class ReservationsController < ApplicationController
  before_action :set_company
  before_action :set_reservation, only: %i[show edit update destroy]

  layout :determine_layout
  # GET /reservations or /reservations.json
  def index
    @reservations = Reservation.includes(:team, :customer).where(company: @company)
    @reservations = ActiveModelSerializers::SerializableResource.new(@reservations).as_json
  end

  # GET /reservations/1 or /reservations/1.json
  def show; end

  # GET /reservations/new
  def new
    @reservation = Reservation.new
    @reservation.team = @company.teams.first
    @customers = @company.customers
  end

  # GET /reservations/1/edit
  def edit; end

  # POST /reservations or /reservations.json
  def create
    @reservation = @company.reservations.new(
      reservation_params.except(:customer_id, :customer_birth_year)
    )

    # Find or create customer
    find_or_create_customer
    assign_customer_to_reservation

    if @reservation.save
      redirect_to @reservation, notice: t('.reservation_created')
    else
      @customers = @company.customers
      render :new, status: :unprocessable_entity
    end
  rescue ActiveRecord::RecordInvalid => e
    @reservation.errors.add(:base, "Failed to save customer: #{e.message}")
    @customers = @company.customers
    render :new, status: :unprocessable_entity
  end

  # PATCH/PUT /reservations/1 or /reservations/1.json
  def update
    respond_to do |format|
      if @reservation.update(reservation_params)
        format.html { redirect_to reservation_url(@reservation), notice: t('.reservation_updated') }
        format.json { render :show, status: :ok, location: @reservation }
      else
        format.html { render :edit, status: :unprocessable_entity }
        format.json { render json: @reservation.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /reservations/1 or /reservations/1.json
  def destroy
    @reservation.destroy!

    respond_to do |format|
      format.html { redirect_to reservations_url, notice: t('.reservation_destroyed') }
      format.json { head :no_content }
    end
  end

  private

  # Use callbacks to share common setup or constraints between actions.
  def set_reservation
    @reservation = Reservation.find(params[:id])
  end

  # Only allow a list of trusted parameters through.
  def reservation_params
    params.require(:reservation).permit(
      :customer_id,
      :team_id,
      :start_time,
      :end_time,
      :title,
      :description,
      :customer_first_name,
      :customer_surname,
      :customer_original_phone,
      :customer_birth_year # Keep this in permitted params
    )
  end

  def determine_layout
    action_name == 'index' ? 'calendar' : 'application'
  end

  def find_or_create_customer
    customer_params = build_customer_attributes

    @customer = if new_customer?
                  Customer.create!(customer_params)
                else
                  find_or_initialize_customer(customer_params)
                end
  end

  def build_customer_attributes
    {
      first_name: params[:reservation][:customer_first_name],
      surname: params[:reservation][:customer_surname],
      original_phone: params[:reservation][:customer_original_phone],
      phone: params[:reservation][:customer_original_phone],
      birthyear: params[:reservation][:customer_birth_year],
      company_id: @company.id
    }
  end

  def new_customer?
    params[:reservation][:customer_id].present? &&
      params[:reservation][:customer_id].end_with?('__new')
  end

  def find_or_initialize_customer(attributes)
    Customer.find_or_create_by!(
      first_name: attributes[:first_name],
      surname: attributes[:surname],
      original_phone: attributes[:original_phone]
    ) do |customer|
      customer.assign_attributes(attributes)
    end
  end

  def assign_customer_to_reservation
    @reservation.customer_first_name = @customer.first_name
    @reservation.customer_surname = @customer.surname
    @reservation.customer_original_phone = @customer.original_phone
  end
end