require 'faraday'
require 'faraday_middleware'
require 'json'
require 'active_support/core_ext/hash/indifferent_access'

require 'dato/repo/field'
require 'dato/repo/item_type'
require 'dato/repo/menu_item'
require 'dato/repo/site'
require 'dato/repo/upload_request'
require 'dato/repo/user'
require 'dato/repo/item'

module Dato
  class Client
    REPOS = {
      fields: Repo::Field,
      item_types: Repo::ItemType,
      menu_items: Repo::MenuItem,
      site: Repo::Site,
      upload_requests: Repo::UploadRequest,
      users: Repo::User,
      items: Repo::Item,
    }

    attr_reader :token, :domain, :schema

    def initialize(token, domain: 'http://site-api.datocms.com')
      @domain = domain
      @token = token
    end

    REPOS.each do |method_name, repo_klass|
      define_method method_name do
        instance_variable_set(
          "@#{method_name}",
          instance_variable_get("@#{method_name}") ||
          repo_klass.new(self)
        )
      end
    end

    def request(*args)
      begin
        connection.send(*args).body.with_indifferent_access
      rescue Faraday::ClientError => e
        body = JSON.parse(e.response[:body])
        puts JSON.pretty_generate(body)
        raise e
      end
    end

    private

    def connection
      options = {
        url: domain,
        headers: {
          'Accept' => "application/json",
          'Content-Type' => "application/json",
          'Authorization' => "Bearer #{@token}"
        }
      }

      @connection ||= Faraday.new(options) do |c|
        c.request :json
        c.response :json, content_type: /\bjson$/
        c.response :raise_error
        c.adapter :net_http
      end
    end
  end
end