1package faucet
2
3import (
4 "errors"
5 "std"
6
7 "gno.land/p/demo/avl"
8 "gno.land/p/demo/ufmt"
9)
10
11var (
12 // configurable by admin.
13 gAdminAddr std.Address = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5")
14 gControllers = avl.NewTree()
15 gControllersMaxSize = 10 // limit it to 10
16 gInPause = false
17 gMessage = "# Community Faucet.\n\n"
18
19 // internal vars, for stats.
20 gTotalTransferred std.Coins
21 gTotalTransfers = uint(0)
22
23 // per request limit, 350 gnot
24 gLimit std.Coin = std.NewCoin("ugnot", 350000000)
25)
26
27func Transfer(to std.Address, send int64) string {
28 if err := assertIsController(); err != nil {
29 return err.Error()
30 }
31
32 if gInPause {
33 return errors.New("faucet in pause").Error()
34 }
35
36 // limit the per request
37 if send > gLimit.Amount {
38 return errors.New("Per request limit " + gLimit.String() + " exceed").Error()
39 }
40 sendCoins := std.Coins{std.NewCoin("ugnot", send)}
41
42 gTotalTransferred = gTotalTransferred.Add(sendCoins)
43 gTotalTransfers++
44
45 banker := std.GetBanker(std.BankerTypeRealmSend)
46 pkgaddr := std.CurrentRealm().Addr()
47 banker.SendCoins(pkgaddr, to, sendCoins)
48 return ""
49}
50
51func GetPerTransferLimit() int64 {
52 return gLimit.Amount
53}
54
55func Render(_ string) string {
56 banker := std.GetBanker(std.BankerTypeRealmSend)
57 balance := banker.GetCoins(std.CurrentRealm().Addr())
58
59 output := gMessage
60 if gInPause {
61 output += "Status: inactive.\n"
62 } else {
63 output += "Status: active.\n"
64 }
65 output += ufmt.Sprintf("Balance: %s.\n", balance.String())
66 output += ufmt.Sprintf("Total transfers: %s (in %d times).\n\n", gTotalTransferred.String(), gTotalTransfers)
67
68 output += "Package address: " + std.CurrentRealm().Addr().String() + "\n\n"
69 output += ufmt.Sprintf("Admin: %s\n\n ", gAdminAddr.String())
70 output += ufmt.Sprintf("Controllers:\n\n ")
71
72 for i := 0; i < gControllers.Size(); i++ {
73 _, v := gControllers.GetByIndex(i)
74 output += ufmt.Sprintf("%s ", v.(std.Address))
75 }
76
77 output += "\n\n"
78 output += ufmt.Sprintf("Per request limit: %s\n\n", gLimit.String())
79
80 return output
81}
82
83func assertIsController() error {
84 caller := std.GetOrigCaller()
85
86 ok := gControllers.Has(caller.String())
87 if !ok {
88 return errors.New(caller.String() + " is not on the controller list")
89 }
90 return nil
91}
faucet.gno
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