Sergei Poljanski
0fbb6ee809
One asset per invoice from a registry (lib/crypto_asset.rb): BTC, LTC, ETH, XMR, SOL, ALGO, USDT/USDC on ERC-20/TRC-20/BEP-20/Solana/Algorand. Migration 003 generalizes the ltc_* columns to crypto_* + crypto_coin (existing LTC invoices backfilled). QR payload adapts per asset: BIP21 amount URIs where supported, bare address for tokens with a network hint on the PDF. Default addresses come from the CRYPTO_ADDRESSES secret (JSON code=>address); LTC_ADDRESS still works as legacy.
25 lines
786 B
Ruby
25 lines
786 B
Ruby
require 'bigdecimal'
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# Number formatting shared by the HTML views and the PDF so they can't drift.
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module Fmt
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module_function
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# Exchange rate: full captured precision (up to 8 dp), trailing zeros
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# trimmed, padded to at least min_dp so it reads as a rate. (4 dp matches
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# the NBG's GEL quoting.)
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def rate(value, min_dp: 4)
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int, frac = BigDecimal(value.to_s).round(8).to_s('F').split('.')
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frac = (frac || '').sub(/0+$/, '').ljust(min_dp, '0')
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"#{group(int)}.#{frac}"
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end
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# Crypto amount: up to 8 dp, trailing zeros trimmed, no padding.
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def crypto(value)
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BigDecimal(value.to_s).round(8).to_s('F').sub(/(\.\d*?)0+$/, '\1').sub(/\.$/, '')
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end
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# "1234567" -> "1,234,567"
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def group(int)
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int.reverse.gsub(/(\d{3})(?=\d)/, '\1,').reverse
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end
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end
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