GaiaFee

1// Gaia Fees
2//
3// Simple fee manager
4//
5pub contract GaiaFee {
6
7    pub let commonFeeManagerStoragePath: StoragePath
8
9    pub event SellerFeeChanged(value: UFix64)
10    pub event BuyerFeeChanged(value: UFix64)
11    pub event FeeAddressUpdated(label: String, address: Address)
12
13    access(self) var feeAddresses: {String:Address}
14
15    // Seller fee [0..1)
16    pub var sellerFee: UFix64
17
18    // BuyerFee fee [0..1)
19    pub var buyerFee: UFix64
20
21    pub resource Manager {
22        pub fun setSellerFee(_ fee: UFix64) {
23            GaiaFee.sellerFee = fee
24            emit SellerFeeChanged(value: GaiaFee.sellerFee)
25        }
26
27        pub fun setBuyerFee(_ fee: UFix64) {
28            GaiaFee.buyerFee = fee
29            emit BuyerFeeChanged(value: GaiaFee.buyerFee)
30        }
31
32        pub fun setFeeAddress(_ label: String, address: Address) {
33            GaiaFee.feeAddresses[label] = address
34            emit FeeAddressUpdated(label: label, address: address)
35        }
36    }
37
38    init() {
39        self.sellerFee = 0.05 
40        emit SellerFeeChanged(value: GaiaFee.sellerFee)
41        self.buyerFee = 0.0 // Gaia Buyer Fee
42        emit BuyerFeeChanged(value: GaiaFee.buyerFee)
43
44        self.feeAddresses = {}
45
46        self.commonFeeManagerStoragePath = /storage/commonFeeManager
47        self.account.save(<- create Manager(), to: self.commonFeeManagerStoragePath)
48    }
49
50    pub fun feeAddress(): Address {
51        return self.feeAddresses["gaia"] ?? self.account.address
52    }
53
54    pub fun feeAddressByName(_ label: String): Address {
55        return self.feeAddresses[label] ?? self.account.address
56    }
57
58    pub fun addressMap(): {String:Address} {
59        return GaiaFee.feeAddresses
60    }
61}
62