#!/bin/bash
# setup-gitignore.sh - Create/update .gitignore for OpenTimestamp proofs
# Usage: setup-gitignore.sh [repository-path]

set -e

REPO_PATH="${1:-.}"

cd "$REPO_PATH"

# Verify we're in a git repository
if ! git rev-parse --git-dir > /dev/null 2>&1; then
    echo "Error: not a git repository" >&2
    exit 1
fi

GITIGNORE=".gitignore"

# Create .gitignore if it doesn't exist
if [ ! -f "$GITIGNORE" ]; then
    echo "# OpenTimestamp proofs cache (exclude from version control)" > "$GITIGNORE"
    echo ".ots/.attestation-cache" >> "$GITIGNORE"
    echo ""
    echo "Created $GITIGNORE with OpenTimestamp cache exclusion"
else
    # Check if already has the cache exclusion
    if grep -q ".ots/.attestation-cache" "$GITIGNORE"; then
        echo "$GITIGNORE already excludes .ots/.attestation-cache"
    else
        echo "" >> "$GITIGNORE"
        echo "# OpenTimestamp proofs cache (exclude from version control)" >> "$GITIGNORE"
        echo ".ots/.attestation-cache" >> "$GITIGNORE"
        echo "Added .ots/.attestation-cache to $GITIGNORE"
    fi
fi

echo ""
echo "Next steps:"
echo "1. Review and commit your .gitignore"
echo "2. Add .ots/ directory to track proofs: git add .ots/"
echo "3. Commit proofs: git commit -m 'Add OpenTimestamp proofs'"