class StreamController < ApplicationController
  before_action :authenticate_user!
  before_action :set_stream_navbar_actions, only: [:index, :global]
  before_action :set_stream_navbar_color, only: [:index, :global]
  before_action :set_sidenav_expansion
  before_action :cache_linkable_content_for_each_content_type, only: [:index, :global]
  before_action :load_recent_forum_topics, only: [:index, :global]

  def index
    @page_title = "What's happening"

    followed_users   = current_user.followed_users.pluck(:id)
    blocked_users    = current_user.blocked_users.pluck(:id)
    blocked_by_users = current_user.blocked_by_users.pluck(:id)

    @feed = ContentPageShare.where(user_id: followed_users + [current_user.id] - blocked_users - blocked_by_users)
      .order('created_at DESC')
      .includes([:content_page, :secondary_content_page])
      .includes({ share_comments: [:user], user: [:avatar_attachment] })
    
    # Apply search filter if present
    if params[:search].present?
      search_term = "%#{params[:search]}%"
      @feed = @feed.joins(:user).where(
        "content_page_shares.message ILIKE ? OR users.name ILIKE ? OR users.email ILIKE ?", 
        search_term, search_term, search_term
      )
    end
    
    @feed = @feed.limit(25)
  end

  def community
  end

  def global
    @page_title = "What's happening around the world"

    blocked_users    = current_user.blocked_users.pluck(:id)
    blocked_by_users = current_user.blocked_by_users.pluck(:id)

    @feed = ContentPageShare.all
      .where.not(user_id: blocked_users + blocked_by_users)
      .order('created_at DESC')
      .includes([:content_page, :secondary_content_page])
      .includes({ share_comments: [:user], user: [:avatar_attachment] })
    
    # Apply search filter if present
    if params[:search].present?
      search_term = "%#{params[:search]}%"
      @feed = @feed.joins(:user).where(
        "content_page_shares.message ILIKE ? OR users.name ILIKE ? OR users.email ILIKE ?", 
        search_term, search_term, search_term
      )
    end
    
    @feed = @feed.limit(25)
  end

  def set_stream_navbar_color
    @navbar_color = '#CE93D8'
  end

  # For showing a specific piece of content
  def set_stream_navbar_actions
    @navbar_actions = [
      {
        label: 'You & Your Network',
        href: main_app.stream_path
      },
      {
        label: 'Around the world',
        href: main_app.stream_world_path
      }
    ]
  end

  def set_sidenav_expansion
    @sidenav_expansion = 'community'
  end

  private

  def load_recent_forum_topics
    # Get the 5 most recent forum posts and their topics
    recent_posts = Thredded::Post.joins(:topic)
                                 .where(deleted_at: nil)
                                 .order(created_at: :desc)
                                 .limit(10)
                                 .includes(:topic, :user)

    # Get unique topics from recent posts, limited to 5
    @recent_forum_topics = recent_posts.map(&:topic)
                                      .uniq { |topic| topic.id }
                                      .first(5)
  rescue => e
    Rails.logger.error "Error loading recent forum topics: #{e.message}"
    @recent_forum_topics = []
  end
end