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zircles-ios
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create ZircleService

This commit is contained in:
Francisco Gindre 2020-06-30 21:47:50 -03:00
parent b4d1eb8a0a
commit 74e1da5cdd
5 changed files with 369 additions and 47 deletions
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16
Zircles.xcodeproj/project.pbxproj
View File

@ -52,6 +52,8 @@
0DB5330F24A623AF0090D722 /* sapling-spend.params in Resources */ = {isa = PBXBuildFile; fileRef = 0DB5330D24A623AF0090D722 /* sapling-spend.params */; };
0DB5331024A623AF0090D722 /* sapling-output.params in Resources */ = {isa = PBXBuildFile; fileRef = 0DB5330E24A623AF0090D722 /* sapling-output.params */; };
0DB5331224A6413D0090D722 /* LazyView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DB5331124A6413D0090D722 /* LazyView.swift */; };
0DB5331424A6B8B60090D722 /* memo.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DB5331324A6B8B60090D722 /* memo.pb.swift */; };
0DC1B47B24AAA44B00AEF3D0 /* ZircleService.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DC1B47A24AAA44B00AEF3D0 /* ZircleService.swift */; };
0DD7278924A5532300C36D27 /* AllZirclesView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DD7278824A5532300C36D27 /* AllZirclesView.swift */; };
0DD7278B24A564AF00C36D27 /* ZircleListCard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DD7278A24A564AF00C36D27 /* ZircleListCard.swift */; };
0DEE59A824A24B7300447C15 /* WelcomeView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0DEE59A724A24B7300447C15 /* WelcomeView.swift */; };
@ -128,6 +130,8 @@
0DB5330D24A623AF0090D722 /* sapling-spend.params */ = {isa = PBXFileReference; lastKnownFileType = file; path = "sapling-spend.params"; sourceTree = "<group>"; };
0DB5330E24A623AF0090D722 /* sapling-output.params */ = {isa = PBXFileReference; lastKnownFileType = file; path = "sapling-output.params"; sourceTree = "<group>"; };
0DB5331124A6413D0090D722 /* LazyView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LazyView.swift; sourceTree = "<group>"; };
0DB5331324A6B8B60090D722 /* memo.pb.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = memo.pb.swift; sourceTree = "<group>"; };
0DC1B47A24AAA44B00AEF3D0 /* ZircleService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ZircleService.swift; sourceTree = "<group>"; };
0DD7278824A5532300C36D27 /* AllZirclesView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AllZirclesView.swift; sourceTree = "<group>"; };
0DD7278A24A564AF00C36D27 /* ZircleListCard.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ZircleListCard.swift; sourceTree = "<group>"; };
0DEE59A724A24B7300447C15 /* WelcomeView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WelcomeView.swift; sourceTree = "<group>"; };
@ -229,6 +233,8 @@
0D1366AA24991A6000F0EB54 /* Zircles */ = {
isa = PBXGroup;
children = (
0DC1B47924AAA43100AEF3D0 /* ZircleService */,
0DB5331324A6B8B60090D722 /* memo.pb.swift */,
0DB5330E24A623AF0090D722 /* sapling-output.params */,
0DB5330D24A623AF0090D722 /* sapling-spend.params */,
0D64CEBE24A3D3A30080AA4F /* CombineSynchronizer.swift */,
@ -323,6 +329,14 @@
path = Neumorphic;
sourceTree = "<group>";
};
0DC1B47924AAA43100AEF3D0 /* ZircleService */ = {
isa = PBXGroup;
children = (
0DC1B47A24AAA44B00AEF3D0 /* ZircleService.swift */,
);
path = ZircleService;
sourceTree = "<group>";
};
E7393F4D108BAE27C875D7F0 /* Pods */ = {
isa = PBXGroup;
children = (
@ -578,6 +592,7 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
0DC1B47B24AAA44B00AEF3D0 /* ZircleService.swift in Sources */,
0D6A22C9249AB3CA00B4E946 /* ZcashButton.swift in Sources */,
0D64CEB924A3CDA90080AA4F /* URL+Zcash.swift in Sources */,
0D64CEC524A41AF30080AA4F /* AppDetails.swift in Sources */,
@ -611,6 +626,7 @@
0D64CEBD24A3CDA90080AA4F /* SimpleLogger.swift in Sources */,
0D64CEBC24A3CDA90080AA4F /* BalanceUtils.swift in Sources */,
0D5142C824A16F9600F9AE2E /* CreateNewTypeOfZircle.swift in Sources */,
0DB5331424A6B8B60090D722 /* memo.pb.swift in Sources */,
0D64CEBB24A3CDA90080AA4F /* CameraAccessHelper.swift in Sources */,
0D64CEB424A3CDA90080AA4F /* SeedManagement.swift in Sources */,
0D64CEC324A4137D0080AA4F /* ZircleData.swift in Sources */,

16
Zircles/CombineSynchronizer.swift
View File

@ -158,4 +158,20 @@ class CombineSynchronizer {
}
}
func latestHeight() -> Future<BlockHeight,Error> {
Future<BlockHeight,Error>() { promise in
DispatchQueue.global().async { [weak self] in
guard let self = self else { return }
do {
promise(.success(try self.initializer.lightWalletService.latestBlockHeight()))
} catch {
promise(.failure(error))
}
}
}
}
}

49
Zircles/Utils/SeedManagement.swift
View File

@ -101,10 +101,9 @@ final class SeedManager {
There's no fate but what we make for ourselves - Sarah Connor
*/
func nukeWallet() {
nukeKeys()
nukeSeed()
nukePhrase()
nukeBirthday()
for key in keychain.allKeys {
keychain.delete(key)
}
}
}
@ -113,3 +112,45 @@ extension SeedManager: SeedProvider {
(try? exportSeed()) ?? []
}
}
extension SeedManager {
func saveKeys(_ key: String, phrase: String,height: BlockHeight, spendingKey: String) throws {
guard keychain.get(heightKey(key)) == nil else {
throw SeedManagerError.alreadyImported
}
keychain.set(String(height), forKey: heightKey(key))
guard keychain.get(phraseKey(key)) == nil else {
throw SeedManagerError.alreadyImported
}
keychain.set(String(phrase), forKey: phraseKey(key))
guard keychain.get(spendingKeyKey(key)) == nil else {
throw SeedManagerError.alreadyImported
}
keychain.set(String(phrase), forKey: spendingKeyKey(key))
}
func getZircleKeys(_ key: String) throws -> (height: BlockHeight, phrase: String, spendingKey: String)? {
guard let heightString = keychain.get(heightKey(key)),
let height = BlockHeight(heightString),
let phrase = keychain.get(phraseKey(key)),
let spendingKey = keychain.get(spendingKeyKey(key)) else {
return nil
}
return (height: height, phrase: phrase, spendingKey: spendingKey)
}
func heightKey(_ key: String) -> String {
key+"+height"
}
func phraseKey(_ key: String) -> String {
key+"+phrase"
}
func spendingKeyKey(_ key: String) -> String {
key+"+spending"
}
}

84
Zircles/Views/CreateNewZircleDescription.swift
View File

@ -8,51 +8,46 @@
import SwiftUI
extension ZircleFrequency {
var textDescription: String {
switch self {
case .daily:
return "Daily"
case .weekly:
return "Weekly"
case .monthly:
return "Monthly"
}
}
}
extension ZircleEndDate {
var optionIndex: Int {
switch self {
case .onDate(_):
return 0
case .atWill:
return 1
}
}
var textDescription: String {
switch self {
case .atWill:
return "At Will"
case .onDate:
return "On Date"
}
}
}
struct CreateNewZircleDescription: View {
enum ZircleFrequency: Int {
case daily = 0
case weekly
case monthly
var textDescription: String {
switch self {
case .daily:
return "Daily"
case .weekly:
return "Weekly"
case .monthly:
return "Monthly"
}
}
}
enum ZircleEndDate {
case onDate(date: Date)
case atWill
var optionIndex: Int {
switch self {
case .onDate(_):
return 0
case .atWill:
return 1
}
}
var textDescription: String {
switch self {
case .atWill:
return "At Will"
case .onDate:
return "On Date"
}
}
}
@State var contributionFrequency: Int = ZircleFrequency.weekly.rawValue
@State var endDate: Int = ZircleEndDate.atWill.optionIndex
@State var zircleEndDate = Date()
@State var zircleName = ""
@State var contributionInZec: String = ""
var body: some View {
ZStack {
Color.background.edgesIgnoringSafeArea(.all)
@ -65,7 +60,7 @@ struct CreateNewZircleDescription: View {
.frame(alignment: .leading)
Card(isOn: .constant(true),cornerRadius: 5,padding: 8) {
TextField("some title text", text: .constant("Hackathon Happy Hour"))
TextField("some title text", text: $zircleName)
.foregroundColor(Color.textDarkGray)
.font(.system(size: 14, weight: .heavy, design: .default))
@ -80,9 +75,10 @@ struct CreateNewZircleDescription: View {
.frame(alignment: .leading)
Card(isOn: .constant(true),cornerRadius: 5,padding: 8) {
TextField("some title text", text: .constant("3 ZEC"))
TextField("ZEC to save", text: $contributionInZec)
.foregroundColor(Color.textDarkGray)
.font(.system(size: 14, weight: .heavy, design: .default))
.keyboardType(.decimalPad)
}
}.padding(.all, 0)
@ -111,7 +107,9 @@ struct CreateNewZircleDescription: View {
ZircleEndDate.atWill.textDescription
)
}.padding(.all, 0)
Button(action: /*@START_MENU_TOKEN@*/{}/*@END_MENU_TOKEN@*/, label: {
Button(action: {
}, label: {
Text("Create New Zircle")
.font(.system(size: 20, weight: .bold, design: .default))
.shadow(color:Color(.sRGBLinear, red: 0.2, green: 0.2, blue: 0.2, opacity: 0.5), radius: 1, x: 0, y: 2)

251
Zircles/ZircleService/ZircleService.swift Normal file
View File

@ -0,0 +1,251 @@
//
// ZircleService.swift
// Zircles
//
// Created by Francisco Gindre on 6/29/20.
// Copyright © 2020 Electric Coin Company. All rights reserved.
//
import Foundation
import Combine
enum ZircleServiceError: Error {
case generalError(message: String)
}
protocol ZircleService {
func createNewZircle(name: String, goal zatoshi: Int64, frequency: ZircleFrequency, endDate: ZircleEndDate) throws -> Future<ZircleEntity, Error>
func closeZircle(name: String) throws
func contribute(zatoshi: Int64, zircle: ZircleEntity) throws
func allOpenZircles() throws -> [ZircleEntity]?
func allContributions(from zircle: ZircleEntity) -> Future<[ZircleOverallContribution],Error>
func openInvite(_ url: URL) -> Future<Int,Error>
}
protocol ZircleOverallContribution {
var from: String { get set }
var zAddr: String { get set }
var zatoshi: Int64 { get set }
}
protocol ZircleContribution {
var from: String { get set }
var zatoshi: Int64 { get set }
var date: Date { get set }
}
protocol ZircleEntity {
var name: String { get set}
var goal: Int64 { get set }
var frequency: Int {get set }
var endDate: TimeInterval { get set }
var accountIndex: Int {get set}
var address: String {get set}
}
enum ZircleFrequency: Int {
case daily = 0
case weekly
case monthly
}
enum ZircleEndDate {
case onDate(date: Date)
case atWill
}
struct ConcreteZircle: ZircleEntity {
var name: String
var goal: Int64
var frequency: Int
var endDate: TimeInterval
var accountIndex: Int
var address: String
}
import MnemonicSwift
extension CombineSynchronizer: ZircleService {
func closeZircle(name: String) throws {
}
func contribute(zatoshi: Int64, zircle: ZircleEntity) throws {
}
func allOpenZircles() throws -> [ZircleEntity]? {
nil
}
func allContributions(from zircle: ZircleEntity) -> Future<[ZircleOverallContribution], Error> {
Future<[ZircleOverallContribution], Error>() { promise in
promise(.success([]))
}
}
func openInvite(_ url: URL) -> Future<Int, Error> {
Future<Int, Error>() { promise in
promise(.success(-1))
}
}
func createNewZircle(name: String, goal zatoshi: Int64, frequency: ZircleFrequency, endDate: ZircleEndDate) -> Future<ZircleEntity, Error> {
Future<ZircleEntity, Error>() { promise in
var storage = [AnyCancellable]()
DispatchQueue.global().async { [weak self] in
guard let self = self else { return }
// Get latest height from chain and generate a mnemonic seed for this zircle
Publishers.Zip(self.latestHeight(),
Mnemonic.generatePublisher(strength: 24)
).sink(receiveCompletion: { error in
switch error {
case .failure(let e):
promise(.failure(e))
default:
break
}
}, receiveValue: { (height, seedPhrase) in
guard let seedBytes = Mnemonic.deterministicSeedBytes(from: seedPhrase) else {
promise(.failure(ZircleServiceError.generalError(message: "mnemonic bytes failed")))
return
}
do {
// start derivation
let derivationHelper = self.initializer.keyDerivationHelper()
// derive extended spending keys, and extended Viewing Keys
guard let extendedSpendingKeys = try derivationHelper.deriveExtendedSpendingKeys(seed: seedBytes, accounts: 1),
let extendedSpendingKey = extendedSpendingKeys.first,
let extendedViewingKey = try derivationHelper.deriveExtendedFullViewingKey(extendedSpendingKey) else {
promise(.failure(ZircleServiceError.generalError(message: "Key derivation error")))
}
// import extended viewing key
let accountIndex = try self.initializer.importExtendedFullViewingKey(extendedViewingKey)
// get zAddr for this zircle
guard let zAddr = self.initializer.getAddress(index: Int(accountIndex)) else {
promise(.failure(ZircleServiceError.generalError(message: "coudn't get zAddr for account index: \(accountIndex)")))
return
}
// set end date per input
var end: TimeInterval = -1
switch endDate {
case .onDate(let date):
end = date.timeIntervalSince1970
default:
break
}
// create zircle struct
let zircle = ConcreteZircle(name: name,
goal: zatoshi,
frequency: frequency.rawValue,
endDate: end,
accountIndex: Int(accountIndex),
address: zAddr)
// get supporting wallet spending keys to create zircle
guard let mainSpendingKey = SeedManager.default.getKeys()?.first else {
promise(.failure(ZircleServiceError.generalError(message: "error getting spending keys")))
return
}
guard let freq = CreateZircleMessage.ContributionFrequency(rawValue: zircle.frequency) else {
promise(.failure(ZircleServiceError.generalError(message: "could not create frequency with value \(zircle.frequency)")))
return
}
// create protobut message for the memo
let createMessage = CreateZircleMessage.with { (createMsg) in
createMsg.name = zircle.name
createMsg.goal = UInt64(zircle.goal)
createMsg.frequency = freq
createMsg.end = UInt64(zircle.endDate)
}
// not sure if this is ok, but I don't have a data interface
let memo = try createMessage.jsonString()
// double check that the resulting data won't be truncated. this should be caught earlier on UI
guard memo.utf8.count <= 512 else {
promise(.failure(ZircleServiceError.generalError(message: "Zircle Message \"\(memo)\" is longer than 512 bytes - total: \(memo.utf8.count)")))
return
}
// save before sending
try SeedManager.default.saveKeys(name,
phrase: seedPhrase,
height: height,
spendingKey: extendedSpendingKey)
// fund zircle
self.send(with: mainSpendingKey,
zatoshi: 1000,
to: zAddr,
memo: memo,
from: 0)
.sink { errorSubscriber in
switch errorSubscriber {
case .failure(let underlyingError):
promise(.failure(underlyingError))
default:
break
}
} receiveValue: { (p) in
promise(.success(zircle))
}.store(in: &storage)
} catch {
promise(.failure(error))
}
}).store(in: &storage)
}
}
}
func allContributions(from zircle: ZircleEntity) throws -> [ZircleOverallContribution] {
[]
}
func openInvite(_ url: URL) throws {
}
}
extension Mnemonic {
static func generatePublisher(strength: Int) -> Future<String, Error> {
Future<String,Error>() { promise in
DispatchQueue.global().async {
guard let mnemonic = Mnemonic.generateMnemonic(strength: 24) else {
promise(.failure(ZircleServiceError.generalError(message: "Error generating mnemonic")))
return
}
promise(.success(mnemonic))
}
}
}
}