refactoring

partially implement tts for human interface

src/model.rs

@@ -1,10 +1,10 @@
-use crate::translate;
 use crate::config::OllamaModelConfig;
+use crate::tlt;
+use crate::translate;
 use ollama_rs::Ollama;
 use ollama_rs::error::OllamaError;
 use ollama_rs::models::ModelOptions;
 use ollama_rs::models::create::{CreateModelRequest, CreateModelStatus};
-use crate::tlt;
 
 pub async fn create_model_from_config(
     ollama: &Ollama,
@@ -14,7 +14,22 @@ pub async fn create_model_from_config(
         .num_ctx(config.context_size.unwrap_or(2048)) // 2048 is the ollama default.
         .temperature(config.temperature.unwrap_or(0.8)); // 0.8 is the ollama default
 
-    let system_prompt = config.system_prompt.clone().unwrap_or(tlt!("system_prompt"));
+    let system_prompt = config
+        .system_prompt
+        .clone()
+        .unwrap_or(tlt!("system_prompt"));
+
+    // print message to warn user of long waiting times
+    if let Ok(models) = ollama.list_local_models().await
+        && !models.iter().any(|m| m.name == config.from_model)
+    {
+        let message = format!(
+            "Model `{}` is not installed and will be downloaded first.",
+            config.from_model
+        );
+        log::info!("{}", message);
+        println!("{}", console::style(message).yellow().bold());
+    }
 
     ollama
         .create_model(