add: graphs et rushs

1 files changed, 34 insertions, 0 deletions

diff --git a/graphs/cpp/my_nfts/auction.hh b/graphs/cpp/my_nfts/auction.hh
new file mode 100644
index 0000000..9a1d162
--- /dev/null
+++ b/graphs/cpp/my_nfts/auction.hh
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "nft.hh"
+#include "person.hh"
+
+// Smart contract to auction a NFT.
+// It is a RAII class.
+class Auction
+{
+public:
+    // Start the auction with the given (non-null) NFT.
+    Auction(Person& organizer, NFT nft, uint initial_bid);
+    // Close the auction.
+    ~Auction();
+
+    // https://en.cppreference.com/w/cpp/language/rule_of_three#Rule_of_five
+    Auction(const Auction&&) = delete;
+    Auction(const Auction&) = delete;
+    Auction& operator=(const Auction&&) = delete;
+    Auction& operator=(const Auction&) = delete;
+
+    // Allow a person to bid at the auction.
+    bool bid(Person& person, uint money);
+
+    // Getters for the nft name and highest bid.
+    const std::string& get_nft_name() const;
+    uint get_highest_bid() const;
+
+private:
+    Person& organizer_;
+    NFT nft_;
+    Person* highest_bidder_;
+    uint highest_bid_;
+};