ethereum_viewer_webapp/src/plugins/model/TxModel.js

import http from 'axios'

export default class TxModel {
    static MODULES = {
        HISTORY: 'history',
        PENDING: 'pending',
        ADDRESS: 'address'
    }

    constructor(chainId, module) {
        if (!chainId || !module) throw "Must have [chainId, module]."

        this.chainId = chainId
        this.module = module
    }

    async find(conditions, pageNumber = 1, pageSize = 200) {
        const url = `/${this.module}/findByChainId`
        const rst = await http.post(url, {
            chainId: this.chainId,
            pageNumber: pageNumber,
            pageSize: pageSize,
            conditions: conditions
        })

        return rst.data
    }

    async findByHash(hash) {
        const url = `/${this.module}/findByChainIdAndHash`
        const rst = await http.post(url, {
            chainId: this.chainId,
            hash: hash
        })

        return rst.data
    }

    async updateTxBaseModel(txBaseItem) {
        const url = `/tx/update`

        txBaseItem.chainId = this.chainId
        const rst = await http.post(url, txBaseItem)

        return rst.data
    }

    static parseLocalRecordList(remoteRecordList) {
        let localRecordList = []
        for (let remoteRecord of remoteRecordList) {
            let localRecord = TxModel.parseLocalRecord(remoteRecord)

            if (localRecord) localRecordList.push(localRecord)
        }

        return localRecordList
    }

    static parseLocalRecord(remoteRecord) {
        try {
            let localRecord = {}

            localRecord.hash = remoteRecord.hash
            localRecord.blockNumber = remoteRecord.blockNumber
            localRecord.comment = remoteRecord.comment
            localRecord.from = remoteRecord.fromAddress
            localRecord.to = remoteRecord.toAddress
            localRecord.gasPrice = TxModel.parseGasPrice(remoteRecord.gasPriceStr)
            localRecord.timestamp = remoteRecord.timestamp ? remoteRecord.timestamp : 0
            localRecord.transferList = remoteRecord.transferList
            localRecord.fromName = remoteRecord.fromName
            localRecord.toName = remoteRecord.toName
            localRecord.status = parseInt(remoteRecord.status)
            localRecord.index = parseInt(remoteRecord.transactionIndex)
            localRecord.type = parseInt(remoteRecord.tradeType)
            if (isNaN( localRecord.type))
                localRecord.type = ''

            // transferList的format
            for (const transfer of localRecord.transferList) {
                try {
                    transfer.amount = parseInt(transfer.amountStr) / (10 ** transfer.tokenDecimals)
                } catch (e) {
                    transfer.amount = parseInt(transfer.amountStr)
                }

                if (isNaN(transfer.amount))
                    transfer.amount = 0
            }
            localRecord.isMev = remoteRecord.isMev === true
            localRecord.isBot = remoteRecord.isBot === true
            localRecord.maybeBot = remoteRecord.maybeBot === true

            return localRecord
        } catch (e) {
            return undefined
        }
    }

    static parseGasPrice(gasPriceStr) {
        try {
            return parseFloat(gasPriceStr) / 1e9
        } catch (e) {
            return gasPriceStr
        }
    }
}