parser.ts

import { Stat } from 'obsidian';
import { Item } from 'src/components/types';

export interface FileAccessor {
  isEmbed: boolean;
  target: string;
  stats?: Stat;
}

export function markRangeForDeletion(str: string, range: { start: number; end: number }): string {
  const len = str.length;

  let start = range.start;
  while (start > 0 && str[start - 1] === ' ') start--;

  let end = range.end;
  while (end < len - 1 && str[end + 1] === ' ') end++;

  return str.slice(0, start) + '\u0000'.repeat(end - start) + str.slice(end);
}

export function executeDeletion(str: string) {
  return str.replace(/ *\0+ */g, ' ').trim();
}

export function replaceNewLines(str: string) {
  return str.trim().replace(/(?:\r\n|\n)/g, '<br>');
}

export function replaceBrs(str: string) {
  return str.replace(/<br>/g, '\n').trim();
}

export function indentNewLines(str: string) {
  const useTab = (app.vault as any).getConfig('useTab');
  return str.trim().replace(/(?:\r\n|\n)/g, useTab ? '\n\t' : '\n    ');
}

export function addBlockId(str: string, item: Item) {
  if (!item.data.blockId) return str;

  const lines = str.split(/(?:\r\n|\n)/g);
  lines[0] += ' ^' + item.data.blockId;

  return lines.join('\n');
}

export function removeBlockId(str: string) {
  const lines = str.split(/(?:\r\n|\n)/g);

  lines[0] = lines[0].replace(/\s+\^([a-zA-Z0-9-]+)$/, '');

  return lines.join('\n');
}

export function dedentNewLines(str: string) {
  return str.trim().replace(/(?:\r\n|\n)(?: {4}|\t)/g, '\n');
}

export function parseLaneTitle(str: string) {
  str = replaceBrs(str);

  // Check for tasks query block first
  const queryMatch = str.match(/```tasks\n([\s\S]*?)\n```/);
  let query: string | undefined;
  
  if (queryMatch) {
    query = queryMatch[1].trim();
    // Remove the query block from the title
    str = str.replace(/```tasks\n[\s\S]*?\n```/, '').trim();
  }

  const match = str.match(/^(.*?)\s*\((\d+)\)$/);
  if (match == null) {
    return { title: str, maxItems: 0, query };
  }

  return { title: match[1], maxItems: Number(match[2]), query };
}