// utils/logging.ts

// Helper to format date as yyyymmdd
function getDateString() {
  const now = new Date();
  const yyyy = now.getFullYear();
  const mm = String(now.getMonth() + 1).padStart(2, "0");
  const dd = String(now.getDate()).padStart(2, "0");
  return `${yyyy}${mm}${dd}`;
}

// Ensure the log directory exists using Deno.stat
async function ensureLogDir() {
  const logDir = "./log";
  try {
    const stat = await Deno.stat(logDir);
    if (!stat.isDirectory) {
      throw new Error(`${logDir} exists but is not a directory`);
    }
  } catch (err) {
    if (err instanceof Deno.errors.NotFound) {
      await Deno.mkdir(logDir, { recursive: true });
    } else {
      throw err;
    }
  }
}

// Write a log entry
export async function writeAudioLog(entry: string) {
  await ensureLogDir();
  const dateStr = getDateString();
  const logFile = `./log/audio-${dateStr}.log`;
  const logEntry = `[${new Date().toISOString()}] ${entry}\n`;
  await Deno.writeTextFile(logFile, logEntry, { append: true });
}

// Write a log entry
export async function writeImageLog(entry: string) {
  await ensureLogDir();
  const dateStr = getDateString();
  const logFile = `./log/image-${dateStr}.log`;
  const logEntry = `[${new Date().toISOString()}] ${entry}\n`;
  await Deno.writeTextFile(logFile, logEntry, { append: true });
}

export async function logBlobFetch(entry: string) {
  await ensureLogDir();
  const dateStr = getDateString();
  const logFile = `./log/blob-${dateStr}.log`;
  const logEntry = `[${new Date().toISOString()}] ${entry}\n`;
  await Deno.writeTextFile(logFile, logEntry, { append: true });
}