From 59efb7ea1ad22d48b0ed6ad74eb20cdff311e349 Mon Sep 17 00:00:00 2001
From: johndoe6345789 <john.doe6345789@gmail.com>
Date: Sat, 27 Dec 2025 17:39:45 +0000
Subject: [PATCH] refactor: split navigation components

---
 .../ui/organisms/navigation/Navigation.tsx    | 325 +-----------------
 .../navigation/NavigationMenuItems.tsx        | 203 +++++++++++
 .../navigation/NavigationResponsive.tsx       |  30 ++
 .../navigation/NavigationStyling.tsx          |  45 +++
 .../organisms/navigation/navigationConfig.ts  |  12 +
 .../organisms/navigation/navigationHelpers.ts |  23 ++
 6 files changed, 327 insertions(+), 311 deletions(-)
 create mode 100644 frontends/nextjs/src/components/ui/organisms/navigation/NavigationMenuItems.tsx
 create mode 100644 frontends/nextjs/src/components/ui/organisms/navigation/NavigationResponsive.tsx
 create mode 100644 frontends/nextjs/src/components/ui/organisms/navigation/NavigationStyling.tsx
 create mode 100644 frontends/nextjs/src/components/ui/organisms/navigation/navigationConfig.ts
 create mode 100644 frontends/nextjs/src/components/ui/organisms/navigation/navigationHelpers.ts

diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/Navigation.tsx b/frontends/nextjs/src/components/ui/organisms/navigation/Navigation.tsx
index 4cc7db4a5..26db2774f 100644
--- a/frontends/nextjs/src/components/ui/organisms/navigation/Navigation.tsx
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/Navigation.tsx
@@ -1,36 +1,20 @@
-// TODO: Split this file (370 LOC) into smaller organisms (<150 LOC each)
 'use client'
 
-import { forwardRef, ReactNode, useState, ElementType } from 'react'
+import { forwardRef, ReactNode } from 'react'
+import { AppBar, Toolbar, useScrollTrigger, Slide } from '@mui/material'
+import { NavigationMobileToggle } from './NavigationResponsive'
 import {
-  AppBar,
-  Toolbar,
-  Box,
-  Typography,
-  IconButton,
-  Menu,
-  MenuItem,
-  ListItemIcon,
-  ListItemText,
-  Divider,
-  Button,
-  useScrollTrigger,
-  Slide,
-} from '@mui/material'
-import MenuIcon from '@mui/icons-material/Menu'
-import ExpandMoreIcon from '@mui/icons-material/ExpandMore'
+  NavigationMenu,
+  NavigationList,
+  NavigationItem,
+  NavigationTrigger,
+  NavigationContent,
+  NavigationLink,
+} from './NavigationMenuItems'
+import { NavigationBrand, NavigationSeparator, NavigationSpacer } from './NavigationStyling'
+import { NavigationItemType } from './navigationConfig'
+import { useNavigationDropdown } from './navigationHelpers'
 
-// Types
-interface NavigationItem {
-  label: string
-  href?: string
-  onClick?: () => void
-  icon?: ReactNode
-  children?: NavigationItem[]
-  disabled?: boolean
-}
-
-// Navigation Root (AppBar)
 interface NavigationProps {
   children: ReactNode
   position?: 'fixed' | 'absolute' | 'sticky' | 'static' | 'relative'
@@ -73,287 +57,6 @@ const Navigation = forwardRef<HTMLElement, NavigationProps>(
 )
 Navigation.displayName = 'Navigation'
 
-// NavigationMenu - Container for nav items
-interface NavigationMenuProps {
-  children: ReactNode
-}
-
-const NavigationMenu = forwardRef<HTMLDivElement, NavigationMenuProps>(
-  ({ children, ...props }, ref) => {
-    return (
-      <Box
-        ref={ref}
-        component="nav"
-        sx={{
-          display: 'flex',
-          alignItems: 'center',
-          gap: 0.5,
-        }}
-        {...props}
-      >
-        {children}
-      </Box>
-    )
-  }
-)
-NavigationMenu.displayName = 'NavigationMenu'
-
-// NavigationList - List of items
-interface NavigationListProps {
-  children: ReactNode
-}
-
-const NavigationList = forwardRef<HTMLUListElement, NavigationListProps>(
-  ({ children, ...props }, ref) => {
-    return (
-      <Box
-        ref={ref}
-        component="ul"
-        sx={{
-          display: 'flex',
-          alignItems: 'center',
-          gap: 0.5,
-          listStyle: 'none',
-          m: 0,
-          p: 0,
-        }}
-        {...props}
-      >
-        {children}
-      </Box>
-    )
-  }
-)
-NavigationList.displayName = 'NavigationList'
-
-// NavigationItem - Single nav item (may have dropdown)
-interface NavigationItemProps {
-  children: ReactNode
-}
-
-const NavigationItem = forwardRef<HTMLLIElement, NavigationItemProps>(
-  ({ children, ...props }, ref) => {
-    return (
-      <Box component="li" ref={ref} sx={{ position: 'relative' }} {...props}>
-        {children}
-      </Box>
-    )
-  }
-)
-NavigationItem.displayName = 'NavigationItem'
-
-// NavigationTrigger - Button that opens dropdown
-interface NavigationTriggerProps {
-  children: ReactNode
-  onClick?: (event: React.MouseEvent<HTMLElement>) => void
-  hasDropdown?: boolean
-}
-
-const NavigationTrigger = forwardRef<HTMLButtonElement, NavigationTriggerProps>(
-  ({ children, onClick, hasDropdown = false, ...props }, ref) => {
-    return (
-      <Button
-        ref={ref}
-        onClick={onClick}
-        color="inherit"
-        endIcon={hasDropdown ? <ExpandMoreIcon fontSize="small" /> : undefined}
-        sx={{
-          textTransform: 'none',
-          fontWeight: 500,
-          color: 'text.primary',
-          '&:hover': {
-            bgcolor: 'action.hover',
-          },
-        }}
-        {...props}
-      >
-        {children}
-      </Button>
-    )
-  }
-)
-NavigationTrigger.displayName = 'NavigationTrigger'
-
-// NavigationContent - Dropdown content
-interface NavigationContentProps {
-  anchorEl: HTMLElement | null
-  open: boolean
-  onClose: () => void
-  children: ReactNode
-}
-
-const NavigationContent = forwardRef<HTMLDivElement, NavigationContentProps>(
-  ({ anchorEl, open, onClose, children, ...props }, ref) => {
-    return (
-      <Menu
-        ref={ref}
-        anchorEl={anchorEl}
-        open={open}
-        onClose={onClose}
-        anchorOrigin={{
-          vertical: 'bottom',
-          horizontal: 'left',
-        }}
-        transformOrigin={{
-          vertical: 'top',
-          horizontal: 'left',
-        }}
-        PaperProps={{
-          elevation: 2,
-          sx: {
-            mt: 1,
-            minWidth: 200,
-          },
-        }}
-        {...props}
-      >
-        {children}
-      </Menu>
-    )
-  }
-)
-NavigationContent.displayName = 'NavigationContent'
-
-// NavigationLink - Link within navigation
-interface NavigationLinkProps {
-  children: ReactNode
-  href?: string
-  onClick?: () => void
-  active?: boolean
-  disabled?: boolean
-  icon?: ReactNode
-  asChild?: boolean
-  component?: ElementType
-}
-
-const NavigationLink = forwardRef<HTMLElement, NavigationLinkProps>(
-  ({ children, href, onClick, active = false, disabled = false, icon, asChild, component, ...props }, ref) => {
-    if (asChild || component) {
-      return (
-        <MenuItem
-          ref={ref}
-          component={component || 'a'}
-          href={href}
-          onClick={onClick}
-          disabled={disabled}
-          selected={active}
-          {...props}
-        >
-          {icon && <ListItemIcon>{icon}</ListItemIcon>}
-          <ListItemText>{children}</ListItemText>
-        </MenuItem>
-      )
-    }
-
-    return (
-      <MenuItem
-        onClick={onClick}
-        disabled={disabled}
-        selected={active}
-        sx={{
-          borderRadius: 1,
-        }}
-        {...props}
-      >
-        {icon && <ListItemIcon>{icon}</ListItemIcon>}
-        <ListItemText>{children}</ListItemText>
-      </MenuItem>
-    )
-  }
-)
-NavigationLink.displayName = 'NavigationLink'
-
-// NavigationBrand - Logo/brand area
-interface NavigationBrandProps {
-  children: ReactNode
-  href?: string
-  onClick?: () => void
-}
-
-const NavigationBrand = forwardRef<HTMLDivElement, NavigationBrandProps>(
-  ({ children, href, onClick, ...props }, ref) => {
-    return (
-      <Box
-        ref={ref}
-        onClick={onClick}
-        sx={{
-          display: 'flex',
-          alignItems: 'center',
-          cursor: onClick || href ? 'pointer' : 'default',
-          mr: 2,
-        }}
-        {...props}
-      >
-        {children}
-      </Box>
-    )
-  }
-)
-NavigationBrand.displayName = 'NavigationBrand'
-
-// NavigationSeparator
-const NavigationSeparator = forwardRef<HTMLHRElement, Record<string, never>>(
-  (props, ref) => {
-    return <Divider ref={ref} orientation="vertical" flexItem sx={{ mx: 1 }} {...props} />
-  }
-)
-NavigationSeparator.displayName = 'NavigationSeparator'
-
-// NavigationSpacer - Flex spacer
-const NavigationSpacer = forwardRef<HTMLDivElement, Record<string, never>>(
-  (props, ref) => {
-    return <Box ref={ref} sx={{ flexGrow: 1 }} {...props} />
-  }
-)
-NavigationSpacer.displayName = 'NavigationSpacer'
-
-// NavigationMobileToggle - Hamburger menu for mobile
-interface NavigationMobileToggleProps {
-  onClick: () => void
-}
-
-const NavigationMobileToggle = forwardRef<HTMLButtonElement, NavigationMobileToggleProps>(
-  ({ onClick, ...props }, ref) => {
-    return (
-      <IconButton
-        ref={ref}
-        onClick={onClick}
-        edge="start"
-        color="inherit"
-        sx={{
-          display: { sm: 'none' },
-          mr: 2,
-        }}
-        {...props}
-      >
-        <MenuIcon />
-      </IconButton>
-    )
-  }
-)
-NavigationMobileToggle.displayName = 'NavigationMobileToggle'
-
-// Helper hook for dropdown navigation
-function useNavigationDropdown() {
-  const [anchorEl, setAnchorEl] = useState<HTMLElement | null>(null)
-  const open = Boolean(anchorEl)
-
-  const handleOpen = (event: React.MouseEvent<HTMLElement>) => {
-    setAnchorEl(event.currentTarget)
-  }
-
-  const handleClose = () => {
-    setAnchorEl(null)
-  }
-
-  return {
-    anchorEl,
-    open,
-    handleOpen,
-    handleClose,
-  }
-}
-
 export {
   Navigation,
   NavigationMenu,
@@ -368,4 +71,4 @@ export {
   NavigationMobileToggle,
   useNavigationDropdown,
 }
-export type { NavigationItem as NavigationItemType }
+export type { NavigationItemType }
diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/NavigationMenuItems.tsx b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationMenuItems.tsx
new file mode 100644
index 000000000..ef51ed399
--- /dev/null
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationMenuItems.tsx
@@ -0,0 +1,203 @@
+import { forwardRef, ReactNode, ElementType, type MouseEvent } from 'react'
+import {
+  Box,
+  Button,
+  ListItemIcon,
+  ListItemText,
+  Menu,
+  MenuItem,
+} from '@mui/material'
+import ExpandMoreIcon from '@mui/icons-material/ExpandMore'
+
+interface NavigationMenuProps {
+  children: ReactNode
+}
+
+const NavigationMenu = forwardRef<HTMLDivElement, NavigationMenuProps>(
+  ({ children, ...props }, ref) => {
+    return (
+      <Box
+        ref={ref}
+        component="nav"
+        sx={{
+          display: 'flex',
+          alignItems: 'center',
+          gap: 0.5,
+        }}
+        {...props}
+      >
+        {children}
+      </Box>
+    )
+  }
+)
+NavigationMenu.displayName = 'NavigationMenu'
+
+interface NavigationListProps {
+  children: ReactNode
+}
+
+const NavigationList = forwardRef<HTMLUListElement, NavigationListProps>(
+  ({ children, ...props }, ref) => {
+    return (
+      <Box
+        ref={ref}
+        component="ul"
+        sx={{
+          display: 'flex',
+          alignItems: 'center',
+          gap: 0.5,
+          listStyle: 'none',
+          m: 0,
+          p: 0,
+        }}
+        {...props}
+      >
+        {children}
+      </Box>
+    )
+  }
+)
+NavigationList.displayName = 'NavigationList'
+
+interface NavigationItemProps {
+  children: ReactNode
+}
+
+const NavigationItem = forwardRef<HTMLLIElement, NavigationItemProps>(
+  ({ children, ...props }, ref) => {
+    return (
+      <Box component="li" ref={ref} sx={{ position: 'relative' }} {...props}>
+        {children}
+      </Box>
+    )
+  }
+)
+NavigationItem.displayName = 'NavigationItem'
+
+interface NavigationTriggerProps {
+  children: ReactNode
+  onClick?: (event: MouseEvent<HTMLElement>) => void
+  hasDropdown?: boolean
+}
+
+const NavigationTrigger = forwardRef<HTMLButtonElement, NavigationTriggerProps>(
+  ({ children, onClick, hasDropdown = false, ...props }, ref) => {
+    return (
+      <Button
+        ref={ref}
+        onClick={onClick}
+        color="inherit"
+        endIcon={hasDropdown ? <ExpandMoreIcon fontSize="small" /> : undefined}
+        sx={{
+          textTransform: 'none',
+          fontWeight: 500,
+          color: 'text.primary',
+          '&:hover': {
+            bgcolor: 'action.hover',
+          },
+        }}
+        {...props}
+      >
+        {children}
+      </Button>
+    )
+  }
+)
+NavigationTrigger.displayName = 'NavigationTrigger'
+
+interface NavigationContentProps {
+  anchorEl: HTMLElement | null
+  open: boolean
+  onClose: () => void
+  children: ReactNode
+}
+
+const NavigationContent = forwardRef<HTMLDivElement, NavigationContentProps>(
+  ({ anchorEl, open, onClose, children, ...props }, ref) => {
+    return (
+      <Menu
+        ref={ref}
+        anchorEl={anchorEl}
+        open={open}
+        onClose={onClose}
+        anchorOrigin={{
+          vertical: 'bottom',
+          horizontal: 'left',
+        }}
+        transformOrigin={{
+          vertical: 'top',
+          horizontal: 'left',
+        }}
+        PaperProps={{
+          elevation: 2,
+          sx: {
+            mt: 1,
+            minWidth: 200,
+          },
+        }}
+        {...props}
+      >
+        {children}
+      </Menu>
+    )
+  }
+)
+NavigationContent.displayName = 'NavigationContent'
+
+interface NavigationLinkProps {
+  children: ReactNode
+  href?: string
+  onClick?: () => void
+  active?: boolean
+  disabled?: boolean
+  icon?: ReactNode
+  asChild?: boolean
+  component?: ElementType
+}
+
+const NavigationLink = forwardRef<HTMLElement, NavigationLinkProps>(
+  ({ children, href, onClick, active = false, disabled = false, icon, asChild, component, ...props }, ref) => {
+    if (asChild || component) {
+      return (
+        <MenuItem
+          ref={ref}
+          component={component || 'a'}
+          href={href}
+          onClick={onClick}
+          disabled={disabled}
+          selected={active}
+          {...props}
+        >
+          {icon && <ListItemIcon>{icon}</ListItemIcon>}
+          <ListItemText>{children}</ListItemText>
+        </MenuItem>
+      )
+    }
+
+    return (
+      <MenuItem
+        onClick={onClick}
+        disabled={disabled}
+        selected={active}
+        sx={{
+          borderRadius: 1,
+        }}
+        {...props}
+      >
+        {icon && <ListItemIcon>{icon}</ListItemIcon>}
+        <ListItemText>{children}</ListItemText>
+      </MenuItem>
+    )
+  }
+)
+NavigationLink.displayName = 'NavigationLink'
+
+export {
+  NavigationMenu,
+  NavigationList,
+  NavigationItem,
+  NavigationTrigger,
+  NavigationContent,
+  NavigationLink,
+}
diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/NavigationResponsive.tsx b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationResponsive.tsx
new file mode 100644
index 000000000..6cedc4ecd
--- /dev/null
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationResponsive.tsx
@@ -0,0 +1,30 @@
+import { forwardRef } from 'react'
+import { IconButton } from '@mui/material'
+import MenuIcon from '@mui/icons-material/Menu'
+
+interface NavigationMobileToggleProps {
+  onClick: () => void
+}
+
+const NavigationMobileToggle = forwardRef<HTMLButtonElement, NavigationMobileToggleProps>(
+  ({ onClick, ...props }, ref) => {
+    return (
+      <IconButton
+        ref={ref}
+        onClick={onClick}
+        edge="start"
+        color="inherit"
+        sx={{
+          display: { sm: 'none' },
+          mr: 2,
+        }}
+        {...props}
+      >
+        <MenuIcon />
+      </IconButton>
+    )
+  }
+)
+NavigationMobileToggle.displayName = 'NavigationMobileToggle'
+
+export { NavigationMobileToggle }
diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/NavigationStyling.tsx b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationStyling.tsx
new file mode 100644
index 000000000..c3a854269
--- /dev/null
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/NavigationStyling.tsx
@@ -0,0 +1,45 @@
+import { forwardRef, ReactNode } from 'react'
+import { Box, Divider } from '@mui/material'
+
+interface NavigationBrandProps {
+  children: ReactNode
+  href?: string
+  onClick?: () => void
+}
+
+const NavigationBrand = forwardRef<HTMLDivElement, NavigationBrandProps>(
+  ({ children, href, onClick, ...props }, ref) => {
+    return (
+      <Box
+        ref={ref}
+        onClick={onClick}
+        sx={{
+          display: 'flex',
+          alignItems: 'center',
+          cursor: onClick || href ? 'pointer' : 'default',
+          mr: 2,
+        }}
+        {...props}
+      >
+        {children}
+      </Box>
+    )
+  }
+)
+NavigationBrand.displayName = 'NavigationBrand'
+
+const NavigationSeparator = forwardRef<HTMLHRElement, Record<string, never>>(
+  (props, ref) => {
+    return <Divider ref={ref} orientation="vertical" flexItem sx={{ mx: 1 }} {...props} />
+  }
+)
+NavigationSeparator.displayName = 'NavigationSeparator'
+
+const NavigationSpacer = forwardRef<HTMLDivElement, Record<string, never>>(
+  (props, ref) => {
+    return <Box ref={ref} sx={{ flexGrow: 1 }} {...props} />
+  }
+)
+NavigationSpacer.displayName = 'NavigationSpacer'
+
+export { NavigationBrand, NavigationSeparator, NavigationSpacer }
diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/navigationConfig.ts b/frontends/nextjs/src/components/ui/organisms/navigation/navigationConfig.ts
new file mode 100644
index 000000000..02bd67edc
--- /dev/null
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/navigationConfig.ts
@@ -0,0 +1,12 @@
+import { ReactNode } from 'react'
+
+interface NavigationItem {
+  label: string
+  href?: string
+  onClick?: () => void
+  icon?: ReactNode
+  children?: NavigationItem[]
+  disabled?: boolean
+}
+
+export type NavigationItemType = NavigationItem
diff --git a/frontends/nextjs/src/components/ui/organisms/navigation/navigationHelpers.ts b/frontends/nextjs/src/components/ui/organisms/navigation/navigationHelpers.ts
new file mode 100644
index 000000000..5c7746cde
--- /dev/null
+++ b/frontends/nextjs/src/components/ui/organisms/navigation/navigationHelpers.ts
@@ -0,0 +1,23 @@
+import { useState, type MouseEvent } from 'react'
+
+function useNavigationDropdown() {
+  const [anchorEl, setAnchorEl] = useState<HTMLElement | null>(null)
+  const open = Boolean(anchorEl)
+
+  const handleOpen = (event: MouseEvent<HTMLElement>) => {
+    setAnchorEl(event.currentTarget)
+  }
+
+  const handleClose = () => {
+    setAnchorEl(null)
+  }
+
+  return {
+    anchorEl,
+    open,
+    handleOpen,
+    handleClose,
+  }
+}
+
+export { useNavigationDropdown }