Initial aria2go implementation (#80)

pkg/aria2go/models.go

@@ -0,0 +1,51 @@
+// Copyright (C) 2019 Vincent Chueng (coolingfall@gmail.com).
+
+package aria2go
+
+// Type definition for download information.
+type DownloadInfo struct {
+	Status         int
+	TotalLength    int64
+	BytesCompleted int64
+	BytesUpload    int64
+	DownloadSpeed  int
+	UploadSpeed    int
+	NumPieces      int
+	Connections    int
+	BitField       string
+	InfoHash       string
+	MetaInfo       MetaInfo
+	Files          []File
+	ErrorCode      int
+	FollowedByGid  string
+}
+
+// Type definition for BitTorrent meta information.
+type MetaInfo struct {
+	Name         string
+	AnnounceList []string
+	Comment      string
+	CreationUnix int64
+	Mode         string
+}
+
+// Type definition for file in torrent.
+type File struct {
+	Index           int
+	Name            string
+	Length          int64
+	CompletedLength int64
+	Selected        bool
+}
+
+type Options map[string]string
+
+// Type definition for download event, this will keep the same with aria2.
+const (
+	onStart = iota + 1
+	onPause
+	onStop
+	onComplete
+	onError
+	onBTComplete
+)