package logger

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"
)

func TestRedactURLToken(t *testing.T) {
	raw := "http://ntunnel.example.com/?token=secret-token-value"
	got := RedactURL(raw)
	if strings.Contains(got, "secret-token-value") {
		t.Fatalf("token leaked: %s", got)
	}
}

func TestRedactTextPasswordAndToken(t *testing.T) {
	in := `login failed password=hunter2 token=abc123 url=https://x.example/?token=zzz`
	got := RedactText(in)
	for _, secret := range []string{"hunter2", "abc123", "zzz"} {
		if strings.Contains(got, secret) {
			t.Fatalf("secret %q leaked in %q", secret, got)
		}
	}
}

func TestParseLevel(t *testing.T) {
	if ParseLevel("DEBUG") != LevelDebug {
		t.Fatal("debug")
	}
	if ParseLevel("nope") != LevelInfo {
		t.Fatal("default")
	}
}

func TestDatedPath(t *testing.T) {
	day := time.Date(2026, 9, 21, 15, 0, 0, 0, time.Local)
	got := DatedPath(filepath.Join("logs", "tunnel.log"), day)
	want := filepath.Join("logs", "tunnel-2026-09-21.log")
	if got != want {
		t.Fatalf("got %s want %s", got, want)
	}
}

func TestDailyRotateAndPurge(t *testing.T) {
	dir := t.TempDir()
	base := filepath.Join(dir, "tunnel.log")
	now := time.Date(2026, 9, 21, 10, 0, 0, 0, time.Local)

	keepDay := now.AddDate(0, 0, -3)
	dropDay := now.AddDate(0, 0, -8)
	keepPath := DatedPath(base, keepDay)
	dropPath := DatedPath(base, dropDay)
	if err := os.WriteFile(keepPath, []byte("keep\n"), 0o640); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(dropPath, []byte("drop\n"), 0o640); err != nil {
		t.Fatal(err)
	}

	l, err := New(base, "info", false)
	if err != nil {
		t.Fatal(err)
	}
	defer l.Close()

	l.mu.Lock()
	if err := l.rotateLocked(now); err != nil {
		l.mu.Unlock()
		t.Fatal(err)
	}
	l.mu.Unlock()
	l.Info("hello")

	today := DatedPath(base, now)
	if _, err := os.Stat(today); err != nil {
		t.Fatalf("today log missing: %v", err)
	}
	if _, err := os.Stat(keepPath); err != nil {
		t.Fatalf("recent log should remain: %v", err)
	}
	if _, err := os.Stat(dropPath); !os.IsNotExist(err) {
		t.Fatalf("old log should be purged, err=%v", err)
	}
}