const { ReportAuthorizationKey, MemoType } = require("tcn-node").native;
const assert = require("assert");

// Generate a report authorization key.  This key represents the capability
// to publish a report about a collection of derived temporary contact numbers.
let rak = new ReportAuthorizationKey();

// Use the temporary contact key ratchet mechanism to compute a list
// of temporary contact numbers.
let tck = rak.initial_temporary_contact_key(); // tck <- tck_1
let tcns = [];
for (let i = 0; i < 100; i++) {
  tcns.push(tck.temporary_contact_number());
  tck = tck.ratchet();
}

// Prepare a report about a subset of the temporary contact numbers.
let signed_report = rak.create_report(
  MemoType.CoEpiV1, // The memo type
  Buffer.from("symptom data"), // The memo data
  20, // Index of the first TCN to disclose
  90 // Index of the last TCN to check
);

// Verify the source integrity of the report...
let report = signed_report.verify();
// ...allowing the disclosed TCNs to be recomputed.
let recomputed_tcns = report.temporary_contact_numbers();

// Check that the recomputed TCNs match the originals.
// The slice is offset by 1 because tcn_0 is not included.
assert.deepEqual(recomputed_tcns, tcns.slice(20 - 1, 90 - 1));

const { tcnExample, signedReportExample, validateReport } = require("tcn-node");

console.log(tcnExample()); // => "symptom data"

console.log(signedReportExample()); // => generates a signed report as JSON

console.log(validateReport(signedReportExample())); // => true

console.log(
  validateReport({
    report: {
      rvk: [
        205,
        234,
        147,
        231,
        210,
        96,
        99,
        128,
        241,
        255,
        168,
        61,
        243,
        222,
        144,
        41,
        194,
        92,
        112,
        118,
        140,
        98,
        90,
        38,
        156,
        32,
        216,
        117,
        171,
        14,
        206,
        117,
      ],
      tck_bytes: [
        5,
        44,
        47,
        43,
        14,
        249,
        162,
        165,
        139,
        157,
        225,
        217,
        38,
        77,
        151,
        140,
        247,
        198,
        138,
        23,
        208,
        188,
        229,
        189,
        20,
        101,
        126,
        83,
        216,
        18,
        194,
        19,
      ],
      j_1: 20,
      j_2: 90,
      memo_type: "CoEpiV1",
      memo_data: [115, 121, 109, 112, 116, 111, 109, 32, 100, 97, 116, 97],
    },
    sig: {
      R_bytes: [
        171,
        0,
        174,
        55,
        138,
        201,
        100,
        209,
        69,
        98,
        176,
        85,
        27,
        240,
        129,
        22,
        204,
        209,
        89,
        245,
        9,
        31,
        170,
        4,
        1,
        69,
        243,
        251,
        36,
        31,
        249,
        192,
      ],
      s_bytes: [
        250,
        99,
        139,
        105,
        167,
        126,
        136,
        208,
        253,
        158,
        225,
        46,
        81,
        179,
        50,
        90,
        113,
        63,
        235,
        163,
        172,
        193,
        251,
        86,
        76,
        118,
        188,
        170,
        16,
        252,
        132,
        8,
      ],
    },
  })
); // => true