market/src/pages/_app.tsx

// import App from "next/app";
import React, { ReactElement, useEffect } from 'react'
import type { AppProps /*, AppContext */ } from 'next/app'
import { GoogleTagManager } from '@next/third-parties/google'
import { UserPreferencesProvider } from '@context/UserPreferences'
import PricesProvider from '@context/Prices'
import UrqlProvider from '@context/UrqlProvider'
import ConsentProvider from '@context/CookieConsent'
import App from '../../src/components/App'
import { OrbisProvider } from '@context/DirectMessages'
import '@oceanprotocol/typographies/css/ocean-typo.css'
import '../stylesGlobal/styles.css'
import Decimal from 'decimal.js'
import MarketMetadataProvider from '@context/MarketMetadata'
import { WagmiConfig } from 'wagmi'
import { ConnectKitProvider } from 'connectkit'
import { connectKitTheme, wagmiClient } from '@utils/wallet'
import posthog from 'posthog-js'
import { PostHogProvider } from 'posthog-js/react'
import { useRouter } from 'next/router'

// Check that PostHog is client-side (used to handle Next.js SSR)
if (typeof window !== 'undefined') {
  posthog.init(process.env.NEXT_PUBLIC_POSTHOG_KEY, {
    api_host: process.env.NEXT_PUBLIC_POSTHOG_HOST || 'https://eu.posthog.com',
    persistence: 'memory'
  })
}

function MyApp({ Component, pageProps }: AppProps): ReactElement {
  Decimal.set({ rounding: 1 })
  const router = useRouter()

  useEffect(() => {
    // Track page views
    const handleRouteChange = () => posthog?.capture('$pageview')
    router.events.on('routeChangeComplete', handleRouteChange)

    return () => {
      router.events.off('routeChangeComplete', handleRouteChange)
    }
  }, [router.events])

  return (
    <>
      <GoogleTagManager gtmId={process.env.NEXT_PUBLIC_GA_ID} />
      <WagmiConfig client={wagmiClient}>
        <ConnectKitProvider
          options={{ initialChainId: 0 }}
          customTheme={connectKitTheme}
        >
          <MarketMetadataProvider>
            <UrqlProvider>
              <UserPreferencesProvider>
                <PricesProvider>
                  <ConsentProvider>
                    <OrbisProvider>
                      <PostHogProvider client={posthog}>
                        <App>
                          <Component {...pageProps} />
                        </App>
                      </PostHogProvider>
                    </OrbisProvider>
                  </ConsentProvider>
                </PricesProvider>
              </UserPreferencesProvider>
            </UrqlProvider>
          </MarketMetadataProvider>
        </ConnectKitProvider>
      </WagmiConfig>
    </>
  )
}

export default MyApp