Struct Money 

pub struct Money { /* private fields */ }

Value Object: Money

Represents a monetary amount with currency in the paywall system. Amounts are stored as the smallest unit (e.g., cents for USD, lamports for SOL).

Domain Rules:

• Amount must be non-negative
• Currency must be specified
• Immutable once created
• Operations preserve currency (cannot add USD to SOL)

This is a Value Object:

• Defined by its value, not identity
• Immutable
• Self-validating
• Compared by value equality

Implementations

impl Money

pub fn new(amount: u64, currency: Currency) -> Self

Create a new Money value from the smallest unit

Examples

use allsource_core::domain::value_objects::{Money, Currency};

// 50 cents
let money = Money::new(50, Currency::USD);
assert_eq!(money.amount(), 50);
assert_eq!(money.currency(), Currency::USD);

pub fn from_decimal(decimal: f64, currency: Currency) -> Self

Create a Money value from a decimal amount

Examples

use allsource_core::domain::value_objects::{Money, Currency};

// $0.50
let money = Money::from_decimal(0.50, Currency::USD);
assert_eq!(money.amount(), 50);

pub fn zero(currency: Currency) -> Self

Create zero Money

pub fn usd_cents(cents: u64) -> Self

Create USD Money from cents

pub fn usd(dollars: f64) -> Self

Create USD Money from dollars (decimal)

pub fn usdc(amount: u64) -> Self

Create USDC Money from smallest unit

pub fn usdc_decimal(amount: f64) -> Self

Create USDC Money from decimal

pub fn lamports(lamports: u64) -> Self

Create SOL Money from lamports

pub fn sol(amount: f64) -> Self

Create SOL Money from decimal

pub fn amount(&self) -> u64

Get the amount in smallest unit

pub fn currency(&self) -> Currency

Get the currency

pub fn as_decimal(&self) -> f64

Get the amount as a decimal

pub fn is_zero(&self) -> bool

Check if this amount is zero

pub fn is_positive(&self) -> bool

Check if this amount is positive (non-zero)

pub fn at_least(&self, minimum: &Money) -> Result<()>

Check if this amount is at least a minimum value

pub fn percentage(&self, percent: u64) -> Self

Calculate a percentage of this amount

Examples

use allsource_core::domain::value_objects::{Money, Currency};

let money = Money::usd_cents(1000); // $10.00
let fee = money.percentage(7); // 7% = 70 cents
assert_eq!(fee.amount(), 70);

pub fn subtract_percentage(&self, percent: u64) -> Self

Subtract a percentage and return the remainder

Examples

use allsource_core::domain::value_objects::{Money, Currency};

let money = Money::usd_cents(1000); // $10.00
let after_fee = money.subtract_percentage(7); // 7% fee = $9.30
assert_eq!(after_fee.amount(), 930);

Trait Implementations

impl Add for Money

type Output = Result<Money, AllSourceError>

The resulting type after applying the + operator.

fn add(self, other: Money) -> Self::Output

Performs the + operation.

impl Clone for Money

fn clone(&self) -> Money

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Money

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Money

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Money

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Money

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Money

fn eq(&self, other: &Money) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Money

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for Money

type Output = Result<Money, AllSourceError>

The resulting type after applying the - operator.

fn sub(self, other: Money) -> Self::Output

Performs the - operation.

impl Copy for Money

impl Eq for Money

impl StructuralPartialEq for Money