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refactor version conflict detection

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Azgaar 2021-09-01 22:37:31 +03:00
parent c783301de9
commit 3762c93441
1 changed files with 59 additions and 31 deletions
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90
modules/load.js
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@ -91,50 +91,78 @@ function showUploadErrorMessage(error, URL, random) {
function uploadMap(file, callback) {
uploadMap.timeStart = performance.now();
const OLDEST_SUPPORTED_VERSION = 0.7;
const currentVersion = parseFloat(version);
const fileReader = new FileReader();
fileReader.onload = function (fileLoadedEvent) {
if (callback) callback();
document.getElementById("coas").innerHTML = ""; // remove auto-generated emblems
const result = fileLoadedEvent.target.result;
const dataLoaded = last(result) === "=" ? decodeURIComponent(atob(result)) : result; // map can be encoded base64
const data = dataLoaded.split("\r\n");
const [mapData, mapVersion] = parseLoadedResult(result);
const mapVersion = data[0].split("|")[0] || data[0];
if (mapVersion === version) return parseLoadedData(data);
const isInvalid = !mapData || isNaN(mapVersion) || mapData.length < 26 || !mapData[5];
const isUpdated = mapVersion === currentVersion;
const isAncient = mapVersion < OLDEST_SUPPORTED_VERSION;
const isNewer = mapVersion > currentVersion;
const isOutdated = mapVersion < currentVersion;
const archive = link("https://github.com/Azgaar/Fantasy-Map-Generator/wiki/Changelog", "archived version");
const parsed = parseFloat(mapVersion);
let message = "",
load = false;
if (isNaN(parsed) || data.length < 26 || !data[5]) {
message = `The file you are trying to load is outdated or not a valid .map file.
<br>Please try to open it using an ${archive}`;
} else if (parsed < 0.7) {
message = `The map version you are trying to load (${mapVersion}) is too old and cannot be updated to the current version.
<br>Please keep using an ${archive}`;
} else {
load = true;
message = `The map version (${mapVersion}) does not match the Generator version (${version}).
<br>Click OK to get map <b>auto-updated</b>. In case of issues please keep using an ${archive} of the Generator`;
}
alertMessage.innerHTML = message;
$("#alert").dialog({
title: "Version conflict",
width: "38em",
buttons: {
OK: function () {
$(this).dialog("close");
if (load) parseLoadedData(data);
}
}
});
if (isInvalid) return showUploadMessage("invalid", mapData, mapVersion);
if (isUpdated) return parseLoadedData(mapData);
if (isAncient) return showUploadMessage("ancient", mapData, mapVersion);
if (isNewer) return showUploadMessage("newer", mapData, mapVersion);
if (isOutdated) return showUploadMessage("outdated", mapData, mapVersion);
};
fileReader.readAsText(file, "UTF-8");
}
function parseLoadedResult(result) {
try {
// data can be in FMG internal format or base64 encoded
const isDelimited = result.substr(0, 10).includes("|");
const decoded = isDelimited ? result : decodeURIComponent(atob(result));
const mapData = decoded.split("\r\n");
const mapVersion = parseFloat(mapData[0].split("|")[0] || mapData[0]);
return [mapData, mapVersion];
} catch (error) {
console.error(error);
return [null, null];
}
}
function showUploadMessage(type, mapData, mapVersion) {
const archive = link("https://github.com/Azgaar/Fantasy-Map-Generator/wiki/Changelog", "archived version");
let message, title, canBeLoaded;
if (type === "invalid") {
message = `The file does not look like a valid <i>.map</i> file.<br>Please check the data format`;
title = "Invalid file";
canBeLoaded = false;
} else if (type === "ancient") {
message = `The map version you are trying to load (${mapVersion}) is too old and cannot be updated to the current version.<br>Please keep using an ${archive}`;
title = "Ancient file";
canBeLoaded = false;
} else if (type === "newer") {
message = `The map version you are trying to load (${mapVersion}) is newer than the current version.<br>Please load the file in the appropriate version`;
title = "Newer file";
canBeLoaded = false;
} else if (type === "outdated") {
message = `The map version (${mapVersion}) does not match the Generator version (${version}).<br>Click OK to get map <b>auto-updated</b>.<br>In case of issues please keep using an ${archive} of the Generator`;
title = "Outdated file";
canBeLoaded = true;
}
alertMessage.innerHTML = message;
const buttons = {
OK: function () {
$(this).dialog("close");
if (canBeLoaded) parseLoadedData(mapData);
}
};
$("#alert").dialog({title, buttons});
}
function parseLoadedData(data) {
try {
// exit customization