# frozen_string_literal: true

require "sinatra"
require "puma"
require 'route_downcaser'

class RestServer < Sinatra::Base
  set :server, :puma
  enable :logging if ENV["debug"] == "true"
  set :bind, "0.0.0.0"
  use RouteDowncaser::DowncaseRouteMiddleware

  def has_id?(model, id)
    Entities.models[model].key?(id)
  end

  def not_have(id)
    [404, JSON.generate({ error: "'#{id}' not found" })]
  end

  get "/" do
    summary = { models: Entities.models.keys.to_s }
    summary[:db] = MongoClient.client.summary.to_s if ENV['mongodb']
    JSON.generate(summary)
  rescue Exception => e
    [500, e.message]
  end

  Entities.models.each_key do |model|
    post "/#{model.downcase}" do
      id = SecureRandom.uuid
      data = JSON.parse(request.body.read)
      if ENV['mongodb']
        MongoClient.insert(model, data, id)
      else
        Entities.models[model][id] = data
      end
      [201, id]
    end

    get "/#{model.downcase}" do
      puts request.path.downcase
      if ENV['mongodb']
        if params == {}
          JSON.generate(MongoClient.get_all(model))
        else
          [200, JSON.generate(MongoClient.find_all(model, params))]
        end
      else
        return [200, Entities.models[model].to_s] if params == {}

        Entities.models[model].values.find_all { |val| val[params.keys[0]] == params.values[0] }
      end
    rescue Exception => e
      [404, "Nothing found using #{params}. Only first param considered. #{e.message}"]
    end

    get "/#{model.downcase}/:id" do |id|
      if ENV['mongodb']
        results = MongoClient.find_all(model, { id: id})
        return not_have(id) unless results
        JSON.generate(results.first)
      else
        return not_have(id) unless has_id?(model, id)

        JSON.generate(Entities.models[model][id])
      end
    end

    put "/#{model.downcase}/:id" do |id|
      data = JSON.parse(request.body.read)
      if ENV['mongodb']
        results = MongoClient.find(model, id)
        return not_have(id) unless results.count > 0
        MongoClient.update(model, id, data)
      else
        return not_have(id) unless has_id?(model, id)

        Entities.models[model][id] = data
      end
      204
    end

    delete "/#{model.downcase}/:id" do |id|
      if ENV['mongodb']
        results = MongoClient.find(model, id)
        return not_have(id) unless results.count > 0
        MongoClient.delete(model, id)
      else
        return not_have(id) unless has_id?(model, id)

        Entities.models[model].delete(id)
      end
      204
    end
  end
end