1use crate::error::ApiError;
2use crate::providers::anthropic::{self, AuthSource, AnthropicClient};
3use crate::providers::openai_compat::{self, OpenAiCompatClient, OpenAiCompatConfig};
4use crate::providers::{self, Provider, ProviderKind};
5use crate::types::{MessageRequest, MessageResponse, StreamEvent};
6
7async fn send_via_provider<P: Provider>(
8 provider: &P,
9 request: &MessageRequest,
10) -> Result<MessageResponse, ApiError> {
11 provider.send_message(request).await
12}
13
14async fn stream_via_provider<P: Provider>(
15 provider: &P,
16 request: &MessageRequest,
17) -> Result<P::Stream, ApiError> {
18 provider.stream_message(request).await
19}
20
21#[derive(Debug, Clone)]
22pub enum ProviderClient {
23 Anthropic(AnthropicClient),
24 Xai(OpenAiCompatClient),
25 OpenAi(OpenAiCompatClient),
26 Gemini(OpenAiCompatClient),
27 OpenRouter(OpenAiCompatClient),
28}
29
30impl ProviderClient {
31 pub fn from_model(model: &str) -> Result<Self, ApiError> {
32 Self::from_model_with_default_auth(model, None)
33 }
34
35 pub fn from_model_with_default_auth(
36 model: &str,
37 default_auth: Option<AuthSource>,
38 ) -> Result<Self, ApiError> {
39 let resolved_model = providers::resolve_model_alias(model);
40 match providers::detect_provider_kind(&resolved_model) {
41 ProviderKind::Anthropic => Ok(Self::Anthropic(match default_auth {
42 Some(auth) => AnthropicClient::from_auth(auth),
43 None => AnthropicClient::from_env()?,
44 })),
45 ProviderKind::Xai => Ok(Self::Xai(OpenAiCompatClient::from_env(
46 OpenAiCompatConfig::xai(),
47 )?)),
48 ProviderKind::OpenAi => Ok(Self::OpenAi(OpenAiCompatClient::from_env(
49 OpenAiCompatConfig::openai(),
50 )?)),
51 ProviderKind::Gemini => Ok(Self::Gemini(OpenAiCompatClient::from_env(
52 OpenAiCompatConfig::gemini(),
53 )?)),
54 ProviderKind::OpenRouter => Ok(Self::OpenRouter(OpenAiCompatClient::from_env(
55 OpenAiCompatConfig::openrouter(),
56 )?)),
57 }
58 }
59
60 #[must_use]
61 pub const fn provider_kind(&self) -> ProviderKind {
62 match self {
63 Self::Anthropic(_) => ProviderKind::Anthropic,
64 Self::Xai(_) => ProviderKind::Xai,
65 Self::OpenAi(_) => ProviderKind::OpenAi,
66 Self::Gemini(_) => ProviderKind::Gemini,
67 Self::OpenRouter(_) => ProviderKind::OpenRouter,
68 }
69 }
70
71 pub async fn send_message(
72 &self,
73 request: &MessageRequest,
74 ) -> Result<MessageResponse, ApiError> {
75 match self {
76 Self::Anthropic(client) => send_via_provider(client, request).await,
77 Self::Xai(client) | Self::OpenAi(client) | Self::Gemini(client) | Self::OpenRouter(client) => {
78 send_via_provider(client, request).await
79 }
80 }
81 }
82
83 pub async fn stream_message(
84 &self,
85 request: &MessageRequest,
86 ) -> Result<MessageStream, ApiError> {
87 match self {
88 Self::Anthropic(client) => stream_via_provider(client, request)
89 .await
90 .map(MessageStream::Anthropic),
91 Self::Xai(client) | Self::OpenAi(client) | Self::Gemini(client) | Self::OpenRouter(client) => {
92 stream_via_provider(client, request)
93 .await
94 .map(MessageStream::OpenAiCompat)
95 }
96 }
97 }
98}
99
100#[derive(Debug)]
101pub enum MessageStream {
102 Anthropic(anthropic::MessageStream),
103 OpenAiCompat(openai_compat::MessageStream),
104}
105
106impl MessageStream {
107 #[must_use]
108 pub fn request_id(&self) -> Option<&str> {
109 match self {
110 Self::Anthropic(stream) => stream.request_id(),
111 Self::OpenAiCompat(stream) => stream.request_id(),
112 }
113 }
114
115 pub async fn next_event(&mut self) -> Result<Option<StreamEvent>, ApiError> {
116 match self {
117 Self::Anthropic(stream) => stream.next_event().await,
118 Self::OpenAiCompat(stream) => stream.next_event().await,
119 }
120 }
121}
122
123pub use anthropic::{
124 oauth_token_is_expired, resolve_saved_oauth_token, resolve_startup_auth_source, OAuthTokenSet,
125};
126#[must_use]
127pub fn read_base_url() -> String {
128 anthropic::read_base_url()
129}
130
131#[must_use]
132pub fn read_xai_base_url() -> String {
133 openai_compat::read_base_url(OpenAiCompatConfig::xai())
134}
135
136#[cfg(test)]
137mod tests {
138 use crate::providers::{detect_provider_kind, resolve_model_alias, ProviderKind};
139
140 #[test]
141 fn resolves_existing_and_grok_aliases() {
142 assert_eq!(resolve_model_alias("opus"), "claude-opus-4-6");
143 assert_eq!(resolve_model_alias("grok"), "grok-3");
144 assert_eq!(resolve_model_alias("grok-mini"), "grok-3-mini");
145 }
146
147 #[test]
148 fn provider_detection_prefers_model_family() {
149 assert_eq!(detect_provider_kind("grok-3"), ProviderKind::Xai);
150 assert_eq!(
151 detect_provider_kind("claude-sonnet-4-6"),
152 ProviderKind::Anthropic
153 );
154 }
155}