import std/os
import ../src/namespaced_logging

when not defined(multithreaded):
  {.error: "Compile this fixture with -d:multithreaded to exercise writer threads".}

proc formatLine(msg: LogMessage): string {.gcsafe.} = msg.msg & "\n"

proc main() =
  doAssert paramCount() == 2
  var service = initLogService()
  case paramStr(1)
  of "file":
    service.addAppender(initFileLogAppender(paramStr(2)))
  of "console":
    # Keep stdout open through the library's exit hook. Redirecting it to a
    # file also prevents a full parent/child pipe from blocking the writer.
    doAssert open(stdout, paramStr(2), fmWrite)
    service.addAppender(initConsoleLogAppender(formatter = formatLine))
  else:
    raise newException(ValueError, "unknown writer destination")

  let local = service.threadLocalRef()
  let logger = local.getLogger("shutdown")
  for i in 0 ..< 10_000:
    logger.info("message " & $i)
  # No sleep or explicit flush: normal exit must preserve accepted messages.

main()