feat: project kickstart

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# FastAPI specific
+*.log
+*.pot
+*.pyc
+*.pyo
+*.pyd
+*.db
+*.sqlite3
+*.sql
+*.env
+
+# Virtual environment
+venv/
+env/
+ENV/
+
+# Node modules (for React)
+node_modules/
+
+# React build files
+build/
+dist/
+*.map
+
+# Logs
+logs/
+*.log
+
+# macOS
+.DS_Store
+
+# Coverage reports
+htmlcov/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+
+# Static and media files (for FastAPI)
+static/
+media/
+
+# MySQL dump files
+*.sql
+
+# Other unneeded files
+*.swp
+*.swo
+
+# NPM debug files
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# IDE-specific files
+.idea/
+.vscode/
+
+# Testing outputs
+coverage/
+*.pytest_cache

backend/main.py

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+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+from typing import List
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI()
+
+# Adding CORS middleware to allow requests from React frontend
+origins = [
+ "http://localhost:3000", # Frontend URL
+]
+
+app.add_middleware(
+ CORSMiddleware,
+ allow_origins=origins,
+ allow_credentials=True,
+ allow_methods=["*"],
+ allow_headers=["*"],
+)
+
+# Accident Hotspot model
+class AccidentHotspot(BaseModel):
+ lat: float
+ lng: float
+ intensity: int
+ description: str
+
+# Mock data simulating accident hotspots
+mock_hotspots = [
+ # One hotspot near the user's location
+ {"lat": 25.319000, "lng": 55.375000, "intensity": 6, "description": "High accident risk, close to your location."},
+
+ # Two hotspots far from the user's location
+ {"lat": 25.3573, "lng": 55.4033, "intensity": 5, "description": "Moderate accident risk, located further away."},
+ {"lat": 25.3625, "lng": 55.4307, "intensity": 4, "description": "Occasional accidents in residential zone, located far away."},
+]
+
+@app.get("/api/accident-hotspots", response_model=List[AccidentHotspot])
+async def get_accident_hotspots():
+ return mock_hotspots
+
+# User authentication endpoints
+class User(BaseModel):
+ username: str
+ password: str
+ first_name: str = None
+ last_name: str = None
+
+fake_user_db = {}
+
+@app.post("/signup")
+async def signup(user: User):
+ if user.username in fake_user_db:
+ raise HTTPException(status_code=400, detail="Username already exists")
+ fake_user_db[user.username] = {
+ "password": user.password,
+ "first_name": user.first_name,
+ "last_name": user.last_name,
+ }
+ return {"message": "Signup successful"}
+
+@app.post("/login")
+async def login(user: User):
+ if user.username not in fake_user_db or fake_user_db[user.username]["password"] != user.password:
+ raise HTTPException(status_code=400, detail="Incorrect username or password")
+ return {
+ "message": "Login successful",
+ "first_name": fake_user_db[user.username]["first_name"],
+ "last_name": fake_user_db[user.username]["last_name"]
+ }