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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 1x 1x 54x 83x 20x 86x 3x 3x 3x | import { Value } from './Value';
/**
* Represents bitcoin amount that can be converted to or from multiple
* formats.
*
* The key difference between Amount and Value, is Amount can be negative
*
* Value should be used for Bitcoin transactions, Amount should only be used
* for UI display, i.e. PnL
*/
export class Amount extends Value {
/**
* Creates a value object from amount in bitcoin, eg: 1.12345678
* @param num
*/
public static fromBitcoin(num: number): Amount {
return Amount.fromSats(Math.round(num * 1e8));
}
/**
* Creates a value instance from value in satoshis where 1 satoshis
* equates to 0.00000001 bitcoin.
* @param num
*/
public static fromSats(num: bigint | number): Amount {
return new Amount(BigInt(num) * BigInt(1e12));
}
/**
* Creates a value instance from amount
* @param value
* @returns
*/
public static fromValue(value: Value): Amount {
return Amount.fromSats(value.sats);
}
/**
* Gets the value in bitcoin
*/
public get bitcoin(): number {
return Number(this.sats) / 1e8;
}
public constructor(picoSats: bigint) {
super(picoSats);
}
/**
* Modifies the current instance by subtracting the other value
* from our existing value. Since Amount is signed, the value can
* be less than zero.
* @param other
*/
public sub(other: Value): this {
this._picoSats -= other.psats;
return this;
}
/**
* Subtracts supplied value from the current value and returns a new
* value instance. Since Amount is signed, the value can
* be less than zero.
* @param other
*/
public subn(other: Value): Amount {
return new Amount(this._picoSats - other.psats);
}
}
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