#!/bin/bash

set -o pipefail
M4_DEF_FILE="system.m4"

if [ -f "${M4_DEF_FILE}" ]; then
    dialog \
        --backtitle "Dotfile configuration" \
        --title "Overwrite settings?" \
        --defaultno \
        --yesno "A system.m4 file already exists, do you want to make that file over again? If you press No, the Makefile will be processed again based on the current system.m4 file." 0 0
    if [ "$?" -eq 1 ]; then
        m4 -P Makefile.m4 > Makefile
        exit 0
    fi
fi

HOME_DIRECTORY=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --inputbox "Home directory" \
      0 0 "${HOME}" \
3>&1 1>&2 2>&3 3>&-)

DEFAULT_SHELL=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --inputbox "Default shell" \
      0 0 "${SHELL}" \
3>&1 1>&2 2>&3 3>&-)

DEFAULT_EDITOR=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --inputbox "Default editor" \
      0 0 "nvim" \
3>&1 1>&2 2>&3 3>&-)

SYSID=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
      --inputbox "System id (magical number)" \
      0 0 "1" \
3>&1 1>&2 2>&3 3>&-)

SYSTEM_TYPE=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --radiolist "System type" \
      0 0 0 \
      0 "Local" on \
      1 "Remote" off \
3>&1 1>&2 2>&3 3>&-)

DISTRO=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --radiolist "Distro" \
      0 0 0 \
      0 "Debian" on \
      1 "Fedora" off \
3>&1 1>&2 2>&3 3>&-)

GIT_VALUES=$(dialog \
	  --backtitle "Dotfile configuration" \
	  --title "Configure" \
	  --form "Git settings" \
0 50 0 \
	"Username:" 1 1	"$GIT_AUTHOR_NAME" 	1 10 255 0 \
    "Email:"    2 1	"$GIT_AUTHOR_EMAIL"  	2 10 255 0 \
3>&1 1>&2 2>&3 3>&-)
GIT_VALUES=($GIT_VALUES)

FEATURES="$(dialog --stdout \
    --backtitle "Dotfile configuration" \
    --title "Configure" \
    --checklist "Change dotfile features:" 0 0 0 \
    1 "General tools (highligt, mediainfo, git, ripgrep...)" on \
    2 "Other dotfile symlinks (Not for specific features below)" on \
    3 "neovim" on \
    4 "ZSH and Oh-My-Zsh" off \
    5 "tlp" off \
    6 "autorandr" off \
    7 "greetd and tuigreet" off \
    8 "Powerline and P10K" off \
    9 "Sway" off \
    10 "QTile" off \
    11 "Bash" on \
    12 "home folder bin dir" off \
    13 "tmux" on)"


# Write all to file
echo "m4_define(\`DOTFILES_DIR', \`$(pwd)')m4_dnl" > ${M4_DEF_FILE}
echo "m4_define(\`HOME_DIRECTORY', \`${HOME_DIRECTORY}')m4_dnl" >> ${M4_DEF_FILE}
echo "m4_define(\`DEFAULT_SHELL', \`${DEFAULT_SHELL}')m4_dnl" >> ${M4_DEF_FILE}
echo "m4_define(\`DEFAULT_EDITOR', \`${DEFAULT_EDITOR}')m4_dnl" >> ${M4_DEF_FILE}
echo "m4_define(\`SYSID', \`${SYSID}')m4_dnl" >> ${M4_DEF_FILE}

case $SYSTEM_TYPE in
  0)
    echo "m4_define(\`DOTFILES_TYPE', \`local')m4_dnl" >> ${M4_DEF_FILE}
  ;;
  1)
    echo "m4_define(\`DOTFILES_TYPE', \`remote')m4_dnl" >> ${M4_DEF_FILE}
  ;;
esac

case $DISTRO in
  0)
    echo "m4_define(\`DISTRO', \`debian')m4_dnl" >> ${M4_DEF_FILE}
  ;;
  1)
    echo "m4_define(\`DISTRO', \`fedora')m4_dnl" >> ${M4_DEF_FILE}
  ;;
esac

echo "m4_define(\`GIT_USER', \`${GIT_VALUES[0]}')m4_dnl" >> ${M4_DEF_FILE}
echo "m4_define(\`GIT_EMAIL', \`${GIT_VALUES[1]}')m4_dnl" >> ${M4_DEF_FILE}

for choice in ${FEATURES}; do
    case $choice in
      1)
        echo "m4_define(\`DT_TOOLS', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      2)
        echo "m4_define(\`DT_OTHER_SYMLINKS', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      3)
        echo "m4_define(\`DT_NEOVIM', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      4)
        echo "m4_define(\`DT_ZSH', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      5)
        echo "m4_define(\`DT_TLP', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      6)
        echo "m4_define(\`DT_AUTORANDR', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      7)
        echo "m4_define(\`DT_GREETD_TUIGREET', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      8)
        echo "m4_define(\`DT_POWERLINE_P10K', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      9)
        echo "m4_define(\`DT_SWAY', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      10)
        echo "m4_define(\`DT_QTILE', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      11)
        echo "m4_define(\`DT_BASH', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      12)
        echo "m4_define(\`DT_HOMEBIN', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
      13)
        echo "m4_define(\`DT_TMUX', \`1')m4_dnl" >> ${M4_DEF_FILE}
      ;;
    esac
done

m4 -P Makefile.m4 > Makefile