use std::sync::Arc; use ::settings::{Settings, SettingsStore};use client::{Client, UserStore};use collections::HashSet;use credentials_provider::CredentialsProvider;use gpui::{App, Context, Entity};use language_model::{    ConfiguredModel, LanguageModelProviderId, LanguageModelRegistry, ZED_CLOUD_PROVIDER_ID,};use provider::deepseek::DeepSeekLanguageModelProvider; pub mod extension;pub mod provider;mod settings; pub use crate::extension::init_proxy as init_extension_proxy; use crate::provider::anthropic::AnthropicLanguageModelProvider;use crate::provider::bedrock::BedrockLanguageModelProvider;use crate::provider::cloud::CloudLanguageModelProvider;use crate::provider::copilot_chat::CopilotChatLanguageModelProvider;use crate::provider::google::GoogleLanguageModelProvider;use crate::provider::lmstudio::LmStudioLanguageModelProvider;pub use crate::provider::mistral::MistralLanguageModelProvider;use crate::provider::ollama::OllamaLanguageModelProvider;use crate::provider::open_ai::OpenAiLanguageModelProvider;use crate::provider::open_ai_compatible::OpenAiCompatibleLanguageModelProvider;use crate::provider::open_router::OpenRouterLanguageModelProvider;use crate::provider::openai_subscribed::OpenAiSubscribedProvider;use crate::provider::opencode::OpenCodeLanguageModelProvider;use crate::provider::vercel_ai_gateway::VercelAiGatewayLanguageModelProvider;use crate::provider::x_ai::XAiLanguageModelProvider;pub use crate::settings::*; pub fn init(user_store: Entity<UserStore>, client: Arc<Client>, cx: &mut App) {    let credentials_provider = client.credentials_provider();    let registry = LanguageModelRegistry::global(cx);    registry.update(cx, |registry, cx| {        register_language_model_providers(            registry,            user_store,            client.clone(),            credentials_provider.clone(),            cx,        );    });     // Subscribe to extension store events to track LLM extension installations    if let Some(extension_store) = extension_host::ExtensionStore::try_global(cx) {        cx.subscribe(&extension_store, {            let registry = registry.downgrade();            move |extension_store, event, cx| {                let Some(registry) = registry.upgrade() else {                    return;                };                match event {                    extension_host::Event::ExtensionInstalled(extension_id) => {                        if let Some(manifest) = extension_store                            .read(cx)                            .extension_manifest_for_id(extension_id)                        {                            if !manifest.language_model_providers.is_empty() {                                registry.update(cx, |registry, cx| {                                    registry.extension_installed(extension_id.clone(), cx);                                });                            }                        }                    }                    extension_host::Event::ExtensionUninstalled(extension_id) => {                        registry.update(cx, |registry, cx| {                            registry.extension_uninstalled(extension_id, cx);                        });                    }                    extension_host::Event::ExtensionsUpdated => {                        let mut new_ids = HashSet::default();                        for (extension_id, entry) in extension_store.read(cx).installed_extensions()                        {                            if !entry.manifest.language_model_providers.is_empty() {                                new_ids.insert(extension_id.clone());                            }                        }                        registry.update(cx, |registry, cx| {                            registry.sync_installed_llm_extensions(new_ids, cx);                        });                    }                    _ => {}                }            }        })        .detach();         // Initialize with currently installed extensions        registry.update(cx, |registry, cx| {            let mut initial_ids = HashSet::default();            for (extension_id, entry) in extension_store.read(cx).installed_extensions() {                if !entry.manifest.language_model_providers.is_empty() {                    initial_ids.insert(extension_id.clone());                }            }            registry.sync_installed_llm_extensions(initial_ids, cx);        });    }     let mut openai_compatible_providers = AllLanguageModelSettings::get_global(cx)        .openai_compatible        .keys()        .cloned()        .collect::<HashSet<_>>();     registry.update(cx, |registry, cx| {        register_openai_compatible_providers(            registry,            &HashSet::default(),            &openai_compatible_providers,            client.clone(),            credentials_provider.clone(),            cx,        );    });     let registry = registry.downgrade();    cx.observe_global::<SettingsStore>(move |cx| {        let Some(registry) = registry.upgrade() else {            return;        };        let openai_compatible_providers_new = AllLanguageModelSettings::get_global(cx)            .openai_compatible            .keys()            .cloned()            .collect::<HashSet<_>>();        if openai_compatible_providers_new != openai_compatible_providers {            registry.update(cx, |registry, cx| {                register_openai_compatible_providers(                    registry,                    &openai_compatible_providers,                    &openai_compatible_providers_new,                    client.clone(),                    credentials_provider.clone(),                    cx,                );            });            openai_compatible_providers = openai_compatible_providers_new;        }    })    .detach();} /// Recomputes and sets the [`LanguageModelRegistry`]'s environment fallback/// model based on currently authenticated providers.////// Prefers the Zed cloud provider so that, once the user is signed in, we/// always pick a Zed-hosted model over models from other authenticated/// providers in the environment. If the Zed cloud provider is authenticated/// but hasn't finished loading its models yet, we don't fall back to another/// provider to avoid flickering between providers during sign in.pub fn update_environment_fallback_model(cx: &mut App) {    let registry = LanguageModelRegistry::global(cx);    let fallback_model = {        let registry = registry.read(cx);        let cloud_provider = registry.provider(&ZED_CLOUD_PROVIDER_ID);        if cloud_provider            .as_ref()            .is_some_and(|provider| provider.is_authenticated(cx))        {            cloud_provider.and_then(|provider| {                let model = provider                    .default_model(cx)                    .or_else(|| provider.recommended_models(cx).first().cloned())?;                Some(ConfiguredModel { provider, model })            })        } else {            registry                .providers()                .iter()                .filter(|provider| provider.is_authenticated(cx))                .find_map(|provider| {                    let model = provider                        .default_model(cx)                        .or_else(|| provider.recommended_models(cx).first().cloned())?;                    Some(ConfiguredModel {                        provider: provider.clone(),                        model,                    })                })        }    };    registry.update(cx, |registry, cx| {        registry.set_environment_fallback_model(fallback_model, cx);    });} fn register_openai_compatible_providers(    registry: &mut LanguageModelRegistry,    old: &HashSet<Arc<str>>,    new: &HashSet<Arc<str>>,    client: Arc<Client>,    credentials_provider: Arc<dyn CredentialsProvider>,    cx: &mut Context<LanguageModelRegistry>,) {    for provider_id in old {        if !new.contains(provider_id) {            registry.unregister_provider(LanguageModelProviderId::from(provider_id.clone()), cx);        }    }     for provider_id in new {        if !old.contains(provider_id) {            registry.register_provider(                Arc::new(OpenAiCompatibleLanguageModelProvider::new(                    provider_id.clone(),                    client.http_client(),                    credentials_provider.clone(),                    cx,                )),                cx,            );        }    }} fn register_language_model_providers(    registry: &mut LanguageModelRegistry,    user_store: Entity<UserStore>,    client: Arc<Client>,    credentials_provider: Arc<dyn CredentialsProvider>,    cx: &mut Context<LanguageModelRegistry>,) {    registry.register_provider(        Arc::new(CloudLanguageModelProvider::new(            user_store,            client.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(AnthropicLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(OpenAiLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(OllamaLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(LmStudioLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(DeepSeekLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(GoogleLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        MistralLanguageModelProvider::global(            client.http_client(),            credentials_provider.clone(),            cx,        ),        cx,    );    registry.register_provider(        Arc::new(BedrockLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(OpenRouterLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(VercelAiGatewayLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(XAiLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(        Arc::new(OpenCodeLanguageModelProvider::new(            client.http_client(),            credentials_provider.clone(),            cx,        )),        cx,    );    registry.register_provider(Arc::new(CopilotChatLanguageModelProvider::new(cx)), cx);    registry.register_provider(        Arc::new(OpenAiSubscribedProvider::new(            client.http_client(),            credentials_provider,            cx,        )),        cx,    );}