From 565b59c4d02ac481bc912a444d7ff719c92301fb Mon Sep 17 00:00:00 2001
From: Gauthier Roebroeck <gauthier.roebroeck@gmail.com>
Date: Tue, 22 Jul 2025 17:22:17 +0800
Subject: [PATCH] add FormattedMessage component

---
 next-ui/src/components/FormattedMessage.mdx   | 11 +++
 .../components/FormattedMessage.stories.ts    | 73 +++++++++++++++++++
 next-ui/src/components/FormattedMessage.ts    | 26 +++++++
 3 files changed, 110 insertions(+)
 create mode 100644 next-ui/src/components/FormattedMessage.mdx
 create mode 100644 next-ui/src/components/FormattedMessage.stories.ts
 create mode 100644 next-ui/src/components/FormattedMessage.ts

diff --git a/next-ui/src/components/FormattedMessage.mdx b/next-ui/src/components/FormattedMessage.mdx
new file mode 100644
index 00000000..3c04cf8d
--- /dev/null
+++ b/next-ui/src/components/FormattedMessage.mdx
@@ -0,0 +1,11 @@
+import {Canvas, Meta} from '@storybook/addon-docs/blocks';
+
+import * as Stories from './FormattedMessage.stories';
+
+<Meta of={Stories} />
+
+# FormattedMessage
+
+Component to display formatted `formatjs` messages using dynamic slots.
+
+<Canvas of={Stories.Default} />
diff --git a/next-ui/src/components/FormattedMessage.stories.ts b/next-ui/src/components/FormattedMessage.stories.ts
new file mode 100644
index 00000000..517a8870
--- /dev/null
+++ b/next-ui/src/components/FormattedMessage.stories.ts
@@ -0,0 +1,73 @@
+import type { Meta, StoryObj } from '@storybook/vue3-vite'
+
+import FormattedMessage from './FormattedMessage.ts'
+
+const meta = {
+  component: FormattedMessage,
+  parameters: {
+    // More on how to position stories at: https://storybook.js.org/docs/configure/story-layout
+  },
+  args: {},
+} satisfies Meta<typeof Details>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const Default: Story = {
+  render: (args: object) => ({
+    components: { FormattedMessage },
+    setup() {
+      return { args }
+    },
+    template: `
+      <FormattedMessage :messageDescriptor="{
+        defaultMessage: 'Please accept <a>terms <b>and<br></br></b> conditions</a> first',
+        id: 'test',
+      }">
+        <template #a="Content">
+          <a href="#" target="_blank">
+            <component :is="Content"/>
+          </a>
+        </template>
+        <template #b="Content">
+          <strong>
+            <component :is="Content"/>
+          </strong>
+        </template>
+        <template #br>
+          <br/>
+        </template>
+      </FormattedMessage>
+    `,
+  }),
+}
+
+export const NoMarkup: Story = {
+  render: (args: object) => ({
+    components: { FormattedMessage },
+    setup() {
+      return { args }
+    },
+    template: `
+      <FormattedMessage :messageDescriptor="{
+        defaultMessage: 'Please accept terms and conditions first',
+        id: 'test',
+      }"/>
+    `,
+  }),
+}
+
+export const NoMarkupTag: Story = {
+  render: (args: object) => ({
+    components: { FormattedMessage },
+    setup() {
+      return { args }
+    },
+    template: `
+      <FormattedMessage :messageDescriptor="{
+        defaultMessage: 'Please accept terms and conditions first',
+        id: 'test',
+      }" tag="div"/>
+    `,
+  }),
+}
diff --git a/next-ui/src/components/FormattedMessage.ts b/next-ui/src/components/FormattedMessage.ts
new file mode 100644
index 00000000..b3ad2e16
--- /dev/null
+++ b/next-ui/src/components/FormattedMessage.ts
@@ -0,0 +1,26 @@
+import { defineComponent, h } from 'vue'
+import { type MessageDescriptor, useIntl } from 'vue-intl'
+
+// from: https://github.com/formatjs/formatjs/discussions/3961
+export default defineComponent({
+  props: {
+    messageDescriptor: Object as PropType<MessageDescriptor>,
+    tag: String,
+    values: Object,
+  },
+  setup(props, context) {
+    const { messageDescriptor, tag, values = {} } = props
+    const intl = useIntl()
+    const slotNames = Object.keys(context.slots)
+
+    const message = intl.formatMessage(messageDescriptor, {
+      ...values,
+      ...slotNames.reduce((slots, name) => {
+        slots[name] = (content) => context.slots[name](() => content)
+        return slots
+      }, {}),
+    })
+
+    return () => (tag || Array.isArray(message) ? h(tag || 'div', message) : message)
+  },
+})