debug completion

lua/gemini/completion.lua

@@ -170,20 +170,30 @@ function M.trigger_completion()
         -- Add up to 10 previous lines for context
         local start_line = math.max(1, line - 10)
         for i = start_line, line - 1 do
+            if lines[i] and #lines[i] > 0 then
                 table.insert(context, lines[i])
             end
+        end
         
         -- Add current line
+        if current_line and #current_line > 0 then
             table.insert(context, current_line)
+        end
         
         -- Add up to 10 lines after current line
         local end_line = math.min(#lines, line + 10)
         for i = line + 1, end_line do
+            if lines[i] and #lines[i] > 0 then
                 table.insert(context, lines[i])
             end
+        end
         
-        -- Combine all lines
+        -- Combine all lines and validate
         local full_context = table.concat(context, "\n")
+        if #full_context == 0 then
+            debug_print("Empty context, skipping completion request")
+            return
+        end
         
         -- Construct prompt for Gemini
         local prompt = string.format(
@@ -191,6 +201,12 @@ function M.trigger_completion()
             full_context
         )
         
+        -- Validate prompt before sending
+        if #prompt == 0 then
+            debug_print("Empty prompt, skipping completion request")
+            return
+        end
+        
         -- Get completion from Gemini
         api.get_response(prompt, nil, function(response, error)
             if error then 
@@ -198,7 +214,7 @@ function M.trigger_completion()
                 return 
             end
             
-            if type(response) == "string" then
+            if type(response) == "string" and #response > 0 then
                 -- Cache the response
                 current_suggestion.cache[cache_key] = response