#!/usr/bin/env bash
set -euo pipefail
LOG=/home/alex/openclaw2/logs/one-shot-install.log
mkdir -p "$(dirname "$LOG")"
exec > >(tee -a "$LOG") 2>&1

echo "ONE-SHOT INSTALL START: $(date -Iseconds)"

# 1) Backup config and credentials
BACKUP_DIR=/tmp/openclaw_backup_$(date +%s)
mkdir -p "$BACKUP_DIR"
cp -a /home/alex/openclaw2/.openclaw/openclaw.json "$BACKUP_DIR/" || true
cp -a /home/alex/openclaw2/credentials "$BACKUP_DIR/" 2>/dev/null || true
cp -a /home/alex/openclaw2/.openclaw/identity "$BACKUP_DIR/" 2>/dev/null || true
echo "Backups written to $BACKUP_DIR"

# 2) Install system packages (Debian/Ubuntu fallback)
if command -v apt >/dev/null 2>&1; then
  echo "Detected apt; installing packages"
  apt update
  apt install -y ripgrep jq sqlite3 curl gnupg software-properties-common
elif command -v pacman >/dev/null 2>&1; then
  echo "Detected pacman; installing packages"
  pacman -Syu --noconfirm ripgrep jq sqlite sqlite3 curl
elif command -v dnf >/dev/null 2>&1; then
  echo "Detected dnf; installing packages"
  dnf install -y ripgrep jq sqlite sqlite3 curl
else
  echo "No supported package manager found. Please install: ripgrep, jq, sqlite3, curl" >&2
fi

# 3) Ensure Node 18+ and pnpm
if ! command -v node >/dev/null 2>&1 || [ "$(node -v | sed 's/v//;s/\..*//')" -lt 18 ]; then
  echo "Installing Node 18 via NodeSource"
  curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
  apt install -y nodejs
fi

if ! command -v pnpm >/dev/null 2>&1; then
  echo "Installing pnpm via corepack/npm"
  if command -v corepack >/dev/null 2>&1; then
    corepack enable
    corepack prepare pnpm@latest --activate
  else
    npm install -g pnpm
  fi
fi

# 4) Install GitHub CLI if missing (deb-based)
if ! command -v gh >/dev/null 2>&1; then
  if command -v apt >/dev/null 2>&1; then
    echo "Installing GitHub CLI"
    curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg
    chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg
    echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" >/etc/apt/sources.list.d/github-cli.list
    apt update
    apt install -y gh
  fi
fi

# 5) Deploy suggested systemd unit (generated by helper script earlier)
if [ -f /home/alex/openclaw2/openclaw-gateway.service.suggested ]; then
  echo "Deploying suggested service unit"
  mv /home/alex/openclaw2/openclaw-gateway.service.suggested /etc/systemd/system/openclaw-gateway.service
  systemctl daemon-reload
  systemctl enable --now openclaw-gateway.service
  systemctl status openclaw-gateway.service --no-pager || true
else
  echo "No suggested service unit found; skipping service deploy"
fi

# 6) Build docs index
if command -v rg >/dev/null 2>&1; then
  echo "Building docs index"
  /home/alex/openclaw2/scripts/build-doc-index.sh || true
else
  echo "rg not found; skipping docs index"
fi

# 7) Run openclaw doctor report (non-destructive)
if command -v openclaw >/dev/null 2>&1; then
  echo "Running openclaw doctor --report"
  sudo -u alex openclaw doctor --report || true
else
  echo "openclaw CLI not found in PATH"
fi

echo "ONE-SHOT INSTALL END: $(date -Iseconds)"