#!/bin/bash

appInstallMenu() {
    while true; do
        isHeader "App Categories"
        echo ""
        isNotice "Loading application categories..."
        echo ""
        
        local menu_categories=()
        declare -A category_app_data
        
        for category_app_dir in "$install_containers_dir"/*/; do
            if [ -d "$category_app_dir" ]; then
                local category_config_file="$category_app_dir/$(basename "$category_app_dir").config"
                
                if [ -f "$category_config_file" ]; then
                    source "$category_config_file"
                    local category_app_name=$(basename "$category_app_dir")
                    local category_app_category=$(grep -Po "CFG_${category_app_name^^}_CATEGORY=\"[^\"]*\"" "$category_config_file" 2>/dev/null | sed "s/.*CATEGORY=\"\([^\"]*\)\".*/\1/")
                    local category_app_title=$(grep -Po "CFG_${category_app_name^^}_TITLE=\"[^\"]*\"" "$category_config_file" 2>/dev/null | sed "s/.*TITLE=\"\([^\"]*\)\".*/\1/")
                    local category_app_description=$(grep -Po "CFG_${category_app_name^^}_DESCRIPTION=\"[^\"]*\"" "$category_config_file" 2>/dev/null | sed "s/.*DESCRIPTION=\"\([^\"]*\)\".*/\1/")
            
                    if [ -n "$category_app_name" ] && [ -n "$category_app_category" ]; then
                        if [[ ! " ${menu_categories[@]} " =~ " ${category_app_category} " ]]; then
                            menu_categories+=("$category_app_category")
                        fi
                        
                        local actions_var="CFG_${category_app_name^^}_ACTIONS"
                        local available_actions="${!actions_var}"
                        category_app_data["$category_app_name"]="$category_app_category|$category_app_title|$category_app_description|$available_actions"
                    fi
                fi
            fi
        done
        
        IFS=$'\n' sorted_menu_categories=($(sort <<<"${menu_categories[*]}"))
        unset IFS
        
        for i in "${!sorted_menu_categories[@]}"; do
            local capitalized_category=$(echo "${sorted_menu_categories[$i]}" | awk '{print toupper(substr($0, 1, 1)) tolower(substr($0, 2))}')
            isOption "$((i + 1)). ${capitalized_category}"
        done
        echo ""
        isOption "x. Exit"
        echo ""
        isQuestion "Please select an option (1-${#sorted_menu_categories[@]} or 'x' to exit): "
        read -p "" choice

        if [[ "$choice" =~ ^[1-9][0-9]*$ ]] && [ "$choice" -le "${#sorted_menu_categories[@]}" ]; then
            local selected_category="${sorted_menu_categories[$((choice - 1))]}"
            local capitalized_category=$(echo "${selected_category}" | awk '{print toupper(substr($0, 1, 1)) tolower(substr($0, 2))}')
            showInstructions;
            isHeader "${capitalized_category}"

            local app_list=()
            local user_actions=()  # Store user inputs for each app
            
            # Build app list from stored app_data (no file reading!)
            for category_app_name in "${!category_app_data[@]}"; do
                local stored_data="${category_app_data[$category_app_name]}"
                IFS='|' read -r category_app_category category_app_title category_app_description actions <<< "$stored_data"
                
                if [[ "$category_app_category" == "$selected_category" ]]; then
                    app_list+=("$category_app_name:$category_app_title:$category_app_description:$actions")
                fi
            done

            if [ ${#app_list[@]} -eq 0 ]; then
                isNotice "No applications found in category '$selected_category'!"
                continue
            fi

            # Show each app on single line and collect input
            for app_entry in "${app_list[@]}"; do
                IFS=':' read -r app_name title description actions <<< "$app_entry"

                # Extract first letters from actions and format with commas
                actions_display=$(echo "$actions" | tr '|' '\n' | cut -c1 | paste -sd, - | sed 's/,$//')

                isQuestion "$title - $description [$actions_display] : "
                read -p "" app_input

                if [ -n "$app_input" ]; then
                    user_actions+=("$app_name:$app_input")
                fi
            done

            if [ ${#user_actions[@]} -gt 0 ]; then
                echo ""
                isNotice "Processing actions..."
                for action_pair in "${user_actions[@]}"; do
                    IFS=':' read -r app_name user_input <<< "$action_pair"
                    
                    if [ -z "$app_name" ] || [ -z "$user_input" ]; then
                        continue
                    fi
                    
                    isNotice "Processing app: $app_name with actions: $user_input"
                    
                    # Set app variable with complete user input
                    declare -g "${app_name}=${user_input}"
                    
                    # Call install function once with all actions
                    local install_func="install${app_name^}"
                    
                    if declare -f "$install_func" > /dev/null; then
                        "$install_func"
                    else
                        isNotice "Warning: Function '$install_func' not found."
                    fi
                    
                    # Clean up after execution
                    unset "${app_name}"
                done
                
                endStart
            else
                isNotice "No actions entered."
            fi

            elif [[ "$choice" == "x" ]]; then
                isNotice "Exiting..."
            else
                isNotice "Invalid selection. Please choose a valid category or 'x' to exit."
            fi

    done
}