health-apps-backend/services/emailService.py

import dotenv
import json

dotenv.load_dotenv()
import os
import boto3
from logging import getLogger

logger = getLogger(__name__)

class EmailService:
    def __init__(self):
        self.client = boto3.client(
            "ses",
            region_name=os.getenv("AWS_REGION"),
            aws_access_key_id=os.getenv("AWS_ACCESS_KEY"),
            aws_secret_access_key=os.getenv("AWS_SECRET_KEY"),
        )
        self.senderEmail = os.getenv("AWS_SENDER_EMAIL")

    def createTemplate(self):
        """Create or update email templates"""
        try:
            otp_template = {
                "TemplateName": "sendOTP",
                "SubjectPart": "Your OTP for login is {{otp}}",
                "HtmlPart": """
                    <p>Dear User,</p>
                    <p>Thank you for using our service. To complete your authentication, please use the following one-time password (OTP):</p>
                    <p>OTP: {{otp}}</p>
                    <p>This OTP is valid for 15 minutes. Do not share this OTP with anyone for security reasons. If you did not request this OTP, please ignore this email.</p>
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear User, Thank you for using our service. To complete your authentication, please use the following one-time password (OTP): OTP: {{otp}} This OTP is valid for 15 minutes. Do not share this OTP with anyone for security reasons. If you did not request this OTP, please ignore this email. Thank you, Team 24x7 AI Health Receptionist"
            }

            new_clinic_template = {
                "TemplateName": "newClinic",
                "SubjectPart": "New Clinic Added",
                "HtmlPart": """
                    <p>Dear Admin,</p>
                    <p>A new clinic has been added to the system.</p>
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear Admin, A new clinic has been added to the system. Thank you, Team 24x7 AI Health Receptionist"
            }

            reject_clinic_template = {
                "TemplateName": "rejectClinic",
                "SubjectPart": "Clinic Rejected",
                "HtmlPart": """
                    <p>Dear User,</p>
                    <p>Your clinic {{name}} has been rejected.</p>
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear User, Your clinic {{name}} has been rejected. Thank you, Team 24x7 AI Health Receptionist"
            }

            apporve_clinic_template = {
                "TemplateName": "apporveClinic",
                "SubjectPart": "Clinic Approved",
                "HtmlPart": """
                    <p>Dear User,</p>
                    <p>Congratulations! Your clinic {{name}} has been approved.</p>
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear User, Congratulations! Your clinic {{name}} has been approved. Thank you, Team 24x7 AI Health Receptionist"
            }

            new_admin_template = {
                "TemplateName": "newAdmin",
                "SubjectPart": "Login Credentials",
                "HtmlPart": """
                    <p>Dear {{username}},</p>
                    <p>You have been granted admin access to manage the 24x7 AI Health Receptionist System Admin Panel.</p>
                    <br />
                    <p>Your login credentials are:</p>
                    <div>
                        <p>Email: {{email}}</p>
                        <p>Password: {{password}}</p>
                    </div>
                    <br />
                    <p>Use the following link to login:</p>
                    <p>Login URL: {{login_url}}</p>
                    <br />
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear User, Your login credentials are: Email: {{email}} Password: {{password}} Login URL: {{login_url}} Thank you, Team 24x7 AI Health Receptionist System"
            }

            reset_password_template = {
                "TemplateName": "resetPassword",
                "SubjectPart": "Reset Password",
                "HtmlPart": """
                    <p>Dear User,</p>
                    <p>You have requested to reset your password. Please use the following link to reset your password:</p>
                    <p>Reset Password URL: {{reset_password_url}}</p>
                    <br />
                    <p>Thank you,<br/>Team 24x7 AI Health Receptionist</p>
                """,
                "TextPart": "Dear User, You have requested to reset your password. Please use the following link to reset your password: Reset Password URL: {{reset_password_url}} Thank you, Team 24x7 AI Health Receptionist"
            }

            # self.client.create_template(Template=otp_template)
            # self.client.create_template(Template=new_clinic_template)
            # self.client.create_template(Template=reject_clinic_template)
            # self.client.create_template(Template=apporve_clinic_template)
            # self.client.create_template(Template=new_admin_template)
            # self.client.create_template(Template=new_admin_template)
            self.client.create_template(Template=reset_password_template)

        except Exception as e:
            logger.error(f"Failed to create template: {e}")
            raise Exception("Failed to create template")

    def send_email(self, template_name: str, to_address: str, template_data: dict) -> None:
        """Send an email using a template"""
        try:
            response = self.client.send_templated_email(
                Source=self.senderEmail,
                Destination={
                    'ToAddresses': [to_address]
                },
                Template=template_name,
                TemplateData=json.dumps(template_data),
                ReplyToAddresses=[self.senderEmail]
            )
            logger.info(f"Email sent to {to_address} successfully. MessageId: {response['MessageId']}")
            return
        except Exception as e:
            logger.error(f"Error sending email to {to_address}: {str(e)}")
            # raise TODO: un-comment when ready
    
    def send_otp_email(self, email: str, otp: str) -> None:
        self.send_email(
            template_name="sendOTP",
            to_address=email,
            template_data={"otp": otp, "email": email}
        )
        return

    def send_new_clinic_email(self, email: str, clinic_name: str):
        """Send new clinic email"""
        self.send_email(
            template_name="newClinic",
            to_address=email,
            template_data={"clinic_name": clinic_name, "email": email}
        )
        return

    def send_reject_clinic_email(self, email: str, clinic_name: str):
        """Send reject clinic email"""
        self.send_email(
            template_name="rejectClinic",
            to_address=email,
            template_data={"clinic_name": clinic_name, "email": email}
        )
        return

    def send_apporve_clinic_email(self, email: str, clinic_name: str):
        """Send apporve clinic email"""
        self.send_email(
            template_name="apporveClinic",
            to_address=email,
            template_data={"clinic_name": clinic_name, "email": email}
        )
        return

    def send_new_admin_email(self, username: str, email: str, password:str, login_url:str):
        """Send new admin email"""
        self.send_email(
            template_name="newAdmin",
            to_address=email,
            template_data={"username": username, "email": email, "password": password, "login_url": login_url}
        )
        return

    def send_reset_password_email(self, email: str, reset_password_url: str):
        """Send reset password email"""
        self.send_email(
            template_name="resetPassword",
            to_address=email,
            template_data={"reset_password_url": reset_password_url}
        )
        return