#!/usr/bin/env bats
# tests/test_logs.bats — Tests for 'fs5 logs' command (US5)

bats_require_minimum_version 1.5.0

SCRIPT="${BATS_TEST_DIRNAME}/../fs5"

setup() {
  export DEVICE_SERIAL="RD51QE202392"
  export LOG_FILE="/tmp/fs5-test-$$.log"
  LOG_OUTPUT="/tmp/fs5-logcap-$$.txt"
}

teardown() {
  rm -f "${LOG_FILE}" "${LOG_OUTPUT}"
}

@test "logs --lines: outputs exactly N lines" {
  run "${SCRIPT}" logs --lines 5
  [ "${status}" -eq 0 ]
  local line_count
  line_count=$(echo "${output}" | wc -l)
  [ "${line_count}" -ge 1 ]
  [ "${line_count}" -le 10 ]
}

@test "logs --lines: exits after printing lines (non-streaming)" {
  # Should complete within 15 seconds (not hang)
  run timeout 15 "${SCRIPT}" logs --lines 3
  [ "${status}" -eq 0 ]
}

@test "logs --output: writes to file" {
  run "${SCRIPT}" logs --lines 5 --output "${LOG_OUTPUT}"
  [ "${status}" -eq 0 ]
  [ -f "${LOG_OUTPUT}" ]
  [ -s "${LOG_OUTPUT}" ]
}

@test "logs --filter: filters by tag" {
  run "${SCRIPT}" logs --lines 20 --filter "System"
  [ "${status}" -eq 0 ]
  # Output may be empty if tag not present, but must not error
}

@test "logs: --help shows usage" {
  run "${SCRIPT}" logs --help
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"logs"* ]]
}

@test "logs: exits with code 2 when device not connected" {
  DEVICE_SERIAL="INVALID_SERIAL_000" run "${SCRIPT}" logs --lines 1
  [ "${status}" -eq 2 ]
}