module Devops
  module API2_0
    module Routes
      module UserRoutes

        def self.registered(app)

          # Get users list
          #
          # * *Request*
          #   - method : GET
          #   - headers :
          #     - Accept: application/json
          #
          # * *Returns* :
          #   [
          #     {
          #       "email": "test@test.test",
          #       "privileges": {
          #         "flavor": "r",
          #         "group": "r",
          #         "image": "r",
          #         "project": "r",
          #         "server": "r",
          #         "key": "r",
          #         "user": "",
          #         "filter": "r",
          #         "network": "r",
          #         "provider": "r",
          #         "script": "r",
          #         "templates": "r"
          #       },
          #       "id": "test"
          #     }
          #   ]
          app.get_with_headers "/users", :headers => [:accept] do#, &Devops::API2_0::Handler::User.get_users
            check_privileges("user", "r")
            users = Devops::API2_0::Handler::User.new.users.map {|i| h = i.to_hash; h.delete("password"); h}
            json users
          end

          # Create user
          #
          # * *Request*
          #   - method : POST
          #   - headers :
          #     - Accept: application/json
          #     - Content-Type: application/json
          #   - body :
          #   {
          #     "username": "user name",
          #     "email": "user email",
          #     "password": "user password"
          #   }
          #
          # * *Returns* :
          #   201 - Created
          app.post_with_headers "/user", :headers => [:accept, :content_type] do#, &Devops::API2_0::Handler::User.create_user
            check_privileges("user", "w")
            user = create_object_from_json_body
            ["username", "password", "email"].each do |p|
              check_string(user[p], "Parameter '#{p}' must be a not empty string")
            end
            Devops::API2_0::Handler::User.new.create(user)
            create_response("Created", nil, 201)
          end

          hash = {}
          # Delete user
          #
          # * *Request*
          #   - method : DELETE
          #   - headers :
          #     - Accept: application/json
          #
          # * *Returns* :
          #   200 - Deleted
          hash["DELETE"] = lambda {
            check_privileges("user", "w")
            projects = Devops::Db.connector.projects_by_user params[:user]
            if !projects.empty?
              str = ""
              projects.each do |p|
                p.deploy_envs.each do |e|
                  str+="#{p.id}.#{e.identifier} " if e.users.include? params[:user]
                end
              end
              logger.info projects
              raise DependencyError.new "Deleting is forbidden: User is included in #{str}"
              #return [400, "Deleting is forbidden: User is included in #{str}"]
            end

            Devops::API2_0::Handler::User.new.delete(params[:user])
            create_response("User '#{params[:user]}' removed")
          }

          # Change user privileges
          #
          # * *Request*
          #   - method : PUT
          #   - headers :
          #     - Accept: application/json
          #     - Content-Type: application/json
          #   - body :
          #   {
          #     "cmd": "command or all", -> if empty, set default privileges
          #     "privileges": "priv" -> 'rwx' or ''
          #   }
          #
          # * *Returns* :
          #   200 - Updated
          hash["PUT"] = lambda {
            check_privileges("user", "w")
            data = create_object_from_json_body
            cmd = check_string(data["cmd"], "Parameter 'cmd' should be a not empty string", true) || ""
            privileges = check_string(data["privileges"], "Parameter 'privileges' should be a not empty string", true) || ""
            Devops::API2_0::Handler::User.new.change_user_privileges(params[:user], cmd, privileges)
            create_response("Updated")
          }
          app.multi_routes "/user/:user", {:headers => [:accept, :content_type]}, hash

          # Change user email/password
          #
          # * *Request*
          #   - method : PUT
          #   - headers :
          #     - Accept: application/json
          #     - Content-Type: application/json
          #   - body :
          #   {
          #     "email/password": "new user email/password",
          #   }
          #
          # * *Returns* :
          #   200 - Updated
          app.put_with_headers %r{\A/user/#{DevopsConfig::OBJECT_NAME}/(email|password)\z}, :headers => [:accept, :content_type] do#, &Devops::API2_0::Handler::User.change_user_email_or_password
            check_privileges("user", "w")
            action = File.basename(request.path)
            u = File.basename(File.dirname(request.path))
            raise InvalidPrivileges.new("Access denied for '#{request.env['REMOTE_USER']}'") if u == Devops::Model::User::ROOT_USER_NAME and request.env['REMOTE_USER'] != Devops::Model::User::ROOT_USER_NAME

            check_privileges("user", "w") unless request.env['REMOTE_USER'] == u

            body = create_object_from_json_body
            p = check_string(body[action], "Parameter '#{action}' must be a not empty string")
            h = Devops::API2_0::Handler::User.new
            h.send("change_#{action}", body.merge('user_id' => u))
            create_response("Updated")
          end

          puts "User routes initialized"
        end

      end
    end
  end
end