#!/usr/bin/env bash
# @file System Requirements
# @brief Ensures commonly used system packages that are common dependencies of other packages are installed
# @description
#     This script installs required system packages. Each system's required packages are defined in `home/.chezmoitemplates/$DISTRO_ID`,
#     where `$DISTRO_ID` is equal to the Linux distribution ID found in `/etc/os-release`.

{{ includeTemplate "universal/logg-before" }}

{{- $packages := splitList " " (includeTemplate "universal/common-dependencies" .) -}}
{{- $additionalPackages := splitList " " (includeTemplate (joinPath .host.distro.id "common-dependencies") .) -}}
{{- $packages = concat $packages $additionalPackages -}}

### Ensure Ubuntu / Debian run in `noninteractive` mode
export DEBIAN_FRONTEND=noninteractive

if [ -d /Applications ] && [ -d /System ]; then
  ### Ensure environment variables are appropriately configured
  export VOLTA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}/volta"
  export PATH="$VOLTA_HOME/bin:$PATH"

  ### Check for presence of Homebrew
  if command -v brew > /dev/null; then
    ### Install base dependencies
    logg 'Installing base dependencies for macOS using brew bundle'
    logg info 'Dependencies: age asdf jq node glow go go-task/tap/go-task gnupg gum m-cli progress volta yq m-cli yq zx'
    logg info 'GNU compatibility dependencies: coreutils findutils'

    brew bundle --verbose --no-lock --file=/dev/stdin <<EOF
{{ includeTemplate "darwin/Brewfile" . -}}
EOF

    ### Ensure Python version is 3.11 or higher
    PYTHON_VERSION="$(python3 --version | sed 's/Python //')"
    MIN_PYTHON_VERSION="3.11.0"
    if [ "$(printf '%s\n' "$MIN_PYTHON_VERSION" "$PYTHON_VERSION" | sort -V | head -n1)" = "$MIN_PYTHON_VERSION" ]; then
      logg info "Minimum Python version satisfied (minimum: $MIN_PYTHON_VERSION, current: $PYTHON_VERSION)"
    else
      logg info 'Updating Python 3 version with brew link --overwrite python@3.11'
      brew link --overwrite python@3.11
    fi
  else
    logg error 'brew was not found in the PATH'
  fi
else
  if [ '{{ .host.distro.id }}' = 'archlinux' ]; then
    ### Print dependency list
    logg 'Installing common dependencies using pacman'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if pacman -Qs "$PACKAGE" > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo pacman -Sy --noconfirm --needed "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via pacman'
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done

    ### Install yay
    if ! command -v yay > /dev/null; then
      logg info 'Cloning yay from https://aur.archlinux.org/yay.git to /usr/local/src/yay'
      sudo git clone https://aur.archlinux.org/yay.git /usr/local/src/yay
      cd /usr/local/src/yay
      logg info 'Installing yay via sudo makepkg -si'
      sudo makepkg -si
    fi
  elif [ '{{ .host.distro.id }}' = 'centos' ]; then
    ### Upgrade system
    logg info 'Upgrade system'
    sudo dnf upgrade --refresh -y

    ### Enable CRB
    logg info 'Ensure the CRB repository is activated'
    sudo dnf config-manager --set-enabled crb

    ### Add EPEL
    if ! dnf repolist | grep 'epel ' > /dev/null; then
      logg info 'Adding the EPEL repository'
      sudo dnf install -y "https://dl.fedoraproject.org/pub/epel/epel-release-latest-${VERSION}.noarch.rpm"
    fi

    ### Add EPEL Next
    if ! dnf repolist | grep 'epel-next' > /dev/null; then
      logg info 'Adding the EPEL Next repository'
      sudo dnf install -y "https://dl.fedoraproject.org/pub/epel/epel-next-release-latest-${VERSION}.noarch.rpm"
    else
      logg info 'EPEL Next repository already enabled (EPEL compatibility for CentOS)'
    fi
    ### Detect package manager
    if command -v dnf > /dev/null; then
      PKG_MANAGER='dnf'
    else
      PKG_MANAGER='yum'
    fi

    ### Print dependency list
    logg 'Installing common dependencies using '"$PKG_MANAGER"''
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if rpm -qa | grep "^$PACKAGE-" > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo "$PKG_MANAGER" install -y "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via '"$PKG_MANAGER"''
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done
  elif [ '{{ .host.distro.id }}' = 'debian' ]; then
    ### Print dependency list
    logg 'Installing common dependencies using apt-get'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Update apt-get cache
    logg info 'Running sudo apt-get update'
    sudo apt-get update

    ### Update debconf for non-interactive installation
    if command -v dpkg-reconfigure > /dev/null; then
      logg info 'Running sudo dpkg-reconfigure debconf -f noninteractive -p critical'
      sudo dpkg-reconfigure debconf -f noninteractive -p critical
    fi

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if dpkg -l "$PACKAGE" | grep -E '^ii' > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo apt-get install -y --no-install-recommends "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via apt-get'
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done
  elif [ '{{ .host.distro.id }}' = 'fedora' ]; then
    ### Upgrade system
    logg info 'Upgrade system'
    sudo dnf upgrade --refresh -y

    # https://docs.fedoraproject.org/en-US/quick-docs/dnf-system-upgrade/
    # TODO - Optional: Look into using Fedora's upgrade system described in the link above
    # sudo dnf install dnf-plugin-system-upgrade

    ### Add RPM Fusion Free repository
    if ! dnf repolist | grep 'rpmfusion-free' > /dev/null; then
      logg info 'Adding RPM-Fusion Free repository for Fedora'
      sudo dnf install -y "https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm"
    fi

    ### Add RPM Fusion Non-Free repository
    if ! dnf repolist | grep 'rpmfusion-nonfree' > /dev/null; then
      logg info 'Adding RPM-Fusion Non-Free repository for Fedora'
      sudo dnf install -y "https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm"
    fi

    ### Add Appstream data from the RPM Fusion repositories
    if command -v gnome-shell > /dev/null; then
      logg info 'Adding Appstream data from the RPM-Fusion repositories'
      sudo dnf group update -y core
    else
      logg warn 'Skipping installation of Appstream data because GNOME is not installed'
    fi
    ### Print dependency list
    logg 'Installing common dependencies using dnf'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if rpm -qa | grep "^$PACKAGE-" > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo dnf install -y "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via dnf'
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done
  elif [ '{{ .host.distro.id }}' = 'freebsd' ]; then
    ### Print dependency list
    logg 'Installing common dependencies using pkg'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Install base dependencies
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Installing '"$PACKAGE"''
      sudo pkg install -y "$PACKAGE" || EXIT_CODE=$?
      if [ -n "$EXIT_CODE" ]; then
        logg error 'Error installing '"$PACKAGE"' via zypper'
        logg info 'Proceeding with installation..'
        unset EXIT_CODE
      fi
    done
  elif [ '{{ .host.distro.id }}' = 'opensuse' ]; then
    ### Print dependency list
    logg 'Installing common dependencies using zypper'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Install base_devel
    logg info 'Installing base_devel pattern with sudo zypper install -t pattern devel_basis'
    sudo zypper install -t pattern devel_basis

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if rpm -qa | grep "$PACKAGE" > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo zypper install -y "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via zypper'
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done
  elif [ '{{ .host.distro.id }}' = 'ubuntu' ]; then
    ### Print dependency list
    logg 'Installing common dependencies using apt-get'
    logg info 'Dependencies: {{ $packages | sortAlpha | uniq | join " " -}}'

    ### Update apt-get cache
    logg info 'Running sudo apt-get update'
    sudo apt-get update

    ### Update debconf for non-interactive installation
    if command -v dpkg-reconfigure > /dev/null; then
      logg info 'Running sudo dpkg-reconfigure debconf -f noninteractive -p critical'
      sudo dpkg-reconfigure debconf -f noninteractive -p critical
    fi

    ### Install packages if they are not already present
    for PACKAGE in {{ $packages | sortAlpha | uniq | join " " -}}; do
      logg info 'Checking for presence of '"$PACKAGE"''
      if dpkg -l "$PACKAGE" | grep -E '^ii' > /dev/null; then
        logg info 'The '"$PACKAGE"' package is already installed'
      else
        logg info 'Installing '"$PACKAGE"''
        sudo apt-get install -y --no-install-recommends "$PACKAGE" || EXIT_CODE=$?
        if [ -n "$EXIT_CODE" ]; then
          logg error 'Error installing '"$PACKAGE"' via apt-get'
          logg info 'Proceeding with installation..'
          unset EXIT_CODE
        fi
      fi
    done
  fi
fi