Flesh out the email implementation

src/config/email.py

@@ -1,3 +1,4 @@
+from src.utils.secret import SecretBox
 from src.config.parse import assert_key_of_type
 from typing import Any
 from dataclasses import dataclass
@@ -8,11 +9,11 @@ EmailAddress = str
 
 @dataclass
 class Email:
-    bird_api_key: str
+    bird_api_key: SecretBox[str]
     sender: EmailAddress
 
     @classmethod
     def from_dict(cls, config: dict[str, Any]) -> 'Email':
         assert_key_of_type(config, 'bird_api_key', str)
         assert_key_of_type(config, 'sender', str)
-        return Email(bird_api_key=config['bird_api_key'], sender=config['sender'])
+        return Email(bird_api_key=SecretBox(config['bird_api_key']), sender=config['sender'])

src/services/email.py

@@ -1,5 +1,5 @@
-from dataclasses import dataclass, field
-from email.utils import formatdate, make_msgid
+import requests
+from dataclasses import dataclass
 import abc
 
 from ..config.email import Email as EmailConfig, EmailAddress
@@ -17,10 +17,6 @@ class EmailDTO:
     text: str
     # HTML alternate content. (Optional: Textual content is required)
     html: str | None = None
-    # A unique ID for identifying this Email
-    message_id: str = field(default_factory=make_msgid)
-    # The date that the email was sent
-    date: str = field(default_factory=lambda: formatdate(localtime=True))
 
 
 class EmailService:
@@ -30,12 +26,20 @@ class EmailService:
 
 
 class BirdEmailServiceImpl(EmailService):
+    BIRD_API_ENDPOINT = 'https://eu1.platform.bird.com/v1/email/messages'
+
     def __init__(self, config: EmailConfig):
         self._config = config
 
     def send_email(self, email: EmailDTO):
-        # TODO: Implement Bird Specific Email sending and Error handling
-        pass
+        payload = {'from': email.sender, 'to': email.to, 'subject': email.subject, 'text': email.text}
+
+        if email.html:
+            payload['html'] = email.html
+
+        headers = {'Authorization': f'Bearer {self._config.bird_api_key.expose_secret()}'}
+        response = requests.post(BirdEmailServiceImpl.BIRD_API_ENDPOINT, json=payload, headers=headers)
+        return response.ok
 
 
 def get_service(config: EmailConfig) -> EmailService:

src/utils/secret.py

@@ -0,0 +1,14 @@
+class SecretBox[T]:
+    """A helper abstraction for making sure secrets aren't leaked accidentally"""
+
+    def __init__(self, item: T):
+        self._item = item
+
+    def expose_secret(self) -> T:
+        return self._item
+
+    def __str__(self):
+        return '<SECRET>'
+
+    def __repr__(self):
+        return f'SecretBox<{type(self._item)}>'