Purpose
The Settings Screen allows users to configure various aspects of the application, including shop details, receipt customization, hardware connections (printers), and data management (backup/restore/import).
Widgets
Shop Details
Form fields to edit shop information. In Demo Mode, these are read-only.
- Shop Name: Name of the business.
- Email: Contact email.
- Phone Number: Contact phone.
- Address: Physical location.
Receipt Settings
- Thank You Message: Custom footer text for receipts.
AI Integration
- Gemini API Key: Input for the AI API key used for features like book scanning. This remains editable even in Demo Mode.
Printer Settings
- Printer Configuration: A list tile that navigates to the `PrinterConfigScreen`.
- Print Method: A dropdown to select between `Save as PDF` (system default) and `Thermal Printer` (direct bluetooth/network).
Feedback Settings
- Feedback Type: Dropdown to select interaction feedback (Vibrate, Beep, or None).
Import / Export
- Restore Data: Restore database from a backup file (Disabled in Demo).
- Import Books from Excel: Navigates to `ExcelImportScreen` (Disabled in Demo).
- Export Data to Excel: Exports current data to an Excel file.
- Backup Data: Creates a full backup of the system (Disabled in Demo).
Logout
- Logout Button: Ends the current session and returns to login.
Interactions
- Modify Details: Edit text fields. Changes are staged until saved.
- Save Settings: Tap Save Settings button.
- Persists changes to local storage or API.
- Shows success/error snackbar.
- Navigate to Sub-screens:
- Tap Printer Configuration -> Opens Printer Config.
- Tap Import Books -> Opens Excel Import.
- Data Actions:
- Tap Export -> Generates Excel file and opens share dialog.
- Tap Backup -> Generates backup file and opens share dialog.
- Tap Restore -> Prompts for file selection and confirmation, then replaces data.
- Logout: Tap Logout, confirm dialog -> Redirects to Login.
