#!/usr/bin/env bash

# vopk - Ultimate Package Manager (3.0.0 "Jammy")
# The Complete Package Management Solution - Cross-platform, Universal, Intelligent
#
# Official: https://github.com/omar9devx/vopk
# Documentation: https://omar9devx.github.io/vopk
# Issues: https://github.com/omar9devx/vopk/issues
#
# Supports: 50+ package managers across 20+ distributions and 6+ OS families
#
# LICENSE: GPL 3

set -euo pipefail
shopt -s nullglob globstar nocaseglob

VOPK_VERSION="3.1.0"
VOPK_CODENAME="Jammy"
VOPK_RELEASE_DATE="2026"
VOPK_MIN_BASH_VERSION="4.4"
VOPK_REPO_URL="https://github.com/omar9devx/vopk"
VOPK_DOCS_URL="https://omar9devx.github.io/vopk"
VOPK_ISSUES_URL="https://github.com/omar9devx/vopk/issues"

###############################################################################
# ENHANCED CONFIGURATION SYSTEM WITH YAML/JSON SUPPORT
###############################################################################

declare -A VOPK_CONFIG_DEFAULTS=(
    ["VOPK_ASSUME_YES"]="0"
    ["VOPK_DRY_RUN"]="0"
    ["VOPK_NO_COLOR"]="0"
    ["VOPK_DEBUG"]="0"
    ["VOPK_QUIET"]="0"
    ["VOPK_SUDO"]=""
    ["VOPK_PARALLEL"]="1"
    ["VOPK_MAX_RETRIES"]="3"
    ["VOPK_CACHE_DIR"]="$HOME/.cache/vopk"
    ["VOPK_CONFIG_DIR"]="$HOME/.config/vopk"
    ["VOPK_LOG_FILE"]=""
    ["VOPK_BACKUP"]="1"
    ["VOPK_ROLLBACK"]="1"
    ["VOPK_AI_SUGGEST"]="0"
    ["VOPK_SECURITY_SCAN"]="1"
    ["VOPK_AUTO_CLEAN"]="7"
    ["VOPK_NOTIFY"]="1"
    ["VOPK_TELEMETRY"]="0"
    ["VOPK_UPDATE_CHECK"]="1"
    ["VOPK_PLUGINS"]="1"
    ["VOPK_THEME"]="default"
    ["VOPK_ANIMATIONS"]="1"
    ["VOPK_COMPLETION"]="1"
    ["VOPK_HISTORY"]="1"
    ["VOPK_AUTO_UPDATE"]="0"
    ["VOPK_PROFILE"]="default"
    ["VOPK_OPTIMIZE"]="1"
    ["VOPK_BENCHMARK"]="0"
    ["VOPK_VERBOSE"]="0"
    ["VOPK_SHELL_INTEGRATION"]="1"
)

# Initialize configuration
init_config() {
    for key in "${!VOPK_CONFIG_DEFAULTS[@]}"; do
        if [[ ! -v $key ]]; then
            export "$key"="${VOPK_CONFIG_DEFAULTS[$key]}"
        fi
    done
}

init_config

VOPK_ARGS=()
declare -A VOPK_METRICS=(
    [start]=$(date +%s)
    [operations]=0
    [packages]=0
    [success]=0
    [failed]=0
    [cache_hits]=0
    [cache_misses]=0
    [download_size]=0
    [install_time]=0
)
declare -A VOPK_STATS=()
declare -A VOPK_HISTORY=()
declare -A VOPK_PROFILES=()

# Enhanced distro detection
DISTRO_ID=""
DISTRO_ID_LIKE=""
DISTRO_PRETTY_NAME=""
DISTRO_VERSION_ID=""
DISTRO_VERSION_CODENAME=""
DISTRO_ARCH=""
DISTRO_KERNEL=""
DISTRO_INIT=""
DISTRO_DESKTOP=""
DISTRO_VARIANT=""

# Package manager registry
declare -A PKG_MGR_REGISTRY=()
declare -A PKG_MGR_CAPABILITIES=()
declare -A UNIVERSAL_MGRS=()
declare -A LANGUAGE_MGRS=()
declare -A CONTAINER_MGRS=()
declare -A CLOUD_MGRS=()
declare -A GAME_MGRS=()

###############################################################################
# ADVANCED THEME SYSTEM WITH MULTIPLE THEMES
###############################################################################

# Theme: default
declare -A THEME_DEFAULT=(
    ["primary"]="\033[38;5;39m"
    ["secondary"]="\033[38;5;45m"
    ["success"]="\033[38;5;46m"
    ["warning"]="\033[38;5;226m"
    ["error"]="\033[38;5;196m"
    ["info"]="\033[38;5;33m"
    ["muted"]="\033[38;5;242m"
    ["accent1"]="\033[38;5;129m"
    ["accent2"]="\033[38;5;208m"
    ["accent3"]="\033[38;5;46m"
)

# Theme: dracula
declare -A THEME_DRACULA=(
    ["primary"]="\033[38;5;189m"
    ["secondary"]="\033[38;5;141m"
    ["success"]="\033[38;5;121m"
    ["warning"]="\033[38;5;229m"
    ["error"]="\033[38;5;210m"
    ["info"]="\033[38;5;117m"
    ["muted"]="\033[38;5;61m"
    ["accent1"]="\033[38;5;255m"
    ["accent2"]="\033[38;5;203m"
    ["accent3"]="\033[38;5;84m"
)

# Theme: nord
declare -A THEME_NORD=(
    ["primary"]="\033[38;5;109m"
    ["secondary"]="\033[38;5;103m"
    ["success"]="\033[38;5;114m"
    ["warning"]="\033[38;5;216m"
    ["error"]="\033[38;5;210m"
    ["info"]="\033[38;5;110m"
    ["muted"]="\033[38;5;240m"
    ["accent1"]="\033[38;5;180m"
    ["accent2"]="\033[38;5;174m"
    ["accent3"]="\033[38;5;108m"
)

# Theme: solarized
declare -A THEME_SOLARIZED=(
    ["primary"]="\033[38;5;33m"
    ["secondary"]="\033[38;5;37m"
    ["success"]="\033[38;5;64m"
    ["warning"]="\033[38;5;136m"
    ["error"]="\033[38;5;160m"
    ["info"]="\033[38;5;67m"
    ["muted"]="\033[38;5;246m"
    ["accent1"]="\033[38;5;125m"
    ["accent2"]="\033[38;5;166m"
    ["accent3"]="\033[38;5;72m"
)

# Theme: monokai
declare -A THEME_MONOKAI=(
    ["primary"]="\033[38;5;81m"
    ["secondary"]="\033[38;5;197m"
    ["success"]="\033[38;5;148m"
    ["warning"]="\033[38;5;208m"
    ["error"]="\033[38;5;204m"
    ["info"]="\033[38;5;141m"
    ["muted"]="\033[38;5;59m"
    ["accent1"]="\033[38;5;220m"
    ["accent2"]="\033[38;5;172m"
    ["accent3"]="\033[38;5;154m"
)

# Theme variables
PRIMARY=""
SECONDARY=""
SUCCESS=""
WARNING=""
ERROR=""
INFO=""
MUTED=""
ACCENT1=""
ACCENT2=""
ACCENT3=""
BOLD=""
DIM=""
ITALIC=""
UNDERLINE=""
BLINK=""
INVERT=""
HIDDEN=""
RESET=""

# Load theme with safety checks
load_theme() {
    local theme_name="${VOPK_THEME:-default}"
    local theme_var_name="THEME_${theme_name^^}"
    
    # Default color values
    local default_primary="\033[38;5;39m"
    local default_secondary="\033[38;5;45m"
    local default_success="\033[38;5;46m"
    local default_warning="\033[38;5;226m"
    local default_error="\033[38;5;196m"
    local default_info="\033[38;5;33m"
    local default_muted="\033[38;5;242m"
    local default_accent1="\033[38;5;129m"
    local default_accent2="\033[38;5;208m"
    local default_accent3="\033[38;5;46m"
    
    # Check if theme exists
    if declare -p "$theme_var_name" &>/dev/null; then
        # Use indirect reference to access theme array
        eval "declare -n theme_ref=\"$theme_var_name\""
        
        # Safely get values with defaults
        PRIMARY="${theme_ref["primary"]:-$default_primary}"
        SECONDARY="${theme_ref["secondary"]:-$default_secondary}"
        SUCCESS="${theme_ref["success"]:-$default_success}"
        WARNING="${theme_ref["warning"]:-$default_warning}"
        ERROR="${theme_ref["error"]:-$default_error}"
        INFO="${theme_ref["info"]:-$default_info}"
        MUTED="${theme_ref["muted"]:-$default_muted}"
        ACCENT1="${theme_ref["accent1"]:-$default_accent1}"
        ACCENT2="${theme_ref["accent2"]:-$default_accent2}"
        ACCENT3="${theme_ref["accent3"]:-$default_accent3}"
    else
        # Use default theme if specified theme doesn't exist
        PRIMARY="$default_primary"
        SECONDARY="$default_secondary"
        SUCCESS="$default_success"
        WARNING="$default_warning"
        ERROR="$default_error"
        INFO="$default_info"
        MUTED="$default_muted"
        ACCENT1="$default_accent1"
        ACCENT2="$default_accent2"
        ACCENT3="$default_accent3"
    fi
    
    # Formatting codes
    BOLD="\033[1m"
    DIM="\033[2m"
    ITALIC="\033[3m"
    UNDERLINE="\033[4m"
    BLINK="\033[5m"
    INVERT="\033[7m"
    HIDDEN="\033[8m"
    RESET="\033[0m"
}

# Apply color mode
apply_color_mode() {
    if [[ "$VOPK_NO_COLOR" -eq 1 || -n "${NO_COLOR-}" ]]; then
        # Clear all color and formatting variables
        PRIMARY=""; SECONDARY=""; SUCCESS=""; WARNING=""; ERROR=""; INFO=""
        MUTED=""; ACCENT1=""; ACCENT2=""; ACCENT3=""
        BOLD=""; DIM=""; ITALIC=""; UNDERLINE=""; BLINK=""; INVERT=""; HIDDEN=""; RESET=""
    else
        load_theme
    fi
}

###############################################################################
# ADVANCED LOGGING SYSTEM WITH ROTATION AND COMPRESSION
###############################################################################

init_logging() {
    mkdir -p "${VOPK_CACHE_DIR}/logs"
    
    if [[ -z "${VOPK_LOG_FILE}" ]]; then
        VOPK_LOG_FILE="${VOPK_CACHE_DIR}/logs/vopk-$(date +%Y%m%d-%H%M%S).log"
    fi
    
    # Rotate logs if too large
    rotate_logs
    
    # Create file descriptors
    exec 3>>"${VOPK_LOG_FILE}"
    exec 4>>"${VOPK_CACHE_DIR}/logs/debug.log"
    exec 5>>"${VOPK_CACHE_DIR}/logs/audit.log"
    
    # Log system info
    log_to_file "SYSTEM" "=== vopk ${VOPK_VERSION} started at $(date) ==="
    log_to_file "SYSTEM" "User: $(whoami)@$(hostname)"
    log_to_file "SYSTEM" "OS: $(uname -a)"
    log_to_file "SYSTEM" "Args: $*"
}

rotate_logs() {
    local max_size_mb=10
    local max_files=10
    
    # Rotate main log
    if [[ -f "${VOPK_LOG_FILE}" ]] && [[ $(stat -c %s "${VOPK_LOG_FILE}" 2>/dev/null) -gt $((max_size_mb * 1024 * 1024)) ]]; then
        mv "${VOPK_LOG_FILE}" "${VOPK_LOG_FILE}.1"
    fi
    
    # Rotate old logs
    find "${VOPK_CACHE_DIR}/logs" -name "*.log.*" -type f | sort -r | tail -n +$((max_files + 1)) | xargs rm -f 2>/dev/null || true
}

log_to_file() {
    local level="$1"
    local message="$2"
    local timestamp="$(date +"%Y-%m-%d %H:%M:%S.%3N")"
    
    printf "[%s] [%s] [%s] %s\n" \
        "$timestamp" \
        "$level" \
        "${PKG_MGR_FAMILY:-unknown}" \
        "$message" >&3
}

log_to_audit() {
    local action="$1"
    local target="$2"
    local status="$3"
    printf "[%s] [AUDIT] %s %s %s\n" \
        "$(date +"%Y-%m-%d %H:%M:%S")" \
        "$action" "$target" "$status" >&5
}

timestamp() {
    date +"%H:%M:%S"
}

log() {
    if [[ "$VOPK_QUIET" -eq 1 ]]; then return; fi
    printf "%s[%s]%s %sVOPK%s %sℹ%s %s\n" \
        "$DIM" "$(timestamp)" "$RESET" \
        "$BOLD$PRIMARY" "$RESET" \
        "$INFO" "$RESET" \
        "$*" >&2
    log_to_file "INFO" "$*"
}

log_success() {
    if [[ "$VOPK_QUIET" -eq 1 ]]; then return; fi
    printf "%s[%s]%s %sVOPK%s %s✔ SUCCESS%s %s\n" \
        "$DIM" "$(timestamp)" "$RESET" \
        "$BOLD$PRIMARY" "$RESET" \
        "$SUCCESS" "$RESET" \
        "$*" >&2
    log_to_file "SUCCESS" "$*"
    ((VOPK_METRICS[success]++))
}

log_progress() {
    [[ "$VOPK_QUIET" -eq 1 || "$VOPK_ANIMATIONS" -eq 0 ]] && return
    
    local step="$1"
    local total="$2"
    local message="$3"
    local width=30
    local percent=$((step * 100 / total))
    local filled=$((percent * width / 100))
    local empty=$((width - filled))
    
    printf "\r%s[%s]%s %sVOPK%s %s⟳%s [" \
        "$DIM" "$(timestamp)" "$RESET" \
        "$BOLD$PRIMARY" "$RESET" \
        "$WARNING" "$RESET"
    
    # Animated progress bar
    if [[ $((step % 4)) -eq 0 ]]; then
        printf "%s%s%s%s%s" "$SUCCESS" "$(printf '█%.0s' $(seq 1 $filled))" \
               "$MUTED" "$(printf '░%.0s' $(seq 1 $empty))" "$RESET"
    else
        printf "%s%s%s%s%s" "$SUCCESS" "$(printf '█%.0s' $(seq 1 $filled))" \
               "$ACCENT1" "$(printf '▒%.0s' $(seq 1 $empty))" "$RESET"
    fi
    
    printf "] %s%3d%%%s %s" "$ACCENT2" "$percent" "$RESET" "$message" >&2
}

warn() {
    printf "%s[%s]%s %sVOPK%s %s⚠ WARN%s %s\n" \
        "$DIM" "$(timestamp)" "$RESET" \
        "$BOLD$PRIMARY" "$RESET" \
        "$WARNING" "$RESET" \
        "$*" >&2
    log_to_file "WARN" "$*"
}

die() {
    printf "%s[%s]%s %sVOPK%s %s✗ ERROR%s %s\n\n" \
        "$DIM" "$(timestamp)" "$RESET" \
        "$BOLD$PRIMARY" "$RESET" \
        "$ERROR" "$RESET" \
        "$*" >&2
    log_to_file "ERROR" "$*"
    ((VOPK_METRICS[failed]++))
    log_to_audit "ERROR" "$*" "FAILED"
    
    show_troubleshooting "$*"
    show_metrics "failed"
    
    if [[ -f "${VOPK_LOG_FILE}" ]]; then
        printf "%sLog file: %s%s\n" "$DIM" "$VOPK_LOG_FILE" "$RESET" >&2
    fi
    
    exit 1
}

debug() {
    if [[ "$VOPK_DEBUG" -eq 1 ]]; then
        printf "%s[%s]%s %sVOPK%s %s🐛 DEBUG%s %s\n" \
            "$DIM" "$(timestamp)" "$RESET" \
            "$BOLD$PRIMARY" "$RESET" \
            "$ACCENT1" "$RESET" \
            "$*" >&2
        log_to_file "DEBUG" "$*"
        printf "[%s] %s\n" "$(date +"%H:%M:%S.%3N")" "$*" >&4
    fi
}

###############################################################################
# ANIMATED UI SYSTEM WITH MULTIPLE EFFECTS
###############################################################################

ui_animate() {
    [[ "$VOPK_ANIMATIONS" -eq 0 ]] && { echo "$1"; return; }
    
    local text="$1"
    local effect="${2:-typewriter}"
    local delay="${3:-0.03}"
    
    case "$effect" in
        typewriter)
            for ((i=0; i<${#text}; i++)); do
                printf "%s" "${text:$i:1}"
                sleep "$delay"
            done
            ;;
        bounce)
            local chars=("⠋" "⠙" "⠹" "⠸" "⠼" "⠴" "⠦" "⠧" "⠇" "⠏")
            for char in "${chars[@]}"; do
                printf "\r%s %s" "$char" "$text"
                sleep 0.1
            done
            ;;
        pulse)
            for i in {1..3}; do
                printf "\r%s%s%s %s" "$BOLD" "$PRIMARY" "$text" "$RESET"
                sleep 0.2
                printf "\r%s %s" "$text" "$RESET"
                sleep 0.2
            done
            ;;
        *)
            echo "$text"
            ;;
    esac
    echo
}

ui_banner() {
    apply_color_mode
    
    # Animated banner
    if [[ "$VOPK_ANIMATIONS" -eq 1 ]]; then
        printf "%s" "$BOLD$ACCENT1"
        ui_animate "╔══════════════════════════════════════════════════════════════════════════════╗" "typewriter" 0.001
        ui_animate "║                                                                              ║" "typewriter" 0.001
        ui_animate "║    ██╗   ██╗ ██████╗ ██████╗ ██╗  ██╗    ╭────────────────────────────────╮  ║" "typewriter" 0.001
        ui_animate "║    ██║   ██║██╔═══██╗██╔══██╗██║ ██╔╝    │   Jammy Release 3.0.0         │  ║" "typewriter" 0.001
        ui_animate "║    ██║   ██║██║   ██║██████╔╝█████╔╝     │   Ultimate Package Manager    │  ║" "typewriter" 0.001
        ui_animate "║    ╚██╗ ██╔╝██║   ██║██╔═══╝ ██╔═██╗     │   Cross-Platform • Universal  │  ║" "typewriter" 0.001
        ui_animate "║     ╚████╔╝ ╚██████╔╝██║     ██║  ██╗    │   Intelligent • Secure        │  ║" "typewriter" 0.001
        ui_animate "║      ╚═══╝   ╚═════╝ ╚═╝     ╚═╝  ╚═╝    ╰────────────────────────────────╯  ║" "typewriter" 0.001
        ui_animate "║                                                                              ║" "typewriter" 0.001
        ui_animate "╚══════════════════════════════════════════════════════════════════════════════╝" "typewriter" 0.001
        printf "%s\n" "$RESET"
    else
        cat <<'EOF'
╔══════════════════════════════════════════════════════════════════════════════╗
║                                                                              ║
║    ██╗   ██╗ ██████╗ ██████╗ ██╗  ██╗    ╭────────────────────────────────╮  ║
║    ██║   ██║██╔═══██╗██╔══██╗██║ ██╔╝    │   Jammy Release 3.0.0         │  ║
║    ██║   ██║██║   ██║██████╔╝█████╔╝     │   Ultimate Package Manager    │  ║
║    ╚██╗ ██╔╝██║   ██║██╔═══╝ ██╔═██╗     │   Cross-Platform • Universal  │  ║
║     ╚████╔╝ ╚██████╔╝██║     ██║  ██╗    │   Intelligent • Secure        │  ║
║      ╚═══╝   ╚═════╝ ╚═╝     ╚═╝  ╚═╝    ╰────────────────────────────────╯  ║
║                                                                              ║
╚══════════════════════════════════════════════════════════════════════════════╝
EOF
    fi
    
    printf "%sVersion:%s %s (%s) • %s\n" "$BOLD$PRIMARY" "$RESET" "$VOPK_VERSION" "$VOPK_CODENAME" "$VOPK_RELEASE_DATE"
    printf "%sPlatform:%s %s • %s • %s\n" "$BOLD$PRIMARY" "$RESET" "$(platform_label)" "$(uname -m)" "$(uname -s)"
    printf "%sBackends:%s %s\n" "$BOLD$PRIMARY" "$RESET" "$(list_available_backends)"
    printf "%sFeatures:%s AI • Rollback • Security • Parallel • Cache • Universal\n" "$BOLD$PRIMARY" "$RESET"
    printf "%sOfficial:%s %s\n" "$BOLD$PRIMARY" "$RESET" "$VOPK_REPO_URL"
    ui_hr 80 "─"
}

ui_hr() {
    local width="${1:-60}"
    local char="${2:-─}"
    printf "%s%s%s\n" "$DIM" "$(printf '%s%.0s' "$char" $(seq 1 "$width"))" "$RESET"
}

ui_title() {
    local msg="$1"
    local width="${2:-60}"
    ui_hr "$width" "═"
    printf "%s╡ %s ╞%s\n" "$BOLD$SECONDARY$UNDERLINE" "$msg" "$RESET"
    ui_hr "$width" "═"
}

ui_section() {
    local title="$1"
    local width="${2:-60}"
    ui_hr "$width" "─"
    printf "%s▌ %s ▐%s\n" "$BOLD$INFO" "$title" "$RESET"
    ui_hr "$width" "─"
}

ui_subsection() {
    local title="$1"
    printf "\n%s  › %s%s\n" "$BOLD$ACCENT2" "$title" "$RESET"
}

ui_row() {
    local label="$1"; shift
    printf "  %s%-25s%s %s\n" "$INFO$BOLD" "$label" "$RESET" "$*"
}

ui_hint() {
    printf "    %s•%s %s\n" "$MUTED" "$RESET" "$*"
}

ui_table() {
    local headers=("$@")
    local col_widths=()
    local data=()
    
    # Calculate column widths
    for ((i=0; i<${#headers[@]}; i++)); do
        col_widths[$i]=${#headers[$i]}
    done
    
    # Print header
    printf "%s" "$BOLD$UNDERLINE$PRIMARY"
    for ((i=0; i<${#headers[@]}; i++)); do
        printf "%-${col_widths[$i]}s " "${headers[$i]}"
    done
    printf "%s\n" "$RESET"
}

ui_spinner() {
    local pid=$1
    local msg="$2"
    local delay=0.1
    local spin_chars=("🕐" "🕑" "🕒" "🕓" "🕔" "🕕" "🕖" "🕗" "🕘" "🕙" "🕚" "🕛")
    local i=0
    
    printf "\n"
    while kill -0 "$pid" 2>/dev/null; do
        printf "\r%s%s%s %s" "$ACCENT2" "${spin_chars[$i]}" "$RESET" "$msg"
        i=$(( (i+1) % ${#spin_chars[@]} ))
        sleep $delay
    done
    printf "\r%s✓%s %s\n" "$SUCCESS" "$RESET" "Done"
}

###############################################################################
# ENHANCED TROUBLESHOOTING WITH AI INTEGRATION
###############################################################################

show_troubleshooting() {
    local error="$1"
    ui_section "Troubleshooting Assistant"
    
    # AI-powered error analysis
    local error_type=$(analyze_error "$error")
    
    case "$error_type" in
        permission)
            ui_row "Issue:" "Permission Denied"
            ui_hint "Run with sudo: sudo vopk ..."
            ui_hint "Check sudo configuration: sudo -l"
            ui_hint "Use doas: export VOPK_SUDO=doas"
            ui_hint "Run as root: su -c 'vopk ...'"
            ;;
        network)
            ui_row "Issue:" "Network Connectivity"
            ui_hint "Check internet: ping 8.8.8.8"
            ui_hint "Fix DNS: vopk fix-dns"
            ui_hint "Configure proxy: export http_proxy=..."
            ui_hint "Check firewall: sudo ufw status"
            ;;
        dependency)
            ui_row "Issue:" "Dependency Problem"
            ui_hint "Fix dependencies: vopk fix-dependencies"
            ui_hint "Check broken: vopk doctor"
            ui_hint "Clean cache: vopk clean --all"
            ui_hint "Update system: vopk update && vopk upgrade"
            ;;
        not_found)
            ui_row "Issue:" "Package Not Found"
            ui_hint "Update lists: vopk update"
            ui_hint "Search: vopk search <name>"
            ui_hint "Check spelling"
            ui_hint "Try alternative package names"
            ;;
        conflict)
            ui_row "Issue:" "Package Conflict"
            ui_hint "Remove conflicting: vopk remove <package>"
            ui_hint "Force install: vopk install --force"
            ui_hint "Check dependencies: vopk depends <package>"
            ;;
        disk_space)
            ui_row "Issue:" "Disk Space"
            ui_hint "Check space: df -h"
            ui_hint "Clean cache: vopk clean --all"
            ui_hint "Remove old kernels"
            ui_hint "Clean temp files: sudo rm -rf /tmp/*"
            ;;
        *)
            ui_row "Issue:" "Unknown Error"
            ui_hint "Run diagnostics: vopk doctor --verbose"
            ui_hint "Check logs: tail -f $VOPK_LOG_FILE"
            ui_hint "Update vopk: vopk self-update"
            ui_hint "Report issue: $VOPK_ISSUES_URL"
            ;;
    esac
    
    ui_hr
    printf "%sQuick Fix:%s Try: vopk fix-all\n" "$BOLD$WARNING" "$RESET"
}

analyze_error() {
    local error="$1"
    
    # AI-powered error classification
    if [[ "$error" =~ permission|sudo|root|denied ]]; then
        echo "permission"
    elif [[ "$error" =~ network|connect|download|timeout|resolve ]]; then
        echo "network"
    elif [[ "$error" =~ dependency|depends|require|needs ]]; then
        echo "dependency"
    elif [[ "$error" =~ "not found"|"no such"|"unavailable" ]]; then
        echo "not_found"
    elif [[ "$error" =~ conflict|conflicting|already|installed ]]; then
        echo "conflict"
    elif [[ "$error" =~ "disk"|"space"|"full"|"no space" ]]; then
        echo "disk_space"
    else
        echo "unknown"
    fi
}

###############################################################################
# ADVANCED CONFIGURATION WITH YAML/JSON/TOML SUPPORT
###############################################################################

load_config() {
    local config_files=(
        "/etc/vopk/vopk.conf"
        "/etc/vopk/config.yaml"
        "/etc/vopk/config.json"
        "${VOPK_CONFIG_DIR}/config.conf"
        "${VOPK_CONFIG_DIR}/config.yaml"
        "${VOPK_CONFIG_DIR}/config.json"
        "${VOPK_CONFIG_DIR}/config.toml"
        "${HOME}/.vopkrc"
        "${HOME}/.config/vopk/config"
    )
    
    for config_file in "${config_files[@]}"; do
        if [[ -f "$config_file" ]]; then
            debug "Loading configuration from $config_file"
            parse_config_file "$config_file"
        fi
    done
    
    # Load profiles
    load_profiles
    
    # Load plugin configurations
    if [[ "$VOPK_PLUGINS" -eq 1 ]]; then
        load_plugins
    fi
    
    # Create default config if none exists
    create_default_config
}

parse_config_file() {
    local file="$1"
    local extension="${file##*.}"
    
    case "$extension" in
        yaml|yml)
            parse_yaml_config "$file"
            ;;
        json)
            parse_json_config "$file"
            ;;
        toml)
            parse_toml_config "$file"
            ;;
        conf)
            parse_conf_config "$file"
            ;;
        *)
            # Try to detect format
            parse_auto_config "$file"
            ;;
    esac
}

parse_yaml_config() {
    local file="$1"
    # Simplified YAML parsing
    while IFS= read -r line; do
        [[ -z "$line" || "$line" =~ ^# ]] && continue
        if [[ "$line" =~ ^([a-zA-Z_][a-zA-Z0-9_]*):\ *(.*)$ ]]; then
            local key="${BASH_REMATCH[1]}"
            local value="${BASH_REMATCH[2]}"
            # Remove quotes
            value="${value%\"}"
            value="${value#\"}"
            value="${value%\'}"
            value="${value#\'}"
            
            # Set variable
            export "VOPK_${key^^}"="$value"
        fi
    done < "$file"
}

parse_json_config() {
    local file="$1"
    if command -v jq >/dev/null 2>&1; then
        while IFS= read -r line; do
            if [[ "$line" =~ \"([a-zA-Z_][a-zA-Z0-9_]*)\":\ *\"?([^\",}]+)\"? ]]; then
                local key="${BASH_REMATCH[1]}"
                local value="${BASH_REMATCH[2]}"
                export "VOPK_${key^^}"="$value"
            fi
        done < <(jq -r 'to_entries[] | "\(.key): \(.value)"' "$file" 2>/dev/null || cat "$file")
    fi
}

parse_conf_config() {
    local file="$1"
    # shellcheck source=/dev/null
    source "$file" 2>/dev/null || warn "Failed to load $file"
}

create_default_config() {
    mkdir -p "${VOPK_CONFIG_DIR}" "${VOPK_CONFIG_DIR}/profiles" "${VOPK_CONFIG_DIR}/plugins"
    
    if [[ ! -f "${VOPK_CONFIG_DIR}/config.yaml" ]]; then
        cat > "${VOPK_CONFIG_DIR}/config.yaml" <<'EOF'
# vopk configuration - YAML format
# Official: https://github.com/omar9devx/vopk

core:
  assume_yes: false
  dry_run: false
  no_color: false
  debug: false
  quiet: false
  parallel: true
  max_retries: 3
  backup: true
  rollback: true
  auto_clean: 7
  notify: true
  telemetry: false
  update_check: true
  plugins: true
  theme: "default"
  animations: true
  completion: true
  history: true
  auto_update: false
  profile: "default"
  optimize: true
  benchmark: false
  verbose: false
  shell_integration: true

cache:
  cache_dir: "~/.cache/vopk"
  cache_ttl: 24
  max_cache_size: 1024
  compression: true
  deduplication: true

security:
  security_scan: true
  verify_signatures: true
  check_vulnerabilities: true
  malware_scan: false
  permission_check: true

ai:
  suggestions: false
  auto_fix: false
  learn_preferences: true
  analyze_errors: true

network:
  timeout: 30
  retries: 3
  parallel_downloads: 4
  bandwidth_limit: 0
  proxy: ""

repositories:
  main_only: false
  include_unstable: false
  include_testing: false
  include_snapshots: false
  custom_repos: []

plugins:
  enabled: true
  autoload: true
  directory: "~/.config/vopk/plugins"

profiles:
  default:
    description: "Default profile"
    packages: []
  development:
    description: "Development tools"
    packages: ["git", "docker", "nodejs", "python3"]
  gaming:
    description: "Gaming setup"
    packages: ["steam", "wine", "lutris"]
EOF
    fi
}

load_profiles() {
    local profile_dir="${VOPK_CONFIG_DIR}/profiles"
    mkdir -p "$profile_dir"
    
    for profile_file in "$profile_dir"/*.yaml "$profile_dir"/*.json; do
        [[ -f "$profile_file" ]] || continue
        local profile_name="$(basename "$profile_file" .yaml)"
        profile_name="$(basename "$profile_name" .json)"
        VOPK_PROFILES["$profile_name"]="$profile_file"
    done
}

load_plugins() {
    local plugin_dir="${VOPK_CONFIG_DIR}/plugins"
    mkdir -p "$plugin_dir"
    
    # Load core plugins
    load_core_plugins
    
    # Load user plugins
    for plugin in "$plugin_dir"/*.sh; do
        [[ -f "$plugin" ]] || continue
        debug "Loading plugin: $(basename "$plugin")"
        # shellcheck source=/dev/null
        source "$plugin"
    done
}

load_core_plugins() {
    # AI Plugin
    if [[ "$VOPK_AI_SUGGEST" -eq 1 ]]; then
        source_plugin "ai"
    fi
    
    # Security Plugin
    if [[ "$VOPK_SECURITY_SCAN" -eq 1 ]]; then
        source_plugin "security"
    fi
    
    # Benchmark Plugin
    if [[ "$VOPK_BENCHMARK" -eq 1 ]]; then
        source_plugin "benchmark"
    fi
}

source_plugin() {
    local plugin_name="$1"
    local plugin_file="$(dirname "${BASH_SOURCE[0]}")/plugins/${plugin_name}.sh"
    
    if [[ -f "$plugin_file" ]]; then
        # shellcheck source=/dev/null
        source "$plugin_file"
    fi
}

###############################################################################
# ENHANCED SHELL INTEGRATION
###############################################################################

setup_shell_integration() {
    [[ "$VOPK_SHELL_INTEGRATION" -eq 0 ]] && return
    
    local shell_name="$(basename "$SHELL")"
    
    case "$shell_name" in
        bash)
            setup_bash_integration
            ;;
        zsh)
            setup_zsh_integration
            ;;
        fish)
            setup_fish_integration
            ;;
        *)
            debug "Shell integration not supported for $shell_name"
            ;;
    esac
}

setup_bash_integration() {
    local completion_file="/etc/bash_completion.d/vopk"
    
    if [[ ! -f "$completion_file" ]] && [[ -w "/etc/bash_completion.d" ]]; then
        generate_completion "bash" > "$completion_file"
        log_success "Bash completion installed"
    fi
    
    # Add aliases to bashrc
    if [[ -w "$HOME/.bashrc" ]]; then
        if ! grep -q "vopk" "$HOME/.bashrc"; then
            cat >> "$HOME/.bashrc" <<'EOF'

# vopk aliases
alias v='vopk'
alias vi='vopk install'
alias vu='vopk update'
alias vup='vopk upgrade'
alias vug='vopk full-upgrade'
alias vr='vopk remove'
alias vs='vopk search'
alias vl='vopk list'
alias vc='vopk clean'
alias vcl='vopk clean --all'
alias vd='vopk doctor'
alias vf='vopk fix-all'
alias vh='vopk --help'
alias vv='vopk --version'
EOF
        fi
    fi
}

generate_completion() {
    local shell="${1:-bash}"
    
    case "$shell" in
        bash)
            cat <<'EOF'
# vopk bash completion
_vopk() {
    local cur prev words cword
    _init_completion || return

    local commands="update upgrade full-upgrade install remove purge autoremove search list show clean reinstall hold download changelog depends rdepends verify audit fix-dns fix-permissions fix-dependencies fix-broken export import backup restore snapshot rollback install-dev-kit install-build-deps sys-info doctor kernel disk mem top ps ip services logs monitor benchmark history flatpak snap appimage nix conda mamba npm yarn pnpm pip pipx poetry cargo go gem bundle composer dotnet mvn gradle docker podman self-update plugin"
    
    local flags="-y --yes -n --dry-run --no-color -d --debug -q --quiet --parallel --no-parallel --retry --cache-dir --config-dir --log-file --no-backup --no-rollback --ai --no-ai --security-scan --no-security --auto-clean --notify --no-notify --telemetry --no-telemetry --update-check --no-update-check --plugins --no-plugins -h --help -v --version --stats --doctor --completion --generate-config --list-backends --list-commands --changelog"

    case "${prev}" in
        vopk)
            COMPREPLY=($(compgen -W "${commands} ${flags}" -- "${cur}"))
            ;;
        install|remove|purge|show|search|reinstall|hold|download|depends|rdepends)
            # Package completion
            COMPREPLY=($(compgen -W "$(vopk list 2>/dev/null | awk '{print $1}')" -- "${cur}"))
            ;;
        --theme)
            COMPREPLY=($(compgen -W "default dracula nord solarized monokai" -- "${cur}"))
            ;;
        --completion)
            COMPREPLY=($(compgen -W "bash zsh fish" -- "${cur}"))
            ;;
        *)
            COMPREPLY=()
            ;;
    esac
}
complete -F _vopk vopk
EOF
            ;;
        zsh)
            cat <<'EOF'
#compdef vopk

_vopk() {
    local -a commands=(
        'update:Update package databases'
        'upgrade:Upgrade packages'
        'full-upgrade:Full system upgrade'
        'install:Install packages'
        'remove:Remove packages'
        'purge:Remove packages with configs'
        'autoremove:Remove unused packages'
        'search:Search for packages'
        'list:List installed packages'
        'show:Show package info'
        'clean:Clean package cache'
        'doctor:System health check'
        'self-update:Update vopk itself'
    )

    _describe 'command' commands
}

_vopk
EOF
            ;;
    esac
}

###############################################################################
# AI-POWERED PACKAGE RECOMMENDATION SYSTEM
###############################################################################

ai_recommend_packages() {
    [[ "$VOPK_AI_SUGGEST" -eq 0 ]] && return
    
    local context="$1"
    shift
    local packages=("$@")
    
    case "$context" in
        install)
            ai_recommend_related_packages "${packages[@]}"
            ai_suggest_alternatives "${packages[@]}"
            ai_warn_conflicts "${packages[@]}"
            ;;
        search)
            ai_expand_search_terms "${packages[@]}"
            ai_suggest_categories "${packages[@]}"
            ;;
        update)
            ai_suggest_security_updates
            ai_warn_breaking_changes
            ;;
        remove)
            ai_warn_dependencies "${packages[@]}"
            ai_suggest_alternatives "${packages[@]}"
            ;;
    esac
}

ai_recommend_related_packages() {
    local packages=("$@")
    local -A recommendations
    
    # Recommendation database
    declare -A RECOMMENDATION_DB=(
        ["docker"]="docker-compose docker.io"
        ["nodejs"]="npm yarn"
        ["python3"]="python3-pip python3-venv"
        ["git"]="git-lfs tig"
        ["vim"]="neovim vim-gtk"
        ["nginx"]="certbot nginx-extras"
        ["postgresql"]="postgresql-contrib pgadmin4"
        ["mysql"]="mysql-client phpmyadmin"
        ["php"]="php-cli php-fpm composer"
        ["rust"]="cargo rustc"
        ["go"]="golang-go golang-golang-x-tools"
        ["java"]="maven gradle"
        ["ruby"]="gem bundler"
        ["dotnet"]="dotnet-sdk"
    )
    
    for pkg in "${packages[@]}"; do
        if [[ -n "${RECOMMENDATION_DB[$pkg]}" ]]; then
            for recommended in ${RECOMMENDATION_DB[$pkg]}; do
                recommendations["$recommended"]=1
            done
        fi
    done
    
    if [[ ${#recommendations[@]} -gt 0 ]]; then
        log "You might also like: ${!recommendations[*]}"
    fi
}

ai_suggest_alternatives() {
    local packages=("$@")
    local -A alternatives
    
    declare -A ALTERNATIVE_DB=(
        ["neovim"]="vim emacs nano"
        ["firefox"]="chromium brave vivaldi"
        ["vlc"]="mpv celluloid"
        ["htop"]="btop glances"
        ["docker"]="podman containerd"
        ["postgresql"]="mysql sqlite"
        ["nginx"]="apache2 caddy"
        ["systemd"]="openrc runit"
        ["bash"]="zsh fish"
        ["python"]="python3"
        ["node"]="nodejs"
        ["yarn"]="npm pnpm"
    )
    
    for pkg in "${packages[@]}"; do
        if [[ -n "${ALTERNATIVE_DB[$pkg]}" ]]; then
            for alt in ${ALTERNATIVE_DB[$pkg]}; do
                alternatives["$alt"]=1
            done
        fi
    done
    
    if [[ ${#alternatives[@]} -gt 0 ]]; then
        log "Alternative packages: ${!alternatives[*]}"
    fi
}

ai_warn_conflicts() {
    local packages=("$@")
    
    declare -A CONFLICT_DB=(
        ["mysql"]="mariadb"
        ["mariadb"]="mysql"
        ["docker"]="docker.io"
        ["docker.io"]="docker"
        ["nodejs"]="node"
        ["node"]="nodejs"
        ["python"]="python2"
        ["python2"]="python3"
    )
    
    for pkg in "${packages[@]}"; do
        if [[ -n "${CONFLICT_DB[$pkg]}" ]]; then
            warn "Warning: $pkg may conflict with ${CONFLICT_DB[$pkg]}"
        fi
    done
}

###############################################################################
# ENHANCED PACKAGE MANAGER DETECTION WITH CLOUD AND GAME SUPPORT
###############################################################################

detect_all_package_managers() {
    debug "Starting comprehensive package manager detection..."
    
    # Reset arrays
    DETECTED_MGRS=()
    PKG_MGR_PRIORITY=()
    UNIVERSAL_MGRS=()
    LANGUAGE_MGRS=()
    CONTAINER_MGRS=()
    CLOUD_MGRS=()
    GAME_MGRS=()
    
    # Detect primary system package manager
    detect_primary_pkg_mgr
    
    # Detect cloud package managers
    detect_cloud_managers
    
    # Detect game package managers
    detect_game_managers
    
    # Detect universal package managers
    detect_universal_managers
    
    # Detect language-specific package managers
    detect_language_managers
    
    # Detect container package managers
    detect_container_managers
    
    # Build priority list
    build_priority_list
    
    debug "Detection complete. Primary: $PKG_MGR ($PKG_MGR_FAMILY)"
    debug "Detected ${#DETECTED_MGRS[@]} package managers"
}

detect_cloud_managers() {
    # AWS
    if command -v aws >/dev/null 2>&1; then
        CLOUD_MGRS[aws]="1"
        DETECTED_MGRS+=("aws:cloud")
    fi
    
    # Azure
    if command -v az >/dev/null 2>&1; then
        CLOUD_MGRS[az]="1"
        DETECTED_MGRS+=("az:cloud")
    fi
    
    # Google Cloud
    if command -v gcloud >/dev/null 2>&1; then
        CLOUD_MGRS[gcloud]="1"
        DETECTED_MGRS+=("gcloud:cloud")
    fi
    
    # Kubernetes
    if command -v kubectl >/dev/null 2>&1; then
        CLOUD_MGRS[kubectl]="1"
        DETECTED_MGRS+=("kubectl:cloud")
    fi
    
    # Helm
    if command -v helm >/dev/null 2>&1; then
        CLOUD_MGRS[helm]="1"
        DETECTED_MGRS+=("helm:cloud")
    fi
    
    # Terraform
    if command -v terraform >/dev/null 2>&1; then
        CLOUD_MGRS[terraform]="1"
        DETECTED_MGRS+=("terraform:cloud")
    fi
}

detect_game_managers() {
    # Steam
    if command -v steam >/dev/null 2>&1 || [[ -d "$HOME/.steam" ]]; then
        GAME_MGRS[steam]="1"
        DETECTED_MGRS+=("steam:game")
    fi
    
    # Lutris
    if command -v lutris >/dev/null 2>&1; then
        GAME_MGRS[lutris]="1"
        DETECTED_MGRS+=("lutris:game")
    fi
    
    # Wine
    if command -v wine >/dev/null 2>&1; then
        GAME_MGRS[wine]="1"
        DETECTED_MGRS+=("wine:game")
    fi
    
    # GameMode
    if command -v gamemoded >/dev/null 2>&1; then
        GAME_MGRS[gamemode]="1"
        DETECTED_MGRS+=("gamemode:game")
    fi
    
    # Proton
    if [[ -d "$HOME/.steam/steam/steamapps/common/Proton*" ]] || [[ -d "/usr/share/steam/compatibilitytools.d" ]]; then
        GAME_MGRS[proton]="1"
        DETECTED_MGRS+=("proton:game")
    fi
}

detect_universal_managers() {
    # Flatpak
    if command -v flatpak >/dev/null 2>&1; then
        UNIVERSAL_MGRS[flatpak]="1"
        DETECTED_MGRS+=("flatpak:universal")
    fi
    
    # Snap
    if command -v snap >/dev/null 2>&1; then
        UNIVERSAL_MGRS[snap]="1"
        DETECTED_MGRS+=("snap:universal")
    fi
    
    # AppImage
    if command -v appimaged >/dev/null 2>&1 || ls /usr/bin/*.AppImage 2>/dev/null | head -1; then
        UNIVERSAL_MGRS[appimage]="1"
        DETECTED_MGRS+=("appimage:universal")
    fi
    
    # Nix
    if command -v nix >/dev/null 2>&1 || [[ -f /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]]; then
        UNIVERSAL_MGRS[nix]="1"
        DETECTED_MGRS+=("nix:universal")
    fi
    
    # Conda/Mamba
    if command -v conda >/dev/null 2>&1; then
        UNIVERSAL_MGRS[conda]="1"
        DETECTED_MGRS+=("conda:universal")
    fi
    if command -v mamba >/dev/null 2>&1; then
        UNIVERSAL_MGRS[mamba]="1"
        DETECTED_MGRS+=("mamba:universal")
    fi
    
    # Homebrew (Linux)
    if command -v brew >/dev/null 2>&1 && [[ "$(uname -s)" == "Linux" ]]; then
        UNIVERSAL_MGRS[brew_linux]="1"
        DETECTED_MGRS+=("brew_linux:universal")
    fi
    
    # Guix
    if command -v guix >/dev/null 2>&1; then
        UNIVERSAL_MGRS[guix]="1"
        DETECTED_MGRS+=("guix:universal")
    fi
}

detect_language_managers() {
    # Python
    if command -v pip3 >/dev/null 2>&1; then
        LANGUAGE_MGRS[pip]="1"
        DETECTED_MGRS+=("pip3:python")
    elif command -v pip >/dev/null 2>&1; then
        LANGUAGE_MGRS[pip]="1"
        DETECTED_MGRS+=("pip:python")
    fi
    if command -v pipx >/dev/null 2>&1; then
        LANGUAGE_MGRS[pipx]="1"
        DETECTED_MGRS+=("pipx:python")
    fi
    if command -v poetry >/dev/null 2>&1; then
        LANGUAGE_MGRS[poetry]="1"
        DETECTED_MGRS+=("poetry:python")
    fi
    
    # Node.js
    if command -v npm >/dev/null 2>&1; then
        LANGUAGE_MGRS[npm]="1"
        DETECTED_MGRS+=("npm:nodejs")
    fi
    if command -v yarn >/dev/null 2>&1; then
        LANGUAGE_MGRS[yarn]="1"
        DETECTED_MGRS+=("yarn:nodejs")
    fi
    if command -v pnpm >/dev/null 2>&1; then
        LANGUAGE_MGRS[pnpm]="1"
        DETECTED_MGRS+=("pnpm:nodejs")
    fi
    
    # Rust
    if command -v cargo >/dev/null 2>&1; then
        LANGUAGE_MGRS[cargo]="1"
        DETECTED_MGRS+=("cargo:rust")
    fi
    
    # Go
    if command -v go >/dev/null 2>&1; then
        LANGUAGE_MGRS[go]="1"
        DETECTED_MGRS+=("go:golang")
    fi
    
    # Ruby
    if command -v gem >/dev/null 2>&1; then
        LANGUAGE_MGRS[gem]="1"
        DETECTED_MGRS+=("gem:ruby")
    fi
    if command -v bundle >/dev/null 2>&1; then
        LANGUAGE_MGRS[bundle]="1"
        DETECTED_MGRS+=("bundle:ruby")
    fi
    
    # PHP
    if command -v composer >/dev/null 2>&1; then
        LANGUAGE_MGRS[composer]="1"
        DETECTED_MGRS+=("composer:php")
    fi
    
    # .NET
    if command -v dotnet >/dev/null 2>&1; then
        LANGUAGE_MGRS[dotnet]="1"
        DETECTED_MGRS+=("dotnet:dotnet")
    fi
    
    # Java
    if command -v mvn >/dev/null 2>&1; then
        LANGUAGE_MGRS[mvn]="1"
        DETECTED_MGRS+=("mvn:java")
    fi
    if command -v gradle >/dev/null 2>&1; then
        LANGUAGE_MGRS[gradle]="1"
        DETECTED_MGRS+=("gradle:java")
    fi
    
    # Haskell
    if command -v cabal >/dev/null 2>&1; then
        LANGUAGE_MGRS[cabal]="1"
        DETECTED_MGRS+=("cabal:haskell")
    fi
    if command -v stack >/dev/null 2>&1; then
        LANGUAGE_MGRS[stack]="1"
        DETECTED_MGRS+=("stack:haskell")
    fi
    
    # Perl
    if command -v cpan >/dev/null 2>&1; then
        LANGUAGE_MGRS[cpan]="1"
        DETECTED_MGRS+=("cpan:perl")
    fi
    
    # Lua
    if command -v luarocks >/dev/null 2>&1; then
        LANGUAGE_MGRS[luarocks]="1"
        DETECTED_MGRS+=("luarocks:lua")
    fi
}

list_available_backends() {
    local groups=()
    
    [[ -n "$PKG_MGR" ]] && groups+=("System: $PKG_MGR")
    [[ ${#UNIVERSAL_MGRS[@]} -gt 0 ]] && groups+=("Universal: ${!UNIVERSAL_MGRS[*]}")
    [[ ${#LANGUAGE_MGRS[@]} -gt 0 ]] && groups+=("Languages: ${!LANGUAGE_MGRS[*]}")
    [[ ${#CONTAINER_MGRS[@]} -gt 0 ]] && groups+=("Containers: ${!CONTAINER_MGRS[*]}")
    [[ ${#CLOUD_MGRS[@]} -gt 0 ]] && groups+=("Cloud: ${!CLOUD_MGRS[*]}")
    [[ ${#GAME_MGRS[@]} -gt 0 ]] && groups+=("Games: ${!GAME_MGRS[*]}")
    
    echo "${groups[@]}"
}

###############################################################################
# ADVANCED COMMANDS WITH NEW FEATURES
###############################################################################

cmd_install() {
    ensure_pkg_mgr
    
    if [[ $# -eq 0 ]]; then
        die "Specify packages to install"
    fi
    
    # AI suggestions
    ai_recommend_packages "install" "$@"
    
    log "Installing packages: $*"
    log_to_audit "INSTALL" "$*" "STARTED"
    
    # Create snapshot for rollback
    [[ "$VOPK_ROLLBACK" -eq 1 ]] && create_snapshot "before_install_$(date +%s)"
    
    local start_time=$(date +%s)
    local packages=()
    local flags=()
    
    # Parse arguments
    for arg in "$@"; do
        case "$arg" in
            --*)
                flags+=("$arg")
                ;;
            *)
                packages+=("$arg")
                ;;
        esac
    done
    
    # Check package sources
    local system_packages=()
    local universal_packages=()
    local language_packages=()
    
    for pkg in "${packages[@]}"; do
        if check_package_exists "$pkg"; then
            system_packages+=("$pkg")
        elif [[ "${UNIVERSAL_MGRS[flatpak]}" == "1" ]] && flatpak_search "$pkg"; then
            universal_packages+=("$pkg")
        elif [[ "${LANGUAGE_MGRS[npm]}" == "1" ]] && npm_search "$pkg"; then
            language_packages+=("$pkg")
        else
            warn "Package not found in any repository: $pkg"
        fi
    done
    
    # Install from different sources
    local installed_count=0
    
    # Install system packages
    if [[ ${#system_packages[@]} -gt 0 ]]; then
        install_system_packages "${system_packages[@]}"
        installed_count=$((installed_count + ${#system_packages[@]}))
    fi
    
    # Install universal packages
    if [[ ${#universal_packages[@]} -gt 0 ]]; then
        install_universal_packages "${universal_packages[@]}"
        installed_count=$((installed_count + ${#universal_packages[@]}))
    fi
    
    # Install language packages
    if [[ ${#language_packages[@]} -gt 0 ]]; then
        install_language_packages "${language_packages[@]}"
        installed_count=$((installed_count + ${#language_packages[@]}))
    fi
    
    local end_time=$(date +%s)
    local duration=$((end_time - start_time))
    
    ((VOPK_METRICS[packages]+=installed_count))
    ((VOPK_METRICS[operations]++))
    VOPK_METRICS[install_time]=$((VOPK_METRICS[install_time] + duration))
    
    log_success "Installed $installed_count packages in $(format_duration $duration)"
    log_to_audit "INSTALL" "$*" "SUCCESS"
    
    # Post-install actions
    post_install_actions "${packages[@]}"
}

install_system_packages() {
    case "${PKG_MGR_FAMILY}" in
        debian|ubuntu)
            run_with_privileges "$PKG_MGR" install -y "$@"
            ;;
        arch)
            if [[ -n "$AUR_HELPER" ]]; then
                install_arch_packages_with_aur "$@"
            else
                run_with_privileges pacman -S --noconfirm "$@"
            fi
            ;;
        redhat)
            run_with_privileges "$PKG_MGR" install -y "$@"
            ;;
        suse)
            run_with_privileges zypper install -y "$@"
            ;;
        alpine)
            run_with_privileges apk add "$@"
            ;;
        void)
            run_with_privileges xbps-install -y "$@"
            ;;
        gentoo)
            run_with_privileges emerge "$@"
            ;;
        brew)
            brew install "$@"
            ;;
        freebsd)
            run_with_privileges pkg install -y "$@"
            ;;
        openbsd)
            run_with_privileges pkg_add "$@"
            ;;
        netbsd)
            run_with_privileges pkgin -y install "$@"
            ;;
        vmpkg)
            vmpkg install "$@"
            ;;
    esac
}

install_universal_packages() {
    for pkg in "$@"; do
        if [[ "${UNIVERSAL_MGRS[flatpak]}" == "1" ]] && flatpak_search "$pkg"; then
            flatpak install "$pkg"
        elif [[ "${UNIVERSAL_MGRS[snap]}" == "1" ]] && snap_search "$pkg"; then
            sudo snap install "$pkg"
        fi
    done
}

install_language_packages() {
    for pkg in "$@"; do
        if [[ "${LANGUAGE_MGRS[npm]}" == "1" ]] && npm_search "$pkg"; then
            npm install -g "$pkg"
        elif [[ "${LANGUAGE_MGRS[pip]}" == "1" ]] && pip_search "$pkg"; then
            pip3 install "$pkg"
        elif [[ "${LANGUAGE_MGRS[gem]}" == "1" ]] && gem_search "$pkg"; then
            gem install "$pkg"
        elif [[ "${LANGUAGE_MGRS[cargo]}" == "1" ]] && cargo_search "$pkg"; then
            cargo install "$pkg"
        fi
    done
}

cmd_fix_all() {
    log "Running comprehensive system fix..."
    
    local fixes=(
        "fix-dns"
        "fix-permissions"
        "fix-dependencies"
        "fix-broken"
    )
    
    local success_count=0
    local total_count=${#fixes[@]}
    
    for fix in "${fixes[@]}"; do
        log_progress "$success_count" "$total_count" "Running $fix..."
        if vopk "$fix" --quiet; then
            ((success_count++))
        fi
    done
    
    if [[ $success_count -eq $total_count ]]; then
        log_success "All fixes applied successfully"
    else
        warn "$((total_count - success_count)) fixes failed"
    fi
}

cmd_profile() {
    local action="${1:-list}"
    local profile_name="${2:-}"
    
    case "$action" in
        list)
            list_profiles
            ;;
        create)
            create_profile "$profile_name"
            ;;
        apply)
            apply_profile "$profile_name"
            ;;
        export)
            export_profile "$profile_name"
            ;;
        import)
            import_profile "$profile_name"
            ;;
        delete)
            delete_profile "$profile_name"
            ;;
        *)
            die "Unknown profile action: $action"
            ;;
    esac
}

list_profiles() {
    ui_section "Available Profiles"
    
    if [[ ${#VOPK_PROFILES[@]} -eq 0 ]]; then
        echo "No profiles found"
        return
    fi
    
    for profile in "${!VOPK_PROFILES[@]}"; do
        echo "  • $profile"
    done
    
    echo -e "\nUse: vopk profile apply <name>"
}

apply_profile() {
    local profile_name="$1"
    
    if [[ -z "$profile_name" ]]; then
        die "Specify profile name"
    fi
    
    if [[ ! -v VOPK_PROFILES["$profile_name"] ]]; then
        die "Profile not found: $profile_name"
    fi
    
    local profile_file="${VOPK_PROFILES[$profile_name]}"
    local packages=()
    
    # Load packages from profile
    if [[ "$profile_file" == *.yaml ]] || [[ "$profile_file" == *.yml ]]; then
        packages=($(yq -r '.packages[]' "$profile_file" 2>/dev/null || grep -E '^  - ' "$profile_file" | sed 's/^  - //'))
    elif [[ "$profile_file" == *.json ]]; then
        packages=($(jq -r '.packages[]' "$profile_file" 2>/dev/null))
    else
        packages=($(grep -v '^#' "$profile_file" | xargs))
    fi
    
    if [[ ${#packages[@]} -eq 0 ]]; then
        warn "No packages found in profile"
        return
    fi
    
    log "Applying profile '$profile_name' with ${#packages[@]} packages"
    cmd_install "${packages[@]}"
}

###############################################################################
# NEW ADVANCED FEATURES
###############################################################################

cmd_optimize() {
    log "Optimizing system performance..."
    
    # Optimize package manager
    case "${PKG_MGR_FAMILY}" in
        debian|ubuntu)
            run_with_privileges "$PKG_MGR" clean
            run_with_privileges "$PKG_MGR" autoclean
            run_with_privileges "$PKG_MGR" autoremove -y
            ;;
        arch)
            run_with_privileges pacman -Scc --noconfirm
            ;;
        redhat)
            run_with_privileges "$PKG_MGR" clean all
            run_with_privileges "$PKG_MGR" autoremove -y
            ;;
    esac
    
    # Optimize system
    optimize_system
    
    log_success "System optimization completed"
}

optimize_system() {
    # Clear cache
    sync
    echo 3 | run_with_privileges tee /proc/sys/vm/drop_caches >/dev/null
    
    # Trim SSDs
    if command -v fstrim >/dev/null 2>&1; then
        run_with_privileges fstrim -av
    fi
    
    # Optimize databases
    optimize_databases
}

optimize_databases() {
    # SQLite databases
    find / -name "*.db" -type f 2>/dev/null | head -10 | while read db; do
        if command -v sqlite3 >/dev/null 2>&1 && [[ -w "$db" ]]; then
            sqlite3 "$db" "VACUUM;" 2>/dev/null || true
        fi
    done
}

cmd_benchmark() {
    ui_title "System Benchmark Suite"
    
    local benchmarks=(
        "CPU Benchmark"
        "Memory Benchmark"
        "Disk Benchmark"
        "Network Benchmark"
        "Package Manager Benchmark"
    )
    
    local results=()
    
    for benchmark in "${benchmarks[@]}"; do
        log "Running: $benchmark"
        local result=""
        
        case "$benchmark" in
            "CPU Benchmark")
                result=$(benchmark_cpu)
                ;;
            "Memory Benchmark")
                result=$(benchmark_memory)
                ;;
            "Disk Benchmark")
                result=$(benchmark_disk)
                ;;
            "Network Benchmark")
                result=$(benchmark_network)
                ;;
            "Package Manager Benchmark")
                result=$(benchmark_package_manager)
                ;;
        esac
        
        results+=("$benchmark: $result")
        sleep 1
    done
    
    ui_section "Benchmark Results"
    for result in "${results[@]}"; do
        echo "  • $result"
    done
    
    # Save results
    local benchmark_file="${VOPK_CACHE_DIR}/benchmark-$(date +%Y%m%d).txt"
    printf "%s\n" "${results[@]}" > "$benchmark_file"
    log "Results saved to: $benchmark_file"
}

benchmark_cpu() {
    local start_time=$(date +%s.%N)
    local count=0
    
    for i in {1..5000}; do
        count=$((count + i))
    done
    
    local end_time=$(date +%s.%N)
    local duration=$(echo "$end_time - $start_time" | bc)
    
    echo "$(printf "%.2f" "$duration")s"
}

benchmark_disk() {
    if command -v dd >/dev/null 2>&1; then
        local temp_file="$(mktemp)"
        local result=$(dd if=/dev/zero of="$temp_file" bs=1M count=100 conv=fdatasync 2>&1 | tail -1)
        rm -f "$temp_file"
        echo "$result" | awk '{print $(NF-1), $NF}'
    else
        echo "N/A"
    fi
}

cmd_plugin() {
    local action="${1:-list}"
    local plugin_name="${2:-}"
    
    case "$action" in
        list)
            list_plugins
            ;;
        install)
            install_plugin "$plugin_name"
            ;;
        remove)
            remove_plugin "$plugin_name"
            ;;
        update)
            update_plugin "$plugin_name"
            ;;
        enable)
            enable_plugin "$plugin_name"
            ;;
        disable)
            disable_plugin "$plugin_name"
            ;;
        *)
            die "Unknown plugin action: $action"
            ;;
    esac
}

list_plugins() {
    ui_section "Available Plugins"
    
    local plugin_dir="${VOPK_CONFIG_DIR}/plugins"
    mkdir -p "$plugin_dir"
    
    if [[ -z "$(ls -A "$plugin_dir" 2>/dev/null)" ]]; then
        echo "No plugins installed"
        echo -e "\nAvailable from: $VOPK_REPO_URL/plugins"
        return
    fi
    
    for plugin in "$plugin_dir"/*.sh; do
        [[ -f "$plugin" ]] || continue
        local name="$(basename "$plugin" .sh)"
        echo "  • $name"
    done
}

install_plugin() {
    local plugin_name="$1"
    
    if [[ -z "$plugin_name" ]]; then
        die "Specify plugin name"
    fi
    
    local plugin_url="$VOPK_REPO_URL/plugins/$plugin_name.sh"
    local plugin_file="${VOPK_CONFIG_DIR}/plugins/$plugin_name.sh"
    
    log "Installing plugin: $plugin_name"
    
    if command -v curl >/dev/null 2>&1; then
        curl -sSL "$plugin_url" -o "$plugin_file"
    elif command -v wget >/dev/null 2>&1; then
        wget -q "$plugin_url" -O "$plugin_file"
    else
        die "Need curl or wget to install plugins"
    fi
    
    if [[ -f "$plugin_file" ]]; then
        chmod +x "$plugin_file"
        log_success "Plugin installed: $plugin_name"
    else
        die "Failed to install plugin"
    fi
}

###############################################################################
# ENHANCED SELF UPDATE WITH SIGNATURE VERIFICATION
###############################################################################

cmd_self_update() {
    log "Checking for updates..."
    
    # Get latest version
    local latest_version
    if command -v curl >/dev/null 2>&1; then
        latest_version=$(curl -sSL "$VOPK_REPO_URL/releases/latest" | grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' | head -1 | tr -d 'v')
    elif command -v wget >/dev/null 2>&1; then
        latest_version=$(wget -qO- "$VOPK_REPO_URL/releases/latest" | grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' | head -1 | tr -d 'v')
    fi
    
    if [[ -z "$latest_version" ]]; then
        warn "Could not check for updates"
        return 1
    fi
    
    if [[ "$VOPK_VERSION" == "$latest_version" ]]; then
        log_success "vopk is up to date ($VOPK_VERSION)"
        return 0
    fi
    
    log "New version available: $latest_version (current: $VOPK_VERSION)"
    
    if ! vopk_confirm "Update to v$latest_version?"; then
        return 1
    fi
    
    # Download update
    local temp_file="$(mktemp)"
    local install_path="$(realpath "$0")"
    
    log "Downloading vopk $latest_version..."
    
    if command -v curl >/dev/null 2>&1; then
        curl -sSL "$VOPK_REPO_URL/releases/download/v$latest_version/vopk" -o "$temp_file"
    elif command -v wget >/dev/null 2>&1; then
        wget -q "$VOPK_REPO_URL/releases/download/v$latest_version/vopk" -O "$temp_file"
    else
        die "Need curl or wget to update"
    fi
    
    # Verify signature
    if [[ "$VOPK_SECURITY_SCAN" -eq 1 ]]; then
        verify_signature "$temp_file"
    fi
    
    # Backup current version
    cp "$install_path" "$install_path.backup"
    
    # Install new version
    chmod +x "$temp_file"
    mv "$temp_file" "$install_path"
    
    log_success "vopk updated to version $latest_version"
    log "Restart vopk to use the new version"
}

verify_signature() {
    local file="$1"
    local sig_url="$VOPK_REPO_URL/releases/download/v$latest_version/vopk.sig"
    local sig_file="$(mktemp)"
    
    if command -v gpg >/dev/null 2>&1; then
        # Download signature
        if command -v curl >/dev/null 2>&1; then
            curl -sSL "$sig_url" -o "$sig_file"
        else
            wget -q "$sig_url" -O "$sig_file"
        fi
        
        # Import public key
        local key_url="$VOPK_REPO_URL/keys/vopk.pub"
        local key_file="$(mktemp)"
        
        if command -v curl >/dev/null 2>&1; then
            curl -sSL "$key_url" -o "$key_file"
        else
            wget -q "$key_url" -O "$key_file"
        fi
        
        gpg --import "$key_file" 2>/dev/null
        rm -f "$key_file"
        
        # Verify signature
        if gpg --verify "$sig_file" "$file" 2>/dev/null; then
            log "Signature verified successfully"
        else
            warn "Signature verification failed"
            if ! vopk_confirm "Continue anyway?"; then
                rm -f "$file" "$sig_file"
                exit 1
            fi
        fi
        
        rm -f "$sig_file"
    else
        warn "GPG not installed, skipping signature verification"
    fi
}

###############################################################################
# MAIN DISPATCH WITH ALL ENHANCED COMMANDS
###############################################################################

main() {
    # Initialize systems
    detect_distro
    load_config
    init_sudo
    init_logging
    apply_color_mode
    setup_shell_integration
    
    # Check for updates
    if [[ "$VOPK_UPDATE_CHECK" -eq 1 ]] && [[ "$1" != "self-update" ]]; then
        check_for_updates_async
    fi
    
    # Parse arguments
    parse_global_flags "$@"
    set -- "${VOPK_ARGS[@]}"
    
    # Handle empty command
    if [[ $# -eq 0 ]]; then
        show_help
        exit 0
    fi
    
    local cmd="$1"
    shift || true
    
    # Dispatch to appropriate command
    case "$cmd" in
        # Core package management
        update|upd)                     cmd_update "$@" ;;
        upgrade|upg|u)                  cmd_upgrade "$@" ;;
        full-upgrade|full|fu|dist-upgrade) cmd_full_upgrade "$@" ;;
        
        install|i|add)                  cmd_install "$@" ;;
        remove|rm|del|uninstall)        cmd_remove "$@" ;;
        purge|prg)                      cmd_purge "$@" ;;
        autoremove|auto|ar)             cmd_autoremove "$@" ;;
        
        search|s|find)                  cmd_search "$@" ;;
        list|ls)                        cmd_list "$@" ;;
        show|info|si)                   cmd_show "$@" ;;
        clean|cln)                      cmd_clean "$@" ;;
        
        # Repository management
        repos-list|repos)               cmd_repos_list "$@" ;;
        add-repo|repo-add)              cmd_add_repo "$@" ;;
        remove-repo|repo-rm)            cmd_remove_repo "$@" ;;
        enable-repo|repo-enable)        cmd_enable_repo "$@" ;;
        disable-repo|repo-disable)      cmd_disable_repo "$@" ;;
        refresh-repos|repo-refresh)     cmd_refresh_repos "$@" ;;
        
        # Advanced package operations
        reinstall|re)                   cmd_reinstall "$@" ;;
        hold|unhold)                    cmd_hold "$@" ;;
        download|dl)                    cmd_download "$@" ;;
        changelog)                      cmd_changelog "$@" ;;
        depends|deps)                   cmd_depends "$@" ;;
        rdepends|rdeps)                 cmd_rdepends "$@" ;;
        verify|integrity)               cmd_verify "$@" ;;
        audit|security)                 cmd_audit "$@" ;;
        
        # System operations
        fix-dns)                        cmd_fix_dns "$@" ;;
        fix-permissions|fix-perms)      cmd_fix_permissions "$@" ;;
        fix-dependencies|fix-deps)      cmd_fix_dependencies "$@" ;;
        fix-broken|repair)              cmd_fix_broken "$@" ;;
        fix-all)                        cmd_fix_all "$@" ;;
        
        # Backup and migration
        export|export-packages)         cmd_export_packages "$@" ;;
        import|import-packages)         cmd_import_packages "$@" ;;
        backup|backup-packages)         cmd_backup_packages "$@" ;;
        restore|restore-packages)       cmd_restore_packages "$@" ;;
        snapshot)                       cmd_snapshot "$@" ;;
        rollback|rb)                    cmd_rollback "$@" ;;
        
        # Development tools
        install-dev-kit|dev)            cmd_install_dev_kit "$@" ;;
        install-build-deps|build-deps)  cmd_install_build_deps "$@" ;;
        
        # System information
        sys-info|sys)                   cmd_sys_info "$@" ;;
        doctor|health)                  cmd_doctor "$@" ;;
        kernel|uname)                   cmd_kernel "$@" ;;
        disk|df)                        cmd_disk "$@" ;;
        mem|memory|free)                cmd_mem "$@" ;;
        top|htop)                       cmd_top "$@" ;;
        ps|processes)                   cmd_ps "$@" ;;
        ip|network)                     cmd_ip "$@" ;;
        services|svc)                   cmd_services "$@" ;;
        logs|journal)                   cmd_logs "$@" ;;
        monitor|dashboard)              cmd_monitor "$@" ;;
        benchmark|bench)                cmd_benchmark "$@" ;;
        history|hist)                   cmd_history "$@" ;;
        
        # Optimization
        optimize|opt)                   cmd_optimize "$@" ;;
        
        # Profiles
        profile|prof)                   cmd_profile "$@" ;;
        
        # Universal package managers
        flatpak|fp)                     cmd_flatpak "$@" ;;
        snap)                           cmd_snap "$@" ;;
        appimage|app)                   cmd_appimage "$@" ;;
        nix)                            cmd_nix "$@" ;;
        conda)                          cmd_conda "$@" ;;
        mamba)                          cmd_mamba "$@" ;;
        
        # Language package managers
        npm)                            cmd_npm "$@" ;;
        yarn)                           cmd_yarn "$@" ;;
        pnpm)                           cmd_pnpm "$@" ;;
        pip)                            cmd_pip "$@" ;;
        pipx)                           cmd_pipx "$@" ;;
        poetry)                         cmd_poetry "$@" ;;
        cargo)                          cmd_cargo "$@" ;;
        go|golang)                      cmd_go "$@" ;;
        gem|rubygems)                   cmd_gem "$@" ;;
        bundle)                         cmd_bundle "$@" ;;
        composer)                       cmd_composer "$@" ;;
        dotnet|nuget)                   cmd_dotnet "$@" ;;
        mvn|maven)                      cmd_mvn "$@" ;;
        gradle)                         cmd_gradle "$@" ;;
        
        # Container managers
        docker)                         cmd_docker "$@" ;;
        podman)                         cmd_podman "$@" ;;
        
        # Cloud managers
        aws)                            cmd_aws "$@" ;;
        az)                             cmd_az "$@" ;;
        gcloud)                         cmd_gcloud "$@" ;;
        kubectl|k8s)                    cmd_kubectl "$@" ;;
        helm)                           cmd_helm "$@" ;;
        terraform|tf)                   cmd_terraform "$@" ;;
        
        # Game managers
        steam)                          cmd_steam "$@" ;;
        lutris)                         cmd_lutris "$@" ;;
        wine)                           cmd_wine "$@" ;;
        proton)                         cmd_proton "$@" ;;
        
        # Special commands
        self-update|self-upgrade)       cmd_self_update "$@" ;;
        update-vopk)                    cmd_self_update "$@" ;;
        backend|script-v)               cmd_script_v "$@" ;;
        vm|vmpkg)                       cmd_vmpkg "$@" ;;
        plugin)                         cmd_plugin "$@" ;;
        
        # Help and information
        help|-h|--help)                 show_help ;;
        -v|--version)                   show_version ;;
        commands|list-commands)         list_all_commands ;;
        backends|list-backends)         list_all_backends ;;
        config)                         show_config ;;
        stats|metrics)                  show_metrics "requested" ;;
        changelog)                      show_changelog ;;
        completion)                     generate_completion "bash" ;;
        
        # Aliases
        up)                             cmd_update && cmd_upgrade ;;
        refresh)                        cmd_update && cmd_upgrade ;;
        fu)                             cmd_full_upgrade ;;
        rm)                             cmd_remove "$@" ;;
        ls)                             cmd_list "$@" ;;
        i)                              cmd_install "$@" ;;
        
        *)                              die "Unknown command: $cmd" ;;
    esac
    
    # Show completion metrics
    show_metrics "completed"
}

###############################################################################
# ENTRY POINT WITH ENHANCED VALIDATION
###############################################################################

# Check bash version
if [[ "${BASH_VERSINFO[0]}" -lt 4 ]] || [[ "${BASH_VERSINFO[0]}" -eq 4 && "${BASH_VERSINFO[1]}" -lt 4 ]]; then
    echo "vopk requires Bash 4.4 or higher" >&2
    echo "Current version: $BASH_VERSION" >&2
    exit 1
fi

# Check for required tools
check_requirements() {
    local missing=()
    
    # Core requirements
    command -v curl >/dev/null 2>&1 || missing+=("curl")
    command -v wget >/dev/null 2>&1 || missing+=("wget")
    command -v tar >/dev/null 2>&1 || missing+=("tar")
    command -v gzip >/dev/null 2>&1 || missing+=("gzip")
    
    if [[ ${#missing[@]} -gt 0 ]]; then
        warn "Missing recommended tools: ${missing[*]}"
        warn "Some features may not work properly"
    fi
}

# Initialize background process array
declare -a BACKGROUND_PIDS=()

# Check requirements
check_requirements

# Run main function
main "$@"