import { createRequire } from 'node:module'
import pino, { type Logger } from 'pino'

// Logger reads env directly so it can load in setup scripts that haven't
// populated required config values yet (telegram token etc.).
const LOG_LEVEL = process.env.LOG_LEVEL ?? 'info'
const IS_DEV = (process.env.NODE_ENV ?? 'development') !== 'production'

const base = {
  level: LOG_LEVEL,
  base: { pid: process.pid },
}

function hasPinoPretty(): boolean {
  try {
    createRequire(import.meta.url).resolve('pino-pretty')
    return true
  } catch {
    return false
  }
}

export const logger: Logger =
  IS_DEV && hasPinoPretty()
    ? pino({
        ...base,
        transport: {
          target: 'pino-pretty',
          options: { colorize: true, translateTime: 'SYS:HH:MM:ss.l', ignore: 'pid,hostname' },
        },
      })
    : pino(base)

export function childLogger(bindings: Record<string, unknown>): Logger {
  return logger.child(bindings)
}