-- S3-compatible storage for RouterOS backups

CREATE TABLE IF NOT EXISTS backup_storage_settings (
  id BIGINT PRIMARY KEY CHECK (id = 1),
  provider TEXT NOT NULL DEFAULT 'local' CHECK (provider IN ('local', 's3')),
  s3_endpoint TEXT NOT NULL DEFAULT '',
  s3_region TEXT NOT NULL DEFAULT 'us-east-1',
  s3_bucket TEXT NOT NULL DEFAULT '',
  s3_prefix TEXT NOT NULL DEFAULT 'mikrotik',
  s3_access_key_id TEXT NOT NULL DEFAULT '',
  s3_secret_access_key TEXT NOT NULL DEFAULT '',
  s3_force_path_style BOOLEAN NOT NULL DEFAULT TRUE,
  keep_local_copy BOOLEAN NOT NULL DEFAULT TRUE,
  last_test_at TIMESTAMPTZ,
  last_test_error TEXT,
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

INSERT INTO backup_storage_settings (id)
VALUES (1)
ON CONFLICT (id) DO NOTHING;

ALTER TABLE backup_entries
  ADD COLUMN IF NOT EXISTS storage TEXT NOT NULL DEFAULT 'local';

ALTER TABLE backup_entries
  ADD COLUMN IF NOT EXISTS s3_key TEXT;

ALTER TABLE backup_entries
  ADD COLUMN IF NOT EXISTS s3_etag TEXT;

ALTER TABLE backup_entries
  ADD COLUMN IF NOT EXISTS upload_error TEXT;

DO $$
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM pg_constraint WHERE conname = 'backup_entries_storage_check'
  ) THEN
    ALTER TABLE backup_entries
      ADD CONSTRAINT backup_entries_storage_check
      CHECK (storage IN ('local', 's3', 'both'));
  END IF;
END $$;