#!/bin/bash

# Script: show
# Purpose: Reads commands line-by-line from a specified file (defaulting to 'show-it.txt')
# and executes each one.

# --- Configuration ---
COMMAND_FILE="${1:-show-it}" 
SKIP_COMMENT_LINES=true
PAUSE_MARKER="---PAUSE---"

# --- Execution ---

# Check if the command file exists
if [ ! -f "$COMMAND_FILE" ]; then
    echo "Error: Command file not found at '$COMMAND_FILE'" >&2
    exit 1
fi

#echo "--- START: Executing commands from $COMMAND_FILE ---"

# Read the file line by line
while IFS= read -r command_line
do
    # Trim leading and trailing whitespace
    command_line=$(echo "$command_line" | xargs)

    # Skip empty lines
    if [ -z "$command_line" ]; then
        continue
    fi

    # Check for the pause marker
    if [ "$command_line" = "$PAUSE_MARKER" ]; then
        #echo ""
        #echo "========== PAUSE =========="
        # Wait for the user to press ENTER, reading explicitly from the terminal
        read -r -p "waiting... (press enter)" < /dev/tty
        #echo "==========================="
        continue
    fi
    
    # Skip lines starting with # if enabled (no logging for cleaner output)
    if $SKIP_COMMENT_LINES && [[ "$command_line" =~ ^# ]]; then
        continue
    fi

    # --- Less Verbose Execution Block ---
    #echo ""
    # Print the command line clearly before execution
    #echo "\$ $command_line"

    # Execute the command line
    eval "$command_line"

    # Only report non-zero (failure) exit status
    EXIT_STATUS=$?
    if [ $EXIT_STATUS -ne 0 ]; then
        echo "!!! COMMAND FAILED (Status $EXIT_STATUS) !!!" >&2
    fi
    # --- End Execution Block ---

done < "$COMMAND_FILE"

#echo ""
#echo "--- END: Script execution complete ---"