#!/bin/bash
WIN_DISK="${WIN_DISK}";
workingDir="$(pwd)";
overlayDir="$(mktemp -d)";
pushd "${BASH_SOURCE%/*}" > /dev/null;
. "./.env" > /dev/null 2>&1;
. "./lib/choose-disk.sh";

if [ ! -z "$WIN11_IMAGE_PATH" ]
then
    WIN11_IMAGE_PATH="$(bash -c "realpath $WIN11_IMAGE_PATH")";
fi;

if [ ! -f "$WIN11_IMAGE_PATH" ]
then
    if [ ! -f "./.env" ]
    then
        cp .env.template .env;
    fi;

    echo "Please specify the path to the Windows 11 ISO image in your .env file located at:";
    realpath --relative-to "$workingDir" "$(realpath .env)";
else
    buildDir="build";
    mountPath="/media/wininstall";
    bootPath="/media/boot";
    dataPath="/media/data";
    setupLabel="winiso";
    gitArchive="$(realpath "./$buildDir/git.msi")";
    pwshArchive="./$buildDir/pwsh.zip";
    editionField="Edition ID";

    mkdir -p "$buildDir";
    cp -r winfs/* "$overlayDir";

    if [ ! -f "$gitArchive" ]
    then
        curl -L "https://github.com/git-for-windows/git/releases/download/v2.41.0.windows.1/PortableGit-2.41.0-64-bit.7z.exe" -o "$gitArchive";
    fi;

    if [ ! -f "$pwshArchive" ]
    then
        curl -L "https://github.com/PowerShell/PowerShell/releases/download/v7.3.4/PowerShell-7.3.4-win-x64.zip" -o "$pwshArchive";
    fi;

    mkdir -p "$overlayDir/git";
    pushd "$overlayDir/git" > /dev/null;
    7z x "$gitArchive";
    popd > /dev/null;

    unzip "$pwshArchive" -d "$overlayDir/PowerShell";

    sudo mount --mkdir "$WIN11_IMAGE_PATH" "$mountPath";
    isoFile="./$buildDir/win.iso";
    mkdir -p "$(dirname "$isoFile")";
    mkwinpeimg --iso --arch amd64 --overlay "$overlayDir" --windows-dir "$mountPath" "$isoFile";
    sudo umount "$mountPath";

    sudo shred -vfzn 0 -s 1G "$WIN_DISK";

    if [ ! -b "$WIN_DISK" ]
    then
        chooseDisk WIN_DISK;
    fi;

    {
        echo "o";

        echo "n";
        echo "";
        echo "";
        echo "";
        echo "+2G";
        echo "y";
        echo "t";
        echo "c";
        echo "a";
        echo "";

        echo "n";
        echo "";
        echo "";
        echo "";
        echo "";
        echo "y";
        echo "t";
        echo "";
        echo "7";

        echo "w";
    } | sudo fdisk "$WIN_DISK";

    while true
    do
        disks=($(bash -c "echo $WIN_DISK*"));
        [ "${#disks[@]}" -ge 3 ] && break;
    done;

    bootDisk="${disks[1]}";
    dataDisk="${disks[2]}";
    sudo mkfs.fat -F 32 -n "BOOT" "$bootDisk";
    sudo mkfs.ntfs -fFL "$setupLabel" "$dataDisk";
    sudo mount --mkdir "$bootDisk" "$bootPath";
    sudo mount --mkdir "$dataDisk" "$dataPath";
    sudo mount --mkdir "$isoFile" "$mountPath";
    sudo cp -r "$mountPath"/* "$bootPath";
    sudo umount "$mountPath";

    sudo mount "$WIN11_IMAGE_PATH" "$mountPath";
    sudo cp -r "$mountPath"/* "$dataPath";
    sudo cp Autounattend.template.xml "$dataPath";
    sudo cp -r "$mountPath/efi" "$bootPath";
    wimFile="$dataPath/sources/install.wim";

    while [ ! "$(echo $(wiminfo "$wimFile" 1 | grep "^$editionField" | cut -d ":" -f2))" == "Professional" ]
    do
        sudo wimdelete --soft "$wimFile" 1;
    done;

    while wiminfo "$wimFile" 2 2>&1 > /dev/null
    do
        sudo wimdelete --soft "$wimFile" 2;
    done;

    sudo bash -c "umount -vf '$mountPath'; umount -vf '$bootPath'; umount -vf '$dataPath'; rm -rf '$mountPath' '$bootPath' '$dataPath';";
fi;

popd > /dev/null;