| 1 | //! Provider switching: flip between DeepSeek, hosted providers, and self-hosted |
| 2 | //! OpenAI-compatible DeepSeek V4 servers at runtime. |
| 3 | //! |
| 4 | //! `/provider` with no args opens the picker modal (#52). `/provider <name>` |
| 5 | //! keeps the v0.6.6 CLI form for muscle-memory + scripted use. |
| 6 | |
| 7 | use crate::config::{ApiProvider, normalize_model_name}; |
| 8 | use crate::tui::app::{App, AppAction}; |
| 9 | |
| 10 | use super::CommandResult; |
| 11 | |
| 12 | /// Switch or view the current LLM backend. |
| 13 | /// |
| 14 | /// With no args, opens the picker modal. With `<provider> [model]`, performs |
| 15 | /// the switch directly (e.g. `/provider nim flash` lands on |
| 16 | /// `deepseek-ai/deepseek-v4-flash`). The optional model accepts shorthand |
| 17 | /// (`flash`, `pro`, `v4-flash`, `v4-pro`) or any normal DeepSeek model ID. |
| 18 | pub fn provider(app: &mut App, args: Option<&str>) -> CommandResult { |
| 19 | let trimmed = args.map(str::trim).filter(|s| !s.is_empty()); |
| 20 | let Some(args) = trimmed else { |
| 21 | return CommandResult::action(AppAction::OpenProviderPicker); |
| 22 | }; |
| 23 | |
| 24 | let mut parts = args.split_whitespace(); |
| 25 | let name = parts.next().unwrap_or(""); |
| 26 | let model_arg = parts.next(); |
| 27 | |
| 28 | let Some(target) = ApiProvider::parse(name) else { |
| 29 | return CommandResult::error(format!( |
| 30 | "Unknown provider '{name}'. Expected: deepseek, nvidia-nim, openrouter, novita, fireworks, sglang, or vllm." |
| 31 | )); |
| 32 | }; |
| 33 | |
| 34 | let model = match model_arg { |
| 35 | None => None, |
| 36 | Some(raw) => match normalize_model_name(&expand_model_alias(raw)) { |
| 37 | Some(normalized) => Some(normalized), |
| 38 | None => { |
| 39 | return CommandResult::error(format!( |
| 40 | "Invalid model '{raw}'. Try: flash, pro, deepseek-v4-flash, deepseek-v4-pro." |
| 41 | )); |
| 42 | } |
| 43 | }, |
| 44 | }; |
| 45 | |
| 46 | if target == app.api_provider && model.is_none() { |
| 47 | return CommandResult::message(format!("Already on provider: {}", target.as_str())); |
| 48 | } |
| 49 | |
| 50 | CommandResult::action(AppAction::SwitchProvider { |
| 51 | provider: target, |
| 52 | model, |
| 53 | }) |
| 54 | } |
| 55 | |
| 56 | fn expand_model_alias(name: &str) -> String { |
| 57 | match name.trim().to_ascii_lowercase().as_str() { |
| 58 | "pro" | "v4-pro" => "deepseek-v4-pro".to_string(), |
| 59 | "flash" | "v4-flash" => "deepseek-v4-flash".to_string(), |
| 60 | other => other.to_string(), |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | #[cfg(test)] |
| 65 | mod tests { |
| 66 | use super::*; |
| 67 | use crate::config::Config; |
| 68 | use crate::tui::app::TuiOptions; |
| 69 | use std::path::PathBuf; |
| 70 | |
| 71 | fn create_test_app() -> App { |
| 72 | let options = TuiOptions { |
| 73 | model: "deepseek-v4-pro".to_string(), |
| 74 | workspace: PathBuf::from("."), |
| 75 | config_path: None, |
| 76 | config_profile: None, |
| 77 | allow_shell: false, |
| 78 | use_alt_screen: true, |
| 79 | use_mouse_capture: false, |
| 80 | use_bracketed_paste: true, |
| 81 | max_subagents: 1, |
| 82 | skills_dir: PathBuf::from("."), |
| 83 | memory_path: PathBuf::from("memory.md"), |
| 84 | notes_path: PathBuf::from("notes.txt"), |
| 85 | mcp_config_path: PathBuf::from("mcp.json"), |
| 86 | use_memory: false, |
| 87 | start_in_agent_mode: false, |
| 88 | skip_onboarding: true, |
| 89 | yolo: false, |
| 90 | resume_session_id: None, |
| 91 | initial_input: None, |
| 92 | }; |
| 93 | let mut app = App::new(options, &Config::default()); |
| 94 | app.ui_locale = crate::localization::Locale::En; |
| 95 | app.api_provider = crate::config::ApiProvider::Deepseek; |
| 96 | app |
| 97 | } |
| 98 | |
| 99 | #[test] |
| 100 | fn no_args_opens_picker_modal() { |
| 101 | let mut app = create_test_app(); |
| 102 | let result = provider(&mut app, None); |
| 103 | assert!(result.message.is_none()); |
| 104 | assert_eq!(result.action, Some(AppAction::OpenProviderPicker)); |
| 105 | } |
| 106 | |
| 107 | #[test] |
| 108 | fn unknown_provider_returns_error() { |
| 109 | let mut app = create_test_app(); |
| 110 | let result = provider(&mut app, Some("anthropic")); |
| 111 | let msg = result.message.expect("expected error message"); |
| 112 | assert!(msg.contains("Unknown provider")); |
| 113 | assert!(msg.contains("openrouter")); |
| 114 | assert!(msg.contains("novita")); |
| 115 | assert!(result.action.is_none()); |
| 116 | } |
| 117 | |
| 118 | #[test] |
| 119 | fn switch_to_openrouter_emits_action() { |
| 120 | let mut app = create_test_app(); |
| 121 | let result = provider(&mut app, Some("openrouter")); |
| 122 | match result.action { |
| 123 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 124 | assert_eq!(provider, ApiProvider::Openrouter); |
| 125 | assert_eq!(model, None); |
| 126 | } |
| 127 | other => panic!("expected SwitchProvider, got {other:?}"), |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | #[test] |
| 132 | fn switch_to_novita_emits_action() { |
| 133 | let mut app = create_test_app(); |
| 134 | let result = provider(&mut app, Some("novita")); |
| 135 | match result.action { |
| 136 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 137 | assert_eq!(provider, ApiProvider::Novita); |
| 138 | assert_eq!(model, None); |
| 139 | } |
| 140 | other => panic!("expected SwitchProvider, got {other:?}"), |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | #[test] |
| 145 | fn switch_to_fireworks_emits_action() { |
| 146 | let mut app = create_test_app(); |
| 147 | let result = provider(&mut app, Some("fireworks pro")); |
| 148 | match result.action { |
| 149 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 150 | assert_eq!(provider, ApiProvider::Fireworks); |
| 151 | assert_eq!(model.as_deref(), Some("deepseek-v4-pro")); |
| 152 | } |
| 153 | other => panic!("expected SwitchProvider, got {other:?}"), |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | #[test] |
| 158 | fn switch_to_sglang_flash_emits_action() { |
| 159 | let mut app = create_test_app(); |
| 160 | let result = provider(&mut app, Some("sglang flash")); |
| 161 | match result.action { |
| 162 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 163 | assert_eq!(provider, ApiProvider::Sglang); |
| 164 | assert_eq!(model.as_deref(), Some("deepseek-v4-flash")); |
| 165 | } |
| 166 | other => panic!("expected SwitchProvider, got {other:?}"), |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | #[test] |
| 171 | fn switch_to_vllm_flash_emits_action() { |
| 172 | let mut app = create_test_app(); |
| 173 | let result = provider(&mut app, Some("vllm flash")); |
| 174 | match result.action { |
| 175 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 176 | assert_eq!(provider, ApiProvider::Vllm); |
| 177 | assert_eq!(model.as_deref(), Some("deepseek-v4-flash")); |
| 178 | } |
| 179 | other => panic!("expected SwitchProvider, got {other:?}"), |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | #[test] |
| 184 | fn switching_to_active_provider_without_model_is_a_noop() { |
| 185 | let mut app = create_test_app(); |
| 186 | let result = provider(&mut app, Some("deepseek")); |
| 187 | let msg = result.message.expect("expected message"); |
| 188 | assert!(msg.contains("Already on provider")); |
| 189 | assert!(result.action.is_none()); |
| 190 | } |
| 191 | |
| 192 | #[test] |
| 193 | fn switch_to_nim_emits_action_without_model_override() { |
| 194 | let mut app = create_test_app(); |
| 195 | let result = provider(&mut app, Some("nvidia-nim")); |
| 196 | assert!(result.message.is_none()); |
| 197 | match result.action { |
| 198 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 199 | assert_eq!(provider, ApiProvider::NvidiaNim); |
| 200 | assert_eq!(model, None); |
| 201 | } |
| 202 | other => panic!("expected SwitchProvider action, got {other:?}"), |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | #[test] |
| 207 | fn nim_flash_shorthand_emits_action_with_model_override() { |
| 208 | let mut app = create_test_app(); |
| 209 | let result = provider(&mut app, Some("nim flash")); |
| 210 | match result.action { |
| 211 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 212 | assert_eq!(provider, ApiProvider::NvidiaNim); |
| 213 | assert_eq!(model.as_deref(), Some("deepseek-v4-flash")); |
| 214 | } |
| 215 | other => panic!("expected SwitchProvider action, got {other:?}"), |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | #[test] |
| 220 | fn nim_pro_shorthand_emits_action_with_model_override() { |
| 221 | let mut app = create_test_app(); |
| 222 | let result = provider(&mut app, Some("nim pro")); |
| 223 | match result.action { |
| 224 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 225 | assert_eq!(provider, ApiProvider::NvidiaNim); |
| 226 | assert_eq!(model.as_deref(), Some("deepseek-v4-pro")); |
| 227 | } |
| 228 | other => panic!("expected SwitchProvider action, got {other:?}"), |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | #[test] |
| 233 | fn switch_to_active_provider_with_new_model_still_emits_action() { |
| 234 | let mut app = create_test_app(); |
| 235 | let result = provider(&mut app, Some("deepseek flash")); |
| 236 | match result.action { |
| 237 | Some(AppAction::SwitchProvider { provider, model }) => { |
| 238 | assert_eq!(provider, ApiProvider::Deepseek); |
| 239 | assert_eq!(model.as_deref(), Some("deepseek-v4-flash")); |
| 240 | } |
| 241 | other => panic!("expected SwitchProvider action, got {other:?}"), |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | #[test] |
| 246 | fn invalid_model_returns_error() { |
| 247 | let mut app = create_test_app(); |
| 248 | let result = provider(&mut app, Some("nim gpt-4")); |
| 249 | let msg = result.message.expect("expected error message"); |
| 250 | assert!(msg.contains("Invalid model")); |
| 251 | assert!(result.action.is_none()); |
| 252 | } |
| 253 | } |
| 254 |