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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| -- AlterTable | ||
| ALTER TABLE "User" ADD COLUMN "won" BOOL; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -28,6 +28,7 @@ model User { | |
| phone String? | ||
| admin Boolean | ||
| won Boolean? | ||
| surveyResponses Response[] | ||
| } | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| import { getRandomValues } from 'node:crypto' | ||
| import { TRPCError } from '@trpc/server' | ||
| import { z } from 'zod' | ||
| import { protectedProcedure, router } from '../../trpc' | ||
|
|
||
| function getRandomIntInclusive(min: number, max: number) { | ||
| const randomBuffer = new Uint32Array(1) | ||
|
|
||
| getRandomValues(randomBuffer) | ||
|
|
||
| const randomNumber = randomBuffer[0] / (0xFFFFFFFF + 1) | ||
|
|
||
| min = Math.ceil(min) | ||
| max = Math.floor(max) | ||
| return Math.floor(randomNumber * (max - min + 1)) + min | ||
| } | ||
|
|
||
| export const luckyDrawRouter = router({ | ||
| pastWinners: protectedProcedure.query(async ({ ctx }) => { | ||
| return await ctx.prisma.user.findMany({ | ||
| where: { | ||
| won: true, | ||
| }, | ||
| }) | ||
| }), | ||
| deleteWinner: protectedProcedure.input( | ||
| z.object({ | ||
| id: z.string(), | ||
| }), | ||
| ).mutation(async ({ ctx, input }) => { | ||
| return await ctx.prisma.user.update({ | ||
| where: { | ||
| id: input.id, | ||
| }, | ||
| data: { | ||
| won: false, | ||
| }, | ||
| }) | ||
| }), | ||
| draw: protectedProcedure.mutation(async ({ ctx }) => { | ||
| const [byBooths, byWorkshops, previousWinners] = await Promise.all([ | ||
| ctx.prisma.response.groupBy({ | ||
| by: ['respondentId'], | ||
| where: { | ||
| survey: { | ||
| workshop: false, | ||
| }, | ||
| }, | ||
| having: { | ||
| surveyId: { | ||
| _count: { | ||
| gt: 1, | ||
| }, | ||
| }, | ||
| }, | ||
| }).then(r => r.map(j => j.respondentId)), | ||
| ctx.prisma.response.groupBy({ | ||
| by: ['respondentId'], | ||
| where: { | ||
| survey: { | ||
| workshop: true, | ||
| }, | ||
| }, | ||
| having: { | ||
| surveyId: { | ||
| _count: { | ||
| gt: 0, | ||
| }, | ||
| }, | ||
| }, | ||
| }).then(r => r.map(j => j.respondentId)), | ||
| ctx.prisma.user.findMany({ | ||
| where: { | ||
| won: true, | ||
| }, | ||
| }).then(u => u.map(j => j.id)), | ||
| ]) | ||
|
|
||
| const possibilities = (Array.from(new Set([...byBooths, ...byWorkshops]))).filter(j => !previousWinners.includes(j)) | ||
| if (possibilities.length === 0) { | ||
| throw new TRPCError({ | ||
| code: 'BAD_REQUEST', | ||
| message: 'No users satisfy condition', | ||
| }) | ||
| } | ||
|
|
||
| const number = getRandomIntInclusive(0, possibilities.length - 1) | ||
|
|
||
| return await ctx.prisma.user.update({ | ||
| where: { | ||
| id: possibilities[number], | ||
| }, | ||
| data: { | ||
| won: true, | ||
| }, | ||
| }) | ||
| }), | ||
| }) |