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"""About tab rendering functionality"""
import os
from config import app_config
import data
import requests
import streamlit as st
###
### INTERNAL FUNCTIONS
###
def __paraphrase(text):
### Invoke the lambda function via REST api call to paraphrase the text
url = os.getenv("API_ENDPOINT")
headers = {"Content-Type": "application/json"}
payload = {"text": text}
response = requests.request(method="POST", url=url, headers=headers, json=payload)
response = response.json()
paraphrased_text = response["paraphrased_text"]
return paraphrased_text
def __refresh_access_cnt_stats(curr_count, access_stats):
access_cnt_stats = f"""
|Maximum allowed requests|Requests made so far|Requests available|
|:---: |:---: |:---:|
|{app_config.max_access_count}|{curr_count}|{app_config.max_access_count - curr_count}
"""
access_stats.empty()
access_stats.container().markdown(access_cnt_stats)
###
### MAIN FLOW, entry point
###
def render():
### show the current and available number of requests
st.success(
"Due to cost constraints the total number of paraphrasing requests are "
+ "restricted, as shown below..."
)
access_stats = st.empty()
access_counter = data.get_access_counter()
curr_count = access_counter["current-count"]
__refresh_access_cnt_stats(curr_count, access_stats)
st.divider()
### if maximum number of requests are exhausted then throw and error and abort
if curr_count >= app_config.max_access_count:
st.error(
"SORRY! the maximum number of allowed requests are exhausted, please ping me via "
+ "`Contact Me` section in `About` tab if you see this message."
)
else:
### render the UI
output_text = "Paraphrased text will appear here"
input_text = st.text_area(
"Input Text:",
placeholder="Enter the text you want to paraphrase",
help="Maximum of 100 words are allowed",
height=250,
)
with st.expander("Important Note...", expanded=True):
st.warning(
"***Please note that when you try first time, app may return an "
+ "`Internal Error`, this is expected and is due to the AWS hosted hardware"
+ " taking some time to warm-up first time. After couple of trials you "
+ "should be able to see the results.***",
icon=app_config.icon_important,
)
if st.button("Paraphrase ✒️"):
## if max word length breached throw and error
if len(input_text.split(" ")) > 100:
st.error(
"In this demo app, a maximum of 100 words are allowed in input text, "
+ "please reduce the text length and try again",
icon=app_config.icon_stop,
)
## all good, proceed to process now
else:
with st.spinner("Processing..."):
output_text = __paraphrase(input_text)
# update the access-count in DB and refresh the stats display
curr_count = data.update_access_count()
__refresh_access_cnt_stats(curr_count, access_stats)
# show the original and paraphrased text
st.divider()
st.subheader("Original Text")
st.write(input_text)
st.subheader("Paraphrased Text")
st.write(output_text)
st.divider()
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