/*
 This file is part of TALER
 (C) 2015 GNUnet e.V.

 TALER is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 TALER is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
 */
// Script that is injected into pages in order to allow merchants pages to
// query the availability of Taler.
/// <reference path="../lib/decl/chrome/chrome.d.ts" />
"use strict";
console.log("Taler injected");
function subst(url, H_contract) {
    url = url.replace("${H_contract}", H_contract);
    url = url.replace("${$}", "$");
    return url;
}
document.addEventListener("taler-probe", function (e) {
    var evt = new Event("taler-wallet-present");
    document.dispatchEvent(evt);
    console.log("handshake done");
});
document.addEventListener("taler-create-reserve", function (e) {
    var $ = function (x) { return document.getElementById(x); };
    console.log("taler-create-reserve with " + JSON.stringify(e.detail));
    var form_uri = $(e.detail.form_id).action;
    // TODO: validate event fields
    // TODO: also send extra bank-defined form fields
    var params = {
        post_url: URI(form_uri).absoluteTo(document.location.href).href(),
        // TODO: This should change in the future, we should not deal with the
        // amount as a bank-specific string here.
        amount_str: $(e.detail.input_amount).value,
        // TODO:  This double indirection is way too much ...
        field_amount: $(e.detail.input_amount).name,
        field_reserve_pub: $(e.detail.input_pub).name,
        field_mint: $(e.detail.mint_rcv).name,
    };
    var uri = URI(chrome.extension.getURL("pages/confirm-create-reserve.html"));
    document.location.href = uri.query(params).href();
});
document.addEventListener("taler-contract", function (e) {
    // XXX: the merchant should just give us the parsed data ...
    var offer = JSON.parse(e.detail);
    var uri = URI(chrome.extension.getURL("pages/confirm-contract.html"));
    var params = {
        offer: JSON.stringify(offer),
        merchantPageUrl: document.location.href,
        cookie: document.cookie,
    };
    document.location.href = uri.query(params).href();
});
document.addEventListener('taler-execute-payment', function (e) {
    console.log("got taler-execute-payment in content page");
    if (!e.detail.pay_url) {
        console.log("field 'pay_url' missing in taler-execute-payment event");
        return;
    }
    var payUrl = e.detail.pay_url;
    var msg = {
        type: "execute-payment",
        detail: {
            H_contract: e.detail.H_contract,
        },
    };
    chrome.runtime.sendMessage(msg, function (resp) {
        if (!resp.success) {
            console.log("failure!");
            return;
        }
        var contract = resp.contract;
        if (!contract) {
            throw Error("contract missing");
        }
        var payReq = Object.assign({}, resp.payReq);
        if (e.detail.require_contract) {
            payReq.contract = contract;
        }
        console.log("Making request to ", payUrl);
        var r = new XMLHttpRequest();
        r.open('post', payUrl);
        r.send(JSON.stringify(payReq));
        r.onload = function () {
            switch (r.status) {
                case 200:
                    console.log("going to", contract.fulfillment_url);
                    window.location.href = subst(contract.fulfillment_url, e.detail.H_contract);
                    window.location.reload(true);
                    break;
                default:
                    console.log("Unexpected status code for $pay_url:", r.status);
                    break;
            }
        };
    });
});
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