fix: Create mvbox on setting mvbox_move

src/config.rs

@@ -10,7 +10,7 @@ use strum::{EnumProperty, IntoEnumIterator};
 use strum_macros::{AsRefStr, Display, EnumIter, EnumProperty, EnumString};
 
 use crate::blob::BlobObject;
-use crate::constants::DC_VERSION_STR;
+use crate::constants::{self, DC_VERSION_STR};
 use crate::contact::addr_cmp;
 use crate::context::Context;
 use crate::events::EventType;
@@ -596,6 +596,12 @@ impl Context {
                     .set_raw_config(key.as_ref(), value.map(|s| s.to_lowercase()).as_deref())
                     .await?;
             }
+            Config::MvboxMove => {
+                self.sql.set_raw_config(key.as_ref(), value).await?;
+                self.sql
+                    .set_raw_config(constants::DC_FOLDERS_CONFIGURED_KEY, None)
+                    .await?;
+            }
             _ => {
                 self.sql.set_raw_config(key.as_ref(), value).await?;
             }

src/constants.rs

@@ -206,6 +206,8 @@ pub(crate) const WORSE_AVATAR_SIZE: u32 = 128;
 pub const BALANCED_IMAGE_SIZE: u32 = 1280;
 pub const WORSE_IMAGE_SIZE: u32 = 640;
 
+// Key for the folder configuration version (see below).
+pub(crate) const DC_FOLDERS_CONFIGURED_KEY: &str = "folders_configured";
 // this value can be increased if the folder configuration is changed and must be redone on next program start
 pub(crate) const DC_FOLDERS_CONFIGURED_VERSION: i32 = 4;
 

src/context.rs

@@ -18,7 +18,7 @@ use crate::aheader::EncryptPreference;
 use crate::chat::{get_chat_cnt, ChatId, ProtectionStatus};
 use crate::config::Config;
 use crate::constants::{
-    DC_BACKGROUND_FETCH_QUOTA_CHECK_RATELIMIT, DC_CHAT_ID_TRASH, DC_VERSION_STR,
+    self, DC_BACKGROUND_FETCH_QUOTA_CHECK_RATELIMIT, DC_CHAT_ID_TRASH, DC_VERSION_STR,
 };
 use crate::contact::Contact;
 use crate::debug_logging::DebugLogging;
@@ -672,7 +672,7 @@ impl Context {
         let only_fetch_mvbox = self.get_config_int(Config::OnlyFetchMvbox).await?;
         let folders_configured = self
             .sql
-            .get_raw_config_int("folders_configured")
+            .get_raw_config_int(constants::DC_FOLDERS_CONFIGURED_KEY)
             .await?
             .unwrap_or_default();
 
@@ -764,7 +764,10 @@ impl Context {
         res.insert("sentbox_watch", sentbox_watch.to_string());
         res.insert("mvbox_move", mvbox_move.to_string());
         res.insert("only_fetch_mvbox", only_fetch_mvbox.to_string());
-        res.insert("folders_configured", folders_configured.to_string());
+        res.insert(
+            constants::DC_FOLDERS_CONFIGURED_KEY,
+            folders_configured.to_string(),
+        );
         res.insert("configured_inbox_folder", configured_inbox_folder);
         res.insert("configured_sentbox_folder", configured_sentbox_folder);
         res.insert("configured_mvbox_folder", configured_mvbox_folder);

src/imap.rs

@@ -22,9 +22,7 @@ use tokio::sync::RwLock;
 
 use crate::chat::{self, ChatId, ChatIdBlocked};
 use crate::config::Config;
-use crate::constants::{
-    Blocked, Chattype, ShowEmails, DC_FETCH_EXISTING_MSGS_COUNT, DC_FOLDERS_CONFIGURED_VERSION,
-};
+use crate::constants::{self, Blocked, Chattype, ShowEmails, DC_FETCH_EXISTING_MSGS_COUNT};
 use crate::contact::{normalize_name, Contact, ContactAddress, ContactId, Modifier, Origin};
 use crate::context::Context;
 use crate::events::EventType;
@@ -1767,11 +1765,17 @@ impl Imap {
         context: &Context,
         create_mvbox: bool,
     ) -> Result<()> {
-        let folders_configured = context.sql.get_raw_config_int("folders_configured").await?;
-        if folders_configured.unwrap_or_default() >= DC_FOLDERS_CONFIGURED_VERSION {
+        let folders_configured = context
+            .sql
+            .get_raw_config_int(constants::DC_FOLDERS_CONFIGURED_KEY)
+            .await?;
+        if folders_configured.unwrap_or_default() >= constants::DC_FOLDERS_CONFIGURED_VERSION {
             return Ok(());
         }
-
+        if let Err(err) = self.connect(context).await {
+            self.connectivity.set_err(context, &err).await;
+            return Err(err);
+        }
         self.configure_folders(context, create_mvbox).await
     }
 
@@ -1893,7 +1897,10 @@ impl Imap {
         }
         context
             .sql
-            .set_raw_config_int("folders_configured", DC_FOLDERS_CONFIGURED_VERSION)
+            .set_raw_config_int(
+                constants::DC_FOLDERS_CONFIGURED_KEY,
+                constants::DC_FOLDERS_CONFIGURED_VERSION,
+            )
             .await?;
 
         info!(context, "FINISHED configuring IMAP-folders.");

src/scheduler.rs

@@ -521,6 +521,20 @@ pub async fn convert_folder_meaning(
 /// critical operation fails such as fetching new messages fails, connection is reset via
 /// `trigger_reconnect`, so a fresh one can be opened.
 async fn fetch_idle(ctx: &Context, connection: &mut Imap, folder_meaning: FolderMeaning) {
+    let create_mvbox = true;
+    if let Err(err) = connection
+        .ensure_configured_folders(ctx, create_mvbox)
+        .await
+    {
+        warn!(
+            ctx,
+            "Cannot watch {folder_meaning}, ensure_configured_folders() failed: {:#}", err,
+        );
+        connection
+            .fake_idle(ctx, None, FolderMeaning::Unknown)
+            .await;
+        return;
+    }
     let (folder_config, watch_folder) = match convert_folder_meaning(ctx, folder_meaning).await {
         Ok(meaning) => meaning,
         Err(error) => {