Cryptolottogames

I need a smart contract to distribute 3 prizes
1 – 50%
2- 25%
3- 15%
Of the total pool
There will be 10 participants in each pool.
After 30 mins contract will select 3 rendom winners and the prize will be distributed from the contract to the winner wallets
Pool will be started as soon as 10 participants joins the pool and if the pool remains unfulfilled then the pool will be cancelled after 30 mins and the amount deposited will be refunded back to the participants one wallet can join only once in a single pool.
I need total 6 pools 3 with 10 participants and 3 with 1000 participants
I also want a website for the above and web3 integration for the same