#!/bin/bash
limit=70
WEBHOOK_URL=$(grep -E '^WEBHOOK_URL=' .env | cut -d '=' -f2-)

read -r total_bytes used_bytes avail_bytes usage <<<"$(df -B1 / | awk 'NR==2 {gsub(/%/,"",$5); print $2, $3, $4, $5}')"
free=$((100 - usage))
used_gb=$(awk -v b="$used_bytes" 'BEGIN {printf "%.2f", b/1024/1024/1024}')
total_gb=$(awk -v b="$total_bytes" 'BEGIN {printf "%.2f", b/1024/1024/1024}')
avail_gb=$(awk -v b="$avail_bytes" 'BEGIN {printf "%.2f", b/1024/1024/1024}')

if [ "$usage" -ge "$limit" ]; then
  msgLimit="@here\n**CHECK STOCKAGE :red_circle:**\nLimite autorisé : ${limit}%\nUtilisation actuelle: ${usage}%\nEspace restant: ${free}%\nUtilise / total: ${used_gb} GB / ${total_gb} GB\nDisponible: ${avail_gb} GB\nHeure: $(date)"
  curl -X POST \
    -H "Accept: application/json" \
    -H "Content-Type: application/json; charset=utf-8" \
    -d "{\"content\":\"$msgLimit\"}" \
    "$WEBHOOK_URL"
fi
echo "Espace disponible : ${avail_gb} GB"
echo "Espace utilise / espace total : ${used_gb} GB / ${total_gb} GB"
echo "Name: ${HOSTNAME}"