feat: group api

internal/channel/factory.go

@@ -3,16 +3,40 @@ package channel
 import (
 	"fmt"
 	"gpt-load/internal/models"
+	"net/http"
+	"net/url"
 )
 
 // GetChannel returns a channel proxy based on the group's channel type.
 func GetChannel(group *models.Group) (ChannelProxy, error) {
 	switch group.ChannelType {
 	case "openai":
-		return NewOpenAIChannel(group)
+		return NewOpenAIChannel(group.Upstreams)
 	case "gemini":
-		return NewGeminiChannel(group)
+		return NewGeminiChannel(group.Upstreams)
 	default:
 		return nil, fmt.Errorf("unsupported channel type: %s", group.ChannelType)
 	}
-}
+}
+
+// newBaseChannelWithUpstreams is a helper function to create and configure a BaseChannel.
+func newBaseChannelWithUpstreams(name string, upstreams []string) (BaseChannel, error) {
+	if len(upstreams) == 0 {
+		return BaseChannel{}, fmt.Errorf("at least one upstream is required for %s channel", name)
+	}
+
+	var upstreamURLs []*url.URL
+	for _, us := range upstreams {
+		u, err := url.Parse(us)
+		if err != nil {
+			return BaseChannel{}, fmt.Errorf("failed to parse upstream url '%s' for %s channel: %w", us, name, err)
+		}
+		upstreamURLs = append(upstreamURLs, u)
+	}
+
+	return BaseChannel{
+		Name:       name,
+		Upstreams:  upstreamURLs,
+		HTTPClient: &http.Client{},
+	}, nil
+}