138 lines
6.5 KiB
Markdown
138 lines
6.5 KiB
Markdown
# ⏱️ TimeToLeave
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> **TimeToLeave** is a smart departure planner that tells you exactly when to leave home to catch your public transport for upcoming appointments. It syncs with your personal calendar, checks real-time train/bus departures (HAFAS & WienerLinien), calculates your bike route to the station, and provides a live "Leave Status" based on real-time delays.
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## 🚀 How It Works
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1. **Sync Your Calendar:** Import your `.ics` file or provide a calendar URL. The app extracts your upcoming events and destinations.
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2. **Set Your Origin:** Define your home station or let the app use your current geolocation.
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3. **Journey Calculation:** The app queries the HAFAS protocol and WienerLinien APIs to find the best public transport connections to your event destination.
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4. **Real-Time Monitoring:** It monitors your train's real-time departure time, accounts for delays, and adds your local travel time (e.g., biking to the station) to calculate a dynamic countdown.
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5. **Leave Status:** You get a clear status: `Leave now`, `On time`, `Delayed +X min`, or `Departure missed`.
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## 🧱 Project Structure
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This project uses a monorepo setup (npm workspaces) to manage multiple, interconnected parts:
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| Directory | Description |
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| :--- | :--- |
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| `apps/web/` | The main web dashboard built with **Next.js 16**, React 19, and Tailwind CSS 4. |
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| `apps/mobile/` | The on-the-go mobile client built with **React Native 0.81** and **Expo 54**. |
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| `packages/core/` | Shared domain logic, types (`Event`, `Journey`, `Station`), countdown utilities, and status calculators. |
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| `packages/api-client/` | A lightweight client that handles API proxies for HAFAS requests, calendar parsing, geocoding, and bike routing. |
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## 🛠 Development & Running the Application
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### Prerequisites
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* Node.js (version 20.x or higher)
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* npm (version 9.x or higher)
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### Installation
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1. **Clone the repository:**
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```bash
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git clone <repository-url>
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cd TimeToLeave
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```
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2. **Install dependencies:**
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```bash
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npm install
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```
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3. **Environment variables:**
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* For `apps/web` and `apps/mobile`, copy `.env.example` to `.env` in each app directory and update the backend API URL and any required keys.
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### Available Scripts
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| Script | Command | Description |
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| :--- | :--- | :--- |
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| `dev` | `npm run dev` | Starts the Next.js development server for the Web dashboard. |
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| `dev:mobile` | `npm run dev:mobile` | Starts the Expo development server for the Mobile client. |
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| `build` | `npm run build` | Builds the production bundle for the Web application. |
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| `test` | `npm run test` | Runs Vitest for the Web app and Jest for the Mobile app. |
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| `lint` | `npm run lint` | Runs ESLint across both web and mobile clients. |
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| `typecheck` | `npm run typecheck` | Runs TypeScript type checking across all workspaces. |
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## 📝 Key Features & Tech Stack
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### Web Application (`apps/web`)
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* **Framework:** Next.js 16.2.6 (App Router)
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* **UI:** React 19.2.4 with Tailwind CSS 4
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* **State Management:** Zustand (for events and station selection)
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* **Routing:** Next.js built-in routing for `/add-event`, `/calendar`, and `/event` views.
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### Mobile Application (`apps/mobile`)
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* **Framework:** React Native 0.81 via Expo 54
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* **Navigation:** React Navigation 7 (Native Stack)
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* **Device APIs:**
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* `expo-location`: For geocoding your current position.
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* `expo-calendar`: For native calendar event integration.
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* `expo-notifications`: For native push notifications when it's time to leave.
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* `@react-native-async-storage/async-storage`: For persisting settings and local state.
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### Core Logic (`packages/core`)
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* **Countdown Utilities:** Calculates time-deltas and assigns color codes (Red/Orange/Yellow/Green/Blue) based on urgency.
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* **HAFAS Time Parsing:** Highly accurate timezone-aware parsing for HAFAS timestamps, specifically handling `Europe/Vienna` (CET/CEST) and DST transitions.
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* **WienerLinien Support:** Native types and handling for Vienna public transport departures.
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* **Leave Status:** Derives human-readable statuses (`Leave now`, `Delayed +10 min`, etc.) by comparing the best non-cancelled journey's real departure time against the current time.
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## 📄 API Client Usage
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The `@timetoleave/api-client` package provides a clean interface to interact with your backend proxy, which handles the heavy lifting of HAFAS protocol communication and calendar parsing.
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```typescript
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import { ApiClient } from "@timetoleave/api-client";
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// Initialize with your backend URL
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const api = new ApiClient("http://localhost:3000");
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// 1. Sync your calendar
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const events = await api.fetchCalendar("https://example.com/calendar.ics", 7);
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// 2. Search for a station by name
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const stations = await api.searchStation("Wien Mitte");
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// 3. Find journeys between stations for a specific date
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const journeys = await api.searchJourneys(
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stations[0].extId, // From
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"dest:extId", // To
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new Date() // Date
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);
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// 4. Get a bike route from your current location to the station
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const bikeRoute = await api.getBikeRoute(
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48.2082, 16.3738, // From lat/lng
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stations[0].lat, stations[0].lng // To lat/lng
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);
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```
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## 🛡️ Testing & Quality Assurance
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The project provides comprehensive scripts for maintaining code quality:
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* **Linting:** Use `npm run lint` to catch stylistic and structural errors via ESLint 9.
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* **Type Checking:** Use `npm run typecheck` to ensure strict type safety across the codebase via TypeScript 5.
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* **Testing:**
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* The web application uses **Vitest** (v4.1.5) with **jsdom** and **@testing-library/react**.
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* The mobile application uses **Jest** (v29.7.0) with **jest-expo** and **react-test-renderer**.
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## 📂 File Structure
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```text
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├── apps/
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│ ├── mobile/ # Mobile application using React Native and Expo
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│ └── web/ # Web application using Next.js and Tailwind CSS
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├── packages/
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│ ├── api-client/ # API client for HAFAS, Calendar, and Routing proxies
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│ └── core/ # Shared domain types, countdowns, and HAFAS time utilities
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├── node_modules/ # Third-party dependencies
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└── README.md # The file you're reading now
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```
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---
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*Built for developers who bike to the train and hate missing their connections.*
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