mirror of
https://github.com/jwetzell/showbridge-go.git
synced 2026-04-27 05:15:47 +00:00
116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
package module
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"log/slog"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/jwetzell/psn-go"
|
|
"github.com/jwetzell/showbridge-go/internal/common"
|
|
"github.com/jwetzell/showbridge-go/internal/config"
|
|
"github.com/jwetzell/showbridge-go/internal/route"
|
|
)
|
|
|
|
type PSNClient struct {
|
|
config config.ModuleConfig
|
|
conn *net.UDPConn
|
|
ctx context.Context
|
|
router route.RouteIO
|
|
decoder *psn.Decoder
|
|
logger *slog.Logger
|
|
cancel context.CancelFunc
|
|
}
|
|
|
|
func init() {
|
|
RegisterModule(ModuleRegistration{
|
|
Type: "psn.client",
|
|
New: func(config config.ModuleConfig) (Module, error) {
|
|
|
|
return &PSNClient{config: config, decoder: psn.NewDecoder(), logger: CreateLogger(config)}, nil
|
|
},
|
|
})
|
|
}
|
|
|
|
func (pc *PSNClient) Id() string {
|
|
return pc.config.Id
|
|
}
|
|
|
|
func (pc *PSNClient) Type() string {
|
|
return pc.config.Type
|
|
}
|
|
|
|
func (pc *PSNClient) Start(ctx context.Context) error {
|
|
pc.logger.Debug("running")
|
|
router, ok := ctx.Value(common.RouterContextKey).(route.RouteIO)
|
|
|
|
if !ok {
|
|
return errors.New("psn.client unable to get router from context")
|
|
}
|
|
pc.router = router
|
|
moduleContext, cancel := context.WithCancel(ctx)
|
|
pc.ctx = moduleContext
|
|
pc.cancel = cancel
|
|
|
|
addr, err := net.ResolveUDPAddr("udp", "236.10.10.10:56565")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
client, err := net.ListenMulticastUDP("udp", nil, addr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer client.Close()
|
|
|
|
pc.conn = client
|
|
|
|
buffer := make([]byte, 2048)
|
|
for {
|
|
select {
|
|
case <-pc.ctx.Done():
|
|
// TODO(jwetzell): cleanup?
|
|
pc.logger.Debug("done")
|
|
return nil
|
|
default:
|
|
pc.conn.SetDeadline(time.Now().Add(time.Millisecond * 200))
|
|
|
|
numBytes, _, err := pc.conn.ReadFromUDP(buffer)
|
|
if err != nil {
|
|
//NOTE(jwetzell) we hit deadline
|
|
if opErr, ok := err.(*net.OpError); ok && opErr.Timeout() {
|
|
continue
|
|
}
|
|
return err
|
|
}
|
|
|
|
if numBytes > 0 {
|
|
message := buffer[:numBytes]
|
|
err := pc.decoder.Decode(message)
|
|
if err != nil {
|
|
pc.logger.Error("problem decoding psn traffic", "error", err)
|
|
}
|
|
|
|
if pc.router != nil {
|
|
// TODO(jwetzell): better input handling
|
|
for _, tracker := range pc.decoder.Trackers {
|
|
pc.router.HandleInput(pc.ctx, pc.Id(), tracker)
|
|
}
|
|
} else {
|
|
pc.logger.Error("has no router")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (pc *PSNClient) Output(ctx context.Context, payload any) error {
|
|
return fmt.Errorf("psn.client output is not implemented")
|
|
}
|
|
|
|
func (pc *PSNClient) Stop() {
|
|
pc.cancel()
|
|
}
|