Add Late Fee Functionality for Invoices

[sweep-ai]

This pull request was created by Sweep to resolve the following request by @curtisdelicata:

Description: Add automatic calculation of late fees for overdue invoices.

Tasks:
Modify Invoice model to include late fee settings.
Implement automated calculation of late fees.
Display late fees on overdue invoices.
Acceptance Criteria:
Late fees are calculated and applied to overdue invoices.
Users can configure late fee settings per invoice.

Continue chatting at https://sweep-chat-demo.vercel.app/c/adf9001e-104c-4862-a1b8-4360819185e8.

Purpose

Implement a comprehensive late fee system for invoices to automatically calculate and track additional charges for overdue payments, improving financial management and incentivizing timely payments.

Description

This pull request introduces a robust late fee mechanism for invoices with the following key features:

• Added new database columns to support late fee calculations
• Implemented methods in the Invoice model to calculate and manage late fees
• Created a console command to automatically calculate late fees for overdue invoices
• Updated Filament resource form to include late fee configuration options
• Added scheduled task to run daily late fee calculations

The new functionality allows businesses to:

• Set a late fee percentage
• Define a grace period for payments
• Automatically calculate late fees based on invoice due dates
• Track and apply late fee amounts to outstanding invoices

Summary

• Added migration 2024_02_24_000000_add_late_fee_columns_to_invoices.php with new invoice columns
• Updated app/Models/Invoice.php with late fee calculation methods
• Created app/Console/Commands/CalculateLateFees.php for automated late fee processing
• Modified app/Filament/App/Resources/InvoiceResource.php to include late fee configuration
• Updated app/Console/Kernel.php to schedule daily late fee calculations
• New methods added:
  • calculateLateFee()
  • isOverdue()
  • getTotalWithTaxAndLateFees()