Add vendor (steam)

vendor/github.com/Philipp15b/go-steam/trade/trade.go

@@ -0,0 +1,122 @@
+package trade
+
+import (
+	"errors"
+	"time"
+
+	"github.com/Philipp15b/go-steam/steamid"
+	"github.com/Philipp15b/go-steam/trade/tradeapi"
+)
+
+const pollTimeout = time.Second
+
+type Trade struct {
+	ThemId steamid.SteamId
+
+	MeReady, ThemReady bool
+
+	lastPoll     time.Time
+	queuedEvents []interface{}
+	api          *tradeapi.Trade
+}
+
+func New(sessionId, steamLogin, steamLoginSecure string, other steamid.SteamId) *Trade {
+	return &Trade{
+		other,
+		false, false,
+		time.Unix(0, 0),
+		nil,
+		tradeapi.New(sessionId, steamLogin, steamLoginSecure, other),
+	}
+}
+
+func (t *Trade) Version() uint {
+	return t.api.Version
+}
+
+// Returns all queued events and removes them from the queue without performing a HTTP request, like Poll() would.
+func (t *Trade) Events() []interface{} {
+	qe := t.queuedEvents
+	t.queuedEvents = nil
+	return qe
+}
+
+func (t *Trade) onStatus(status *tradeapi.Status) error {
+	if !status.Success {
+		return errors.New("trade: returned status not successful! error message: " + status.Error)
+	}
+
+	if status.NewVersion {
+		t.api.Version = status.Version
+
+		t.MeReady = status.Me.Ready == true
+		t.ThemReady = status.Them.Ready == true
+	}
+
+	switch status.TradeStatus {
+	case tradeapi.TradeStatus_Complete:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Complete})
+	case tradeapi.TradeStatus_Cancelled:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Cancelled})
+	case tradeapi.TradeStatus_Timeout:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Timeout})
+	case tradeapi.TradeStatus_Failed:
+		t.addEvent(&TradeEndedEvent{TradeEndReason_Failed})
+	case tradeapi.TradeStatus_Open:
+		// nothing
+	default:
+		// ignore too
+	}
+
+	t.updateEvents(status.Events)
+	return nil
+}
+
+func (t *Trade) updateEvents(events tradeapi.EventList) {
+	if len(events) == 0 {
+		return
+	}
+
+	var lastLogPos uint
+	for i, event := range events {
+		if i < t.api.LogPos {
+			continue
+		}
+		if event.SteamId != t.ThemId {
+			continue
+		}
+
+		if lastLogPos < i {
+			lastLogPos = i
+		}
+
+		switch event.Action {
+		case tradeapi.Action_AddItem:
+			t.addEvent(&ItemAddedEvent{newItem(event)})
+		case tradeapi.Action_RemoveItem:
+			t.addEvent(&ItemRemovedEvent{newItem(event)})
+		case tradeapi.Action_Ready:
+			t.ThemReady = true
+			t.addEvent(new(ReadyEvent))
+		case tradeapi.Action_Unready:
+			t.ThemReady = false
+			t.addEvent(new(UnreadyEvent))
+		case tradeapi.Action_SetCurrency:
+			t.addEvent(&SetCurrencyEvent{
+				newCurrency(event),
+				event.OldAmount,
+				event.NewAmount,
+			})
+		case tradeapi.Action_ChatMessage:
+			t.addEvent(&ChatEvent{
+				event.Text,
+			})
+		}
+	}
+
+	t.api.LogPos = uint(lastLogPos) + 1
+}
+
+func (t *Trade) addEvent(event interface{}) {
+	t.queuedEvents = append(t.queuedEvents, event)
+}