add support for think and options parameters

Author: jordibeen

lua/gp/dispatcher.lua

@@ -161,6 +161,41 @@ D.prepare_payload = function(messages, model, provider)
 		return payload
 	end
 
+	if provider == "ollama" then
+		local payload = {
+			model = model.model,
+			stream = true,
+			messages = messages,
+		}
+
+		if model.think ~= nil then
+			payload.think = model.think
+		end
+
+		local options = {}
+		if model.temperature then
+			options.temperature = math.max(0, math.min(2, model.temperature))
+		end
+		if model.top_p then
+			options.top_p = math.max(0, math.min(1, model.top_p))
+		end
+		if model.min_p then
+			options.min_p = math.max(0, math.min(1, model.min_p))
+		end
+		if model.num_ctx then
+			options.num_ctx = model.num_ctx
+		end
+		if model.top_k then
+			options.top_k = model.top_k
+		end
+
+		if next(options) then
+			payload.options = options
+		end
+
+		return payload
+	end
+
 	local output = {
 		model = model.model,
 		stream = true,