| 1 | "use client"; |
| 2 | |
| 3 | import { createLogger } from "@/lib/observability/logger"; |
| 4 | import { useQuery } from "@tanstack/react-query"; |
| 5 | import { useEffect, useState } from "react"; |
| 6 | |
| 7 | interface ModelInfo { |
| 8 | id: string; |
| 9 | name: string; |
| 10 | provider: "ollama" | "lmstudio"; |
| 11 | } |
| 12 | |
| 13 | const localModelLogger = createLogger("client:local-models"); |
| 14 | const LOCAL_MODELS_API_URL = "/api/presentation/local-models"; |
| 15 | |
| 16 | function mergeModels(...groups: ModelInfo[][]): ModelInfo[] { |
| 17 | const merged: ModelInfo[] = []; |
| 18 | const seen = new Set<string>(); |
| 19 | |
| 20 | for (const group of groups) { |
| 21 | for (const model of group) { |
| 22 | if (seen.has(model.id)) { |
| 23 | continue; |
| 24 | } |
| 25 | |
| 26 | seen.add(model.id); |
| 27 | merged.push(model); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | return merged; |
| 32 | } |
| 33 | |
| 34 | function getSavedLocalModel(): ModelInfo | null { |
| 35 | const selectedModel = getSelectedModel(); |
| 36 | if (!selectedModel?.modelId) { |
| 37 | return null; |
| 38 | } |
| 39 | |
| 40 | if ( |
| 41 | selectedModel.modelProvider !== "ollama" && |
| 42 | selectedModel.modelProvider !== "lmstudio" |
| 43 | ) { |
| 44 | return null; |
| 45 | } |
| 46 | |
| 47 | return { |
| 48 | id: `${selectedModel.modelProvider}-${selectedModel.modelId}`, |
| 49 | name: selectedModel.modelId, |
| 50 | provider: selectedModel.modelProvider, |
| 51 | }; |
| 52 | } |
| 53 | |
| 54 | interface LocalModelsApiResponse { |
| 55 | models?: ModelInfo[]; |
| 56 | } |
| 57 | |
| 58 | async function fetchLocalModels(): Promise<ModelInfo[]> { |
| 59 | try { |
| 60 | const response = await fetch(LOCAL_MODELS_API_URL, { |
| 61 | cache: "no-store", |
| 62 | }); |
| 63 | |
| 64 | if (!response.ok) { |
| 65 | throw new Error(`Local models API responded with ${response.status}`); |
| 66 | } |
| 67 | |
| 68 | const data = (await response.json()) as LocalModelsApiResponse; |
| 69 | const models = Array.isArray(data.models) ? data.models : []; |
| 70 | |
| 71 | localModelLogger.info("Local model discovery completed", { |
| 72 | total: models.length, |
| 73 | }); |
| 74 | |
| 75 | if (models.length === 0) { |
| 76 | localModelLogger.warn( |
| 77 | "No live local models detected; falling back to downloadable Ollama suggestions", |
| 78 | { |
| 79 | downloadableModels: downloadableModels.map((model) => model.name), |
| 80 | }, |
| 81 | ); |
| 82 | } |
| 83 | |
| 84 | return models; |
| 85 | } catch (error) { |
| 86 | localModelLogger.warn("Failed to refresh local models from the server", { |
| 87 | error: error instanceof Error ? error.message : String(error), |
| 88 | }); |
| 89 | return []; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | export const downloadableModels: ModelInfo[] = [ |
| 94 | { |
| 95 | id: "ollama-llama3.1:8b", |
| 96 | name: "llama3.1:8b", |
| 97 | provider: "ollama", |
| 98 | }, |
| 99 | { |
| 100 | id: "ollama-llama3.1:70b", |
| 101 | name: "llama3.1:70b", |
| 102 | provider: "ollama", |
| 103 | }, |
| 104 | { |
| 105 | id: "ollama-llama3.2:3b", |
| 106 | name: "llama3.2:3b", |
| 107 | provider: "ollama", |
| 108 | }, |
| 109 | { |
| 110 | id: "ollama-llama3.2:8b", |
| 111 | name: "llama3.2:8b", |
| 112 | provider: "ollama", |
| 113 | }, |
| 114 | { |
| 115 | id: "ollama-mistral:7b", |
| 116 | name: "mistral:7b", |
| 117 | provider: "ollama", |
| 118 | }, |
| 119 | { |
| 120 | id: "ollama-codellama:7b", |
| 121 | name: "codellama:7b", |
| 122 | provider: "ollama", |
| 123 | }, |
| 124 | { |
| 125 | id: "ollama-qwen2.5:7b", |
| 126 | name: "qwen2.5:7b", |
| 127 | provider: "ollama", |
| 128 | }, |
| 129 | { |
| 130 | id: "ollama-gemma2:9b", |
| 131 | name: "gemma2:9b", |
| 132 | provider: "ollama", |
| 133 | }, |
| 134 | { |
| 135 | id: "ollama-phi3:3.8b", |
| 136 | name: "phi3:3.8b", |
| 137 | provider: "ollama", |
| 138 | }, |
| 139 | { |
| 140 | id: "ollama-neural-chat:7b", |
| 141 | name: "neural-chat:7b", |
| 142 | provider: "ollama", |
| 143 | }, |
| 144 | ]; |
| 145 | |
| 146 | export const fallbackModels: ModelInfo[] = downloadableModels; |
| 147 | |
| 148 | const MODELS_CACHE_KEY = "presentation-models-cache"; |
| 149 | const SELECTED_MODEL_KEY = "presentation-selected-model"; |
| 150 | const CACHE_EXPIRY_KEY = "presentation-models-cache-expiry"; |
| 151 | const CACHE_DURATION = 5 * 60 * 1000; |
| 152 | |
| 153 | function getCachedModels(): ModelInfo[] | null { |
| 154 | if (typeof window === "undefined") { |
| 155 | return null; |
| 156 | } |
| 157 | |
| 158 | try { |
| 159 | const cached = localStorage.getItem(MODELS_CACHE_KEY); |
| 160 | const expiry = localStorage.getItem(CACHE_EXPIRY_KEY); |
| 161 | |
| 162 | if (cached && expiry && Date.now() < parseInt(expiry, 10)) { |
| 163 | return JSON.parse(cached) as ModelInfo[]; |
| 164 | } |
| 165 | |
| 166 | return null; |
| 167 | } catch { |
| 168 | return null; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | function setCachedModels(models: ModelInfo[]): void { |
| 173 | if (typeof window === "undefined") { |
| 174 | return; |
| 175 | } |
| 176 | |
| 177 | try { |
| 178 | localStorage.setItem(MODELS_CACHE_KEY, JSON.stringify(models)); |
| 179 | localStorage.setItem( |
| 180 | CACHE_EXPIRY_KEY, |
| 181 | (Date.now() + CACHE_DURATION).toString(), |
| 182 | ); |
| 183 | } catch { |
| 184 | // Ignore localStorage errors. |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | export function getSelectedModel(): { |
| 189 | modelProvider: string; |
| 190 | modelId: string; |
| 191 | } | null { |
| 192 | if (typeof window === "undefined") { |
| 193 | return null; |
| 194 | } |
| 195 | |
| 196 | try { |
| 197 | const selected = localStorage.getItem(SELECTED_MODEL_KEY); |
| 198 | return selected |
| 199 | ? (JSON.parse(selected) as { modelProvider: string; modelId: string }) |
| 200 | : null; |
| 201 | } catch (error) { |
| 202 | localModelLogger.error( |
| 203 | "Failed to read selected model from localStorage", |
| 204 | error, |
| 205 | ); |
| 206 | return null; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | export function setSelectedModel(modelProvider: string, modelId: string): void { |
| 211 | if (typeof window === "undefined") { |
| 212 | return; |
| 213 | } |
| 214 | |
| 215 | try { |
| 216 | localStorage.setItem( |
| 217 | SELECTED_MODEL_KEY, |
| 218 | JSON.stringify({ modelProvider, modelId }), |
| 219 | ); |
| 220 | } catch (error) { |
| 221 | localModelLogger.error("Failed to save selected model to localStorage", error); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | export function useLocalModels() { |
| 226 | const [isInitialLoad, setIsInitialLoad] = useState(true); |
| 227 | const cachedModels = getCachedModels(); |
| 228 | |
| 229 | const query = useQuery({ |
| 230 | queryKey: ["local-models"], |
| 231 | queryFn: async () => { |
| 232 | localModelLogger.info("Refreshing local model list"); |
| 233 | const freshModels = await fetchLocalModels(); |
| 234 | |
| 235 | if (freshModels.length > 0) { |
| 236 | setCachedModels(freshModels); |
| 237 | return freshModels; |
| 238 | } |
| 239 | |
| 240 | if (cachedModels && cachedModels.length > 0) { |
| 241 | localModelLogger.info( |
| 242 | "Local discovery returned no live models; keeping cached models in place", |
| 243 | { |
| 244 | cachedCount: cachedModels.length, |
| 245 | }, |
| 246 | ); |
| 247 | return cachedModels; |
| 248 | } |
| 249 | |
| 250 | setCachedModels([]); |
| 251 | return []; |
| 252 | }, |
| 253 | staleTime: 5 * 60 * 1000, |
| 254 | retry: 1, |
| 255 | retryDelay: 1000, |
| 256 | initialData: cachedModels || undefined, |
| 257 | select: (data) => { |
| 258 | const savedLocalModel = getSavedLocalModel(); |
| 259 | const localModels = mergeModels( |
| 260 | data, |
| 261 | savedLocalModel ? [savedLocalModel] : [], |
| 262 | ); |
| 263 | |
| 264 | return { |
| 265 | localModels, |
| 266 | downloadableModels, |
| 267 | showDownloadable: downloadableModels.length > 0, |
| 268 | }; |
| 269 | }, |
| 270 | }); |
| 271 | |
| 272 | useEffect(() => { |
| 273 | if (isInitialLoad) { |
| 274 | setIsInitialLoad(false); |
| 275 | } |
| 276 | }, [isInitialLoad]); |
| 277 | |
| 278 | return { |
| 279 | ...query, |
| 280 | isInitialLoad, |
| 281 | }; |
| 282 | } |
| 283 |