# itsvishwasj/smart_travel_app architecture

> Architecture diagram of the GitHub repository itsvishwasj/smart_travel_app, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/itsvishwasj/smart_travel_app
- Repository: https://github.com/itsvishwasj/smart_travel_app

## Overview

This is a Flutter smart-travel app. The file names indicate authentication, trip suggestions, weather, plans, and expense tracking, but the README is only Flutter boilerplate and no Dart implementation was excerpted. The graph therefore preserves those apparent product areas without asserting their runtime calls or data flow. Firebase-related platform plugins are registered, but their use by the Dart features is not shown.

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["App shell"]
  node_entry["App entry<br/>[main.dart]"]
end

subgraph group_identity["User identity"]
  node_auth["Authentication service<br/>[auth_service.dart]"]
  node_login["Login screen<br/>[login_screen.dart]"]
end

subgraph group_travel["Travel planning"]
  node_suggestions["Trip suggestions"]
  node_weather["Weather"]
  node_plans["Plan history"]
end

subgraph group_expenses["Expense tracking"]
  node_expense_tab["Expense tab<br/>[expense_tab.dart]"]
  node_expense_history["Expense history"]
end

node_traveler(("Traveler"))

click node_entry "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/main.dart"
click node_auth "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/auth_service.dart"
click node_login "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/login_screen.dart"
click node_suggestions "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/trip_suggestions_screen.dart"
click node_weather "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/weather_screen.dart"
click node_plans "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/plans_history_screen.dart"
click node_expense_tab "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/expense_tab.dart"
click node_expense_history "https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/expenses_history_screen.dart"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_entry toneBlue
class node_auth,node_login toneAmber
class node_suggestions,node_weather,node_plans toneMint
class node_expense_tab,node_expense_history toneRose
class node_traveler toneIndigo
```

## Components

### App shell

- [App entry](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/main.dart): `lib/main.dart`

### User identity

- [Authentication service](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/auth_service.dart): `lib/auth_service.dart`
- [Login screen](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/login_screen.dart): `lib/login_screen.dart`

### Travel planning

- [Trip suggestions](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/trip_suggestions_screen.dart): `lib/trip_suggestions_screen.dart`
- [Weather](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/weather_screen.dart): `lib/weather_screen.dart`
- [Plan history](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/plans_history_screen.dart): `lib/plans_history_screen.dart`

### Expense tracking

- [Expense tab](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/expense_tab.dart): `lib/expense_tab.dart`
- [Expense history](https://github.com/itsvishwasj/smart_travel_app/blob/main/lib/expenses_history_screen.dart): `lib/expenses_history_screen.dart`

### Other components

- **Traveler**