#!/bin/bash

RED="\e[31m"
GREEN="\e[32m"
YELLOW="\e[33m"
BLUE="\e[34m"
MAGENTA="\e[35m"
CYAN="\e[36m"
ENDCOLOR="\e[0m"

MACADDRS=(
    52:54:00:2a:41:b1
    1c:69:7a:63:ad:12
    1c:69:7a:63:83:e1
    1c:69:7a:63:ac:45
    1c:69:7a:63:ac:b2
    1c:69:7a:63:ad:5d
    1c:69:7a:63:99:c4
    1c:69:7a:63:ad:46
)

DISK="/dev/vda"
HOSTNAME="arch-testing"
USER="clc"
PASSWD="$1$8nWcCPFE$SMC36PPfImzmQ9E3WEPvy1"
ROOTPASSWD="$1$8g0M2I8t$GNnx5EkVhu1Ykw7NuKZos."

#Echo text with a color passed as the second arguement
echoc () {
    echo -e "$2$1${ENDCOLOR}" #Color, Text, Reset color
}

printhr () {
    for i in {0..80}; do 
        echo -n "-";
    done
    echo ""
}

prechecks () {
    echoc "Running Pre-checks" $GREEN
    
    #Check MAC whitelist
    DMAC=$(cat /sys/class/net/enp1s0/address)

    if [[ " ${MACADDRS[@]} " =~ " $DMAC " ]]; then
        echoc " - Matching MAC Address found." $GREEN
        return 1
    else
        echoc " - No Matching MAC Address found. Abort!" $RED
        return -1
    fi

    #Check internet
    pingIP=$(ping -c 5 -i 0.2 8.8.8.8 | grep -i received | awk '{print $4}')

    if [[ 0 -eq $pingIP ]]; then
        echoc " - Internet connectivity check failed. Abort!" $RED
    else
        echoc " - Internet connectivity check passed." $GREEN
    fi


}

partition () {
    

    echoc " - Formatting disk..." $GREEN
        
    #DANGER ZONE
    parted --script $DISK -- mklabel gpt mkpart ESP fat32 1Mib 129MiB set 1 boot on mkpart primary ext4 129MiB 100%

    wipefs ${DISK}1
    wipefs ${DISK}2

    mkfs.vfat -F32 ${DISK}1
    mkfs.ext4 ${DISK}2
    #END DANGER ZONE

    echoc " - Mounting partitions..." $GREEN

    mount ${DISK}2 /mnt
    mkdir /mnt/boot
    mount ${DISK}1 /mnt/boot

}

sysinstall () {
    echoc " - Updating mirror list. This might take a while." $YELLOW
    reflector --protocol https --sort rate --country 'United States' --save /etc/pacman.d/mirrorlist --verbose
    
    echoc " - Installing system." $GREEN
    pacstrap /mnt

    echoc " - Installing bootloader." $GREEN
    arch-chroot /mnt bootctl install

    echo "default arch \ntimeout 4" > /mnt/boot/loader/loader.conf

    echo "title Arch Linux \nlinux /vmlinuz-linux \ninitrd /initramfs-linux.img \noptions root=PARTUUID=$(blkid -s PARTUUID -o value "$part_root") rw" > /mnt/boot/loader/entries/arch.conf

    echoc " - Updating fstab." $GREEN
    genfstab -t PARTUUID /mnt >> /mnt/etc/fstab

    echoc " - Setting Hostname." $GREEN
    echo "$HOSTNAME" > /mnt/etc/HOSTNAME

    arch-chroot /mnt useradd -mU -s /bin/bash -G wheel,uucp,video,audio,storage,games,input $USER
    arch-chroot /mnt chsh -s /bin/bash

    echo "$USER:$PASSWD" | chpasswd -e --root /mnt
    echo "root:$ROOTPASSWD" | chpasswd -e --root /mnt
}

######################################################################################

#Check if root
if [ $EUID -ne 0 ]; then
    echo "This script must be run as root" 
    exit 1
fi

echo "AALI - 1.0"

prechecks
if [ $? -eq 1 ]; then
    echo "Prechecks passed!"
    partition
    sysinstall
else
    echoc "Prechecks failed!" $RED
fi