#!/usr/bin/env bash

# ==========================================================
# ProxMenux - UUP Dump ISO Creator Custom
# ==========================================================
# Author      : MacRimi
# Copyright   : (c) 2024 MacRimi
# License     : (CC BY-NC 4.0) (https://github.com/MacRimi/ProxMenux/blob/main/LICENSE)
# Version     : 1.0
# Last Updated: 30/06/2025
# ==========================================================
# Description:
# This script is part of the ProxMenux tools for Proxmox VE.
# It allows downloading and converting official Windows ISO images 
# from UUP Dump using a shared link (with ID, pack, and edition).
#
# Key features:
# - Automatically installs and verifies required dependencies (aria2c, cabextract, wimlib-imagex…)
# - Downloads the selected Windows edition from UUP Dump using aria2
# - Converts the downloaded files into a bootable ISO
# - Stores the resulting ISO in the default template path (/var/lib/vz/template/iso)
# - Provides a graphical prompt via whiptail for user-friendly usage
#
# This tool simplifies the creation of official Windows ISOs
# for use in virtual machines within Proxmox VE.
# ==========================================================

BASE_DIR="/usr/local/share/proxmenux"
UTILS_FILE="$BASE_DIR/utils.sh"
VENV_PATH="/opt/googletrans-env"

if [[ -f "$UTILS_FILE" ]]; then
    source "$UTILS_FILE"
fi

load_language
initialize_cache

# ==========================================================
detect_iso_dir() {
    for store in $(pvesm status -content iso | awk 'NR>1 {print $1}'); do
        for ext in iso img; do
            volid=$(pvesm list "$store" --content iso | awk -v ext="$ext" 'NR>1 && $2 ~ ext {print $1; exit}')
            if [[ -n "$volid" ]]; then
                path=$(pvesm path "$volid" 2>/dev/null)
                dir=$(dirname "$path")
                [[ -d "$dir" ]] && echo "$dir" && return 0
            fi
        done
    done
    
    if [[ -d /var/lib/vz/template/iso ]]; then
        echo "/var/lib/vz/template/iso"
        return 0
    fi
    
    return 1
}


function get_destination_path() {
    local default_path="$1"
    local user_path=""
    
    while true; do

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

        user_path=$(dialog  --backtitle "ProxMenux" --inputbox "$(translate "Enter destination path for ISO file")" 10 80 "$default_path" 3>&1 1>&2 2>&3)
        
######################################

        if [[ $? -ne 0 ]]; then
            return 1
        fi
        

        if [[ -z "$user_path" ]]; then
            user_path="$default_path"
        fi
        

        if [[ ! -d "$user_path" ]]; then
            if mkdir -p "$user_path" 2>/dev/null; then
                #msg_ok "$(translate "Directory created successfully:") $user_path"
                echo "$user_path"
                return 0
            else
                dialog --backtitle "ProxMenux" --msgbox "$(translate "Error: Cannot create directory") '$user_path'. $(translate "Please check permissions and try again.")" 8 60

                continue
            fi
        else

            if [[ -w "$user_path" ]]; then
                echo "$user_path"
                return 0
            else
                dialog --backtitle "ProxMenux" --msgbox "$(translate "Error: No write permissions in directory") '$user_path'. $(translate "Please choose another path.")" 8 60

                continue
            fi
        fi
    done
}

function run_uupdump_creator() {
    local DEPS=(curl aria2 cabextract wimtools genisoimage chntpw)
    local CMDS=(curl aria2c cabextract wimlib-imagex genisoimage chntpw)
    local MISSING=()
    local FAILED=()


    for i in "${!CMDS[@]}"; do
        if ! command -v "${CMDS[$i]}" &>/dev/null; then
            MISSING+=("${DEPS[$i]}")
        fi
    done

    if [[ ${#MISSING[@]} -gt 0 ]]; then
        clear
        show_proxmenux_logo
        echo -e
        msg_info "$(translate "Installing dependencies: ${MISSING[*]}")"
        apt-get update -qq >/dev/null 2>&1
        msg_ok "$(translate "All dependencies installed and verified.")"
        if ! apt-get install -y "${MISSING[@]}" >/dev/null 2>&1; then
            msg_error "$(translate "Failed to install: ${MISSING[*]}")"
            exit 1
        fi
    fi


    for i in "${!CMDS[@]}"; do
        if ! command -v "${CMDS[$i]}" &>/dev/null; then
            FAILED+=("${CMDS[$i]}")
        fi
    done

    #if [[ ${#FAILED[@]} -eq 0 ]]; then
    #    msg_ok "$(translate "All dependencies installed and verified.")"
    #else
    #    msg_error "$(translate "Missing commands after installation: ${FAILED[*]}")"
    #    exit 1
    #fi


    ISO_DIR=$(detect_iso_dir)
    if [[ -z "$ISO_DIR" ]]; then
        msg_error "$(translate "Could not determine a valid ISO storage directory.")"
        exit 1
    fi
    mkdir -p "$ISO_DIR"

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

    DEFAULT_TMP="/root/uup-temp"
    USER_INPUT=$(dialog --backtitle "ProxMenux" --inputbox "Enter temporary folder path (default: $DEFAULT_TMP):" 10 60 "$DEFAULT_TMP" 3>&1 1>&2 2>&3)
    
######################################


    if [[ $? -ne 0 ]]; then
        return
    fi


    if [[ $? -ne 0 || -z "$USER_INPUT" ]]; then
        USER_INPUT="$DEFAULT_TMP"
    fi


    if [[ "$USER_INPUT" == "$DEFAULT_TMP" ]]; then
        TMP_DIR="$USER_INPUT"
        CLEAN_ALL=true
    else
        TIMESTAMP=$(date +%Y%m%d_%H%M%S)
        RANDOM_ID=$(head /dev/urandom | tr -dc a-z0-9 | head -c 4)
        TMP_DIR="${USER_INPUT%/}/uup-session-${TIMESTAMP}-${RANDOM_ID}"
        CLEAN_ALL=false
    fi

    mkdir -p "$TMP_DIR" || {
        msg_error "$(translate "Failed to create temporary directory:") $TMP_DIR"
        exit 1
    }


    OUT_DIR=$(get_destination_path "$ISO_DIR")
    if [[ $? -ne 0 ]]; then
        return 1
    fi


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

    UUP_URL=$(whiptail --backtitle "ProxMenux" --inputbox "$(translate "Paste the UUP Dump URL here")" 10 90 3>&1 1>&2 2>&3)

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


    if [[ $? -ne 0 ]]; then
        return
    fi

    
    if [[ $? -ne 0 || -z "$UUP_URL" ]]; then
        msg_warn "$(translate "Cancelled by user or empty URL.")"
        return 1  
    fi


    if [[ ! "$UUP_URL" =~ id=.+\&pack=.+\&edition=.+ ]]; then
        msg_error "$(translate "The URL does not contain the required parameters (id, pack, edition).")"
        sleep 2
        return
    fi


    BUILD_ID=$(echo "$UUP_URL" | grep -oP 'id=\K[^&]+')
    LANG=$(echo "$UUP_URL" | grep -oP 'pack=\K[^&]+')
    EDITION=$(echo "$UUP_URL" | grep -oP 'edition=\K[^&]+')
    ARCH="amd64"
    clear
    show_proxmenux_logo
    echo -e
    echo -e "\n${BGN}=============== UUP Dump Creator ===============${CL}"
    echo -e "    ${BGN}🆔 ID:${CL} ${DGN}$BUILD_ID${CL}"
    echo -e "    ${BGN}🌐 Language:${CL} ${DGN}$LANG${CL}"
    echo -e "    ${BGN}💿 Edition:${CL} ${DGN}$EDITION${CL}"
    echo -e "    ${BGN}🖥️ Architecture:${CL} ${DGN}$ARCH${CL}"
    echo -e "    ${BGN}📁 Destination:${CL} ${DGN}$OUT_DIR${CL}"
    echo -e "${BGN}===============================================${CL}\n"


    CONVERTER="$TMP_DIR/converter"
    if [[ ! -f "$CONVERTER/convert.sh" ]]; then
        echo "📦 $(translate "Downloading UUP converter...")"
        mkdir -p "$CONVERTER"
        cd "$CONVERTER" || exit 1
        wget -q https://git.uupdump.net/uup-dump/converter/archive/refs/heads/master.tar.gz -O converter.tar.gz
        tar -xzf converter.tar.gz --strip-components=1
        chmod +x convert.sh
        cd "$TMP_DIR" || exit 1
    fi


    cat > uup_download_linux.sh <<EOF
#!/bin/bash
mkdir -p files
echo "https://git.uupdump.net/uup-dump/converter/archive/refs/heads/master.tar.gz" > files/converter_multi

for prog in aria2c cabextract wimlib-imagex chntpw; do
  which \$prog &>/dev/null || { echo "\$prog not found."; exit 1; }
done

which genisoimage &>/dev/null || which mkisofs &>/dev/null || { echo "genisoimage/mkisofs not found."; exit 1; }

destDir="UUPs"
tempScript="aria2_script.\$RANDOM.txt"

aria2c --no-conf --console-log-level=warn --log-level=info --log="aria2_download.log" \\
  -x16 -s16 -j2 --allow-overwrite=true --auto-file-renaming=false -d"files" -i"files/converter_multi" || exit 1

aria2c --no-conf --console-log-level=warn --log-level=info --log="aria2_download.log" \\
  -o"\$tempScript" --allow-overwrite=true --auto-file-renaming=false \\
  "https://uupdump.net/get.php?id=$BUILD_ID&pack=$LANG&edition=$EDITION&aria2=2" || exit 1

grep '#UUPDUMP_ERROR:' "\$tempScript" && { echo "❌ Error generating UUP download list."; exit 1; }

aria2c --no-conf --console-log-level=warn --log-level=info --log="aria2_download.log" \\
  -x16 -s16 -j5 -c -R -d"\$destDir" -i"\$tempScript" || exit 1
EOF

    chmod +x uup_download_linux.sh


    ./uup_download_linux.sh


    UUP_FOLDER=$(find "$TMP_DIR" -type d -name "UUPs" | head -n1)
    [[ -z "$UUP_FOLDER" ]] && msg_error "$(translate "No UUP folder found.")" && exit 1

    echo -e "\n${GN}=======================================${CL}"
    echo -e "    💿 ${GN}Starting ISO conversion...${CL}"
    echo -e "${GN}=======================================${CL}\n"


    "$CONVERTER/convert.sh" wim "$UUP_FOLDER" 1


    ISO_FILE=$(find "$TMP_DIR" "$CONVERTER" "$UUP_FOLDER" -maxdepth 1 -iname "*.iso" | head -n1)

    if [[ -f "$ISO_FILE" ]]; then
        mv "$ISO_FILE" "$OUT_DIR/"
        msg_ok "$(translate "ISO created successfully:") $OUT_DIR/$(basename "$ISO_FILE")"
        msg_ok "$(translate "Cleaning temporary files...")"
        
        if [[ "$CLEAN_ALL" == true ]]; then
            rm -rf "$TMP_DIR" "$CONVERTER"
        else
            [[ -d "$TMP_DIR" ]] && rm -rf "$TMP_DIR"
            [[ -d "$CONVERTER" ]] && rm -rf "$CONVERTER"
        fi

        export OS_TYPE="windows"
        export LANGUAGE=C
        export LANG=C
        export LC_ALL=C
        load_language
        initialize_cache
        msg_success "$(translate "Press Enter to return to menu...")"
        read -r
    else
        msg_warn "$(translate "No ISO was generated.")"
        rm -rf "$TMP_DIR" "$CONVERTER"
        export LANGUAGE=C
        export LANG=C
        export LC_ALL=C
        load_language
        initialize_cache
        msg_success "$(translate "Press Enter to return to menu...")"
        read -r
        return 1
    fi
}

run_uupdump_creator