From 010cd54018c3079b240cc3c679c7378482452e42 Mon Sep 17 00:00:00 2001
From: theia
Date: Fri, 3 Feb 2023 15:45:30 -0500
Subject: made GraffitiArray work even after second-level functions + like
 button to demo

---
 README.md                      |  2 +-
 demo/components/chat.js        | 17 ++++----
 demo/components/like-button.js | 36 ++++++++++++++++
 demo/index.html                | 13 +++---
 graffiti.js                    |  4 +-
 src/array.js                   | 94 +++++++++++++++++++++---------------------
 6 files changed, 101 insertions(+), 65 deletions(-)
 create mode 100644 demo/components/like-button.js

diff --git a/README.md b/README.md
index 199b871..05412b9 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,4 @@
 
 This library enables any webpage to interface with the [Graffiti server](https://github.com/graffiti-garden/graffiti-server). It also includes a plugin that extends it to operate with the [Vue.js framework](https://vuejs.org/).
 
-Check out the live [demo](https://graffiti.garden/graffiti-js/demo) of the library and plugin in action. The demo's source code is in the `/demo` folder.
+Check out the live [demo](https://graffiti.garden/graffiti-js/demo) of the library and plugin in action. The demo's source code is in the [`/demo`](https://github.com/graffiti-garden/graffiti-js/tree/main/demo) folder.
diff --git a/demo/components/chat.js b/demo/components/chat.js
index 86d8fe7..08b478b 100644
--- a/demo/components/chat.js
+++ b/demo/components/chat.js
@@ -1,13 +1,13 @@
 import { Name } from './name.js'
+import LikeButton from './like-button.js'
 
 export default {
 
-  components: { Name },
-
-  props: ['tags'],
+  components: { Name, LikeButton },
 
   data: ()=> ({
-    message: ''
+    message: '',
+    channel: 'demo'
   }),
 
   methods: {
@@ -25,20 +25,23 @@ export default {
       this.$graffitiUpdate({
         message: this.message,
         timestamp: Date.now(),
-        _tags: this.tags
+        _tags: [this.channel]
       })
       this.message = ''
     }
   },
 
   template: `
-    <graffiti-objects :tags="tags" v-slot="{objects}">
+    Chat Channel: <input v-model="channel"/>
+
+    <graffiti-objects :tags="[channel]" v-slot="{objects}">
       <ul v-for="object in messageObjects(objects)">
         <li>
           <em><Name :of="object._by"/></em>:
-
           {{ object.message }}
 
+          <LikeButton :messageID="object._id" />
+
           <template v-if="object._by==$graffitiMyID">
             <button @click="object.message+='!!';object._update()">
               ‼️
diff --git a/demo/components/like-button.js b/demo/components/like-button.js
new file mode 100644
index 0000000..1c9649a
--- /dev/null
+++ b/demo/components/like-button.js
@@ -0,0 +1,36 @@
+export default {
+
+  props: ['messageID'],
+
+  methods: {
+    likeObjects(objects) {
+      return objects.filter(o=>
+                      'like' in o &&
+                      'timestamp' in o &&
+                      o.like == this.messageID &&
+                      typeof o.timestamp == 'number')
+
+    },
+
+    toggleLike(objects) {
+      const myLikes = this.likeObjects(objects).mine
+      if (myLikes.length) {
+        myLikes.removeMine()
+      } else {
+        this.$graffitiUpdate({
+          like: this.messageID,
+          timestamp: Date.now(),
+          _tags: [this.messageID]
+        })
+      }
+    }
+  },
+
+  template: `
+    <graffiti-objects :tags="[messageID]" v-slot="{objects}">
+      <button @click="toggleLike(objects)" :class="likeObjects(objects).mine.length?'button-primary':''">
+        👍 {{ likeObjects(objects).length }}
+      </button>
+    </graffiti-objects>`
+}
+
diff --git a/demo/index.html b/demo/index.html
index 06e83d3..b409ee4 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -9,8 +9,9 @@
   <script async src="https://ga.jspm.io/npm:es-module-shims@1.6.2/dist/es-module-shims.js"></script>
   <script type="importmap">{ "imports": {
     "vue": "https://cdnjs.cloudflare.com/ajax/libs/vue/3.2.45/vue.esm-browser.prod.min.js",
-    "graffiti-vue": "https://graffiti.garden/graffiti-js/plugins/vue/plugin.js"
+    "graffiti-vue": "../plugins/vue/plugin.js"
   }}</script>
+    <!--"graffiti-vue": "https://graffiti.garden/graffiti-js/plugins/vue/plugin.js"-->
   <script type="module">
     import { createApp } from 'vue'
     import { Name, SetMyName } from './components/name.js'
@@ -28,10 +29,6 @@
 
   <h1>Graffiti Demo</h1>
 
-  <p>
-    This demonstrates use of the <a href="">graffiti-js</a> library Vue interface.
-  </p>
-
   <h2>Connection Status</h2>
 
   <p>
@@ -60,13 +57,13 @@
 
   <h2>Chatting</h2>
 
-  <chat :tags="['demo']"></chat>
+  <chat></chat>
 
   <h2>Moderation</h2>
 
-  <h2>Context</h2>
-
   <h2>Private Messages</h2>
+
+  <h2>Tagging</h2>
   
 </body>
 </html>
diff --git a/graffiti.js b/graffiti.js
index 3cdc7fc..4100e08 100644
--- a/graffiti.js
+++ b/graffiti.js
@@ -13,6 +13,7 @@ export default class {
     this.open = false
     this.eventTarget = new EventTarget()
     this.tagMap = {}
+    this.GraffitiArray = GraffitiArray(this)
 
     this.#initialize()
   }
@@ -144,6 +145,7 @@ export default class {
         // Add properties to the object
         // so it can be updated and removed
         // without the collection
+        Object.defineProperty(object, '_id', { value: this.#objectUUID(object) })
         Object.defineProperty(object, '_update', { value: ()=>this.update(object) })
         Object.defineProperty(object, '_remove', { value: ()=>this.remove(object) })
         objectMap[uuid] = object
@@ -246,7 +248,7 @@ export default class {
       ...tags.map(tag=> this.tagMap[tag].objectMap))
 
     // Return an array wrapped with graffiti functions
-    return new GraffitiArray(this, ...Object.values(combinedMaps))
+    return new this.GraffitiArray(...Object.values(combinedMaps))
   }
 
   async subscribe(...tags) {
diff --git a/src/array.js b/src/array.js
index f0c251f..c53113e 100644
--- a/src/array.js
+++ b/src/array.js
@@ -1,64 +1,62 @@
 // Extend the array class to expose update
 // functionality, plus provide some
 // useful helper methods
-export default class GraffitiArray extends Array {
+export default function(graffiti) {
 
-  constructor(graffiti, ...elements) {
-    super(...elements)
-    this.graffiti = graffiti
-  }
+  return class GraffitiArray extends Array {
 
-  get mine() {
-    return this.filter(o=> o._by==this.graffiti.myID)
-  }
+    get mine() {
+      return this.filter(o=> o._by==graffiti.myID)
+    }
 
-  get notMine() {
-    return this.filter(o=> o._by!=this.graffiti.myID)
-  }
+    get notMine() {
+      return this.filter(o=> o._by!=graffiti.myID)
+    }
 
-  get authors() {
-    return [...new Set(this.map(o=> o._by))]
-  }
+    get authors() {
+      return [...new Set(this.map(o=> o._by))]
+    }
 
-  async removeMine() {
-    await Promise.all(
-      this.mine.map(async o=> await o._remove()))
-  }
+    async removeMine() {
+      await Promise.all(
+        this.mine.map(async o=> await o._remove()))
+    }
 
-  #getProperty(obj, propertyPath) {
-    // Split it up by periods
-    propertyPath = propertyPath.match(/([^\.]+)/g)
-    // Traverse down the path tree
-    for (const property of propertyPath) {
-      obj = obj[property]
+    #getProperty(obj, propertyPath) {
+      // Split it up by periods
+      propertyPath = propertyPath.match(/([^\.]+)/g)
+      // Traverse down the path tree
+      for (const property of propertyPath) {
+        obj = obj[property]
+      }
+      return obj
     }
-    return obj
-  }
 
-  sortBy(propertyPath) {
+    sortBy(propertyPath) {
 
-    const sortOrder = propertyPath[0] == '-'? -1 : 1
-    if (sortOrder < 0) propertyPath = propertyPath.substring(1)
+      const sortOrder = propertyPath[0] == '-'? -1 : 1
+      if (sortOrder < 0) propertyPath = propertyPath.substring(1)
 
-    return this.sort((a, b)=> {
-      const propertyA = this.#getProperty(a, propertyPath)
-      const propertyB = this.#getProperty(b, propertyPath)
-      return sortOrder * (
-        propertyA < propertyB? -1 : 
-        propertyA > propertyB?  1 : 0 )
-    })
-  }
+      return this.sort((a, b)=> {
+        const propertyA = this.#getProperty(a, propertyPath)
+        const propertyB = this.#getProperty(b, propertyPath)
+        return sortOrder * (
+          propertyA < propertyB? -1 : 
+          propertyA > propertyB?  1 : 0 )
+      })
+    }
 
-  groupBy(propertyPath) {
-    return this.reduce((chain, obj)=> {
-      const property = this.#getProperty(obj, propertyPath)
-      if (property in chain) {
-        chain[property].push(obj)
-      } else {
-        chain[property] = new GraffitiArray(this.graffiti, obj)
-      }
-      return chain
-    }, {})
-  }
+    groupBy(propertyPath) {
+      return this.reduce((chain, obj)=> {
+        const property = this.#getProperty(obj, propertyPath)
+        if (property in chain) {
+          chain[property].push(obj)
+        } else {
+          chain[property] = new GraffitiArray(obj)
+        }
+        return chain
+      }, {})
+    }
 
+  }
 }
-- 
cgit v1.2.3-70-g09d2