import {Updater} from "./Updater";
import {ChangeLog} from "tc-shared/update/ChangeLog";
import {spawnUpdatedModal} from "tc-shared/ui/modal/whats-new/Controller";

let updaterUi: Updater;
let updaterNative: Updater;

export function setUIUpdater(updater: Updater) {
    if(typeof updaterUi !== "undefined") {
        throw tr("An UI updater has already been registered");
    }
    updaterUi = updater;
}

export function setNativeUpdater(updater: Updater) {
    if(typeof updaterNative !== "undefined") {
        throw tr("An native updater has already been registered");
    }
    updaterNative = updater;
}

function getChangedChangeLog(updater: Updater) : ChangeLog | undefined {
    if(updater.getCurrentVersion() === updater.getLastUsedVersion())
        return undefined;

    let changes = {
        changes: [],
        currentVersion: updater.getCurrentVersion()
    } as ChangeLog;

    let usedVersion = updater.getLastUsedVersion();
    for(const change of updater.getChangeLog().changes) {
        if(change.timestamp === usedVersion)
            break;

        changes.changes.push(change);
    }

    return changes.changes.length > 0 ? changes : undefined;
}

export function checkForUpdatedApp() {
    let changesUI = updaterUi ? getChangedChangeLog(updaterUi) : undefined;
    let changesNative = updaterNative ? getChangedChangeLog(updaterNative) : undefined;

    if(changesUI !== undefined || changesNative !== undefined) {
        spawnUpdatedModal({
            changesUI: changesUI,
            changesClient: changesNative
        });

        updaterUi?.updateUsedVersion();
        updaterNative?.updateUsedVersion();
    }
}