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

##
# toes installer
# Usage: curl -fsSL https://toes.dev/install | sh
#
# Installs or updates toes on a Raspberry Pi.
# Must be run as the 'toes' user with passwordless sudo.

RELEASE_URL="https://toes.dev/release/latest.tar.gz"
DEST=~/toes
APPS_DIR=~/apps
DATA_DIR=~/data

# ── Helpers ──────────────────────────────────────────────

b=$'\033[1m' d=$'\033[2m' g=$'\033[32m' c=$'\033[36m' y=$'\033[33m' r=$'\033[0m'

quiet() { "$@" > /dev/null 2>&1; }

info() { echo "  ${d}>>${r} $1"; }

fail() { echo "  ${y}ERROR:${r} $1" >&2; exit 1; }

# ── Preflight ────────────────────────────────────────────

echo ""
echo "  ${d}╔══════════════════════════════════╗${r}"
echo "  ${d}║${r} ${b}🐾 toes${r} ${d}- personal web appliance ║${r}"
echo "  ${d}╚══════════════════════════════════╝${r}"
echo ""

[ "$(whoami)" = "toes" ] || fail "Must be run as the 'toes' user."
sudo -n true 2>/dev/null || fail "Requires passwordless sudo."

# ── System packages ──────────────────────────────────────

info "Updating system packages"
quiet sudo apt-get update
quiet sudo apt-get install -y git libcap2-bin avahi-utils fish unzip

if [ "$(getent passwd toes | cut -d: -f7)" != "/usr/bin/fish" ]; then
  info "Setting fish as default shell"
  quiet sudo chsh -s /usr/bin/fish toes
fi

# ── Bun ──────────────────────────────────────────────────

BUN="$HOME/.bun/bin/bun"

if [ ! -x "$BUN" ]; then
  info "Installing bun"
  curl -fsSL https://bun.sh/install | bash > /dev/null 2>&1
  [ -x "$BUN" ] || fail "bun installation failed."
fi

sudo ln -sf "$BUN" /usr/local/bin/bun

sudo setcap 'cap_net_bind_service=+ep' "$BUN"

# ── Download ─────────────────────────────────────────────

info "Downloading toes"
mkdir -p "$DEST"
curl -fsSL "$RELEASE_URL" | tar xz --strip-components=1 -C "$DEST"

# ── Directories ──────────────────────────────────────────

mkdir -p "$APPS_DIR" "$DATA_DIR" "$DATA_DIR/toes"

# ── Dependencies ─────────────────────────────────────────

cd "$DEST"

info "Installing dependencies"
quiet bun install

# ── Bundled apps ─────────────────────────────────────────

REPOS_DIR="$DATA_DIR/repos"
mkdir -p "$REPOS_DIR"

info "Installing bundled apps"
pids=()
for app_dir in "$DEST"/apps/*/; do
  app=$(basename "$app_dir")
  [ -f "$app_dir/package.json" ] || continue
  echo "   $app"
  (
    cp -a "$app_dir" "$APPS_DIR/$app"
    quiet bun install --frozen-lockfile --cwd "$APPS_DIR/$app" || quiet bun install --cwd "$APPS_DIR/$app"
  ) &
  pids+=("$!")
done

for pid in "${pids[@]}"; do
  wait "$pid" || fail "A bundled app failed to install."
done

# Copy pre-built bare repos for git-based versioning
cp -a "$DEST"/dist/repos/*.git "$REPOS_DIR/"

# ── CLI + SSH ────────────────────────────────────────────

info "Setting up SSH access"
sudo bash "$DEST/scripts/setup-ssh.sh"

info "Installing CLI"
sudo install -m 755 "$DEST/dist/toes" /usr/local/bin/toes

# ── Systemd ──────────────────────────────────────────────

info "Installing toes service"
sudo install -m 644 "$DEST/scripts/toes.service" /etc/systemd/system/toes.service
sudo systemctl daemon-reload
sudo systemctl enable toes

info "Restarting toes"
sudo systemctl restart toes

# ── Done ─────────────────────────────────────────────────

VERSION=$(grep '"version"' "$DEST/package.json" | head -1 | sed 's/.*"version": *"\(.*\)".*/\1/')

echo ""
echo "  ${b}${g}🐾 toes $VERSION is up!${r}"
echo "  ${d}─────────────────────────────${r}"
echo ""
echo "  Dashboard: ${c}http://$(hostname).local${r}"
echo "  SSH CLI:   ${c}ssh cli@$(hostname).local${r}"
echo ""
echo "  ${d}Grab the CLI:${r}"
echo "  ${c}curl -fsSL http://$(hostname).local/install | bash${r}"
echo ""