Payout calculation with chargeback reserve

This project is a simple C# program that calculates how to handle payouts while keeping a chargeback reserve. It ensures that enough money is set aside (reserve, aka deposit) to handle chargebacks, and the rest can be paid out.

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📖 How It Works

1. What is a chargeback reserve?
   A chargeback reserve is money set aside to handle disputes or refunds. This means not all money from transactions can be paid out immediately.

2. How does it work?

• The newest transactions are used first to meet the reserv
• Older transactions are paid out, but only after the reserve is covered
• Transactions are never split. If one transaction is needed for the reserve, it is kept whole
• If all transactions are needed for the reserve, no payout is made

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🧮 Examples

Example 1

• Transactions:
  • $100
  • $200
  • $300
• Reserve: $400

Result:

• Reserve: $300 (newest) + $100 (next newest) = $400
• Payout: $200

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Example 2

• Transactions:
  • $50
  • $150
  • $250
• Reserve: $250

Result:

• Reserve: $250
• Payout: $200 ($50 + $150)

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Example 3

• Transactions:
  • $200
  • $300
  • $400
• Reserve: $900

Result:

• Reserve: $200 + $300 + $400 = $900
• Payout: None

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🚀 How to Use

1. Steps

• Clone this project:

  git clone https://github.com/danradic/payouts-with-chargeback-reserve.git

• Open it in your editor and run the program.

2. Example Code

Here’s how to use the program:

var transactions = new List<Transaction>
{
    new Transaction { Amount = 100m, CreatedUtc = DateTime.Parse("2024-11-20 10:00:00") },
    new Transaction { Amount = 200m, CreatedUtc = DateTime.Parse("2024-11-20 11:00:00") },
    new Transaction { Amount = 300m, CreatedUtc = DateTime.Parse("2024-11-20 12:00:00") }
};

decimal chargebackReserve = 400m;
var result = TransactionProcessor.CalculatePayoutWithReserve(transactions, chargebackReserve);

Console.WriteLine("Reserved Transactions:");
foreach (var t in result.ReservedTransactions)
    Console.WriteLine($"Amount: {t.Amount}, Created: {t.CreatedUtc}");

Console.WriteLine("\nPayout Transactions:");
foreach (var t in result.PayoutTransactions)
    Console.WriteLine($"Amount: {t.Amount}, Created: {t.CreatedUtc}");