Moved Filter's wrapping functions to their own util package. Fixes #61

* CLI ethereum should no longer require the Qt/QML package

3 files changed, 122 insertions, 95 deletions

diff --git a/ethchain/filter.go b/ethchain/filter.go
index 447163b68..90f2512ab 100644
--- a/ethchain/filter.go
+++ b/ethchain/filter.go
@@ -6,12 +6,10 @@ import (
 	"math"
 
 	"github.com/ethereum/eth-go/ethstate"
-	"github.com/ethereum/eth-go/ethutil"
-	"gopkg.in/qml.v1"
 )
 
-type data struct {
-	id, address []byte
+type AccountChange struct {
+	Address, StateAddress []byte
 }
 
 // Filtering interface
@@ -23,7 +21,7 @@ type Filter struct {
 	from, to [][]byte
 	max      int
 
-	altered []data
+	Altered []AccountChange
 
 	BlockCallback   func(*Block)
 	MessageCallback func(ethstate.Messages)
@@ -35,48 +33,8 @@ func NewFilter(eth EthManager) *Filter {
 	return &Filter{eth: eth}
 }
 
-func NewFilterFromMap(object map[string]interface{}, eth EthManager) *Filter {
-	filter := NewFilter(eth)
-
-	if object["earliest"] != nil {
-		val := ethutil.NewValue(object["earliest"])
-		filter.SetEarliestBlock(val.Int())
-	}
-
-	if object["latest"] != nil {
-		val := ethutil.NewValue(object["latest"])
-		filter.SetLatestBlock(val.Int())
-	}
-
-	if object["to"] != nil {
-		val := ethutil.NewValue(object["to"])
-		filter.AddTo(ethutil.Hex2Bytes(val.Str()))
-	}
-
-	if object["from"] != nil {
-		val := ethutil.NewValue(object["from"])
-		filter.AddFrom(ethutil.Hex2Bytes(val.Str()))
-	}
-
-	if object["max"] != nil {
-		val := ethutil.NewValue(object["max"])
-		filter.SetMax(int(val.Uint()))
-	}
-
-	if object["skip"] != nil {
-		val := ethutil.NewValue(object["skip"])
-		filter.SetSkip(int(val.Uint()))
-	}
-
-	if object["altered"] != nil {
-		filter.altered = makeAltered(object["altered"])
-	}
-
-	return filter
-}
-
-func (self *Filter) AddAltered(id, address []byte) {
-	self.altered = append(self.altered, data{id, address})
+func (self *Filter) AddAltered(address, stateAddress []byte) {
+	self.Altered = append(self.Altered, AccountChange{address, stateAddress})
 }
 
 // Set the earliest and latest block for filtering.
@@ -185,16 +143,16 @@ func (self *Filter) FilterMessages(msgs []*ethstate.Message) []*ethstate.Message
 		}
 
 		var match bool
-		if len(self.altered) == 0 {
+		if len(self.Altered) == 0 {
 			match = true
 		}
 
-		for _, item := range self.altered {
-			if len(item.id) > 0 && bytes.Compare(message.To, item.id) != 0 {
+		for _, accountChange := range self.Altered {
+			if len(accountChange.Address) > 0 && bytes.Compare(message.To, accountChange.Address) != 0 {
 				continue
 			}
 
-			if len(item.address) > 0 && !includes(message.ChangedAddresses, item.address) {
+			if len(accountChange.StateAddress) > 0 && !includes(message.ChangedAddresses, accountChange.StateAddress) {
 				continue
 			}
 
@@ -246,47 +204,3 @@ func (self *Filter) bloomFilter(block *Block) bool {
 
 	return fromIncluded && toIncluded
 }
-
-// Conversion methodn
-func mapToData(m map[string]interface{}) (d data) {
-	if str, ok := m["id"].(string); ok {
-		d.id = ethutil.Hex2Bytes(str)
-	}
-
-	if str, ok := m["at"].(string); ok {
-		d.address = ethutil.Hex2Bytes(str)
-	}
-
-	return
-}
-
-// data can come in in the following formats:
-// ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
-func makeAltered(v interface{}) (d []data) {
-	if str, ok := v.(string); ok {
-		d = append(d, data{ethutil.Hex2Bytes(str), nil})
-	} else if obj, ok := v.(map[string]interface{}); ok {
-		d = append(d, mapToData(obj))
-	} else if slice, ok := v.([]interface{}); ok {
-		for _, item := range slice {
-			d = append(d, makeAltered(item)...)
-		}
-	} else if qList, ok := v.(*qml.List); ok {
-		var s []interface{}
-		qList.Convert(&s)
-
-		fmt.Println(s)
-
-		d = makeAltered(s)
-	} else if qMap, ok := v.(*qml.Map); ok {
-		var m map[string]interface{}
-		qMap.Convert(&m)
-		fmt.Println(m)
-
-		d = makeAltered(m)
-	} else {
-		panic(fmt.Sprintf("makeAltered err (unknown conversion): %T\n", v))
-	}
-
-	return
-}
diff --git a/ui/filter.go b/ui/filter.go
new file mode 100644
index 000000000..29a7aae86
--- /dev/null
+++ b/ui/filter.go
@@ -0,0 +1,75 @@
+package ui
+
+import (
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *ethchain.Filter {
+	filter := ethchain.NewFilter(eth)
+
+	if object["earliest"] != nil {
+		val := ethutil.NewValue(object["earliest"])
+		filter.SetEarliestBlock(val.Int())
+	}
+
+	if object["latest"] != nil {
+		val := ethutil.NewValue(object["latest"])
+		filter.SetLatestBlock(val.Int())
+	}
+
+	if object["to"] != nil {
+		val := ethutil.NewValue(object["to"])
+		filter.AddTo(ethutil.Hex2Bytes(val.Str()))
+	}
+
+	if object["from"] != nil {
+		val := ethutil.NewValue(object["from"])
+		filter.AddFrom(ethutil.Hex2Bytes(val.Str()))
+	}
+
+	if object["max"] != nil {
+		val := ethutil.NewValue(object["max"])
+		filter.SetMax(int(val.Uint()))
+	}
+
+	if object["skip"] != nil {
+		val := ethutil.NewValue(object["skip"])
+		filter.SetSkip(int(val.Uint()))
+	}
+
+	if object["altered"] != nil {
+		filter.Altered = makeAltered(object["altered"])
+	}
+
+	return filter
+}
+
+// Conversion methodn
+func mapToAccountChange(m map[string]interface{}) (d ethchain.AccountChange) {
+	if str, ok := m["id"].(string); ok {
+		d.Address = ethutil.Hex2Bytes(str)
+	}
+
+	if str, ok := m["at"].(string); ok {
+		d.StateAddress = ethutil.Hex2Bytes(str)
+	}
+
+	return
+}
+
+// data can come in in the following formats:
+// ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
+func makeAltered(v interface{}) (d []ethchain.AccountChange) {
+	if str, ok := v.(string); ok {
+		d = append(d, ethchain.AccountChange{ethutil.Hex2Bytes(str), nil})
+	} else if obj, ok := v.(map[string]interface{}); ok {
+		d = append(d, mapToAccountChange(obj))
+	} else if slice, ok := v.([]interface{}); ok {
+		for _, item := range slice {
+			d = append(d, makeAltered(item)...)
+		}
+	}
+
+	return
+}
diff --git a/ui/qt/filter.go b/ui/qt/filter.go
new file mode 100644
index 000000000..86a34f37b
--- /dev/null
+++ b/ui/qt/filter.go
@@ -0,0 +1,38 @@
+package qt
+
+import (
+	"fmt"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ui"
+	"gopkg.in/qml.v1"
+)
+
+func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *ethchain.Filter {
+	filter := ui.NewFilterFromMap(object, eth)
+
+	if object["altered"] != nil {
+		filter.Altered = makeAltered(object["altered"])
+	}
+
+	return filter
+}
+
+func makeAltered(v interface{}) (d []ethchain.AccountChange) {
+	if qList, ok := v.(*qml.List); ok {
+		var s []interface{}
+		qList.Convert(&s)
+
+		fmt.Println(s)
+
+		d = makeAltered(s)
+	} else if qMap, ok := v.(*qml.Map); ok {
+		var m map[string]interface{}
+		qMap.Convert(&m)
+		fmt.Println(m)
+
+		d = makeAltered(m)
+	}
+
+	return
+}