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diff --git a/services/backup/src/service/handlers/add_attachments.rs b/services/backup/src/service/handlers/add_attachments.rs
--- a/services/backup/src/service/handlers/add_attachments.rs
+++ b/services/backup/src/service/handlers/add_attachments.rs
@@ -1,13 +1,83 @@
use tonic::Status;
+use tracing::debug;
+use super::handle_db_error;
use super::proto;
-use crate::{constants::ATTACHMENT_HOLDER_SEPARATOR, database::DatabaseClient};
+use crate::{
+ constants::{ATTACHMENT_HOLDER_SEPARATOR, LOG_DATA_SIZE_DATABASE_LIMIT},
+ database::{DatabaseClient, LogItem},
+};
pub async fn handle_add_attachments(
db: &DatabaseClient,
request: proto::AddAttachmentsRequest,
) -> Result<(), Status> {
- unimplemented!()
+ let proto::AddAttachmentsRequest {
+ user_id,
+ backup_id,
+ log_id,
+ holders,
+ } = request;
+
+ if user_id.is_empty() {
+ return Err(Status::invalid_argument(
+ "user id required but not provided",
+ ));
+ }
+ if backup_id.is_empty() {
+ return Err(Status::invalid_argument(
+ "backup id required but not provided",
+ ));
+ }
+ if holders.is_empty() {
+ return Err(Status::invalid_argument(
+ "holders required but not provided",
+ ));
+ }
+
+ if log_id.is_empty() {
+ let backup_item_result = db
+ .find_backup_item(&user_id, &backup_id)
+ .await
+ .map_err(handle_db_error)?;
+ let mut backup_item = backup_item_result.ok_or_else(|| {
+ debug!("Backup item not found");
+ Status::not_found("Backup item not found")
+ })?;
+
+ add_new_attachments(&mut backup_item.attachment_holders, &holders);
+
+ db.put_backup_item(backup_item)
+ .await
+ .map_err(handle_db_error)?;
+ } else {
+ let log_item_result = db
+ .find_log_item(&backup_id, &log_id)
+ .await
+ .map_err(handle_db_error)?;
+ let mut log_item = log_item_result.ok_or_else(|| {
+ debug!("Log item not found");
+ Status::not_found("Log item not found")
+ })?;
+
+ add_new_attachments(&mut log_item.attachment_holders, &holders);
+
+ // log item too large for database, move it to blob-service stroage
+ if !log_item.persisted_in_blob
+ && log_item.total_size() > LOG_DATA_SIZE_DATABASE_LIMIT
+ {
+ debug!("Log item too large. Persisting in blob service...");
+ log_item = move_to_blob(log_item).await?;
+ }
+
+ db.put_log_item(log_item).await.map_err(handle_db_error)?;
+ }
+
+ Ok(())
+}
+
+async fn move_to_blob(log_item: LogItem) -> Result<LogItem, Status> {
+ todo!()
}
/// Modifies the [`current_holders_str`] by appending attachment holders

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