feat: split into actors

Cargo.toml

@@ -15,6 +15,7 @@ derive_more = { version = "1.0", features = [
     "from",
 ] }
 inquire = "0.7"
+kameo = "0.13"
 # kxio = {path = "../kxio/"}
 kxio = "4.0"
 reqwest = { version = "0.12" , features = ["multipart", "stream"]}

src/import/attachment.rs

@@ -1,56 +1,123 @@
 //
 use std::path::PathBuf;
 
+use kameo::{mailbox::unbounded::UnboundedMailbox, Actor};
+
 use crate::{
-    nextcloud::{
-        client::DeckClient,
-        model::{Card, NextcloudBoardId, NextcloudStackId},
-    },
-    p,
-    trello::{
-        client::TrelloClient,
-        model::{
+    nextcloud::model::{NextcloudBoardId, NextcloudCardId, NextcloudStackId},
+    on_actor_start, p,
+    trello::model::{
         attachment::{TrelloAttachment, TrelloAttachmentId},
-            card::TrelloShortCard,
-        },
+        card::TrelloCardId,
     },
     FullCtx,
 };
 
-pub(super) async fn import_attachment(
-    ctx: &FullCtx,
+// pub(super) async fn import_attachment(
+//     ctx: &FullCtx,
+//     nextcloud_board_id: NextcloudBoardId,
+//     nextcloud_stack_id: NextcloudStackId,
+//     trello_card: &TrelloShortCard,
+//     nextcloud_card: &Card,
+//     trello_attachment: &TrelloAttachment,
+// ) -> color_eyre::Result<()> {
+//     let trello_client: TrelloClient = ctx.trello_client();
+//
+//     let deck_client: DeckClient = ctx.deck_client();
+//
+//     p!(ctx.prt, ">> Adding attachment: {}", trello_attachment.name);
+//     // - - - download the attachment from trello
+//     let attachment_path = trello_client
+//         .save_attachment(
+//             &trello_card.id,
+//             &TrelloAttachmentId::new(&trello_attachment.id),
+//             Some(&PathBuf::from(&trello_attachment.id)),
+//         )
+//         .await?;
+//     let attachment_file = ctx.fs.file(&attachment_path);
+//     // - - - upload the attachment to nextcloud card
+//     let attachment = deck_client
+//         .add_attachment_to_card(
+//             nextcloud_board_id,
+//             nextcloud_stack_id,
+//             nextcloud_card.id,
+//             &attachment_file,
+//         )
+//         .await
+//         .result?;
+//     p!(
+//         ctx.prt,
+//         ">> Attachment added: {}:{}",
+//         attachment.id,
+//         attachment.attachment_type,
+//         // attachment.extended_data.mimetype
+//     );
+//     // delete local copy of attachment
+//     attachment_file.remove()?;
+//     Ok(())
+// }
+
+pub(crate) struct ImportAttachmentActor {
+    ctx: FullCtx,
     nextcloud_board_id: NextcloudBoardId,
     nextcloud_stack_id: NextcloudStackId,
-    trello_card: &TrelloShortCard,
-    nextcloud_card: &Card,
-    trello_attachment: &TrelloAttachment,
-) -> color_eyre::Result<()> {
-    let trello_client: TrelloClient = ctx.trello_client();
-
-    let deck_client: DeckClient = ctx.deck_client();
-
-    p!(ctx.prt, ">> Adding attachment: {}", trello_attachment.name);
-    // - - - download the attachment from trello
-    let attachment_path = trello_client
-        .save_attachment(
-            &trello_card.id,
-            &TrelloAttachmentId::new(&trello_attachment.id),
-            Some(&PathBuf::from(&trello_attachment.id)),
-        )
-        .await?;
-    let attachment_file = ctx.fs.file(&attachment_path);
-    // - - - upload the attachment to nextcloud card
-    let attachment = deck_client
-        .add_attachment_to_card(
+    nextcloud_card_id: NextcloudCardId,
+    trello_card_id: TrelloCardId,
+    trello_attachment: TrelloAttachment,
+}
+impl ImportAttachmentActor {
+    pub fn new(
+        ctx: FullCtx,
+        nextcloud_board_id: NextcloudBoardId,
+        nextcloud_stack_id: NextcloudStackId,
+        nextcloud_card_id: NextcloudCardId,
+        trello_card_id: TrelloCardId,
+        trello_attachment: TrelloAttachment,
+    ) -> Self {
+        Self {
+            ctx,
             nextcloud_board_id,
             nextcloud_stack_id,
-            nextcloud_card.id,
+            nextcloud_card_id,
+            trello_card_id,
+            trello_attachment,
+        }
+    }
+}
+impl Actor for ImportAttachmentActor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    on_actor_start!(this, actor_ref, {
+        p!(
+            this.ctx.prt,
+            ">> Adding attachment: {}",
+            this.trello_attachment.name
+        );
+        // - - - download the attachment from trello
+        let attachment_path = this
+            .ctx
+            .trello_client()
+            .save_attachment(
+                &this.trello_card_id,
+                &TrelloAttachmentId::new(&this.trello_attachment.id),
+                Some(&PathBuf::from(&this.trello_attachment.id)),
+            )
+            .await?;
+        let attachment_file = this.ctx.fs.file(&attachment_path);
+        // - - - upload the attachment to nextcloud card
+        let attachment = this
+            .ctx
+            .deck_client()
+            .add_attachment_to_card(
+                this.nextcloud_board_id,
+                this.nextcloud_stack_id,
+                this.nextcloud_card_id,
                 &attachment_file,
             )
             .await
             .result?;
         p!(
-        ctx.prt,
+            this.ctx.prt,
             ">> Attachment added: {}:{}",
             attachment.id,
             attachment.attachment_type,
@@ -58,5 +125,7 @@ pub(super) async fn import_attachment(
         );
         // delete local copy of attachment
         attachment_file.remove()?;
-    Ok(())
+
+        Ok(actor_ref.stop_gracefully().await?)
+    });
 }

src/import/card.rs

@@ -1,75 +1,194 @@
 //
 use std::collections::HashMap;
 
+use kameo::{
+    actor::{ActorID, ActorRef},
+    error::ActorStopReason,
+    mailbox::unbounded::UnboundedMailbox,
+    Actor,
+};
+
 use crate::{
-    import::{attachment, label},
+    import::{attachment::ImportAttachmentActor, label::ImportLabelActor, labels::LabelsActor},
     nextcloud::{
         client::DeckClient,
-        model::{
-            Label, NextcloudBoardId, NextcloudCardDescription, NextcloudCardTitle,
-            NextcloudLabelTitle, NextcloudStackId,
+        model::{NextcloudBoardId, NextcloudCardDescription, NextcloudCardTitle, NextcloudStackId},
     },
-    },
-    p,
+    on_actor_link_died, on_actor_start, p, spawn_in_thread,
     trello::{client::TrelloClient, model::card::TrelloShortCard},
     FullCtx,
 };
 
-pub(super) async fn import_card(
-    ctx: &FullCtx,
+// pub(super) async fn import_card(
+//     ctx: &FullCtx,
+//     nextcloud_board_id: NextcloudBoardId,
+//     nextcloud_labels: &mut HashMap<NextcloudLabelTitle, Label>,
+//     nextcloud_stack_id: NextcloudStackId,
+//     trello_card: &TrelloShortCard,
+// ) -> color_eyre::Result<()> {
+//     let trello_client: TrelloClient = ctx.trello_client();
+//
+//     let deck_client: DeckClient = ctx.deck_client();
+//
+//     p!(ctx.prt, "> Importing card: {}", trello_card.name);
+//     // - - create a nextcloud card
+//     let title = NextcloudCardTitle::from(&trello_card.name);
+//     let desc: Option<NextcloudCardDescription> = match trello_card.desc.len() {
+//         0 => None,
+//         _ => Some(NextcloudCardDescription::from(&trello_card.desc)),
+//     };
+//     let nextcloud_card = deck_client
+//         .create_card(
+//             nextcloud_board_id,
+//             nextcloud_stack_id,
+//             &title,
+//             desc.as_ref(),
+//         )
+//         .await
+//         .result?;
+//     // - - for each label on the trello card
+//     for trello_label in trello_card.labels.iter() {
+//         labels::import_label(
+//             ctx,
+//             nextcloud_board_id,
+//             nextcloud_labels,
+//             nextcloud_stack_id,
+//             &nextcloud_card,
+//             trello_label,
+//         )
+//         .await?;
+//     }
+//     // - - for each attachment on the trello card
+//     let attachments = trello_client
+//         .card(&trello_card.id)
+//         .await
+//         .result?
+//         .attachments;
+//     for trello_attachment in attachments.iter() {
+//         attachment::import_attachment(
+//             ctx,
+//             nextcloud_board_id,
+//             nextcloud_stack_id,
+//             trello_card,
+//             &nextcloud_card,
+//             trello_attachment,
+//         )
+//         .await?;
+//     }
+//     Ok(())
+// }
+
+pub(crate) struct ImportCardActor {
+    ctx: FullCtx,
+    trello_card: TrelloShortCard,
     nextcloud_board_id: NextcloudBoardId,
-    nextcloud_labels: &mut HashMap<NextcloudLabelTitle, Label>,
     nextcloud_stack_id: NextcloudStackId,
-    trello_card: &TrelloShortCard,
-) -> color_eyre::Result<()> {
-    let trello_client: TrelloClient = ctx.trello_client();
+    labels_actor_ref: ActorRef<LabelsActor>,
 
-    let deck_client: DeckClient = ctx.deck_client();
+    labels_children: HashMap<ActorID, ActorRef<ImportLabelActor>>,
+    attachments_children: HashMap<ActorID, ActorRef<ImportAttachmentActor>>,
+}
+impl ImportCardActor {
+    pub(crate) fn new(
+        ctx: FullCtx,
+        trello_card: TrelloShortCard,
+        nextcloud_board_id: NextcloudBoardId,
+        nextcloud_stack_id: NextcloudStackId,
+        labels_actor_ref: ActorRef<LabelsActor>,
+    ) -> Self {
+        Self {
+            ctx,
+            trello_card,
+            nextcloud_board_id,
+            nextcloud_stack_id,
+            labels_actor_ref,
 
-    p!(ctx.prt, "> Importing card: {}", trello_card.name);
+            labels_children: Default::default(),
+            attachments_children: Default::default(),
+        }
+    }
+}
+impl Actor for ImportCardActor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    on_actor_start!(this, actor_ref, {
+        let trello_client: TrelloClient = this.ctx.trello_client();
+
+        let deck_client: DeckClient = this.ctx.deck_client();
+
+        p!(this.ctx.prt, "> Importing card: {}", this.trello_card.name);
         // - - create a nextcloud card
-    let title = NextcloudCardTitle::from(&trello_card.name);
-    let desc: Option<NextcloudCardDescription> = match trello_card.desc.len() {
+        let title = NextcloudCardTitle::from(&this.trello_card.name);
+        let desc: Option<NextcloudCardDescription> = match this.trello_card.desc.len() {
             0 => None,
-        _ => Some(NextcloudCardDescription::from(&trello_card.desc)),
+            _ => Some(NextcloudCardDescription::from(&this.trello_card.desc)),
         };
         let nextcloud_card = deck_client
             .create_card(
-            nextcloud_board_id,
-            nextcloud_stack_id,
+                this.nextcloud_board_id,
+                this.nextcloud_stack_id,
                 &title,
                 desc.as_ref(),
             )
             .await
             .result?;
+
         // - - for each label on the trello card
-    for trello_label in trello_card.labels.iter() {
-        label::import_label(
-            ctx,
-            nextcloud_board_id,
-            nextcloud_labels,
-            nextcloud_stack_id,
-            &nextcloud_card,
+        let mut labels = vec![];
+        std::mem::swap(&mut this.trello_card.labels, &mut labels);
+        for trello_label in labels.into_iter() {
+            let child = spawn_in_thread!(
+                actor_ref,
+                ImportLabelActor::new(
+                    this.ctx.clone(),
+                    this.nextcloud_board_id,
+                    this.nextcloud_stack_id,
+                    nextcloud_card.id,
                     trello_label,
+                    this.labels_actor_ref.clone(),
                 )
-        .await?;
+            );
+            this.labels_children.insert(child.id(), child.clone());
         }
-    // - - for each attachment on the trello card
+
         let attachments = trello_client
-        .card(&trello_card.id)
+            .card(&this.trello_card.id)
             .await
             .result?
             .attachments;
-    for trello_attachment in attachments.iter() {
-        attachment::import_attachment(
-            ctx,
-            nextcloud_board_id,
-            nextcloud_stack_id,
-            trello_card,
-            &nextcloud_card,
+        for trello_attachment in attachments.into_iter() {
+            let child = spawn_in_thread!(
+                actor_ref,
+                ImportAttachmentActor::new(
+                    this.ctx.clone(),
+                    this.nextcloud_board_id,
+                    this.nextcloud_stack_id,
+                    nextcloud_card.id,
+                    this.trello_card.id.clone(),
                     trello_attachment,
                 )
-        .await?;
+            );
+            this.attachments_children.insert(child.id(), child.clone());
         }
+
         Ok(())
+    });
+
+    on_actor_link_died!(this, actor_ref, id, reason, {
+        match reason {
+            ActorStopReason::Normal => {
+                this.labels_children.remove(&id);
+                this.attachments_children.remove(&id);
+            }
+            _ => {
+                return Ok(Some(reason));
+            }
+        }
+
+        if this.labels_children.is_empty() && this.attachments_children.is_empty() {
+            return Ok(Some(ActorStopReason::Normal));
+        }
+
+        Ok(None)
+    });
 }

src/import/label.rs

@@ -1,67 +1,65 @@
 //
-use std::collections::HashMap;
-
-use all_colors::get_color_hex;
+use kameo::{actor::ActorRef, mailbox::unbounded::UnboundedMailbox, Actor};
 
 use crate::{
-    nextcloud::{
-        client::DeckClient,
-        model::{
-            Card, Label, NextcloudBoardId, NextcloudLabelColour, NextcloudLabelTitle,
-            NextcloudStackId,
-        },
-    },
-    p,
+    ask,
+    import::{labels, labels::LabelsActor},
+    nextcloud::model::{NextcloudBoardId, NextcloudCardId, NextcloudStackId},
+    on_actor_start,
     trello::model::label::TrelloLabel,
     FullCtx,
 };
 
-pub(super) async fn import_label(
-    ctx: &FullCtx,
+pub(crate) struct ImportLabelActor {
+    ctx: FullCtx,
     nextcloud_board_id: NextcloudBoardId,
-    nextcloud_labels: &mut HashMap<NextcloudLabelTitle, Label>,
     nextcloud_stack_id: NextcloudStackId,
-    nextcloud_card: &Card,
-    trello_label: &TrelloLabel,
-) -> color_eyre::Result<()> {
-    let deck_client: DeckClient = ctx.deck_client();
-
-    p!(
-        ctx.prt,
-        ">> Adding label: {} ({})",
-        trello_label.name,
-        trello_label.color
-    );
-    // - - - find the equivalent label in nextcloud
-    let nextcloud_label: &Label =
-        match nextcloud_labels.get(&NextcloudLabelTitle::new(trello_label.name.as_ref())) {
-            Some(label) => label,
-            None => {
-                p!(ctx.prt, ">> Label not found in nextcloud board, creating");
-
-                let label = deck_client
-                    .create_label(
-                        nextcloud_board_id,
-                        &NextcloudLabelTitle::new(trello_label.name.as_ref()),
-                        &NextcloudLabelColour::new(get_color_hex(trello_label.color.as_ref())),
-                    )
-                    .await
-                    .result?;
-                nextcloud_labels.insert(label.title.clone(), label);
-                nextcloud_labels
-                    .get(&NextcloudLabelTitle::new(trello_label.name.as_ref()))
-                    .expect("label was just inserted")
-            }
-        };
-    // - - - add the label to the nextcloud card
-    deck_client
-        .add_label_to_card(
+    nextcloud_card_id: NextcloudCardId,
+    trello_label: TrelloLabel,
+    labels_actor_ref: ActorRef<LabelsActor>,
+}
+impl ImportLabelActor {
+    pub(crate) fn new(
+        ctx: FullCtx,
+        nextcloud_board_id: NextcloudBoardId,
+        nextcloud_stack_id: NextcloudStackId,
+        nextcloud_card_id: NextcloudCardId,
+        trello_label: TrelloLabel,
+        labels_actor_ref: ActorRef<LabelsActor>,
+    ) -> Self {
+        Self {
+            ctx,
             nextcloud_board_id,
             nextcloud_stack_id,
-            nextcloud_card.id,
-            nextcloud_label.id,
+            nextcloud_card_id,
+            trello_label,
+            labels_actor_ref,
+        }
+    }
+}
+impl Actor for ImportLabelActor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    on_actor_start!(this, actor_ref, {
+        let label_id = ask!(
+            this.labels_actor_ref,
+            labels::LookupNextcloudLabelId {
+                trello_name: this.trello_label.name.clone(),
+                trello_color: this.trello_label.color.clone()
+            }
+        )?;
+        // - - - add the label to the nextcloud card
+        this.ctx
+            .deck_client()
+            .add_label_to_card(
+                this.nextcloud_board_id,
+                this.nextcloud_stack_id,
+                this.nextcloud_card_id,
+                label_id,
             )
             .await
             .result?;
-    Ok(())
+
+        Ok(actor_ref.stop_gracefully().await?)
+    });
 }

src/import/labels.rs

@@ -0,0 +1,142 @@
+//
+use std::collections::HashMap;
+
+use all_colors::get_color_hex;
+use kameo::{
+    mailbox::unbounded::UnboundedMailbox,
+    message::{Context, Message},
+    Actor,
+};
+
+use crate::{
+    nextcloud::model::{
+        NextcloudBoardId, NextcloudLabelColour, NextcloudLabelId, NextcloudLabelTitle,
+    },
+    on_actor_start, p,
+    trello::model::label::{TrelloLabelColor, TrelloLabelName},
+    FullCtx,
+};
+
+// pub(super) async fn import_label(
+//     ctx: &FullCtx,
+//     nextcloud_board_id: NextcloudBoardId,
+//     nextcloud_labels: &mut HashMap<NextcloudLabelTitle, Label>,
+//     nextcloud_stack_id: NextcloudStackId,
+//     nextcloud_card: &Card,
+//     trello_label: &TrelloLabel,
+// ) -> color_eyre::Result<()> {
+//     let deck_client: DeckClient = ctx.deck_client();
+//
+//     p!(
+//         ctx.prt,
+//         ">> Adding label: {} ({})",
+//         trello_label.name,
+//         trello_label.color
+//     );
+//     // - - - find the equivalent label in nextcloud
+//     let nextcloud_label: &Label =
+//         match nextcloud_labels.get(&NextcloudLabelTitle::new(trello_label.name.as_ref())) {
+//             Some(label) => label,
+//             None => {
+//                 p!(ctx.prt, ">> Label not found in nextcloud board, creating");
+//
+//                 let label = deck_client
+//                     .create_label(
+//                         nextcloud_board_id,
+//                         &NextcloudLabelTitle::new(trello_label.name.as_ref()),
+//                         &NextcloudLabelColour::new(get_color_hex(trello_label.color.as_ref())),
+//                     )
+//                     .await
+//                     .result?;
+//                 nextcloud_labels.insert(label.title.clone(), label);
+//                 nextcloud_labels
+//                     .get(&NextcloudLabelTitle::new(trello_label.name.as_ref()))
+//                     .expect("label was just inserted")
+//             }
+//         };
+//     // - - - add the label to the nextcloud card
+//     deck_client
+//         .add_label_to_card(
+//             nextcloud_board_id,
+//             nextcloud_stack_id,
+//             nextcloud_card.id,
+//             nextcloud_label.id,
+//         )
+//         .await
+//         .result?;
+//     Ok(())
+// }
+
+pub(super) struct LabelsActor {
+    ctx: FullCtx,
+    nextcloud_board_id: NextcloudBoardId,
+    lookup: HashMap<NextcloudLabelTitle, NextcloudLabelId>,
+}
+impl LabelsActor {
+    pub(super) fn new(ctx: FullCtx, nextcloud_board_id: NextcloudBoardId) -> Self {
+        Self {
+            ctx,
+            nextcloud_board_id,
+            lookup: Default::default(),
+        }
+    }
+}
+impl Actor for LabelsActor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    on_actor_start!(this, actor_ref, {
+        this.ctx
+            .deck_client()
+            .get_board(this.nextcloud_board_id)
+            .await
+            .result?
+            .labels
+            .iter()
+            .for_each(|l| {
+                this.lookup.insert(l.title.clone(), l.id);
+            });
+        Ok(())
+    });
+}
+
+pub(crate) struct LookupNextcloudLabelId {
+    pub(crate) trello_name: TrelloLabelName,
+    pub(crate) trello_color: TrelloLabelColor,
+}
+impl Message<LookupNextcloudLabelId> for LabelsActor {
+    type Reply = Result<NextcloudLabelId, kxio::Error>;
+    async fn handle(
+        &mut self,
+        msg: LookupNextcloudLabelId,
+        _ctx: Context<'_, Self, Self::Reply>,
+    ) -> Result<NextcloudLabelId, kxio::Error> {
+        let nextcloud_label_id = match self
+            .lookup
+            .get(&NextcloudLabelTitle::new(msg.trello_name.as_ref()))
+        {
+            Some(nextcloud_label_id) => nextcloud_label_id,
+            None => {
+                p!(
+                    self.ctx.prt,
+                    ">> Label not found in nextcloud board, creating"
+                );
+
+                let label = self
+                    .ctx
+                    .deck_client()
+                    .create_label(
+                        self.nextcloud_board_id,
+                        &NextcloudLabelTitle::new(msg.trello_name.as_ref()),
+                        &NextcloudLabelColour::new(get_color_hex(msg.trello_color.as_ref())),
+                    )
+                    .await
+                    .result?;
+                self.lookup.insert(label.title.clone(), label.id);
+                self.lookup
+                    .get(&NextcloudLabelTitle::new(msg.trello_name.as_ref()))
+                    .expect("label was just inserted")
+            }
+        };
+        Ok(*nextcloud_label_id)
+    }
+}

src/import/mod.rs

@@ -1,11 +1,12 @@
 //
-use std::collections::HashMap;
-
 use color_eyre::eyre::eyre;
+use kameo::actor::spawn_in_thread;
 
 use crate::{
     f,
-    nextcloud::model::{Label, NextcloudBoardTitle, NextcloudLabelTitle},
+    import::{labels::LabelsActor, stacks::ImportStacksActor, supervisor::Supervisor},
+    nextcloud::model::NextcloudBoardTitle,
+    spawn_in_thread,
     trello::model::board::{TrelloBoardId, TrelloBoardName, TrelloBoards},
     FullCtx,
 };
@@ -13,7 +14,11 @@ use crate::{
 mod attachment;
 mod card;
 mod label;
+mod labels;
+mod spawn;
 mod stack;
+mod stacks;
+mod supervisor;
 
 pub(crate) async fn run(ctx: &FullCtx) -> color_eyre::Result<()> {
     // get list of trello boards
@@ -72,45 +77,26 @@ pub(crate) async fn run(ctx: &FullCtx) -> color_eyre::Result<()> {
         .find(|b| b.title == nextcloud_board_name)
         .map(|b| b.id)
         .expect("find selected board");
-    // get list of nextcloud stacks in the selected board
-    let nextcloud_stacks = deck_client.get_stacks(nextcloud_board_id).await.result?;
 
-    stack::create_any_missing_stacks(
-        ctx,
-        &selected_trello_stack_names,
+    let supervisor = spawn_in_thread(Supervisor);
+
+    let labels_actor_ref = spawn_in_thread!(
+        supervisor,
+        LabelsActor::new(ctx.clone(), nextcloud_board_id)
+    );
+
+    let _main = spawn_in_thread!(
+        supervisor,
+        ImportStacksActor::new(
+            ctx.clone(),
+            trello_stacks.clone(),
+            selected_trello_stack_names.into_iter().cloned().collect(),
             nextcloud_board_id,
-        nextcloud_stacks,
+            labels_actor_ref.clone(),
         )
-    .await?;
+    );
 
-    // - get the list of nextcloud stacks again (with new stack ids)
-    let nextcloud_stacks = deck_client.get_stacks(nextcloud_board_id).await.result?;
-
-    let mut nextcloud_labels: HashMap<NextcloudLabelTitle, Label> = deck_client
-        .get_board(nextcloud_board_id)
-        .await
-        .result?
-        .labels
-        .iter()
-        .map(|l| (l.title.clone(), l.clone()))
-        .collect();
-
-    // for each selected trello stack
-    for selected_trello_stack in trello_stacks
-        .iter()
-        .filter(|s| selected_trello_stack_names.contains(&s.name.as_ref()))
-        .collect::<Vec<_>>()
-        .into_iter()
-    {
-        stack::import_stack(
-            ctx,
-            nextcloud_board_id,
-            &nextcloud_stacks,
-            &mut nextcloud_labels,
-            selected_trello_stack,
-        )
-        .await?;
-    }
+    supervisor.wait_for_stop().await;
 
     Ok(())
 }

src/import/spawn.rs

@@ -0,0 +1,25 @@
+//
+/// spawns a new actor and sets up bi-directional links
+#[macro_export]
+macro_rules! spawn {
+    ($parent:expr, $actor:expr) => {{
+        tracing::debug!("spawning : {}", stringify!($actor));
+        let new_actor_ref = kameo::spawn($actor);
+        new_actor_ref.link(&$parent).await;
+        $parent.link(&new_actor_ref).await;
+        tracing::debug!("spawned  : {}", stringify!($actor));
+        new_actor_ref
+    }};
+}
+
+#[macro_export]
+macro_rules! spawn_in_thread {
+    ($parent:expr, $actor:expr) => {{
+        tracing::debug!("spawning in thread : {}", stringify!($actor));
+        let new_actor_ref = kameo::actor::spawn_in_thread($actor);
+        new_actor_ref.link(&$parent).await;
+        $parent.link(&new_actor_ref).await;
+        tracing::debug!("spawned  in thread : {}", stringify!($actor));
+        new_actor_ref
+    }};
+}

src/import/stack.rs

@@ -1,13 +1,17 @@
 //
-use std::{collections::HashMap, ops::Deref};
+use std::collections::HashMap;
+
+use kameo::{
+    actor::{ActorID, ActorRef},
+    error::ActorStopReason,
+    mailbox::unbounded::UnboundedMailbox,
+    Actor,
+};
 
 use crate::{
-    import::card,
-    nextcloud::{
-        client::DeckClient,
-        model::{Label, NextcloudBoardId, NextcloudLabelTitle, Stack},
-    },
-    p,
+    import::{card::ImportCardActor, labels::LabelsActor},
+    nextcloud::model::{NextcloudBoardId, NextcloudStackId},
+    on_actor_link_died, on_actor_start, spawn_in_thread,
     trello::{
         client::TrelloClient,
         model::list::{TrelloList, TrelloListId},
@@ -15,68 +19,74 @@ use crate::{
     FullCtx,
 };
 
-pub(super) async fn create_any_missing_stacks(
-    ctx: &FullCtx,
-    selected_trello_stack_names: &Vec<&String>,
+pub(super) struct ImportStackActor {
+    ctx: FullCtx,
+    trello_stack: TrelloList,
     nextcloud_board_id: NextcloudBoardId,
-    nextcloud_stacks: Vec<Stack>,
-) -> color_eyre::Result<()> {
-    let deck_client: DeckClient = ctx.deck_client();
-
-    // identify any stacks by name from those selected in trello that are missing in nextcloud
-    let missing_stack_names = selected_trello_stack_names
-        .iter()
-        .filter(|s| !nextcloud_stacks.iter().any(|ns| ns.title.deref() == **s))
-        .cloned()
-        .collect::<Vec<_>>();
-    if !missing_stack_names.is_empty() {
-        crate::p!(ctx.prt, "Missing stacks: {:?}", missing_stack_names);
-        // create any missing stacks in nextcloud
-        // for each missing stack
-        for missing_stack_name in missing_stack_names.into_iter() {
-            // - create the stack
-            let stack = deck_client
-                .create_stack(nextcloud_board_id, &missing_stack_name.clone().into())
-                .await
-                .result?;
-            p!(ctx.prt, "Created stack: {}", stack.title);
-        }
-        p!(ctx.prt, "Stacks created");
-    }
-    Ok(())
+    nextcloud_stack_id: NextcloudStackId,
+    labels_actor_ref: ActorRef<LabelsActor>,
+    children: HashMap<ActorID, ActorRef<ImportCardActor>>,
 }
-
-pub(super) async fn import_stack(
-    ctx: &FullCtx,
+impl ImportStackActor {
+    pub(crate) fn new(
+        ctx: FullCtx,
+        trello_stack: TrelloList,
         nextcloud_board_id: NextcloudBoardId,
-    nextcloud_stacks: &Vec<Stack>,
-    nextcloud_labels: &mut HashMap<NextcloudLabelTitle, Label>,
-    selected_trello_stack: &TrelloList,
-) -> color_eyre::Result<()> {
-    let trello_client: TrelloClient = ctx.trello_client();
+        nextcloud_stack_id: NextcloudStackId,
+        labels_actor_ref: ActorRef<LabelsActor>,
+    ) -> Self {
+        Self {
+            ctx,
+            trello_stack,
+            nextcloud_board_id,
+            nextcloud_stack_id,
+            labels_actor_ref,
+            children: Default::default(),
+        }
+    }
+}
+impl Actor for ImportStackActor {
+    type Mailbox = UnboundedMailbox<Self>;
 
-    p!(ctx.prt, "Importing stack: {}", selected_trello_stack.name);
-    let nextcloud_stack_id = nextcloud_stacks
-        .iter()
-        .find(|ns| ns.title.deref() == selected_trello_stack.name.as_ref())
-        .map(|ns| ns.id)
-        .expect("find nextcloud stack");
+    on_actor_start!(this, actor_ref, {
+        let trello_client: TrelloClient = this.ctx.trello_client();
+
+        crate::p!(this.ctx.prt, "Importing stack: {}", this.trello_stack.name);
         // - get the list of trello cards in the stack
         let trello_cards = trello_client
-        .list_cards(&TrelloListId::new(selected_trello_stack.id.as_ref()))
+            .list_cards(&TrelloListId::new(this.trello_stack.id.as_ref()))
             .await
             .result?;
 
         // - for each card in the trello stack
         for trello_card in trello_cards.into_iter() {
-        card::import_card(
-            ctx,
-            nextcloud_board_id,
-            nextcloud_labels,
-            nextcloud_stack_id,
-            &trello_card,
+            let child: ActorRef<ImportCardActor> = spawn_in_thread!(
+                actor_ref.clone(),
+                ImportCardActor::new(
+                    this.ctx.clone(),
+                    trello_card,
+                    this.nextcloud_board_id,
+                    this.nextcloud_stack_id,
+                    this.labels_actor_ref.clone(),
                 )
-        .await?;
+            );
+            this.children.insert(child.id(), child.clone());
         }
         Ok(())
+    });
+
+    on_actor_link_died!(this, actor_ref, id, reason, {
+        match reason {
+            ActorStopReason::Normal => {
+                this.children.remove(&id);
+            }
+            _ => {
+                return Ok(Some(reason));
+            }
+        }
+        if this.children.is_empty() {
+            return Ok(Some(ActorStopReason::Normal));
+        }
+        Ok(None)
+    });
 }

src/import/stacks.rs

@@ -0,0 +1,150 @@
+//
+use std::{collections::HashMap, ops::Deref};
+
+use kameo::{
+    actor::{ActorID, ActorRef},
+    error::ActorStopReason,
+    mailbox::unbounded::UnboundedMailbox,
+    Actor,
+};
+
+use crate::{
+    import::{labels::LabelsActor, stack::ImportStackActor},
+    nextcloud::{
+        client::DeckClient,
+        model::{NextcloudBoardId, Stack},
+    },
+    on_actor_link_died, on_actor_start, p, spawn_in_thread,
+    trello::model::list::TrelloList,
+    FullCtx,
+};
+
+async fn create_any_missing_stacks(
+    ctx: &FullCtx,
+    selected_trello_stack_names: &[String],
+    nextcloud_board_id: NextcloudBoardId,
+    nextcloud_stacks: Vec<Stack>,
+) -> color_eyre::Result<()> {
+    let deck_client: DeckClient = ctx.deck_client();
+
+    // identify any stacks by name from those selected in trello that are missing in nextcloud
+    let missing_stack_names = selected_trello_stack_names
+        .iter()
+        .filter(|s| !nextcloud_stacks.iter().any(|ns| ns.title.deref() == *s))
+        .cloned()
+        .collect::<Vec<_>>();
+    if !missing_stack_names.is_empty() {
+        crate::p!(ctx.prt, "Missing stacks: {:?}", missing_stack_names);
+        // create any missing stacks in nextcloud
+        // for each missing stack
+        for missing_stack_name in missing_stack_names.into_iter() {
+            // - create the stack
+            let stack = deck_client
+                .create_stack(nextcloud_board_id, &missing_stack_name.clone().into())
+                .await
+                .result?;
+            p!(ctx.prt, "Created stack: {}", stack.title);
+        }
+        p!(ctx.prt, "Stacks created");
+    }
+    Ok(())
+}
+
+//
+pub(super) struct ImportStacksActor {
+    ctx: FullCtx,
+    trello_stacks: Vec<TrelloList>,
+    selected_trello_stack_names: Vec<String>,
+    nextcloud_board_id: NextcloudBoardId,
+    labels_actor_ref: ActorRef<LabelsActor>,
+
+    children: HashMap<ActorID, ActorRef<ImportStackActor>>,
+}
+impl ImportStacksActor {
+    pub(super) fn new(
+        ctx: FullCtx,
+        trello_stacks: Vec<TrelloList>,
+        selected_trello_stack_names: Vec<String>,
+        nextcloud_board_id: NextcloudBoardId,
+        labels_actor_ref: ActorRef<LabelsActor>,
+    ) -> Self {
+        Self {
+            ctx,
+            trello_stacks,
+            selected_trello_stack_names,
+            nextcloud_board_id,
+            labels_actor_ref,
+            children: Default::default(),
+        }
+    }
+}
+impl Actor for ImportStacksActor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    on_actor_start!(this, actor_ref, {
+        // spawn a new ImportStack actor for each trello_stack named in selected_trello_stack_names
+
+        // get list of nextcloud stacks in the selected board
+        let nextcloud_stacks = this
+            .ctx
+            .deck_client()
+            .get_stacks(this.nextcloud_board_id)
+            .await
+            .result?;
+        create_any_missing_stacks(
+            &this.ctx,
+            &this.selected_trello_stack_names,
+            this.nextcloud_board_id,
+            nextcloud_stacks,
+        )
+        .await?;
+        // - get the list of nextcloud stacks again (with new stack ids)
+        let nextcloud_stacks = this
+            .ctx
+            .deck_client()
+            .get_stacks(this.nextcloud_board_id)
+            .await
+            .result?;
+
+        // for each selected trello stack
+        for selected_trello_stack in this
+            .trello_stacks
+            .iter()
+            .filter(|s| this.selected_trello_stack_names.contains(s.name.as_ref()))
+        {
+            let nextcloud_stack_id = //this.
+                nextcloud_stacks
+                .iter()
+                .find(|ns| ns.title.deref() == selected_trello_stack.name.as_ref())
+                .map(|ns| ns.id)
+                .expect("find nextcloud stack");
+            let child: ActorRef<ImportStackActor> = spawn_in_thread!(
+                actor_ref,
+                ImportStackActor::new(
+                    this.ctx.clone(),
+                    selected_trello_stack.clone(),
+                    this.nextcloud_board_id,
+                    nextcloud_stack_id,
+                    this.labels_actor_ref.clone(),
+                )
+            );
+            this.children.insert(child.id(), child);
+        }
+        Ok(())
+    });
+
+    on_actor_link_died!(this, actor_ref, id, reason, {
+        match reason {
+            ActorStopReason::Normal => {
+                this.children.remove(&id);
+            }
+            _ => {
+                return Ok(Some(reason));
+            }
+        }
+        if this.children.is_empty() {
+            return Ok(Some(ActorStopReason::Normal));
+        }
+        Ok(None)
+    });
+}

src/import/supervisor.rs

@@ -0,0 +1,22 @@
+//
+use kameo::{
+    actor::{ActorID, WeakActorRef},
+    error::{ActorStopReason, BoxError},
+    mailbox::unbounded::UnboundedMailbox,
+    Actor,
+};
+
+pub(super) struct Supervisor;
+impl Actor for Supervisor {
+    type Mailbox = UnboundedMailbox<Self>;
+
+    async fn on_link_died(
+        &mut self,
+        _actor_ref: WeakActorRef<Self>,
+        _id: ActorID,
+        reason: ActorStopReason,
+    ) -> Result<Option<ActorStopReason>, BoxError> {
+        // normally when ImportStacksActor stops it would not cause the supervisor to stop, but we want it to stop.
+        Ok(Some(reason))
+    }
+}

src/lib.rs

@@ -4,7 +4,11 @@ use std::path::PathBuf;
 use clap::Parser;
 use color_eyre::eyre::eyre;
 use config::AppConfig;
-use kxio::{fs::FileSystem, net::Net, print::Printer};
+use kxio::{fs::FileSystem, kxeprintln as e, kxprintln as p, net::Net, print::Printer};
+
+use crate::{nextcloud::client::DeckClient, trello::client::TrelloClient};
+
+use execute::Execute;
 
 mod api_result;
 mod check;
@@ -13,7 +17,7 @@ mod conversion;
 mod execute;
 mod import;
 mod init;
-mod macros;
+pub mod macros;
 mod nextcloud;
 mod template;
 mod trello;
@@ -23,13 +27,6 @@ mod tests;
 
 const NAME: &str = "trello-to-deck";
 
-use crate::nextcloud::client::DeckClient;
-use crate::trello::client::TrelloClient;
-use execute::Execute;
-
-use kxio::kxeprintln as e;
-use kxio::kxprintln as p;
-
 #[derive(Parser, Debug)]
 #[clap(version = clap::crate_version!(), author = clap::crate_authors!(), about = clap::crate_description!())]
 pub struct Commands {

src/macros/actor.rs

@@ -0,0 +1,209 @@
+//
+
+/// Called when the actor starts, before it processes any messages.
+///
+/// Messages sent internally by the actor during `on_start` are prioritized and processed
+/// before any externally sent messages, even if external messages are received first.
+///
+/// This ensures that the actor can properly initialize before handling external messages.
+///
+/// # Example
+///
+/// ```rust
+/// use trello_to_deck::on_actor_start;
+/// struct ServerActor;
+/// impl kameo::Actor for ServerActor {
+///     type Mailbox = kameo::mailbox::unbounded::UnboundedMailbox<Self>;
+///
+///     on_actor_start!(this, actor_ref, {
+///         // handle start here
+///         Ok(())
+///     });
+/// }
+/// ```
+#[macro_export]
+macro_rules! on_actor_start {
+    ($this:ident, $actor_ref:ident, $body:expr) => {
+        #[allow(unused_variables)]
+        #[tracing::instrument(skip_all)]
+        async fn on_start(
+            &mut self,
+            actor_ref: kameo::actor::ActorRef<Self>,
+        ) -> std::result::Result<(), kameo::error::BoxError> {
+            tracing::debug!(?actor_ref, "{}", <Self as kameo::Actor>::name());
+            let $this = self;
+            let $actor_ref = actor_ref;
+            $body
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! default_on_actor_start {
+    ($this:ident, $actor_ref:ident) => {
+        $crate::on_actor_start!($this, $actor_ref, { Ok(()) });
+    };
+}
+
+/// Called swhen the actor encounters a panic or an error during "tell" message handling.
+///
+/// This method gives the actor an opportunity to clean up or reset its state and determine
+/// whether it should be stopped or continue processing messages.
+///
+/// # Parameters
+/// - `err`: The panic or error that occurred.
+///
+/// # Returns
+/// - `Some(ActorStopReason)`: Stops the actor.
+/// - `None`: Allows the actor to continue processing messages.
+///
+/// # Example
+///
+/// ```rust
+/// use trello_to_deck::on_actor_panic;
+/// struct ServerActor;
+/// impl kameo::Actor for ServerActor {
+///     type Mailbox = kameo::mailbox::unbounded::UnboundedMailbox<Self>;
+///
+///     on_actor_panic!(this, actor_ref, err, {
+///         // handle panic here
+///         Ok(None)
+///     });
+/// }
+/// ```
+#[macro_export]
+macro_rules! on_actor_panic {
+    ($this:ident, $actor_ref:ident, $err:ident, $body:expr) => {
+        #[allow(unused_variables)]
+        #[tracing::instrument(skip_all)]
+        async fn on_panic(
+            &mut self,
+            actor_ref: kameo::actor::WeakActorRef<Self>,
+            err: kameo::error::PanicError,
+        ) -> std::result::Result<Option<kameo::error::ActorStopReason>, kameo::error::BoxError> {
+            tracing::debug!(?actor_ref, %err, "{}", <Self as kameo::Actor>::name());
+            let $this = self;
+            let $actor_ref = actor_ref;
+            let $err = err;
+            $body
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! default_on_actor_panic {
+    ($this:ident, $actor_ref:ident, $err:ident) => {
+        $crate::on_actor_panic!($this, $actor_ref, $err, {
+            Ok(Some(kameo::error::ActorStopReason::Panicked($err)))
+        });
+    };
+}
+
+/// Called when a linked actor dies.
+///
+/// By default, the actor will stop if the reason for the linked actor's death is anything other
+/// than `Normal`. You can customize this behavior in the implementation.
+///
+/// # Returns
+/// Whether the actor should stop or continue processing messages.
+///
+/// # Example
+///
+/// ```rust
+/// use trello_to_deck::on_actor_link_died;
+/// struct ServerActor;
+/// impl kameo::Actor for ServerActor {
+///     type Mailbox = kameo::mailbox::unbounded::UnboundedMailbox<Self>;
+///
+///     on_actor_link_died!(this, actor_ref, id, reason, {
+///         // handle link death here
+///         Ok(None)
+///     });
+/// }
+/// ```
+#[macro_export]
+macro_rules! on_actor_link_died {
+    ($this:ident, $actor_ref:ident, $id:ident, $reason:ident, $body:expr) => {
+        #[allow(unused_variables)]
+        #[tracing::instrument(skip_all)]
+        async fn on_link_died(
+            &mut self,
+            actor_ref: kameo::actor::WeakActorRef<Self>,
+            id: kameo::actor::ActorID,
+            reason: kameo::error::ActorStopReason,
+        ) -> std::result::Result<Option<kameo::error::ActorStopReason>, kameo::error::BoxError> {
+            tracing::debug!(?actor_ref, %id, %reason, "{}", <Self as kameo::Actor>::name());
+            let $this = self;
+            let $actor_ref = actor_ref;
+            let $id = id;
+            let $reason = reason;
+            $body
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! default_on_actor_link_died {
+    ($this:ident, $actor_ref:ident, $id:ident, $reason:ident) => {
+        $crate::on_actor_link_died!($this, $actor_ref, $id, $reason, {
+            match &$reason {
+                kameo::error::ActorStopReason::Normal => Ok(None),
+                kameo::error::ActorStopReason::Killed
+                | kameo::error::ActorStopReason::Panicked(_)
+                | kameo::error::ActorStopReason::LinkDied { .. } => {
+                    Ok(Some(kameo::error::ActorStopReason::LinkDied {
+                        id: $id,
+                        reason: Box::new($reason),
+                    }))
+                }
+            }
+        });
+    };
+}
+
+/// Called before the actor stops.
+///
+/// This allows the actor to perform any necessary cleanup or release resources before being fully stopped.
+///
+/// # Parameters
+/// - `reason`: The reason why the actor is being stopped.
+///
+/// # Example
+///
+/// ```rust
+/// use trello_to_deck::on_actor_stop;
+/// struct ServerActor;
+/// impl kameo::Actor for ServerActor {
+///     type Mailbox = kameo::mailbox::unbounded::UnboundedMailbox<Self>;
+///
+///     on_actor_stop!(this, actor_ref, reason, {
+///         // handle stop here
+///         Ok(())
+///     });
+/// }
+/// ```
+#[macro_export]
+macro_rules! on_actor_stop {
+    ($this:ident, $actor_ref:ident, $reason:ident, $body:expr) => {
+        #[allow(unused_variables)]
+        #[tracing::instrument(skip_all)]
+        async fn on_stop(
+            &mut self,
+            actor_ref: kameo::actor::WeakActorRef<Self>,
+            reason: kameo::error::ActorStopReason,
+        ) -> std::result::Result<(), kameo::error::BoxError> {
+            tracing::debug!(?actor_ref, %reason, "{}", <Self as kameo::Actor>::name());
+            let $this = self;
+            let $actor_ref = actor_ref;
+            let $reason = reason;
+            $body
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! default_on_actor_stop {
+    ($this:ident, $actor_ref:ident, $reason:ident) => {
+        $crate::on_actor_stop!($this, $actor_ref, $reason, { Ok(()) });
+    };
+}

src/macros/mod.rs

@@ -1,4 +1,6 @@
 //
+mod actor;
 mod newtype;
 mod print;
+mod send;
 mod to_string;

src/macros/send.rs

@@ -0,0 +1,64 @@
+//
+#[macro_export]
+macro_rules! tell {
+    ($actor_ref:expr, $message:expr) => {
+        tell!(stringify!($actor_ref), $actor_ref, $message)
+    };
+    ($actor_name:expr, $actor_ref:expr, $message:expr) => {{
+        tracing::debug!(actor = $actor_name, msg = stringify!($message), "send");
+        $actor_ref.tell($message).await
+    }};
+}
+
+#[macro_export]
+macro_rules! ask {
+    ($actor_ref:expr, $message:expr) => {
+        ask!(stringify!($actor_ref), $actor_ref, $message)
+    };
+    ($actor_name:expr, $actor_ref:expr, $message:expr) => {{
+        tracing::debug!(actor = $actor_name, msg = stringify!($message), "send");
+        $actor_ref.ask($message).await
+    }};
+}
+
+#[macro_export]
+macro_rules! subscribe {
+    ($message_bus:expr, $actor_ref:expr) => {
+        subscribe!(
+            stringify!($message_bus),
+            $message_bus,
+            stringify!($actor_ref),
+            $actor_ref
+        )
+    };
+    ($message_bus:expr, $actor_name:expr, $actor_ref:expr) => {
+        subscribe!(
+            stringify!($message_bus),
+            $message_bus,
+            $actor_name,
+            $actor_ref
+        )
+    };
+    ($bus_name:expr, $message_bus:expr, $actor_ref:expr) => {
+        subscribe!($bus_name, $message_bus, stringify!($actor_ref), $actor_ref)
+    };
+    ($bus_name:expr, $message_bus:expr, $actor_name:expr, $actor_ref:expr) => {{
+        tracing::debug!(msg_bus = $bus_name, actor = $actor_name, "subscribe");
+        $message_bus
+            .tell(kameo::actor::pubsub::Subscribe($actor_ref))
+            .await
+    }};
+}
+
+#[macro_export]
+macro_rules! publish {
+    ($message_bus:expr, $message:expr) => {
+        publish!(stringify!($message_bus), $message_bus, $message)
+    };
+    ($bus_name:expr, $message_bus:expr, $message:expr) => {{
+        tracing::debug!(bus = $bus_name, msg = stringify!($message), "publish");
+        $message_bus
+            .tell(kameo::actor::pubsub::Publish($message))
+            .await
+    }};
+}

src/nextcloud/model.rs

@@ -63,6 +63,7 @@ newtype!(
     Hash,
     PartialOrd,
     Ord,
+    kameo::Reply,
     "ID of a Nextcloud Label"
 );
 newtype!(