require "google/cloud/storage"

class Project < ApplicationRecord
  def self.storage_bucket
    @storage_bucket ||= begin
      config = Rails.configuration.gcs
      storage = Google::Cloud::Storage.new project_id: config['project_id'],
      credentials: config['keyfile']
      storage.bucket config['bucket']
    end
  end

  # validates :name, presence: true
  # validates :description, presence: true

  attr_accessor :image

  private

  after_create :upload_images
  before_update :upload_images, if: :image

  def upload_images
    upload_image("lg", "612x612")
    upload_image("md", "408x408")
    upload_image("sm", "340x340")
    upload_hero("lg", 1920, 700)
    upload_hero("mdlg", 1350, 700)
    upload_hero("md", 1200, 700)
    upload_hero("sm", 768, 700)
  end

  # def delete_image
  #   image_uri = URI.parse image_lg_url

  #   if image_uri.host == "#{Project.storage_bucket.name}.storage.googleapis.com"
  #     image_path = image_uri.path.sub("/", "")

  #     file =  Project.storage_bucket.file image_path
  #     file.delete
  #   end
  # end

 def upload_hero(type, width, height)
    hero = MiniMagick::Image.new(image.path)

    hero.combine_options do |i|
      i.gravity(:center)
      i.crop "#{width}x#{height}+0+0!"
    end

    file = Project.storage_bucket.create_file \
      hero.path,
      "images/#{id}/hero/#{type}_#{image.original_filename}",
      content_type: image.content_type,
      acl: "public"

      update_columns "hero_#{type}_url": file.public_url
  end

  def upload_image(type, size)
    img = MiniMagick::Image.new(image.path)
    img.resize(size)

    file = Project.storage_bucket.create_file \
      img.path,
      "images/#{id}/thumbnail/#{type}_#{image.original_filename}",
      content_type: image.content_type,
      acl: "public"

      update_columns "image_#{type}_url": file.public_url
  end

end