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anilpai/klarna.js

Created March 30, 2021 07:06
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Find Duplicate transactions
Raw
klarna.js
function findDuplicateTransactions (transactions = []) {
transactions.sort((a, b) => new Date(a.time) - new Date(b.time));
let duplicates = []
let match = []
let src, dst;
while(transactions.length > 1){
src = 0
dst = 1
match = [src]
while ((new Date(transactions[dst].time) - new Date(transactions[src].time)) <= 60000 && src < transactions.length -1){
if(compare_equal(transactions[src], transactions[dst])){
match.push(dst)
src = dst
}
dst += 1
if (dst === transactions.length){
break
}
}
if (match.length > 1){
let temp = []
while(match.length){
let item = transactions.splice(match.pop(), 1)
temp.unshift(item[0])
}
duplicates.push(temp)
match = []
} else{
transactions.shift()
}
if (transactions.length == 1){
break;
}
}
return duplicates
}
function compare_equal(t1,t2){
if (t1.sourceAccount === t2.sourceAccount && t1.targetAccount === t2.targetAccount && t1.amount === t2.amount && t1.category === t2.category){
return true;
}else{
return false;
}
}
const transactions = [
{
id: 3,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:34:30.000Z'
},
{
id: 1,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:33:00.000Z'
},
{
id: 6,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'other',
time: '2018-03-02T10:33:05.000Z'
},
{
id: 4,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:36:00.000Z'
},
{
id: 2,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:33:50.000Z'
},
{
id: 5,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'other',
time: '2018-03-02T10:33:00.000Z'
}
];
const duplicates = [
[
{
id: 1,
sourceAccount: "A",
targetAccount: "B",
amount: 100,
category: "eating_out",
time: "2018-03-02T10:33:00.000Z"
},
{
id: 2,
sourceAccount: "A",
targetAccount: "B",
amount: 100,
category: "eating_out",
time: "2018-03-02T10:33:50.000Z"
},
{
id: 3,
sourceAccount: "A",
targetAccount: "B",
amount: 100,
category: "eating_out",
time: "2018-03-02T10:34:30.000Z"
}
],
[
{
id: 5,
sourceAccount: "A",
targetAccount: "C",
amount: 250,
category: "other",
time: "2018-03-02T10:33:00.000Z"
},
{
id: 6,
sourceAccount: "A",
targetAccount: "C",
amount: 250,
category: "other",
time: "2018-03-02T10:33:05.000Z"
}
]
];
const transactions2 = [ { id: 6,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -250,
category: 'other',
time: '2018-03-01T22:16:40.000Z' },
{ id: 201,
sourceAccount: 'company_x',
targetAccount: 'my_account',
amount: 10000,
category: 'pension_benefits',
time: '2018-02-25T08:00:00.000Z' },
{ id: 22,
sourceAccount: 'my_account',
targetAccount: 'restaurant',
amount: -970,
category: 'eating_out',
time: '2018-04-17T19:52:46.000Z' },
{ id: 101,
sourceAccount: 'company_x',
targetAccount: 'my_account',
amount: 240,
category: 'salary',
time: '2018-02-25T08:00:30.000Z' },
{ id: 35,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:58:06.000Z' },
{ id: 24,
sourceAccount: 'my_account',
targetAccount: 'fitness_club',
amount: -610,
category: 'other',
time: '2018-04-22T11:54:10.000Z' },
{ id: 3,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1000,
category: 'groceries',
time: '2018-03-01T17:28:32.000Z' },
{ id: 37,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1690,
category: 'groceries',
time: '2018-05-10T18:14:10.000Z' },
{ id: 32,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:56:09.000Z' },
{ id: 12,
sourceAccount: 'my_account',
targetAccount: 'bowling_place',
amount: -600,
category: 'other',
time: '2018-03-05T21:12:10.000Z' },
{ id: 11,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1540,
category: 'groceries',
time: '2018-03-05T16:24:31.000Z' },
{ id: 14,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:24:40.000Z' },
{ id: 18,
sourceAccount: 'my_account',
targetAccount: 'cinema',
amount: -580,
category: 'other',
time: '2018-04-05T20:01:18.000Z' },
{ id: 40,
sourceAccount: 'my_account',
targetAccount: 'fitness_club',
amount: -610,
category: 'other',
time: '2018-05-22T11:54:10.000Z' },
{ id: 9,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-03-04T07:14:20.000Z' },
{ id: 4,
sourceAccount: 'my_account',
targetAccount: 'cinema',
amount: -330,
category: 'other',
time: '2018-03-01T20:10:15.000Z' },
{ id: 28,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1870,
category: 'groceries',
time: '2018-05-05T10:24:30.000Z' },
{ id: 15,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:25:10.000Z' },
{ id: 25,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -850,
category: 'groceries',
time: '2018-04-20T18:51:31.000Z' },
{ id: 31,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:55:10.000Z' },
{ id: 102,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -250,
category: 'other',
time: '2018-03-01T22:16:50.000Z' },
{ id: 19,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-04-07T09:54:21.000Z' },
{ id: 42,
sourceAccount: 'my_account',
targetAccount: 'cinema',
amount: -450,
category: 'other',
time: '2018-05-23T19:13:10.000Z' },
{ id: 30,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:54:21.000Z' },
{ id: 36,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -1650,
category: 'other',
time: '2018-05-08T21:36:41.000Z' },
{ id: 5,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-03-02T09:25:20.000Z' },
{ id: 20,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -1650,
category: 'other',
time: '2018-04-08T21:36:41.000Z' },
{ id: 41,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -850,
category: 'groceries',
time: '2018-05-20T18:51:31.000Z' },
{ id: 39,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -70,
category: 'eating_out',
time: '2018-05-15T09:12:20.000Z' },
{ id: 17,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1870,
category: 'groceries',
time: '2018-04-05T10:24:30.000Z' },
{ id: 7,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -160,
category: 'groceries',
time: '2018-03-02T13:14:00.000Z' },
{ id: 27,
sourceAccount: 'company_x',
targetAccount: 'my_account',
amount: 10000,
category: 'salary',
time: '2018-04-25T08:00:00.000Z' },
{ id: 29,
sourceAccount: 'my_account',
targetAccount: 'cinema',
amount: -580,
category: 'other',
time: '2018-05-05T20:01:18.000Z' },
{ id: 38,
sourceAccount: 'my_account',
targetAccount: 'restaurant',
amount: -970,
category: 'eating_out',
time: '2018-05-17T19:52:46.000Z' },
{ id: 21,
sourceAccount: 'my_account',
targetAccount: 'supermarket',
amount: -1690,
category: 'groceries',
time: '2018-04-10T18:14:10.000Z' },
{ id: 10,
sourceAccount: 'my_account',
targetAccount: 'fitness_club',
amount: -560,
category: 'other',
time: '2018-03-04T12:54:10.000Z' },
{ id: 26,
sourceAccount: 'my_account',
targetAccount: 'cinema',
amount: -450,
category: 'other',
time: '2018-04-23T19:13:10.000Z' },
{ id: 8,
sourceAccount: 'my_account',
targetAccount: 'restaurant',
amount: -670,
category: 'eating_out',
time: '2018-03-02T18:54:45.000Z' },
{ id: 13,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:24:00.000Z' },
{ id: 33,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:57:05.000Z' },
{ id: 1,
sourceAccount: 'company_x',
targetAccount: 'my_account',
amount: 10000,
category: 'salary',
time: '2018-02-25T08:00:00.000Z' },
{ id: 23,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -70,
category: 'eating_out',
time: '2018-04-15T09:12:20.000Z' },
{ id: 2,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-03-01T12:34:00.000Z' },
{ id: 16,
sourceAccount: 'company_x',
targetAccount: 'my_account',
amount: 10000,
category: 'salary',
time: '2018-03-25T08:10:00.000Z' } ]
const duplicates2 = [ [ { id: 6,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -250,
category: 'other',
time: '2018-03-01T22:16:40.000Z' },
{ id: 102,
sourceAccount: 'my_account',
targetAccount: 'internet_shop',
amount: -250,
category: 'other',
time: '2018-03-01T22:16:50.000Z' } ],
[ { id: 13,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:24:00.000Z' },
{ id: 14,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:24:40.000Z' },
{ id: 15,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -50,
category: 'eating_out',
time: '2018-04-01T10:25:10.000Z' } ],
[ { id: 30,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:54:21.000Z' },
{ id: 31,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:55:10.000Z' },
{ id: 32,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:56:09.000Z' },
{ id: 33,
sourceAccount: 'my_account',
targetAccount: 'coffee_shop',
amount: -90,
category: 'eating_out',
time: '2018-05-07T09:57:05.000Z' } ] ]
const transactions3 = [
{
id: 3,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:34:30.000Z'
},
{
id: 7,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'coffee_shop',
time: '2018-03-02T10:34:30.000Z'
},
{
id: 1,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:33:00.000Z'
},
{
id: 6,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'coffee_shop',
time: '2018-03-02T10:34:05.000Z'
},
{
id: 4,
sourceAccount: 'A',
targetAccount: 'B',
amount: 100,
category: 'eating_out',
time: '2018-03-02T10:36:00.000Z'
},
{
id: 2,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'eating_out',
time: '2018-03-02T10:33:50.000Z'
},
{
id: 5,
sourceAccount: 'A',
targetAccount: 'C',
amount: 250,
category: 'coffee_shop',
time: '2018-03-02T10:35:00.000Z'
}
];
console.log(findDuplicateTransactions(transactions3))
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