class ChainsController < ApplicationController
  before_action :set_chain, only: %i[ show update destroy ]

  # GET /chains
  def index
    @chains = Chain.all

    render json: @chains
  end

  # GET /chains/1
  def show
    render json: @chain
  end

  # POST /chains
  def create
    @chain = Chain.new(chain_params)

    if @chain.save
      render json: @chain, status: :created, location: @chain
    else
      render json: @chain.errors, status: :unprocessable_content
    end
  end

  # PATCH/PUT /chains/1
  def update
    if @chain.update(chain_params)
      render json: @chain
    else
      render json: @chain.errors, status: :unprocessable_content
    end
  end

  # DELETE /chains/1
  def destroy
    @chain.destroy!
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_chain
      @chain = Chain.find(params.expect(:id))
    end

    # Only allow a list of trusted parameters through.
    def chain_params
      params.expect(chain: [ :name ])
    end
end