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// path constants
const STATUS_PATH = '/status'
const GAS_PRICE_PATH = '/txParams/gasPrice'
// status constants
const UNAPPROVED_STATUS = 'unapproved'
const SUBMITTED_STATUS = 'submitted'
const CONFIRMED_STATUS = 'confirmed'
const DROPPED_STATUS = 'dropped'
// op constants
const REPLACE_OP = 'replace'
// event constants
const TRANSACTION_CREATED_EVENT = 'transactionCreated'
const TRANSACTION_UPDATED_GAS_EVENT = 'transactionUpdatedGas'
const TRANSACTION_SUBMITTED_EVENT = 'transactionSubmitted'
const TRANSACTION_CONFIRMED_EVENT = 'transactionConfirmed'
const TRANSACTION_DROPPED_EVENT = 'transactionDropped'
const TRANSACTION_UPDATED_EVENT = 'transactionUpdated'
const eventPathsHash = {
[STATUS_PATH]: true,
[GAS_PRICE_PATH]: true,
}
const statusHash = {
[SUBMITTED_STATUS]: TRANSACTION_SUBMITTED_EVENT,
[CONFIRMED_STATUS]: TRANSACTION_CONFIRMED_EVENT,
[DROPPED_STATUS]: TRANSACTION_DROPPED_EVENT,
}
function eventCreator (eventKey, timestamp, value) {
return {
eventKey,
timestamp,
value,
}
}
export function getActivities (transaction) {
const { history = [] } = transaction
return history.reduce((acc, base) => {
// First history item should be transaction creation
if (!Array.isArray(base) && base.status === UNAPPROVED_STATUS && base.txParams) {
const { time, txParams: { value } = {} } = base
return acc.concat(eventCreator(TRANSACTION_CREATED_EVENT, time, value))
// An entry in the history may be an array of more sub-entries.
} else if (Array.isArray(base)) {
const events = []
base.forEach(entry => {
const { op, path, value, timestamp: entryTimestamp } = entry
// Not all sub-entries in a history entry have a timestamp. If the sub-entry does not have a
// timestamp, the first sub-entry in a history entry should.
const timestamp = entryTimestamp || base[0] && base[0].timestamp
if (path in eventPathsHash && op === REPLACE_OP) {
switch (path) {
case STATUS_PATH: {
if (value in statusHash) {
events.push(eventCreator(statusHash[value], timestamp))
}
break
}
case GAS_PRICE_PATH: {
events.push(eventCreator(TRANSACTION_UPDATED_GAS_EVENT, timestamp, value))
break
}
default: {
events.push(eventCreator(TRANSACTION_UPDATED_EVENT, timestamp))
}
}
}
})
return acc.concat(events)
}
return acc
}, [])
}
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