install.sh

#!/usr/bin/env bash
# install.sh — Register agent-timeout.sh as a Claude Code SessionStart hook
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
HOOK_SCRIPT="$SCRIPT_DIR/agent-timeout.sh"
SETTINGS_DIR="$HOME/.claude"
SETTINGS_FILE="$SETTINGS_DIR/settings.json"

if ! command -v jq &>/dev/null; then
    echo "Error: jq is required. Install with: brew install jq (macOS) or apt install jq (Linux)" >&2
    exit 1
fi

chmod +x "$HOOK_SCRIPT"

mkdir -p "$SETTINGS_DIR"
if [[ ! -f "$SETTINGS_FILE" ]]; then
    echo '{}' > "$SETTINGS_FILE"
fi

# Bail out if hook is already present
if jq -e '.hooks.SessionStart[]? | .hooks[]? | select(.command | contains("agent-timeout"))' \
       "$SETTINGS_FILE" >/dev/null 2>&1; then
    echo "agent-timeout hook is already installed."
    exit 0
fi

# Append the SessionStart hook entry
jq --arg cmd "bash $HOOK_SCRIPT" '
  .hooks //= {} |
  .hooks.SessionStart //= [] |
  .hooks.SessionStart += [{
    "matcher": "",
    "hooks": [{
      "type": "command",
      "command": $cmd
    }]
  }]
' "$SETTINGS_FILE" > "${SETTINGS_FILE}.tmp" && mv "${SETTINGS_FILE}.tmp" "$SETTINGS_FILE"

echo "Installed agent-timeout hook into $SETTINGS_FILE"
echo ""
echo "Defaults:"
echo "  AGENT_TIMEOUT=300   (seconds before SIGTERM)"
echo "  POLL_INTERVAL=10    (seconds between checks)"
echo ""
echo "Override by exporting these variables in your shell profile."