feat: sortie rotation #1453
@ -11,7 +11,8 @@ import { config } from "@/src/services/configService";
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import { CRng } from "@/src/services/rngService";
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import { ExportNightwave, ExportRegions } from "warframe-public-export-plus";
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import {
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    getTorontoTimeAtHour,
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    EPOCH,
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    getSortieTime,
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    missionTags,
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    sortieBosses,
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    sortieBossNode,
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@ -20,8 +21,6 @@ import {
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    sortieFactionToSystemIndexes
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} from "@/src/helpers/worlstateHelper";
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const EPOCH = 1734307200 * 1000; // Monday, Dec 16, 2024 @ 00:00 UTC+0; should logically be winter in 1999 iteration 0
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export const worldStateController: RequestHandler = (req, res) => {
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    const day = Math.trunc((Date.now() - EPOCH) / 86400000);
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    const week = Math.trunc(day / 7);
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@ -166,10 +165,23 @@ export const worldStateController: RequestHandler = (req, res) => {
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    // Sortie cycling every day
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    {
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        const dayStart = getTorontoTimeAtHour(EPOCH + day * 86400000, 12);
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        const dayEnd = getTorontoTimeAtHour(EPOCH + (day + 1) * 86400000, 12);
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        let genDay;
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        let dayStart;
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        let dayEnd;
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        const sortieRolloverToday = getSortieTime(day);
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        if (Date.now() < sortieRolloverToday) {
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            // Early in the day, generate sortie for `day - 1`, expiring at `sortieRolloverToday`.
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            genDay = day - 1;
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            dayStart = getSortieTime(genDay);
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            dayEnd = sortieRolloverToday;
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        } else {
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            // Late in the day, generate sortie for `day`, expiring at `getSortieTime(day + 1)`.
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            genDay = day;
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            dayStart = getSortieTime(genDay);
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            dayEnd = getSortieTime(day + 1);
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        }
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        const rng = new CRng(day);
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        const rng = new CRng(genDay);
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        const boss = rng.randomElement(sortieBosses);
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@ -281,7 +293,7 @@ export const worldStateController: RequestHandler = (req, res) => {
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            Activation: { $date: { $numberLong: dayStart.toString() } },
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            Expiry: { $date: { $numberLong: dayEnd.toString() } },
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            Reward: "/Lotus/Types/Game/MissionDecks/SortieRewards",
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            Seed: day,
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            Seed: genDay,
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            Boss: boss,
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            Variants: selectedNodes
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        });
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@ -113,28 +113,18 @@ export const sortieBossNode: Record<string, string> = {
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    SORTIE_BOSS_INFALAD: "SolNode705"
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};
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// ChatGPT generated that. And seems it works fine
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export const getTorontoTimeAtHour = (date: number, hour: number): number => {
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    const formatter = new Intl.DateTimeFormat("en-US", {
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export const EPOCH = 1734307200 * 1000; // Monday, Dec 16, 2024 @ 00:00 UTC+0; should logically be winter in 1999 iteration 0
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export const getSortieTime = (day: number): number => {
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    const dayStart = EPOCH + day * 86400000;
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    const date = new Date(dayStart);
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    date.setUTCHours(12);
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    const isDst = new Intl.DateTimeFormat("en-US", {
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        timeZone: "America/Toronto",
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        year: "numeric",
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        month: "2-digit",
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        day: "2-digit"
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    });
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    const parts = formatter.formatToParts(date).reduce<Record<string, string>>((acc, { type, value }) => {
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        if (["year", "month", "day"].includes(type)) {
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            acc[type] = value;
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        }
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        return acc;
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    }, {});
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    const assumedLocalDate = new Date(
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        `${parts.year}-${parts.month}-${parts.day}T${hour.toString().padStart(2, "0")}:00:00`
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    );
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    const localDate = new Date(assumedLocalDate.toLocaleString("en-US", { timeZone: "America/Toronto" }));
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    const offsetMs = assumedLocalDate.getTime() - localDate.getTime();
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    return assumedLocalDate.getTime() + offsetMs;
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        timeZoneName: "short"
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    })
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        .formatToParts(date)
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        .find(part => part.type === "timeZoneName")!
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        .value.includes("DT");
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    return dayStart + (isDst ? 16 : 17) * 3600000;
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};
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