# import required packages
import pandas as pd
import datetime
import smtplib
import time
import requests
from win10toast import ToastNotifier

# your gmail credentials here
GMAIL_ID = 'your_email_here'
GMAIL_PWD = 'your_password_here'

# for desktop notification
toast = ToastNotifier()

# define a function for sending email
def sendEmail(to, sub, msg):
  
    # connection to gmail
    gmail_obj = smtplib.SMTP('smtp.gmail.com', 587) 
    
    # starting the session
    gmail_obj.starttls()     
    
    # login using credentials
    gmail_obj.login(GMAIL_ID, GMAIL_PWD)   
    
    # sending email
    gmail_obj.sendmail(GMAIL_ID, to, 
                   f"Subject : {sub}\n\n{msg}") 
    
    # quit the session
    gmail_obj.quit()  
    
    print("Email sent to " + str(to) + " with subject " 
          + str(sub) + " and message :" + str(msg))
    
    toast.show_toast("Email Sent!" , 
                     f"{name} was sent e-mail",
                     threaded = True, 
                     icon_path = None,
                     duration = 6)

    while toast.notification_active():
        time.sleep(0.1)

# define a function for sending sms        
def sendsms(to, msg, name, sub):
  
    url = "https://www.fast2sms.com/dev/bulk"
    payload = f"sender_id=FSTSMS&message={msg}&language=english&route=p&numbers={to}"
    
    headers = {
        'authorization': "API_KEY_HERE",
        'Content-Type': "application/x-www-form-urlencoded",
        'Cache-Control': "no-cache",
        }

    response_obj = requests.request("POST", url,
                                data = payload,
                                headers = headers)
    print(response_obj.text)
    print("SMS sent to " + str(to) + " with subject :" + 
          str(sub) + " and message :" + str(msg))
    
    toast.show_toast("SMS Sent!" ,
                     f"{name} was sent message", 
                     threaded = True, 
                     icon_path = None,
                     duration = 6)

    while toast.notification_active():
        time.sleep(0.1)

# driver code
if __name__=="__main__":
  
      # read the excel sheet having all the details
    dataframe = pd.read_excel("excelsheet.xlsx")   
    
    # today date in format : DD-MM
    today = datetime.datetime.now().strftime("%d-%m") 
    
    # current year in format : YY
    yearNow = datetime.datetime.now().strftime("%Y")
    
    # writeindex list
    writeInd = []                                                   

    for index,item in dataframe.iterrows():
      
        msg = "Many Many Happy Returns of the day dear " + str(item['NAME']) 
               
        # stripping the birthday in excel 
        # sheet as : DD-MM
        bday = item['Birthday'].strftime("%d-%m")        
        
        # condition checking
        if (today == bday) and yearNow not in str(item['Year']):    
            
            # calling the sendEmail function
            sendEmail(item['Email'], "Happy Birthday",
                      msg)    
            
            # calling the sendsms function
            sendsms(item['Contact'], msg, item['NAME'],
                    "Happy Birthday")   
            
            writeInd.append(index)                                  

    for i in writeInd:
      
        yr = dataframe.loc[i,'Year']
        
        # this will record the years in which
        # email has been sent
        dataframe.loc[i,'Year'] = str(yr) + ',' + str(yearNow)             

    dataframe.to_excel('excelsheet.xlsx', 
                index = False)