class TodosController < ApplicationController
  before_action :set_todo, only: %i[show update destroy]

  def index
    render json: Todo.order(created_at: :desc)
  end

  def show
    render json: @todo
  end

  def create
    todo = Todo.new(todo_params)
    todo.save!
    render json: todo, status: :created
  rescue ActiveRecord::RecordInvalid => error
    render json: { errors: error.record.errors }, status: :unprocessable_entity
  end

  def update
    @todo.update!(todo_params)
    render json: @todo
  rescue ActiveRecord::RecordInvalid => error
    render json: { errors: error.record.errors }, status: :unprocessable_entity
  end

  def destroy
    @todo.destroy!
    head :no_content
  end

  private

  def set_todo
    @todo = Todo.find(params[:id])
  end

  def todo_params
    params.expect(todo: %i[title completed])
  end
end