document.addEventListener("DOMContentLoaded", async () => {
    const output = document.getElementById("output");

    llmToken = await getLLMToken();
    const auth = await loadUserToken();
    if (!auth) {
        handleLogout(auth);
    }
    const userToken = auth.token;
    const url = "http://app-test.wisdompulse.cn/api/v1/llm/ask";
    const question = "请背诵王勃的《滕王阁序》全文，开头是'豫章故郡，洪都新府'这句，并基于这篇文章写一个小故事"
    const body = { llmToken, question };

    fetch(url, {
        method: "POST",
        headers: {
            "Authorization": `${userToken}`,
            "Accept": "text/event-stream",
            "Content-Type": "application/json"
        },
        body: JSON.stringify(body)
    }).then(response => {
        const reader = response.body.getReader();
        const decoder = new TextDecoder("utf-8");
        let buffer = "";

        function read() {
            reader.read().then(({ done, value }) => {
                if (done) {
                    output.textContent += "\n[连接结束]";
                    return;
                }

                buffer += decoder.decode(value, { stream: true });

                // 拆解成 SSE 事件格式：每段以 \n\n 分隔
                const parts = buffer.split('\n\n');
                buffer = parts.pop(); // 留给下一次未完整的部分

                for (const part of parts) {
                    const line = part.trim();
                    if (line.startsWith('data:')) {
                        const jsonStr = line.substring(5).trim();
                        try {
                            const data = JSON.parse(jsonStr);
                            output.textContent += `${data.textResponse || '[无内容]'}`;
                        } catch (e) {
                            output.textContent += `解析失败：${jsonStr}\n`;
                        }
                    }
                }

                read();
            });
        }

        read();
    });
});