package cli

import (
	"context"
	"net"
	"strings"
	"testing"
	"time"
)

// `llmgw server check` once ran a whole second server: words after server
// that name no subcommand are refused.
func TestServerTakesNoWordsItDoesNotKnow(t *testing.T) {
	cmd := newServerCmd()
	cmd.SetArgs([]string{"check", "--config", "/nonexistent"})
	cmd.SilenceUsage, cmd.SilenceErrors = true, true
	if err := cmd.Execute(); err == nil || !strings.Contains(err.Error(), "unknown command") {
		t.Errorf("err %v", err)
	}
}

// A second server whose port is taken stops at once, before the router or
// any control plane is built.
func TestAServerWhosePortIsTakenStopsFirst(t *testing.T) {
	taken, err := net.Listen("tcp", "127.0.0.1:0")
	if err != nil {
		t.Fatal(err)
	}
	defer taken.Close()
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	cmd := newServerCmd()
	cmd.SetArgs([]string{"--listen", taken.Addr().String(), "--admin-listen", "127.0.0.1:0",
		"--endpoint", "a=http://127.0.0.1:1=m"})
	cmd.SilenceUsage, cmd.SilenceErrors = true, true
	if err := cmd.ExecuteContext(ctx); err == nil || !strings.Contains(err.Error(), "listening on") {
		t.Errorf("err %v", err)
	}
}