-- Migration: Add rounded_hours to tticket_worklog for prepaid card billing

-- Add rounded_hours column (actual hours deducted from prepaid card after rounding)
ALTER TABLE tticket_worklog
ADD COLUMN IF NOT EXISTS rounded_hours DECIMAL(5,2);

COMMENT ON COLUMN tticket_worklog.rounded_hours IS 'Rounded hours (actual amount deducted from prepaid card). NULL if not prepaid or no rounding applied.';

-- Backfill: Set rounded_hours = hours for existing prepaid entries
UPDATE tticket_worklog
SET rounded_hours = hours
WHERE prepaid_card_id IS NOT NULL
  AND rounded_hours IS NULL;