63 lines
1.5 KiB
Lua
Executable File
63 lines
1.5 KiB
Lua
Executable File
local currency = {}
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local HTTPS = require('ssl.https')
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local bindings = require('bindings')
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local utilities = require('utilities')
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currency.command = 'cash [amount] <from> to <to>'
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currency.doc = [[```
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/cash [amount] <from> to <to>
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Example: /cash 5 USD to EUR
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Returns exchange rates for various currencies.
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Source: Google Finance.
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```]]
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function currency:init()
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currency.triggers = utilities.triggers(self.info.username):t('cash', true).table
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end
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function currency:action(msg)
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local input = msg.text:upper()
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if not input:match('%a%a%a TO %a%a%a') then
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bindings.sendMessage(self, msg.chat.id, currency.doc, true, msg.message_id, true)
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return
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end
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local from = input:match('(%a%a%a) TO')
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local to = input:match('TO (%a%a%a)')
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local amount = utilities.get_word(input, 2)
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amount = tonumber(amount) or 1
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local result = 1
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local url = 'https://www.google.com/finance/converter'
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if from ~= to then
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url = url .. '?from=' .. from .. '&to=' .. to .. '&a=' .. amount
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local str, res = HTTPS.request(url)
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if res ~= 200 then
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bindings.sendReply(self, msg, self.config.errors.connection)
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return
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end
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str = str:match('<span class=bld>(.*) %u+</span>')
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if not str then
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bindings.sendReply(self, msg, self.config.errors.results)
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return
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end
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result = string.format('%.2f', str)
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end
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local output = amount .. ' ' .. from .. ' = ' .. result .. ' ' .. to .. '\n\n'
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output = output .. os.date('!%F %T UTC') .. '\nSource: Google Finance'
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output = '`' .. output .. '`'
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bindings.sendMessage(self, msg.chat.id, output, true, nil, true)
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end
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return currency
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