Install LED strip (on, off + dimmable + warm white to cool white)

Hardware
1

Hello to you,
I have a question about lighting.
Available is:

  1. home assistant
  2. Z-Wave & Zigbee & (Wlan) network
  3. old switch (flush-mounted) and old lamp (without integration in HA)

What is my goal?

  1. install LED strip (on, off + dimmable + warm white to cool white) in place of old lamp
  2. old switch (flush-mounted) should remain and switch LED (on, off).
  3. home assistant should additionally switch LED (on, off + dimmable + warm white to cool white).

Which components are necessary here? I do not get on.

Many thanks Sven