require 'net/http'

class PaykassaPay 
    BASE_URL = "https://paykassa.app/api/0.5/index.php"
    RATE_URL = "https://currency.paykassa.pro/index.php"
    CURRENCIES=[
        "USD", "RUB", "BTC", "ETH", "LTC", "DOGE", "DASH", "BCH", "ZEC",
        "XRP", "TRX", "XLM", "BNB", "USDT", "ADA", "EOS", "GBP", "EUR", 
        "USDC", "BUSD"
    ]
    SYSTEM_IDS = {
        perfectmoney: 2,
        berty: 7,
        bitcoin: 11,
        ethereum: 12,
        litecoin: 14,
        dogecoin: 15,
        dash: 16,
        bitcoincash: 18,
        zcash: 19,
        ripple: 22,
        tron: 27,
        stellar: 28,
        binancecoin: 29,
        tron_trc20: 30,
        binancesmartchain_bep20: 31, # available currencies USDT, BUSD, USDC, ADA, EOS, BTC, ETH, DOGE    
        ethereum_erc20: 32
    }
    def initialize(domain:, api_id:, api_key:, test: false)
        @token = api_key
        @_auth = {domain: domain, api_id: api_id, api_key: api_key, test: test}
    end
    def pay(amount: , shop: , currency: , system_name: , paid_commission: "shop", number:, tag:, priority:)
        data = {
            amount: amount, 
            shop: shop, 
            currency: currency,
            system: SYSTEM_IDS[system_name],
            paid_commision: paid_commision,
            number: number, 
            tag: tag, 
            priority: priority
        }
        make_request("api_payment",data)
    end
    def balance(shop: ) 
        data = {
            shop: shop,
            pi_id: api_id, 
            api_key: api_key
        }
        make_request("api_get_shop_balance", data, false)
    end
    def currency_rate(inn:,out:)
        if !CURRENCIES.include? inn 
            raise "#{inn} not include in currencies: #{CURRENCIES}"
        end
        if !CURRENCIES.include? out 
            raise "#{out} not include in currencies: #{CURRENCIES}"
        end
        data = {
            currency_in: inn, 
            currency_out: out
        }
        make_request(
            nil,
            data,
            false, 
            RATE_URL
        )
    end
    private
    def  make_request(func,data,merge_auth = true, url= nil)
        data = data.merge({func: func}) if func
        data = data.merge(@_auth) if merge_auth
        url = BASE_SCI_URI if url.nil?
        res = Net::HTTP.post_form(url, data)
        JSON.parse(res.body).deep_symbolize_keys
    end

end