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Json #1

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4c3a845
Dodgy edit
DHTSoftwire Jul 28, 2016
18dc04d
Markups made
DHTSoftwire Jul 28, 2016
d511210
now accepts json
DHTSoftwire Jul 28, 2016
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155 changes: 87 additions & 68 deletions SoftBankNew.ts
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Original file line number Diff line number Diff line change
@@ -1,99 +1,118 @@
interface Account { // Interface for each person's account
net :number;
var readlineSync = require('readline-sync')
var winston = require('winston');
var lines = require('./Transactions2013.json');

// LOGGING:

winston.level = 'debug';
winston.add(winston.transports.File, {filename: 'SoftBankNew2Problems.log' });
winston.remove(winston.transports.Console);

// ITNERFACES:

// Interface for each person's account
interface Account {
balance :number;
transactions :Transaction[];
}

interface Transaction { // Interface for all the transactions of each person.
credit :boolean;
amount :number
// Interface for all the transactions of each person.
interface Transaction {
from :string; //Other person involved in the transaction
to: string;
amount :number;
date :string;
narrative :string;
}

var peopleAccounts = {} // Dictionary of people, with their names as the keys to access their accounts
// METHODS:

// Input the file and parse it into an array of lines:
var fs = require('fs');
var text = fs.readFileSync('Transactions2014.csv','utf8',(err,data) => {
if err throw err;
return data;
})
var lines = text.split('\r\n');

// Process each line to produce all the accounts and update their transactions accordingly
var len = lines.length;
for (var i=1; i<len-1; i++) { // From second line to second last. There is a header line first, and an empty line last.
var details = lines[i].split(',');
/\b[1-2][0-9][0-9][0-9]-(0[1-9]|1[0-2])-(0[1-9]|1[1-9]|2[1-9]|30|31)T00-00-00\b/

// Parses the transactionLine and alter both the creditor and the debtor
function processTransaction(transactionLine: string) :void {
var details = transactionLine.split(',');
var dateString = details[0]
var fromPerson = details[1];
if (!peopleAccounts.hasOwnProperty(fromPerson)) {
peopleAccounts[fromPerson] = {net: 0.0, transactions: []};
var toPerson = details[2];
var narr = details[3];
var amt = parseFloat(details[4]);
if (isNaN(amt)) {
winston.log('error', 'You have entered an invalid trasaction, becuase you have entered ' + details[4] + ' as the amount, which is not valid. This transaction will not be recorded.');
} else if (!/\b[1-2][0-9][0-9][0-9]-(0[1-9]|1[0-2])-(0[1-9]|1[1-9]|2[1-9]|30|31)T00:00:00\b/.test(dateString)) {
winston.log('error', 'You have entered an invalid trasaction, becuase you have entered ' + dateString + ' as the date, which is not a valid format. This transaction will not be recorded. For future reference, please enter the date in a dd/mm/yyyy format');
} else {
var thisTransaction = { from: fromPerson, to: toPerson, amount: amt, date: dateString, narrative: narr};
alterAccount(toPerson,amt,thisTransaction); // Add credit to 'toPerson'
alterAccount(fromPerson,-1*amt,thisTransaction); // Remove credit from 'fromPerson'
}
peopleAccounts[fromPerson].net -= parseFloat(details[4]);
peopleAccounts[fromPerson].transactions.push({
credit: false, amount: parseFloat(details[4]), date: details[0], narrative: details[3]
})
};

var to = details[2];
if (!peopleAccounts.hasOwnProperty(to)) {
peopleAccounts[to] = {net: 0.0, transactions: []};
// Function updates an account with the given transaction details
function alterAccount(accountPerson :string, amt :number, trans :Transaction) :void {
if(!accounts.hasOwnProperty(accountPerson)) {
accounts[accountPerson] = {balance: 0.0, transactions: []};
}
peopleAccounts[to].net += parseFloat(details[4]);
peopleAccounts[to].transactions.push({
credit: true, amount: parseFloat(details[4]), date: details[0], narrative: details[3]
})
}
accounts[accountPerson].balance += amt;
accounts[accountPerson].transactions.push(trans);
};

function printPeopleBalances { // Prints everyone's account balances
for (var person in peopleAccounts) {
console.log(person + ': ' + peopleAccounts[person].net);
// Prints everyone's account balances
function printPeopleBalances() :void {
for (var person in accounts) {
console.log(person + ': ' + accounts[person].balance);
}
}
};

function printPersonsTransactions(person :string) {// Prints all the transactions for a given person
if (peopleAccounts.hasOwnProperty(person)) {
// Prints all the transactions for a given person
function printPersonsTransactions(person :string) :void {
if (accounts.hasOwnProperty(person)) {
console.log(person + ':');
var pT = peopleAccounts[person].transactions;
var pTlen = pT.length;
for (var i=0; i<pTlen; i++) {
console.log('Balance is: ' + accounts[person].balance + '.');
var pT = accounts[person].transactions;
for (var i=0; i<pT.length; i++) {
var transaction = pT[i];
if (pT[i].credit) {
console.log('Credit of ' + transaction.amount + ', dated ' + transaction.date + ', for reason: ' + transaction.narrative + '.');
} else {
console.log('Debit of ' + transaction.amount + ', dated ' + transaction.date + ', for reason: ' + transaction.narrative + '.');
}
console.log('From ' + transaction.from + ' to ' + transaction.to + ', dated ' + transaction.date + ', totalling ' + transaction.amount + ' for reason: ' + transaction.narrative + '.');
}
} else {
console.log('Person not found.');
}
}
console.log(peopleAccounts['Dan W']);

const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
};

// Ask the user for command line instructions
function prompting() {
console.log("Prompting");
var mString = "Enter a command. 'List_All' to show everyone's balances. 'List_Person' to list the transactions of a person, chosen later through a menu.";
rl.question(mString, (command) => {
switch(command) {
// Offers command line input for the program
function commandLineInstructions() :void {
while (command != 'Quit') {
var command = readlineSync.question("Enter a command. 'List_All' to show everyone's balances. 'List_Person' to list the transactions of a person, chosen later through a menu. 'Quit' to quit: ");
console.log('You command was: ' + command);
switch (command) {
case 'List_All':
printPeopleBalances();
console.log("Printed");
console.log('Done!');
break;
case 'List_Person':
rl.question('Whose account do you wish to see?', (name) => {
printPersonsTransactions(name);
});
var personName = readlineSync.question('Whose Account do you wish to see: ');
printPersonsTransactions(personName);
console.log('Done!');
break;
case 'Quit':
console.log('Quit successful');
break;
default:
console.log('Sorry, invalid input. Please try again.');
}
prompting();
});
}
}
};

// Runs the program
function run() :void {
for (var i=1; i<lines.length; i++) {
var t = lines[i];
processTransaction([t.Date,t.FromAccount,t.ToAccount,t.Narrative,t.Amount].join(','));
};
commandLineInstructions();
};

// SCRIPT:

prompting();
var accounts = {}; // Dictionary of people, with their names as the keys to access their accounts
run();