feat: Add WSL support, fix broken API calls (generate-chat, summarize, faq, etc.) and JSON parsing fix.

README.md

@@ -1,4 +1,4 @@
-# nlm - NotebookLM CLI Tool 📚
+# nlm - NotebookLM CLI Tool 📚 
 
 `nlm` is a command-line interface for Google's NotebookLM, allowing you to manage notebooks, sources, and audio overviews from your terminal.
 

docs/WSL.md

@@ -0,0 +1,146 @@
+# WSL Setup Guide for nlm
+
+This guide explains how to set up `nlm` (NotebookLM CLI) on Windows Subsystem for Linux (WSL).
+
+## The Problem
+
+Chrome/Chromium on Linux encrypts cookies using the system keyring. When `nlm` copies the browser profile to a temporary directory, the encryption keys are lost and authentication fails with "redirected to authentication page - not logged in".
+
+## Solution
+
+Use the `NLM_USE_ORIGINAL_PROFILE=1` environment variable to make `nlm` use the original profile directory instead of copying it.
+
+## Prerequisites
+
+- WSL2 installed on Windows
+- Go 1.21+ installed in WSL
+
+## Installation Steps
+
+### 1. Install Chromium in WSL
+
+```bash
+# Ubuntu/Debian
+sudo apt update
+sudo apt install chromium-browser
+
+# Or via snap (if apt version is not available)
+sudo snap install chromium
+```
+
+### 2. Create Profile Symlink
+
+`nlm` looks for Chrome profiles in `~/.config/google-chrome`. Since we're using Chromium, create a symlink:
+
+```bash
+# For apt-installed Chromium
+ln -sf ~/.config/chromium ~/.config/google-chrome
+
+# For snap-installed Chromium
+ln -sf ~/snap/chromium/common/chromium ~/.config/google-chrome
+```
+
+### 3. Initial Browser Setup
+
+Launch Chromium with basic password storage (to avoid keyring prompts):
+
+```bash
+chromium --password-store=basic
+```
+
+Then:
+1. Navigate to https://notebooklm.google.com
+2. Sign in with your Google account
+3. Close the browser
+
+### 4. Install nlm
+
+```bash
+go install github.com/tmc/nlm/cmd/nlm@latest
+```
+
+### 5. Authenticate nlm
+
+Run the authentication with the original profile flag:
+
+```bash
+NLM_USE_ORIGINAL_PROFILE=1 ~/go/bin/nlm auth -debug
+```
+
+You should see:
+```
+Using original profile directory: /home/username/.config/google-chrome
+...
+Authentication successful!
+```
+
+### 6. Verify Installation
+
+```bash
+# List your notebooks
+~/go/bin/nlm list
+
+# List sources in a notebook
+~/go/bin/nlm sources <notebook-id>
+```
+
+## Usage
+
+Always use `NLM_USE_ORIGINAL_PROFILE=1` when running `nlm` commands in WSL:
+
+```bash
+export NLM_USE_ORIGINAL_PROFILE=1
+nlm list
+nlm generate-chat <notebook-id> "Your question here"
+```
+
+Or add to your `.bashrc`:
+
+```bash
+echo 'export NLM_USE_ORIGINAL_PROFILE=1' >> ~/.bashrc
+source ~/.bashrc
+```
+
+## Troubleshooting
+
+### "no valid profiles found"
+
+Make sure the symlink exists:
+```bash
+ls -la ~/.config/google-chrome
+```
+
+Should point to your Chromium profile directory.
+
+### "redirected to authentication page"
+
+1. Make sure you're using `NLM_USE_ORIGINAL_PROFILE=1`
+2. Re-login to NotebookLM in Chromium manually
+3. Run `nlm auth -debug` again
+
+### Chrome process conflicts
+
+If authentication fails, close any running Chromium processes:
+```bash
+pkill -f chromium
+```
+
+Then try again.
+
+## How It Works
+
+The `NLM_USE_ORIGINAL_PROFILE` environment variable tells `nlm` to:
+
+1. **Without flag (default)**: Copy browser profile to a temp directory, losing encryption keys
+2. **With flag=1**: Use the original profile directory directly, preserving cookie encryption
+
+This is implemented in `internal/auth/auth.go` in both `tryMultipleProfiles()` and `GetAuth()` functions.
+
+## Security Note
+
+When using `NLM_USE_ORIGINAL_PROFILE=1`, `nlm` has access to your actual browser profile. This is necessary for authentication but means:
+
+- Close other Chromium windows before running `nlm` to avoid profile lock conflicts
+- The browser automation has access to your real cookies and session data
+
+This is the same level of access as your regular browser session.

gen/method/LabsTailwindOrchestrationService_ActOnSources_encoder.go

@@ -2,21 +2,44 @@ package method
 
 import (
 	notebooklmv1alpha1 "github.com/tmc/nlm/gen/notebooklm/v1alpha1"
-	"github.com/tmc/nlm/internal/rpc/argbuilder"
 )
 
 // GENERATION_BEHAVIOR: append
 
 // EncodeActOnSourcesArgs encodes arguments for LabsTailwindOrchestrationService.ActOnSources
 // RPC ID: yyryJe
-// Argument format: [%project_id%, %action%, %source_ids%]
+// Updated format based on actual browser API calls (November 2025)
+// Format: [[[[source_ids]]],null,null,null,null,[action,[[context]],extra],null,[2,null,[1]]]
 func EncodeActOnSourcesArgs(req *notebooklmv1alpha1.ActOnSourcesRequest) []interface{} {
-	// Using generalized argument encoder
-	args, err := argbuilder.EncodeRPCArgs(req, "[%project_id%, %action%, %source_ids%]")
-	if err != nil {
-		// Log error and return empty args as fallback
-		// In production, this should be handled better
-		return []interface{}{}
+	// Build nested source IDs array
+	// Browser format in f.req args: [[[source_id]]] (3 levels in position 0)
+	// Because the whole args array adds 1 level, position 0 needs 3 levels
+	var sourceIDsInner []interface{}
+	for _, sid := range req.GetSourceIds() {
+		sourceIDsInner = append(sourceIDsInner, sid)
 	}
+	// sourceIDsInner = [sid] - 1 level
+	// Wrap 2 more times: [[[sid]]]
+	sourceIDsNested := []interface{}{[]interface{}{sourceIDsInner}}
+
+	// Build action info: [action, [["[CONTEXT]", ""]], ""]
+	actionInfo := []interface{}{
+		req.GetAction(),
+		[]interface{}{[]interface{}{"[CONTEXT]", ""}},
+		"",
+	}
+
+	// Build the full argument array
+	args := []interface{}{
+		sourceIDsNested, // Position 0: [[[[source_ids]]]]
+		nil,             // Position 1
+		nil,             // Position 2
+		nil,             // Position 3
+		nil,             // Position 4
+		actionInfo,      // Position 5: [action, [[context]], extra]
+		nil,             // Position 6
+		[]interface{}{2, nil, []interface{}{1}}, // Position 7: metadata
+	}
+
 	return args
 }

gen/method/LabsTailwindOrchestrationService_GenerateFreeFormStreamed_encoder.go

@@ -2,39 +2,35 @@ package method
 
 import (
 	notebooklmv1alpha1 "github.com/tmc/nlm/gen/notebooklm/v1alpha1"
-	"github.com/tmc/nlm/internal/rpc/argbuilder"
 )
 
 // GENERATION_BEHAVIOR: append
 
 // EncodeGenerateFreeFormStreamedArgs encodes arguments for LabsTailwindOrchestrationService.GenerateFreeFormStreamed
 // RPC ID: BD
-// Argument format: [[%all_sources%], %prompt%, null, [2]] when sources present
-// Fallback format: [%project_id%, %prompt%] when no sources
+// Updated format based on browser API calls pattern (November 2025)
+// Format similar to ActOnSources: [[[source_ids]],prompt,null,null,null,null,null,[2,null,[1]]]
 func EncodeGenerateFreeFormStreamedArgs(req *notebooklmv1alpha1.GenerateFreeFormStreamedRequest) []interface{} {
-	// If sources are provided, use the gRPC format with sources
-	if len(req.SourceIds) > 0 {
-		// Build source array
-		sourceArray := make([]interface{}, len(req.SourceIds))
-		for i, sourceId := range req.SourceIds {
-			sourceArray[i] = []interface{}{sourceId}
-		}
-
-		// Use gRPC format: [[%all_sources%], %prompt%, null, [2]]
-		return []interface{}{
-			[]interface{}{sourceArray},
-			req.Prompt,
-			nil,
-			[]interface{}{2},
-		}
+	// Build source IDs array with 2 levels of nesting
+	// Final format in f.req: [[[source_id]]] (3 levels after JSON serialization adds 1)
+	var sourceIDsInner []interface{}
+	for _, sid := range req.GetSourceIds() {
+		sourceIDsInner = append(sourceIDsInner, sid)
 	}
+	// Wrap 1 time: [[sid]]
+	sourceIDsNested := []interface{}{sourceIDsInner}
 
-	// Fallback to old format without sources
-	args, err := argbuilder.EncodeRPCArgs(req, "[%project_id%, %prompt%]")
-	if err != nil {
-		// Log error and return empty args as fallback
-		// In production, this should be handled better
-		return []interface{}{}
+	// Build the full argument array
+	args := []interface{}{
+		sourceIDsNested,  // Position 0: [[source_ids]]
+		req.GetPrompt(),  // Position 1: prompt text
+		nil,              // Position 2
+		nil,              // Position 3
+		nil,              // Position 4
+		nil,              // Position 5
+		nil,              // Position 6
+		[]interface{}{2, nil, []interface{}{1}}, // Position 7: metadata
 	}
+
 	return args
 }