class ContestantsController < ApplicationController
  include CompletionsConcern
  include ContestantsConcern

  before_action :set_contest, only: %i[ index edit new create update destroy import upload_csv convert_csv finalize_import export generate_qrcodes generate_qrcodes_pdf ]
  before_action :set_contestant, only: %i[ destroy edit update]
  before_action :set_completions, only: %i[edit update ]
  skip_before_action :require_authentication, only: %i[ get_public_completion post_public_completion public_completion_updated ]

  def index
    authorize @contest

    @contestants = @contest.contestants.sort_by { |contestant| contestant.name }
    filter_contestants_per_category
  end

  def edit
    authorize @contest
  end

  def new
    authorize @contest

    @contestant = Contestant.new
  end

  def create
    authorize @contest

    @contestant = Contestant.new(contestant_params)
    @contestant.contest_id = @contest.id
    if @contestant.save
      update_contestant_categories
      redirect_to contest_path(@contest), notice: t("contestants.new.notice")
    else
      render :new, status: :unprocessable_entity
    end
  end

  def update
    authorize @contest

    if @contestant.update(contestant_params)
      update_contestant_categories
      redirect_to contest_contestants_path(@contest), notice: t("contestants.edit.notice")
    else
      render :edit, status: :unprocessable_entity
    end
  end

  def destroy
    authorize @contest

    @contestant.destroy
    redirect_to contest_path(@contest), notice: t("contestants.destroy.notice")
  end

  def import
    authorize @contest

    @action_name = t("helpers.buttons.back")
    @action_path = contest_path(@contest)

    @csv_import = CsvImport.new
  end

  def upload_csv
    authorize @contest

    @csv_import = CsvImport.new(params.require(:csv_import).permit(:file, :separator))
    if @csv_import.save
      redirect_to "/contests/#{@contest.id}/import/#{@csv_import.id}"
    else
      render :import, status: :unprocessable_entity
    end
  end

  def convert_csv
    authorize @contest

    @csv_import = CsvImport.find(params[:id])
    @content = JSON.parse(@csv_import.content)
    @form = Forms::CsvConversionForm.new
  end

  def finalize_import
    authorize @contest

    @csv_import = CsvImport.find(params[:id])
    @content = JSON.parse(@csv_import.content)
    all_params = params.require(:forms_csv_conversion_form)
    @form = Forms::CsvConversionForm.new(params.require(:forms_csv_conversion_form).permit(:email_column, :name_column))
    if @form.valid?
      @content.each_with_index do |row, i|
        if all_params["row_#{i}".to_sym] == "1"
          if @form.email_column == -1
            Contestant.create(name: row[@form.name_column], contest: @contest)
          else
            Contestant.create(name: row[@form.name_column], email: row[@form.email_column], contest: @contest)
          end
        end
      end
      redirect_to contest_path(@contest), notice: t("contestants.import.notice")
    else
      render :convert_csv, status: :unprocessable_entity
    end
  end

  def export
    authorize @contest

    @contestants = ranked_contestants(@contest)

    respond_to do |format|
      format.csv do
        response.headers["Content-Type"] = "text/csv"
        response.headers["Content-Disposition"] = "attachment; filename=#{contest.friendly_id}_results.csv"
      end
    end
  end

  def generate_qrcodes
    authorize @contest

    @contestants = @contest.contestants.sort_by { |contestant| contestant.name }
  end

  def generate_qrcodes_pdf
    authorize @contest

    @contestants = @contest.contestants.sort_by { |contestant| contestant.name }
    @nonav = true

    respond_to do |format|
      format.html { render layout: "blank" }
    end
  end

  def get_public_completion
    skip_authorization

    @contestant = Contestant.find_by_token_for(:token, params[:token])
    if !@contestant
      not_found and return
    end
    @contest = @contestant.contest
    I18n.locale = @contest.lang
    @puzzles = @contest.puzzles
    @completion = Completion.new
    @completion.completed = true
    @public = true

    render "completions/_form", locals: { completion: @completion, submit_text: t("helpers.buttons.create"), method: :post, url: "/public/p/#{params[:token]}" }
  end

  def post_public_completion
    skip_authorization

    @contestant = Contestant.find_by_token_for(:token, params[:token])
    if !@contestant
      not_found and return
    end
    @contest = @contestant.contest
    I18n.locale = @contest.lang

    @completion = Completion.new(completion_params)
    @completion.contest = @contest
    @completion.contestant = @contestant
    if !@completion.code.present?
      to_modify = true
      @completion.code = "incorrect-xZy"
    end
    if @completion.save
      extend_completions!(@completion.contestant)
      redirect_to "/public/p/#{params[:token]}/updated"
    else
      @puzzles = @contest.puzzles
      @public = true
      if to_modify
        @completion.code = nil
      end
      render "completions/_form", locals: { completion: @completion, submit_text: t("helpers.buttons.create"), method: :post, url: "/public/p/#{params[:token]}" }, status: :unprocessable_entity
    end
  end

  def public_completion_updated
    skip_authorization

    @contestant = Contestant.find_by_token_for(:token, params[:token])
    if !@contestant
      not_found and return
    end
    I18n.locale = @contestant.contest.lang
  end

  private

  def set_contest
    @contest = Contest.find(params[:contest_id])
  end

  def set_contestant
    @contestant = Contestant.find(params[:id])
  end

  def set_completions
    @completions = @contestant.completions.order(:time_seconds)
  end

  def contestant_params
    params.expect(contestant: [ :email, :name ])
  end

  def update_contestant_categories
    @contestant.categories.clear
    @contest.categories.each do |category|
      logger.info(params[:contestant]["category_#{category.id}".to_sym] == "1")
      if params[:contestant].key?("category_#{category.id}".to_sym) && params[:contestant]["category_#{category.id}".to_sym] == "1"
        @contestant.categories << category
      end
    end
    @contestant.save
  end

  def filter_contestants_per_category
    if params.key?(:category) && params[:category] != "-1"
      if params[:category] == "-2"
        @contestants = @contestants.select { |contestant| contestant.categories.size == 0 }
      else
        @contestants = @contestants.select { |contestant| contestant.categories.where(id: params[:category]).any? }
      end
    end
  end

  def completion_params
    params.expect(completion: [ :display_time_from_start, :completed, :missing_pieces, :remaining_pieces, :puzzle_id, :code ])
  end
end