#!/usr/bin/env bash
# Hook: exit-protocol (PreToolUse, matcher: .*)  — catch-all.
# Enforces the project's definition of "done": if WORKING.md has any unchecked
# task, inject context ordering the agent to finish them before responding.
# This prevents premature "Done" responses.
set -euo pipefail

# Required by the hook protocol: consume stdin.
cat >/dev/null

REPO_ROOT="${CRUSH_PROJECT_DIR:-$(pwd)}"
WORKING_FILE="$REPO_ROOT/WORKING.md"

if [ -f "$WORKING_FILE" ]; then
    UNCHECKED="$(grep -cF -- '- [ ]' "$WORKING_FILE" || true)"
    if [ "$UNCHECKED" -gt 0 ]; then
        TASKS_JSON="$(grep -F -- '- [ ]' "$WORKING_FILE" \
            | sed 's/\\/\\\\/g; s/"/\\"/g' \
            | awk -v ORS='\\n' '{print}' | sed 's/\\n$//')"
        printf '{"context": "STOP. WORKING.md has %s unfinished task(s). You cannot declare work done or respond to the user while these remain:\\n%s\\nFinish them now. Do not respond until all are checked. Then clear WORKING.md and commit."}\n' \
            "$UNCHECKED" "$TASKS_JSON"
        exit 0
    fi
fi

echo '{}'