feat: `.model` repl completions show max tokens and price (#462)

src/client/common.rs

@@ -147,17 +147,22 @@ macro_rules! register_client {
             anyhow::bail!("Unknown client '{}'", client)
         }
 
-        pub fn list_models(config: &$crate::config::Config) -> Vec<$crate::client::Model> {
-            config
-                .clients
-                .iter()
-                .flat_map(|v| match v {
-                    $(ClientConfig::$config(c) => $client::list_models(c),)+
-                    ClientConfig::Unknown => vec![],
-                })
-                .collect()
+        static mut ALL_CLIENTS: Option<Vec<$crate::client::Model>> = None;
+
+        pub fn list_models(config: &$crate::config::Config) -> Vec<&$crate::client::Model> {
+            if unsafe { ALL_CLIENTS.is_none() } {
+                let models: Vec<_> = config
+                    .clients
+                    .iter()
+                    .flat_map(|v| match v {
+                        $(ClientConfig::$config(c) => $client::list_models(c),)+
+                        ClientConfig::Unknown => vec![],
+                    })
+                    .collect();
+                unsafe { ALL_CLIENTS = Some(models) };
+            }
+            unsafe { ALL_CLIENTS.as_ref().unwrap().iter().collect() }
         }
-
     };
 }
 

src/client/model.rs

@@ -1,6 +1,6 @@
 use super::message::{Message, MessageContent};
 
-use crate::utils::count_tokens;
+use crate::utils::{count_tokens, format_option_value};
 
 use anyhow::{bail, Result};
 use serde::Deserialize;
@@ -14,6 +14,9 @@ pub struct Model {
     pub name: String,
     pub max_input_tokens: Option<usize>,
     pub max_output_tokens: Option<isize>,
+    pub ref_max_output_tokens: Option<isize>,
+    pub input_price: Option<f64>,
+    pub output_price: Option<f64>,
     pub extra_fields: Option<serde_json::Map<String, serde_json::Value>>,
     pub capabilities: ModelCapabilities,
 }
@@ -32,6 +35,9 @@ impl Model {
             extra_fields: None,
             max_input_tokens: None,
             max_output_tokens: None,
+            ref_max_output_tokens: None,
+            input_price: None,
+            output_price: None,
             capabilities: ModelCapabilities::Text,
         }
     }
@@ -43,13 +49,16 @@ impl Model {
                 Model::new(client_name, &v.name)
                     .set_max_input_tokens(v.max_input_tokens)
                     .set_max_output_tokens(v.max_output_tokens)
+                    .set_ref_max_output_tokens(v.ref_max_output_tokens)
+                    .set_input_price(v.input_price)
+                    .set_output_price(v.output_price)
                     .set_supports_vision(v.supports_vision)
                     .set_extra_fields(&v.extra_fields)
             })
             .collect()
     }
 
-    pub fn find(models: &[Self], value: &str) -> Option<Self> {
+    pub fn find(models: &[&Self], value: &str) -> Option<Self> {
         let mut model = None;
         let (client_name, model_name) = match value.split_once(':') {
             Some((client_name, model_name)) => {
@@ -64,16 +73,16 @@ impl Model {
         match model_name {
             Some(model_name) => {
                 if let Some(found) = models.iter().find(|v| v.id() == value) {
-                    model = Some(found.clone());
+                    model = Some((*found).clone());
                 } else if let Some(found) = models.iter().find(|v| v.client_name == client_name) {
-                    let mut found = found.clone();
+                    let mut found = (*found).clone();
                     found.name = model_name.to_string();
                     model = Some(found)
                 }
             }
             None => {
                 if let Some(found) = models.iter().find(|v| v.client_name == client_name) {
-                    model = Some(found.clone());
+                    model = Some((*found).clone());
                 }
             }
         }
@@ -84,6 +93,23 @@ impl Model {
         format!("{}:{}", self.client_name, self.name)
     }
 
+    pub fn description(&self) -> String {
+        let max_input_tokens = format_option_value(&self.max_input_tokens);
+        let max_output_tokens =
+            format_option_value(&self.max_output_tokens.or(self.ref_max_output_tokens));
+        let input_price = format_option_value(&self.input_price);
+        let output_price = format_option_value(&self.output_price);
+        let vision = if self.capabilities.contains(ModelCapabilities::Vision) {
+            "👁"
+        } else {
+            ""
+        };
+        format!(
+            "{:>8} / {:>8}  |  {:>6} / {:>6}  {}",
+            max_input_tokens, max_output_tokens, input_price, output_price, vision
+        )
+    }
+
     pub fn set_max_input_tokens(mut self, max_input_tokens: Option<usize>) -> Self {
         match max_input_tokens {
             None | Some(0) => self.max_input_tokens = None,
@@ -100,6 +126,30 @@ impl Model {
         self
     }
 
+    pub fn set_ref_max_output_tokens(mut self, ref_max_output_tokens: Option<isize>) -> Self {
+        match ref_max_output_tokens {
+            None | Some(0) => self.ref_max_output_tokens = None,
+            _ => self.ref_max_output_tokens = ref_max_output_tokens,
+        }
+        self
+    }
+
+    pub fn set_input_price(mut self, input_price: Option<f64>) -> Self {
+        match input_price {
+            None => self.input_price = None,
+            _ => self.input_price = input_price,
+        }
+        self
+    }
+
+    pub fn set_output_price(mut self, output_price: Option<f64>) -> Self {
+        match output_price {
+            None => self.output_price = None,
+            _ => self.output_price = output_price,
+        }
+        self
+    }
+
     pub fn set_supports_vision(mut self, supports_vision: bool) -> Self {
         if supports_vision {
             self.capabilities |= ModelCapabilities::Vision;
@@ -178,6 +228,8 @@ pub struct ModelConfig {
     pub name: String,
     pub max_input_tokens: Option<usize>,
     pub max_output_tokens: Option<isize>,
+    #[serde(rename = "max_output_tokens?")]
+    pub ref_max_output_tokens: Option<isize>,
     pub input_price: Option<f64>,
     pub output_price: Option<f64>,
     #[serde(default)]

src/config/mod.rs

@@ -11,7 +11,10 @@ use crate::client::{
     create_client_config, list_client_types, list_models, ClientConfig, Message, Model, SendData,
 };
 use crate::render::{MarkdownRender, RenderOptions};
-use crate::utils::{get_env_name, light_theme_from_colorfgbg, now, render_prompt, set_text};
+use crate::utils::{
+    format_option_value, fuzzy_match, get_env_name, light_theme_from_colorfgbg, now, render_prompt,
+    set_text,
+};
 
 use anyhow::{anyhow, bail, Context, Result};
 use inquire::{Confirm, Select, Text};
@@ -415,18 +418,18 @@ impl Config {
             .map_or_else(|| String::from("no"), |v| v.to_string());
         let items = vec![
             ("model", self.model.id()),
-            ("temperature", format_option(&self.temperature)),
-            ("top_p", format_option(&self.top_p)),
+            ("temperature", format_option_value(&self.temperature)),
+            ("top_p", format_option_value(&self.top_p)),
             ("dry_run", self.dry_run.to_string()),
             ("save", self.save.to_string()),
-            ("save_session", format_option(&self.save_session)),
+            ("save_session", format_option_value(&self.save_session)),
             ("highlight", self.highlight.to_string()),
             ("light_theme", self.light_theme.to_string()),
             ("wrap", wrap),
             ("wrap_code", self.wrap_code.to_string()),
             ("auto_copy", self.auto_copy.to_string()),
             ("keybindings", self.keybindings.stringify().into()),
-            ("prelude", format_option(&self.prelude)),
+            ("prelude", format_option_value(&self.prelude)),
             ("compress_threshold", self.compress_threshold.to_string()),
             ("config_file", display_path(&Self::config_file()?)),
             ("roles_file", display_path(&Self::roles_file()?)),
@@ -476,12 +479,23 @@ impl Config {
             .unwrap_or_default()
     }
 
-    pub fn repl_complete(&self, cmd: &str, args: &[&str]) -> Vec<String> {
+    pub fn repl_complete(&self, cmd: &str, args: &[&str]) -> Vec<(String, String)> {
         let (values, filter) = if args.len() == 1 {
             let values = match cmd {
-                ".role" => self.roles.iter().map(|v| v.name.clone()).collect(),
-                ".model" => list_models(self).into_iter().map(|v| v.id()).collect(),
-                ".session" => self.list_sessions(),
+                ".role" => self
+                    .roles
+                    .iter()
+                    .map(|v| (v.name.clone(), String::new()))
+                    .collect(),
+                ".model" => list_models(self)
+                    .into_iter()
+                    .map(|v| (v.id(), v.description()))
+                    .collect(),
+                ".session" => self
+                    .list_sessions()
+                    .into_iter()
+                    .map(|v| (v.clone(), String::new()))
+                    .collect(),
                 ".set" => vec![
                     "temperature ",
                     "top_p ",
@@ -493,7 +507,7 @@ impl Config {
                     "auto_copy ",
                 ]
                 .into_iter()
-                .map(|v| v.to_string())
+                .map(|v| (v.to_string(), String::new()))
                 .collect(),
                 _ => vec![],
             };
@@ -514,13 +528,16 @@ impl Config {
                 "auto_copy" => complete_bool(self.auto_copy),
                 _ => vec![],
             };
-            (values, args[1])
+            (
+                values.into_iter().map(|v| (v, String::new())).collect(),
+                args[1],
+            )
         } else {
             return vec![];
         };
         values
             .into_iter()
-            .filter(|v| v.starts_with(filter))
+            .filter(|(value, _)| fuzzy_match(value, filter))
             .collect()
     }
 
@@ -1136,16 +1153,6 @@ where
     Ok(value)
 }
 
-fn format_option<T>(value: &Option<T>) -> String
-where
-    T: std::fmt::Display,
-{
-    match value {
-        Some(value) => value.to_string(),
-        None => "-".to_string(),
-    }
-}
-
 fn complete_bool(value: bool) -> Vec<String> {
     vec![(!value).to_string()]
 }

src/repl/completer.rs

@@ -54,7 +54,7 @@ impl Completer for ReplCompleter {
                     .read()
                     .repl_complete(cmd, &args)
                     .iter()
-                    .map(|name| create_suggestion(name.clone(), None, span)),
+                    .map(|(value, description)| create_suggestion(value, description, span)),
             )
         }
 
@@ -69,7 +69,7 @@ impl Completer for ReplCompleter {
                 } else {
                     format!("{name} ")
                 };
-                create_suggestion(name, Some(description.to_string()), span)
+                create_suggestion(&name, description, span)
             }))
         }
         suggestions
@@ -105,9 +105,14 @@ impl ReplCompleter {
     }
 }
 
-fn create_suggestion(value: String, description: Option<String>, span: Span) -> Suggestion {
+fn create_suggestion(value: &str, description: &str, span: Span) -> Suggestion {
+    let description = if description.is_empty() {
+        None
+    } else {
+        Some(description.to_string())
+    };
     Suggestion {
-        value,
+        value: value.to_string(),
         description,
         style: None,
         extra: None,

src/utils/mod.rs

@@ -166,6 +166,33 @@ pub fn extract_block(input: &str) -> String {
     }
 }
 
+pub fn format_option_value<T>(value: &Option<T>) -> String
+where
+    T: std::fmt::Display,
+{
+    match value {
+        Some(value) => value.to_string(),
+        None => "-".to_string(),
+    }
+}
+
+pub fn fuzzy_match(text: &str, pattern: &str) -> bool {
+    let text_chars: Vec<char> = text.chars().collect();
+    let pattern_chars: Vec<char> = pattern.chars().collect();
+
+    let mut pattern_index = 0;
+    let mut text_index = 0;
+
+    while pattern_index < pattern_chars.len() && text_index < text_chars.len() {
+        if pattern_chars[pattern_index] == text_chars[text_index] {
+            pattern_index += 1;
+        }
+        text_index += 1;
+    }
+
+    pattern_index == pattern_chars.len()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -180,4 +207,11 @@ mod tests {
     fn test_count_tokens() {
         assert_eq!(count_tokens("😊 hello world"), 4);
     }
+
+    #[test]
+    fn test_fuzzy_match() {
+        assert!(fuzzy_match("openai:gpt-4-turbo", "gpt4"));
+        assert!(fuzzy_match("openai:gpt-4-turbo", "oai4"));
+        assert!(!fuzzy_match("openai:gpt-4-turbo", "4gpt"));
+    }
 }