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8
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1 package socket
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2
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3 import (
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4 "encoding/json"
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5 "log"
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6 "net/url"
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7 "os"
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8 "os/signal"
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9 "strings"
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10 "time"
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11
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12 "github.com/denniscmcom/pacobot/bot"
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13 "github.com/denniscmcom/pacobot/event"
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14 "github.com/gorilla/websocket"
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15 )
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16
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17 func Connect(authToken string) {
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18 interrupt := make(chan os.Signal, 1)
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19 signal.Notify(interrupt, os.Interrupt)
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20
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21 baseUrl := url.URL{Scheme: "wss", Host: "eventsub.wss.twitch.tv", Path: "/ws"}
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22
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23 log.Println("socket: connecting...")
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24 conn, _, err := websocket.DefaultDialer.Dial(baseUrl.String(), nil)
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25
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26 if err != nil {
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27 log.Fatal(err)
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28 }
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29
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30 defer conn.Close()
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31
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32 log.Println("socket: connected")
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33
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34 var timeout time.Ticker
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10
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35 done := make(chan struct{})
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8
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36
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37 go readMsg(done, conn, &timeout, authToken)
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38
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39 for {
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40 select {
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41 case <-interrupt:
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42 closeConn(conn)
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43
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44 select {
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45 case <-done:
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46 case <-time.After(time.Second):
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47 }
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48 return
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49 case <-done:
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50 log.Println("socket: connection closed by server")
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51 Connect(authToken)
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52 case <-timeout.C:
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53 log.Println("socket: connection lost")
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54 timeout.Stop()
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55 Connect(authToken)
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56 }
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57 }
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58 }
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59
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10
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60 func readMsg(done chan struct{}, conn *websocket.Conn, timeout *time.Ticker, authToken string) {
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61 defer close(done)
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8
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62 var timeout_secs time.Duration
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63
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64 for {
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65 log.Println("socket: waiting for msg...")
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66 _, msg, err := conn.ReadMessage()
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67
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68 if err != nil {
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69 break
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70 }
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71
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72 var resMetadata Res_Metadata
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73
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74 if err := json.Unmarshal(msg, &resMetadata); err != nil {
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75 log.Fatal(err)
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76 }
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77
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78 msgType := resMetadata.Metadata.MsgType
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79 log.Printf("socket: %s msg received", msgType)
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80
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81 switch msgType {
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82 case "session_welcome":
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83 var resWelcome Res_Welcome
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84
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85 if err := json.Unmarshal(msg, &resWelcome); err != nil {
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86 log.Fatal(err)
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87 }
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88
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89 timeout_secs = time.Duration(resWelcome.Payload.Session.KeepaliveTimeout+3) * time.Second
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90 timeout = time.NewTicker(timeout_secs)
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91 defer timeout.Stop()
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92
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93 event.ChannelChatMsgSub(authToken, resWelcome.Payload.Session.Id)
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94
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95 case "session_keepalive":
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96 timeout.Reset(timeout_secs)
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97 log.Println("socket: timeout resetted")
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98
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99 case "notification":
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100 var resMetadataNotif Res_Metadata_Notif
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101
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102 if err := json.Unmarshal(msg, &resMetadataNotif); err != nil {
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103 log.Fatal(err)
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104 }
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105
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106 subType := resMetadataNotif.Metadata.SubType
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107 log.Printf("socket: %s event received", subType)
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108
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109 switch subType {
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110 case "channel.chat.message":
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111 var resNotifChannelChatMsg Res_Notif_ChannelChatMsg
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112
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113 if err := json.Unmarshal(msg, &resNotifChannelChatMsg); err != nil {
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114 log.Fatal(err)
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115 }
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116
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117 chatMsg := resNotifChannelChatMsg.Payload.Event.Msg.Text
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118
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119 if strings.HasPrefix(chatMsg, "!") {
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10
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120 go bot.HandleCmd(strings.Split(chatMsg[1:], " "))
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8
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121 }
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122 }
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123 default:
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10
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124 log.Fatalf("socket: %s message type not implemented", msgType)
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8
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125 }
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126 }
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127 }
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128
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129 func closeConn(conn *websocket.Conn) {
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130 err := conn.WriteMessage(
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131 websocket.CloseMessage,
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132 websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
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133
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134 if err != nil {
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135 log.Fatal(err)
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136 }
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137
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138 log.Println("socket: connection closed")
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139 }
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140
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141 // func test() {
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142 // var res Response
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143
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144 // // Deserializas
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145 // err := json.Unmarshal([]byte(jsonData), &res)
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146
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147 // if err != nil {
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148 // fmt.Println("Error al deserializar:", err)
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149 // return
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150 // }
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151
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152 // // Conviertes la estructura nuevamente a JSON formateado
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153
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154 // formattedJSON, err := json.MarshalIndent(res, "", " ")
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155
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156 // if err != nil {
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157 // fmt.Println("Error al formatear JSON:", err)
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158 // return
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159 // }
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160 // }
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