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cache data completed (saving money added)
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@AmirMohammadFakhimi
AmirMohammadFakhimi committed Aug 12, 2022
1 parent f397d7f commit 3d3eb22
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Showing 5 changed files with 101 additions and 72 deletions.
6 changes: 4 additions & 2 deletions Shared/ContentView.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,12 @@ import Reachability
struct ContentView: View {
let abbreviations = ["BNB", "BTC", "DOGE", "XRP"].sorted()
@State var cryptocurrencies: [Cryptocurrency] = []
@State var unknownErrorAlert: Bool = false
@State var userMoney: Double = 5000

var body: some View {
TabView {
HomeView(abbreviations: abbreviations, cryptocurrencies: $cryptocurrencies)
HomeView(abbreviations: abbreviations, cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
.tabItem {
Image(systemName: "house")
Text("Home")
Expand All @@ -29,7 +31,7 @@ struct ContentView: View {
Text("Exchange Rate")
}

VirtualTradingView(cryptocurrencies: $cryptocurrencies, abbreviations: abbreviations)
VirtualTradingView(cryptocurrencies: $cryptocurrencies, abbreviations: abbreviations, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
.tabItem {
Image(systemName: "chart.line.uptrend.xyaxis")
Text("Virtual Trading")
Expand Down
55 changes: 21 additions & 34 deletions Shared/HomeView.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,9 @@ struct HomeView: View {
let abbreviations: [String]

@Binding var cryptocurrencies: [Cryptocurrency]
@Binding var userMoney: Double
@Binding var unknownErrorAlert: Bool

@State var unknownErrorAlert: Bool = false
@State var isSyncing: Bool = false
@State var favoriteCryptocurrencies: [Cryptocurrency] = []

Expand Down Expand Up @@ -149,7 +150,7 @@ struct HomeView: View {
let button = getStarButton(cryptocurrency: cryptocurrency, imageName: "star.fill") {
removeFromFavoriteCryptocarrencies(cryptocurrency)
cryptocurrency.isFavorite = false
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}

return BarChartView(data: ChartData(values: data), title: cryptocurrency.name, legend: "Daily", form: ChartForm.medium, cornerButton: button, valueSpecifier: "%.2f")
Expand Down Expand Up @@ -222,14 +223,14 @@ struct HomeView: View {
getStarButton(cryptocurrency: cryptocurrency, imageName: "star.fill") {
cryptocurrency.isFavorite = false
removeFromFavoriteCryptocarrencies(cryptocurrency)
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}
} else {
getStarButton(cryptocurrency: cryptocurrency, imageName: "star") {
cryptocurrency.isFavorite = true
favoriteCryptocurrencies.append(cryptocurrency)
favoriteCryptocurrencies = sortCryptocurrencyByName(favoriteCryptocurrencies)
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}
}
}
Expand All @@ -242,16 +243,6 @@ struct HomeView: View {
.coordinateSpace(name: "")
}

func doDummyOnCryptocurrencies() {
let dummy = Cryptocurrency(symbol: "", name: "", history: [], abbreviation: "")
cryptocurrencies.append(dummy)
cryptocurrencies.removeLast()

for cryptocurrency in cryptocurrencies {
writeData(cryptocurrency)
}
}

func getData() {
isSyncing = true

Expand Down Expand Up @@ -282,9 +273,7 @@ struct HomeView: View {
// directory available
try FileManager.default.createDirectory(at: directoryName, withIntermediateDirectories: true)

for abbreviation in abbreviations {
readData(abbreviation)
}
readAllData()
} catch {
// directory unavailable
do {
Expand All @@ -297,11 +286,6 @@ struct HomeView: View {
}
}

func getProjectDirectory() -> URL {
let projectDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
return projectDirectory.appendingPathComponent("cryptocurrencies", isDirectory: true)
}

func getCryptocurrencyData(_ abbreviation: String, _ apiKey: String) {
let request = NSMutableURLRequest(url: NSURL(string: "https://api.twelvedata.com/time_series?apikey=\(apiKey)&interval=1day&symbol=\(abbreviation)/USD&dp=2&format=JSON")! as URL,
cachePolicy: .useProtocolCachePolicy,
Expand Down Expand Up @@ -347,32 +331,34 @@ struct HomeView: View {
let cryptocurrency = Cryptocurrency(symbol: meta["symbol"]!, name: meta["currency_base"]!, history: history, abbreviation: abbreviation)
cryptocurrencies.append(cryptocurrency)
cryptocurrencies = sortCryptocurrencyByName(cryptocurrencies)
writeData(cryptocurrency)
writeData(cryptocurrency: cryptocurrency, unknownErrorAlert: $unknownErrorAlert)
} else {
cryptocurrency!.history = history
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}

} else {
runOutOfAPICredits = true
readAllData()
}
} else {
unknownErrorAlert = true
}
}

func writeData(_ cryptocurrency: Cryptocurrency) {
func readAllData() {
let directoryName = getProjectDirectory()

do {
let directoryName = getProjectDirectory()

let jsonEncoder = JSONEncoder()
let jsonData = try jsonEncoder.encode(cryptocurrency)
let json = String(data: jsonData, encoding: .utf8)
let cryptocurrencyDir = directoryName.appendingPathComponent("\(cryptocurrency.abbreviation).txt", isDirectory: true)
try json?.write(to: cryptocurrencyDir, atomically: true, encoding: String.Encoding.utf16)
let moneyDir = directoryName.appendingPathComponent("money.txt", isDirectory: true)
userMoney = Double(try String(contentsOf: moneyDir, encoding: .utf16))!
} catch {
unknownErrorAlert = true
}

for abbreviation in abbreviations {
readData(abbreviation)
}
}

func readData(_ cryptocurrencyAbbreviation: String) {
Expand All @@ -392,7 +378,7 @@ struct HomeView: View {
} else {
getCryptocurrency!.history = cryptocurrency.history
getCryptocurrency!.price = cryptocurrency.price
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}
} catch {
unknownErrorAlert = true
Expand All @@ -418,7 +404,7 @@ struct HomeView: View {
} else {
do {
try updatePrice(abbreviation, data!)
doDummyOnCryptocurrencies()
doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
} catch {
unknownErrorAlert = true
}
Expand All @@ -440,6 +426,7 @@ struct HomeView: View {
}
} else {
runOutOfAPICredits = true
readAllData()
}

} else {
Expand Down
51 changes: 47 additions & 4 deletions Shared/Utils.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -15,21 +15,21 @@ func getStarButton(cryptocurrency: Cryptocurrency, imageName: String, action: @e
Button(action: action) {
AnyView(Image(systemName: imageName)
.foregroundColor(Color.yellow)
.font(.system(size: 20, weight: .bold)))
.font(.system(size: 20, weight: .bold)))
}
}

func formatDouble(value: Double) -> String {
var formattedValue = String(format: "%.5f", value)

while formattedValue.last == "0" {
formattedValue.removeLast()
}

if formattedValue.last == "." {
formattedValue.removeLast()
}

return formattedValue
}

Expand Down Expand Up @@ -59,3 +59,46 @@ func getDefaultRectangle() -> some View {
.cornerRadius(20)
.shadow(color: Color.gray, radius: 6)
}

func getProjectDirectory() -> URL {
let projectDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
return projectDirectory.appendingPathComponent("cryptocurrencies", isDirectory: true)
}

func doDummyOnCryptocurrencies(cryptocurrencies: Binding<[Cryptocurrency]>, userMoney: Binding<Double>, unknownErrorAlert: Binding<Bool>) {
let dummy = Cryptocurrency(symbol: "", name: "", history: [], abbreviation: "")
cryptocurrencies.wrappedValue.append(dummy)
cryptocurrencies.wrappedValue.removeLast()

writeAllData(cryptocurrencies: cryptocurrencies, userMoney: userMoney, unknownErrorAlert: unknownErrorAlert)
}

func writeAllData(cryptocurrencies: Binding<[Cryptocurrency]>, userMoney: Binding<Double>, unknownErrorAlert: Binding<Bool>) {
let directoryName = getProjectDirectory()

do {
let moneyDir = directoryName.appendingPathComponent("money.txt", isDirectory: true)
try String(userMoney.wrappedValue).write(to: moneyDir, atomically: true, encoding: String.Encoding.utf16)
} catch {
unknownErrorAlert.wrappedValue = true
}


for cryptocurrency in cryptocurrencies.wrappedValue {
writeData(cryptocurrency: cryptocurrency, unknownErrorAlert: unknownErrorAlert)
}
}

func writeData(cryptocurrency: Cryptocurrency, unknownErrorAlert: Binding<Bool>) {
do {
let directoryName = getProjectDirectory()

let jsonEncoder = JSONEncoder()
let jsonData = try jsonEncoder.encode(cryptocurrency)
let json = String(data: jsonData, encoding: .utf8)
let cryptocurrencyDir = directoryName.appendingPathComponent("\(cryptocurrency.abbreviation).txt", isDirectory: true)
try json?.write(to: cryptocurrencyDir, atomically: true, encoding: String.Encoding.utf16)
} catch {
unknownErrorAlert.wrappedValue = true
}
}
10 changes: 9 additions & 1 deletion Shared/VirtualBuySellView.swift
View file
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@ import SwiftUI
struct VirtualBuySellView: View {
@State var cryptocurrency: Cryptocurrency
@Binding var userMoney: Double
@Binding var cryptocurrencies: [Cryptocurrency]
@Binding var unknownErrorAlert: Bool

@State private var enoughMoneyAlert = false
@State private var enoughCoinAlert = false
Expand All @@ -19,9 +21,11 @@ struct VirtualBuySellView: View {
@State private var dataDidNotLoadAlert = false
@State private var amount = ""

init(_ cryptocurrency: Cryptocurrency, _ userMoney: Binding<Double>) {
init(_ cryptocurrency: Cryptocurrency, _ userMoney: Binding<Double>, cryptocurrencies: Binding<[Cryptocurrency]>, unknownErrorAlert: Binding<Bool>) {
self.cryptocurrency = cryptocurrency
self._userMoney = userMoney
self._cryptocurrencies = cryptocurrencies
self._unknownErrorAlert = unknownErrorAlert
}

func format_double(value: Double) -> String {
Expand Down Expand Up @@ -72,6 +76,8 @@ struct VirtualBuySellView: View {
userMoney -= cost
cryptocurrency.virtualTradingAmount += Double(amount)!
buySuccessAlert = true

doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}

amount = ""
Expand Down Expand Up @@ -110,6 +116,8 @@ struct VirtualBuySellView: View {
userMoney += cost
cryptocurrency.virtualTradingAmount -= Double(amount)!
sellSuccessAlert = true

doDummyOnCryptocurrencies(cryptocurrencies: $cryptocurrencies, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}

amount = ""
Expand Down
51 changes: 20 additions & 31 deletions Shared/VirtualTradingView.swift
View file
Original file line number Diff line number Diff line change
Expand Up @@ -9,16 +9,19 @@ import SwiftUI


struct VirtualTradingView: View {
@State var userMoney: Double = 5000
@Binding var userMoney: Double

@Binding var cryptocurrencies: [Cryptocurrency]
@Binding var unknownErrorAlert: Bool
let abbreviations: [String]

@State var dataDidNotLoadAlert: Bool = false

init(cryptocurrencies: Binding<[Cryptocurrency]>, abbreviations: [String]) {
init(cryptocurrencies: Binding<[Cryptocurrency]>, abbreviations: [String], userMoney: Binding<Double>, unknownErrorAlert: Binding<Bool>) {
self._cryptocurrencies = cryptocurrencies
self.abbreviations = abbreviations
self._userMoney = userMoney
self._unknownErrorAlert = unknownErrorAlert
}

func showCoinBar(cryptocurrency: Cryptocurrency) -> some View {
Expand All @@ -27,7 +30,7 @@ struct VirtualTradingView: View {
.padding([.leading, .bottom, .trailing])
.overlay(
NavigationLink {
VirtualBuySellView(cryptocurrency, $userMoney)
VirtualBuySellView(cryptocurrency, $userMoney, cryptocurrencies: $cryptocurrencies, unknownErrorAlert: $unknownErrorAlert)
} label: {
HStack {
getLeftSideOfRectangle(cryptocurrency: cryptocurrency, vSpacing: vSpacing)
Expand All @@ -53,27 +56,6 @@ struct VirtualTradingView: View {

}
)
// return HStack {
// Image(cryptocurrency.name)
// .resizable()
// .scaledToFit()
// .frame(width: 70, height: 70)
// .padding(.trailing)
// VStack {
// NavigationLink {
// VirtualBuySellView(cryptocurrency, $userMoney)
// } label: {
// VStack(alignment: .leading) {
// Text(cryptocurrency.completeName)
// .bold()
// Text("Current Amount: \(formatDouble(value: cryptocurrency.amount))")
// Text("Current Price: \("$" + formatDouble(value: cryptocurrency.price))")
// }
// }
// }
// }
// .padding(.top, 5)
// .padding(.bottom, 5)
}

var body: some View {
Expand All @@ -90,16 +72,20 @@ struct VirtualTradingView: View {
Divider()
.background(.black)

HStack{
HStack {
Image("Dollar")
.resizable()
.scaledToFit()
.frame(width: 50, height: 50)
Text("Current Money: \("$" + formatDouble(value: userMoney))")
.bold()
.italic()
.foregroundColor(.black)
.font(.system(size: 20, weight: .light, design: .default))
Button {

} label: {
Text("Current Money: \("$" + formatDouble(value: userMoney))")
.bold()
.italic()
.foregroundColor(.black)
.font(.system(size: 20, weight: .light, design: .default))
}
}
.padding(.top, 5)
.padding(.bottom, 5)
Expand All @@ -125,8 +111,11 @@ struct VirtualTraidingView_Previews: PreviewProvider {
Cryptocurrency(symbol: "BTC/USD", name: "Bitcoin", history: [], abbreviation: "BTC")
]
static let abbreviations = ["BNB", "BTC"]

@State static var userMoney: Double = 5000
@State static var unknownErrorAlert: Bool = false

static var previews: some View {
VirtualTradingView(cryptocurrencies: $cryptocurrencies, abbreviations: abbreviations)
VirtualTradingView(cryptocurrencies: $cryptocurrencies, abbreviations: abbreviations, userMoney: $userMoney, unknownErrorAlert: $unknownErrorAlert)
}
}

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