store.gno

 1package router
 2
 3import (
 4	"gno.land/p/gnoswap/store"
 5	"gno.land/p/nt/ufmt"
 6)
 7
 8type StoreKey string
 9
10func (s StoreKey) String() string {
11	return string(s)
12}
13
14const (
15	StoreKeySwapFee StoreKey = "swapFee" // Swap fee in basis points
16)
17
18type routerStore struct {
19	kvStore store.KVStore
20}
21
22func (s *routerStore) HasSwapFeeKey() bool {
23	return s.kvStore.Has(StoreKeySwapFee.String())
24}
25
26// GetSwapFee retrieves the current swap fee.
27// If not set, returns the default swap fee.
28func (s *routerStore) GetSwapFee() uint64 {
29	result, err := s.kvStore.Get(StoreKeySwapFee.String())
30	if err != nil {
31		panic(err)
32	}
33
34	swapFee, ok := result.(uint64)
35	if !ok {
36		panic(ufmt.Sprintf("failed to cast result to uint64: %T", result))
37	}
38
39	return swapFee
40}
41
42// SetSwapFee stores the swap fee.
43func (s *routerStore) SetSwapFee(fee uint64) error {
44	return s.kvStore.Set(StoreKeySwapFee.String(), fee)
45}
46
47// NewRouterStore creates a new router store instance with the provided KV store.
48// This function is used by the upgrade system to create storage instances for each implementation.
49func NewRouterStore(kvStore store.KVStore) IRouterStore {
50	rs := &routerStore{
51		kvStore: kvStore,
52	}
53
54	return rs
55}