#!/usr/bin/env bash
#
# neuron-dev-setup / uninstall.sh
# Tears down the CORE dev stack this installer created. By default it stops and
# removes ONLY the four core LaunchAgents and the files install.sh laid down.
# It NEVER deletes your engram data unless you pass --purge-data.
#
#   ./uninstall.sh                 # stop + remove core LaunchAgents and wrapper script
#   ./uninstall.sh --purge-data    # ALSO delete ~/.neuron/engram (destroys the brain!)
#   ./uninstall.sh --keep-claude   # leave ~/.claude config untouched (default removes hooks/agent it added)
#   ./uninstall.sh --dry-run
# ─────────────────────────────────────────────────────────────────────────────
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
if [ -f "${SCRIPT_DIR}/config.env" ]; then source "${SCRIPT_DIR}/config.env"
elif [ -f "${SCRIPT_DIR}/config.env.example" ]; then source "${SCRIPT_DIR}/config.env.example"; fi
: "${NEURON_HOME:=${HOME}/.neuron}"
: "${ENGRAM_DATA_DIR:=${NEURON_HOME}/engram}"

DRY_RUN=0; PURGE_DATA=0; KEEP_CLAUDE=0
for a in "$@"; do case "$a" in
  --dry-run) DRY_RUN=1 ;; --purge-data) PURGE_DATA=1 ;; --keep-claude) KEEP_CLAUDE=1 ;;
  --help|-h) sed -n '2,16p' "${BASH_SOURCE[0]}" | sed 's/^# \{0,1\}//'; exit 0 ;;
  *) echo "unknown flag: $a" >&2; exit 2 ;;
esac; done
run() { if [ "$DRY_RUN" = 1 ]; then echo "[dry-run] $*"; else eval "$*"; fi; }

LAUNCHAGENTS="${HOME}/Library/LaunchAgents"
CORE_AGENTS=(ai.neuron.mcp-proxy ai.neuron.mcp-wrapper ai.neuron.soul ai.neuron.engram)

echo "Stopping and removing core LaunchAgents…"
for label in "${CORE_AGENTS[@]}"; do
  run "launchctl bootout gui/$(id -u)/${label} 2>/dev/null || true"
  run "rm -f \"${LAUNCHAGENTS}/${label}.plist\""
  echo "  removed ${label}"
done

echo "Removing generated ~/.neuron/bin/soul-wrapper.sh…"
run "rm -f \"${NEURON_HOME}/bin/soul-wrapper.sh\""

if [ "$KEEP_CLAUDE" = 0 ]; then
  echo "Removing Claude config this installer added…"
  run "rm -f \"${HOME}/.claude/hooks/neuron-self-load.sh\" \"${HOME}/.claude/hooks/neuron-agent-preamble.sh\" \"${HOME}/.claude/hooks/pre-compact.sh\""
  run "rm -f \"${HOME}/.claude/mcp.json.neuron\" \"${HOME}/.claude/settings.core.json\""
  echo "  (left ~/.claude/settings.json and ~/.claude/mcp.json in place — edit by hand if you merged them)"
fi

if [ "$PURGE_DATA" = 1 ]; then
  echo "⚠️  --purge-data: deleting engram memory at ${ENGRAM_DATA_DIR}"
  run "rm -rf \"${ENGRAM_DATA_DIR}\""
else
  echo "Left engram data intact at ${ENGRAM_DATA_DIR} (pass --purge-data to delete)."
fi

echo "Done. Source repos under your DEV_ROOT were left untouched."