openai finally works, respect embedding precedence

src/services/llm/embeddings/storage.ts

@@ -150,18 +150,23 @@ export async function findSimilarNotes(
             providerId: string;
             modelId: string;
             count: number;
+            dimension: number;
         }
 
-        // Get all available embedding providers and models
+        // Get all available embedding providers and models with dimensions
         const availableEmbeddings = await sql.getRows(`
-            SELECT DISTINCT providerId, modelId, COUNT(*) as count
+            SELECT DISTINCT providerId, modelId, COUNT(*) as count, dimension
             FROM note_embeddings
             GROUP BY providerId, modelId
             ORDER BY count DESC`
         ) as EmbeddingMetadata[];
 
         if (availableEmbeddings.length > 0) {
-            log.info(`Available embeddings: ${JSON.stringify(availableEmbeddings)}`);
+            log.info(`Available embeddings: ${JSON.stringify(availableEmbeddings.map(e => ({
+                providerId: e.providerId,
+                modelId: e.modelId,
+                count: e.count
+            })))}`);
 
             // Import the AIServiceManager to get provider precedence
             const { default: aiManager } = await import('../ai_service_manager.js');
@@ -210,10 +215,13 @@ export async function findSimilarNotes(
                 const providerEmbeddings = availableEmbeddings.filter(e => e.providerId === provider);
 
                 if (providerEmbeddings.length > 0) {
-                    // Use the model with the most embeddings
+                    // Find models that match the current embedding's dimensions
-                    const bestModel = providerEmbeddings.sort((a, b) => b.count - a.count)[0];
+                    const dimensionMatchingModels = providerEmbeddings.filter(e => e.dimension === embedding.length);
 
-                    log.info(`Trying fallback provider: ${provider}, model: ${bestModel.modelId}`);
+                    // If we have models with matching dimensions, use the one with most embeddings
+                    if (dimensionMatchingModels.length > 0) {
+                        const bestModel = dimensionMatchingModels.sort((a, b) => b.count - a.count)[0];
+                        log.info(`Found fallback provider with matching dimensions (${embedding.length}): ${provider}, model: ${bestModel.modelId}`);
 
                         // Recursive call with the new provider/model, but disable further fallbacks
                         return findSimilarNotes(
@@ -224,10 +232,64 @@ export async function findSimilarNotes(
                             threshold,
                             false // Prevent infinite recursion
                         );
+                    } else {
+                        // We need to regenerate embeddings with the new provider
+                        log.info(`No models with matching dimensions found for ${provider}. Available models: ${JSON.stringify(
+                            providerEmbeddings.map(e => ({ model: e.modelId, dimension: e.dimension }))
+                        )}`);
+
+                        try {
+                            // Import provider manager to get a provider instance
+                            const { default: providerManager } = await import('./providers.js');
+                            const providerInstance = providerManager.getEmbeddingProvider(provider);
+
+                            if (providerInstance) {
+                                // Use the model with the most embeddings
+                                const bestModel = providerEmbeddings.sort((a, b) => b.count - a.count)[0];
+                                // Configure the model by setting it in the config
+                                try {
+                                    // Access the config safely through the getConfig method
+                                    const config = providerInstance.getConfig();
+                                    config.model = bestModel.modelId;
+
+                                    log.info(`Trying to convert query to ${provider}/${bestModel.modelId} embedding format (dimension: ${bestModel.dimension})`);
+
+                                    // Get the original query from the embedding cache if possible, or use a placeholder
+                                    // This is a hack - ideally we'd pass the query text through the whole chain
+                                    const originalQuery = "query"; // This is a placeholder, we'd need the original query text
+
+                                    // Generate a new embedding with the fallback provider
+                                    const newEmbedding = await providerInstance.generateEmbeddings(originalQuery);
+
+                                    log.info(`Successfully generated new embedding with provider ${provider}/${bestModel.modelId} (dimension: ${newEmbedding.length})`);
+
+                                    // Now try finding similar notes with the new embedding
+                                    return findSimilarNotes(
+                                        newEmbedding,
+                                        provider,
+                                        bestModel.modelId,
+                                        limit,
+                                        threshold,
+                                        false // Prevent infinite recursion
+                                    );
+                                } catch (configErr: any) {
+                                    log.error(`Error configuring provider ${provider}: ${configErr.message}`);
+                                }
+                            }
+                        } catch (err: any) {
+                            log.error(`Error converting embedding format: ${err.message}`);
+                        }
+                    }
                 }
             }
 
-            log.info(`No suitable fallback providers found. Available embeddings: ${JSON.stringify(availableEmbeddings)}`);
+            log.error(`No suitable fallback providers found with compatible dimensions. Current embedding dimension: ${embedding.length}`);
+            log.info(`Available embeddings: ${JSON.stringify(availableEmbeddings.map(e => ({
+                providerId: e.providerId,
+                modelId: e.modelId,
+                dimension: e.dimension,
+                count: e.count
+            })))}`);
         } else {
             log.info(`No embeddings found in the database at all. You need to generate embeddings first.`);
         }
@@ -240,14 +302,27 @@ export async function findSimilarNotes(
     }
 
     // Calculate similarity for each embedding
-    const similarities = rows.map(row => {
+    const similarities = [];
+    for (const row of rows) {
         const rowData = row as any;
         const rowEmbedding = bufferToEmbedding(rowData.embedding, rowData.dimension);
-        return {
+
+        // Check if dimensions match before calculating similarity
+        if (rowEmbedding.length !== embedding.length) {
+            log.info(`Skipping embedding ${rowData.embedId} - dimension mismatch: ${rowEmbedding.length} vs ${embedding.length}`);
+            continue;
+        }
+
+        try {
+            const similarity = cosineSimilarity(embedding, rowEmbedding);
+            similarities.push({
                 noteId: rowData.noteId,
-            similarity: cosineSimilarity(embedding, rowEmbedding)
+                similarity
-        };
             });
+        } catch (err: any) {
+            log.error(`Error calculating similarity for note ${rowData.noteId}: ${err.message}`);
+        }
+    }
 
     // Filter by threshold and sort by similarity (highest first)
     const results = similarities

src/services/llm/index_service.ts

@@ -490,16 +490,61 @@ class IndexService {
         }
 
         try {
+            // Get all enabled embedding providers
             const providers = await providerManager.getEnabledEmbeddingProviders();
             if (!providers || providers.length === 0) {
                 throw new Error("No embedding providers available");
             }
 
-            // Use the first enabled provider
+            // Get the embedding provider precedence
-            const provider = providers[0];
+            const options = (await import('../options.js')).default;
+            let preferredProviders: string[] = [];
+
+            const embeddingPrecedence = await options.getOption('embeddingProviderPrecedence');
+            let provider;
+
+            if (embeddingPrecedence) {
+                // Parse the precedence string
+                if (embeddingPrecedence.startsWith('[') && embeddingPrecedence.endsWith(']')) {
+                    preferredProviders = JSON.parse(embeddingPrecedence);
+                } else if (typeof embeddingPrecedence === 'string') {
+                    if (embeddingPrecedence.includes(',')) {
+                        preferredProviders = embeddingPrecedence.split(',').map(p => p.trim());
+                    } else {
+                        preferredProviders = [embeddingPrecedence];
+                    }
+                }
+
+                // Find first enabled provider by precedence order
+                for (const providerName of preferredProviders) {
+                    const matchedProvider = providers.find(p => p.name === providerName);
+                    if (matchedProvider) {
+                        provider = matchedProvider;
+                        break;
+                    }
+                }
+
+                // If no match found, use first available
+                if (!provider && providers.length > 0) {
+                    provider = providers[0];
+                }
+            } else {
+                // Default to first available provider
+                provider = providers[0];
+            }
+
+            if (!provider) {
+                throw new Error("No suitable embedding provider found");
+            }
+
+            log.info(`Searching with embedding provider: ${provider.name}, model: ${provider.getConfig().model}`);
 
             // Generate embedding for the query
             const embedding = await provider.generateEmbeddings(query);
+            log.info(`Generated embedding for query: "${query}" (${embedding.length} dimensions)`);
+
+            // Get Note IDs to search, optionally filtered by branch
+            let similarNotes = [];
 
             // Check if we need to restrict search to a specific branch
             if (contextNoteId) {
@@ -525,7 +570,6 @@ class IndexService {
                 collectNoteIds(contextNoteId);
 
                 // Get embeddings for all notes in the branch
-                const similarNotes = [];
                 const config = provider.getConfig();
 
                 for (const noteId of branchNoteIds) {
@@ -557,7 +601,7 @@ class IndexService {
             } else {
                 // Search across all notes
                 const config = provider.getConfig();
-                const similarNotes = await vectorStore.findSimilarNotes(
+                similarNotes = await vectorStore.findSimilarNotes(
                     embedding,
                     provider.name,
                     config.model,