module Connectors
  class Project < Base
    include Helpers::InsertCommand,
      Helpers::ShowCommand,
      Helpers::ListCommand,
      Helpers::DeleteCommand,
      Helpers::UpdateCommand


    def initialize(db)
      @collection = db.collection('projects')
    end

    def is_project_exists?(project)
      self.project(project.id)
      return true
    rescue RecordNotFound => e
      return false
    end

    def projects_all
      list
    end

    def projects ids=nil, type=nil, fields=[]
      query = {}
      query['_id'] = {'$in' => ids} if ids
      query['type'] = 'multi' if type == :multi
      list(query, fields: fields)
    end

    # names - array of project names
    def project_names_with_envs(names=nil)
      # db.projects.aggregate({$unwind:"$deploy_envs"}, {$project:{"deploy_envs.identifier":1}}, {$group:{_id:"$_id", envs: {$addToSet: "$deploy_envs.identifier"}}})
      q = []
      unless names.nil?
        q.push({
          '$match' => {
            '_id' => {
              '$in' => names
            }
          }
        })
      end
      q.push({
        '$unwind' => '$deploy_envs'
      })
      q.push({
        '$project' => {
          'deploy_envs.identifier' => 1
        }
      })
      q.push({
        '$group' => {
          '_id' => '$_id',
          'envs' => {
            '$addToSet' => '$deploy_envs.identifier'
          }
        }
      })
      res = @collection.aggregate(q)
      r = {}
      res.each do |ar|
        r[ar['_id']] = ar['envs']
      end
      return r
    end

    def projects_by_image(image)
      list('deploy_envs.image' => image)
    end

    def projects_by_user(user)
      list('deploy_envs.users' => user)
    end

    def check_project_auth(project_id, env, user_id)
      project = show(project_id)
      raise InvalidPrivileges.new("User '#{user_id}' unauthorized to work with project '#{project_id}'") unless project.check_authorization(user_id, env)
      project
    end

    private

    def model_from_bson(bson)
      ::Project.create_from_bson(bson)
    end
  end

end