Profile interface and web components lifecycle improvements

components/user-profile/contributionActivity.js

@@ -1,21 +1,28 @@
 import TPEN from '../../api/TPEN.js'
-import User from '../../api/User.js'
 import Project from '../../api/Project.js'
 import { CleanupRegistry } from '../../utilities/CleanupRegistry.js'
+import { onUserReady } from '../../utilities/userReady.js'
+import { onUserProjectsReady } from '../../utilities/userProjectsReady.js'
 
 /**
  * ContributionActivity - Displays user's contribution activity across projects.
  * @element contribution-activity
  */
 class ContributionActivity extends HTMLElement {
-    static get observedAttributes() {
-        return ['tpen-user-id']
-    }
-
     /** @type {CleanupRegistry} Registry for cleanup handlers */
     cleanup = new CleanupRegistry()
     /** @type {CleanupRegistry} Registry for render-specific handlers */
     renderCleanup = new CleanupRegistry()
+    /** @type {Function|null} Unsubscribe function for user ready listener */
+    _unsubUser = null
+    /** @type {Function|null} Unsubscribe function for projects ready listener */
+    _unsubProjects = null
+    /** @type {Object|null} Cached profile data */
+    _profile = null
+    /** @type {Array|null} Cached projects data */
+    _projects = null
+    /** @type {boolean} Flag to prevent double rendering */
+    _isRendering = false
 
     constructor() {
         super()
@@ -24,34 +31,43 @@ class ContributionActivity extends HTMLElement {
 
     connectedCallback() {
         TPEN.attachAuthentication(this)
-        this.cleanup.onEvent(TPEN.eventDispatcher, 'tpen-user-loaded', () => this.loadAndRender())
+        this._unsubUser = onUserReady(this, (user) => {
+            this._profile = user
+            this.renderIfReady()
+        })
+        this._unsubProjects = onUserProjectsReady(this, (projects) => {
+            this._projects = projects
+            this.renderIfReady()
+        })
     }
 
     /**
-     * Loads user projects and renders the contribution activity.
+     * Renders only when both profile and projects are available.
+     * Guards against double rendering when both callbacks fire quickly.
+     */
+    renderIfReady() {
+        if (this._profile && this._projects && !this._isRendering) {
+            this._isRendering = true
+            this.loadAndRender()
+                .finally(() => { this._isRendering = false })
+        }
+    }
+
+    /**
+     * Processes cached projects and renders the contribution activity.
      */
     async loadAndRender() {
-        const projects = await TPEN.getUserProjects(TPEN.getAuthorization())
+        const projects = this._projects
         await this.processAndRender(projects)
     }
 
     disconnectedCallback() {
+        try { this._unsubUser?.() } catch {}
+        try { this._unsubProjects?.() } catch {}
         this.renderCleanup.run()
         this.cleanup.run()
     }
 
-    attributeChangedCallback(name, oldValue, newValue) {
-        if (name === 'tpen-user-id') {
-            if (oldValue !== newValue) {
-                const currVal = this?.user?._id
-                if (newValue === currVal) return
-                const loadedUser = new User(newValue)
-                loadedUser.authentication = TPEN.getAuthorization()
-                loadedUser.getProfile()
-            }
-        }
-    }
-
     /**
      * Processes project data and renders the contribution activity.
      * @param {Array} projects - Array of project data

components/user-profile/index.js

@@ -1,20 +1,19 @@
 import TPEN from '../../api/TPEN.js'
-import User from '../../api/User.js'
 import { CleanupRegistry } from '../../utilities/CleanupRegistry.js'
+import { onUserReady } from '../../utilities/userReady.js'
 
 /**
  * UserProfile - Displays and allows editing of user profile information.
  * @element tpen-user-profile
  */
 class UserProfile extends HTMLElement {
-    static get observedAttributes() {
-        return ['tpen-user-id']
-    }
     user = TPEN.currentUser
     /** @type {CleanupRegistry} Registry for cleanup handlers */
     cleanup = new CleanupRegistry()
     /** @type {CleanupRegistry} Registry for render-specific handlers */
     renderCleanup = new CleanupRegistry()
+    /** @type {Function|null} Unsubscribe function for user ready listener */
+    _unsubUser = null
 
     constructor() {
         super()
@@ -23,28 +22,23 @@ class UserProfile extends HTMLElement {
 
     connectedCallback() {
         TPEN.attachAuthentication(this)
-        this.cleanup.onEvent(TPEN.eventDispatcher, 'tpen-user-loaded', ev => {
-            this.render(ev.detail)
-            this.updateProfile(ev.detail)
-            this.user = ev.detail
-        })
+        this._unsubUser = onUserReady(this, this.handleUserReady)
     }
 
     disconnectedCallback() {
+        try { this._unsubUser?.() } catch {}
         this.renderCleanup.run()
         this.cleanup.run()
     }
 
-    attributeChangedCallback(name, oldValue, newValue) {
-        if (name === 'tpen-user-id') {
-            if (oldValue !== newValue) {
-                const currVal = this?.user?._id
-                if (newValue === currVal) return
-                const loadedUser = new User(newValue)
-                loadedUser.authentication = TPEN.getAuthorization()
-                loadedUser.getProfile()
-            }
-        }
+    /**
+     * Handler for when user data is ready.
+     * @param {Object} user - The loaded user object
+     */
+    handleUserReady(user) {
+        this.user = user
+        this.render(user)
+        this.updateProfile(user)
     }
 
     updateProfile(profile) {

components/user-profile/report.js

@@ -1,19 +1,26 @@
 import TPEN from '../../api/TPEN.js'
-import User from '../../api/User.js'
 import Project from '../../api/Project.js'
 import { CleanupRegistry } from '../../utilities/CleanupRegistry.js'
+import { onUserReady } from '../../utilities/userReady.js'
+import { onUserProjectsReady } from '../../utilities/userProjectsReady.js'
 
 /**
  * ReportStats - Displays summary statistics about user's projects.
  * @element report-stats
  */
 class ReportStats extends HTMLElement {
-    static get observedAttributes() {
-        return ['tpen-user-id']
-    }
-
     /** @type {CleanupRegistry} Registry for cleanup handlers */
     cleanup = new CleanupRegistry()
+    /** @type {Function|null} Unsubscribe function for user ready listener */
+    _unsubUser = null
+    /** @type {Function|null} Unsubscribe function for projects ready listener */
+    _unsubProjects = null
+    /** @type {Object|null} Cached profile data */
+    _profile = null
+    /** @type {Array|null} Cached projects data */
+    _projects = null
+    /** @type {boolean} Flag to prevent double rendering */
+    _isRendering = false
 
     constructor() {
         super()
@@ -22,14 +29,33 @@ class ReportStats extends HTMLElement {
 
     connectedCallback() {
         TPEN.attachAuthentication(this)
-        this.cleanup.onEvent(TPEN.eventDispatcher, 'tpen-user-loaded', () => this.loadAndRender())
+        this._unsubUser = onUserReady(this, (user) => {
+            this._profile = user
+            this.renderIfReady()
+        })
+        this._unsubProjects = onUserProjectsReady(this, (projects) => {
+            this._projects = projects
+            this.renderIfReady()
+        })
     }
 
     /**
-     * Loads user projects, calculates statistics, and renders the report.
+     * Renders only when both profile and projects are available.
+     * Guards against double rendering when both callbacks fire quickly.
+     */
+    renderIfReady() {
+        if (this._profile && this._projects && !this._isRendering) {
+            this._isRendering = true
+            this.loadAndRender()
+                .finally(() => { this._isRendering = false })
+        }
+    }
+
+    /**
+     * Calculates statistics from cached projects and renders the report.
      */
     async loadAndRender() {
-        const projects = await TPEN.getUserProjects(TPEN.getAuthorization())
+        const projects = this._projects
 
         const uniqueCollaborators = new Set()
         projects.forEach(project => {
@@ -56,21 +82,11 @@ class ReportStats extends HTMLElement {
     }
 
     disconnectedCallback() {
+        try { this._unsubUser?.() } catch {}
+        try { this._unsubProjects?.() } catch {}
         this.cleanup.run()
     }
 
-    attributeChangedCallback(name, oldValue, newValue) {
-        if (name === 'tpen-user-id') {
-            if (oldValue !== newValue) {
-                const currVal = this?.user?._id
-                if (newValue === currVal) return
-                const loadedUser = new User(newValue)
-                loadedUser.authentication = TPEN.getAuthorization()
-                loadedUser.getProfile()
-            }
-        }
-    }
-
     /**
      * Renders the report with pre-calculated statistics.
      * @param {number} projectCount - Number of projects

components/user-profile/userStats.js

@@ -1,19 +1,26 @@
 import TPEN from '../../api/TPEN.js'
-import User from '../../api/User.js'
 import Project from '../../api/Project.js'
 import { CleanupRegistry } from '../../utilities/CleanupRegistry.js'
+import { onUserReady } from '../../utilities/userReady.js'
+import { onUserProjectsReady } from '../../utilities/userProjectsReady.js'
 
 /**
  * UserStats - Displays user profile card with stats and collaborators.
  * @element user-stats
  */
 class UserStats extends HTMLElement {
-    static get observedAttributes() {
-        return ['tpen-user-id']
-    }
-
     /** @type {CleanupRegistry} Registry for cleanup handlers */
     cleanup = new CleanupRegistry()
+    /** @type {Function|null} Unsubscribe function for user ready listener */
+    _unsubUser = null
+    /** @type {Function|null} Unsubscribe function for projects ready listener */
+    _unsubProjects = null
+    /** @type {Object|null} Cached profile data */
+    _profile = null
+    /** @type {Array|null} Cached projects data */
+    _projects = null
+    /** @type {boolean} Flag to prevent double rendering */
+    _isRendering = false
 
     constructor() {
         super()
@@ -22,35 +29,44 @@ class UserStats extends HTMLElement {
 
     connectedCallback() {
         TPEN.attachAuthentication(this)
-        this.cleanup.onEvent(TPEN.eventDispatcher, 'tpen-user-loaded', ev => this.loadAndRender(ev.detail))
+        this._unsubUser = onUserReady(this, (user) => {
+            this._profile = user
+            this.renderIfReady()
+        })
+        this._unsubProjects = onUserProjectsReady(this, (projects) => {
+            this._projects = projects
+            this.renderIfReady()
+        })
     }
 
     /**
-     * Loads user projects and renders the stats.
+     * Renders only when both profile and projects are available.
+     * Guards against double rendering when both callbacks fire quickly.
+     */
+    renderIfReady() {
+        if (this._profile && this._projects && !this._isRendering) {
+            this._isRendering = true
+            this.loadAndRender(this._profile, this._projects)
+                .finally(() => { this._isRendering = false })
+        }
+    }
+
+    /**
+     * Processes profile and project data, then renders the stats.
      * @param {Object} profile - User profile data
+     * @param {Array} projects - Array of project data
      */
-    async loadAndRender(profile) {
-        const projects = await TPEN.getUserProjects(TPEN.getAuthorization())
+    async loadAndRender(profile, projects) {
         await this.processAndRender(profile, projects)
         this.updateProfile(profile)
     }
 
     disconnectedCallback() {
+        try { this._unsubUser?.() } catch {}
+        try { this._unsubProjects?.() } catch {}
         this.cleanup.run()
     }
 
-    attributeChangedCallback(name, oldValue, newValue) {
-        if (name === 'tpen-user-id') {
-            if (oldValue !== newValue) {
-                const currVal = this?.user?._id
-                if (newValue === currVal) return
-                const loadedUser = new User(newValue)
-                loadedUser.authentication = TPEN.getAuthorization()
-                loadedUser.getProfile()
-            }
-        }
-    }
-
     updateProfile(profile) {
         const publicProfile = this.getPublicProfile(profile)
         if(publicProfile.imageURL) {

utilities/userProjectsReady.js

@@ -0,0 +1,49 @@
+import TPEN from "../api/TPEN.js"
+
+// Module-level flag to prevent multiple simultaneous fetches
+let isFetching = false
+
+/**
+ * Utility to handle user projects readiness with caching.
+ * Checks if projects are already loaded before fetching.
+ * Triggers fetch if needed, subscribes to event for results.
+ * @param {Object} ctx - The context to bind the handler to
+ * @param {Function} handler - The handler function to invoke with projects
+ * @returns {Function} Unsubscribe function
+ */
+export const onUserProjectsReady = (ctx, handler) => {
+    if (!ctx || typeof handler !== 'function') return () => {}
+    const bound = handler.bind(ctx)
+
+    // Check if projects are already cached
+    try {
+        if (Array.isArray(TPEN.userProjects)) {
+            bound(TPEN.userProjects)
+        }
+    } catch (_) {}
+
+    // Subscribe to future updates
+    const eventHandler = () => {
+        try {
+            bound(TPEN.userProjects)
+        } catch (_) {}
+    }
+    TPEN.eventDispatcher.on('tpen-user-projects-loaded', eventHandler)
+
+    // Trigger fetch if not already cached and not currently fetching
+    if (!TPEN.userProjects && !isFetching) {
+        isFetching = true
+        const token = TPEN.getAuthorization()
+        if (token) {
+            TPEN.getUserProjects(token)
+                .catch((error) => {
+                    console.error("Failed to load user projects:", error)
+                })
+                .finally(() => { isFetching = false })
+        } else {
+            isFetching = false
+        }
+    }
+
+    return () => TPEN.eventDispatcher.off('tpen-user-projects-loaded', eventHandler)
+}