From f9292f05f488a40b79aefc77a6a8553e97d53f5c Mon Sep 17 00:00:00 2001
From: dxlliv <hello@dxlliv.dev>
Date: Thu, 2 Jan 2025 23:32:20 +0100
Subject: [PATCH] Implement agent

---
 app/app.config.ts                            |  3 +
 app/components/Agent/AgentDialog.vue         | 23 ++++++
 app/components/Agent/AgentForm.vue           | 58 +++++++++++++++
 app/components/Agent/AgentMessage.vue        | 20 ++++++
 app/components/Agent/AgentMessageWaiting.vue |  5 ++
 app/components/Toolbar/Toolbar.vue           |  6 +-
 app/models/ChatManager.ts                    | 74 ++++++++++++++++++++
 nuxt.config.ts                               |  2 +-
 8 files changed, 185 insertions(+), 6 deletions(-)
 create mode 100644 app/components/Agent/AgentDialog.vue
 create mode 100644 app/components/Agent/AgentForm.vue
 create mode 100644 app/components/Agent/AgentMessage.vue
 create mode 100644 app/components/Agent/AgentMessageWaiting.vue
 create mode 100644 app/models/ChatManager.ts

diff --git a/app/app.config.ts b/app/app.config.ts
index c5f70fa..f01b39a 100644
--- a/app/app.config.ts
+++ b/app/app.config.ts
@@ -1,4 +1,7 @@
 export default defineAppConfig({
+    agent: {
+      baseURL: 'https://agent.dxlliv.dev',
+    },
     links: {
         instagram: "https://instagram.com/dxlliv",
         email: "mailto:hello@dxlliv.dev",
diff --git a/app/components/Agent/AgentDialog.vue b/app/components/Agent/AgentDialog.vue
new file mode 100644
index 0000000..e263595
--- /dev/null
+++ b/app/components/Agent/AgentDialog.vue
@@ -0,0 +1,23 @@
+<script setup lang="ts">
+defineProps<{
+  fullscreen?: boolean
+}>()
+
+const dialog = ref(false)
+</script>
+
+<template>
+  <v-dialog
+      activator="parent"
+      :model-value="true"
+      :width="600" max-width="calc(100vw - 36px)"
+      :fullscreen="fullscreen"
+      transition="dialog-bottom-transition"
+  >
+    <v-card :rounded="!fullscreen">
+
+      <AgentForm/>
+
+    </v-card>
+  </v-dialog>
+</template>
\ No newline at end of file
diff --git a/app/components/Agent/AgentForm.vue b/app/components/Agent/AgentForm.vue
new file mode 100644
index 0000000..b0eb37a
--- /dev/null
+++ b/app/components/Agent/AgentForm.vue
@@ -0,0 +1,58 @@
+<script setup lang="ts">
+const listElement = useTemplateRef<any>('listElement')
+const waitingReply = ref(false)
+
+const appConfig = useAppConfig()
+const agentBaseURL = appConfig.agent.baseURL
+
+const chatManager = new ChatManager(listElement, agentBaseURL)
+
+const text = ref('')
+
+async function onNewMessage() {
+  const message = String(text.value)
+
+  text.value = ''
+
+  chatManager.addNewMessage('me', message)
+
+  waitingReply.value = true
+
+  await chatManager.sendMessage(message)
+
+  waitingReply.value = false
+}
+</script>
+
+<template>
+  <v-list ref="listElement" class="mt-2" height="50vh" :max-height="400">
+    <v-list-item v-for="message of chatManager.chat.value" :class="['py-1']">
+      <AgentMessage :author="message.author" :class="[{ 'float-right': message.author === 'me' }]">
+        {{message.text}}
+      </AgentMessage>
+    </v-list-item>
+
+    <v-list-item v-if="waitingReply" class="py-1">
+      <AgentMessageWaiting />
+    </v-list-item>
+
+    <v-list-item v-if="chatManager.chat.value.length === 0" class="fill-height text-center">
+      Let's talk about projects!<br />
+      What do you have in mind?
+    </v-list-item>
+  </v-list>
+
+  <v-text-field
+      v-model="text"
+      variant="solo"
+      flat
+      hide-details
+      :readonly="waitingReply"
+      placeholder="Type a message"
+      @keydown.enter="onNewMessage"
+  >
+    <template v-slot:prepend>
+      <v-icon icon="mdi-account-circle-outline" class="ml-5 mr-n4" />
+    </template>
+  </v-text-field>
+</template>
diff --git a/app/components/Agent/AgentMessage.vue b/app/components/Agent/AgentMessage.vue
new file mode 100644
index 0000000..310e05e
--- /dev/null
+++ b/app/components/Agent/AgentMessage.vue
@@ -0,0 +1,20 @@
+<script setup lang="ts">
+defineProps<{
+  author: string
+}>()
+</script>
+
+<template>
+  <v-card
+      class="d-inline-block text-subtitle-2 px-4 py-3"
+      :color="author === 'me' ? 'grey-lighten-2' : 'grey-lighten-4'" rounded flat max-width="70%"
+  >
+    <slot />
+  </v-card>
+</template>
+
+<style scoped lang="scss">
+.v-card {
+  line-height: 22px;
+}
+</style>
\ No newline at end of file
diff --git a/app/components/Agent/AgentMessageWaiting.vue b/app/components/Agent/AgentMessageWaiting.vue
new file mode 100644
index 0000000..45968c1
--- /dev/null
+++ b/app/components/Agent/AgentMessageWaiting.vue
@@ -0,0 +1,5 @@
+<template>
+  <AgentMessage author="bot" :width="56">
+    <v-progress-linear indeterminate color="grey-lighten-2" />
+  </AgentMessage>
+</template>
\ No newline at end of file
diff --git a/app/components/Toolbar/Toolbar.vue b/app/components/Toolbar/Toolbar.vue
index 9fc1cf8..9614c4a 100644
--- a/app/components/Toolbar/Toolbar.vue
+++ b/app/components/Toolbar/Toolbar.vue
@@ -52,11 +52,7 @@ const sliderHorizontalStore = useSliderHorizontalStore()
       <v-col class="flex-grow-0 px-5" align-self="center">
 
         <ToolbarAvailability>
-          <ContactDialog/>
-          <!--
-           v-if="$vuetify.display.smAndUp"
-          <ContactBottomSheet v-else/>
-          -->
+          <AgentDialog/>
         </ToolbarAvailability>
 
       </v-col>
diff --git a/app/models/ChatManager.ts b/app/models/ChatManager.ts
new file mode 100644
index 0000000..1e78c65
--- /dev/null
+++ b/app/models/ChatManager.ts
@@ -0,0 +1,74 @@
+export class ChatManager {
+    chat: Ref<any[]> = ref([])
+    listElement: any
+    agentBaseURL: string
+    userId: string
+    roomId: string
+
+    constructor(listElement: any, agentBaseURL: string) {
+        this.listElement = listElement
+        this.agentBaseURL = agentBaseURL
+
+        this.userId = `user-${ChatManager.generateUUID()}`
+        this.roomId = `default-room-${ChatManager.generateUUID()}`
+    }
+
+    static generateUUID(): string {
+        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
+            const r = Math.random() * 16 | 0
+            const v = c === 'x' ? r : (r & 0x3 | 0x8)
+            return v.toString(16)
+        })
+    }
+
+    scrollToBottom(): void {
+        this.listElement.value.$el.scrollTop = this.listElement.value.$el.scrollHeight
+    }
+
+    addNewMessage(author: string, text: string): void {
+        this.chat.value.push({
+            author,
+            text,
+        })
+
+        setTimeout(() => {
+            this.scrollToBottom()
+        }, 25)
+    }
+
+    async sendMessage(text: string): Promise<void> {
+        const data = {
+            text,
+            userId: this.userId,
+            roomId: this.roomId,
+        }
+
+        const url = `${this.agentBaseURL}/message`
+
+        await fetch(url, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json; charset=utf-8',
+            },
+            body: JSON.stringify(data),
+        })
+            .then((response) => {
+                if (!response.ok) {
+                    throw new Error(`Request failed with status: ${response.status}`)
+                }
+
+                return response.json()
+            })
+            .then((messages) => {
+                if (messages.length > 0) {
+                    this.addNewMessage('bot', messages[0].text)
+                }
+            })
+            .catch(async () => {
+                return new Promise(resolve => setTimeout(() => {
+                    this.addNewMessage('bot', 'There was an error')
+                    resolve(true)
+                }, 3000))
+            })
+    }
+}
\ No newline at end of file
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 5170fcc..36b349c 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -48,7 +48,7 @@ export default defineNuxtConfig({
     ],
 
     imports: {
-        dirs: ['composables', 'stores', 'utils']
+        dirs: ['composables', 'models', 'stores', 'utils']
     },
 
     i18n: {