Permissions require min 1

Author: ScreamingHawk

packages/primitives-cli/src/subcommands/devTools.ts

@@ -107,12 +107,15 @@ async function generateSessionsTopology(
 
   if (isLeaf || depth <= 1) {
     const permissionsCount = Math.floor((options?.seededRandom ?? Math.random)() * (options?.maxPermissions ?? 5)) + 1
+    const permissions = await Promise.all(
+      Array.from({ length: permissionsCount }, () => generateRandomPermission(options)),
+    )
     return {
       type: 'session-permissions',
       signer: randomAddress(options),
       valueLimit: randomBigInt(100n, options),
       deadline: randomBigInt(1000n, options),
-      permissions: await Promise.all(Array.from({ length: permissionsCount }, () => generateRandomPermission(options))),
+      permissions: permissions as [Permission.Permission, ...Permission.Permission[]],
     }
   }
 

packages/primitives/src/permission.ts

@@ -24,7 +24,7 @@ export type SessionPermissions = {
   signer: Address.Address
   valueLimit: bigint
   deadline: bigint
-  permissions: Permission[]
+  permissions: [Permission, ...Permission[]]
 }
 
 export const MAX_PERMISSIONS_COUNT = 2 ** 7 - 1
@@ -89,11 +89,14 @@ export function decodeSessionPermissions(bytes: Bytes.Bytes): SessionPermissions
     permissions.push(permission)
     pointer += consumed
   }
+  if (permissions.length === 0) {
+    throw new Error('No permissions')
+  }
   return {
     signer,
     valueLimit,
     deadline,
-    permissions,
+    permissions: permissions as [Permission, ...Permission[]],
   }
 }