diff options
feature: integrate gaba/ShapeShiftController (#6569)
Diffstat (limited to 'app/scripts/controllers')
-rw-r--r-- | app/scripts/controllers/shapeshift.js | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/app/scripts/controllers/shapeshift.js b/app/scripts/controllers/shapeshift.js deleted file mode 100644 index 9b0287007..000000000 --- a/app/scripts/controllers/shapeshift.js +++ /dev/null @@ -1,180 +0,0 @@ -const ObservableStore = require('obs-store') -const extend = require('xtend') -const log = require('loglevel') - -// every three seconds when an incomplete tx is waiting -const POLLING_INTERVAL = 3000 - -class ShapeshiftController { - - /** - * Controller responsible for managing the list of shapeshift transactions. On construction, it initiates a poll - * that queries a shapeshift.io API for updates to any pending shapeshift transactions - * - * @typedef {Object} ShapeshiftController - * @param {object} opts Overrides the defaults for the initial state of this.store - * @property {array} opts.initState initializes the the state of the ShapeshiftController. Can contain an - * shapeShiftTxList array. - * @property {array} shapeShiftTxList An array of ShapeShiftTx objects - * - */ - constructor (opts = {}) { - const initState = extend({ - shapeShiftTxList: [], - }, opts.initState) - this.store = new ObservableStore(initState) - this.pollForUpdates() - } - - /** - * Represents, and contains data about, a single shapeshift transaction. - * @typedef {Object} ShapeShiftTx - * @property {string} depositAddress - An address at which to send a crypto deposit, so that eth can be sent to the - * user's Metamask account - * @property {string} depositType - An abbreviation of the type of crypto currency to be deposited. - * @property {string} key - The 'shapeshift' key differentiates this from other types of txs in Metamask - * @property {number} time - The time at which the tx was created - * @property {object} response - Initiated as an empty object, which will be replaced by a Response object. @see {@link - * https://developer.mozilla.org/en-US/docs/Web/API/Response} - */ - - // - // PUBLIC METHODS - // - - /** - * A getter for the shapeShiftTxList property - * - * @returns {array<ShapeShiftTx>} - * - */ - getShapeShiftTxList () { - const shapeShiftTxList = this.store.getState().shapeShiftTxList - return shapeShiftTxList - } - - /** - * A getter for all ShapeShiftTx in the shapeShiftTxList that have not successfully completed a deposit. - * - * @returns {array<ShapeShiftTx>} Only includes ShapeShiftTx which has a response property with a status !== complete - * - */ - getPendingTxs () { - const txs = this.getShapeShiftTxList() - const pending = txs.filter(tx => tx.response && tx.response.status !== 'complete') - return pending - } - - /** - * A poll that exists as long as there are pending transactions. Each call attempts to update the data of any - * pendingTxs, and then calls itself again. If there are no pending txs, the recursive call is not made and - * the polling stops. - * - * this.updateTx is used to attempt the update to the pendingTxs in the ShapeShiftTxList, and that updated data - * is saved with saveTx. - * - */ - pollForUpdates () { - const pendingTxs = this.getPendingTxs() - - if (pendingTxs.length === 0) { - return - } - - Promise.all(pendingTxs.map((tx) => { - return this.updateTx(tx) - })) - .then((results) => { - results.forEach(tx => this.saveTx(tx)) - this.timeout = setTimeout(this.pollForUpdates.bind(this), POLLING_INTERVAL) - }) - } - - /** - * Attempts to update a ShapeShiftTx with data from a shapeshift.io API. Both the response and time properties - * can be updated. The response property is updated with every call, but the time property is only updated when - * the response status updates to 'complete'. This will occur once the user makes a deposit as the ShapeShiftTx - * depositAddress - * - * @param {ShapeShiftTx} tx The tx to update - * - */ - async updateTx (tx) { - try { - const url = `https://shapeshift.io/txStat/${tx.depositAddress}` - const response = await fetch(url) - const json = await response.json() - tx.response = json - if (tx.response.status === 'complete') { - tx.time = new Date().getTime() - } - return tx - } catch (err) { - log.warn(err) - } - } - - /** - * Saves an updated to a ShapeShiftTx in the shapeShiftTxList. If the passed ShapeShiftTx is not in the - * shapeShiftTxList, nothing happens. - * - * @param {ShapeShiftTx} tx The updated tx to save, if it exists in the current shapeShiftTxList - * - */ - saveTx (tx) { - const { shapeShiftTxList } = this.store.getState() - const index = shapeShiftTxList.indexOf(tx) - if (index !== -1) { - shapeShiftTxList[index] = tx - this.store.updateState({ shapeShiftTxList }) - } - } - - /** - * Removes a ShapeShiftTx from the shapeShiftTxList - * - * @param {ShapeShiftTx} tx The tx to remove - * - */ - removeShapeShiftTx () { - const { shapeShiftTxList } = this.store.getState() - const index = shapeShiftTxList.indexOf(index) - if (index !== -1) { - shapeShiftTxList.splice(index, 1) - } - this.updateState({ shapeShiftTxList }) - } - - /** - * Creates a new ShapeShiftTx, adds it to the shapeShiftTxList, and initiates a new poll for updates of pending txs - * - * @param {string} depositAddress - An address at which to send a crypto deposit, so that eth can be sent to the - * user's Metamask account - * @param {string} depositType - An abbreviation of the type of crypto currency to be deposited. - * - */ - createShapeShiftTx (depositAddress, depositType) { - const state = this.store.getState() - let { shapeShiftTxList } = state - - var shapeShiftTx = { - depositAddress, - depositType, - key: 'shapeshift', - time: new Date().getTime(), - response: {}, - } - - if (!shapeShiftTxList) { - shapeShiftTxList = [shapeShiftTx] - } else { - shapeShiftTxList.push(shapeShiftTx) - } - - this.store.updateState({ shapeShiftTxList }) - this.pollForUpdates() - } - -} - -module.exports = ShapeshiftController |