#!/usr/bin/env bash

stty -echo

INTERVAL=3

trap 'stty echo; exit' INT EXIT

print_header() {
    echo "+----------------------------------------------------+--------------+----------+----------+------------------------+"
    printf "| %-50s | %-12s | %-8s | %-8s | %-22s |\n" "NAME" "CONTAINER ID" "CPU %" "MEM %" "MEM USAGE / MEM LIMIT"
    echo "+----------------------------------------------------+--------------+----------+----------+------------------------+"
}

print_container_info() {
    local container_info
    local container_name
    local container_id
    local cpu_perc
    local mem_perc
    local mem_usage

    container_info="$1"
    container_name=$(echo "$container_info" | cut -f1)
    container_id=$(echo "$container_info" | cut -f2)
    cpu_perc=$(echo "$container_info" | cut -f3)
    mem_perc=$(echo "$container_info" | cut -f4)
    mem_usage=$(echo "$container_info" | cut -f5)


print_container_info() {
    local container_info
    local container_name
    local container_id
    local cpu_perc
    local mem_perc
    local mem_usage

    container_info="$1"
    container_name=$(echo "$container_info" | cut -f1)
    container_id=$(echo "$container_info" | cut -f2)
    cpu_perc=$(echo "$container_info" | cut -f3)
    mem_perc=$(echo "$container_info" | cut -f4)
    mem_usage=$(echo "$container_info" | cut -f5)

    printf "| %-50s | %-12s | %-8s | %-8s | %-22s |\n" "$container_name" "$container_id" "$cpu_perc" "$mem_perc" "$mem_usage"
}

}

while true; do
    DOCKER_STATS=$(docker stats --no-stream --format "{{.Name}}\t{{.ID}}\t{{.CPUPerc}}\t{{.MemPerc}}\t{{.MemUsage}}")

    clear

    if [[ -n "$DOCKER_STATS" ]]; then
        print_header

        while IFS= read -r line; do
            print_container_info "$(echo "$line" | awk '{gsub(/\//, " "); print}')"
        done <<< "$DOCKER_STATS"

        echo "+----------------------------------------------------+--------------+----------+----------+------------------------+"
    else
        echo "No active containers found"
        break
    fi

    sleep $INTERVAL
done