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annotate Simoleon/Jobs/CurrenciesController.swift @ 154:8afba86ab8dd

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Refactor code
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Wed, 25 Aug 2021 10:43:12 +0100
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154
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1 //
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2 // GetCompatibleCurrencies.swift
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3 // Simoleon
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4 //
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5 // Created by Dennis Concepción Martín on 24/8/21.
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6 //
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7
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8 import Foundation
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9
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10 class CurrenciesController {
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11 let fileController = FileController()
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12
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13 func get(currenciesCompatibleWith currencySymbol: String?, currencies: Bool?) -> [String] {
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14 // If currencies not false -> return all currencies
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15 guard currencies == false else { return allCurrencies() }
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16
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17 // This block won't be executed if the previous check fails
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18 return compatibleCurrencies(with: currencySymbol!)
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19 }
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20
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21 /*
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22 * Input all currencies supported by vendor
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23 * Return individual currency symbols without duplicates
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24 */
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25 private func allCurrencies() -> [String] {
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26 let currencyPairsSupported: [String] = try! fileController.read(json: "CurrencyPairsSupported.json")
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27
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28 var currencies = Set<String>()
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29 for currencyPairSupported in currencyPairsSupported {
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30 let currency = currencyPairSupported.components(separatedBy: "/")[0]
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31 currencies.insert(currency)
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32 }
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33
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34 return Array(currencies)
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35 }
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36
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37 /*
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38 * Given the first symbol of the currency pair
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39 * Return all compatible symbols
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40 */
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41 private func compatibleCurrencies(with currencySymbol: String) -> [String] {
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42 let currencyPairsSupported: [String] = try! fileController.read(json: "CurrencyPairsSupported.json")
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43
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44 var currencies = [String]()
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45 for currencyPairSupported in currencyPairsSupported {
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46 if currencyPairSupported.hasPrefix(currencySymbol) {
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47 let compatibleCurrency = currencyPairSupported.components(separatedBy: "/")[1]
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48 currencies.append(compatibleCurrency)
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49 }
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50 }
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51
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52 return currencies
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53 }
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54 }