add machineIdentityAccessToken model

backend/src/models/machineIdentityAccessToken.ts

@@ -0,0 +1,70 @@
+import { Document, Schema, Types, model } from "mongoose";
+import { boolean } from "zod";
+
+export interface IMachineIdentityAccessToken extends Document {
+    _id: Types.ObjectId;
+    machineIdentityClientSecret: Types.ObjectId;
+    isActive: boolean;
+    accessTokenLastUsed?: Date;
+    accessTokenNumUses: number;
+    accessTokenNumUsesLimit: number;
+    accessTokenTTL: number;
+    accessTokenVersion: number;
+    renewable: boolean;
+    updatedAt: Date;
+    createdAt: Date;
+}
+
+const machineIdentityAccessTokenSchema = new Schema(
+    {
+        machineIdentityClientSecret: {
+            type: Schema.Types.ObjectId,
+            ref: "MachineIdentityClientSecret",
+            required: true
+        },
+        isActive: {
+            type: Boolean,
+            default: true,
+            required: true
+        },
+        accessTokenLastUsed: {
+            type: Date,
+            required: false
+        },
+        accessTokenNumUses: {
+            // number of times access token has been used
+            type: Number,
+            default: 0,
+            required: true
+        },
+        accessTokenNumUsesLimit: {
+            // number of times access token can be used for
+            type: Number,
+            default: 0, // default: used as many times as needed
+            required: true
+        },
+        accessTokenTTL: {
+            type: Number,
+            default: 0, // default: does not expire
+            required: true
+        },
+        renewable: {
+            type: boolean,
+            default: false, // no refresh mechanism yet
+        },
+        accessTokenVersion: {
+            type: Number,
+            default: 1,
+            required: true
+        },
+    },
+    {
+        timestamps: true
+    }
+);
+
+machineIdentityAccessTokenSchema.index(
+    { machineIdentityClientSecret: 1, isActive: 1 }
+)
+
+export const MachineIdentityClientSecret = model<IMachineIdentityAccessToken>("MachineIdentityAccessToken", machineIdentityAccessTokenSchema);