continue previously started import if there was any

app/importer.rb

···
 require 'didkit'
 require 'minisky'
 
+require_relative 'models/import'
 require_relative 'models/like'
 require_relative 'models/post'
 require_relative 'models/user'
···
   end
 
   def import_likes(time_limit = nil)
+    import = @user.import || @user.create_import!
+
     params = { repo: @did, collection: 'app.bsky.feed.like', limit: 100 }
+    params[:cursor] = import.cursor if import.cursor
+
     count = 0
 
     loop do
···
       process_likes(records)
       params[:cursor] = cursor
 
+      import.update!(cursor: cursor)
+
       break if !cursor
       break if time_limit && records.any? { |x| Time.parse(x['value']['createdAt']) < time_limit }
     end
+
+    import.update!(cursor: nil)
   end
 
   def process_likes(likes)

app/models/import.rb

···
+require 'active_record'
+
+require_relative 'user'
+
+class Import < ActiveRecord::Base
+  belongs_to :user
+end

app/models/user.rb

···
 require 'active_record'
 
+require_relative 'import'
 require_relative 'like'
 require_relative 'post'
 
···
 
   has_many :posts
   has_many :likes, foreign_key: 'actor_id'
+  has_one :import
 end

db/migrate/20250831202829_create_imports.rb

···
+class CreateImports < ActiveRecord::Migration[7.2]
+  def change
+    create_table :imports do |t|
+      t.integer "user_id", null: false
+      t.string "cursor"
+    end
+
+    add_index :imports, :user_id, unique: true
+  end
+end

db/schema.rb

···
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2025_08_30_210139) do
+ActiveRecord::Schema[7.2].define(version: 2025_08_31_202829) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
+
+  create_table "imports", force: :cascade do |t|
+    t.integer "user_id", null: false
+    t.string "cursor"
+    t.index ["user_id"], name: "index_imports_on_user_id", unique: true
+  end
 
   create_table "likes", force: :cascade do |t|
     t.integer "actor_id", null: false