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More work on permission utils and eager permission checks

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Dragory 2020-08-07 01:21:31 +03:00
parent 8af64a6944
commit 6d4a7cdafd
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11 changed files with 189 additions and 79 deletions
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17
backend/src/utils/getMissingPermissions.ts Normal file
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import { Constants, Permission } from "eris";
/**
* @param resolvedPermissions A Permission object from e.g. GuildChannel#permissionsOf() or Member#permission
* @param requiredPermissions Bitmask of required permissions
* @return Bitmask of missing permissions
*/
export function getMissingPermissions(resolvedPermissions: Permission, requiredPermissions: number | bigint): bigint {
const allowedPermissions = BigInt(resolvedPermissions.allow);
const nRequiredPermissions = BigInt(requiredPermissions);
if (Boolean(allowedPermissions & BigInt(Constants.Permissions.administrator))) {
return BigInt(0);
}
return nRequiredPermissions & ~allowedPermissions;
}