#!/usr/bin/env bash
set -euo pipefail

PATCH_COMMIT="a701059"

repo_root="$(git rev-parse --show-toplevel)"
cd "$repo_root"

if [[ -n "$(git status --porcelain)" ]]; then
    echo "Refusing to edit a dirty working tree." >&2
    exit 1
fi

if ! git cat-file -e "${PATCH_COMMIT}^{commit}" 2>/dev/null; then
    git fetch origin
fi

if ! git merge-base --is-ancestor "$PATCH_COMMIT" HEAD; then
    git cherry-pick "$PATCH_COMMIT"
else
    echo "XIAO sensor-node patch is already applied."
fi

if [[ ! -f .venv/bin/activate ]]; then
    echo "Missing .venv/bin/activate; create the project virtual environment first." >&2
    exit 1
fi

source .venv/bin/activate
python run_tests.py

git add -A
if ! git diff --cached --quiet; then
    git commit -m "firmware: apply XIAO C6 sensor node patch"
fi

branch="$(git branch --show-current)"
if [[ -z "$branch" ]]; then
    echo "Cannot push from detached HEAD." >&2
    exit 1
fi
git push origin "$branch"