submit-social-housing-lettings-and-sales-data/lib/tasks/fix_sales_logs_with_invalid_initialpurchase_lasttransaction.rake

desc "We tightened the validation between initial purchase date in 2026, last transaction date and sale date so the two can no longer be equal. To avoid invalid logs we clear initialpurchase if it equals saledate and if initialpurchase = lasttransaction we clear both"
task fix_sales_logs_with_invalid_initialpurchase_lasttransaction: :environment do
  initial_purchase_equal_lasttransaction_logs = SalesLog.filter_by_year_or_later(2026).where("initialpurchase = lasttransaction")
  lasttransaction_equal_saledate_logs = SalesLog.filter_by_year_or_later(2026).where("lasttransaction = saledate")

  # this one must happen first since this will always result in a log that passes date validations
  puts "Updating #{initial_purchase_equal_lasttransaction_logs.count} logs where initialpurchase = lasttransaction, #{initial_purchase_equal_lasttransaction_logs.map(&:id)}"
  initial_purchase_equal_lasttransaction_logs.update!(initialpurchase: nil, lasttransaction: nil)

  # this one could fail if lasttransaction == saledate == initialpurchase, but the above case will have already reset these logs
  puts "Updating #{lasttransaction_equal_saledate_logs.count} logs where lasttransaction = saledate, #{lasttransaction_equal_saledate_logs.map(&:id)}"
  lasttransaction_equal_saledate_logs.update!(lasttransaction: nil)

  puts "Done"
end