const response = await fetch("http://localhost:3000/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "gpt-5.2",
    messages: [
      { role: "user", content: "What is 2+2? Answer in one sentence." },
    ],
    stream: true,
  }),
});

console.log("Status:", response.status);

const reader = response.body.getReader();
const decoder = new TextDecoder();
let buffer = "";
let count = 0;
let fullContent = "";

while (true) {
  const { done, value } = await reader.read();
  if (done) break;

  buffer += decoder.decode(value, { stream: true });
  const lines = buffer.split("\n");
  buffer = lines.pop() || "";

  for (const line of lines) {
    if (line.startsWith("data: ")) {
      count++;
      const data = line.substring(6);
      if (data.trim() !== "[DONE]") {
        try {
          const parsed = JSON.parse(data);
          if (parsed.choices && parsed.choices[0]) {
            const delta = parsed.choices[0].delta;
            if (delta.content) {
              fullContent += delta.content;
            }
          }
          console.log(
            `Chunk ${count}: ${JSON.stringify(parsed).substring(0, 150)}`,
          );
        } catch (e) {
          console.log(`Raw chunk ${count}:`, data.substring(0, 100));
        }
      }
    }
  }
}

console.log("\n=== Full Content ===");
console.log(fullContent);
console.log("===================");