Merge pull request #1912 from code-yeongyu/fix/1694-fallback-wiring

fix: wire fallback availability into runtime export path (#1694)

src/shared/index.ts

@@ -41,6 +41,7 @@ export type {
   ModelResolutionResult,
 } from "./model-resolution-types"
 export * from "./model-availability"
+export * from "./fallback-model-availability"
 export * from "./connected-providers-cache"
 export * from "./session-utils"
 export * from "./tmux"

src/shared/model-availability.ts

@@ -283,71 +283,6 @@ export async function fetchAvailableModels(
 	return modelSet
 }
 
-export function isAnyFallbackModelAvailable(
-	fallbackChain: Array<{ providers: string[]; model: string }>,
-	availableModels: Set<string>,
-): boolean {
-	// If we have models, check them first
-	if (availableModels.size > 0) {
-		for (const entry of fallbackChain) {
-			const hasAvailableProvider = entry.providers.some((provider) => {
-				return fuzzyMatchModel(entry.model, availableModels, [provider]) !== null
-			})
-			if (hasAvailableProvider) {
-				return true
-			}
-		}
-	}
-
-	// Fallback: check if any provider in the chain is connected
-	// This handles race conditions where availableModels is empty or incomplete
-	// but we know the provider is connected.
-	const connectedProviders = connectedProvidersCache.readConnectedProvidersCache()
-	if (connectedProviders) {
-		const connectedSet = new Set(connectedProviders)
-		for (const entry of fallbackChain) {
-			if (entry.providers.some((p) => connectedSet.has(p))) {
-				log("[isAnyFallbackModelAvailable] model not in available set, but provider is connected", {
-					model: entry.model,
-					availableCount: availableModels.size,
-				})
-				return true
-			}
-		}
-	}
-
-	return false
-}
-
-export function isAnyProviderConnected(
-	providers: string[],
-	availableModels: Set<string>,
-): boolean {
-	if (availableModels.size > 0) {
-		const providerSet = new Set(providers)
-		for (const model of availableModels) {
-			const [provider] = model.split("/")
-			if (providerSet.has(provider)) {
-				log("[isAnyProviderConnected] found model from required provider", { provider, model })
-				return true
-			}
-		}
-	}
-
-	const connectedProviders = connectedProvidersCache.readConnectedProvidersCache()
-	if (connectedProviders) {
-		const connectedSet = new Set(connectedProviders)
-		for (const provider of providers) {
-			if (connectedSet.has(provider)) {
-				log("[isAnyProviderConnected] provider connected via cache", { provider })
-				return true
-			}
-		}
-	}
-
-	return false
-}
-
 export function __resetModelCache(): void {}
 
 export function isModelCacheAvailable(): boolean {