#!/usr/bin/env bash
# Stage 10 — install everything available from the official repositories.
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"

log "Installing official packages"

require_arch
require_not_root
require_sudo

mapfile -t PKGS < <(read_pkg_list "$PACKAGES_DIR/pacman.txt")
[[ ${#PKGS[@]} -gt 0 ]] || die "pacman.txt yielded no packages"

# Split into "already installed" and "to install" so re-runs are quiet.
TO_INSTALL=()
for p in "${PKGS[@]}"; do
  if pacman -Qq "$p" >/dev/null 2>&1; then
    continue
  fi
  TO_INSTALL+=("$p")
done

if [[ ${#TO_INSTALL[@]} -eq 0 ]]; then
  ok "all ${#PKGS[@]} packages already installed"
else
  step "installing ${#TO_INSTALL[@]} of ${#PKGS[@]} packages"
  printf '%s  %s%s\n' "$C_DIM" "${TO_INSTALL[*]}" "$C_RESET"
  # --needed keeps reinstalls off the table; failures on a single package
  # should not nuke the whole run, so retry one-by-one if the batch fails.
  if ! run sudo pacman -S --needed --noconfirm "${TO_INSTALL[@]}"; then
    warn "batch install failed — retrying package by package"
    for p in "${TO_INSTALL[@]}"; do
      run sudo pacman -S --needed --noconfirm "$p" || warn "could not install: $p"
    done
  fi
fi

# --- GPU driver hint -------------------------------------------------------
if lspci 2>/dev/null | grep -qi 'vga.*intel'; then
  step "Intel GPU detected — installing vulkan-intel"
  run sudo pacman -S --needed --noconfirm vulkan-intel intel-media-driver || true
elif lspci 2>/dev/null | grep -qi 'vga.*amd\|vga.*ati'; then
  step "AMD GPU detected — installing vulkan-radeon"
  run sudo pacman -S --needed --noconfirm vulkan-radeon libva-mesa-driver || true
elif lspci 2>/dev/null | grep -qi 'vga.*nvidia'; then
  warn "NVIDIA GPU detected — install 'nvidia' or 'nvidia-open' yourself; see README"
fi

ok "official packages done"