles_path
      end
    else
      flash[:error] = "User not found."
      redirect_to articles_path
    end
  end

  # Show all articles for sitename
  def find_by_sitename
    @articles = Article.find_by_sitename
    unless @articles.empty?
      @title = SITENAME << " Articles"
      @show_archive_breadcrumb = true
      render :action => "ac_index"      
    else
      flash[:error] = "No articles found for Sitename."
      redirect_to articles_path
    end
  end
  
  # Show all articles for sitename
  # FIXME can reuse find_by_sitename for this, by testing if params[:article_type] exists
  def find_by_sitename_and_type
    @articles = Article.find_by_sitename_and_type(params[:article_type])
    unless @articles.empty?
      @title = SITENAME << " '" << Article.format_article_type(params[:article_type]) << "' Articles"
      @show_archive_breadcrumb = true
      render :action => "ac_index"      
    else
      flash[:error] = "No " << Article.format_article_type(params[:article_type]) << " articles found for " << SITENAME << "."
      redirect_to articles_path
    end
  end

  # Show all articles for a project
  def find_by_project_and_type
    @articles = Article.find_by_project_and_type(params[:article_type], @project.id, current_user)
    unless @articles.empty?
      @title = @project.title << " '" << Article.format_article_type(params[:article_type]) << "' Articles"
      @show_archive_breadcrumb = true
      render :action => "ac_index"      
    else
      flash[:error] = "No '" << Article.format_article_type(params[:article_type]) << "' articles found for project '" << @project.name << "'."
      redirect_to articles_path
    end
  end

  
protected

  # Increase view count for a permalink page
  def after_article
    if @article
      @article.views = @article.views + 1
      @article.save!
    end
  end
  
end