paste

#!/usr/bin/env bash

# Check if the terminal supports colors
if tput setaf 1 >/dev/null 2>&1; then
  COLOR_INFO="$(tput setaf 4)"    # Bright Blue for general info
  COLOR_WARN="$(tput setaf 3)"    # Yellow for warnings
  COLOR_SUCCESS="$(tput setaf 2)" # Green for success
  COLOR_RESET="$(tput sgr0)"
else
  COLOR_INFO=""
  COLOR_WARN=""
  COLOR_SUCCESS=""
  COLOR_RESET=""
fi

# Function to print messages with appropriate colors
echoinfo() {
  printf "%s%s%s\n" "$COLOR_INFO" "$1" "$COLOR_RESET" >&2
}

echowarn() {
  printf "%s%s%s\n" "$COLOR_WARN" "$1" "$COLOR_RESET" >&2
}

echosuccess() {
  printf "%s%s%s\n" "$COLOR_SUCCESS" "$1" "$COLOR_RESET" >&2
}

# Display help message
show_help() {
  printf "Usage: %s [OPTION]\n" "$0"
  printf "Capture input (interactively or from a pipe) and echo it back to stdout.\n"
  printf "The input is also saved to /tmp/last_paste for future reference.\n\n"
  printf "Options:\n"
  printf "  -h, --help    Show this help message and exit\n\n"
  printf "Examples:\n"
  printf "  %s              # Capture input interactively (type or paste text)\n" "$0"
  printf "  echo 'Hello' | %s  # Capture input from a pipe\n" "$0"
  printf "  %s < file    # Capture input from a file\n" "$0"
  printf "\nNotes:\n"
  printf "  - If 'bat' is installed, it will be used for input handling.\n"
  printf "  - If no input is provided, the script will exit with a warning.\n"
  printf "  - The output is saved to /tmp/last_paste.\n"
  exit 0
}

# Check for help option
case "$1" in
-h | --help) show_help ;;
esac

# Determine the appropriate cat command
if command -v bat >/dev/null 2>&1; then
  CAT_COMMAND="bat"
else
  CAT_COMMAND="cat"
fi

# Capture input
if [ -t 0 ]; then # Interactive mode
  echoinfo "📋 Enter input and press Enter (Ctrl+D to finish):"
fi

input_content=$($CAT_COMMAND)

if [ -z "$input_content" ]; then
  echowarn "⚠️  No input received!"
  exit 1
fi

# Save input to file and echo it back
output_file="/tmp/last_paste"
printf "%s\n" "$input_content" >"$output_file"

echosuccess "✅ Echoing the input to stdout!"
printf "%s\n" "$input_content"

# Set up LPASTE environment variable and function
export LPASTE_FILE="$output_file"