import { createConsola } from 'consola'
import type { ConsolaInstance } from 'consola'

export type AppLogLevel = 'silent' | 'error' | 'warn' | 'info' | 'debug' | 'trace' | 'verbose' | 'log'

export function createLogger(options: { level?: string; tag?: string; fancy?: boolean } = {}): ConsolaInstance {
  const level = resolveConsolaLevel(options.level)

  const logger = createConsola({
    level
  })

  return options.tag ? logger.withTag(options.tag) : logger
}

export function resolveConsolaLevel(level?: string): number {
  const normalized = (level ?? '').toString().trim().toLowerCase()

  // Consola levels (from docs):
  // 0: Fatal and Error
  // 1: Warnings
  // 2: Normal logs
  // 3: Informational logs
  // 4: Debug logs
  // 5: Trace logs
  // -999: Silent
  // +999: Verbose logs
  switch (normalized as AppLogLevel) {
    case 'silent':
      return -999
    case 'error':
      return 0
    case 'warn':
      return 1
    case 'log':
      return 2
    case 'info':
      return 3
    case 'debug':
      return 4
    case 'trace':
      return 5
    case 'verbose':
      return 999
    default:
      return 3
  }
}