class Datakick

# File lib/datakick.rb, line 12
def initialize
end

# File lib/datakick.rb, line 29
def add_image(gtin, image, image_type)
  params = {
    gtin: gtin,
    image: image,
    perspective: image_type
  }
  response = http_client.post("/api/items/#{gtin}/images?version=#{API_VERSION}", params)
  if response.success?
    JSON.parse(response.body)
  end
end

# File lib/datakick.rb, line 15
def item(gtin)
  response = http_client.get("/api/items/#{gtin}?version=#{API_VERSION}")
  if response.success?
    Item.new(JSON.parse(response.body))
  end
end

# File lib/datakick.rb, line 41
def items(params = {})
  response = http_client.get("/api/items?version=#{API_VERSION}", params)
  if response.success?
    JSON.parse(response.body).map do |item|
      Item.new(item)
    end
  end
end

# File lib/datakick.rb, line 50
def paginated_items(params, &block)
  response = http_client.get("/api/items?version=#{API_VERSION}", params)
  begin
    links = {}
    if response.success?
      JSON.parse(response.body).map do |item|
        yield Item.new(item)
      end

      # https://gist.github.com/davidcelis/5896686
      response.headers['Link'].to_s.split(',').each do |link|
        link.strip!
        parts = link.match(/<(.+)>; *rel="(.+)"/)
        links[parts[2]] = parts[1]
      end
    end
    # p links
  end while links["next"] and (response = http_client.get(links["next"]))
end

# File lib/datakick.rb, line 22
def update_item(gtin, attributes)
  response = http_client.put("/api/items/#{gtin}?version=#{API_VERSION}", attributes)
  if response.success?
    Item.new(JSON.parse(response.body))
  end
end

# File lib/datakick.rb, line 72
def http_client
  Faraday.new(url: API_HOST) do |conn|
    conn.request :multipart
    conn.request :url_encoded
    conn.adapter :net_http
  end
end