Merge branch 'mov' into selector

[bytom/vapor.git] / application / mov / database / mock_mov_store.go

diff --git a/application/mov/database/mock_mov_store.go b/application/mov/database/mock_mov_store.go
new file mode 100644 (file)
index 0000000..ecb7c2f
--- /dev/null
+++ b/application/mov/database/mock_mov_store.go
@@ -0,0 +1,101 @@
+package database
+
+import (
+       "sort"
+
+       "github.com/vapor/application/mov/common"
+       "github.com/vapor/errors"
+       "github.com/vapor/protocol/bc"
+       "github.com/vapor/protocol/bc/types"
+)
+
+type MockMovStore struct {
+       TradePairs []*common.TradePair
+       OrderMap   map[string][]*common.Order
+       DBState    *common.MovDatabaseState
+}
+
+func (m *MockMovStore) GetMovDatabaseState() (*common.MovDatabaseState, error) {
+       return m.DBState, nil
+}
+
+func (m *MockMovStore) ListOrders(orderAfter *common.Order) ([]*common.Order, error) {
+       tradePair := &common.TradePair{FromAssetID: orderAfter.FromAssetID, ToAssetID: orderAfter.ToAssetID}
+       orders := m.OrderMap[tradePair.Key()]
+       begin := len(orders)
+       if orderAfter.Rate == 0 {
+               begin = 0
+       } else {
+               for i, order := range orders {
+                       if order.Rate == orderAfter.Rate {
+                               begin = i + 1
+                               break
+                       }
+               }
+       }
+       var result []*common.Order
+       for i := begin; i < len(orders) && len(result) < 3; i++ {
+               result = append(result, orders[i])
+       }
+       return result, nil
+}
+
+func (m *MockMovStore) ListTradePairsWithStart(fromAssetIDAfter, toAssetIDAfter *bc.AssetID) ([]*common.TradePair, error) {
+       begin := len(m.TradePairs)
+       if fromAssetIDAfter == nil || toAssetIDAfter == nil {
+               begin = 0
+       } else {
+               for i, tradePair := range m.TradePairs {
+                       if *tradePair.FromAssetID == *fromAssetIDAfter && *tradePair.ToAssetID == *toAssetIDAfter {
+                               begin = i + 1
+                               break
+                       }
+               }
+       }
+       var result []*common.TradePair
+       for i := begin; i < len(m.TradePairs) && len(result) < 3; i++ {
+               result = append(result, m.TradePairs[i])
+       }
+       return result, nil
+}
+
+type OrderSlice []*common.Order
+
+func (o OrderSlice) Len() int {
+       return len(o)
+}
+func (o OrderSlice) Swap(i, j int) {
+       o[i], o[j] = o[j], o[i]
+}
+func (o OrderSlice) Less(i, j int) bool {
+       return o[i].Rate < o[j].Rate
+}
+
+func (m *MockMovStore) ProcessOrders(addOrders []*common.Order, delOrders []*common.Order, blockHeader *types.BlockHeader) error {
+       for _, order := range addOrders {
+               tradePair := &common.TradePair{FromAssetID: order.FromAssetID, ToAssetID: order.ToAssetID}
+               m.OrderMap[tradePair.Key()] = append(m.OrderMap[tradePair.Key()], order)
+       }
+       for _, delOrder := range delOrders {
+               tradePair := &common.TradePair{FromAssetID: delOrder.FromAssetID, ToAssetID: delOrder.ToAssetID}
+               orders := m.OrderMap[tradePair.Key()]
+               for i, order := range orders {
+                       if delOrder.Key() == order.Key() {
+                               m.OrderMap[tradePair.Key()] = append(orders[0:i], orders[i+1:]...)
+                       }
+               }
+       }
+       for _, orders := range m.OrderMap {
+               sort.Sort(OrderSlice(orders))
+       }
+
+       if blockHeader.Height == m.DBState.Height {
+               m.DBState = &common.MovDatabaseState{Height: blockHeader.Height - 1, Hash: &blockHeader.PreviousBlockHash}
+       } else if blockHeader.Height == m.DBState.Height+1 {
+               blockHash := blockHeader.Hash()
+               m.DBState = &common.MovDatabaseState{Height: blockHeader.Height, Hash: &blockHash}
+       } else {
+               return errors.New("error block header")
+       }
+       return nil
+}