#!/usr/bin/env bash
# Pre-commit hook: checks format, lint, and spelling on staged Go files.
# Install with: make install-hooks
set -euo pipefail

# Only run if Go files are staged.
STAGED_GO=$(git diff --cached --name-only --diff-filter=ACM -- '*.go' || true)
if [ -z "$STAGED_GO" ]; then
  exit 0
fi

REPO_ROOT=$(git rev-parse --show-toplevel)
LOCALBIN="${REPO_ROOT}/operator/bin"
GOLANGCI_LINT="${LOCALBIN}/golangci-lint"

printf '==> Checking format (go fmt)...\n'
UNFMT=$(gofmt -l $STAGED_GO)
if [ -n "$UNFMT" ]; then
  printf 'ERROR: The following files are not formatted:\n'
  printf '  %s\n' $UNFMT
  printf 'Run "go fmt ./..." to fix.\n'
  exit 1
fi

printf '==> Running go vet...\n'
go vet ./...

printf '==> Running golangci-lint (lint + spelling)...\n'
if [ ! -x "$GOLANGCI_LINT" ]; then
  printf 'golangci-lint not found. Run "make golangci-lint" first.\n'
  exit 1
fi
"$GOLANGCI_LINT" run --timeout 5m

printf 'All pre-commit checks passed.\n'