feat: Replace alertMixin usage with useAlert (#9793)

# Pull Request Template

## Description

This PR will replace the usage of `alertMixin` from the code base with
the `useAlert` composable.

Fixes
https://linear.app/chatwoot/issue/CW-3462/replace-alertmixin-usage-with-usealert

## Type of change

- [x] Breaking change (fix or feature that would cause existing
functionality not to work as expected)

## How Has This Been Tested?

Please refer this issue description

https://linear.app/chatwoot/issue/CW-3462/replace-alertmixin-usage-with-usealert


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

---------

Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/javascript/dashboard/composables/index.js

@@ -1,6 +1,10 @@
 import { getCurrentInstance } from 'vue';
 import { emitter } from 'shared/helpers/mitt';
 
+/**
+ * Custom hook to track events
+ * @returns {Function} The track function
+ */
 export const useTrack = () => {
   const vm = getCurrentInstance();
   if (!vm) throw new Error('must be called in setup');
@@ -8,6 +12,11 @@ export const useTrack = () => {
   return vm.proxy.$track;
 };
 
-export function useAlert(message, action) {
-  emitter.emit('newToastMessage', message, action);
-}
+/**
+ * Emits a toast message event using a global emitter.
+ * @param {string} message - The message to be displayed in the toast.
+ * @param {Object|null} action - Optional callback function or object to execute.
+ */
+export const useAlert = (message, action = null) => {
+  emitter.emit('newToastMessage', { message, action });
+};

app/javascript/dashboard/composables/spec/index.spec.js

@@ -0,0 +1,51 @@
+import { getCurrentInstance } from 'vue';
+import { emitter } from 'shared/helpers/mitt';
+import { useTrack, useAlert } from '../index';
+
+vi.mock('vue', () => ({
+  getCurrentInstance: vi.fn(),
+}));
+vi.mock('shared/helpers/mitt', () => ({
+  emitter: {
+    emit: vi.fn(),
+  },
+}));
+
+describe('useTrack', () => {
+  it('should return $track from the current instance proxy', () => {
+    const mockProxy = { $track: vi.fn() };
+    getCurrentInstance.mockReturnValue({ proxy: mockProxy });
+    const track = useTrack();
+    expect(track).toBe(mockProxy.$track);
+  });
+
+  it('should throw an error if called outside of setup', () => {
+    getCurrentInstance.mockReturnValue(null);
+    expect(useTrack).toThrowError('must be called in setup');
+  });
+});
+
+describe('useAlert', () => {
+  it('should emit a newToastMessage event with the provided message and action', () => {
+    const message = 'Toast message';
+    const action = {
+      type: 'link',
+      to: '/app/accounts/1/conversations/1',
+      message: 'Navigate',
+    };
+    useAlert(message, action);
+    expect(emitter.emit).toHaveBeenCalledWith('newToastMessage', {
+      message,
+      action,
+    });
+  });
+
+  it('should emit a newToastMessage event with the provided message and no action if action is null', () => {
+    const message = 'Toast message';
+    useAlert(message);
+    expect(emitter.emit).toHaveBeenCalledWith('newToastMessage', {
+      message,
+      action: null,
+    });
+  });
+});

app/javascript/dashboard/composables/spec/useAdmin.spec.js

@@ -0,0 +1,52 @@
+import { ref } from 'vue';
+import { useAdmin } from '../useAdmin';
+import { useStoreGetters } from 'dashboard/composables/store';
+
+vi.mock('dashboard/composables/store');
+
+describe('useAdmin', () => {
+  it('returns true if the current user is an administrator', () => {
+    useStoreGetters.mockReturnValue({
+      getCurrentRole: ref('administrator'),
+    });
+
+    const { isAdmin } = useAdmin();
+    expect(isAdmin.value).toBe(true);
+  });
+
+  it('returns false if the current user is not an administrator', () => {
+    useStoreGetters.mockReturnValue({
+      getCurrentRole: ref('user'),
+    });
+
+    const { isAdmin } = useAdmin();
+    expect(isAdmin.value).toBe(false);
+  });
+
+  it('returns false if the current user role is null', () => {
+    useStoreGetters.mockReturnValue({
+      getCurrentRole: ref(null),
+    });
+
+    const { isAdmin } = useAdmin();
+    expect(isAdmin.value).toBe(false);
+  });
+
+  it('returns false if the current user role is undefined', () => {
+    useStoreGetters.mockReturnValue({
+      getCurrentRole: ref(undefined),
+    });
+
+    const { isAdmin } = useAdmin();
+    expect(isAdmin.value).toBe(false);
+  });
+
+  it('returns false if the current user role is an empty string', () => {
+    useStoreGetters.mockReturnValue({
+      getCurrentRole: ref(''),
+    });
+
+    const { isAdmin } = useAdmin();
+    expect(isAdmin.value).toBe(false);
+  });
+});

app/javascript/dashboard/composables/useAdmin.js

@@ -0,0 +1,17 @@
+import { computed } from 'vue';
+import { useStoreGetters } from 'dashboard/composables/store';
+
+/**
+ * Composable to determine if the current user is an administrator.
+ * @returns {Boolean} - True if the current user is an administrator, false otherwise.
+ */
+export function useAdmin() {
+  const getters = useStoreGetters();
+
+  const currentUserRole = computed(() => getters.getCurrentRole.value);
+  const isAdmin = computed(() => currentUserRole.value === 'administrator');
+
+  return {
+    isAdmin,
+  };
+}