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110 changes: 80 additions & 30 deletions dirty-control-structures.js
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Original file line number Diff line number Diff line change
Expand Up @@ -36,41 +36,91 @@ function main() {
}

function processTransactions(transactions) {
if (transactions && transactions.length > 0) {
if (isEmpty(transactions)) {
showErrorMessage('No transaction provided');
return;
}
for (const transaction of transactions) {
if (transaction.type === 'PAYMENT') {
if (transaction.status === 'OPEN') {
if (transaction.method === 'CREDIT_CARD') {
processCreditCardPayment(transaction);
} else if (transaction.method === 'PAYPAL') {
processPayPalPayment(transaction);
} else if (transaction.method === 'PLAN') {
processPlanPayment(transaction);
}
} else {
console.log('Invalid transaction type!');
}
} else if (transaction.type === 'REFUND') {
if (transaction.status === 'OPEN') {
if (transaction.method === 'CREDIT_CARD') {
processCreditCardRefund(transaction);
} else if (transaction.method === 'PAYPAL') {
processPayPalRefund(transaction);
} else if (transaction.method === 'PLAN') {
processPlanRefund(transaction);
}
} else {
console.log('Invalid transaction type!', transaction);
}
} else {
console.log('Invalid transaction type!', transaction);
}
processTransaction(transaction);
}

}



function processTransaction(transaction){
if (!isOpen(transaction)) {
showErrorMessage('No transaction provided');
return;
}
if (isPayment(transaction)) {
processPayment(transaction)
}
else if (isRefund(transaction)) {
processRefund(transaction)
} else {
console.log('No transactions provided!');
showErrorMessage('Invalid transaction type!', transaction);
}
}

function usesCreditCard(transaction){
transaction.method === 'CREDIT_CARD'
}

function usesPaypal(transaction){
transaction.method === 'PAYPAL'
}

function usesPlan(transaction){
transaction.method === 'PLAN'
}

function isRefund(){
return transaction.type === 'REFUND';
}

function isPayment(){
return transaction.type === 'PAYMENT';
}

function isOpen(transaction){
return transaction.status == 'OPEN';
}

function processPayment(transaction){
if (transaction.method === 'CREDIT_CARD') {
processCreditCardPayment(transaction);
} else if (transaction.method === 'PAYPAL') {
processPayPalPayment(transaction);
} else if (transaction.method === 'PLAN') {
processPlanPayment(transaction);
}
}

function processRefund(transaction){
if (transaction.method === 'CREDIT_CARD') {
processCreditCardRefund(transaction);
} else if (transaction.method === 'PAYPAL') {
processPayPalRefund(transaction);
} else if (transaction.method === 'PLAN') {
processPlanRefund(transaction);
}
}


function showErrorMessage(message, item){
console.log('Invalid transaction type!', transaction);
if(item){
console.log(item);
}
}

function isEmpty(transaction){
return !transactions || transactions.length == 0
}



function processCreditCardPayment(transaction) {
console.log(
'Processing credit card payment for amount: ' + transaction.amount
Expand All @@ -97,4 +147,4 @@ function processPlanPayment(transaction) {

function processPlanRefund(transaction) {
console.log('Processing plan refund for amount: ' + transaction.amount);
}
}