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// Author: cirakg & claude ai
// Summary: Reads every spike setting, measures lengths and characters, writes the status back, builds the screen lines.
//
// Per text field it reports: length in characters and UTF-8 bytes, the first
// 12 and last 8 characters (the test strings start with "N=<length>|" and
// end with "END", so truncation is obvious), and which of the characters
// & < > \ " { } % and non-ASCII it contains.
//
// Write-back test: on every settings change the watch writes a status line
// into the read-only "statusField" and clears "secretField". Opening the
// settings on the phone afterwards shows whether the phone displays values
// the watch wrote.
import Toybox.Application;
import Toybox.Application.Properties;
import Toybox.Lang;
import Toybox.System;
module SpikeKeys {
const TEXT_FIELDS = ["text1", "text2", "text3", "text4", "text5", "text6", "text7", "text8"];
const SECRET = "secretField";
const STATUS = "statusField";
const OTHER_FIELDS = ["switchField", "listField", "numberField", "longField"];
const HEAD_CHARS = 12;
const TAIL_CHARS = 8;
const ASCII_BACKSLASH = 92;
const ASCII_QUOTE = 34;
}
class SpikeReport {
// Lines for SpikeView, rebuilt by analyse().
var lines as Array<String> = [] as Array<String>;
// onSettingsChanged calls since the app started, and the time of the last.
var changeCount as Number = 0;
var lastChange as String = "never";
// Totals over the eight text fields, from the latest analysis.
var totalChars as Number = 0;
var totalBytes as Number = 0;
// Length of the password field when it was last read (before clearing).
var passwordReceived as Number = 0;
// The status line the watch wrote last ("" before the first change).
var lastWriteBack as String = "";
function initialize() {
}
// On start: no write-back, just show what the last sync delivered.
function analyseOnStart() as Void {
passwordReceived = readString(SpikeKeys.SECRET).length();
analyse();
}
// Settings were saved on the phone: measure, write back, show.
function settingsChanged() as Void {
changeCount++;
lastChange = clockText();
passwordReceived = readString(SpikeKeys.SECRET).length();
analyse();
lastWriteBack = "seen " + totalChars + " chars at " + lastChange + ", change #" + changeCount;
Properties.setValue(SpikeKeys.STATUS, lastWriteBack);
Properties.setValue(SpikeKeys.SECRET, "");
analyse();
}
// Rebuild every screen line from the current property values.
function analyse() as Void {
lines = [] as Array<String>;
totalChars = 0;
totalBytes = 0;
var fieldLines = [] as Array<String>;
for (var i = 0; i < SpikeKeys.TEXT_FIELDS.size(); i++) {
describeText(fieldLines, "T" + (i + 1), readString(SpikeKeys.TEXT_FIELDS[i]));
}
lines.add("Settings spike");
lines.add("Changes seen: " + changeCount);
lines.add("Last change: " + lastChange);
lines.add("Total: " + totalChars + " chars, " + totalBytes + " B");
lines.addAll(fieldLines);
lines.add("Password: got " + passwordReceived + " chars,");
lines.add(" now " + readString(SpikeKeys.SECRET).length() + " (watch clears it)");
for (var i = 0; i < SpikeKeys.OTHER_FIELDS.size(); i++) {
lines.add(SpikeKeys.OTHER_FIELDS[i] + ": " + valueText(SpikeKeys.OTHER_FIELDS[i]));
}
lines.add("Status now: " + readString(SpikeKeys.STATUS));
lines.add("Wrote: " + (lastWriteBack.equals("") ? "nothing yet" : lastWriteBack));
}
// Length, ends and special characters of one text field.
private function describeText(out as Array<String>, label as String, value as String) as Void {
var chars = value.length();
var bytes = value.toUtf8Array().size();
totalChars += chars;
totalBytes += bytes;
out.add(label + ": " + chars + " chars, " + bytes + " B");
if (chars == 0) {
return;
}
var head = part(value, 0, chars < SpikeKeys.HEAD_CHARS ? chars : SpikeKeys.HEAD_CHARS);
var tailStart = chars > SpikeKeys.TAIL_CHARS ? chars - SpikeKeys.TAIL_CHARS : 0;
out.add(" " + head + " .. " + part(value, tailStart, chars));
out.add(" has: " + specialsIn(value, chars != bytes));
}
// Which of the characters the plan worries about occur in the value.
private function specialsIn(value as String, nonAscii as Boolean) as String {
var probes = [
"&", "<", ">", SpikeKeys.ASCII_BACKSLASH.toChar().toString(),
SpikeKeys.ASCII_QUOTE.toChar().toString(), "{", "}", "%"
];
var found = "";
for (var i = 0; i < probes.size(); i++) {
if (value.find(probes[i]) != null) {
found += probes[i] + " ";
}
}
if (nonAscii) {
found += "non-ASCII";
}
return found.equals("") ? "none" : found;
}
// A property as a String; anything missing or of another type reads as "".
private function readString(key as String) as String {
var value = Properties.getValue(key);
return value instanceof String ? value : "";
}
// Any property as display text.
private function valueText(key as String) as String {
// getValue throws for unknown keys and never returns null for declared ones.
return Properties.getValue(key).toString() as String;
}
private function part(value as String, startIndex as Number, endIndex as Number) as String {
var result = value.substring(startIndex, endIndex);
return result == null ? "" : result;
}
private function clockText() as String {
var time = System.getClockTime();
return time.hour.format("%02d") + ":" + time.min.format("%02d") + ":" + time.sec.format("%02d");
}
}
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