import FungibleToken from 0xf233dcee88fe0abe pub contract JoyrideMultiToken { // Always 0. This is not really a Token pub var totalSupply: UFix64 // Defines paths for user accounts pub let UserStoragePath: StoragePath pub let UserPublicPath: PublicPath pub let UserPrivatePath: PrivatePath // Defines token vault storage paths access(contract) let TokenStoragePaths: {UInt8: StoragePath} // Defines token vault public paths access(contract) let TokenPublicPaths: {UInt8: PublicPath} /// TokensInitialized /// /// The event that is emitted when the contract is created /// pub event TokensInitialized(initialSupply: UFix64) pub event JoyrideMultiTokenInfoEvent(notes: String) /// TokensWithdrawn /// /// The event that is emitted when tokens are withdrawn from a Vault /// pub event TokensWithdrawn(amount: UFix64, from: Address?) /// TokensDeposited /// /// The event that is emitted when tokens are deposited into a Vault /// pub event TokensDeposited(amount: UFix64, to: Address?) pub enum Vaults: UInt8 { pub case treasury pub case reserve } pub resource interface Receiver { pub fun depositToken(from: @FungibleToken.Vault) pub fun balanceOf(tokenContext: String): UFix64 } pub resource Vault: Receiver { pub let Depositories: {String: Capability<&FungibleToken.Vault>} init(zero: UFix64) { self.Depositories = {} } /*pub fun deposit(from: @FungibleToken.Vault) { let mtv <- from as! @JoyrideMultiToken.Vault for vaultKey in mtv.Depositories.keys { let vault = mtv.Depositories[vaultKey]!.borrow() ?? panic("unable to borow capability") self.depositToken(from: <- vault.withdraw(amount: vault.balance)) } destroy mtv }*/ pub fun depositToken(from: @FungibleToken.Vault) { let tokenIdetifier: String = from.getType().identifier emit JoyrideMultiTokenInfoEvent(notes: "depositToken for user".concat(tokenIdetifier)) let vault = self.Depositories[tokenIdetifier]?? panic("unable to borrow capability depositToken") let capability = vault.borrow()??panic("unable to get vault capability") capability.deposit(from: <- from) } pub fun withdrawToken(tokenContext: String, amount: UFix64): @FungibleToken.Vault { //let tokenIdentifier: String = tokenContext.identifier let vault = self.Depositories[tokenContext]?.borrow()??panic("unable to borrow capability withdraw") return <- vault!.withdraw(amount: amount) } pub fun registerCapability(tokenIdentifier: String, capability: Capability<&FungibleToken.Vault>) { //let tokenIdentifier: String = capability.borrow()!.getType().identifier; emit JoyrideMultiTokenInfoEvent(notes: "registerCapability".concat(tokenIdentifier)) self.Depositories[tokenIdentifier] = capability; } pub fun doesCapabilityExists(tokenIdentifier: String): Bool { return self.Depositories.containsKey(tokenIdentifier) } pub fun balanceOf(tokenContext: String): UFix64 { //let tokenIdentifier: String = tokenContext.identifier let vault = self.Depositories[tokenContext]?.borrow() ?? panic("Token tokenContext Unknown") emit JoyrideMultiTokenInfoEvent(notes: vault!.getType().identifier) return vault!.balance } } pub fun createEmptyVault() : @Vault { return <- create Vault(zero:0.0); } access(contract) fun getPlatformBalance(vault: Vaults, tokenContext: String) : UFix64 { return self.account.borrow<&Vault>(from: self.TokenStoragePaths[vault.rawValue]!)?.balanceOf(tokenContext: tokenContext) ?? 0.0 } access(contract) fun doPlatformWithdraw(vault: Vaults, tokenContext: String, amount: UFix64) : @FungibleToken.Vault? { let path = self.TokenStoragePaths[vault.rawValue] emit JoyrideMultiTokenInfoEvent(notes: "vault Index".concat(vault.rawValue.toString())) if(path == nil) { return nil } let vault = self.account.borrow<&Vault>(from: path!) if(vault == nil) { return nil } if(vault!.balanceOf(tokenContext: tokenContext) < amount) { return nil } return <- vault!.withdrawToken(tokenContext: tokenContext, amount: amount) } access(contract) fun doPlatformDeposit(vault:Vaults, from: @FungibleToken.Vault) { self.account.borrow<&Vault>(from: self.TokenStoragePaths[vault.rawValue]!)!.depositToken(from: <-from) } pub resource interface PlatformBalance { pub fun balance(vault:Vaults, tokenContext: String) : UFix64 } pub resource interface PlatformWithdraw { pub fun withdraw(vault: Vaults, tokenContext: String, amount: UFix64, purpose: String) : @FungibleToken.Vault? } pub resource interface PlatformDeposit { pub fun deposit(vault:Vaults, from: @FungibleToken.Vault) } pub resource PlatformAdmin : PlatformBalance, PlatformWithdraw, PlatformDeposit { pub fun balance(vault:Vaults, tokenContext: String) : UFix64 { return JoyrideMultiToken.getPlatformBalance(vault:vault,tokenContext:tokenContext); } pub fun withdraw(vault: Vaults, tokenContext: String, amount: UFix64, purpose: String) : @FungibleToken.Vault? { return <-JoyrideMultiToken.doPlatformWithdraw(vault: vault, tokenContext: tokenContext, amount: amount) } pub fun deposit(vault:Vaults, from: @FungibleToken.Vault) { JoyrideMultiToken.doPlatformDeposit(vault: vault, from:<-from) } } init() { self.totalSupply = 0.0; self.TokenStoragePaths = {} self.TokenPublicPaths = {} self.TokenStoragePaths[Vaults.treasury.rawValue] = /storage/JoyrideMultiToken_PlatformTreasury self.TokenPublicPaths[Vaults.treasury.rawValue] = /public/JoyrideMultiToken_PlatformTreasury self.TokenStoragePaths[Vaults.reserve.rawValue] = /storage/JoyrideMultiToken_PlatformReserve self.TokenPublicPaths[Vaults.reserve.rawValue] = /public/JoyrideMultiToken_PlatformReserve self.UserStoragePath = /storage/JoyrideMultiToken self.UserPublicPath = /public/JoyrideMultiToken self.UserPrivatePath = /private/JoyrideMultiToken let treasury <- self.createEmptyVault() self.account.save(<-treasury, to: self.TokenStoragePaths[Vaults.treasury.rawValue]!) self.account.link<&{FungibleToken.Receiver, FungibleToken.Balance}>( self.TokenPublicPaths[Vaults.treasury.rawValue]!, target: self.TokenStoragePaths[Vaults.treasury.rawValue]! ) let reserve <- self.createEmptyVault() self.account.save(<-reserve, to: self.TokenStoragePaths[Vaults.reserve.rawValue]!) self.account.link<&{FungibleToken.Receiver, FungibleToken.Balance}>( self.TokenPublicPaths[Vaults.reserve.rawValue]!, target: self.TokenStoragePaths[Vaults.reserve.rawValue]! ) let platformAdmin <- create PlatformAdmin() self.account.save(<-platformAdmin, to: /storage/JoyrideMultiToken_PlatformAdmin) self.account.link<&JoyrideMultiToken.PlatformAdmin>( /private/JoyrideMultiToken_PlatformAdmin, target: /storage/JoyrideMultiToken_PlatformAdmin ) // Emit an event that shows that the contract was initialized emit TokensInitialized(initialSupply: self.totalSupply) } pub struct TokenContextModel { pub var Symbol: String pub var TokenName: String pub var VaultName: String pub var FullAddress: String pub var TokenAddress: Address pub var StoragePath: String pub var BalancePath: String pub var ReceiverPath: String pub var PrivatePath: String init(Symbol: String, TokenName: String, VaultName: String, FullAddress: String, TokenAddress: Address, StoragePath: String, BalancePath: String, ReceiverPath: String, PrivatePath: String) { self.Symbol = Symbol self.TokenName = TokenName self.VaultName = VaultName self.FullAddress = FullAddress self.TokenAddress = TokenAddress self.StoragePath = StoragePath self.BalancePath = BalancePath self.ReceiverPath = ReceiverPath self.PrivatePath = PrivatePath } } }

🎉Happy diving into the flow

Contract

🎉Happy diving into the flow