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import {
DeleteLotterySignupResponse,
PostLotterySignupResponse,
} from "shared/types/api/myProgramItems";
import { SignupType, State } from "shared/types/models/programItem";
import { getProgramItemValidity } from "shared/utils/getProgramItemValidity";
import {
getLotterySignupEndTime,
getLotterySignupStartTime,
willNotBeLotteried,
} from "shared/utils/signupTimes";
import { isSameOrAfter } from "shared/utils/timeComparison";
import { getTimeNow } from "server/features/assignment/utils/getTimeNow";
import { findProgramItemById } from "server/features/program-item/programItemRepository";
import { findOrCreateSettings } from "server/features/settings/settingsRepository";
import {
delLotterySignups,
saveLotterySignup,
} from "server/features/user/lottery-signup/lotterySignupRepository";
import { findUser } from "server/features/user/userRepository";
import { hasSignupEnded } from "server/features/user/userUtils";
import { logger } from "server/utils/logger";
const validPriorities = new Set([1, 2, 3]);
interface StoreLotterySignupParams {
programItemId: string;
priority: number;
username: string;
}
export const storeLotterySignup = async ({
programItemId,
priority,
username,
}: StoreLotterySignupParams): Promise<PostLotterySignupResponse> => {
if (!validPriorities.has(priority)) {
return {
errorId: "invalidPriority",
message: `Invalid priority: ${priority}`,
status: "error",
};
}
const programItemResult = await findProgramItemById(programItemId);
if (!programItemResult.ok) {
return {
message: `Program item not found: ${programItemId}`,
status: "error",
errorId: "programItemNotFound",
};
}
const programItem = programItemResult.value;
if (programItem.signupType !== SignupType.KONSTI) {
return {
message: "No Konsti signup for this program item",
status: "error",
errorId: "noKonstiSignup",
};
}
if (programItem.state === State.CANCELLED) {
return {
message: "Program item is cancelled",
status: "error",
errorId: "cancelled",
};
}
// Invalid program items have their sign-up disabled in the client, but a
// sign-up can still arrive from a stale or bugged page
if (!getProgramItemValidity(programItem).allValuesValid) {
return {
message: "Program item is missing required information",
status: "error",
errorId: "invalidProgramItem",
};
}
// Hidden program items are only filtered from the client's list view, so a
// sign-up for one can still arrive from a stale page or a direct link
const settingsResult = await findOrCreateSettings();
Iif (!settingsResult.ok) {
return {
message: "Error loading settings",
status: "error",
errorId: "unknown",
};
}
if (settingsResult.value.hiddenProgramItemIds.includes(programItemId)) {
return {
message: "Program item is hidden",
status: "error",
errorId: "hidden",
};
}
const timeNowResult = await getTimeNow();
Iif (!timeNowResult.ok) {
return {
message: "Unable to get current time",
status: "error",
errorId: "unknown",
};
}
const timeNow = timeNowResult.value;
// A program item is lotteried at most once, and one already holding sign-ups is not lotteried
// at all. Either way the sign-up window these times are derived from can still be open - a
// move reopens it, and a program item passed over is marked while it is - so without this a
// sign-up could be made to a lottery that will not happen.
if (willNotBeLotteried(programItem)) {
return {
message: `Program item ${programItemId} does not take part in a lottery`,
status: "error",
errorId: "lotteryAlreadyRun",
};
}
const lotterySignupStartTime = getLotterySignupStartTime(programItem);
if (!isSameOrAfter(timeNow, lotterySignupStartTime)) {
// String rather than toISOString, which throws on an unparseable date - the
// very case this branch exists to report
const message = `Signup for program item ${programItemId} not open yet, opens ${String(lotterySignupStartTime)}`;
logger.warn(message);
return {
errorId: "signupNotOpenYet",
message,
status: "error",
};
}
const lotterySignupEndTime = getLotterySignupEndTime(programItem);
const signupEnded = hasSignupEnded({
signupEndTime: lotterySignupEndTime,
timeNow,
});
if (signupEnded) {
return {
errorId: "signupEnded",
message: `Signup for program item ${programItemId} has ended at ${lotterySignupEndTime.toISOString()}`,
status: "error",
};
}
const userResult = await findUser(username);
Iif (!userResult.ok) {
return {
message: "Error finding user",
status: "error",
errorId: "unknown",
};
}
const user = userResult.value;
if (!user) {
return {
message: "Error finding user",
status: "error",
errorId: "unknown",
};
}
// Group members don't make their own lottery sign-ups; the group creator signs up for the group
if (user.groupCode !== "0" && !user.isGroupCreator) {
return {
message: "Group member cannot create lottery signups",
status: "error",
errorId: "groupMember",
};
}
const priorityReserved = user.lotterySignups.some(
(lotterySignup) =>
isEqual(
new Date(lotterySignup.signedToStartTime),
new Date(programItem.startTime),
) && lotterySignup.priority === priority,
);
if (priorityReserved) {
return {
message: "Duplicate priority score found",
status: "error",
errorId: "samePriority",
};
}
const lotterySignup = {
programItemId,
priority,
// Lottery sign-ups always store the item's own startTime; parent override is only used for lottery batching
signedToStartTime: programItem.startTime,
};
const responseResult = await saveLotterySignup({
lotterySignup,
username,
});
Iif (!responseResult.ok) {
return {
message: "Signup failure",
status: "error",
errorId: "unknown",
};
}
return {
message: "Lottery signup success",
status: "success",
lotterySignups: responseResult.value.lotterySignups,
};
};
export const removeLotterySignup = async (
lotterySignupProgramItemId: string,
username: string,
): Promise<DeleteLotterySignupResponse> => {
const programItemResult = await findProgramItemById(
lotterySignupProgramItemId,
);
if (!programItemResult.ok) {
return {
message: `Program item not found: ${lotterySignupProgramItemId}`,
status: "error",
errorId: "programItemNotFound",
};
}
const timeNowResult = await getTimeNow();
Iif (!timeNowResult.ok) {
return {
message: "Unable to get current time",
status: "error",
errorId: "unknown",
};
}
const lotterySignupEndTime = getLotterySignupEndTime(programItemResult.value);
const signupEnded = hasSignupEnded({
signupEndTime: lotterySignupEndTime,
timeNow: timeNowResult.value,
});
if (signupEnded) {
return {
errorId: "signupEnded",
message: `Signup for program item ${lotterySignupProgramItemId} has ended at ${lotterySignupEndTime.toISOString()}`,
status: "error",
};
}
const responseResult = await delLotterySignups([
{
lotterySignupProgramItemIds: [lotterySignupProgramItemId],
username,
},
]);
Iif (!responseResult.ok) {
return {
message: "Removing lottery signup failed",
status: "error",
errorId: "unknown",
};
}
return { message: "Lottery signup remove success", status: "success" };
};
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