#!/bin/sh

STAGED_JS_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".jsx\{0,1\}$")
STAGED_SOL_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".sol$")
PASS=true

# Usage: validate <files> <command> <name>
validate() {
  for FILE in $1
  do
    $2 "$FILE"
    if [[ "$?" == 0 ]]; then
      printf "\t\033[32m$3 Passed: $FILE\033[0m\n"
    else
      printf "\t\033[41m$3 Failed: $FILE\033[0m\n"
      PASS=false
    fi
  done
}

if [[ ("$STAGED_JS_FILES" = "") && ("$STAGED_SOL_FILES" = "") ]]; then
  exit 0
fi

printf "\nValidating Javascript:\n"
validate "$STAGED_JS_FILES" "npx eslint" "ESLint"
validate "$STAGED_JS_FILES" "npx prettier --check" "Prettier"
printf "\nJavascript validation completed!\n"

printf "\nValidating Solidity:\n"
validate "$STAGED_SOL_FILES" "npx solhint" "Solhint"
validate "$STAGED_SOL_FILES" "npx solium --file" "Solium"
validate "$STAGED_SOL_FILES" "npx prettier --check" "Prettier"
printf "\nSolidity validation completed!\n"

if ! $PASS; then
  printf "\033[41mCOMMIT FAILED:\033[0m Your commit contains files that should pass Linting but do not. Please fix the errors and try again.\n"
  exit 1
else
  printf "\033[42mCOMMIT SUCCEEDED\033[0m\n"
fi

exit $?