Begin writing import as rake task

.gitignore

@@ -39,3 +39,6 @@
 /node_modules
 coverage
 .DS_Store
+
+# Ignore import files directory for data from old app
+/import_files

Gemfile

@@ -41,6 +41,11 @@ gem "thruster", require: false
 
 # Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
 # gem "image_processing", "~> 1.2"
+#
+# Needed for import process; remove when no longer needed
+gem "csv"
+
+# Use RSpec for testing [
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem

Gemfile.lock

@@ -89,6 +89,7 @@ GEM
     crass (1.0.6)
     cssbundling-rails (1.4.1)
       railties (>= 6.0.0)
+    csv (3.3.2)
     date (3.4.1)
     debug (1.10.0)
       irb (~> 1.10)
@@ -364,6 +365,7 @@ DEPENDENCIES
   bootsnap
   brakeman
   cssbundling-rails
+  csv
   debug
   factory_bot_rails
   importmap-rails

lib/tasks/import_data.rake

@@ -0,0 +1,54 @@
+namespace :import_data do
+  # Import data from the old app from CSV files
+  # Files will be located in the import_files directory
+  # Files will not be committed to the repository
+  require "csv"
+
+  # This is a starting point for the import process
+  # We will refactor for elegance
+  # It is not idempotent; it presumes a clean database except for seeds
+
+  desc "All"
+  task all: [ :regions, :providers, :topics ]
+
+  desc "Import Providers and Associate With Regions"
+  task providers: :environment do
+    file_path = Rails.root.join("import_files", "Providers.csv")
+    data = CSV.read(file_path, headers: true)
+    data.each do |row|
+      # TODO: add old_provider_id to Provider model
+      provider = Provider.find_or_create_by!(name: row["Provider_Name"], provider_type: row["Provider_Type"])
+      region = Region.find_or_create_by!(name: row["region_name"])
+      # TODO: we need the association table
+      # Associate the provider with the region if it is not already associated
+      # unless provider.regions.include?(region)
+      #   provider.regions << region
+      # end
+      puts "Provider #{provider.name} associated with region #{region.name}"
+
+      user = User.find_or_create_by!(email_address: "#{row["Provider_Name"].underscore.downcase}@update.me", password_digest: BCrypt::Password.create(row["Provider_Password"]), is_admin: false)
+      user.update(provider_id: provider.id)
+      puts "User #{user.email_address} created"
+    end
+  end
+
+  desc "Import Topics and their associations"
+  task topics: :environment do
+    file_path = Rails.root.join("import_files", "Topics.csv")
+    data = CSV.read(file_path, headers: true)
+    data.each do |row|
+      # look up provider by old_provider_id
+      provider = Provider.find_by(old_provider_id: row["Provider_ID"])
+      # Language IDs should correspond to the IDs in old app
+      # TODO: verify before final import
+      topic = Topic.find_or_create_by!(name: row["Topic_Name"], provider_id: provider.id, description: row["Topic_Desc"],
+          language_id: row["Language_ID"], uid: row["Topic_UID"], state: determine_state(row["Topic_Archived"], old_topic_id: row["topic_id"]))
+      puts "Topic #{topic.name} created"
+    end
+  end
+
+  def determine_state(archived)
+    # TODO: validate against state enumerable
+    archived ? "archived" : "published"
+  end
+end