package nethernet

import "github.com/pion/webrtc/v4"

// Credentials holds the configuration for ICE servers used for gathering local ICE candidates.

type Credentials struct {

ExpirationInSeconds int `json:"ExpirationInSeconds"`

ICEServers []ICEServer `json:"TurnAuthServers"`

}

// ICEServer represents a single ICE server configuration, including its authentication details

// and connection URLs. Each server requires a username and password for authentication.

type ICEServer struct {

Username string `json:"Username"`

Password string `json:"Password"`

URLs []string `json:"Urls"`

}

// gatherOptions transforms the given Credentials and gather policy into a

// [webrtc.ICEGatherOptions] for gathering local ICE candidates with

// [webrtc.ICEGatherer]. If the given credentials are nil or contain no ICE

// servers, only the gather policy is populated.

func gatherOptions(credentials *Credentials, policy webrtc.ICEGatherPolicy) webrtc.ICEGatherOptions {

opts := webrtc.ICEGatherOptions{ICEGatherPolicy: policy}

if credentials != nil && len(credentials.ICEServers) > 0 {

opts.ICEServers = make([]webrtc.ICEServer, len(credentials.ICEServers))

for i, server := range credentials.ICEServers {

opts.ICEServers[i] = webrtc.ICEServer{

Username: server.Username,

Credential: server.Password,

CredentialType: webrtc.ICECredentialTypePassword,

URLs: server.URLs,

}

}

}

return opts

}