chore(Communities): Refactor amounts handling for displaying, minting, airdropping and burning

Closes: #11491

src/app/modules/main/communities/tokens/io_interface.nim

@@ -21,14 +21,14 @@ method computeAirdropFee*(self: AccessInterface, communityId: string, tokensJson
 method selfDestructCollectibles*(self: AccessInterface, communityId: string, collectiblesToBurnJsonString: string, contractUniqueKey: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method burnTokens*(self: AccessInterface, communityId: string, contractUniqueKey: string, amount: float64) {.base.} =
+method burnTokens*(self: AccessInterface, communityId: string, contractUniqueKey: string, amount: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method deployCollectibles*(self: AccessInterface, communityId: string, address: string, name: string, symbol: string, description: string, supply: float64, infiniteSupply: bool, transferable: bool,
+method deployCollectibles*(self: AccessInterface, communityId: string, address: string, name: string, symbol: string, description: string, supply: string, infiniteSupply: bool, transferable: bool,
                            selfDestruct: bool, chainId: int, imageCropInfoJson: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method deployAssets*(self: AccessInterface, communityId: string, address: string, name: string, symbol: string, description: string, supply: float64, infiniteSupply: bool, decimals: int,
+method deployAssets*(self: AccessInterface, communityId: string, address: string, name: string, symbol: string, description: string, supply: string, infiniteSupply: bool, decimals: int,
                      chainId: int, imageCropInfoJson: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
@@ -48,7 +48,7 @@ method computeDeployFee*(self: AccessInterface, chainId: int, accountAddress: st
 method computeSelfDestructFee*(self: AccessInterface, collectiblesToBurnJsonString: string, contractUniqueKey: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method computeBurnFee*(self: AccessInterface, contractUniqueKey: string, amount: float64) {.base.} =
+method computeBurnFee*(self: AccessInterface, contractUniqueKey: string, amount: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 
 method onDeployFeeComputed*(self: AccessInterface, ethCurrency: CurrencyAmount, fiatCurrency: CurrencyAmount, errorCode: ComputeFeeErrorCode) {.base.} =

src/app/modules/main/communities/tokens/models/token_model.nim

@@ -2,6 +2,7 @@ import NimQml, Tables, strformat, sequtils, stint
 import token_item
 import token_owners_item
 import token_owners_model
+import ../../../../../../app_service/service/community/dto/community
 import ../../../../../../app_service/service/community_tokens/dto/community_token
 import ../../../../../../app_service/service/community_tokens/community_collectible_owner
 import ../../../../../../app_service/common/utils
@@ -32,6 +33,7 @@ type
     BurnState
     RemotelyDestructState
     PrivilegesLevel
+    MultiplierIndex
 
 QtObject:
   type TokenModel* = ref object of QAbstractListModel
@@ -181,7 +183,8 @@ QtObject:
       ModelRole.Decimals.int:"decimals",
       ModelRole.BurnState.int:"burnState",
       ModelRole.RemotelyDestructState.int:"remotelyDestructState",
-      ModelRole.PrivilegesLevel.int:"privilegesLevel"
+      ModelRole.PrivilegesLevel.int:"privilegesLevel",
+      ModelRole.MultiplierIndex.int:"multiplierIndex"
     }.toTable
 
   method data(self: TokenModel, index: QModelIndex, role: int): QVariant =
@@ -206,7 +209,7 @@ QtObject:
         result = newQVariant(item.tokenDto.description)
       of ModelRole.Supply:
         # we need to present maxSupply - destructedAmount
-        result = newQVariant(supplyByType(item.tokenDto.supply - item.destructedAmount, item.tokenDto.tokenType))
+        result = newQVariant((item.tokenDto.supply - item.destructedAmount).toString(10))
       of ModelRole.InfiniteSupply:
         result = newQVariant(item.tokenDto.infiniteSupply)
       of ModelRole.Transferable:
@@ -230,7 +233,7 @@ QtObject:
       of ModelRole.AccountAddress:
         result = newQVariant(item.tokenDto.deployer)
       of ModelRole.RemainingSupply:
-        result = newQVariant(supplyByType(item.remainingSupply, item.tokenDto.tokenType))
+        result = newQVariant(item.remainingSupply.toString(10))
       of ModelRole.Decimals:
         result = newQVariant(item.tokenDto.decimals)
       of ModelRole.BurnState:
@@ -240,6 +243,8 @@ QtObject:
         result = newQVariant(destructStatus)
       of ModelRole.PrivilegesLevel:
         result = newQVariant(item.tokenDto.privilegesLevel.int)
+      of ModelRole.MultiplierIndex:
+        result = newQVariant(if item.tokenDto.tokenType == TokenType.ERC20: 18 else: 0)
 
   proc `$`*(self: TokenModel): string =
       for i in 0 ..< self.items.len:

src/app/modules/main/communities/tokens/module.nim

@@ -93,29 +93,17 @@ proc authenticate(self: Module) =
   else:
     self.controller.authenticateUser()
 
-# for collectibles conversion is: "1" -> Uint256(1)
-# for assets amount is converted to basic units (wei-like): "1.5" -> Uint256(1500000000000000000)
-proc convertAmountByTokenType(self: Module, tokenType: TokenType, amount: float64): Uint256 =
-  const decimals = 18
-  case tokenType
-    of TokenType.ERC721:
-      return stint.parse($amount.int, Uint256)
-    of TokenType.ERC20:
-      return conversion.eth2Wei(amount, decimals)
-    else:
-      error "Converting amount - unknown token type", tokenType=tokenType
-
 proc getTokenAndAmountList(self: Module, communityId: string, tokensJsonString: string): seq[CommunityTokenAndAmount] =
   try:
     let tokensJson = tokensJsonString.parseJson
     for token in tokensJson:
       let contractUniqueKey = token["contractUniqueKey"].getStr
       let tokenDto = self.controller.findContractByUniqueId(contractUniqueKey)
-      let amountStr = token["amount"].getFloat
+      let amountStr = token["amount"].getStr
       if tokenDto.tokenType == TokenType.Unknown:
         error "Can't find token for community", contractUniqueKey=contractUniqueKey
         return @[]
-      result.add(CommunityTokenAndAmount(communityToken: tokenDto, amount: self.convertAmountByTokenType(tokenDto.tokenType, amountStr)))
+      result.add(CommunityTokenAndAmount(communityToken: tokenDto, amount: amountStr.parse(Uint256)))
   except Exception as e:
     error "Error getTokenAndAmountList", msg = e.msg
 
@@ -148,16 +136,16 @@ method selfDestructCollectibles*(self: Module, communityId: string, collectibles
   self.tempContractAction = ContractAction.SelfDestruct
   self.authenticate()
 
-method burnTokens*(self: Module, communityId: string, contractUniqueKey: string, amount: float64) =
+method burnTokens*(self: Module, communityId: string, contractUniqueKey: string, amount: string) =
   let tokenDto = self.controller.findContractByUniqueId(contractUniqueKey)
   self.tempCommunityId = communityId
   self.tempContractUniqueKey = contractUniqueKey
-  self.tempAmount = self.convertAmountByTokenType(tokenDto.tokenType, amount)
+  self.tempAmount = amount.parse(Uint256)
   self.tempContractAction = ContractAction.Burn
   self.authenticate()
 
 method deployCollectibles*(self: Module, communityId: string, fromAddress: string, name: string, symbol: string, description: string,
-                           supply: float64, infiniteSupply: bool, transferable: bool, selfDestruct: bool, chainId: int, imageCropInfoJson: string) =
+                           supply: string, infiniteSupply: bool, transferable: bool, selfDestruct: bool, chainId: int, imageCropInfoJson: string) =
   let ownerToken = self.controller.getOwnerToken(communityId)
   let masterToken = self.controller.getTokenMasterToken(communityId)
 
@@ -170,7 +158,7 @@ method deployCollectibles*(self: Module, communityId: string, fromAddress: strin
   self.tempChainId = chainId
   self.tempDeploymentParams.name = name
   self.tempDeploymentParams.symbol = symbol
-  self.tempDeploymentParams.supply = self.convertAmountByTokenType(TokenType.ERC721, supply)
+  self.tempDeploymentParams.supply = supply.parse(Uint256)
   self.tempDeploymentParams.infiniteSupply = infiniteSupply
   self.tempDeploymentParams.transferable = transferable
   self.tempDeploymentParams.remoteSelfDestruct = selfDestruct
@@ -207,14 +195,14 @@ method deployOwnerToken*(self: Module, communityId: string, fromAddress: string,
   self.tempContractAction = ContractAction.DeployOwnerToken
   self.authenticate()
 
-method deployAssets*(self: Module, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: float64, infiniteSupply: bool, decimals: int,
+method deployAssets*(self: Module, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: string, infiniteSupply: bool, decimals: int,
                      chainId: int, imageCropInfoJson: string) =
   self.tempAddressFrom = fromAddress
   self.tempCommunityId = communityId
   self.tempChainId = chainId
   self.tempDeploymentParams.name = name
   self.tempDeploymentParams.symbol = symbol
-  self.tempDeploymentParams.supply = self.convertAmountByTokenType(TokenType.ERC20, supply)
+  self.tempDeploymentParams.supply = supply.parse(Uint256)
   self.tempDeploymentParams.infiniteSupply = infiniteSupply
   self.tempDeploymentParams.decimals = decimals
   self.tempDeploymentParams.tokenUri = utl.changeCommunityKeyCompression(communityId) & "/"
@@ -269,9 +257,9 @@ method computeSelfDestructFee*(self: Module, collectiblesToBurnJsonString: strin
   let walletAndAmountList = self.getWalletAndAmountListFromJson(collectiblesToBurnJsonString)
   self.controller.computeSelfDestructFee(walletAndAmountList, contractUniqueKey)
 
-method computeBurnFee*(self: Module, contractUniqueKey: string, amount: float64) =
+method computeBurnFee*(self: Module, contractUniqueKey: string, amount: string) =
   let tokenDto = self.controller.findContractByUniqueId(contractUniqueKey)
-  self.controller.computeBurnFee(contractUniqueKey, self.convertAmountByTokenType(tokenDto.tokenType, amount))
+  self.controller.computeBurnFee(contractUniqueKey, amount.parse(Uint256))
 
 proc createUrl(self: Module, chainId: int, transactionHash: string): string =
   let network = self.controller.getNetwork(chainId)

src/app/modules/main/communities/tokens/view.nim

@@ -21,10 +21,10 @@ QtObject:
     result.QObject.setup
     result.communityTokensModule = communityTokensModule
 
-  proc deployCollectible*(self: View, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: float, infiniteSupply: bool, transferable: bool, selfDestruct: bool, chainId: int, imageCropInfoJson: string) {.slot.} =
+  proc deployCollectible*(self: View, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: string, infiniteSupply: bool, transferable: bool, selfDestruct: bool, chainId: int, imageCropInfoJson: string) {.slot.} =
     self.communityTokensModule.deployCollectibles(communityId, fromAddress, name, symbol, description, supply, infiniteSupply, transferable, selfDestruct, chainId, imageCropInfoJson)
 
-  proc deployAssets*(self: View, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: float, infiniteSupply: bool, decimals: int, chainId: int, imageCropInfoJson: string) {.slot.} =
+  proc deployAssets*(self: View, communityId: string, fromAddress: string, name: string, symbol: string, description: string, supply: string, infiniteSupply: bool, decimals: int, chainId: int, imageCropInfoJson: string) {.slot.} =
     self.communityTokensModule.deployAssets(communityId, fromAddress, name, symbol, description, supply, infiniteSupply, decimals, chainId, imageCropInfoJson)
 
   proc deployOwnerToken*(self:View, communityId: string, fromAddress: string, ownerName: string, ownerSymbol: string, ownerDescription: string, masterName: string, masterSymbol: string, masterDescription: string, chainId: int, imageCropInfoJson: string) {.slot.} =
@@ -42,7 +42,7 @@ QtObject:
   proc selfDestructCollectibles*(self: View, communityId: string, collectiblesToBurnJsonString: string, contractUniqueKey: string) {.slot.} =
     self.communityTokensModule.selfDestructCollectibles(communityId, collectiblesToBurnJsonString, contractUniqueKey)
 
-  proc burnTokens*(self: View, communityId: string, contractUniqueKey: string, amount: float) {.slot.} =
+  proc burnTokens*(self: View, communityId: string, contractUniqueKey: string, amount: string) {.slot.} =
     self.communityTokensModule.burnTokens(communityId, contractUniqueKey, amount)
 
   proc deployFeeUpdated*(self: View, ethCurrency: QVariant, fiatCurrency: QVariant, errorCode: int) {.signal.}
@@ -56,7 +56,7 @@ QtObject:
   proc computeSelfDestructFee*(self: View, collectiblesToBurnJsonString: string, contractUniqueKey: string) {.slot.} =
     self.communityTokensModule.computeSelfDestructFee(collectiblesToBurnJsonString, contractUniqueKey)
 
-  proc computeBurnFee*(self: View, contractUniqueKey: string, amount: float) {.slot.} =
+  proc computeBurnFee*(self: View, contractUniqueKey: string, amount: string) {.slot.} =
     self.communityTokensModule.computeBurnFee(contractUniqueKey, amount)
 
   proc updateDeployFee*(self: View, ethCurrency: CurrencyAmount, fiatCurrency: CurrencyAmount, errorCode: int) =

src/app_service/common/conversion.nim

@@ -45,6 +45,7 @@ proc toUInt256*(flt: float): UInt256 =
 proc toUInt64*(flt: float): StUInt[64] =
   toStUInt(flt, StUInt[64])
 
+# This method may introduce distortions and should be avoided if possible.
 proc eth2Wei*(eth: float, decimals: int = 18): UInt256 =
   let weiValue = eth * parseFloat(alignLeft("1", decimals + 1, '0'))
   weiValue.toUInt256

src/app_service/service/community_tokens/dto/community_token.nim

@@ -89,14 +89,3 @@ proc toCommunityTokenDto*(jsonObj: JsonNode): CommunityTokenDto =
 proc parseCommunityTokens*(response: RpcResponse[JsonNode]): seq[CommunityTokenDto] =
   result = map(response.result.getElems(),
     proc(x: JsonNode): CommunityTokenDto = x.toCommunityTokenDto())
-
-proc supplyByType*(supply: Uint256, tokenType: TokenType): float64 =
-  try:
-    var eths: string
-    if tokenType == TokenType.ERC20:
-      eths = wei2Eth(supply, 18)
-    else:
-      eths = supply.toString(10)
-    return parseFloat(eths)
-  except Exception as e:
-    error "Error parsing supply by type ", msg=e.msg, supply=supply, tokenType=tokenType

storybook/pages/AirdropsSettingsPanelPage.qml

@@ -104,6 +104,8 @@ SplitView {
                 assetsModel: AssetsModel {}
                 collectiblesModel: ListModel {}
 
+                accountsModel: ListModel {}
+
                 CollectiblesModel {
                     id: collectiblesModel
                 }
@@ -118,6 +120,10 @@ SplitView {
                             name: "supply"
                             expression: ((model.index + 1) * 115).toString()
                         },
+                        ExpressionRole {
+                            name: "multiplierIndex"
+                            expression: 0
+                        },
                         ExpressionRole {
                             name: "infiniteSupply"
                             expression: !(model.index % 4)
@@ -158,7 +164,12 @@ SplitView {
                     proxyRoles: [
                         ExpressionRole {
                             name: "supply"
-                            expression: ((model.index + 1) * 258).toString()
+                            expression: ((model.index + 1) * 584).toString()
+                                        + "0".repeat(18)
+                        },
+                        ExpressionRole {
+                            name: "multiplierIndex"
+                            expression: 18
                         },
                         ExpressionRole {
                             name: "infiniteSupply"

storybook/pages/HoldingsDropdownPage.qml

@@ -66,7 +66,11 @@ SplitView {
                 proxyRoles: [
                     ExpressionRole {
                         name: "supply"
-                        expression: model.index === 1 ? model.index : (model.index + 1) * 115
+                        expression: (model.index === 1 ? 1 : (model.index + 1) * 115).toString()
+                    },
+                    ExpressionRole {
+                        name: "multiplierIndex"
+                        expression: 0
                     },
                     ExpressionRole {
                         name: "infiniteSupply"
@@ -99,7 +103,12 @@ SplitView {
                 proxyRoles: [
                     ExpressionRole {
                         name: "supply"
-                        expression: (model.index + 1) * 584
+                        expression: ((model.index + 1) * 584).toString()
+                                    + "0".repeat(18)
+                    },
+                    ExpressionRole {
+                        name: "multiplierIndex"
+                        expression: 18
                     },
                     ExpressionRole {
                         name: "infiniteSupply"

storybook/pages/InlineNetworksComboBoxPage.qml

@@ -13,20 +13,30 @@ Item {
         {
             name: "Optimism",
             icon: Style.svg(ModelsData.networks.optimism),
-            amount: 300,
+            amount: "300",
+            multiplierIndex: 0,
             infiniteAmount: false
         },
         {
             name: "Arbitrum",
             icon: Style.svg(ModelsData.networks.arbitrum),
-            amount: 400,
+            amount: "400000",
+            multiplierIndex: 3,
             infiniteAmount: false
         },
         {
             name: "Hermez",
             icon: Style.svg(ModelsData.networks.hermez),
-            amount: 0,
+            amount: "0",
+            multiplierIndex: 0,
             infiniteAmount: true
+        },
+        {
+            name: "Ethereum",
+            icon: Style.svg(ModelsData.networks.ethereum),
+            amount: "12" + "0".repeat(18),
+            multiplierIndex: 18,
+            infiniteAmount: false
         }
     ]
 
@@ -78,6 +88,10 @@ Item {
                 Layout.alignment: Qt.AlignHCenter
                 text: `current amount: ${comboBox.currentAmount}`
             }
+            Label {
+                Layout.alignment: Qt.AlignHCenter
+                text: `current multiplier index: ${comboBox.currentMultiplierIndex}`
+            }
             Label {
                 Layout.alignment: Qt.AlignHCenter
                 text: `current amount infinite: ${comboBox.currentInfiniteAmount}`

storybook/pages/TokenPanelPage.qml

@@ -2,6 +2,8 @@ import QtQuick 2.15
 import QtQuick.Controls 2.15
 import QtQuick.Layouts 1.15
 
+import Qt.labs.settings 1.0
+
 import Models 1.0
 import Storybook 1.0
 import utils 1.0
@@ -20,20 +22,30 @@ SplitView {
             {
                 name: "Optimism",
                 icon: Style.svg(ModelsData.networks.optimism),
-                amount: 300,
+                amount: "300",
+                multiplierIndex: 0,
                 infiniteAmount: false
             },
             {
                 name: "Arbitrum",
                 icon: Style.svg(ModelsData.networks.arbitrum),
-                amount: 400,
+                amount: "400000",
+                multiplierIndex: 3,
                 infiniteAmount: false
             },
             {
                 name: "Hermez",
                 icon: Style.svg(ModelsData.networks.hermez),
-                amount: 500,
+                amount: "0",
+                multiplierIndex: 0,
                 infiniteAmount: true
+            },
+            {
+                name: "Ethereum",
+                icon: Style.svg(ModelsData.networks.ethereum),
+                amount: "12" + "0".repeat(18),
+                multiplierIndex: 18,
+                infiniteAmount: false
             }
         ]
 
@@ -119,8 +131,17 @@ SplitView {
                     text: "∞"
                 }
             }
+
+            Label {
+                text: "amount: " + tokenPanel.amount
             }
         }
+    }
+
+    Settings {
+        property alias networksModelCheckBoxChecked:
+            networksModelCheckBox.checked
+    }
 }
 
 // category: Panels

ui/StatusQ/src/StatusQ/Core/Utils/AmountsArithmetic.qml

@@ -40,13 +40,14 @@ QtObject {
         console.assert(!isNaN(number) && Number.isInteger(multiplier)
                        && multiplier >= 0)
         const amount = new Big.Big(number).times(10 ** multiplier)
-        console.assert(amount.eq(amount.round()))
+        // TODO: restore assert when permissions handled as bigints
+        // console.assert(amount.eq(amount.round()))
         return amount
     }
 
     /*!
       \qmlmethod AmountsArithmetic::toNumber(amount, multiplier = 0)
-      \brief Converts an amount to a java script number.
+      \brief Converts an amount (in form of amount object or string) to a java script number.
 
       This operation may result in loss of precision. Because of that it should
       be used only to display a value in the user interface, but requires
@@ -57,10 +58,16 @@ QtObject {
       \qml
         console.log(AmountsArithmetic.toNumber(
                         AmountsArithmetic.fromString("123456789123456789123"))) // 123456789123456800000
+        console.log(AmountsArithmetic.toNumber("123456789123456789123")) // 123456789123456800000
       \endqml
      */
     function toNumber(amount, multiplier = 0) {
         console.assert(Number.isInteger(multiplier) && multiplier >= 0)
+
+        if (typeof amount === "string")
+            amount = fromString(amount)
+
+        console.assert(amount instanceof Big.Big)
         return amount.div(10 ** multiplier).toNumber()
     }
 
@@ -84,7 +91,8 @@ QtObject {
     function fromString(numStr) {
         console.assert(typeof numStr === "string")
         const amount = new Big.Big(numStr)
-        console.assert(amount.eq(amount.round()))
+        // TODO: restore assert when permissions handled as bigints
+        //console.assert(amount.eq(amount.round()))
         return amount
     }
 
@@ -105,6 +113,16 @@ QtObject {
         return amount.times(multiplier)
     }
 
+    /*!
+      \qmlmethod AmountsArithmetic::div(divident, divisor)
+      \brief Returns a Big number whose value is the value of divident divided by divisor.
+     */
+    function div(divident, divisor) {
+        console.assert(divident instanceof Big.Big)
+        console.assert(divisor instanceof Big.Big)
+        return divident.div(divisor)
+    }
+
     /*!
       \qmlmethod AmountsArithmetic::cmp(amount1, amount2)
       \brief Compares two amounts.

ui/app/AppLayouts/Communities/controls/InlineNetworksComboBox.qml

@@ -5,6 +5,7 @@ import QtQml 2.15
 import StatusQ.Core 0.1
 import StatusQ.Core.Theme 0.1
 import StatusQ.Controls 0.1
+import StatusQ.Core.Utils 0.1 as SQUtils
 
 import SortFilterProxyModel 0.2
 
@@ -13,6 +14,7 @@ StatusComboBox {
 
     readonly property string currentName: control.currentText
     readonly property alias currentAmount: instantiator.amount
+    readonly property alias currentMultiplierIndex: instantiator.multiplierIndex
     readonly property alias currentInfiniteAmount: instantiator.infiniteAmount
     readonly property alias currentIcon: instantiator.icon
 
@@ -49,6 +51,10 @@ StatusComboBox {
         readonly property int iconSize: 32
 
         readonly property string infinitySymbol: "∞"
+
+        function amountText(amount, multiplierIndex) {
+            return SQUtils.AmountsArithmetic.toNumber(amount, multiplierIndex)
+        }
     }
 
     component CustomText: StatusBaseText {
@@ -94,7 +100,8 @@ StatusComboBox {
         id: instantiator
 
         property string icon
-        property int amount
+        property string amount
+        property int multiplierIndex
         property bool infiniteAmount
 
         model: SortFilterProxyModel {
@@ -109,6 +116,7 @@ StatusComboBox {
             readonly property list<Binding> bindings: [
                 Bind { property: "icon"; value: model.icon },
                 Bind { property: "amount"; value: model.amount },
+                Bind { property: "multiplierIndex"; value: model.multiplierIndex },
                 Bind { property: "infiniteAmount"; value: model.infiniteAmount }
             ]
         }
@@ -118,10 +126,17 @@ StatusComboBox {
         title: root.control.displayText
         iconSource: instantiator.icon
 
-        amount: !d.oneItem
+        amount: {
-                ? (instantiator.infiniteAmount ? d.infinitySymbol
+            if (d.oneItem || !instantiator.amount)
-                                               : instantiator.amount)
+                return ""
-                : ""
+
+            if (instantiator.infiniteAmount)
+                return d.infinitySymbol
+
+            return d.amountText(instantiator.amount,
+                                instantiator.multiplierIndex)
+        }
+
         cursorShape: d.oneItem ? Qt.ArrowCursor : Qt.PointingHandCursor
 
         onClicked: {
@@ -135,7 +150,9 @@ StatusComboBox {
     delegate: DelegateItem {
         title: model.name
         iconSource: model.icon
-        amount: model.infiniteAmount ? d.infinitySymbol : model.amount
+        amount: model.infiniteAmount
+                ? d.infinitySymbol
+                : d.amountText(model.amount, model.multiplierIndex)
 
         width: root.width
         height: root.height

ui/app/AppLayouts/Communities/controls/ListDropdownContent.qml

@@ -1,12 +1,13 @@
-import QtQuick 2.13
+import QtQuick 2.15
-import QtQuick.Layouts 1.14
+import QtQuick.Layouts 1.15
-import QtQuick.Controls 2.13
+import QtQuick.Controls 2.15
-import QtGraphicalEffects 1.13
+import QtGraphicalEffects 1.15
 
+import StatusQ.Components 0.1
+import StatusQ.Controls 0.1
 import StatusQ.Core 0.1
 import StatusQ.Core.Theme 0.1
-import StatusQ.Controls 0.1
+import StatusQ.Core.Utils 0.1 as SQUtils
-import StatusQ.Components 0.1
 
 import utils 1.0
 
@@ -98,11 +99,19 @@ StatusListView {
         showSubItemsIcon: !!model.subItems && model.subItems.count > 0
         selected: root.checkedKeys.includes(model.key)
         amount: {
-            if(!model.infiniteSupply && !!model.supply && model.supply == 1)
+            if (model.supply === undefined
+                    || model.multiplierIndex === undefined)
+                return ""
+
+            if (model.infiniteSupply)
+                return "∞"
+
+            if (model.supply === "1")
                 return qsTr("Max. 1")
 
-            if(root.showTokenAmount)
+            if (root.showTokenAmount)
-                return !!model.infiniteSupply ? "∞" : model.supply ?? ""
+                return SQUtils.AmountsArithmetic.toNumber(model.supply,
+                                                          model.multiplierIndex)
 
             return ""
         }

ui/app/AppLayouts/Communities/controls/TokenPanel.qml

@@ -1,5 +1,5 @@
-import QtQuick 2.14
+import QtQuick 2.15
-import QtQuick.Layouts 1.14
+import QtQuick.Layouts 1.15
 
 import StatusQ.Core 0.1
 import StatusQ.Core.Theme 0.1
@@ -21,6 +21,7 @@ ColumnLayout {
     property alias tokenImage: item.iconSource
     property alias amountText: amountInput.text
     property alias amount: amountInput.amount
+    property alias multiplierIndex: amountInput.multiplierIndex
     property alias tokenCategoryText: tokenLabel.text
     property alias networkLabelText: d.networkLabelText
     property alias addOrUpdateButtonEnabled: addOrUpdateButton.enabled
@@ -33,8 +34,9 @@ ColumnLayout {
     signal updateClicked
     signal removeClicked
 
-    function setAmount(amount) {
+    function setAmount(amount, multiplierIndex = 0) {
-        amountInput.setAmount(amount)
+        console.assert(typeof amount === "string")
+        amountInput.setAmount(amount, multiplierIndex)
     }
 
     QtObject {
@@ -86,7 +88,10 @@ ColumnLayout {
             spacing: 10
 
             property alias currentAmount: inlineNetworksComboBox.currentAmount
-            property alias currentInfiniteAmount: inlineNetworksComboBox.currentInfiniteAmount
+            property alias currentMultiplierIndex:
+                inlineNetworksComboBox.currentMultiplierIndex
+            property alias currentInfiniteAmount:
+                inlineNetworksComboBox.currentInfiniteAmount
 
             CustomText {
                 id: networkLabel
@@ -124,10 +129,14 @@ ColumnLayout {
             !networksComboBoxLoader.item.currentInfiniteAmount
 
         maximumAmount: !!networksComboBoxLoader.item
-                       ? networksComboBoxLoader.item.currentAmount : 0
+                       ? networksComboBoxLoader.item.currentAmount : "0"
+
+        multiplierIndex: !!networksComboBoxLoader.item
+                         ? networksComboBoxLoader.item.currentMultiplierIndex : 0
 
         onKeyPressed: {
-            if(!addOrUpdateButton.enabled) return
+            if(!addOrUpdateButton.enabled)
+                return
 
             if(event.key === Qt.Key_Enter || event.key === Qt.Key_Return)
                 addOrUpdateButton.clicked()
@@ -145,7 +154,8 @@ ColumnLayout {
     StatusButton {
         id: addOrUpdateButton
 
-        text: (root.mode === HoldingTypes.Mode.Add) ? qsTr("Add") : qsTr("Update")
+        text: root.mode === HoldingTypes.Mode.Add ? qsTr("Add")
+                                                  : qsTr("Update")
         Layout.preferredHeight: d.defaultHeight
         Layout.topMargin: d.defaultSpacing
         Layout.fillWidth: true

ui/app/AppLayouts/Communities/helpers/PermissionsHelpers.qml

@@ -73,6 +73,9 @@ QtObject {
     }
 
     function setHoldingsTextFormat(type, name, amount) {
+        if (typeof amount === "string")
+            amount = AmountsArithmetic.toNumber(AmountsArithmetic.fromString(amount))
+
         switch (type) {
             case HoldingTypes.Type.Asset:
                 return `${LocaleUtils.numberToLocaleString(amount)} ${name}`

ui/app/AppLayouts/Communities/helpers/TokenObject.qml

@@ -22,8 +22,9 @@ QtObject {
     property string symbol
     property string description
     property bool infiniteSupply: true
-    property int supply: 1
+    property string supply: "1"
-    property int remainingTokens: supply
+    property string remainingTokens: supply
+    property int multiplierIndex: 0
 
     // Artwork related properties:
     property url artworkSource

ui/app/AppLayouts/Communities/panels/AirdropsSettingsPanel.qml

@@ -65,7 +65,7 @@ StackView {
 
         readonly property bool isAdminOnly: root.isAdmin && !root.isPrivilegedTokenOwnerProfile
 
-        signal selectToken(string key, int amount, int type)
+        signal selectToken(string key, string amount, int type)
         signal addAddresses(var addresses)
     }
 

ui/app/AppLayouts/Communities/panels/MintTokensSettingsPanel.qml

@@ -66,16 +66,16 @@ StackView {
     signal mintOwnerToken(var ownerToken, var tMasterToken)
 
     signal deployFeesRequested(int chainId, string accountAddress, int tokenType)
-    signal burnFeesRequested(string tokenKey, int amount, string accountAddress)
+    signal burnFeesRequested(string tokenKey, string amount, string accountAddress)
     signal remotelyDestructFeesRequest(var remotelyDestructTokensList, // [key , amount]
                                        string tokenKey,
                                        string accountAddress)
     signal remotelyDestructCollectibles(var remotelyDestructTokensList, // [key , amount]
                                         string tokenKey,
                                         string accountAddress)
-    signal signBurnTransactionOpened(string tokenKey, int amount, string accountAddress)
+    signal signBurnTransactionOpened(string tokenKey, string amount, string accountAddress)
-    signal burnToken(string tokenKey, int amount, string accountAddress)
+    signal burnToken(string tokenKey, string amount, string accountAddress)
-    signal airdropToken(string tokenKey, int type, var addresses)
+    signal airdropToken(string tokenKey, string amount, int type, var addresses)
     signal deleteToken(string tokenKey)
 
     function setFeeLoading() {
@@ -281,6 +281,7 @@ StackView {
 
             property TokenObject asset: TokenObject{
                 type: Constants.TokenType.ERC20
+                multiplierIndex: 18
             }
 
             property TokenObject collectible: TokenObject {
@@ -520,11 +521,15 @@ StackView {
             token: TokenObject {}
 
             onGeneralAirdropRequested: {
-                root.airdropToken(view.airdropKey, view.token.type, []) // tokenKey instead when backend airdrop ready to use key instead of symbol
+                root.airdropToken(view.airdropKey,
+                                  "1" + "0".repeat(view.token.multiplierIndex),
+                                  view.token.type, []) // tokenKey instead when backend airdrop ready to use key instead of symbol
             }
 
             onAirdropRequested: {
-                root.airdropToken(view.airdropKey, view.token.type, [address]) // tokenKey instead when backend airdrop ready to use key instead of symbol
+                root.airdropToken(view.airdropKey,
+                                  "1" + "0".repeat(view.token.multiplierIndex),
+                                  view.token.type, [address]) // tokenKey instead when backend airdrop ready to use key instead of symbol
             }
 
             onRemoteDestructRequested: {
@@ -609,7 +614,9 @@ StackView {
             remotelyDestructVisible: token.remotelyDestruct
             burnVisible: !token.infiniteSupply
 
-            onAirdropClicked: root.airdropToken(view.airdropKey, // tokenKey instead when backend airdrop ready to use key instead of symbol
+            onAirdropClicked: root.airdropToken(
+                                  view.airdropKey,
+                                  "1" + "0".repeat(view.token.multiplierIndex),
                                   view.token.type, [])
 
             onRemotelyDestructClicked: remotelyDestructPopup.open()
@@ -617,7 +624,7 @@ StackView {
 
             // helper properties to pass data through popups
             property var remotelyDestructTokensList
-            property int burnAmount
+            property string burnAmount
             property string accountAddress
 
             RemotelyDestructPopup {
@@ -703,6 +710,7 @@ StackView {
                 communityName: root.communityName
                 tokenName: footer.token.name
                 remainingTokens: footer.token.remainingTokens
+                multiplierIndex: footer.token.multiplierIndex
                 tokenSource: footer.token.artworkSource
                 chainName: footer.token.chainName
 
@@ -786,6 +794,7 @@ StackView {
                     token.burnState: model.burnState
                     token.remotelyDestructState: model.remotelyDestructState
                     token.accountAddress: model.accountAddress
+                    token.multiplierIndex: model.multiplierIndex
                 }
 
                 onCountChanged: {

ui/app/AppLayouts/Communities/panels/TokenInfoPanel.qml

@@ -177,7 +177,11 @@ Control {
                 id: totalbox
 
                 label: qsTr("Total")
-                value: token.infiniteSupply ? d.infiniteSymbol : LocaleUtils.numberToLocaleString(token.supply)
+                value: token.infiniteSupply
+                       ? d.infiniteSymbol
+                       : LocaleUtils.numberToLocaleString(
+                             StatusQUtils.AmountsArithmetic.toNumber(token.supply,
+                                                                     token.multiplierIndex))
                 isLoading: !token.infiniteSupply &&
                            ((!root.isAssetPanel && token.remotelyDestructState === Constants.ContractTransactionStatus.InProgress) ||
                             (d.burnState === Constants.ContractTransactionStatus.InProgress))
@@ -189,7 +193,11 @@ Control {
                 readonly property int remainingTokens: root.preview ? token.supply : token.remainingTokens
 
                 label: qsTr("Remaining")
-                value: token.infiniteSupply ? d.infiniteSymbol : LocaleUtils.numberToLocaleString(remainingTokens)
+                value: token.infiniteSupply
+                       ? d.infiniteSymbol
+                       : LocaleUtils.numberToLocaleString(
+                             StatusQUtils.AmountsArithmetic.toNumber(token.remainingTokens,
+                                                                     token.multiplierIndex))
                 isLoading: !token.infiniteSupply && (d.burnState === Constants.ContractTransactionStatus.InProgress)
             }
 

ui/app/AppLayouts/Communities/popups/BurnTokensPopup.qml

@@ -25,7 +25,8 @@ StatusDialog {
     property string communityName
     property bool isAsset // If asset isAsset = true; if collectible --> isAsset = false
     property string tokenName
-    property int remainingTokens
+    property string remainingTokens
+    property int multiplierIndex
     property url tokenSource
     property string chainName
 
@@ -38,13 +39,20 @@ StatusDialog {
     // Account expected roles: address, name, color, emoji, walletType
     property var accounts
 
-    signal burnClicked(int burnAmount, string accountAddress)
+    signal burnClicked(string burnAmount, string accountAddress)
     signal cancelClicked
-    signal burnFeesRequested(int burnAmount, string accountAddress)
+    signal burnFeesRequested(string burnAmount, string accountAddress)
 
     QtObject {
         id: d
 
+        readonly property real remainingTokensFloat:
+            SQUtils.AmountsArithmetic.toNumber(
+                root.remainingTokens, root.multiplierIndex)
+
+        readonly property string remainingTokensDisplayText:
+            LocaleUtils.numberToLocaleString(remainingTokensFloat)
+
         property string accountAddress
         property alias amountToBurn: amountToBurnInput.text
         readonly property bool isFeeError: root.feeErrorText !== ""
@@ -75,7 +83,7 @@ StatusDialog {
         StatusBaseText {
             Layout.fillWidth: true
 
-            text: qsTr("How many of %1’s remaining %n %2 tokens would you like to burn?", "", root.remainingTokens).arg(root.communityName).arg(root.tokenName)
+            text: qsTr("How many of %1’s remaining %n %2 tokens would you like to burn?", "", d.remainingTokensFloat).arg(root.communityName).arg(root.tokenName)
             wrapMode: Text.WordWrap
             lineHeight: 1.2
             font.pixelSize: Style.current.primaryTextFontSize
@@ -107,7 +115,19 @@ StatusDialog {
                     validationMode: StatusInput.ValidationMode.OnlyWhenDirty
                     validators: [
                         StatusValidator {
-                            validate: (value) => { return (parseInt(value) > 0 && parseInt(value) <= root.remainingTokens) }
+                            validate: (value) => {
+                                const intAmount = parseInt(value)
+
+                                if (!intAmount)
+                                    return false
+
+                                const current = SQUtils.AmountsArithmetic.fromNumber(
+                                              intAmount, root.multiplierIndex)
+                                const remaining = SQUtils.AmountsArithmetic.fromString(
+                                              root.remainingTokens)
+
+                                return SQUtils.AmountsArithmetic.cmp(current, remaining) <= 0
+                            }
                             errorMessage: qsTr("Exceeds available remaining")
                         },
                         StatusValidator {
@@ -127,7 +147,7 @@ StatusDialog {
 
                 Layout.alignment: Qt.AlignTop
 
-                text: qsTr("All available remaining (%1)").arg(root.remainingTokens)
+                text: qsTr("All available remaining (%1)").arg(d.remainingTokensDisplayText)
                 font.pixelSize: Style.current.primaryTextFontSize
                 ButtonGroup.group: radioGroup
             }
@@ -173,12 +193,20 @@ StatusDialog {
 
                 interval: 500
                 onTriggered: {
-                    if(specificAmountButton.checked)
+                    if(specificAmountButton.checked) {
-                        root.burnFeesRequested(parseInt(amountToBurnInput.text), d.accountAddress)
+                        if (!amountToBurnInput.text)
-                    else
+                            return
+
+                        root.burnFeesRequested(
+                                    SQUtils.AmountsArithmetic.fromNumber(
+                                        parseInt(amountToBurnInput.text),
+                                        root.multiplierIndex),
+                                    d.accountAddress)
+                    } else {
                         root.burnFeesRequested(root.remainingTokens, d.accountAddress)
                     }
                 }
+            }
 
             QtObject {
                 id: singleFeeModel
@@ -193,7 +221,7 @@ StatusDialog {
 
     header: StatusDialogHeader {
         headline.title: qsTr("Burn %1 tokens").arg(root.tokenName)
-        headline.subtitle: qsTr("%n %1 remaining in smart contract", "", root.remainingTokens).arg(root.tokenName)
+        headline.subtitle: qsTr("%n %1 remaining in smart contract", "", d.remainingTokensFloat).arg(root.tokenName)
         leftComponent: Rectangle {
             height: 40
             width: height
@@ -236,14 +264,19 @@ StatusDialog {
                 text: qsTr("Burn tokens")
                 type: StatusBaseButton.Type.Danger
                 onClicked: {
-                    if(specificAmountButton.checked)
+                    if(specificAmountButton.checked) {
-                        root.burnClicked(parseInt(amountToBurnInput.text), d.accountAddress)
+                        root.burnClicked(
-                    else
+                                    SQUtils.AmountsArithmetic.fromNumber(
+                                        parseInt(amountToBurnInput.text),
+                                        root.multiplierIndex),
+                                    d.accountAddress)
+                    } else {
                         root.burnClicked(root.remainingTokens, d.accountAddress)
                     }
                 }
             }
         }
+    }
 
     onOpened: d.initialize()
 }

ui/app/AppLayouts/Communities/popups/HoldingsDropdown.qml

@@ -35,20 +35,21 @@ StatusDropdown {
     property var usedEnsNames: []
 
     property string assetKey: ""
-    property real assetAmount: 0
+    property string assetAmount: "0"
+    property int assetMultiplierIndex: 0
 
     property string collectibleKey: ""
-    property real collectibleAmount: 1
+    property string collectibleAmount: "1"
 
     property string ensDomainName: ""
     property bool showTokenAmount: true
 
-    signal addAsset(string key, real amount)
+    signal addAsset(string key, string amount)
-    signal addCollectible(string key, real amount)
+    signal addCollectible(string key, string amount)
     signal addEns(string domain)
 
-    signal updateAsset(string key, real amount)
+    signal updateAsset(string key, string amount)
-    signal updateCollectible(string key, real amount)
+    signal updateCollectible(string key, string amount)
     signal updateEns(string domain)
 
     signal removeClicked
@@ -94,8 +95,10 @@ StatusDropdown {
         ]
         readonly property var tabsModel: [qsTr("Assets"), qsTr("Collectibles"), qsTr("ENS")]
         readonly property var tabsModelNoEns: [qsTr("Assets"), qsTr("Collectibles")]
-        readonly property bool assetsReady: root.assetAmount > 0 && root.assetKey
+
-        readonly property bool collectiblesReady: root.collectibleAmount > 0 && root.collectibleKey
+        readonly property bool assetsReady: root.assetAmount !== "0" && root.assetKey
+        readonly property bool collectiblesReady: root.collectibleAmount !== "0" && root.collectibleKey
+
         readonly property bool ensReady: d.ensDomainNameValid
 
         property int extendedDropdownType: ExtendedDropdownContent.Type.Assets
@@ -139,8 +142,8 @@ StatusDropdown {
         function setDefaultAmounts() {
             d.assetAmountText = ""
             d.collectibleAmountText = ""
-            root.assetAmount = 0
+            root.assetAmount = "0"
-            root.collectibleAmount = 1
+            root.collectibleAmount = "1"
         }
 
         function forceLayout() {
@@ -388,7 +391,8 @@ StatusDropdown {
         TokenPanel {
             id: assetPanel
 
-            readonly property real effectiveAmount: amountValid ? amount : 0
+            readonly property string effectiveAmount: amountValid ? amount : "0"
+            property bool completed: false
 
             tokenName: PermissionsHelpers.getTokenNameByKey(root.assetsModel, root.assetKey)
             tokenShortName: PermissionsHelpers.getTokenShortNameByKey(root.assetsModel, root.assetKey)
@@ -415,9 +419,10 @@ StatusDropdown {
                         return
 
                     append({
-                        name:chainName,
+                        name: chainName,
                         icon: chainIcon,
                         amount: asset.supply,
+                        multiplierIndex: asset.multiplierIndex,
                         infiniteAmount: asset.infiniteSupply
                     })
 
@@ -425,7 +430,12 @@ StatusDropdown {
                 }
             }
 
-            onEffectiveAmountChanged: root.assetAmount = effectiveAmount
+            onEffectiveAmountChanged: {
+                if (completed)
+                    root.assetAmount = effectiveAmount
+            }
+
+            onMultiplierIndexChanged: root.assetMultiplierIndex = multiplierIndex
             onAmountTextChanged: d.assetAmountText = amountText
             onAddClicked: root.addAsset(root.assetKey, root.assetAmount)
             onUpdateClicked: root.updateAsset(root.assetKey, root.assetAmount)
@@ -438,8 +448,11 @@ StatusDropdown {
             }
 
             Component.onCompleted: {
-                if (d.assetAmountText.length === 0 && root.assetAmount)
+                completed = true
-                    assetPanel.setAmount(root.assetAmount)
+
+                if (d.assetAmountText.length === 0 && root.assetAmount !== "0")
+                    assetPanel.setAmount(root.assetAmount,
+                                         root.assetMultiplierIndex)
             }
         }
     }
@@ -450,7 +463,8 @@ StatusDropdown {
         TokenPanel {
             id: collectiblePanel
 
-            readonly property real effectiveAmount: amountValid ? amount : 0
+            readonly property string effectiveAmount: amountValid ? amount : "0"
+            property bool completed: false
 
             tokenName: PermissionsHelpers.getTokenNameByKey(root.collectiblesModel, root.collectibleKey)
             tokenShortName: ""
@@ -482,6 +496,7 @@ StatusDropdown {
                         name:chainName,
                         icon: chainIcon,
                         amount: collectible.supply,
+                        multiplierIndex: collectible.multiplierIndex,
                         infiniteAmount: collectible.infiniteSupply
                     })
 
@@ -489,13 +504,19 @@ StatusDropdown {
                 }
             }
 
-            onEffectiveAmountChanged: root.collectibleAmount = effectiveAmount
+            onEffectiveAmountChanged: {
+                if (completed)
+                    root.collectibleAmount = effectiveAmount
+            }
+
             onAmountTextChanged: d.collectibleAmountText = amountText
             onAddClicked: root.addCollectible(root.collectibleKey, root.collectibleAmount)
             onUpdateClicked: root.updateCollectible(root.collectibleKey, root.collectibleAmount)
             onRemoveClicked: root.removeClicked()
 
             Component.onCompleted: {
+                completed = true
+
                 if (d.collectibleAmountText.length === 0 && root.collectibleAmount)
                     collectiblePanel.setAmount(root.collectibleAmount)
             }

ui/app/AppLayouts/Communities/views/CommunitySettingsView.qml

@@ -403,8 +403,8 @@ StatusSectionLayout {
             onAirdropToken: {
                 root.goTo(Constants.CommunitySettingsSections.Airdrops)
 
-                // Force a token selection to be airdroped with default amount 1
+                // Force a token selection to be airdroped with given amount
-                airdropPanel.selectToken(tokenKey, 1, type)
+                airdropPanel.selectToken(tokenKey, amount, type)
 
                 // Set given addresses as recipients
                 airdropPanel.addAddresses(addresses)

ui/app/AppLayouts/Communities/views/EditAirdropView.qml

@@ -87,11 +87,9 @@ StatusScrollView {
     function selectToken(key, amount, type) {
         if(selectedHoldingsModel)
             selectedHoldingsModel.clear()
-        var tokenModel = null
+
-        if(type === Constants.TokenType.ERC20)
+        const tokenModel = type === Constants.TokenType.ERC20 ?
-            tokenModel = root.assetsModel
+                             root.assetsModel : root.collectiblesModel
-        else if (type === Constants.TokenType.ERC721)
-            tokenModel = root.collectiblesModel
 
         const modelItem = PermissionsHelpers.getTokenByKey(
                             tokenModel, key)
@@ -178,22 +176,23 @@ StatusScrollView {
         onTotalRevisionChanged: Qt.callLater(() => d.resetFees())
 
         function prepareEntry(key, amount, type) {
-            let tokenModel = null
+            const tokenModel = type === Constants.TokenType.ERC20
-            if(type === Constants.TokenType.ERC20)
+                             ? root.assetsModel : root.collectiblesModel
-                tokenModel = root.assetsModel
-            else if (type === Constants.TokenType.ERC721)
-                tokenModel = root.collectiblesModel
-
             const modelItem = PermissionsHelpers.getTokenByKey(
                                 tokenModel, key)
-
+            const multiplierIndex = modelItem.multiplierIndex
+            const amountNumber = AmountsArithmetic.toNumber(
+                                   amount, multiplierIndex)
+            const amountLocalized = LocaleUtils.numberToLocaleString(
+                                      amountNumber, -1)
             return {
                 key, amount, type,
-                tokenText: amount + " " + modelItem.name,
+                tokenText: amountLocalized + " " + modelItem.name,
                 tokenImage: modelItem.iconSource,
                 networkText: modelItem.chainName,
                 networkImage: Style.svg(modelItem.chainIcon),
                 supply: modelItem.supply,
+                multiplierIndex: modelItem.multiplierIndex,
                 infiniteSupply: modelItem.infiniteSupply,
                 contractUniqueKey: modelItem.contractUniqueKey,
                 accountName: modelItem.accountName,
@@ -278,7 +277,13 @@ StatusScrollView {
                 if (!item || item.infiniteSupply)
                     continue
 
-                min = Math.min(item.supply / item.amount, min)
+                const dividient = AmountsArithmetic.fromString(item.supply)
+                const divisor = AmountsArithmetic.fromString(item.amount)
+
+                const quotient = AmountsArithmetic.toNumber(
+                                   AmountsArithmetic.div(dividient, divisor))
+
+                min = Math.min(quotient, min)
             }
 
             infinity = min === Number.MAX_SAFE_INTEGER
@@ -286,12 +291,24 @@ StatusScrollView {
         }
 
         delegate: QtObject {
-            readonly property int supply: model.supply
+            readonly property string supply: model.supply
-            readonly property real amount: model.amount
+            readonly property string amount: model.amount
             readonly property bool infiniteSupply: model.infiniteSupply
 
-            readonly property bool valid:
+            readonly property bool valid: {
-                infiniteSupply || amount * airdropRecipientsSelector.count <= supply
+                if (infiniteSupply)
+                    return true
+
+                const recipientsCount = airdropRecipientsSelector.count
+                const demand = AmountsArithmetic.times(
+                                 AmountsArithmetic.fromString(amount),
+                                 recipientsCount)
+
+                const available = AmountsArithmetic.fromString(supply)
+
+                return AmountsArithmetic.cmp(demand, available) <= 0
+            }
+
 
             onSupplyChanged: recipientsCountInstantiator.findRecipientsCount()
             onAmountChanged: recipientsCountInstantiator.findRecipientsCount()
@@ -426,6 +443,7 @@ StatusScrollView {
                     case HoldingTypes.Type.Asset:
                         dropdown.assetKey = modelItem.key
                         dropdown.assetAmount = modelItem.amount
+                        dropdown.assetMultiplierIndex = modelItem.multiplierIndex
                         dropdown.setActiveTab(HoldingTypes.Type.Asset)
                         break
                     case HoldingTypes.Type.Collectible:

ui/app/AppLayouts/Communities/views/EditCommunityTokenView.qml

@@ -254,7 +254,13 @@ StatusScrollView {
 
             visible: !unlimitedSupplyChecker.checked
             label: qsTr("Total finite supply")
-            text: root.isAssetView ? asset.supply : collectible.supply
+            text: {
+                const token = root.isAssetView ? root.asset : root.collectible
+
+                return SQUtils.AmountsArithmetic.toNumber(token.supply,
+                                                          token.multiplierIndex)
+            }
+
             placeholderText: qsTr("e.g. 300")
             minLengthValidator.errorMessage: qsTr("Please enter a total finite supply")
             regexValidator.errorMessage: d.hasEmoji(text) ? qsTr("Your total finite supply is too cool (use 0-9 only)") :
@@ -264,14 +270,13 @@ StatusScrollView {
             extraValidator.errorMessage: qsTr("Enter a number between 1 and 999,999,999")
 
             onTextChanged: {
-                const amount = parseInt(text)
+                const supplyNumber = parseInt(text)
-                if (Number.isNaN(amount) || Object.values(errors).length)
+                if (Number.isNaN(supplyNumber) || Object.values(errors).length)
                     return
 
-                if(root.isAssetView)
+                const token = root.isAssetView ? root.asset : root.collectible
-                    asset.supply = amount
+                token.supply = SQUtils.AmountsArithmetic.fromNumber(
-                else
+                            supplyNumber, token.multiplierIndex).toFixed(0)
-                    collectible.supply = amount
             }
         }
 

ui/app/AppLayouts/Communities/views/EditOwnerTokenView.qml

@@ -49,7 +49,7 @@ StatusScrollView {
         symbol: PermissionsHelpers.communityNameToSymbol(true, root.communityName)
         transferable: true
         remotelyDestruct: false
-        supply: 1
+        supply: "1"
         infiniteSupply: false
         description: qsTr("This is the %1 Owner token. The hodler of this collectible has ultimate control over %1 Community token administration.").arg(root.communityName)
     }

ui/app/AppLayouts/Communities/views/EditPermissionView.qml

@@ -242,7 +242,7 @@ StatusScrollView {
                     const key = item.key
 
                     d.dirtyValues.selectedHoldingsModel.append(
-                                { type, key, amount })
+                                { type, key, amount: parseFloat(amount) })
                 }
 
                 function prepareUpdateIndex(key) {
@@ -270,6 +270,7 @@ StatusScrollView {
                 onAddAsset: {
                     const modelItem = PermissionsHelpers.getTokenByKey(
                                         root.assetsModel, key)
+
                     addItem(HoldingTypes.Type.Asset, modelItem, amount)
                     dropdown.close()
                 }
@@ -277,6 +278,7 @@ StatusScrollView {
                 onAddCollectible: {
                     const modelItem = PermissionsHelpers.getTokenByKey(
                                         root.collectiblesModel, key)
+
                     addItem(HoldingTypes.Type.Collectible, modelItem, amount)
                     dropdown.close()
                 }
@@ -292,7 +294,7 @@ StatusScrollView {
                     const modelItem = PermissionsHelpers.getTokenByKey(root.assetsModel, key)
 
                     d.dirtyValues.selectedHoldingsModel.set(
-                                itemIndex, { type: HoldingTypes.Type.Asset, key, amount })
+                                itemIndex, { type: HoldingTypes.Type.Asset, key, amount: parseFloat(amount) })
                     dropdown.close()
                 }
 
@@ -303,7 +305,7 @@ StatusScrollView {
 
                     d.dirtyValues.selectedHoldingsModel.set(
                                 itemIndex,
-                                { type: HoldingTypes.Type.Collectible, key, amount })
+                                { type: HoldingTypes.Type.Collectible, key, amount: parseFloat(amount) })
                     dropdown.close()
                 }
 

ui/app/AppLayouts/Communities/views/MintedTokensView.qml

@@ -161,7 +161,7 @@ StatusScrollView {
                 id: assetsList
 
                 Layout.fillWidth: true
-                Layout.preferredHeight: childrenRect.height
+                Layout.preferredHeight: contentHeight
 
                 visible: count > 0
                 model: assetsModel

ui/imports/shared/controls/AmountInput.qml

@@ -3,6 +3,7 @@ import QtQuick.Layouts 1.14
 
 import StatusQ.Core 0.1
 import StatusQ.Core.Theme 0.1
+import StatusQ.Core.Utils 0.1 as SQUtils
 
 import utils 1.0
 
@@ -13,11 +14,13 @@ Input {
     property var locale: Qt.locale()
 
     readonly property alias amount: d.amount
+    property alias multiplierIndex: d.multiplierIndex
+
     readonly property bool valid: validationError.length === 0
     property bool allowDecimals: true
 
     property bool validateMaximumAmount: false
-    property real maximumAmount: 0
+    property string maximumAmount: "0"
 
     validationErrorTopMargin: 8
     fontPixelSize: 13
@@ -27,18 +30,27 @@ Input {
     textField.rightPadding: labelText.implicitWidth + labelText.anchors.rightMargin
                             + textField.leftPadding
 
-    function setAmount(amount) {
+    function setAmount(amount, multiplierIndex = 0) {
-        root.text = LocaleUtils.numberToLocaleString(amount, -1, root.locale)
+        console.assert(typeof amount === "string")
+
+        d.multiplierIndex = multiplierIndex
+        const amountNumber = SQUtils.AmountsArithmetic.toNumber(
+                               amount, multiplierIndex)
+
+        root.text = LocaleUtils.numberToLocaleString(amountNumber, -1,
+                                                     root.locale)
     }
 
     onTextChanged: d.validate()
     onValidateMaximumAmountChanged: d.validate()
     onMaximumAmountChanged: d.validate()
+    onMultiplierIndexChanged: d.validate()
 
     QtObject {
         id: d
 
-        property real amount: 0
+        property string amount: "0"
+        property int multiplierIndex: 0
 
         function getEffectiveDigitsCount(str) {
             const digits = LocaleUtils.getLocalizedDigitsCount(text, root.locale)
@@ -50,7 +62,7 @@ Input {
                 root.text = root.text.replace(root.locale.decimalPoint, "")
 
             if(root.text.length === 0) {
-                d.amount = 0
+                d.amount = "0"
                 root.validationError = ""
                 return
             }
@@ -60,16 +72,38 @@ Input {
                 return
             }
 
-            const amount = LocaleUtils.numberFromLocaleString(root.text, root.locale)
+            const amountNumber = LocaleUtils.numberFromLocaleString(root.text, root.locale)
-            if (isNaN(amount)) {
+            if (isNaN(amountNumber)) {
-                d.amount = 0
+                d.amount = "0"
                 root.validationError = qsTr("Invalid amount format")
-            } else if (root.validateMaximumAmount && amount > root.maximumAmount) {
+                return
-                root.validationError = qsTr("Amount exceeds balance")
-            } else {
-                d.amount = amount
-                root.validationError = ""
             }
+
+            const amount = SQUtils.AmountsArithmetic.fromNumber(
+                             amountNumber, d.multiplierIndex)
+
+            if (root.validateMaximumAmount) {
+                const maximumAmount = SQUtils.AmountsArithmetic.fromString(
+                                        root.maximumAmount)
+
+                const maxExceeded = SQUtils.AmountsArithmetic.cmp(
+                                      amount, maximumAmount) === 1
+
+                if (SQUtils.AmountsArithmetic.cmp(amount, maximumAmount) === 1) {
+                    root.validationError = qsTr("Amount exceeds balance")
+                    return
+                }
+            }
+
+            // Fallback to handle float amounts for permissions
+            // As a target amount should be always integer number
+            if (!Number.isInteger(amountNumber) && d.multiplierIndex === 0) {
+                d.amount = amount.toString()
+             } else {
+                d.amount = amount.toFixed(0)
+            }
+
+            root.validationError = ""
         }
     }
 

ui/imports/shared/stores/CommunityTokensStore.qml

@@ -27,9 +27,9 @@ QtObject {
     // Minting tokens:
     function deployCollectible(communityId, collectibleItem)
     {
-        if (collectibleItem.key !== "") {
+        if (collectibleItem.key !== "")
             deleteToken(communityId, collectibleItem.key)
-        }
+
         const jsonArtworkFile = Utils.getImageAndCropInfoJson(collectibleItem.artworkSource, collectibleItem.artworkCropRect)
         communityTokensModuleInst.deployCollectible(communityId, collectibleItem.accountAddress, collectibleItem.name,
                                                     collectibleItem.symbol, collectibleItem.description, collectibleItem.supply,
@@ -39,9 +39,9 @@ QtObject {
 
     function deployAsset(communityId, assetItem)
     {
-        if (assetItem.key !== "") {
+        if (assetItem.key !== "")
             deleteToken(communityId, assetItem.key)
-        }
+
         const jsonArtworkFile = Utils.getImageAndCropInfoJson(assetItem.artworkSource, assetItem.artworkCropRect)
         communityTokensModuleInst.deployAssets(communityId, assetItem.accountAddress, assetItem.name,
                                                assetItem.symbol, assetItem.description, assetItem.supply,
@@ -120,11 +120,13 @@ QtObject {
 
     // Burn:
     function computeBurnFee(tokenKey, amount, accountAddress) {
+        console.assert(typeof amount === "string")
         // TODO: Backend. It should include the account address in the calculation.
         communityTokensModuleInst.computeBurnFee(tokenKey, amount/*, accountAddress*/)
     }
 
     function burnToken(communityId, tokenKey, burnAmount, accountAddress) {
+        console.assert(typeof burnAmount === "string")
          // TODO: Backend. It should include the account address in the burn action.
         communityTokensModuleInst.burnTokens(communityId, tokenKey, burnAmount/*, accountAddress*/)
     }