#!/bin/bash

report_file='/tmp/report_inodes.txt'
trusted_accounts_file='/etc/higher_inodes_accounts.conf'
normal_threshold=30000  # Default threshold
hostname=$(hostname)

# Ensure config file exists
[[ ! -f "$trusted_accounts_file" ]] && touch "$trusted_accounts_file" && chmod 644 "$trusted_accounts_file"

declare -A custom_thresholds

# Load trusted accounts and thresholds
while IFS='=' read -r user threshold || [[ -n "$user" ]]; do
    user=$(echo "$user" | xargs)
    threshold=$(echo "$threshold" | xargs)
    custom_thresholds["$user"]=$threshold
done < "$trusted_accounts_file"

> "$report_file"

# Get cPanel users via WHM API
user_list=$(whmapi1 listaccts | awk -F': ' '/user: / {print $2}')

# Target folders to scan
scan_targets=("mail" "public_html" "tmp")

for user in $user_list; do
    home_path="/home/$user"
    [[ ! -d "$home_path" ]] && continue

    threshold=${custom_thresholds[$user]:-$normal_threshold}
    total_inodes=0
    user_report=()

	for subdir in "${scan_targets[@]}"; do
        target="$home_path/$subdir"
        [[ ! -d "$target" ]] && continue

        while IFS= read -r dir; do
            inode_count=$(find "$dir" -type f 2>/dev/null | wc -l)
            #echo "$dir → $inode_count"   # Esta linea es DEBUG MODE para ver output en pantalla
            total_inodes=$((total_inodes + inode_count))
            if (( inode_count >= threshold )); then
                user_report+=("$dir ($inode_count files)")
            fi
        done < <(find "$target" -maxdepth 3 -type d)
    done

     if (( ${#user_report[@]} > 0 )); then
        [[ -n "${custom_thresholds[$user]}" ]] && label="(custom limit allowed)" || label=""
        {
            echo "$user – $total_inodes inodes $label"
            printf '%s\n' "${user_report[@]}"
            echo ""
        } >> "$report_file"
    fi
done

# Send email only if report has content
[[ -s "$report_file" ]] && mail -s "Inode usage alert – $hostname" sysadmin@sitioshispanos.com < "$report_file"