add some methods to permission class

models/permission.js

@@ -1,17 +1,82 @@
 const { Model, DataTypes } = require('sequelize');
 const { sequelize } = require('.');
 
-class Permission extends Model {
+/** @type {{data: Permission[], updated: number, expired: function}} */
+let cached = {
+    data: undefined,
+    updated: 0,
+    expired: () => {
+        return (Date.now() - updated) >= 1000
+    }
+}
 
+class Permission extends Model {
+    static async cache() {
+        if (!cached.expired()) return;
+
+        cached.data = await Permission.findAll();
+        cached.updated = Date.now();
+    }
+
+    /**
+     * Get value from cache
+     * @param {number} user 
+     * @param {string} permission 
+     * @returns {Permission?}
+     */
+    static async findFromCache(user, permission) {
+        await this.cache();
+        for (const perm of cached.data) {
+            if (perm.user == userid && perm.permission == permission)
+                return perm;
+        }
+        return null;
+    }
+
+    /**
+     * Get a permission for user
+     * @param {number} user 
+     * @param {string} permission 
+     * @returns {boolean}
+     */
+    static async forUser(user, permission) {
+        await this.cache();
+        const data = await this.findFromCache(user, permission);
+        if (!data) return false;
+        return data.value != 0;
+    }
+
+    /**
+     * Set a permission for user
+     * @param {number} user
+     * @param {string} permission
+     * @param {number} value
+     * @returns {Permission}
+     */
+    static async set(user, permission, value) {
+        const existing =    await Permission.findOne({where: {user, permission}});
+
+        let perm;
+
+        if (!existing)      perm = await Permission.create({user, permission, value});
+        else                perm = await Permission.update({user, permission, value}, {where: {user, permission}});
+        await this.cache();
+
+        return perm;
+    }
+
+    static async userAllowed(user, permission) {
+        return this.forUser(user, permission);
+    }
 }
 
 Permission.structure = {
-    // id: {
-    //     type: DataTypes.BIGINT,
-    //     primaryKey: true,
-    //     autoIncrement: true,
-    //     allowNull: false
-    // },
+    id: {
+        type: DataTypes.BIGINT,
+        primaryKey: true,
+        autoIncrement: true,
+        allowNull: false
+    },
     user: {
         type: DataTypes.BIGINT,
         allowNull: false

public/announce.json

@@ -0,0 +1 @@
+{"broadcast": true, "data": {"inline": "blek! Announcement is EOL and will be shut down at 2nd July 2023. Please update your app to the latest version to stop recieiving these notifications."}}

view/layout/main.pug

@@ -31,8 +31,32 @@ html(style='overflow-y:auto' lang='en_US')
         //- UX
         meta(name='viewport' content='width=device-width, initial-scale=1')
 
+        if (process.env.APP_DEBUG == 'true')
+            style.
+                .debug_warning {
+                    margin:0;padding:0;
+                    color:darkred;
+                    font-weight:bold;
+                    font-size:16pt;
+                    position:fixed;
+                    top:50%;
+                    left:50%;
+                    transform:translate(-50%,-50%);
+                    text-align:center;
+                    pointer-events:none;
+                    opacity:0.4;
+                    text-shadow:0 2px 1px #a07060a0
+                }
+
         block head 
     body(style='overflow-y:auto')
+        if (process.env.APP_DEBUG == 'true')
+            p(class='debug_warning')
+                | Warning: THE WEBSITE IS IN DEBUG MODE!
+                br
+                | If the site is not currently running locally, please
+                br
+                | contact the maintainers and notify them of the issue.
         table(width='100%' height='100%' class='body_table')
             tr
                 td(class='side_menu')