for refactor

jsonGenerate.js

function genetationJSON(res) {

   
        let f = [{
            item: {
                from: "____XML1",
                to: "____XML2",
                in: "____rateIn",
                out: "____rateOut",
                amount: "____reserve",
                param: 'manual',
                minamount: "____minamount"
            }
        }];

        let from = {};
        let aliases = [''];
        let reserve = {};
        for (let i in f) {
            if (aliases.indexOf(f[i].item.from) === -1) {
                aliases.push(f[i].item.from)
            }
            if (aliases.indexOf(f[i].item.to) === -1) {
                aliases.push(f[i].item.to)
            }
            const from_index = aliases.indexOf(f[i].item.from);
            const to_index = aliases.indexOf(f[i].item.to);
            reserve[to_index] = (f[i].item.amount === 0) ? undefined : f[i].item.amount;
            if (!from[from_index])
                from[from_index] = {
                    to: {},
                    in_min_amount: (f[i].item.minamount === 0) ? undefined : f[i].item.minamount
                };

            let rate = {
                in: (f[i].item.in === 1) ? undefined : f[i].item.in,
                out: (f[i].item.out === 1) ? undefined : f[i].item.out,
                in_min_amount: (from[from_index].in_min_amount === f[i].item.minamount) ? undefined : f[i].item.minamount
            };

            if (!rate.in_min_amount && !rate.in && !rate.out) {
                rate = 1;
            } else if (!rate.in_min_amount && (!!rate.in || !!rate.out)) {
                if (rate.in)
                    rate = rate.in;
                if (rate.out)
                    rate = -rate.out;
            }

            from[from_index].to[to_index] = rate;
        }
        aliases[0] = undefined;
        return {
            exchanges: {
                currencies: {
                    aliases: Object.assign({}, aliases),
                    amounts: reserve
                },
                from: from,
                options: ["manual"]
            }
        };
}