Function operation

packages/api/src/router/server.ts:136–202

()

		.mutation(async ({ input, ctx }) =>
			protectedMutationFetchFirst({
				async operation() {
					const { serverId, customDomain: newCustomDomain } = input;
					try {
						const oldServerInfo = await findServerById(serverId);
						if (!oldServerInfo) {
							throw new TRPCError({
								code: 'NOT_FOUND',
								message: 'Server not found',
							});
						}

						const isValidDomain =
							validDomainRegex.test(newCustomDomain) || newCustomDomain === '';
						if (!isValidDomain) {
							throw new TRPCError({
								code: 'BAD_REQUEST',
								message: 'Invalid domain',
							});
						}

						if (newCustomDomain.toLowerCase().endsWith('.answeroverflow.com')) {
							throw new TRPCError({
								code: 'BAD_REQUEST',
								message:
									'Domain cannot end with .answeroverflow.com. Please use a domain that you own',
							});
						}

						const response = await updateServer({
							existing: oldServerInfo,
							update: {
								customDomain: newCustomDomain === '' ? null : newCustomDomain,
								id: serverId,
							},
						});
						await addDomainToVercel(newCustomDomain);

						// if the site had a different customDomain before, we need to remove it from Vercel
						if (
							oldServerInfo.customDomain &&
							oldServerInfo.customDomain !== newCustomDomain
						) {
							await removeDomainFromVercelProject(oldServerInfo.customDomain);
						}

						// TODO: Update cache?

						return response;
					} catch (error: any) {
						if (
							'code' in error &&
							// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
							error.code === 'P2002'
						) {
							throw new TRPCError({
								code: 'BAD_REQUEST',
								message: `Domain ${newCustomDomain} already in use`,
							});