sync2/src/pages/TransferNotifier.vue at master · javascriptit/sync2 · GitHub

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import Vue from 'vue'

import { abis } from 'src/consts'

import { abi } from 'thor-devkit'

import { formatAmount } from 'src/utils/format'

export default Vue.extend({

props: {

gid: String

computed: {

thor(): Connex.Thor { return this.$svc.bc(this.gid).thor },

addresses(): string[] {

if (!this.wallets) {

return []

}

return Array.from(this.wallets.reduce<Set<string>>((prev, cur) => {

cur.meta.addresses.forEach(a => prev.add(a))

return prev

}, new Set()))

// compose vet transfer criteria

transferCriteria(): Connex.Thor.Filter.Criteria<'transfer'>[] {

return this.addresses.reduce<Connex.Thor.Filter.Criteria<'transfer'>[]>((prev, cur) => {

prev.push({ sender: cur }, { recipient: cur })

return prev

}, [])

// compose token transfer criteria

eventCriteria(): Connex.Thor.Filter.Criteria<'event'>[] {

const tokens = this.tokens

if (!tokens) {

return []

}

return this.addresses.reduce<Connex.Thor.Filter.Criteria<'event'>[]>((prev, cur) => {

tokens.forEach(spec => {

const ev = this.thor

.account(spec.address)

.event(abis.transferEvent)

prev.push(

ev.asCriteria({ _from: cur }),

ev.asCriteria({ _to: cur }))

})

return prev

}, [])

}

asyncComputed: {

wallets(): Promise<M.Wallet[] | null> {

return this.$svc.wallet.getByGid(this.gid)

async tokens(): Promise<M.TokenSpec[] | null> {

const [tokens, activeSymbols] = await Promise.all([

this.$svc.config.token.all(),

this.$svc.config.token.activeSymbols()

])

return tokens.filter(token =>

token.address && // exclude vet

token.gid === this.gid &&

(activeSymbols.includes(token.symbol) || token.permanent))

// vet transfers

transfers: {

get(): Promise<Connex.Thor.Filter.Row<'transfer'>[] | null> {

return this.guardRange('transfer', range => {

const criteria = this.transferCriteria

if (criteria.length === 0) {

return Promise.resolve([])

}

return this.thor.filter('transfer', criteria)

.cache(this.addresses)

.range(range)

.apply(0, 5)

})

// no auto update, but react to headNumber change

shouldUpdate() { return false }

// token transfers

events: {

get(): Promise<Connex.Thor.Filter.Row<'event'>[] | null> {

return this.guardRange('event', range => {

const criteria = this.eventCriteria

if (criteria.length === 0) {

return Promise.resolve([])

}

return this.thor.filter('event', criteria)

.cache(this.addresses)

.range(range)

.apply(0, 5)

})

// no auto update, but react to headNumber change

shouldUpdate() { return false }

}

watch: {

thor() {

this.$asyncComputed.events.update()

this.$asyncComputed.transfers.update()

transfers(newVal: Connex.Thor.Filter.Row<'transfer'>[] | null) {

const wallets = this.wallets

if (!wallets) {

return

}

newVal && newVal.forEach(t => {

let w = wallets.find(w => w.meta.addresses.includes(t.recipient))

if (w) {

this.notify('in', t.amount, 18, 'VET', w.id, w.meta.addresses.indexOf(t.recipient))

}

w = wallets.find(w => w.meta.addresses.includes(t.sender))

if (w) {

this.notify('out', t.amount, 18, 'VET', w.id, w.meta.addresses.indexOf(t.sender))

}

})

events(newVal: Connex.Thor.Filter.Row<'event'>[] | null) {

const wallets = this.wallets

const tokens = this.tokens

if (!wallets || !tokens) {

return

}

newVal && newVal.forEach(e => {

const token = tokens.find(t => t.address === e.address)

if (!token) {

return

}

const { _to, _from, _value }: Record<string, string> = new abi.Event(abis.transferEvent).decode(e.data, e.topics)

let w = wallets.find(w => w.meta.addresses.includes(_to))

if (w) {

this.notify('in', _value, token.decimals, token.symbol, w.id, w.meta.addresses.indexOf(_to))

}

w = wallets.find(w => w.meta.addresses.includes(_from))

if (w) {

this.notify('out', _value, token.decimals, token.symbol, w.id, w.meta.addresses.indexOf(_from))

}

})

}

methods: {

// provides stored range for the query

async guardRange<T extends Connex.Thor.Filter.WithMeta>(kind: string, query: (range: Connex.Thor.Filter.Range) => Promise<T[]>): Promise<T[]> {

const key = `${this.gid}-notifier-filter-range-start_${kind}`

const headNum = this.thor.status.head.number

const savedRange = localStorage.getItem(key)

const rangeStart = Math.max(parseInt(savedRange!) || headNum, headNum - 8640) // span no longer than a day

if (rangeStart === 0) {

return []

}

const result = await query({ unit: 'block', from: rangeStart, to: 2 ** 32 - 1 })

if (result.length > 0) {

localStorage.setItem(key, (result[result.length - 1].meta.blockNumber + 1).toString())

} else if (!savedRange || headNum > rangeStart + 100) {

localStorage.setItem(key, headNum.toString())

}

return result

notify(dir: 'in' | 'out', amount: string, decimals: number, symbol: string, walletId: number, addressIndex: number) {

const parts = formatAmount(amount, { unit: decimals, fixed: 2, fullPrecision: true })!

amount = `${parts.int}${parts.sep}${parts.dec}`

const message = dir === 'in'

? `${this.$t('common.received')} <strong>${amount}</strong> ${symbol}`

: `${this.$t('common.sent')} <strong>${amount}</strong> ${symbol}`

this.$q.notify({

color: 'secondary',

message,

position: 'top-right',

html: true,

timeout: 0,

group: false,

classes: 'transfer-notify_w100',

actions: [{

label: this.$t('common.view'),

color: 'white',

handler: () => this.$router.push({

name: 'address',

params: {

walletId: walletId.toString(),

addressIndex: addressIndex.toString()

}

}).catch(() => { })

}, {

label: this.$t('common.dismiss'),

color: 'white'

}]

})

}

render(h) {

return h()

}

})

</script>

<style>

.transfer-notify_w100 {

width: 100%;

}

</style>

sync2/src/pages/TransferNotifier.vue at master · javascriptit/sync2 · GitHub

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