class IgdbMatchSuggestion < ApplicationRecord
  # Associations
  belongs_to :game
  belongs_to :igdb_game, optional: true

  # Enums
  enum :status, {
    pending: "pending",
    approved: "approved",
    rejected: "rejected"
  }, prefix: true

  # Validations
  validates :igdb_id, presence: true
  validates :igdb_name, presence: true
  validates :game_id, uniqueness: { scope: :igdb_id }

  # Scopes
  scope :pending_review, -> { status_pending.order(confidence_score: :desc, created_at: :asc) }
  scope :for_user, ->(user) { joins(:game).where(games: { user_id: user.id }) }
  scope :high_confidence, -> { where("confidence_score >= ?", 80.0) }

  # Instance methods
  def approve!
    transaction do
      update!(status: "approved", reviewed_at: Time.current)

      # Update the game with the matched IGDB ID
      game.update!(
        igdb_id: igdb_id,
        igdb_matched_at: Time.current,
        igdb_match_status: "matched",
        igdb_match_confidence: confidence_score
      )

      # Find or create the IgdbGame record with full data
      igdb_game_record = IgdbGame.find_or_create_by!(igdb_id: igdb_id) do |ig|
        ig.name = igdb_name
        ig.slug = igdb_slug
        ig.cover_url = igdb_cover_url
        ig.summary = igdb_summary
        ig.first_release_date = igdb_release_date
        ig.last_synced_at = Time.current
      end

      # Update summary if it wasn't already set
      if igdb_game_record.summary.blank? && igdb_summary.present?
        igdb_game_record.update(summary: igdb_summary)
      end

      igdb_game_record.increment_match_count!

      # Map and assign IGDB genres to the game
      sync_genres_to_game if igdb_genres.present?

      # Reject all other pending suggestions for this game
      game.igdb_match_suggestions
          .where.not(id: id)
          .status_pending
          .update_all(
            status: "rejected",
            reviewed_at: Time.current
          )
    end
  end

  def reject!
    transaction do
      update!(
        status: "rejected",
        reviewed_at: Time.current
      )

      # Reject all other pending suggestions for this game
      game.igdb_match_suggestions
          .where.not(id: id)
          .status_pending
          .update_all(
            status: "rejected",
            reviewed_at: Time.current
          )

      # Mark game as manually reviewed with no match (only if all suggestions rejected)
      if game.igdb_match_suggestions.status_pending.none?
        game.update!(
          igdb_match_status: "no_match",
          igdb_matched_at: Time.current
        )
      end
    end
  end

  def cover_image_url(size = "cover_big")
    return nil unless igdb_cover_url.present?
    "https://images.igdb.com/igdb/image/upload/t_#{size}/#{igdb_cover_url}.jpg"
  end

  private

  def sync_genres_to_game
    return unless igdb_genres.is_a?(Array) && igdb_genres.any?

    # Genre mapping: IGDB genre names to our genre names
    genre_mappings = {
      "Role-playing (RPG)" => "RPG",
      "Fighting" => "Fighting",
      "Shooter" => "Shooter",
      "Music" => "Music",
      "Platform" => "Platformer",
      "Puzzle" => "Puzzle",
      "Racing" => "Racing",
      "Real Time Strategy (RTS)" => "Strategy",
      "Simulator" => "Simulation",
      "Sport" => "Sports",
      "Strategy" => "Strategy",
      "Turn-based strategy (TBS)" => "Strategy",
      "Tactical" => "Strategy",
      "Hack and slash/Beat 'em up" => "Action",
      "Quiz/Trivia" => "Puzzle",
      "Pinball" => "Arcade",
      "Adventure" => "Adventure",
      "Indie" => "Indie",
      "Arcade" => "Arcade",
      "Visual Novel" => "Adventure",
      "Card & Board Game" => "Puzzle",
      "MOBA" => "Strategy",
      "Point-and-click" => "Adventure"
    }

    # Find or create matching genres
    igdb_genres.each do |igdb_genre_name|
      # Try exact match first
      local_genre = Genre.find_by("LOWER(name) = ?", igdb_genre_name.downcase)

      # Try mapped name
      if local_genre.nil? && genre_mappings[igdb_genre_name]
        mapped_name = genre_mappings[igdb_genre_name]
        local_genre = Genre.find_by("LOWER(name) = ?", mapped_name.downcase)
      end

      # Add genre to game if found and not already assigned
      if local_genre && !game.genres.include?(local_genre)
        game.genres << local_genre
        Rails.logger.info("Added genre '#{local_genre.name}' to game #{game.id} from IGDB")
      end
    end
  end
end