#!/usr/bin/env bash
# SPDX-License-Identifier: MIT

# This script checks consistency between the filenames and the page title.
# Usage: ./scripts/wrong-filename.sh

# Output file for recording inconsistencies
OUTPUT_FILE="inconsistent-filenames.txt"
# Remove existing output file (if any)
rm -f "$OUTPUT_FILE"
touch "$OUTPUT_FILE"

IGNORE_LIST=("exclamation mark" "caret" "dollar sign" "tilde" "percent sign" "curly brace" "history expansion" "qm move disk" "umount" "rename" "pacman  d" "pacman  f" "pacman  q" "pacman  r" "pacman  s" "pacman  t" "pacman  u" "parted")

set -e

# Iterate through all Markdown files in the 'pages' directories
find pages* -name '*.md' -type f | while read -r path; do
  # Extract the expected command name from the filename
  COMMAND_NAME_FILE=$(basename "$path" | head -c-4 | sed 's/nix3/nix/' | sed 's/\.fish//' | sed 's/\.js//' | sed 's/\.1//' | tr '-' ' '  | tr '[:upper:]' '[:lower:]')

  # Extract the command name from the first line of the Markdown file
  COMMAND_NAME_PAGE=$(head -n1 "$path" | tail -c+3 | sed 's/--//' | tr '-' ' ' | tr '[:upper:]' '[:lower:]')

  # Check if there is a mismatch between filename and content command names
  if [[ "$COMMAND_NAME_FILE" != "$COMMAND_NAME_PAGE" && ! ${IGNORE_LIST[*]} =~ $COMMAND_NAME_PAGE ]]; then
    echo "Inconsistency found in file: $path: $COMMAND_NAME_PAGE should be $COMMAND_NAME_FILE" >> "$OUTPUT_FILE"
  fi
done