#!/bin/bash

readonly reset=$(tput sgr0)
readonly red=$(tput bold; tput setaf 1)
readonly green=$(tput bold; tput setaf 2)

exit_code=0

echo -ne "Checking that it builds... "
if ! OUT=$(make 2>&1); then
  echo
  echo "${red}${OUT}"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

# Check if changes to Godeps are reproducible...
files=($(git diff --cached --name-only --diff-filter ACM | grep "Godeps"))
if [[ "${#files[@]}" -ne 0 ]]; then
  echo -ne "Check if changes to Godeps are reproducible (this is pretty slow)..."
  if ! OUT=$("hack/verify-godeps.sh" 2>&1); then
    echo
    echo "${red}${OUT}"
    exit_code=1
  else
    echo "${green}OK"
  fi
  echo "${reset}"

  echo -ne "Check if Godep licenses are up to date..."
  if ! OUT=$("hack/verify-godep-licenses.sh" 2>&1); then
    echo
    echo "${red}${OUT}"
    exit_code=1
  else
    echo "${green}OK"
  fi
  echo "${reset}"
fi

echo -ne "Checking for files that need gofmt... "
files_need_gofmt=()
files=($(git diff --cached --name-only --diff-filter ACM | grep "\.go" | grep -v -e "^third_party" -e "^vendor"))
for file in "${files[@]}"; do
  # Check for files that fail gofmt.
  diff="$(git show ":${file}" | gofmt -s -d 2>&1)"
  if [[ -n "$diff" ]]; then
    files_need_gofmt+=("${file}")
  fi
done

if [[ "${#files_need_gofmt[@]}" -ne 0 ]]; then
  echo "${red}ERROR!"
  echo "Some files have not been gofmt'd. To fix these errors, "
  echo "copy and paste the following:"
  echo "  gofmt -s -w ${files_need_gofmt[@]}"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for package aliases... "
if ! hack/verify-pkg-names.sh > /dev/null; then
  echo "${red}ERROR!"
  echo "Some package aliases break go conventions. To fix these errors, "
  echo "do not use capitalized or underlined characters in pkg aliases. "
  echo "Refer to https://blog.golang.org/package-names for more info."
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for files that need boilerplate... "
files=($(git diff --cached --name-only --diff-filter ACM))
# We always make sure there is one file in the files list. Some tools check
# the whole repo if they get no files, so in fact, this is much faster on
# git commit --amend
if [[ ${#files[@]} -eq 0 ]]; then
  files+=("README.md")
fi
out=($(hack/boilerplate/boilerplate.py "${files[@]}"))
if [[ "${#out}" -ne 0 ]]; then
  echo "${red}ERROR!"
  echo "Some files are missing the required boilerplate header"
  echo "from hack/boilerplate/boilerplate.*.txt:"
  for f in "${out[@]}"; do
    echo "  ${f}"
  done
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for problems with flag names... "
invalid_flag_lines=$(hack/verify-flags-underscore.py "${files[@]}")
if [[ "${invalid_flag_lines:-}" != "" ]]; then
  echo "${red}ERROR!"
  echo "There appear to be problems with the following:"
  for line in "${invalid_flag_lines[@]}"; do
    echo "  ${line}"
  done
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for API descriptions... "
files_need_description=()
# Check API schema definitions for field descriptions
for file in $(git diff --cached --name-only --diff-filter ACM | egrep "pkg/api/v.[^/]*/types\.go" | grep -v "third_party"); do
  # Check for files with fields without description tags
  descriptionless=$(hack/verify-description.sh "${file}" > /dev/null; echo $?)
  if [[ "$descriptionless" -ne "0" ]]; then
    files_need_description+=("${file}")
  fi
done

if [[ "${#files_need_description[@]}" -ne 0 ]]; then
  echo "${red}ERROR!"
  echo "Some API files are missing the required field descriptions."
  echo "Add description tags to all non-inline fields in the following files:"
  for file in "${files_need_description[@]}"; do
    echo "  ${file}"
  done
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for swagger type documentation that need updating... "
if ! hack/verify-generated-swagger-docs.sh > /dev/null; then
  echo "${red}ERROR!"
  echo "Swagger type documentation needs to be updated."
  echo "To regenerate the spec, run:"
  echo "  hack/update-generated-swagger-docs.sh"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for swagger spec that need updating... "
if ! hack/verify-swagger-spec.sh > /dev/null; then
  echo "${red}ERROR!"
  echo "Swagger spec needs to be updated."
  echo "To regenerate the spec, run:"
  echo "  hack/update-swagger-spec.sh"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for openapi spec that need updating... "
if ! hack/verify-openapi-spec.sh > /dev/null; then
  echo "${red}ERROR!"
  echo "Openapi spec needs to be updated."
  echo "To regenerate the spec, run:"
  echo "  hack/update-openapi-spec.sh"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

echo -ne "Checking for federation openapi spec that need updating... "
if ! hack/verify-federation-openapi-spec.sh > /dev/null; then
  echo "${red}ERROR!"
  echo "Federation OpenAPI spec needs to be updated."
  echo "To regenerate the spec, run:"
  echo "  hack/update-federation-openapi-spec.sh"
  exit_code=1
else
  echo "${green}OK"
fi
echo "${reset}"

if [[ "${exit_code}" != 0 ]]; then
  echo "${red}Aborting commit${reset}"
fi
exit ${exit_code}

# ex: ts=2 sw=2 et filetype=sh