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20 lines
1.3 KiB
20 lines
1.3 KiB
2 years ago
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# Time is Money
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We organize a bit of yield management. Tickets are now 0.01 ether if they are bought up to 10 days before the start of the festival and 0.1 afterward.
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Also, in order for payments to go orderly, we decide that artists can get payed only 3 days after the festival. Also, 10 days after the end of the festival, the organizer can get the reminder of the benefits.
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### Instructions
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- Create a Smart Contract `TimeIsMoney` that takes a uint as a parameter for its `constructor()` function that represents the date of the festival.
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- Add a function `buyTicket()` that allows to buy one ticket for a minimum price of 0.01 ethers 10 days before its start, and 0.1 afterward.
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- A function `ticketsOf()` that returns the number of tickets owned by that particular address.
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- Add a function `addPayedArtist()` that takes as parameters a string and an address to register an artist to the festival.
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- Add a function `getPayed()` that allows an artist registered with the function above to receive 1 Ether, three days after the start of the festival.
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- Add a function `getBenefits()` that can be triggered only by the organizer 10 days after the start of the festival. It receives the remainder of money from the festival.
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### Notions
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- [unix time](https://en.wikipedia.org/wiki/Unix_time)
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- [solidity docs](https://docs.soliditylang.org/)
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