#!/bin/bash

# Start the process.
echo "Consolidating..."

# Check for input:
# If the user provides any arguments, store those as the list of file extensions to look for.
# If no arguments are given, leave extensions array empty to let the regex pattern search for everything.
if [ $# -gt 0 ]; then
  echo "$# arguments entered"
  EXTENSIONS=()
  for var in $@
  do
    # Strip the . from the given extension if user gives the extension with a period (like .md)
    var=${var/"."/}
    EXTENSIONS+=("${var}")
  done
else
  echo "0 arguments entered. Searching all files"
  EXTENSIONS=()
fi
echo ${EXTENSIONS[@]}

# Prepare a temporary file:
# Create a temporary file that will hold patterns from the ".gitignore" file.

# Read the .gitignore file:
# If the ".gitignore" file is present, read it and pull out lines that are not comments or blank.
# Store these patterns in the temporary file.

# Create an output file:
# Get the current date and time, and create an output file named using this timestamp.

### Find files:

# The regex pattern starts with '.*', which searches for any matching characters.
# '.' is a wildcard, while '*' means match as many occurrences of the preceding char.
# '\.' escapes the '.' special char to search for the actual char.
# () is a capturing group. The | character is an OR operator
# '$' indicates the preceding string should be followed by the end of line
if [ ${#EXTENSIONS[@]} -gt 0 ]; then
  EXTENSIONS_PATTERN=$(printf '\\|%s' "${EXTENSIONS[@]}")
  REGEX_EXPRESSION=".*\.\($EXTENSIONS_PATTERN\)$"
else
  REGEX_EXPRESSION=".*$"
fi
echo "Regex Expression: $REGEX_EXPRESSION"
# Look for all files in the current directory and its subdirectories,
# excluding the ".gitignore" file itself.
find . -regex $REGEX_EXPRESSION
# Filter these files based on the specified extensions.
# Exclude any files that appear to be binary.
# Exclude any files that match patterns listed in the ".gitignore".

# Process each file:
# For each file that matches the criteria:
# - Write a header to the output file that includes the filename.
# - Add the content of the file to the output file.
# - Finish with a closing code block marker.

# Clean up:
# Delete the temporary file holding the patterns from the ".gitignore".

# Complete the process:
# Inform the user that the operation is complete and let them know where the consolidated output has been saved.
echo "Consolidation complete! See your output file at: "