Update plugin notifications for errors and success

- Only show notification on plugin load and failure.
- In settings page, set current backend status at top of pane instead
  of showing notification
  Notices bubbles cluttered the UI while typing updates to settings
- Show notification once index updated via settings pane button click
  There was no notification on index updated, which usually takes time
  on the backend

src/interface/obsidian/src/main.ts

@@ -45,7 +45,7 @@ export default class Khoj extends Plugin {
     }
 
     async saveSettings() {
-        await configureKhojBackend(this.settings)
+        await configureKhojBackend(this.settings, false)
             .then(() => this.saveData(this.settings));
     }
 }

src/interface/obsidian/src/settings.ts

@@ -1,4 +1,4 @@
-import { App, PluginSettingTab, request, Setting } from 'obsidian';
+import { App, Notice, PluginSettingTab, request, Setting } from 'obsidian';
 import Khoj from 'src/main';
 import { getVaultAbsolutePath } from 'src/utils';
 
@@ -28,10 +28,8 @@ export class KhojSettingTab extends PluginSettingTab {
         const { containerEl } = this;
         containerEl.empty();
 
-        // Add notice if unable to connect to khoj backend
-        if (!this.plugin.settings.connectedToBackend) {
-            containerEl.createEl('small', { text: '❗Ensure Khoj backend is running and Khoj URL is correctly set below' });
-        }
+        // Add notice whether able to connect to khoj backend or not
+        containerEl.createEl('small', { text: this.getBackendStatusMessage() });
 
         // Add khoj settings configurable from the plugin settings tab
         new Setting(containerEl)
@@ -49,8 +47,9 @@ export class KhojSettingTab extends PluginSettingTab {
             .addText(text => text
                 .setValue(`${this.plugin.settings.khojUrl}`)
                 .onChange(async (value) => {
-                    this.plugin.settings.khojUrl = value;
-                    await this.plugin.saveSettings();
+                    this.plugin.settings.khojUrl = value.trim();
+                    await this.plugin.saveSettings()
+                    .finally(() => containerEl.firstElementChild?.setText(this.getBackendStatusMessage()));
                 }));
          new Setting(containerEl)
             .setName('Results Count')
@@ -69,8 +68,15 @@ export class KhojSettingTab extends PluginSettingTab {
                 .setButtonText('Update')
                 .setCta()
                 .onClick(async () => {
-                    await request(`${this.plugin.settings.khojUrl}/api/update?t=markdown&force=true`);
-                }
-            ));
+                    await request(`${this.plugin.settings.khojUrl}/api/update?t=markdown&force=true`)
+                    .then(() => new Notice('✅ Updated Khoj index.'))
+                })
+            );
+    }
+
+    getBackendStatusMessage() {
+        return !this.plugin.settings.connectedToBackend
+        ? '❗Disconnected from Khoj backend. Ensure Khoj backend is running and Khoj URL is correctly set below.'
+        : '✅ Connected to Khoj backend.';
     }
 }

src/interface/obsidian/src/utils.ts

@@ -9,7 +9,7 @@ export function getVaultAbsolutePath(): string {
     return '';
 }
 
-export async function configureKhojBackend(setting: KhojSetting) {
+export async function configureKhojBackend(setting: KhojSetting, notify: boolean = true) {
     let mdInVault = `${setting.obsidianVaultPath}/**/*.md`;
     let khojConfigUrl = `${setting.khojUrl}/api/config/data`;
 
@@ -21,7 +21,8 @@ export async function configureKhojBackend(setting: KhojSetting) {
         })
         .catch(error => {
             setting.connectedToBackend = false;
-            new Notice(`❗️Ensure Khoj backend is running and Khoj URL is pointing to it in the plugin settings.\n\n${error}`);
+            if (notify)
+                new Notice(`❗️Ensure Khoj backend is running and Khoj URL is pointing to it in the plugin settings.\n\n${error}`);
         })
     // Short-circuit configuring khoj if unable to connect to khoj backend
     if (!setting.connectedToBackend) return;
@@ -79,10 +80,10 @@ export async function configureKhojBackend(setting: KhojSetting) {
                 updateKhojBackend(setting.khojUrl, data);
                 console.log(`Khoj: Updated markdown config in khoj backend config:\n${JSON.stringify(data["content-type"]["markdown"])}`)
             }
-            new Notice(`✅ Successfully Setup Khoj`);
         })
         .catch(error => {
-            new Notice(`❗️Failed to configure Khoj backend. Contact developer on Github.\n\nError: ${error}`);
+            if (notify)
+                new Notice(`❗️Failed to configure Khoj backend. Contact developer on Github.\n\nError: ${error}`);
         })
 }