#!/usr/bin/env bats
# tests/test_transfer.bats — Tests for 'fs5 push/pull' commands (US2)

bats_require_minimum_version 1.5.0

SCRIPT="${BATS_TEST_DIRNAME}/../fs5"
DEVICE_PATH="/sdcard/fs5-test"

setup() {
  export DEVICE_SERIAL="RD51QE202392"
  export LOG_FILE="/tmp/fs5-test-$$.log"
  # Create a temp local file for testing
  TEST_FILE=$(mktemp /tmp/fs5-push-test-XXXXXX.txt)
  echo "fs5-test-content-$$" > "${TEST_FILE}"
  PULL_DEST="/tmp/fs5-pulled-$$.txt"
}

teardown() {
  rm -f "${TEST_FILE}" "${PULL_DEST}" "${LOG_FILE}"
  # Clean up device test file
  adb -s "${DEVICE_SERIAL}" shell "rm -f '${DEVICE_PATH}/$(basename "${TEST_FILE}")'" 2>/dev/null || true
}

@test "push: transfers file to device successfully" {
  run "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")"
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"Pushed"* ]]
}

@test "push: logs the operation to LOG_FILE" {
  run "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  [ "${status}" -eq 0 ]
  [ -f "${LOG_FILE}" ]
  grep -q "PUSH" "${LOG_FILE}"
}

@test "push: skips if file exists without --force" {
  # First push
  "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  # Second push without --force should warn, not fail
  run "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")"
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"--force"* ]] || [[ "${output}" == *"exists"* ]]
}

@test "push: overwrites with --force flag" {
  "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  run "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"Pushed"* ]]
}

@test "push: fails with exit code 1 when source file missing" {
  run "${SCRIPT}" push "/nonexistent/file.txt" "${DEVICE_PATH}/file.txt"
  [ "${status}" -eq 1 ]
  [[ "${output}" == *"not found"* ]]
}

@test "pull: downloads file from device successfully" {
  # Push first so we have something to pull
  "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  run "${SCRIPT}" pull "${DEVICE_PATH}/$(basename "${TEST_FILE}")" "${PULL_DEST}"
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"Pulled"* ]]
  [ -f "${PULL_DEST}" ]
}

@test "pull: pulled file matches original" {
  "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  "${SCRIPT}" pull "${DEVICE_PATH}/$(basename "${TEST_FILE}")" "${PULL_DEST}" --force
  run diff "${TEST_FILE}" "${PULL_DEST}"
  [ "${status}" -eq 0 ]
}

@test "pull: skips if local file exists without --force" {
  "${SCRIPT}" push "${TEST_FILE}" "${DEVICE_PATH}/$(basename "${TEST_FILE}")" --force
  touch "${PULL_DEST}"
  run "${SCRIPT}" pull "${DEVICE_PATH}/$(basename "${TEST_FILE}")" "${PULL_DEST}"
  [ "${status}" -eq 0 ]
  [[ "${output}" == *"--force"* ]] || [[ "${output}" == *"exists"* ]]
}

@test "pull: fails with exit code 1 when device file missing" {
  run "${SCRIPT}" pull "${DEVICE_PATH}/nonexistent-file-xyz.txt" "${PULL_DEST}"
  [ "${status}" -eq 1 ]
  [[ "${output}" == *"not found"* ]]
}