feat(ui): prefetch protocol constraints

ui/src/components/StakingTable.tsx

@@ -1,4 +1,4 @@
-import { useQuery, useQueryClient } from '@tanstack/react-query'
+import { useQueryClient } from '@tanstack/react-query'
 import { useRouter } from '@tanstack/react-router'
 import {
   ColumnDef,
@@ -15,7 +15,6 @@ import { useWallet } from '@txnlab/use-wallet-react'
 import dayjs from 'dayjs'
 import { FlaskConical, MoreHorizontal } from 'lucide-react'
 import * as React from 'react'
-import { constraintsQueryOptions } from '@/api/queries'
 import { AddStakeModal } from '@/components/AddStakeModal'
 import { AlgoDisplayAmount } from '@/components/AlgoDisplayAmount'
 import { DataTableColumnHeader } from '@/components/DataTableColumnHeader'
@@ -38,7 +37,7 @@ import {
 } from '@/components/ui/table'
 import { UnstakeModal } from '@/components/UnstakeModal'
 import { StakerValidatorData } from '@/interfaces/staking'
-import { Validator } from '@/interfaces/validator'
+import { Constraints, Validator } from '@/interfaces/validator'
 import { canManageValidator, isStakingDisabled, isUnstakingDisabled } from '@/utils/contracts'
 import { simulateEpoch } from '@/utils/development'
 import { cn } from '@/utils/ui'
@@ -47,9 +46,15 @@ interface StakingTableProps {
   validators: Validator[]
   stakesByValidator: StakerValidatorData[]
   isLoading: boolean
+  constraints: Constraints
 }
 
-export function StakingTable({ validators, stakesByValidator, isLoading }: StakingTableProps) {
+export function StakingTable({
+  validators,
+  stakesByValidator,
+  isLoading,
+  constraints,
+}: StakingTableProps) {
   const [sorting, setSorting] = React.useState<SortingState>([])
   const [columnFilters, setColumnFilters] = React.useState<ColumnFiltersState>([])
   const [columnVisibility, setColumnVisibility] = React.useState<VisibilityState>({})
@@ -60,8 +65,6 @@ export function StakingTable({ validators, stakesByValidator, isLoading }: Staki
 
   const { transactionSigner, activeAddress } = useWallet()
 
-  const { data: constraints } = useQuery(constraintsQueryOptions)
-
   const router = useRouter()
   const queryClient = useQueryClient()
 

ui/src/components/ValidatorTable.tsx

@@ -1,5 +1,4 @@
 import { AlgoAmount } from '@algorandfoundation/algokit-utils/types/amount'
-import { useQuery } from '@tanstack/react-query'
 import { Link } from '@tanstack/react-router'
 import {
   ColumnDef,
@@ -15,7 +14,6 @@ import {
 import { useWallet } from '@txnlab/use-wallet-react'
 import { FlaskConical, MoreHorizontal } from 'lucide-react'
 import * as React from 'react'
-import { constraintsQueryOptions } from '@/api/queries'
 import { AddPoolModal } from '@/components/AddPoolModal'
 import { AddStakeModal } from '@/components/AddStakeModal'
 import { AlgoDisplayAmount } from '@/components/AlgoDisplayAmount'
@@ -42,7 +40,7 @@ import {
 } from '@/components/ui/table'
 import { UnstakeModal } from '@/components/UnstakeModal'
 import { StakerValidatorData } from '@/interfaces/staking'
-import { Validator } from '@/interfaces/validator'
+import { Constraints, Validator } from '@/interfaces/validator'
 import {
   calculateMaxStake,
   calculateMaxStakers,
@@ -59,9 +57,14 @@ import { cn } from '@/utils/ui'
 interface ValidatorTableProps {
   validators: Validator[]
   stakesByValidator: StakerValidatorData[]
+  constraints: Constraints
 }
 
-export function ValidatorTable({ validators, stakesByValidator }: ValidatorTableProps) {
+export function ValidatorTable({
+  validators,
+  stakesByValidator,
+  constraints,
+}: ValidatorTableProps) {
   const [sorting, setSorting] = React.useState<SortingState>([])
   const [columnFilters, setColumnFilters] = React.useState<ColumnFiltersState>([])
   const [columnVisibility, setColumnVisibility] = React.useState<VisibilityState>({})
@@ -73,8 +76,6 @@ export function ValidatorTable({ validators, stakesByValidator }: ValidatorTable
 
   const { transactionSigner, activeAddress } = useWallet()
 
-  const { data: constraints } = useQuery(constraintsQueryOptions)
-
   const columns: ColumnDef<Validator>[] = [
     {
       accessorKey: 'id',
@@ -138,7 +139,7 @@ export function ValidatorTable({ validators, stakesByValidator }: ValidatorTable
         if (validator.state.numPools == 0) return '--'
 
         const totalStakers = validator.state.totalStakers
-        const maxStakers = calculateMaxStakers(validator)
+        const maxStakers = calculateMaxStakers(validator, constraints)
 
         return (
           <span className="whitespace-nowrap">
@@ -173,7 +174,7 @@ export function ValidatorTable({ validators, stakesByValidator }: ValidatorTable
         const validator = row.original
         const stakingDisabled = isStakingDisabled(activeAddress, validator, constraints)
         const unstakingDisabled = isUnstakingDisabled(activeAddress, validator, stakesByValidator)
-        const addingPoolDisabled = isAddingPoolDisabled(activeAddress, validator)
+        const addingPoolDisabled = isAddingPoolDisabled(activeAddress, validator, constraints)
         const canManage = canManageValidator(activeAddress, validator)
 
         const isDevelopment = process.env.NODE_ENV === 'development'
@@ -313,7 +314,7 @@ export function ValidatorTable({ validators, stakesByValidator }: ValidatorTable
               ))}
             </TableHeader>
             <TableBody>
-              {table.getRowModel().rows?.length ? (
+              {table.getRowModel().rows.length ? (
                 table.getRowModel().rows.map((row) => (
                   <TableRow key={row.id} data-state={row.getIsSelected() && 'selected'}>
                     {row.getVisibleCells().map((cell) => (

ui/src/routes/index.tsx

@@ -2,7 +2,7 @@ import { useQuery, useSuspenseQuery } from '@tanstack/react-query'
 import { createFileRoute } from '@tanstack/react-router'
 import { useWallet } from '@txnlab/use-wallet-react'
 import { fetchStakerValidatorData } from '@/api/contracts'
-import { validatorsQueryOptions } from '@/api/queries'
+import { constraintsQueryOptions, validatorsQueryOptions } from '@/api/queries'
 import { Meta } from '@/components/Meta'
 import { PageHeader } from '@/components/PageHeader'
 import { PageMain } from '@/components/PageMain'
@@ -11,7 +11,16 @@ import { ValidatorTable } from '@/components/ValidatorTable'
 import { StakerValidatorData } from '@/interfaces/staking'
 
 export const Route = createFileRoute('/')({
-  loader: ({ context: { queryClient } }) => queryClient.ensureQueryData(validatorsQueryOptions),
+  beforeLoad: () => {
+    return {
+      validatorsQueryOptions,
+      constraintsQueryOptions,
+    }
+  },
+  loader: async ({ context: { queryClient, validatorsQueryOptions, constraintsQueryOptions } }) => {
+    queryClient.ensureQueryData(validatorsQueryOptions)
+    queryClient.ensureQueryData(constraintsQueryOptions)
+  },
   component: Dashboard,
   pendingComponent: () => <div>Loading...</div>,
   errorComponent: ({ error }) => {
@@ -26,6 +35,9 @@ function Dashboard() {
   const validatorsQuery = useSuspenseQuery(validatorsQueryOptions)
   const validators = validatorsQuery.data
 
+  const constraintsQuery = useSuspenseQuery(constraintsQueryOptions)
+  const constraints = constraintsQuery.data
+
   const { activeAddress } = useWallet()
 
   const stakesQuery = useQuery<StakerValidatorData[]>({
@@ -47,8 +59,13 @@ function Dashboard() {
             validators={validators || []}
             stakesByValidator={stakesByValidator}
             isLoading={stakesQuery.isLoading}
+            constraints={constraints}
+          />
+          <ValidatorTable
+            validators={validators || []}
+            stakesByValidator={stakesByValidator}
+            constraints={constraints}
           />
-          <ValidatorTable validators={validators || []} stakesByValidator={stakesByValidator} />
         </div>
       </PageMain>
     </>

ui/src/utils/contracts.ts

@@ -405,9 +405,8 @@ export function calculateMaxStake(
   return maxStake
 }
 
-export function calculateMaxStakers(validator: Validator): number {
-  // @todo: fetch max stakers from contract
-  const maxStakersPerPool = 200
+export function calculateMaxStakers(validator: Validator, constraints?: Constraints): number {
+  const maxStakersPerPool = constraints?.maxStakersPerPool || 0
   const maxStakers = maxStakersPerPool * validator.state.numPools
 
   return maxStakers
@@ -428,8 +427,7 @@ export function isStakingDisabled(
     maxAlgoPerPool = constraints.maxAlgoPerPool
   }
 
-  // @todo: fetch max stakers from contract
-  const maxStakersPerPool = 200
+  const maxStakersPerPool = constraints?.maxStakersPerPool || 0
 
   const maxStakers = maxStakersPerPool * numPools
   const maxStake = Number(maxAlgoPerPool) * numPools
@@ -455,16 +453,19 @@ export function isUnstakingDisabled(
   return noPools || !validatorHasStake
 }
 
-export function isAddingPoolDisabled(activeAddress: string | null, validator: Validator): boolean {
-  if (!activeAddress) {
+export function isAddingPoolDisabled(
+  activeAddress: string | null,
+  validator: Validator,
+  constraints?: Constraints,
+): boolean {
+  if (!activeAddress || !constraints) {
     return true
   }
-  // @todo: define totalNodes as global constant or fetch from protocol constraints
-  const totalNodes = 4
+  const maxNodes = constraints.maxNodes
   const { numPools } = validator.state
   const { poolsPerNode } = validator.config
 
-  const hasAvailableSlots = numPools < poolsPerNode * totalNodes
+  const hasAvailableSlots = numPools < poolsPerNode * maxNodes
 
   return !hasAvailableSlots
 }