logging_config.sh

#!/bin/bash

# GPU Performance Testing - Logging Configuration
# Optimized for stable system operation

# Global logging configuration
export LOG_LEVEL="${LOG_LEVEL:-minimal}"  # minimal, standard, verbose
export LOG_TO_FILE="${LOG_TO_FILE:-false}"
export LOG_DIR="${LOG_DIR:-/tmp/gpu_logs}"
export LOG_ROTATE="${LOG_ROTATE:-true}"
export MAX_LOG_SIZE="${MAX_LOG_SIZE:-10M}"

# Initialize logging system
init_logging() {
    case "$LOG_LEVEL" in
        "minimal")
            export ENABLE_CONSOLE_LOG=false
            export ENABLE_FILE_LOG=false
            export ENABLE_ERROR_LOG=true
            ;;
        "standard")
            export ENABLE_CONSOLE_LOG=true
            export ENABLE_FILE_LOG=false
            export ENABLE_ERROR_LOG=true
            ;;
        "verbose")
            export ENABLE_CONSOLE_LOG=true
            export ENABLE_FILE_LOG=true
            export ENABLE_ERROR_LOG=true
            ;;
    esac
    
    # Create log directory if file logging is enabled
    if [[ "$ENABLE_FILE_LOG" == "true" && "$LOG_TO_FILE" == "true" ]]; then
        mkdir -p "$LOG_DIR"
    fi
}

# Optimized logging functions
log_minimal() {
    # Only errors and critical information
    [[ "$ENABLE_ERROR_LOG" == "true" ]] && echo "[ERROR] $*" >&2
}

log_standard() {
    # Essential information only
    [[ "$ENABLE_CONSOLE_LOG" == "true" ]] && echo "$*"
}

log_verbose() {
    # Detailed information
    [[ "$ENABLE_CONSOLE_LOG" == "true" ]] && echo "[VERBOSE] $*"
    [[ "$ENABLE_FILE_LOG" == "true" && "$LOG_TO_FILE" == "true" ]] && echo "[$(date '+%H:%M:%S')] $*" >> "$LOG_DIR/gpu_monitor.log"
}

# Smart echo replacement
smart_echo() {
    case "$LOG_LEVEL" in
        "minimal")
            # Only show critical GPU status
            if [[ "$*" == *"ERROR"* || "$*" == *"CRITICAL"* || "$*" == *"Temperature"* ]]; then
                echo "$*"
            fi
            ;;
        "standard")
            # Show essential monitoring info
            if [[ "$*" != *"VERBOSE"* && "$*" != *"DEBUG"* ]]; then
                echo "$*"
            fi
            ;;
        "verbose")
            # Show everything
            echo "$*"
            ;;
    esac
}

# Efficient GPU status (minimal output)
gpu_status_minimal() {
    # Only show temperature and critical errors
    if command -v sensors &> /dev/null; then
        amd_temp=$(sensors | grep -i "edge" | head -1 | awk '{print $2}' | tr -d '+°C')
        [[ -n "$amd_temp" ]] && echo "GPU: ${amd_temp}°C"
    fi
    
    # NVIDIA minimal check
    if command -v nvidia-smi &> /dev/null; then
        nvidia_temp=$(nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader,nounits 2>/dev/null)
        [[ -n "$nvidia_temp" ]] && echo "NVIDIA: ${nvidia_temp}°C"
    fi
}

# Log rotation for efficiency
rotate_logs() {
    if [[ "$LOG_ROTATE" == "true" && -d "$LOG_DIR" ]]; then
        find "$LOG_DIR" -type f -name "*.log" -size +$MAX_LOG_SIZE -exec truncate -s 0 {} \;
    fi
}

# Export functions for use in other scripts
declare -f smart_echo log_minimal log_standard log_verbose gpu_status_minimal rotate_logs

# Initialize on source
init_logging