feat: unify provider active logic and add env field support for kimi_code_io

src-tauri/src/commands.rs

@@ -87,12 +87,13 @@ fn active_provider_and_model(config: &Config) -> Option<(String, String)> {
 }
 
 fn build_active_config(config: &Config) -> Config {
-    let is_kimi_native = |p: &Provider| p.managed;
-
+    // Only the provider explicitly marked as active is written to the agent's
+    // native config. This ensures Kimi Code / Pi follow Pi Switch's choice
+    // instead of falling back to a managed/native provider.
     let providers: IndexMap<String, Provider> = config
         .providers
         .iter()
-        .filter(|(_, p)| is_kimi_native(p) || p.active)
+        .filter(|(_, p)| p.active)
         .map(|(k, p)| (k.clone(), p.clone()))
         .collect();
 

src-tauri/src/db.rs

@@ -258,6 +258,7 @@ fn set_setting_tx(tx: &rusqlite::Transaction, key: &str, value: &str) -> DbResul
 fn provider_type_for_str(s: &str) -> ProviderType {
     match s {
         "anthropic" => ProviderType::Anthropic,
+        "openai" => ProviderType::Openai,
         "openai_responses" => ProviderType::OpenaiResponses,
         "google-genai" => ProviderType::GoogleGenai,
         "vertexai" => ProviderType::Vertexai,

src-tauri/src/kimi_code_io.rs

@@ -16,9 +16,10 @@ use crate::models::{Agent, Config, Model, Provider, ProviderType};
 pub type KimiResult<T> = anyhow::Result<T>;
 
 pub fn kimi_code_config_dir() -> PathBuf {
-    dirs::home_dir()
-        .map(|h| h.join(".kimi-code"))
-        .expect("failed to resolve home directory")
+    std::env::var_os("KIMI_CODE_HOME")
+        .map(PathBuf::from)
+        .or_else(|| dirs::home_dir().map(|h| h.join(".kimi-code")))
+        .expect("failed to resolve Kimi Code config directory")
 }
 
 pub fn kimi_code_config_path() -> PathBuf {
@@ -101,6 +102,16 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
                 || table.get("managed").and_then(|v| v.as_bool()).unwrap_or(false);
             let enabled = table.get("enabled").and_then(|v| v.as_bool()).unwrap_or(true);
 
+            let env: IndexMap<String, String> = table
+                .get("env")
+                .and_then(|v| v.as_table())
+                .map(|t| {
+                    t.iter()
+                        .filter_map(|(k, v)| v.as_str().map(|s| (k.clone(), s.to_string())))
+                        .collect()
+                })
+                .unwrap_or_default();
+
             let raw_other = {
                 let mut rest = table.clone();
                 rest.remove("type");
@@ -109,6 +120,7 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
                 rest.remove("managed");
                 rest.remove("enabled");
                 rest.remove("oauth");
+                rest.remove("env");
                 toml_value_to_json(&TomlValue::Table(rest))
             };
 
@@ -119,7 +131,7 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
                     provider_type,
                     base_url: base_url.filter(|s| !s.is_empty()),
                     api_key: api_key.filter(|s| !s.is_empty()),
-                    env: IndexMap::new(),
+                    env,
                     note: None,
                     official_url: None,
                     managed,
@@ -226,13 +238,11 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
             .unwrap_or(TomlValue::String("".to_string())),
     );
 
-    let is_kimi_native = |p: &Provider| p.managed;
-
     let mut providers_table = Table::new();
     for (name, provider) in &config.providers {
-        // Skip inactive custom providers when writing to Kimi Code config.
-        // Kimi native (managed) providers are always preserved.
-        if !is_kimi_native(provider) && !provider.active {
+        // Only write the active provider to Kimi Code config so the agent
+        // follows Pi Switch's selection.
+        if !provider.active {
             continue;
         }
         let mut pt = Table::new();
@@ -244,6 +254,13 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
             pt.insert("api_key".to_string(), TomlValue::String(api_key));
         }
         pt.insert("enabled".to_string(), TomlValue::Boolean(provider.enabled));
+        if !provider.env.is_empty() {
+            let mut env_table = Table::new();
+            for (k, v) in &provider.env {
+                env_table.insert(k.clone(), TomlValue::String(v.clone()));
+            }
+            pt.insert("env".to_string(), TomlValue::Table(env_table));
+        }
         if provider.managed {
             // Preserve existing oauth config if present, otherwise create a default entry.
             let oauth = provider
@@ -258,9 +275,10 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
                 });
             pt.insert("oauth".to_string(), oauth);
         }
-        // Merge remaining raw fields (oauth is handled explicitly above).
+        // Merge remaining raw fields (oauth and env are handled explicitly above).
         if let TomlValue::Table(mut extra) = json_to_toml(&provider.raw_other).unwrap_or(TomlValue::Table(Table::new())) {
             extra.remove("oauth");
+            extra.remove("env");
             for (k, v) in extra {
                 pt.insert(k, v);
             }
@@ -273,7 +291,7 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
     let active_provider_names: std::collections::HashSet<&str> = config
         .providers
         .values()
-        .filter(|p| is_kimi_native(p) || p.active)
+        .filter(|p| p.active)
         .map(|p| p.name.as_str())
         .collect();
 

src-tauri/src/pi_io.rs

@@ -17,9 +17,10 @@ pub type PiResult<T> = anyhow::Result<T>;
 
 /// Returns the default Pi agent config directory for the current user.
 pub fn pi_agent_dir() -> PathBuf {
-    dirs::home_dir()
-        .map(|h| h.join(".pi").join("agent"))
-        .expect("failed to resolve home directory")
+    std::env::var_os("PI_CODING_AGENT_DIR")
+        .map(PathBuf::from)
+        .or_else(|| dirs::home_dir().map(|h| h.join(".pi").join("agent")))
+        .expect("failed to resolve Pi agent config directory")
 }
 
 /// Returns the path to Pi's `models.json` file.

src/App.tsx

@@ -195,15 +195,14 @@ export default function App() {
   const handleSwitchProvider = async (name: string) => {
     updateConfig((cfg) => {
       const target = cfg.providers[name];
-      if (!target || target.managed) return cfg;
+      if (!target) return cfg;
 
-      const isKimiNative = (p: Provider) => p.managed === true;
-
-      // Mark the selected provider as active and deactivate other custom providers.
-      // Kimi native providers are left untouched. No provider/model records are deleted.
+      // Only the selected provider is active. All other providers (including
+      // Kimi native/managed and custom) are deactivated so the target agent
+      // follows Pi Switch's choice exactly.
       const providers: Record<string, Provider> = {};
       for (const [key, p] of Object.entries(cfg.providers)) {
-        providers[key] = { ...p, active: isKimiNative(p) ? undefined : key === name };
+        providers[key] = { ...p, active: key === name };
       }
 
       // Set default model to the first model of the selected provider.

src/components/ProviderList.tsx

@@ -94,8 +94,7 @@ export function ProviderList({
               const defaultModelName = defaultModel
                 ? models[defaultModel]?.display_name || defaultModel
                 : null;
-              const isKimiNative = provider.managed === true;
-              const isActive = !isKimiNative && provider.active === true;
+              const isActive = provider.active === true;
 
               return (
                 <div