#!/usr/bin/env bash
# reset_demo_repo.sh
#
# Clones the gitaec.org demo repo into a temp directory, strips unwanted IFC
# files, resets OPERATIONS.md, squashes all history into a single "init" commit,
# and force-pushes to origin.
#
# Files kept in ifc/:   duplex.ifc  office.ifc
# History:              replaced with a single initial commit

set -euo pipefail

DEMO_REPO="https://gitaec.org/rvba/ifc-commit-demo.git"

echo "⚠️  WARNING: This will erase ALL git history of the demo repo."
echo "   Repo : $DEMO_REPO"
echo "   Kept : ifc/duplex.ifc  ifc/office.ifc  yaml/"
echo "   Removed: OPERATIONS.md (if present)"
echo ""
read -r -p "Type 'yes' to proceed: " CONFIRM
if [ "$CONFIRM" != "yes" ]; then
    echo "Aborted."
    exit 1
fi
echo ""
WORK_DIR="$(mktemp -d)"

cleanup() {
    rm -rf "$WORK_DIR"
}
trap cleanup EXIT

echo "==> Cloning demo repo into $WORK_DIR"
git clone "$DEMO_REPO" "$WORK_DIR/demo"
cd "$WORK_DIR/demo"

echo "==> Removing unwanted IFC files from ifc/"
if [ -d ifc ]; then
    find ifc -maxdepth 1 -name "*.ifc" \
        ! -name "duplex.ifc" \
        ! -name "office.ifc" \
        -delete
    echo "    Kept: $(ls ifc/*.ifc 2>/dev/null | xargs -n1 basename | tr '\n' ' ')"
else
    echo "    WARNING: ifc/ directory not found — skipping IFC cleanup"
fi

echo "==> Keeping yaml/ directory intact"
if [ ! -d yaml ]; then
    echo "    WARNING: yaml/ directory not found"
fi

echo "==> Removing OPERATIONS.md and ifc/history.json"
rm -f OPERATIONS.md ifc/history.json

echo "==> Switching to orphan branch to drop all history"
git checkout --orphan fresh-start

echo "==> Staging all remaining files"
git add -A

echo "==> Creating single initial commit"
git commit -m "init: fresh demo repo"

echo "==> Force-pushing to origin as main"
git push --force origin fresh-start:main

echo ""
echo "Done. Demo repo history has been reset."
echo "Verify at: https://gitaec.org/rvba/ifc-commit-demo"