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Split unevenly by amount

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This commit is contained in:
Sebastien Castiel
2024-01-08 12:03:53 -05:00
parent c9a92408d7
commit 6ff54b6d21
2 changed files with 158 additions and 119 deletions
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36
src/lib/schemas.ts
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@@ -70,13 +70,24 @@ export const expenseFormSchema = z
.array(
z.object({
participant: z.string(),
shares: z.number().int(),
shares: z.union([
z.number(),
z.string().transform((value, ctx) => {
const valueAsNumber = Number(value)
if (Number.isNaN(valueAsNumber))
ctx.addIssue({
code: z.ZodIssueCode.custom,
message: 'Invalid number.',
})
return Math.round(valueAsNumber * 100)
}),
]),
}),
)
.min(1, 'The expense must be paid for at least one participant.')
.superRefine((paidFor, ctx) => {
let sum = 0
for (const { participant, shares } of paidFor) {
for (const { shares } of paidFor) {
sum += shares
if (shares < 1) {
ctx.addIssue({
@@ -95,20 +106,21 @@ export const expenseFormSchema = z
})
.superRefine((expense, ctx) => {
let sum = 0
for (const { participant, shares } of expense.paidFor) {
sum += shares
for (const { shares } of expense.paidFor) {
sum +=
typeof shares === 'number' ? shares : Math.round(Number(shares) * 100)
}
switch (expense.splitMode) {
case 'EVENLY':
break // noop
case 'BY_SHARES':
break // noop
case 'BY_AMOUNT':
case 'BY_AMOUNT': {
if (sum !== expense.amount) {
const detail =
sum < expense.amount
? `${expense.amount - sum} missing`
: `${sum - expense.amount} surplus`
? `${((expense.amount - sum) / 100).toFixed(2)} missing`
: `${((sum - expense.amount) / 100).toFixed(2)} surplus`
ctx.addIssue({
code: z.ZodIssueCode.custom,
message: `Sum of amounts must equal the expense amount (${detail}).`,
@@ -116,10 +128,13 @@ export const expenseFormSchema = z
})
}
break
case 'BY_PERCENTAGE':
if (sum !== 100) {
}
case 'BY_PERCENTAGE': {
if (sum !== 10000) {
const detail =
sum < 100 ? `${100 - sum}% missing` : `${sum - 100}% surplus`
sum < 10000
? `${((10000 - sum) / 100).toFixed(0)}% missing`
: `${((sum - 10000) / 100).toFixed(0)}% surplus`
ctx.addIssue({
code: z.ZodIssueCode.custom,
message: `Sum of percentages must equal 100 (${detail})`,
@@ -127,6 +142,7 @@ export const expenseFormSchema = z
})
}
break
}
}
})