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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | 47x 127x 127x 127x 127x 3x 3x 3x 127x 127x 127x 127x 127x 127x 127x 13x 13x 114x 114x 114x 114x 114x 114x 114x 114x 228x 114x 114x 10x 10x 2x 10x 10x 104x 104x 100x 104x 104x 1x 103x 103x 103x 103x 103x 79x 79x 103x | import { config } from "shared/config";
import {
AssignmentAlgorithm,
RemoveLotterySignupsStrategy,
} from "shared/config/eventConfigTypes";
import { AssignmentError, MongoDbError } from "shared/types/api/errors";
import { Result, makeSuccessResult } from "shared/utils/result";
import { getDynamicStartTime } from "server/features/assignment/utils/getDynamicStartTime";
import { getStartingProgramItems } from "server/features/assignment/utils/getStartingProgramItems";
import { hasStartTimeBeenLotteried } from "server/features/assignment/utils/hasStartTimeBeenLotteried";
import { partitionByHeldSignups } from "server/features/assignment/utils/partitionByHeldSignups";
import {
getValidLotterySignupProgramItems,
prepareAssignmentParams,
} from "server/features/assignment/utils/prepareAssignmentParams";
import { removeCancelledDeletedProgramItemsFromUsers } from "server/features/assignment/utils/removeInvalidProgramItemsFromUsers";
import { removeOverlapLotterySignups } from "server/features/assignment/utils/removeOverlapLotterySignups";
import { runAssignmentAlgorithm } from "server/features/assignment/utils/runAssignmentAlgorithm";
import { saveResults } from "server/features/assignment/utils/saveResults";
import { findDirectSignups } from "server/features/direct-signup/directSignupRepository";
import {
findProgramItems,
savePassedOverForLottery,
} from "server/features/program-item/programItemRepository";
import { findUsers } from "server/features/user/userRepository";
import {
AssignmentResult,
AssignmentResultStatus,
} from "server/types/resultTypes";
import { logger } from "server/utils/logger";
import { sleep } from "server/utils/sleep";
interface RunAssignmentParams {
assignmentAlgorithm: AssignmentAlgorithm;
assignmentTime: string | null;
assignmentDelay?: number;
}
export const runAssignment = async ({
assignmentAlgorithm,
assignmentTime,
assignmentDelay = 0,
}: RunAssignmentParams): Promise<
Result<AssignmentResult, MongoDbError | AssignmentError>
> => {
// If assignmentTime is null, use dynamic time
const assignmentTimeResult = assignmentTime
? makeSuccessResult(assignmentTime)
: await getDynamicStartTime();
Iif (!assignmentTimeResult.ok) {
return assignmentTimeResult;
}
const resolvedAssignmentTime = assignmentTimeResult.value;
if (assignmentDelay) {
logger.info(`Wait ${assignmentDelay / 1000}s for final requests`);
await sleep(assignmentDelay);
logger.info("Waiting done, start assignment");
}
logger.info(
`Assigning users for program items starting at ${resolvedAssignmentTime}`,
);
const programItemsResult = await findProgramItems();
Iif (!programItemsResult.ok) {
return programItemsResult;
}
const programItems = programItemsResult.value;
// The run is on a timer, so most ticks reach a start time where no lottery program item
// starts. Asked before the users, sign-ups and cleanup are loaded on its behalf.
const validLotterySignupProgramItems =
getValidLotterySignupProgramItems(programItems);
const startingLotteryProgramItems = getStartingProgramItems(
validLotterySignupProgramItems,
resolvedAssignmentTime,
);
if (startingLotteryProgramItems.length === 0) {
logger.info(
`Assignment ${resolvedAssignmentTime}: no lottery program items start at this time, nothing to do`,
);
return makeSuccessResult({
results: [],
message: `${assignmentAlgorithm} Assignment Result - No starting program items`,
algorithm: assignmentAlgorithm,
status: AssignmentResultStatus.NO_STARTING_PROGRAM_ITEMS,
});
}
const removeCancelledDeletedProgramItemsResult =
await removeCancelledDeletedProgramItemsFromUsers({
programItems,
currentProgramItems: [],
notifyAffectedDirectSignups: [],
notify: false,
});
Iif (!removeCancelledDeletedProgramItemsResult.ok) {
return removeCancelledDeletedProgramItemsResult;
}
const usersResult = await findUsers();
Iif (!usersResult.ok) {
return usersResult;
}
const directSignupsResult = await findDirectSignups();
Iif (!directSignupsResult.ok) {
return directSignupsResult;
}
const { validLotterySignupsUsers, lotteryParticipantDirectSignups } =
prepareAssignmentParams(
usersResult.value,
programItems,
directSignupsResult.value,
);
// The lottery for a start time happens once. An item already carrying a mark either had its
// lottery here, or had it elsewhere and was rescheduled onto this slot - either way its
// remaining spots go to direct sign-up rather than through a second lottery among whoever
// signed up afterwards.
const notYetLotteriedProgramItems = startingLotteryProgramItems.filter(
(programItem) =>
programItem.lotteryRanForStartTime === undefined &&
programItem.passedOverForLottery !== true,
);
const lotteriedHere = hasStartTimeBeenLotteried(
programItems,
resolvedAssignmentTime,
);
if (
startingLotteryProgramItems.length > 0 &&
(lotteriedHere || notYetLotteriedProgramItems.length === 0)
) {
logger.info(
`Start time ${resolvedAssignmentTime} has already been lotteried, stop`,
);
// Recorded rather than lotteried: they arrived after the hour was decided, so this is what
// puts them on direct sign-up and keeps them there once their sign-ups change. The lottery
// sign-ups they carry are for a lottery that has been run, so nothing removes them.
const passedOverResult = await savePassedOverForLottery(
notYetLotteriedProgramItems.map(
(programItem) => programItem.programItemId,
),
);
Iif (!passedOverResult.ok) {
return passedOverResult;
}
return makeSuccessResult({
results: [],
message: `${assignmentAlgorithm} Assignment Result - Lottery has already been run for this start time`,
algorithm: assignmentAlgorithm,
status: AssignmentResultStatus.ALREADY_LOTTERIED,
});
}
const { emptyProgramItems, occupiedProgramItems } = partitionByHeldSignups(
notYetLotteriedProgramItems,
directSignupsResult.value,
resolvedAssignmentTime,
);
if (emptyProgramItems.length > 0) {
logger.info(
`Assignment ${resolvedAssignmentTime}: lotterying ${emptyProgramItems.length} program items for ${validLotterySignupsUsers.length} users with ${assignmentAlgorithm}`,
);
}
const assignResultsResult = runAssignmentAlgorithm(
assignmentAlgorithm,
validLotterySignupsUsers,
emptyProgramItems,
resolvedAssignmentTime,
lotteryParticipantDirectSignups,
programItems,
);
if (!assignResultsResult.ok) {
return assignResultsResult;
}
const assignResults = assignResultsResult.value;
const saveResultsResult = await saveResults({
results: assignResults.results,
assignmentTime: resolvedAssignmentTime,
algorithm: assignResults.algorithm,
message: assignResults.message,
users: validLotterySignupsUsers,
programItems,
lotteriedProgramItems: emptyProgramItems,
// The occupied ones are recorded as passed over rather than lotteried, which is what they
// were, and what keeps their sign-up open once those sign-ups are cancelled
passedOverProgramItems: occupiedProgramItems,
});
Iif (!saveResultsResult.ok) {
return saveResultsResult;
}
// Only the attendees who actually got a spot. Acting on the algorithm's proposal instead
// would strip the lottery sign-ups of someone a dropped result left with nothing, and those
// cannot be re-added once the sign-up window has closed.
const savedResults = saveResultsResult.value;
if (
savedResults.length > 0 &&
config.event().removeLotterySignupsStrategy !==
RemoveLotterySignupsStrategy.NONE
) {
const removeOverlapSignupsResult = await removeOverlapLotterySignups(
savedResults,
validLotterySignupProgramItems,
resolvedAssignmentTime,
);
Iif (!removeOverlapSignupsResult.ok) {
// The spots are saved and the start time closed by now, so reporting a failure here
// would call a lottery that finished a failure. It leaves an attendee holding a lottery
// sign-up for an hour they have already been placed at, which an admin can remove.
logger.error(
new Error(
`Assignment ${resolvedAssignmentTime}: failed to remove overlapping lottery sign-ups: ${removeOverlapSignupsResult.error}`,
),
);
}
}
return makeSuccessResult({ ...assignResults, results: savedResults });
};
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