feat: handle gpt o1-preview, o1-mini models

Author: qtnx

lua/gp/dispatcher.lua

@@ -165,14 +165,29 @@ D.prepare_payload = function(messages, model, provider)
 		model.model = "gpt-4o-2024-05-13"
 	end
 
-	return {
+	local output = {
 		model = model.model,
 		stream = true,
 		messages = messages,
 		max_tokens = model.max_tokens or 4096,
 		temperature = math.max(0, math.min(2, model.temperature or 1)),
 		top_p = math.max(0, math.min(1, model.top_p or 1)),
 	}
+
+	if provider == "openai" and model.model:sub(1, 2) == "o1" then
+		for i = #messages, 1, -1 do
+			if messages[i].role == "system" then
+				table.remove(messages, i)
+			end
+		end
+		-- remove max_tokens, top_p, temperature for o1 models. https://platform.openai.com/docs/guides/reasoning/beta-limitations
+		output.max_tokens = nil
+		output.temperature = nil
+		output.top_p = nil
+		output.stream = false
+	end
+
+	return output
 end
 
 -- gpt query
@@ -249,6 +264,7 @@ local query = function(buf, provider, payload, handler, on_exit, callback)
 					end
 				end
 
+
 				if content and type(content) == "string" then
 					qt.response = qt.response .. content
 					handler(qid, content)
@@ -282,6 +298,19 @@ local query = function(buf, provider, payload, handler, on_exit, callback)
 				if #buffer > 0 then
 					process_lines(buffer)
 				end
+				local raw_response = qt.raw_response
+				local content = qt.response
+				if qt.provider == 'openai' and content == "" and raw_response:match('choices') and raw_response:match("content") then
+					local response = vim.json.decode(raw_response)
+					if response.choices and response.choices[1] and response.choices[1].message and response.choices[1].message.content then
+						content = response.choices[1].message.content
+					end
+					if content and type(content) == "string" then
+						qt.response = qt.response .. content
+						handler(qid, content)
+					end
+				end
+
 
 				if qt.response == "" then
 					logger.error(qt.provider .. " response is empty: \n" .. vim.inspect(qt.raw_response))
@@ -363,7 +392,8 @@ local query = function(buf, provider, payload, handler, on_exit, callback)
 		}
 	end
 
-	local temp_file = D.query_dir .. "/" .. logger.now() .. "." .. string.format("%x", math.random(0, 0xFFFFFF)) .. ".json"
+	local temp_file = D.query_dir ..
+		"/" .. logger.now() .. "." .. string.format("%x", math.random(0, 0xFFFFFF)) .. ".json"
 	helpers.table_to_file(payload, temp_file)
 
 	local curl_params = vim.deepcopy(D.config.curl_params or {})