app.py

import streamlit as st
import requests
from bs4 import BeautifulSoup
import datetime
import pytz

# Set the timezone to Indian Standard Time (IST)
indian_timezone = pytz.timezone('Asia/Kolkata')

# Custom CSS for styling
custom_css = """
<style>
body {
    color: orange;
    background-color: black;
}
</style>
"""
st.markdown(custom_css, unsafe_allow_html=True)

# Prescribed limits for AQI, PM2.5, PM10, and temperature
PRESCRIBED_LIMITS = {
    'AQI': {
        'good': (0, 50),
        'moderate': (51, 100),
        'unhealthy_sensitive': (101, 150),
        'unhealthy': (151, 200),
        'very_unhealthy': (201, 300),
        'hazardous': (301, 500)
    },
    'PM2.5': {
        'good': (0, 12.0),
        'moderate': (12.1, 35.4),
        'unhealthy_sensitive': (35.5, 55.5),
        'unhealthy': (55.6, 150.4),
        'very_unhealthy': (150.5, 250.4),
        'hazardous': (250.5, float('inf'))
    },
    'PM10': {
        'good': (0, 50),
        'moderate': (51, 100),
        'unhealthy_sensitive': (101, 250),
        'unhealthy': (251, 350),
        'very_unhealthy': (351, 430),
        'hazardous': (431, float('inf'))
    },
    'Temperature': {
        'comfortable': (0, 25),
        'moderate': (26, 30),
        'warm': (31, 35),
        'hot': (36, float('inf'))
    }
}

# Color codes for different AQI, PM2.5, PM10, and temperature levels
COLOR_CODES = {
    'good': 'green',
    'moderate': 'yellow',
    'unhealthy_sensitive': 'orange',
    'unhealthy': 'red',
    'very_unhealthy': 'purple',
    'hazardous': 'maroon'
}

def check_safety_level(value, parameter):
    for level, limits in PRESCRIBED_LIMITS[parameter].items():
        if limits[0] <= value <= limits[1]:
            return level
    return None

def get_aqi_data():
    url = 'https://www.aqi.in/dashboard/india/jammu-and-kashmir/srinagar'
    r = requests.get(url)
    soup = BeautifulSoup(r.text, 'html.parser')
    meta_tag = soup.find('meta', {'name': 'description'})
    line = meta_tag['content']

    # Extract AQI value
    aqi_start = line.find("AQI) is") + len("AQI) is")
    aqi_end = line.find(" level")
    aqi = int(line[aqi_start:aqi_end].strip().split()[0])
    aqi_level = line[aqi_start:aqi_end].strip().split()[1]

    # Extract PM2.5 value
    pm25_start = line.find("PM2.5 (") + len("PM2.5 (")
    pm25_end = line.find(" µg/m³)", pm25_start)
    pm25 = float(line[pm25_start:pm25_end].strip())

    # Extract PM10 value
    pm10_start = line.find("PM10 (") + len("PM10 (")
    pm10_end = line.find(" µg/m³)", pm10_start)
    pm10 = float(line[pm10_start:pm10_end].strip())

    # Extract temperature value
    temp_start = line.find("temperature (") + len("temperature (")
    temp_end = line.find("˚C)", temp_start)
    temp = float(line[temp_start:temp_end].strip())

    return aqi, aqi_level, pm25, pm10, temp

def main():
    # Logo
    logo = 'LOGO.png'
    st.image(logo, width=200)

    st.title('Real Time SXR AQI Dashboard')
    st.subheader(f'Real-time Air Quality Monitoring - {datetime.datetime.now(indian_timezone).strftime("%Y-%m-%d %H:%M:%S")}')  # Displaying date and time

    aqi, aqi_level, pm25, pm10, temp = get_aqi_data()

    # Display AQI with safety level
    st.markdown('### Current Data:')
    st.write(f"- **AQI:** {aqi} ({aqi_level})")
    aqi_safety = check_safety_level(aqi, 'AQI')
    if aqi_safety:
        st.write(f"Safety Level: {aqi_safety}")
        color_code = COLOR_CODES[aqi_safety]
        st.markdown(f'<p style="color:{color_code};">The AQI level is {aqi_safety}.</p>', unsafe_allow_html=True)

    # Display PM2.5 with safety level
    st.write(f"- **PM2.5:** {pm25} µg/m³")
    pm25_safety = check_safety_level(pm25, 'PM2.5')
    if pm25_safety:
        st.write(f"Safety Level: {pm25_safety}")
        color_code = COLOR_CODES[pm25_safety]
        st.markdown(f'<p style="color:{color_code};">The PM2.5 level is {pm25_safety}.</p>', unsafe_allow_html=True)

    # Display PM10 with safety level
    st.write(f"- **PM10:** {pm10} µg/m³")
    pm10_safety = check_safety_level(pm10, 'PM10')
    if pm10_safety:
        st.write(f"Safety Level: {pm10_safety}")
        color_code = COLOR_CODES[pm10_safety]
        st.markdown(f'<p style="color:{color_code};">The PM10 level is {pm10_safety}.</p>', unsafe_allow_html=True)

    # Display temperature with safety level
    st.write(f"- **Temperature:** {temp}˚C")
    temp_safety = check_safety_level(temp, 'Temperature')
    if temp_safety:
        st.write(f"Safety Level: {temp_safety}")
        color_code = COLOR_CODES[temp_safety]
        st.markdown(f'<p style="color:{color_code};">The temperature level is {temp_safety}.</p>', unsafe_allow_html=True)

    # Developer section
    st.markdown('### Developer:')
    st.text('Adil Aziz')
    st.text('Data Scientist')
    st.text('adilaziz2013@gmail.com')

if __name__ == '__main__':
    main()