feat(sync): implement submission state tracking

Author: arnav-on-code

config/settings.py

@@ -1,10 +1,17 @@
 from pathlib import Path
-from dotenv import load_dotenv
 import os
 
-load_dotenv()
+from dotenv import load_dotenv
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+load_dotenv(BASE_DIR / ".env")
+
 
 class Config:
+    BASE_DIR = BASE_DIR
+
+    BASE_URL = "https://leetcode.com"
+    GRAPHQL_URL = f"{BASE_URL}/graphql"
 
     LEETCODE_SESSION = os.getenv("LEETCODE_SESSION", "")
     LEETCODE_USERNAME = os.getenv("LEETCODE_USERNAME", "")
@@ -13,16 +20,35 @@ class Config:
     GITHUB_USERNAME = os.getenv("GITHUB_USERNAME", "")
     GITHUB_EMAIL = os.getenv("GITHUB_EMAIL", "")
 
-    STORAGE_DIR = Path(os.getenv("STORAGE_DIR", "storage"))
-    LOGS_DIR = Path(os.getenv("LOGS_DIR", "logs"))
-
-    GRAPHQL_URL = os.getenv("GRAPHQL_URL", "https://leetcode.com/graphql")
+    STORAGE_DIR = BASE_DIR / os.getenv("STORAGE_DIR", "storage")
+    LOGS_DIR = BASE_DIR / os.getenv("LOGS_DIR", "logs")
 
-    REQUEST_TIMEOUT = 20
+    REQUEST_TIMEOUT: int = 20
 
     USER_AGENT = (
         "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
-        "AppleWebKit/537.36 "
-        "(KHTML, like Gecko) "
+        "AppleWebKit/537.36 (KHTML, like Gecko) "
         "Chrome/137.0 Safari/537.36"
-    )
+    )
+
+    @classmethod
+    def initialize(cls) -> None:
+        cls.STORAGE_DIR.mkdir(parents=True, exist_ok=True)
+        cls.LOGS_DIR.mkdir(parents=True, exist_ok=True)
+
+        (cls.STORAGE_DIR / "cache").mkdir(exist_ok=True)
+        (cls.STORAGE_DIR / "submissions").mkdir(exist_ok=True)
+
+    @classmethod
+    def validate(cls):
+        required = (
+            "LEETCODE_SESSION",
+            "LEETCODE_USERNAME",
+            "CSRF_TOKEN",
+        )
+
+        for variable in required:
+            if not getattr(cls, variable):
+                raise ValueError(f"Missing environment variable: {variable}")
+            
+

main.py

@@ -2,9 +2,14 @@
 from rich.panel import Panel
 from rich.table import Table
 
+from sync.detector import SubmissionDetector
+
+
 from leetcode.auth import LeetCodeAuth
 from leetcode.client import LeetCodeClient
 from leetcode.api import LeetCodeAPI
+from config.settings import Config
+
 
 console = Console()
 
@@ -56,13 +61,15 @@ def display_recent_submissions(submissions):
 
 
 def main():
-    banner()
+    Config.validate()
+    Config.initialize()
 
-    auth = LeetCodeAuth()
-    session = auth.get_session()
+    banner()
 
-    client = LeetCodeClient(session)
-    api = LeetCodeAPI(client)
+    session = LeetCodeAuth().get_session()
+    api = LeetCodeAPI(
+        LeetCodeClient(session)
+    )
 
     # Profile
     profile = api.get_profile()
@@ -80,8 +87,28 @@ def main():
     # Recent submissions
     submissions = api.get_recent_submissions()
 
+
+    detector = SubmissionDetector()
+
+    new_submissions = detector.find_new(submissions)
+
+    if new_submissions:
+        console.print(
+            f"\n[bold green]Found {len(new_submissions)} new submission(s).[/bold green]\n"
+        )
+    else:
+        console.print(
+            "\n[bold blue]No new submissions found.[/bold blue]\n"
+        )
+
+    for submission in new_submissions:
+        console.print(f"• {submission.title}")
+
     display_recent_submissions(submissions)
 
+    if new_submissions:
+        detector.update(new_submissions[0])
+
 
 if __name__ == "__main__":
     main()