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Format attofil #315

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merged 3 commits into from
Feb 21, 2024
Merged

Format attofil #315

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1b374ed
Update FilecoinNumber.ts
navFooh Feb 21, 2024
4953a5f
Update FilecoinNumber.ts
navFooh Feb 21, 2024
56f73a0
Update FilecoinNumber.ts
navFooh Feb 21, 2024
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22 changes: 18 additions & 4 deletions packages/filecoin-number/src/FilecoinNumber.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,21 @@ export class FilecoinNumber extends BigNumber {
return Buffer.concat([Buffer.from('00', 'hex'), buffer])
}

/**
* Expresses this FilecoinNumber as a formatted AttoFIL string
*/
formatAttoFil(
options?: Pick<FilecoinFormatOptions, 'addUnit' | 'prefix'>
): string {
const addUnit = options?.addUnit ?? true
return this.shiftedBy(18).toFormat(0, BigNumber.ROUND_DOWN, {
groupSeparator: ',',
groupSize: 3,
suffix: addUnit ? ` ${this.getDenomUnit('attofil')}` : '',
prefix: options?.prefix ?? ''
})
}

/**
* Expresses this FilecoinNumber as a balance string
*/
Expand All @@ -196,7 +211,6 @@ export class FilecoinNumber extends BigNumber {
const decimals = options?.decimals ?? 3
const padZeros = options?.padZeros ?? false
const addUnit = options?.addUnit ?? true
const prefix = options?.prefix

const toFormat = (value: BigNumber, format: BigNumber.Format): string =>
padZeros
Expand All @@ -209,7 +223,7 @@ export class FilecoinNumber extends BigNumber {
groupSeparator: ',',
groupSize: 3,
suffix: addUnit ? ` ${this.displayUnit}` : '',
prefix
prefix: options?.prefix ?? ''
}

// When not rounding, it doesn't make sense to truncate either.
Expand All @@ -225,12 +239,12 @@ export class FilecoinNumber extends BigNumber {
if (decimals === 0) {
// We rounded to 0 decimals, so we show
// "< 0" for negative and "> 0" for positive values
const prefix = isNegative ? '< ' : '> '
const prefix = `${isNegative ? '<' : '>'} ${format.prefix}`
return toFormat(rounded, { ...format, prefix })
} else {
// We rounded to 1+ decimals, so we show
// "> -0.01" for negative and "< 0.01" for positive values
const prefix = isNegative ? '> ' : '< '
const prefix = `${isNegative ? '>' : '<'} ${format.prefix}`
const roundedUp = this.dp(decimals, BigNumber.ROUND_UP)
return toFormat(roundedUp, { ...format, prefix })
}
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