package isphere

import (
	"os"
	"path/filepath"
	"reflect"
	"testing"
)

func TestLoadEncryptedPacketLogSourceFromFileReadsNonEmptyLines(t *testing.T) {
	path := writePacketLogFileForTest(t, "\n  encrypted-line-1  \r\n\r\n\tencrypted-line-2\n")

	got, err := LoadEncryptedPacketLogSourceFromFile(path)
	if err != nil {
		t.Fatalf("LoadEncryptedPacketLogSourceFromFile returned error: %v", err)
	}
	want := EncryptedPacketLogSource{Lines: []string{"encrypted-line-1", "encrypted-line-2"}}
	if !reflect.DeepEqual(got, want) {
		t.Fatalf("source = %#v, want %#v", got, want)
	}
}

func TestLoadEncryptedPacketLogSourceFromDirectoryReadsSortedLogFiles(t *testing.T) {
	root := t.TempDir()
	writePacketLogFileAtPathForTest(t, root+"\\b.log", "\n  line-b1  \n")
	writePacketLogFileAtPathForTest(t, root+"\\a.log", "line-a1\n\nline-a2\n")
	writePacketLogFileAtPathForTest(t, root+"\\nested\\c.txt", "line-c1\n")
	writePacketLogFileAtPathForTest(t, root+"\\ignored.tmp", "ignored\n")

	got, err := LoadEncryptedPacketLogSourceFromDirectory(root)
	if err != nil {
		t.Fatalf("LoadEncryptedPacketLogSourceFromDirectory returned error: %v", err)
	}
	want := EncryptedPacketLogSource{Lines: []string{"line-a1", "line-a2", "line-b1", "line-c1"}}
	if !reflect.DeepEqual(got, want) {
		t.Fatalf("source = %#v, want %#v", got, want)
	}
}

func writePacketLogFileForTest(t *testing.T, content string) string {
	t.Helper()
	path := t.TempDir() + "\\packet.log"
	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
		t.Fatalf("write test packet log: %v", err)
	}
	return path
}

func writePacketLogFileAtPathForTest(t *testing.T, path string, content string) {
	t.Helper()
	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
		t.Fatalf("create parent for %s: %v", path, err)
	}
	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
		t.Fatalf("write test packet log %s: %v", path, err)
	}
}