AthleteStudioMintCache

1/// AthleteStudioMintCache is a utility contract to keep track of Athlete Studio editions
2/// that have been minted in order to prevent duplicate mints.
3///
4/// It should be deployed to the same account as the AthleteStudio contract.
5///
6pub contract AthleteStudioMintCache {
7
8    /// This dictionary indexes editions by their mint ID.
9    ///
10    /// It is populated at mint time and used to prevent duplicate mints.
11    /// The mint ID can be any unique string value,
12    /// for example the hash of the edition metadata.
13    ///
14    access(self) let editionsByMintID: {String: UInt64}
15
16    /// Get an edition ID by its mint ID.
17    ///
18    /// This function returns nil if the edition is not in this index.
19    ///
20    pub fun getEditionByMintID(mintID: String): UInt64? {
21        return AthleteStudioMintCache.editionsByMintID[mintID]
22    }
23
24    /// Insert an edition mint ID into the index.
25    /// 
26    /// This function can only be called by other contracts deployed to this account.
27    /// It is intended to be called by the AthleteStudio contract when
28    /// creating new editions.
29    ///
30    access(account) fun insertEditionMintID(mintID: String, editionID: UInt64) {
31        AthleteStudioMintCache.editionsByMintID[mintID] = editionID
32    }
33
34    init() {
35        self.editionsByMintID = {}
36    }
37}
38