#!/usr/bin/env bash
# lib/packages.sh — package installation for macOS (brew) and Linux (apt)

install_packages() {
  local repo_dir="$1"
  step "Installing packages ($(os_name))"

  if is_macos; then
    _install_macos "$repo_dir"
  elif is_linux; then
    _install_linux "$repo_dir"
  else
    warn "Unknown OS — skipping package installation."
  fi
}

_install_macos() {
  local repo_dir="$1"
  if ! has_cmd brew; then
    info "Installing Homebrew..."
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  fi
  info "Running brew bundle..."
  brew bundle --file="$repo_dir/Brewfile" --no-lock
  success "Homebrew packages installed."
}

_install_linux() {
  local repo_dir="$1"
  info "Updating apt..."
  sudo apt-get update -qq

  if [[ -f "$repo_dir/Aptfile" ]]; then
    info "Installing apt packages from Aptfile..."
    while IFS= read -r pkg; do
      [[ -z "$pkg" || "$pkg" == \#* ]] && continue
      sudo apt-get install -y "$pkg" 2>/dev/null \
        && success "  apt: $pkg" \
        || warn "  apt: $pkg not found (may need manual install)"
    done < "$repo_dir/Aptfile"
  fi

  # uv (Python package manager) — not in apt
  if ! has_cmd uv; then
    info "Installing uv..."
    curl -LsSf https://astral.sh/uv/install.sh | sh
    export PATH="$HOME/.local/bin:$PATH"
  fi

  # lsd — modern ls, not in default apt
  if ! has_cmd lsd; then
    info "Installing lsd via cargo (or snap)..."
    if has_cmd snap; then snap install lsd 2>/dev/null; fi
  fi

  # lazygit — not in apt
  if ! has_cmd lazygit; then
    info "Installing lazygit..."
    LAZYGIT_VERSION=$(curl -s "https://api.github.com/repos/jesseduffield/lazygit/releases/latest" | grep '"tag_name"' | sed 's/.*"v\([^"]*\)".*/\1/')
    curl -Lo /tmp/lazygit.tar.gz "https://github.com/jesseduffield/lazygit/releases/latest/download/lazygit_${LAZYGIT_VERSION}_Linux_x86_64.tar.gz"
    tar xf /tmp/lazygit.tar.gz -C /tmp lazygit
    sudo install /tmp/lazygit /usr/local/bin
    rm /tmp/lazygit.tar.gz /tmp/lazygit
  fi

  success "Linux packages installed."
}