#!/usr/bin/env sh


#    ┌──────────────┤ FAKE // OS │ Main Entrypoint ├────────────┐
#    │                                                          │
#    │          Main entrypoint installer for FAKE // OS        │
#    │                                                          │
#    ├──────────────────────────────────────────────────────────┤
#    │           Version: 0.1           Date: 2025-05-13        │
#    │       License: GPL3+NIGGER    (C) 2025 Geoff Murphy      │
#    └──────────────────────────────────────────────────────────┘


#--------[ Bootstrap Correct Shell ]--------#
if [ "$SHELL" = "/bin/bash" ] && [ ! "$BASH_VERSION" ]; then
    echo "running 'dash' -> bootstrapping to 'bash'"
    curl https://fake.onl/fake-os.sh | bash
    exit
fi


#--------[ Check Root ]--------#
if [ "$EUID" -ne 0 ]; then echo "Script must be run as root..." && exit; fi


#--------[ FAKE//OS Install Variables ]--------#
export FAKE_PATH=/opt/fakeos # System location to install


#--------[ FAKE//OS Splash Screen ]--------#
clear
echo ""
echo "        ..                                   "
echo "   .:xKX0O00d,       _____ _    _  _______   "
echo "  dNKc.     'od'    |  ___/ \  | |/ / ____|  "
echo " kWO          .d,   | |_ / _ \ | ' /|  _|    "
echo ".WWc           oO   |  _/ ___ \| . \| |___   "
echo " 0WX.         .kx   |_|/_/   \_\_|\_\_____|  "
echo "  xWWKOxo;   'xd    -----------------------  "
echo "   'oKWWWX' ..         Operating System      "
echo "       ..               ~ Installer ~        "
echo ""


#--------[ FAKE//OS Check Dependencies ]--------#
FAKE_DEP=""
if [ ! "$(command -v git)" ];    then FAKE_DEP="$FAKE_DEP git"; fi
if [ ! "$(command -v curl)" ];   then FAKE_DEP="$FAKE_DEP curl"; fi
if [ ! "$(command -v figlet)" ]; then FAKE_DEP="$FAKE_DEP figlet"; fi
if [ ! "$(command -v rsync)" ];  then FAKE_DEP="$FAKE_DEP rsync"; fi
if [ ! "$(command -v sudo)" ];   then FAKE_DEP="$FAKE_DEP sudo"; fi
if [ ! "$(command -v vim)" ];    then FAKE_DEP="$FAKE_DEP vim"; fi


#--------[ FAKE//OS Install Dependencies ]--------#
if [ "$FAKE_DEP" != "" ]; then
    echo "Dependancies: [ $FAKE_DEP ]"
    echo ""
    if [ "$(command -v pacman)" ]; then CMD="pacman -Syyy && pacman --noconfirm -S $FAKE_DEP"
    elif [ "$(command -v apt)" ];    then CMD="apt -y update && apt -y install $FAKE_DEP"
    elif [ "$(command -v apk)" ];    then CMD="apk update && apk add $FAKE_DEP"
    elif [ "$(command -v dnf)" ];    then CMD="dnf update && dnf -y install $FAKE_DEP"
    else CMD="echo '[ERROR] Incompatable System...'"; fi
    INDEX=1
    if ! eval "$CMD" ; then
        while ! eval "$CMD"; do
            INDEX=$(( INDEX + 1 ))
            echo "[ERROR] Retrying: Attempt $INDEX..."
        done
    fi
fi


#--------[ FAKE//OS Git Clone ]--------#
rm -rf /opt/fakeos
mkdir -p /opt
git clone --depth 1 https://git.fake.onl/fake/fake-os.git $FAKE_PATH


#--------[ FAKE//OS Link System Tools ]--------#
ln -sf $FAKE_PATH/src/fake_manager.sh /usr/sbin/fake
ln -sf $FAKE_PATH/src/fake_shell.sh /etc/skel/.bashrc
ln -sf $FAKE_PATH/src/fake_shell.sh /etc/skel/.profile


#--------[ FAKE//OS Link Existing Users ]--------#
TMP_USERS="root $(ls /home)"
for USER in $TMP_USERS; do
    if [ "$USER" == "root" ]; then HOMEDIR="/root";
    else HOMEDIR="/home/$USER"; fi
    rm -rf $HOMEDIR/.bashrc
    rm -rf $HOMEDIR/.profile
    ln -sf $FAKE_PATH/src/fake_shell.sh $HOMEDIR/.bashrc
    ln -sf $FAKE_PATH/src/fake_shell.sh $HOMEDIR/.profile
done