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

SERVER_BASE_URL="https://setup-mm4b.publicker.dev"
REPO_URL="https://github.com/nofrixion/nofrixion.business.git"
ROOT_DIR="${HOME}/mm4b"
SERVER_DIR="${ROOT_DIR}/mm4b-compiled-server"
SERVER_BIN_PATH="${SERVER_DIR}/mm4b-server"
WEB_DIR="${ROOT_DIR}/nofrixion.business"

info() { printf "\n%s\n" "$*"; }
die()  { printf "\nERROR: %s\n" "$*" >&2; exit 1; }
need_cmd() { command -v "$1" >/dev/null 2>&1 || die "Missing required command: $1"; }

detect_platform() {
  local os arch
  os="$(uname -s)"
  arch="$(uname -m)"

  case "$os" in
    Darwin) os="darwin" ;;
    Linux)  os="linux" ;;
    MINGW*|MSYS*|CYGWIN*) os="windows" ;;
    *) die "Unsupported OS: $os" ;;
  esac

  case "$arch" in
    arm64|aarch64) arch="arm64" ;;
    x86_64|amd64)  arch="x64" ;;
    *) die "Unsupported arch: $arch" ;;
  esac

  echo "${os}-${arch}"
}

download_server_binary() {
  local platform ext=""
  platform="$(detect_platform)"
  
  if [[ "$platform" == windows-* ]]; then
    ext=".exe"
  fi
  
  local url="${SERVER_BASE_URL}/mm4b-server-${platform}${ext}"
  local bin_path="${SERVER_BIN_PATH}${ext}"

  info "Downloading server binary for ${platform}..."
  mkdir -p "$SERVER_DIR"
  curl -fL "$url" -o "$bin_path"
  chmod +x "$bin_path"
}

download_run_script() {
  info "Downloading run script..."
  curl -fL "${SERVER_BASE_URL}/run_mm4b.sh" -o "${ROOT_DIR}/run_mm4b.sh"
  chmod +x "${ROOT_DIR}/run_mm4b.sh"
}

clone_repo() {
  need_cmd git
  if [[ -d "$WEB_DIR" ]]; then
    info "Repo already exists, pulling latest..."
    ( cd "$WEB_DIR" && git pull )
  else
    info "Cloning repo..."
    git clone "$REPO_URL" "$WEB_DIR"
  fi
}

install_deps() {
  need_cmd pnpm
  info "Installing dependencies..."
  ( cd "$WEB_DIR" && pnpm install )
}

# -------------------- main --------------------
info "Setting up mm4b in ${ROOT_DIR}..."
mkdir -p "$ROOT_DIR"

download_server_binary
download_run_script
clone_repo
install_deps

info "Setup complete!"
info "To run: cd ${ROOT_DIR} && ./run_mm4b.sh"