refactor(llm): integrate new configuration system for provider management and model selection

apps/server/src/services/llm/config/configuration_helpers.ts

@@ -0,0 +1,130 @@
+import configurationManager from './configuration_manager.js';
+import type {
+    ProviderType,
+    ModelIdentifier,
+    ModelConfig,
+    ProviderPrecedenceConfig,
+    EmbeddingProviderPrecedenceConfig
+} from '../interfaces/configuration_interfaces.js';
+
+/**
+ * Helper functions for accessing AI configuration without string parsing
+ * Use these throughout the codebase instead of parsing strings directly
+ */
+
+/**
+ * Get the ordered list of AI providers
+ */
+export async function getProviderPrecedence(): Promise<ProviderType[]> {
+    const config = await configurationManager.getProviderPrecedence();
+    return config.providers;
+}
+
+/**
+ * Get the default/preferred AI provider
+ */
+export async function getPreferredProvider(): Promise<ProviderType> {
+    const config = await configurationManager.getProviderPrecedence();
+    return config.defaultProvider || config.providers[0];
+}
+
+/**
+ * Get the ordered list of embedding providers
+ */
+export async function getEmbeddingProviderPrecedence(): Promise<string[]> {
+    const config = await configurationManager.getEmbeddingProviderPrecedence();
+    return config.providers;
+}
+
+/**
+ * Get the default embedding provider
+ */
+export async function getPreferredEmbeddingProvider(): Promise<string> {
+    const config = await configurationManager.getEmbeddingProviderPrecedence();
+    return config.defaultProvider || config.providers[0];
+}
+
+/**
+ * Parse a model identifier (handles "provider:model" format)
+ */
+export function parseModelIdentifier(modelString: string): ModelIdentifier {
+    return configurationManager.parseModelIdentifier(modelString);
+}
+
+/**
+ * Create a model configuration from a model string
+ */
+export function createModelConfig(modelString: string, defaultProvider?: ProviderType): ModelConfig {
+    return configurationManager.createModelConfig(modelString, defaultProvider);
+}
+
+/**
+ * Get the default model for a specific provider
+ */
+export async function getDefaultModelForProvider(provider: ProviderType): Promise<string> {
+    const config = await configurationManager.getAIConfig();
+    return config.defaultModels[provider];
+}
+
+/**
+ * Get provider settings for a specific provider
+ */
+export async function getProviderSettings(provider: ProviderType) {
+    const config = await configurationManager.getAIConfig();
+    return config.providerSettings[provider];
+}
+
+/**
+ * Check if AI is enabled
+ */
+export async function isAIEnabled(): Promise<boolean> {
+    const config = await configurationManager.getAIConfig();
+    return config.enabled;
+}
+
+/**
+ * Check if a provider has required configuration
+ */
+export async function isProviderConfigured(provider: ProviderType): Promise<boolean> {
+    const settings = await getProviderSettings(provider);
+
+    switch (provider) {
+        case 'openai':
+            return Boolean((settings as any)?.apiKey);
+        case 'anthropic':
+            return Boolean((settings as any)?.apiKey);
+        case 'ollama':
+            return Boolean((settings as any)?.baseUrl);
+        default:
+            return false;
+    }
+}
+
+/**
+ * Get the first available (configured) provider from the precedence list
+ */
+export async function getFirstAvailableProvider(): Promise<ProviderType | null> {
+    const providers = await getProviderPrecedence();
+
+    for (const provider of providers) {
+        if (await isProviderConfigured(provider)) {
+            return provider;
+        }
+    }
+
+    return null;
+}
+
+/**
+ * Validate the current AI configuration
+ */
+export async function validateConfiguration() {
+    return configurationManager.validateConfig();
+}
+
+/**
+ * Clear cached configuration (use when settings change)
+ */
+export function clearConfigurationCache(): void {
+    configurationManager.clearCache();
+}