fal video wip, polling more complete

crates/desktop/artcraft/src/commands/fal/fal_background_removal_command.rs

@@ -143,7 +143,7 @@ pub async fn fal_background_removal_command(
       //if let Err(err) = result {
       //  error!("Failed to emit event: {:?}", err);
       //}
-      
+
       Ok(FalBackgroundRemovalSuccessResponse {
         media_token: result.0.media_file.token,
         cdn_url: result.0.media_file.media_links.cdn_url,
@@ -159,7 +159,6 @@ enum InnerError {
   AnyhowError(AnyhowError),
   StorytellerApiError(ApiError),
   DecodeError(DecodeError),
-  //ImageError(image::ImageError),
   IoError(std::io::Error),
 }
 
@@ -187,12 +186,6 @@ impl From<DecodeError> for InnerError {
   }
 }
 
-//impl From<image::ImageError> for InnerError {
-//  fn from(value: image::ImageError) -> Self {
-//    Self::ImageError(value)
-//  }
-//}
-//
 impl From<std::io::Error> for InnerError {
   fn from(value: std::io::Error) -> Self {
     Self::IoError(value)

crates/desktop/artcraft/src/commands/fal/fal_kling_image_to_video_command.rs

@@ -0,0 +1,246 @@
+use crate::commands::command_response_wrapper::{CommandErrorResponseWrapper, CommandErrorStatus, CommandResult, SerializeMarker};
+use crate::events::sendable_event_trait::SendableEvent;
+use crate::events::sora::sora_image_enqueue_failure_event::SoraImageEnqueueFailureEvent;
+use crate::events::sora::sora_image_enqueue_success_event::SoraImageEnqueueSuccessEvent;
+use crate::state::data_dir::app_data_root::AppDataRoot;
+use crate::state::data_dir::trait_data_subdir::DataSubdir;
+use crate::state::fal::fal_credential_manager::FalCredentialManager;
+use crate::state::sora::read_sora_credentials_from_disk::read_sora_credentials_from_disk;
+use crate::state::sora::sora_credential_holder::SoraCredentialHolder;
+use crate::state::sora::sora_credential_manager::SoraCredentialManager;
+use crate::state::sora::sora_task_queue::SoraTaskQueue;
+use crate::state::storyteller::storyteller_credential_manager::StorytellerCredentialManager;
+use crate::utils::get_url_file_extension::get_url_file_extension;
+use crate::utils::simple_http_download::simple_http_download;
+use crate::utils::simple_http_download_to_tempfile::simple_http_download_to_tempfile;
+use anyhow::anyhow;
+use base64::prelude::BASE64_STANDARD;
+use base64::{DecodeError, Engine};
+use errors::{AnyhowError, AnyhowResult};
+use fal_client::fal_error_plus::FalErrorPlus;
+use fal_client::requests::remove_background_rembg::remove_background_rembg;
+use image::codecs::png::{CompressionType, FilterType, PngEncoder};
+use image::{DynamicImage, EncodableLayout, ImageReader};
+use log::{debug, error, info, warn};
+use mimetypes::mimetype_info::mimetype_info::MimetypeInfo;
+use openai_sora_client::credentials::SoraCredentials;
+use openai_sora_client::creds::credential_migration::CredentialMigrationRef;
+use openai_sora_client::recipes::image_remix_with_session_auto_renew::{image_remix_with_session_auto_renew, ImageRemixAutoRenewRequest};
+use openai_sora_client::recipes::image_upload_from_file_with_session_auto_renew::{image_upload_from_file_with_session_auto_renew, ImageUploadFromFileAutoRenewRequest};
+use openai_sora_client::recipes::maybe_upgrade_or_renew_session::maybe_upgrade_or_renew_session;
+use openai_sora_client::requests::image_gen::common::{ImageSize, NumImages};
+use openai_sora_client::requests::image_gen::sora_image_gen_remix::{sora_image_gen_remix, SoraImageGenRemixRequest};
+use openai_sora_client::requests::upload::upload_media_from_bytes::sora_media_upload_from_bytes;
+use openai_sora_client::requests::upload::upload_media_from_file::sora_media_upload_from_file;
+use openai_sora_client::sora_error::SoraError;
+use reqwest::Url;
+use serde_derive::{Deserialize, Serialize};
+use std::fs::read_to_string;
+use std::io::{Cursor, Read, Write};
+use std::ops::Add;
+use std::path::PathBuf;
+use std::time::Duration;
+use storyteller_client::api_error::ApiError;
+use storyteller_client::api_error::ApiError::InternalServerError;
+use storyteller_client::media_files::get_media_file::{get_media_file, GetMediaFileSuccessResponse};
+use storyteller_client::media_files::upload_image_media_file_from_file::upload_image_media_file_from_file;
+use storyteller_client::utils::api_host::ApiHost;
+use tauri::{AppHandle, Emitter, Manager, State};
+use tempfile::NamedTempFile;
+use fal_client::requests::enqueue_kling_16_image_to_video::{enqueue_kling_16_image_to_video, Kling16Args, Kling16Duration};
+use filesys::file_read_bytes::file_read_bytes;
+use tokens::tokens::media_files::MediaFileToken;
+
+#[derive(Deserialize)]
+pub struct FalKlingImageToVideoRequest {
+  /// Image media file; the image to remove the background from.
+  pub image_media_token: Option<MediaFileToken>,
+
+  /// Base64-encoded image
+  pub base64_image: Option<String>,
+}
+
+#[derive(Serialize, Debug)]
+#[serde(rename_all = "snake_case")]
+pub enum SoraImageRemixErrorType {
+  /// Generic server error
+  ServerError,
+  /// No Fal API key available
+  NeedsFalApiKey,
+}
+
+
+#[tauri::command]
+pub async fn fal_kling_image_to_video_command(
+  request: FalKlingImageToVideoRequest,
+  app_data_root: State<'_, AppDataRoot>,
+  fal_creds_manager: State<'_, FalCredentialManager>,
+  storyteller_creds_manager: State<'_, StorytellerCredentialManager>,
+) -> CommandResult<(), SoraImageRemixErrorType, ()> {
+
+  info!("fal_kling_image_to_video_command called; image media token: {:?}", request.image_media_token);
+
+  let has_credentials = fal_creds_manager
+      .has_apparent_api_token()
+      .unwrap_or(true); // NB: Failures would be lock issues
+
+  if !has_credentials {
+    warn!("No API key found");
+    return Err(CommandErrorResponseWrapper {
+      status: CommandErrorStatus::Unauthorized,
+      error_message: Some("You need to set a FAL api key".to_string()),
+      error_type: Some(SoraImageRemixErrorType::NeedsFalApiKey),
+      error_details: None,
+    });
+  }
+
+  let result = image_to_video(
+    request,
+    &app_data_root,
+    &fal_creds_manager,
+    &storyteller_creds_manager
+  ).await;
+  
+  if let Err(err) = result {
+    error!("error: {:?}", err);
+
+    //let event = SoraImageEnqueueFailureEvent {};
+    //let result = event.send(&app);
+    //if let Err(err) = result {
+    //  error!("Failed to emit event: {:?}", err);
+    //}
+
+    let mut status = CommandErrorStatus::ServerError;
+    let mut error_type = SoraImageRemixErrorType::ServerError;
+    let mut error_message = "A server error occurred. Please try again. If it continues, please tell our staff about the problem.";
+
+    //match (err) {
+    //  _ => {},
+    //}
+
+    return Err(CommandErrorResponseWrapper {
+      status,
+      error_message: Some(error_message.to_string()),
+      error_type: Some(error_type),
+      error_details: None,
+    })
+  }
+  
+  //let event = SoraImageEnqueueSuccessEvent {};
+  //let result = event.send(&app);
+  //if let Err(err) = result {
+  //  error!("Failed to emit event: {:?}", err);
+  //}
+  
+  Ok(().into())
+}
+
+#[derive(Debug)]
+enum InnerError {
+  FalError(FalErrorPlus),
+  AnyhowError(AnyhowError),
+  StorytellerApiError(ApiError),
+  DecodeError(DecodeError),
+  IoError(std::io::Error),
+}
+
+impl From<AnyhowError> for InnerError {
+  fn from(value: AnyhowError) -> Self {
+    Self::AnyhowError(value)
+  }
+}
+
+impl From<FalErrorPlus> for InnerError {
+  fn from(value: FalErrorPlus) -> Self {
+    Self::FalError(value)
+  }
+}
+
+impl From<ApiError> for InnerError {
+  fn from(value: ApiError) -> Self {
+    Self::StorytellerApiError(value)
+  }
+}
+
+impl From<DecodeError> for InnerError {
+  fn from(value: DecodeError) -> Self {
+    Self::DecodeError(value)
+  }
+}
+
+impl From<std::io::Error> for InnerError {
+  fn from(value: std::io::Error) -> Self {
+    Self::IoError(value)
+  }
+}
+
+pub async fn image_to_video(
+  request: FalKlingImageToVideoRequest,
+  app_data_root: &AppDataRoot,
+  fal_creds_manager: &FalCredentialManager,
+  storyteller_creds_manager: &StorytellerCredentialManager,
+) -> Result<(), InnerError> {
+
+  let api_key = fal_creds_manager.get_key_required()?;
+  let creds = storyteller_creds_manager.get_credentials_required()?;
+
+  let mut temp_download;
+
+  if let Some(media_token) = request.image_media_token {
+    temp_download = download_media_file(&app_data_root, &media_token).await?;
+
+  } else if let Some(base64_bytes) = request.base64_image {
+    temp_download = persist_base64(&app_data_root, base64_bytes).await?;
+  } else {
+    return Err(InnerError::AnyhowError(anyhow!("No image media token or base64 image provided")));
+  }
+
+  info!("Calling FAL image to video ...");
+
+  let filename = temp_download.path().to_path_buf();
+
+  let enqueued = enqueue_kling_16_image_to_video(Kling16Args {
+    image_path: filename,
+    api_key: &api_key,
+    duration: Kling16Duration::Default,
+  }).await?;
+  
+  // TODO: Handle event polling
+
+  Ok(())
+}
+
+async fn download_media_file(app_data_root: &AppDataRoot, token: &MediaFileToken) -> Result<NamedTempFile, InnerError> {
+  let response = get_media_file(&ApiHost::Storyteller, token).await?;
+
+  let media_file_url = &response.media_file.media_links.cdn_url;
+
+  let extension_with_dot = get_url_file_extension(media_file_url)
+      .map(|ext| format!(".{}", ext))
+      .unwrap_or_else(|| ".png".to_string());
+
+  //let filename = format!("{}{}", response.media_file.token.as_str(), extension_with_dot);
+  //let filename = app_data_root.downloads_dir().path().join(&filename);
+
+  let mut file = app_data_root.temp_dir().new_named_temp_file_with_extension(&extension_with_dot)?;
+
+  simple_http_download_to_tempfile(&media_file_url, &mut file).await?;
+
+  Ok(file) // NB: Must return TempFile to not drop / delete it
+}
+
+async fn persist_base64(app_data_root: &AppDataRoot, base64_image: String) -> Result<NamedTempFile, InnerError> {
+  let bytes = BASE64_STANDARD.decode(base64_image)?;
+
+  let extension = MimetypeInfo::get_for_bytes(&bytes)
+      .map(|info| info.file_extension())
+      .flatten()
+      .map(|ext| ext.extension_with_period().to_string())
+      .unwrap_or_else(|| ".png".to_string());
+
+  let mut file = app_data_root.temp_dir().new_named_temp_file_with_extension(&extension)?;
+
+  file.write_all(bytes.as_ref())?;
+
+  Ok(file) // NB: Must return TempFile to not drop / delete it
+}

crates/desktop/artcraft/src/commands/fal/mod.rs

@@ -1,3 +1,4 @@
 pub mod fal_background_removal_command;
+pub mod fal_kling_image_to_video_command;
 pub mod get_fal_api_key_command;
 pub mod set_fal_api_key_command;

crates/desktop/artcraft/src/lib.rs

@@ -10,6 +10,7 @@ use tauri::Manager;
 use crate::commands::app_preferences::get_app_preferences_command::get_app_preferences_command;
 use crate::commands::app_preferences::update_app_preference_command::update_app_preferences_command;
 use crate::commands::fal::fal_background_removal_command::fal_background_removal_command;
+use crate::commands::fal::fal_kling_image_to_video_command::fal_kling_image_to_video_command;
 use crate::commands::fal::get_fal_api_key_command::get_fal_api_key_command;
 use crate::commands::fal::set_fal_api_key_command::set_fal_api_key_command;
 use crate::commands::flip_image::flip_image;
@@ -22,12 +23,14 @@ use crate::commands::sora::sora_logout_command::sora_logout_command;
 use crate::state::app_preferences::app_preferences_manager::load_app_preferences_or_default;
 use crate::state::data_dir::app_data_root::AppDataRoot;
 use crate::state::fal::fal_credential_manager::FalCredentialManager;
+use crate::state::fal::fal_task_queue::FalTaskQueue;
 use crate::state::main_window_position::MainWindowPosition;
 use crate::state::main_window_size::MainWindowSize;
 use crate::state::sora::sora_credential_manager::SoraCredentialManager;
 use crate::state::sora::sora_task_queue::SoraTaskQueue;
 use crate::state::storyteller::storyteller_credential_manager::StorytellerCredentialManager;
 use crate::threads::discord_presence_thread::discord_presence_thread;
+use crate::threads::fal_task_polling_thread::fal_task_polling_thread;
 use crate::threads::main_window_thread::main_window_thread::main_window_thread;
 use crate::threads::sora_task_polling_thread::sora_task_polling_thread;
 use crate::utils::webview_unsafe::webview_unsafe_for_app;
@@ -59,11 +62,15 @@ pub fn run() {
   
   println!("Attempting to read existing fal credentials...");
   let fal_creds_manager = FalCredentialManager::initialize_from_disk_infallible(&app_data_root);
+  let fal_creds_manager_2 = fal_creds_manager.clone();
 
   // Other state
   let sora_task_queue = SoraTaskQueue::new();
   let sora_task_queue_2 = sora_task_queue.clone();
 
+  let fal_task_queue = FalTaskQueue::new();
+  let fal_task_queue_2 = fal_task_queue.clone();
+
   println!("Initializing backend runtime...");
 
   tauri::Builder::default()
@@ -97,13 +104,19 @@ pub fn run() {
         eprintln!("Error setting webview unsafe: {:?}", err);
       }
 
+      // TODO(bt): Clean this up. We can just clone at the callsite. Also clean initialization
       let app_2 = app.clone();
       let app_3 = app.clone();
       let app_4 = app.clone();
+      let app_5 = app.clone();
       let app_data_root_3 = app_data_root_2.clone();
       let app_data_root_4 = app_data_root_2.clone();
+      let app_data_root_5 = app_data_root_2.clone();
       let sora_creds_manager_3 = sora_creds_manager_2.clone();
       let storyteller_creds_manager_3 = storyteller_creds_manager.clone();
+      let storyteller_creds_manager_4 = storyteller_creds_manager.clone();
+      let fal_creds_manager_3 = fal_creds_manager_2.clone();
+      let fal_task_queue_3 = fal_task_queue_2.clone();
 
       match MainWindowSize::from_filesystem_configs(&app_data_root_3) {
         Ok(None) => {}
@@ -136,18 +149,21 @@ pub fn run() {
       tauri::async_runtime::spawn(main_window_thread(app_3, app_data_root_3, storyteller_creds_manager_2));
       tauri::async_runtime::spawn(sora_task_polling_thread(app_4, app_data_root_4, sora_creds_manager_3, storyteller_creds_manager_3, sora_task_queue_2));
       tauri::async_runtime::spawn(discord_presence_thread());
+      tauri::async_runtime::spawn(fal_task_polling_thread(app_5, app_data_root_5, fal_creds_manager_3, storyteller_creds_manager_4, fal_task_queue_3));
 
       Ok(())
     })
     .manage(app_data_root)
     .manage(app_preferences)
-    .manage(sora_creds_manager)
     .manage(fal_creds_manager)
+    .manage(fal_task_queue)
+    .manage(sora_creds_manager)
     .manage(sora_task_queue)
     .manage(storyteller_creds_manager_3)
     .invoke_handler(tauri::generate_handler![
       check_sora_session_command,
       fal_background_removal_command,
+      fal_kling_image_to_video_command,
       flip_image,
       get_app_preferences_command,
       get_fal_api_key_command,

crates/desktop/artcraft/src/state/fal/fal_task_queue.rs

@@ -0,0 +1,164 @@
+use chrono::{DateTime, Utc};
+use errors::AnyhowResult;
+use fal_client::model::enqueued_request::EnqueuedRequest;
+use fal_client::model::fal_request_id::FalRequestId;
+use indexmap::IndexMap;
+use std::collections::HashSet;
+use std::sync::{Arc, RwLock};
+
+#[derive(Clone)]
+pub struct FalTaskDetails {
+  pub enqueue_time: DateTime<Utc>,
+  pub enqueued_request: EnqueuedRequest,
+}
+
+impl FalTaskDetails {
+  pub fn for_request(request: EnqueuedRequest) -> Self {
+    Self {
+      enqueue_time: Utc::now(),
+      enqueued_request: request,
+    }
+  }
+}
+
+#[derive(Clone)]
+pub struct FalTaskQueue {
+  // Insertion-order map of task IDs to task details
+  queue: Arc<RwLock<IndexMap<FalRequestId, FalTaskDetails>>>
+}
+
+impl FalTaskQueue {
+  pub fn new() -> Self {
+    Self {
+      queue: Arc::new(RwLock::new(IndexMap::new()))
+    }
+  }
+
+  /// Determine if queue is empty
+  /// This is an O(1) operation.
+  pub fn is_empty(&self) -> AnyhowResult<bool> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => Ok(lock.is_empty())
+    }
+  }
+
+  /// Get length of set
+  /// This is an O(1) operation.
+  pub fn len(&self) -> AnyhowResult<usize> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => Ok(lock.len())
+    }
+  }
+  
+  /// Get the task at an index.
+  /// This is an O(1) operation.
+  pub fn get_index(&self, i: usize) -> AnyhowResult<Option<FalTaskDetails>> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => {
+        if i >= lock.len() {
+          Ok(None)
+        } else {
+          match lock.get_index(i) {
+            None => Ok(None),
+            Some((_key, value)) => {
+              Ok(Some(value.clone()))
+            }
+          }
+        }
+      }
+    }
+  }
+
+  /// Determine if the key is in the queue
+  /// This is an O(1) operation.
+  pub fn contains_key(&self, request_id: &FalRequestId) -> AnyhowResult<bool> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => Ok(lock.contains_key(request_id))
+    }
+  }
+
+  /// Get the first enqueued task
+  /// This is an O(1) operation.
+  pub fn first(&self) -> AnyhowResult<Option<FalTaskDetails>> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => match lock.first() {
+        None => Ok(None),
+        Some((request_id, task_details)) => Ok(Some(task_details.clone()))
+      }
+    }
+  }
+
+  /// Get the last enqueued task
+  /// This is an O(1) operation.
+  pub fn last(&self) -> AnyhowResult<Option<FalTaskDetails>> {
+    match self.queue.read() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire read lock: {:?}", err))
+      }
+      Ok(lock) => match lock.last() {
+        None => Ok(None),
+        Some((request_id, task_details)) => Ok(Some(task_details.clone()))
+      }
+    }
+  }
+
+  /// Insert a new task. If a task already exists, we update its value.
+  /// This is an O(1) operation.
+  pub fn insert(&self, request: &EnqueuedRequest) -> AnyhowResult<Option<FalTaskDetails>> {
+    match self.queue.write() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire write lock: {:?}", err))
+      }
+      Ok(mut lock) => {
+        // NB: Probably fine to compute TaskDetails here for now. We may eventually expose this if we include additional info.
+        let task_details = FalTaskDetails::for_request(request.clone());
+        Ok(lock.insert(request.request_id.clone(), task_details))
+      }
+    }
+  }
+
+  /// Remove a task by ID.
+  /// This is an O(n) operation.
+  pub fn remove(&self, request_id: &FalRequestId) -> AnyhowResult<Option<FalTaskDetails>> {
+    match self.queue.write() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire write lock: {:?}", err))
+      }
+      Ok(mut lock) => {
+        Ok(lock.shift_remove(request_id))
+      }
+    }
+  }
+
+  /// Remove a list of tasks by ID.
+  /// This is an O(n) operation.
+  pub fn remove_list(&self, request_ids: &[&FalRequestId]) -> AnyhowResult<()> {
+    match self.queue.write() {
+      Err(err) => {
+        Err(anyhow::anyhow!("Failed to acquire write lock: {:?}", err))
+      }
+      Ok(mut lock) => {
+        // TODO: Cleaner way to do this?
+        let mut set : HashSet<&FalRequestId, _> = HashSet::with_capacity(request_ids.len());
+        set.extend(request_ids);
+        lock.retain(|k, v| !set.contains(k));
+        Ok(())
+      }
+    }
+  }
+}

crates/desktop/artcraft/src/state/fal/mod.rs

@@ -1,2 +1,3 @@
 pub mod fal_credential_manager;
+pub mod fal_task_queue;
 pub mod read_fal_api_key_from_disk;

crates/desktop/artcraft/src/threads/fal_task_polling_thread.rs

@@ -0,0 +1,187 @@
+use crate::events::sendable_event_trait::SendableEvent;
+use crate::events::sora::sora_image_generation_complete_event::SoraImageGenerationCompleteEvent;
+use crate::events::sora::sora_image_generation_failed_event::SoraImageGenerationFailedEvent;
+use crate::state::data_dir::app_data_root::AppDataRoot;
+use crate::state::data_dir::trait_data_subdir::DataSubdir;
+use crate::state::fal::fal_credential_manager::FalCredentialManager;
+use crate::state::fal::fal_task_queue::FalTaskQueue;
+use crate::state::sora::sora_credential_manager::SoraCredentialManager;
+use crate::state::storyteller::storyteller_credential_manager::StorytellerCredentialManager;
+use errors::AnyhowResult;
+use log::{error, info, warn};
+use openai_sora_client::requests::image_gen::image_gen_status::{Generation, TaskId, TaskStatus};
+use reqwest::Url;
+use serde_derive::Serialize;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+use storyteller_client::media_files::upload_image_media_file_from_file::upload_image_media_file_from_file;
+use storyteller_client::utils::api_host::ApiHost;
+use tauri::{AppHandle, Emitter};
+use tempdir::TempDir;
+use fal_client::fal_error_plus::FalErrorPlus;
+use fal_client::utils::queue_status_checker::QueueStatusChecker;
+use tokens::tokens::media_files::MediaFileToken;
+
+pub async fn fal_task_polling_thread(
+  app_handle: AppHandle,
+  app_data_root: AppDataRoot,
+  fal_creds_manager: FalCredentialManager,
+  storyteller_creds_manager: StorytellerCredentialManager,
+  fal_task_queue: FalTaskQueue,
+) -> ! {
+  loop {
+    let res = polling_loop(
+      &app_handle,
+      &fal_creds_manager,
+      &storyteller_creds_manager,
+      &fal_task_queue,
+      &app_data_root,
+    ).await;
+    if let Err(err) = res {
+      error!("An error occurred: {:?}", err);
+    }
+    tokio::time::sleep(std::time::Duration::from_millis(30_000)).await;
+  }
+}
+
+async fn polling_loop(
+  app_handle: &AppHandle,
+  fal_creds_manager: &FalCredentialManager,
+  storyteller_creds_manager: &StorytellerCredentialManager,
+  fal_task_queue: &FalTaskQueue,
+  app_data_root: &AppDataRoot,
+) -> AnyhowResult<()> {
+  loop {
+    if fal_task_queue.is_empty()? {
+      // No need to poll if we don't have pending tasks.
+      tokio::time::sleep(std::time::Duration::from_millis(1_000)).await;
+      continue;
+    }
+
+    info!("Task queue has {} pending tasks.", fal_task_queue.len()?);
+
+    let key = fal_creds_manager.get_key_required()?;
+    
+    let queue_status_checker = QueueStatusChecker::new(key);
+
+    // TODO: Clear completed tasks.
+    // let mut succeeded_tasks = Vec::new();
+    // let mut failed_tasks = Vec::new();
+    
+    let len = fal_task_queue.len()?;
+    
+    for i in 0..len {
+      let task = match fal_task_queue.get_index(i)? {
+        Some(task) => task,
+        None => {
+          warn!("Failed to get task ID at index {}", i);
+          break;
+        }
+      };
+      
+      info!("Checking task status for task ID: {:?}", &task.enqueued_request.request_id);
+      
+      let result = queue_status_checker.check_status(&task.enqueued_request).await;
+      
+      match result {
+        Err(err) => {
+          warn!("Error checking job status: {:?}", err);
+          tokio::time::sleep(std::time::Duration::from_millis(2_000)).await;
+          continue;
+        }
+        Ok(status) => {
+          info!("Status: {:?}", status);
+        }
+      }
+    }
+
+
+    
+//    // TODO: The cursoring logic likely needs to improve.
+//    for task in response.task_responses {
+//      let status = TaskStatus::from_str(&task.status);
+//
+//      match status {
+//        TaskStatus::Succeeded => {
+//          succeeded_tasks.push(task);
+//        }
+//        TaskStatus::Failed => {
+//          failed_tasks.push(task);
+//        }
+//        TaskStatus::Queued => {}
+//        TaskStatus::Running => {}
+//        TaskStatus::Unknown(_) => {}
+//      }
+//    }
+//
+//    for task in failed_tasks.iter() {
+//      if fal_task_queue.contains_key(&task.id)? {
+//        let event = SoraImageGenerationFailedEvent {
+//          prompt: task.prompt.clone(),
+//        };
+//        event.send(&app_handle)?;
+//      }
+//    }
+//
+//    let failed_task_ids: Vec<&TaskId> = failed_tasks
+//        .iter()
+//        .map(|task| &task.id)
+//        .collect();
+//
+//    fal_task_queue.remove_list(&failed_task_ids)?;
+//
+//    let creds = storyteller_creds_manager.get_credentials_required()?;
+//    let api_host = ApiHost::Storyteller;
+//
+//    for task in succeeded_tasks.iter() {
+//      if !fal_task_queue.contains_key(&task.id)? {
+//        continue;
+//      }
+//      info!("Task succeeded: {:?}", task.id);
+//
+//      for (i, generation) in task.generations.iter().enumerate() {
+//        info!("Downloading generated file...");
+//        let download_path = download_generation(generation, &app_data_root).await?;
+//
+//        info!("Uploading to backend...");
+//        let result = upload_image_media_file_from_file(&api_host, Some(&creds), download_path).await?;
+//
+//        info!("Uploaded to API backend: {:?}", result.media_file_token);
+//
+//        let event = SoraImageGenerationCompleteEvent {
+//          media_file_token: result.media_file_token,
+//        };
+//
+//        event.send(&app_handle)?;
+//      }
+//    }
+//
+//    let succeeded_task_ids : Vec<&TaskId> = succeeded_tasks
+//        .iter()
+//        .map(|task| &task.id)
+//        .collect();
+//
+//    fal_task_queue.remove_list(&succeeded_task_ids)?;
+
+    tokio::time::sleep(std::time::Duration::from_millis(6_000)).await;
+  }
+}
+
+async fn download_generation(generation: &Generation, app_data_root: &AppDataRoot) -> AnyhowResult<PathBuf> {
+  let url = Url::parse(&generation.url)?;
+
+  let response = reqwest::get(&generation.url).await?;
+  let image_bytes = response.bytes().await?;
+
+  let ext = url.path().split(".").last().unwrap_or("png");
+
+  let tempdir = app_data_root.temp_dir().path();
+  let download_filename = format!("{}.{}", generation.id, ext);
+  let download_path = tempdir.join(download_filename);
+
+  let mut file = File::create(&download_path)?;
+  file.write_all(&image_bytes)?;
+
+  Ok(download_path)
+}

crates/desktop/artcraft/src/threads/mod.rs

@@ -1,3 +1,4 @@
 pub mod discord_presence_thread;
+pub mod fal_task_polling_thread;
 pub mod main_window_thread;
 pub mod sora_task_polling_thread;

crates/lib/api_clients/fal_client/src/fal_error_plus.rs

@@ -10,6 +10,8 @@ pub enum FalErrorPlus {
   AnyhowError(anyhow::Error),
   /// URL parse errors.
   UrlParseError(url::ParseError),
+  /// An endpoint we don't support yet.
+  UnhandledEndpoint(String),
 }
 
 impl Display for FalErrorPlus {
@@ -18,6 +20,7 @@ impl Display for FalErrorPlus {
       Self::FalError(err) => write!(f, "FalErrorPlus::FalError: {:?}", err),
       Self::AnyhowError(err) => write!(f, "FalErrorPlus::AnyhowError: {:?}", err),
       Self::UrlParseError(err) => write!(f, "FalErrorPlus::UrlParseError: {:?}", err),
+      Self::UnhandledEndpoint(endpoint) => write!(f, "FalErrorPlus::UnhandledEndpoint: {:?}", endpoint),
     }
   }
 }

crates/lib/api_clients/fal_client/src/model/enqueued_request.rs

@@ -1,5 +1,6 @@
 use crate::creds::fal_api_key::FalApiKey;
 use crate::model::fal_endpoint::FalEndpoint;
+use crate::model::fal_request_id::FalRequestId;
 use errors::AnyhowResult;
 use fal::queue::{Queue, QueueResponse};
 use reqwest::Client;
@@ -8,7 +9,7 @@ use serde::de::DeserializeOwned;
 #[derive(Clone, Debug)]
 pub struct EnqueuedRequest {
   pub fal_endpoint: FalEndpoint,
-  pub request_id: String,
+  pub request_id: FalRequestId,
   pub response_url: String,
   pub status_url: String,
   pub cancel_url: String,
@@ -19,7 +20,7 @@ impl EnqueuedRequest {
     let endpoint = FalEndpoint::from_queue_response(queue);
     Ok(Self {
       fal_endpoint: endpoint.clone(),
-      request_id: queue.payload.request_id.clone(),
+      request_id: FalRequestId(queue.payload.request_id.clone()),
       response_url: queue.payload.response_url.clone(),
       status_url: queue.payload.status_url.clone(),
       cancel_url: queue.payload.cancel_url.clone(),
@@ -30,7 +31,7 @@ impl EnqueuedRequest {
     let client = Client::new();
     let endpoint = self.fal_endpoint.url();
     let payload = QueueResponse {
-      request_id: self.request_id.clone(),
+      request_id: self.request_id.0.clone(),
       response_url: self.response_url.clone(),
       status_url: self.status_url.clone(),
       cancel_url: self.cancel_url.clone(),

crates/lib/api_clients/fal_client/src/model/fal_request_id.rs

@@ -0,0 +1,13 @@
+use std::fmt::Display;
+use serde::{Deserialize, Serialize};
+use crate::model::fal_endpoint::FalEndpoint;
+
+/// A strongly typed request ID for the Fal API.
+#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, Serialize, Deserialize)]
+pub struct FalRequestId(pub String);
+
+impl Display for FalRequestId {
+  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    Display::fmt(&self.0, f)
+  }
+}

crates/lib/api_clients/fal_client/src/model/mod.rs

@@ -1,2 +1,3 @@
 pub mod enqueued_request;
-pub mod fal_endpoint;
+pub mod fal_endpoint;
+pub mod fal_request_id;

crates/lib/api_clients/fal_client/src/requests/mod.rs

@@ -1,2 +1,2 @@
-pub mod remove_background_rembg;
-mod enqueue_kling_16_image_to_video;
+pub mod enqueue_kling_16_image_to_video;
+pub mod remove_background_rembg;

crates/lib/api_clients/fal_client/src/utils/mod.rs

@@ -1,2 +1,3 @@
 pub mod clone_queue_payload;
-pub mod clone_queue_response;
+pub mod clone_queue_response;
+pub mod queue_status_checker;

crates/lib/api_clients/fal_client/src/utils/queue_status_checker.rs

@@ -0,0 +1,48 @@
+use fal::endpoints::fal_ai::kling_video::v1_6::pro::effects::I2VOutput;
+use fal::FalError;
+use fal::prelude::QueueResponse;
+use fal::queue::{Queue, QueueStatus};
+use reqwest::Client;
+use crate::creds::fal_api_key::FalApiKey;
+use crate::fal_error_plus::FalErrorPlus;
+use crate::model::enqueued_request::EnqueuedRequest;
+use crate::model::fal_endpoint::FalEndpoint;
+
+pub struct QueueStatusChecker {
+  api_key: FalApiKey,
+}
+
+impl QueueStatusChecker {
+  pub fn new(api_key: FalApiKey) -> Self {
+    Self { api_key }
+  }
+
+  pub async fn check_status(&self, request: &EnqueuedRequest) -> Result<QueueStatus, FalErrorPlus> {
+    let client = Client::new();
+    let endpoint = request.fal_endpoint.url();
+    
+    let payload = QueueResponse {
+      request_id: request.request_id.0.clone(),
+      response_url: request.response_url.clone(),
+      status_url: request.status_url.clone(),
+      cancel_url: request.cancel_url.clone(),
+    };
+    
+    let queue ;
+    
+    match &request.fal_endpoint {
+      FalEndpoint::Kling16ImageToVideo => {
+        // TODO: Cleanup / make concise
+        let f : Queue<I2VOutput> = Queue::new(client, endpoint, self.api_key.0.clone(), payload);
+        queue = f;
+      }
+      FalEndpoint::Other(endpoint) => {
+        return Err(FalErrorPlus::UnhandledEndpoint(format!("Unsupported endpoint: {}", endpoint)));
+      }
+    }
+    
+    let status = queue.status(false).await?;
+
+    Ok(status)
+  }
+}