Ride Price Calculator

A Spring Boot application that calculates ride-sharing prices for Estonian cities (Tallinn, Tartu, Pärnu) based on vehicle type, live weather data, and time of day.

Features

• Dynamic pricing — Base fees vary by city and vehicle (Car, Bike, Scooter)
• Weather-based extras — Temperature, wind speed, and weather phenomena affect scooter and bike fares
• Time-of-day multipliers — Rush hour (07:00–09:00, 16:00–19:00) and late night (00:00–05:00) adjustments
• Risk score — 0–100 score indicating ride conditions based on weather
• Live weather data — Fetches current conditions from WeatherAPI.com every 45 seconds

Tech Stack

• Java 21 · Spring Boot 3.4 · Spring Data JPA · H2 Database
• WeatherAPI.com for real-time weather
• SpringDoc OpenAPI for API documentation

Prerequisites

• Java 21 or later
• Maven 3.6+ (or use the included Maven wrapper)

Getting Started

Run the application

cd food_delivery_app
./mvnw spring-boot:run

On Windows:

cd food_delivery_app
mvnw.cmd spring-boot:run

Access the app

URL	Description
http://localhost:8080	Web UI — price calculator
http://localhost:8080/ride-price	REST API endpoint
http://localhost:8080/swagger-ui.html	OpenAPI / Swagger docs
http://localhost:8080/h2-console	H2 database console

Note: Weather data is imported every 45 seconds. Wait ~1 minute after startup before requesting prices.

API

GET /ride-price

Calculate ride price for a given city, vehicle, and optional ride time.

Query parameters

Parameter	Type	Required	Description
city	string	Yes	Tallinn, Tartu, or Pärnu
vehicle	string	Yes	Car, Bike, or Scooter
rideTime	string	No	ISO 8601 datetime (e.g. 2026-02-04T09:37:00.000Z). Defaults to current time.

Example request

GET /ride-price?city=Tallinn&vehicle=Car&rideTime=2026-02-04T09:37:00.000Z

Example response

{
"baseFee": 4.0,
"extraFee": 0.0,
"multiplier": 1.2,
"finalPrice": 4.8,
"riskScore": 85
}

Pricing Rules

Base fees (€)

City	Car	Scooter	Bike
Tallinn	4.00	3.50	3.00
Tartu	3.50	3.00	2.50
Pärnu	3.00	2.50	2.00

Extra fees (Scooter & Bike only)

• Temperature: Below -10°C: +€1.00 · -10°C to 0°C: +€0.50
• Wind (Bike): 10–20 m/s: +€0.50 · Above 20 m/s: forbidden
• Weather: Snow/sleet: +€1.00 · Rain: +€0.50 · Glaze/hail/thunder: forbidden

Time multipliers

• 07:00–09:00, 16:00–19:00 → ×1.2
• 00:00–05:00 → ×1.1
• Other times → ×1.0

Project Structure

food_delivery_app/
├── src/main/java/com/crt/fujitsu/ride_pricing_app/
│ ├── config/ # RestTemplate, CORS
│ ├── controller/ # REST & web controllers
│ ├── dto/ # RidePriceEstimate
│ ├── exception/ # Error handling
│ ├── model/ # WeatherData entity
│ ├── repository/ # WeatherDataRepository
│ └── service_logic/ # Pricing, weather, calculators
├── src/main/resources/
│ ├── application.properties
│ └── static/index.html
└── pom.xml

Configuration

• Database: H2 in-memory (jdbc:h2:mem:weather_database)
• Weather API: WeatherAPI.com (key in ApiWeather.java)
• Weather import: Every 45 seconds via @Scheduled

Running Tests

cd food_delivery_app
./mvnw test

License

MIT