/
stream_payment.go
122 lines (104 loc) · 3.45 KB
/
stream_payment.go
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package keeper
import (
"encoding/binary"
"math"
"github.com/OmniFlix/streampay/v2/x/streampay/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/gogoproto/proto"
)
// GetNextStreamPaymentNumber get next stream payment number
func (k Keeper) GetNextStreamPaymentNumber(ctx sdk.Context) uint64 {
store := ctx.KVStore(k.storeKey)
byteKey := types.PrefixPaymentStreamCount
bz := store.Get(byteKey)
// Count doesn't exist: no element
if bz == nil {
return 0
}
// Parse bytes
return binary.BigEndian.Uint64(bz)
}
// SetNextStreamPaymentNumber sets next stream payment number
func (k Keeper) SetNextStreamPaymentNumber(ctx sdk.Context, count uint64) {
store := ctx.KVStore(k.storeKey)
byteKey := types.PrefixPaymentStreamCount
bz := make([]byte, 8)
binary.BigEndian.PutUint64(bz, count)
store.Set(byteKey, bz)
}
// GetStreamPayment gets a specific StreamPayment in the store from its id
func (k Keeper) GetStreamPayment(ctx sdk.Context, id string) (val types.StreamPayment, found bool) {
store := ctx.KVStore(k.storeKey)
key := types.KeyPrefixSteamPayment(id)
if !store.Has(key) {
return val, false
}
bz := store.Get(key)
k.cdc.MustUnmarshal(bz, &val)
return val, true
}
// SetStreamPayment set a specific StreamPayment in the store with its id
func (k Keeper) SetStreamPayment(ctx sdk.Context, streamPayment types.StreamPayment) {
store := ctx.KVStore(k.storeKey)
b := k.cdc.MustMarshal(&streamPayment)
store.Set(types.KeyPrefixSteamPayment(streamPayment.Id), b)
}
// RemoveStreamPayment removes a stream-payment from the store
func (k Keeper) RemoveStreamPayment(ctx sdk.Context, id string) {
store := ctx.KVStore(k.storeKey)
store.Delete(types.KeyPrefixSteamPayment(id))
}
func (k Keeper) IterateStreamPayments(ctx sdk.Context, fn func(index int64, streamPayment types.StreamPayment) (stop bool)) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.PrefixPaymentStreamId)
defer iterator.Close()
i := int64(0)
for ; iterator.Valid(); iterator.Next() {
sp := types.StreamPayment{}
err := proto.Unmarshal(iterator.Value(), &sp)
if err != nil {
panic(err)
}
stop := fn(i, sp)
if stop {
break
}
i++
}
}
// GetAllStreamPayments returns all PaymentStreams
func (k Keeper) GetAllStreamPayments(ctx sdk.Context) (streamPayments []types.StreamPayment) {
k.IterateStreamPayments(ctx, func(index int64, streamPayment types.StreamPayment) (stop bool) {
streamPayments = append(streamPayments, streamPayment)
return false
})
return streamPayments
}
func (k Keeper) getStreamedAmount(ctx sdk.Context, streamPayment types.StreamPayment) float64 {
nowTime := ctx.BlockTime().Unix()
startTime := streamPayment.StartTime.Unix()
endTime := streamPayment.EndTime.Unix()
totalAmount := streamPayment.TotalAmount.Amount.Int64()
var percentage float64
if nowTime >= endTime {
percentage = 1.0
} else {
percentage = math.Abs(float64(nowTime-startTime) / float64(endTime-startTime))
}
return float64(totalAmount) * percentage
}
func (k Keeper) getStreamedAmountForPeriodicStreamPayment(ctx sdk.Context, streamPayment types.StreamPayment) float64 {
streamedAmount := int64(0)
nowTime := ctx.BlockTime().Unix()
startTime := streamPayment.StartTime.Unix()
totalDuration := int64(0)
for _, period := range streamPayment.Periods {
totalDuration += period.Duration
if (startTime + totalDuration) <= nowTime {
streamedAmount += period.Amount
} else {
break
}
}
return float64(streamedAmount)
}