need a smart contract write for Ethereum token Airdrop \ Pseudo sale
Please evaluate the feasibility to implement such an idea and give me price, timing:
1. A contract that issues tokens (for example, 10 million total will be created) only after sending 0 ETH to it. Only the gas of the sender will be spent. In return, the sender receives, for example, 100 tokens.
2. Bonus breakdown: 1 day plus 20%, next day 15%, etc..
3. For good distribution - 1 the sender can send eth to the contract only once for the entire period of the distribution of the tokens (it is important to realize this so that there is no repeated use of the contract by one person and the distribution has passed honestly)
the contract creatorshould be able to receive a certain percentage of the number of generated tokens (you can give 100 to each who requested and 20 to the contract creator - here is an example [url removed, login to view]
4. The ability to burn unused tokens
5. Parameters set at the time of creation of the contract or in the code (the code should be written with explanations for further manipulations)
Roughly speaking, it is necessary in 7 days to make the distribution of tokens to anyone who will request them from the contract and get some % of distributed tokens