package app

import (
	"os/exec"
	"testing"
)

func TestScpArgs(t *testing.T) {
	args := scpArgs([]string{"/out/a.mp3", "/out/b.mp3", "/out/playlist.m3u8"},
		"root@vps:/opt/icecast/web/ai-radio/", "")
	joined := ""
	for _, a := range args {
		joined += a + " "
	}
	for _, want := range []string{
		"-o StrictHostKeyChecking=accept-new",
		"/out/a.mp3",
		"/out/b.mp3",
		"/out/playlist.m3u8",
		"root@vps:/opt/icecast/web/ai-radio/",
	} {
		if !contains(joined, want) {
			t.Fatalf("scp args missing %q: %s", want, joined)
		}
	}
	// playlist must be last so links resolve before the list appears
	last := args[len(args)-1]
	if last != "root@vps:/opt/icecast/web/ai-radio/" {
		t.Fatal("target must be last arg")
	}
	// playlist before target, after mp3s
	pi := -1
	for i, a := range args {
		if a == "/out/playlist.m3u8" {
			pi = i
		}
	}
	if pi < 2 {
		t.Fatal("playlist should come after the mp3s")
	}
}

func TestScpArgsWithKey(t *testing.T) {
	args := scpArgs([]string{"/x.mp3"}, "u@h:/d/", "/keys/id")
	found := false
	for i, a := range args {
		if a == "-i" && i+1 < len(args) && args[i+1] == "/keys/id" {
			found = true
		}
	}
	if !found {
		t.Fatalf("identity file not passed: %v", args)
	}
}

func TestScpEmptyNoop(t *testing.T) {
	if err := Ship(nil, "u@h:/d/", ""); err != nil {
		t.Fatalf("empty ship should be a no-op, got %v", err)
	}
}

var _ = exec.Command // keep import if unused in future edits