finnow/finnow-api/source/util/validation/transaction.d

79 lines
3.3 KiB
D

module util.validation.transaction;
import handy_http_primitives;
import std.array;
import std.datetime;
import util.validation.common;
import transaction.dto;
import transaction.data;
import account.data;
// class AtLeastOneLinkedAccountRule : ValidationRule!AddTransactionPayload {
// Optional!ValidationError validate(in AddTransactionPayload payload) {
// if (!payload.creditedAccountId && !payload.debitedAccountId) {
// return ValidationError("creditedAccountId", "At least one account must be linked.").toOptional();
// }
// return Optional!ValidationError.empty();
// }
// }
void validateTransactionPayload(
TransactionVendorRepository vendorRepo,
TransactionCategoryRepository categoryRepo,
AccountRepository accountRepo,
in AddTransactionPayload payload
) {
if (!payload.creditedAccountId && !payload.debitedAccountId) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "At least one account must be linked.");
}
if (
payload.creditedAccountId &&
payload.debitedAccountId &&
payload.creditedAccountId.value == payload.debitedAccountId.value
) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Cannot link the same account as both credit and debit.");
}
if (payload.amount == 0) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Amount should be greater than 0.");
}
SysTime now = Clock.currTime(UTC());
SysTime timestamp = validateTimestampFormat(payload.timestamp);
if (timestamp > now) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Cannot create transaction in the future.");
}
if (payload.vendorId && !vendorRepo.existsById(payload.vendorId.value)) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Vendor doesn't exist.");
}
if (payload.categoryId && !categoryRepo.existsById(payload.categoryId.value)) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Category doesn't exist.");
}
if (payload.creditedAccountId && !accountRepo.existsById(payload.creditedAccountId.value)) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Credited account doesn't exist.");
}
if (payload.debitedAccountId && !accountRepo.existsById(payload.debitedAccountId.value)) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Debited account doesn't exist.");
}
validateTags(payload.tags);
if (payload.lineItems.length > 0) {
long lineItemsTotal = 0;
foreach (lineItem; payload.lineItems) {
if (lineItem.categoryId && !categoryRepo.existsById(lineItem.categoryId.value)) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Line item's category doesn't exist.");
}
if (lineItem.quantity == 0) {
throw new HttpStatusException(HttpStatus.BAD_REQUEST, "Line item's quantity should greater than zero.");
}
for (ulong i = 0; i < lineItem.quantity; i++) {
lineItemsTotal += lineItem.valuePerItem;
}
}
if (lineItemsTotal != payload.amount) {
throw new HttpStatusException(
HttpStatus.BAD_REQUEST,
"Total of all line items doesn't equal the transaction's total."
);
}
}
}