#!/bin/bash

# ╭─────────────────────────────────────────╮
# │ roundbox, rewriten by chatgpt in 2025   │
# │ (replaces old roundbox and multibox)    │
# │                                         │
# │ usage examples:                         │
# │ echo "woot\nwoot" | roundbox            │ 
# │ cat file.txt | roundbox                 │
# │ roundbox "woot\nwoot"                   │
# │                                         │
# │ note: If max line lenght > term width,  │
# │ lines will be truncated                 │
# ╰─────────────────────────────────────────╯

# If there's an argument, use it; otherwise, read from stdin
if [[ -n "$1" ]]; then
  input_text=$(printf "%b" "$1")
else
  input_text=$(cat)
fi

# Normalize tabs
input_text=$(printf "%s" "$input_text" | expand)

# Terminal width logic
term_width=$(tput cols)
max_allowed_length=$(( term_width - 4 ))  # 2 padding + 2 borders

# Truncate long lines and compute max length
max_length=0
trimmed_lines=()
while IFS= read -r line; do
  # Truncate if needed
  if (( ${#line} > max_allowed_length )); then
    line=${line:0:max_allowed_length}
  fi
  trimmed_lines+=("$line")
  (( ${#line} > max_length )) && max_length=${#line}
done <<< "$input_text"

# Top border
echo "╭$(printf '─%.0s' $(seq 1 $((max_length + 2))))╮"

# Boxed lines
for line in "${trimmed_lines[@]}"; do
  padding=$(( max_length - ${#line} ))
  printf "│ %s%*s │\n" "$line" "$padding" ""
done

# Bottom border
echo "╰$(printf '─%.0s' $(seq 1 $((max_length + 2))))╯"