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llmx/codex-rs/tui/src/app_event.rs

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Rust
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use codex_core::protocol::Event;
use crossterm::event::KeyEvent;
use crate::slash_command::SlashCommand;
feat: support the chat completions API in the Rust CLI (#862) This is a substantial PR to add support for the chat completions API, which in turn makes it possible to use non-OpenAI model providers (just like in the TypeScript CLI): * It moves a number of structs from `client.rs` to `client_common.rs` so they can be shared. * It introduces support for the chat completions API in `chat_completions.rs`. * It updates `ModelProviderInfo` so that `env_key` is `Option<String>` instead of `String` (for e.g., ollama) and adds a `wire_api` field * It updates `client.rs` to choose between `stream_responses()` and `stream_chat_completions()` based on the `wire_api` for the `ModelProviderInfo` * It updates the `exec` and TUI CLIs to no longer fail if the `OPENAI_API_KEY` environment variable is not set * It updates the TUI so that `EventMsg::Error` is displayed more prominently when it occurs, particularly now that it is important to alert users to the `CodexErr::EnvVar` variant. * `CodexErr::EnvVar` was updated to include an optional `instructions` field so we can preserve the behavior where we direct users to https://platform.openai.com if `OPENAI_API_KEY` is not set. * Cleaned up the "welcome message" in the TUI to ensure the model provider is displayed. * Updated the docs in `codex-rs/README.md`. To exercise the chat completions API from OpenAI models, I added the following to my `config.toml`: ```toml model = "gpt-4o" model_provider = "openai-chat-completions" [model_providers.openai-chat-completions] name = "OpenAI using Chat Completions" base_url = "https://api.openai.com/v1" env_key = "OPENAI_API_KEY" wire_api = "chat" ``` Though to test a non-OpenAI provider, I installed ollama with mistral locally on my Mac because ChatGPT said that would be a good match for my hardware: ```shell brew install ollama ollama serve ollama pull mistral ``` Then I added the following to my `~/.codex/config.toml`: ```toml model = "mistral" model_provider = "ollama" ``` Note this code could certainly use more test coverage, but I want to get this in so folks can start playing with it. For reference, I believe https://github.com/openai/codex/pull/247 was roughly the comparable PR on the TypeScript side.
2025-05-08 21:46:06 -07:00
#[allow(clippy::large_enum_variant)]
pub(crate) enum AppEvent {
CodexEvent(Event),
Redraw,
KeyEvent(KeyEvent),
/// Scroll event with a value representing the "scroll delta" as the net
/// scroll up/down events within a short time window.
Scroll(i32),
/// Request to exit the application gracefully.
ExitRequest,
/// Forward an `Op` to the Agent. Using an `AppEvent` for this avoids
/// bubbling channels through layers of widgets.
CodexOp(codex_core::protocol::Op),
/// Latest formatted log line emitted by `tracing`.
LatestLog(String),
/// Dispatch a recognized slash command from the UI (composer) to the app
/// layer so it can be handled centrally.
DispatchCommand(SlashCommand),
}