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pulibrary / pdc_describe / 3da2244c-e957-4d79-aa3e-73e6ff42a18b

19 Sep 2024 01:56PM UTC coverage: 96.166% (-0.02%) from 96.19%
3da2244c-e957-4d79-aa3e-73e6ff42a18b

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5 of 6 new or added lines in 2 files covered. (83.33%)

1 existing line in 1 file now uncovered.

3311 of 3443 relevant lines covered (96.17%)

410.76 hits per line

Source File
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95.27
/app/models/work_activity.rb
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# frozen_string_literal: true
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require_relative "../lib/diff_tools"
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# rubocop:disable Metrics/ClassLength
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class WorkActivity < ApplicationRecord
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  MESSAGE = "COMMENT" # TODO: Migrate existing records to "MESSAGE"; then close #825.
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  NOTIFICATION = "NOTIFICATION"
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  MESSAGE_ACTIVITY_TYPES = [MESSAGE, NOTIFICATION].freeze
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  CHANGES = "CHANGES"
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  DATACITE_ERROR = "DATACITE-ERROR"
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  FILE_CHANGES = "FILE-CHANGES"
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  MIGRATION_START = "MIGRATION_START"
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  MIGRATION_COMPLETE = "MIGRATION_COMPLETE"
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  PROVENANCE_NOTES = "PROVENANCE-NOTES"
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  SYSTEM = "SYSTEM"
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  CHANGE_LOG_ACTIVITY_TYPES = [CHANGES, FILE_CHANGES, PROVENANCE_NOTES, SYSTEM, DATACITE_ERROR, MIGRATION_COMPLETE].freeze
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  USER_REFERENCE = /@[\w]*/ # e.g. @xy123
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  include Rails.application.routes.url_helpers
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  belongs_to :work
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  has_many :work_activity_notifications, dependent: :destroy
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  def self.add_work_activity(work_id, message, user_id, activity_type:, created_at: nil)
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    activity = WorkActivity.new(
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      work_id:,
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      activity_type:,
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      message:,
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      created_by_user_id: user_id,
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      created_at: # If nil, will be set by activerecord at save.
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    )
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    activity.save!
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    activity.notify_users
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    activity
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  end
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  def self.activities_for_work(work_id, activity_types)
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    where(work_id:, activity_type: activity_types)
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  end
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  def self.messages_for_work(work_id)
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    activities_for_work(work_id, MESSAGE_ACTIVITY_TYPES)
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  end
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  def self.changes_for_work(work_id)
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    activities_for_work(work_id, CHANGE_LOG_ACTIVITY_TYPES)
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  end
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  # Log notifications for each of the users references on the activity
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  def notify_users
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    users_referenced.each do |uid|
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      user_id = User.where(uid:).first&.id
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      if user_id.nil?
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        notify_group(uid)
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      else
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        WorkActivityNotification.create(work_activity_id: id, user_id:)
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      end
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    end
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  end
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  def notify_group(groupid)
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    group = Group.where(code: groupid).first
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    if group.nil?
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      Rails.logger.info("Message #{id} for work #{work_id} referenced an non-existing user: #{groupid}")
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    else
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      group.administrators.each do |admin|
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        WorkActivityNotification.create(work_activity_id: id, user_id: admin.id)
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      end
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    end
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  end
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  # Returns the `uid` of the users referenced on the activity (without the `@` symbol)
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  def users_referenced
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    message.scan(USER_REFERENCE).map { |at_uid| at_uid[1..-1] }
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  end
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  def created_by_user
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    return nil unless created_by_user_id
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    User.find(created_by_user_id)
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  end
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  def message_event_type?
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    MESSAGE_ACTIVITY_TYPES.include? activity_type
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  end
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  def log_event_type?
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    CHANGE_LOG_ACTIVITY_TYPES.include? activity_type
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  end
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  def renderer
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    @renderer ||= begin
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                    klass = if activity_type == CHANGES
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                              MetadataChanges
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                            elsif activity_type == FILE_CHANGES
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                              FileChanges
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                            elsif activity_type == MIGRATION_COMPLETE
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                              Migration
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                            elsif activity_type == PROVENANCE_NOTES
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                              ProvenanceNote
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                            elsif CHANGE_LOG_ACTIVITY_TYPES.include?(activity_type)
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                              OtherLogEvent
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                            else
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                              Message
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                            end
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                    klass.new(self)
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                  end
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  end
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  delegate :to_html, to: :renderer
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  class Renderer
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    def initialize(work_activity)
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      @work_activity = work_activity
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    end
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    UNKNOWN_USER = "Unknown user outside the system"
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    DATE_TIME_FORMAT = "%B %d, %Y %H:%M"
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    DATE_FORMAT = "%B %d, %Y"
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    SORTABLE_DATE_TIME_FORMAT = "%Y-%m-%d %H:%M"
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    def to_html
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      title_html + "<span class='message-html'>#{body_html.chomp}</span>"
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    end
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    def created_by_user_html
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      return UNKNOWN_USER unless @work_activity.created_by_user
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      "#{@work_activity.created_by_user.given_name_safe} (@#{@work_activity.created_by_user.uid})"
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    end
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    def created_sortable_html
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      @work_activity.created_at.time.strftime(SORTABLE_DATE_TIME_FORMAT)
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    end
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    def created_updated_html
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      created = @work_activity.created_at.time.strftime(DATE_TIME_FORMAT)
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      updated = @work_activity.updated_at.time.strftime(DATE_TIME_FORMAT)
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      created_date = @work_activity.created_at.time.strftime(DATE_FORMAT)
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      updated_date = @work_activity.updated_at.time.strftime(DATE_FORMAT)
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      if created_date == updated_date
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        created
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      else
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        "#{created} (backdated event created #{updated})"
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      end
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    end
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    def title_html
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      "<span class='activity-history-title'>#{created_updated_html} by #{created_by_user_html}</span>"
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    end
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  end
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  class MetadataChanges < Renderer
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    # Returns the message formatted to display _metadata_ changes that were logged as an activity
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    def body_html
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      message_json = JSON.parse(@work_activity.message)
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      # Messages should consistently be Arrays of Hashes, but this might require a migration from legacy field records
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      messages = if message_json.is_a?(Array)
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                   message_json
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                 else
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                   Array.wrap(message_json)
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                 end
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      elements = messages.map do |message|
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        markup = if message.is_a?(Hash)
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                   message.keys.map do |field|
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                     mapped = message[field].map { |value| change_value_html(value) }
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                     "<details class='message-html'><summary class='show-changes'>#{field&.titleize}</summary>#{mapped.join}</details>"
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                   end
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                 else
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                   # For handling cases where WorkActivity#message only contains Strings, or Arrays of Strings
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                   [
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                     "<details class='message-html'><summary class='show-changes'></summary>#{message}</details>"
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                   ]
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                 end
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        markup.join
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      end
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      elements.flatten.join
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    end
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    def change_value_html(value)
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      if value["action"] == "changed"
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        DiffTools::SimpleDiff.new(value["from"], value["to"]).to_html
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      else
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        "old change"
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      end
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    end
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  end
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  class FileChanges < Renderer
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    # Returns the message formatted to display _file_ changes that were logged as an activity
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    def body_html
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      changes = JSON.parse(@work_activity.message)
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      if changes.is_a?(Hash)
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        changes = [changes]
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      end
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      files_added = changes.select { |v| v["action"] == "added" }
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      files_deleted = changes.select { |v| v["action"] == "removed" }
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      files_replaced = changes.select { |v| v["action"] == "replaced" }
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      changes_html = []
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      unless files_added.empty?
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        label = "Files Added: "
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        label += files_added.length.to_s
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        changes_html << "<tr><td>#{label}</td></tr>"
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      end
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      unless files_deleted.empty?
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        label = "Files Deleted: "
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        label += files_deleted.length.to_s
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        changes_html << "<tr><td>#{label}</td></tr>"
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      end
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      unless files_replaced.empty?
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        label = "Files Replaced: "
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        label += files_replaced.length.to_s
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        changes_html << "<tr><td>#{label}</td></tr>"
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      end
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      "<table>#{changes_html.join}</table>"
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    end
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  end
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  class Migration < Renderer
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    # Returns the message formatted to display _file_ changes that were logged as an activity
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    def body_html
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      changes = JSON.parse(@work_activity.message)
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      "<p>#{changes['message']}</p>"
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    end
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  end
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  class BaseMessage < Renderer
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    def body_html
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      text = user_refernces(@work_activity.message)
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      mark_down_to_html(text)
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    end
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    def mark_down_to_html(text_in)
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      # allow ``` for code blocks (Kramdown only supports ~~~)
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      text = text_in.gsub("```", "~~~")
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      Kramdown::Document.new(text).to_html
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    end
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    def user_refernces(text_in)
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      # convert user references to user links
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      text_in.gsub(USER_REFERENCE) do |at_uid|
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        uid = at_uid[1..-1]
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        if uid
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          group = Group.find_by(code: uid)
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          if group
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            "<a class='message-user-link' title='#{group.title}' href='#{@work_activity.group_path(group)}'>#{group.title}</a>"
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          else
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            user = User.find_by(uid:)
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            user_info = if user
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                          user.given_name_safe
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                        else
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                          uid
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                        end
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            "<a class='message-user-link' title='#{user_info}' href='#{@work_activity.users_path}/#{uid}'>#{at_uid}</a>"
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          end
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        else
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          Rails.logger.warn("Failed to extract the user ID from #{uid}")
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          UNKNOWN_USER
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        end
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      end
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    end
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  end
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  class OtherLogEvent < BaseMessage
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  end
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  class Message < BaseMessage
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    # Override the default:
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    def created_by_user_html
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      return UNKNOWN_USER unless @work_activity.created_by_user
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      user = @work_activity.created_by_user
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      "#{user.given_name_safe} (@#{user.uid})"
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    end
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    def title_html
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      "<span class='activity-history-title'>#{created_by_user_html} at #{created_updated_html}</span>"
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    end
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  end
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  class ProvenanceNote < BaseMessage
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    def body_html
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      message_hash = JSON.parse(@work_activity.message)
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      text = user_refernces(message_hash["note"])
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      message = mark_down_to_html(text)
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      change_label = message_hash["change_label"]&.titleize
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      change_label ||= "Change"
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      # TODO: Make this show the change label with the note under see changes
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      "<details class='message-html'><summary class='show-changes'>#{change_label}</summary>#{message}</details>"
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    end
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  end
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end
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# rubocop:enable Metrics/ClassLength
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