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48 lines
1.5 KiB
CoffeeScript
48 lines
1.5 KiB
CoffeeScript
Promise = require "bluebird"
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router = require("express-promise-router")()
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moment = require "moment"
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bip21 = require "bip21"
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qrImage = require "qr-image"
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rfr = require "rfr"
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getRates = rfr "lib/get-rates"
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parseAmount = rfr "lib/parse-amount"
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getBip21 = (address, amount) ->
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bip21.encode(address, amount: amount, label: "PDFy donation")
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router.get "/", (req, res) ->
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Promise.try ->
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getRates()
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.then (rates) ->
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res.render "donate",
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rates: rates
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currentMonth: moment().format "MMMM YYYY"
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router.get "/convert/:currency", (req, res) ->
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Promise.try ->
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getRates()
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.then (rates) ->
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# Floats for money are evil and all that, but we only need approximate numbers here, so it's all fine here. Don't do this where precision is required, though!
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if req.query.amount? and req.params.currency.toUpperCase() of rates
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res.send (rates[req.params.currency.toUpperCase()] * parseFloat(req.query.amount)).toString()
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else
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req.reportError(new Error("Unknown currency specified: #{req.params.currency}"), "warning")
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Promise.reject new Http422Error "No such currency exists."
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router.get "/bip21", (req, res) ->
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Promise.try ->
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res.send getBip21(req.appConfig.donations.bitcoinAddress, parseAmount(req.query.amount))
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router.get "/bip21/qr", (req, res) ->
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qrImage.image(getBip21(req.appConfig.donations.bitcoinAddress, parseAmount(req.query.amount)), type: "png", size: 3, margin: 1)
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.pipe res
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router.get "/faq", (req, res) ->
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res.render "donation-faq"
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router.get "/thanks", (req, res) ->
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res.render "donate-thanks"
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module.exports = router
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