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from fastapi import FastAPI, Form, Request,Response
from fastapi.responses import HTMLResponse
from jinja2 import Template
import markdown
import time
from datetime import datetime, timedelta
from apscheduler.schedulers.background import BackgroundScheduler
from agents import DeepResearchAgent, get_llms
import threading
import logging
from queue import Queue
import uuid
lock = threading.Lock()
app = FastAPI()
# 每日最大回复次数
MAX_REPLIES_PER_DAY = 100
# 当日回复次数计数器
reply_count = 0
# 启动时设置计数器重置
last_reset_time = datetime.now()
# HTML模板
html_template = """
<!DOCTYPE html>
<html>
<head>
<title>CoI Agent online demo 😊</title>
<style>
body {
font-family: 'Arial', sans-serif;
background-color: #f4f4f9;
margin: 0;
padding: 0;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
}
.container {
width: 95%;
max-width: 1200px;
background-color: #fff;
padding: 2rem;
border-radius: 10px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
h1 {
font-size: 2rem;
margin-bottom: 1.5rem;
color: #333;
text-align: center;
}
form {
margin-bottom: 1.5rem;
}
.form-group {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 1.5rem;
}
.form-group label {
flex: 0;
font-size: 1 rem; /* 增大字体 */
color: #333;
margin-right: 0.5rem;
background-color: #f0f8ff; /* 气泡背景颜色 */
padding: 0.5rem 1rem; /* 气泡内边距 */
border-radius: 10px; /* 气泡圆角 */
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1); /* 艺术字效果 */
font-family: 'Times new roman', cursive, sans-serif; /* 艺术字体 */
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1); /* 气泡阴影 */
}
.form-group input {
flex: 4;
padding: 0.6rem;
font-size: 1rem;
border: 1px solid #ccc;
border-radius: 5px;
margin-left: 1rem;
}
.form-group button {
flex: 0;
padding: 0.6rem 1rem;
font-size: 1rem;
background-color: #F2A582;
color: #fff;
border: none;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s ease;
margin-left: 1rem;
}
.form-group button:hover {
background-color: #0056b3;
}
.loading,
.time-box,
.counter-box,
.result,
.error {
margin-top: 1.5rem;
}
.loading {
font-size: 1.2rem;
color: #007bff;
animation: fadeIn 0.5s ease-in-out;
text-align: center;
display: none;
}
.time-counter-container {
display: flex;
justify-content: space-between;
}
.time-box,
.counter-box {
display: inline-block;
padding: 0.5rem 1rem;
background-color: #e9ecef;
border-radius: 10px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
font-size: 0.9rem;
margin: 0.5rem;
flex: 1;
text-align: center;
}
.result {
display: flex;
justify-content: space-between;
flex-wrap: wrap;
}
.result .box {
flex: 1;
margin: 0.5rem;
padding: 1rem;
background-color: #e9ecef;
border-radius: 10px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
word-wrap: break-word;
height: 400px;
overflow-y: auto;
font-size: 1rem;
font-family: "Times New Roman", Times, serif;
line-height: 1.5;
}
.error .box {
width: 100%;
padding: 1rem;
background-color: #f8d7da;
color: #721c24;
border-radius: 10px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
word-wrap: break-word;
}
h2 {
font-size: 1.3rem;
margin-bottom: 1rem;
color: #333;
}
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.progress-bar-container {
width: 100%;
background-color: #e9ecef;
border-radius: 10px;
overflow: hidden;
margin-top: 1.5rem;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}
.progress-bar {
height: 20px;
background-color: #727372;
width: 0%;
transition: width 0.1s ease;
}
.example-container {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 1.5rem;
}
.example-label {
flex: 0.7;
font-size: 1 rem;
color: #333;
text-align: center;
margin-right: 0rem;
padding: 0.5rem 0.2rem;
background-color: #f0f8ff;
border-radius: 10px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
font-family: 'Times new roman', cursive, sans-serif;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}
.example-topics {
flex: 6;
display: flex;
justify-content: space-around;
}
.example-topics button {
padding: 0.5rem 1rem;
font-size: 1rem;
background-color: #ffa07a; /* 浅橙色 */
color: #fff;
border: none;
border-radius: 5px;
cursor: pointer;
margin: 0.3rem;
transition: background-color 0.3s ease;
}
.example-topics button:hover {
background-color: #ff4500; /* 深橙色 */
}
</style>
<script>
let startTime = 0;
let intervalId = null;
let progressIntervalId = null;
let maxTime = 180; // 最大时间180秒
function showLoading() {
document.getElementById("loading").style.display = "block";
document.getElementById("submit-btn").disabled = true;
startTime = Date.now();
intervalId = setInterval(updateTime, 100);
progressIntervalId = setInterval(updateProgressBar, 100);
// 隐藏错误消息
const errorBox = document.querySelector(".error");
if (errorBox) {
errorBox.style.display = "none";
}
}
function hideLoading() {
document.getElementById("loading").style.display = "none";
document.getElementById("submit-btn").disabled = false;
if (intervalId) {
clearInterval(intervalId);
intervalId = null;
}
if (progressIntervalId) {
clearInterval(progressIntervalId);
progressIntervalId = null;
}
updateProgressBar(100); // 立即更新进度条至100%
}
function updateTime() {
const now = Date.now();
const elapsed = ((now - startTime) / 1000).toFixed(2);
document.getElementById("time-taken").innerText = `Time Taken: ${elapsed} s`;
}
function updateProgressBar(percentage = null) {
const progressBar = document.getElementById("progress-bar");
if (percentage !== null) {
progressBar.style.width = `${percentage}%`;
} else {
const now = Date.now();
const elapsed = (now - startTime) / 1000;
const progress = Math.min((elapsed / maxTime) * 60, 97);
progressBar.style.width = `${progress}%`;
}
}
function fillTopic(topic) {
document.getElementById("topic").value = topic;
}
</script>
</head>
<body>
<div class="container">
<h1>CoI Agent online demo 😊</h1>
<div class="time-counter-container">
<div id="time-taken" class="time-box">Time Taken: {{ time_taken }} seconds</div>
<div class="counter-box">Today's Replies: {{ reply_count }}/100 </div>
</div>
<div class="progress-bar-container">
<div id="progress-bar" class="progress-bar"></div>
</div>
<div class="result">
<div class="box">
<h2>Idea</h2>
<div>{{ idea | safe }}</div>
</div>
</div>
<form action="/" method="post" onsubmit="showLoading()">
<div class="form-group">
<label for="topic">Topic:</label>
<input type="text" id="topic" name="topic">
<button type="submit" id="submit-btn">{{ button_text }}</button>
</div>
</form>
<div class="example-container">
<div class="example-label">Example Input:</div>
<div class="example-topics">
<button onclick="fillTopic('Realistic Image Synthesis in Medical Imaging')">Realistic Image Synthesis in Medical Imaging</button>
<button onclick="fillTopic('Using diffusion to generate road layout')">Using diffusion to generate road layout</button>
<button onclick="fillTopic('Using LLM-based agent to generate idea')">Using LLM-based agent to generate idea</button>
</div>
</div>
<div id="loading" class="loading">{{ loading_text }}</div>
{% if error %}
<div class="error">
<div class="box">
<h2>Error</h2>
<div>{{ error }}</div>
</div>
</div>
{% endif %}
</div>
<script>
async function getUserId() {
let userId = sessionStorage.getItem("user_id");
let state = sessionStorage.getItem("state");
console.log("original User ID:", userId, "state:", state);
if (!userId) {
const response = await fetch("/user_id");
const data = await response.json();
userId = data.user_id;
sessionStorage.setItem("user_id", userId);
}
if (!state) {
state = "generate";
sessionStorage.setItem("state", state);
}
console.log("set User ID:", userId, "state:", state);
}
window.onload = getUserId;
{{ script}}
</script>
</body>
</html>
"""
# 重置每日计数器
def reset_counter():
global reply_count
reply_count = 0
# 设置定时任务每天0点重置计数器
scheduler = BackgroundScheduler()
scheduler.add_job(reset_counter, 'cron', hour=0, minute=0)
scheduler.start()
queue = Queue()
def fix_markdown(text):
lines = text.split('\n')
# Initialize the result list
result = []
# Iterate through the lines
for i, line in enumerate(lines):
# Check if the current line starts with a numbered list item
numbers = ['1.', '2.', '3.', '4.', '5.', '6.', '7.', '8.', '9.', '10.', '11.', '12.', '13.', '14.', '15.', '16.', '17.', '18.', '19.', '20.','21.','22.','23.','24.','25.','26.','27.','28.','29.','30.']
if line.lstrip().startswith(tuple(numbers)):
# If it's not the first line and the previous line is not blank, add a blank line
if i > 0 and lines[i - 1].strip():
result.append('')
# Append the current line to the result
result.append(line)
# Join the result list into a single string with newline characters
return '<br>'.join(result)
@app.get("/user_id")
async def get_user_id(request: Request):
user_id = request.cookies.get("user_id")
if not user_id:
user_id = str(uuid.uuid4())
print("successfully set user_id = ", user_id)
return {"user_id": user_id}
@app.get("/", response_class=HTMLResponse)
def form_get():
return Template(html_template).render(idea= "This is a example of the idea geneartion", error=None, reply_count=reply_count,button_text="Generate",loading_text="Generating content, Usually takes 3-4 minutes, please wait...")
@app.post("/", response_class=HTMLResponse)
def form_post(request: Request,response: Response,topic: str = Form(...)):
global reply_count
start_time = time.time()
# 获得每个网页的user_id
user_id = request.cookies.get("user_id", str(uuid.uuid4()))
state = request.cookies.get("state", "generate")
response.set_cookie(key="user_id", value=user_id)
response.set_cookie(key="state", value=state)
script_template = f"""
<script>
// 在页面加载时更新 sessionStorage
window.onload = function() {{
sessionStorage.setItem("user_id", "{user_id}");
sessionStorage.setItem("state", "{new_state}");
}};
</script>
"""
print(f"current user_id={user_id}, state={state}")
loading_text = "Generating content, Usually takes 3-4 minutes, please wait..."
if state == "generate":
if not queue.empty():
queue_len = queue.qsize()
if queue_len + reply_count >= MAX_REPLIES_PER_DAY:
error_message = "Today's maximum number of replies has been reached. Please try again tomorrow."
return Template(html_template).render(idea="", error=error_message, reply_count=reply_count, button_text="Generate",loading_text=loading_text)
error_message = "There are currently {} requests being processed. If you want to queue, please write your original topic and click the Continue button and you will enter the queue.".format(queue_len)
new_state = "continue"
new_button_text = "Continue"
response.set_cookie(key="state", value=new_state)
return Template(html_template).render(idea="", error=error_message, reply_count=reply_count, button_text=new_button_text,loading_text=f"Generating content, Usually takes {(queue_len+1)*3}-{(queue_len+1)*4} minutes, please wait...",script=script_template)
queue.put([user_id,topic])
new_state = "generate"
new_button_text = "Generate"
response.set_cookie(key="state", value=new_state)
queue_len = queue.qsize()
script_template = f"""
<script>
// 在页面加载时更新 sessionStorage
window.onload = function() {{
sessionStorage.setItem("user_id", "{user_id}");
sessionStorage.setItem("state", "{new_state}");
}};
</script>
"""
# 判断当前是否轮到该用户,如果没轮到则一直等待到轮到为止
while queue.queue[0] != [user_id,topic]:
time.sleep(10)
continue
with lock:
logging.info(f"Processing request for topic: {topic}")
start_time = time.time()
error_message = None
idea = ""
time_taken = 0
# 检查是否超过每日最大回复次数
if reply_count >= MAX_REPLIES_PER_DAY:
error_message = "Today's maximum number of replies has been reached. Please try again tomorrow."
logging.info(f"Today's maximum number of replies has been reached. Please try again tomorrow.")
try:
main_llm, cheap_llm = get_llms()
deep_research_agent = DeepResearchAgent(llm=main_llm, cheap_llm=cheap_llm, improve_cnt=1, max_chain_length=5, min_chain_length=3, max_chain_numbers=1)
print(f"begin to generate idea of topic {topic}")
idea, related_experiments, entities, idea_chain, ideas, trend, future, human, year = deep_research_agent.generate_idea_with_chain(topic)
idea = fix_markdown(idea)
idea = markdown.markdown(idea)
# 更新每日回复次数
reply_count += 1
end_time = time.time()
time_taken = round(end_time - start_time, 2)
logging.info(f"Successfully generated idea for topic: {topic}")
except Exception as e:
end_time = time.time()
time_taken = round(end_time - start_time, 2)
logging.error(f"Failed to generate idea for topic: {topic}, Error: {str(e)}")
error_message = str(e)
# 从队列中移除当前用户
queue.get()
return Template(html_template).render(idea=idea, error=error_message, reply_count=reply_count, time_taken=time_taken,button_text=new_button_text,loading_text=loading_text,script=script_template) |