#!/usr/bin/env node
import fs from 'fs';
import path from 'path';

function readFile(p) {
  return fs.readFileSync(path.resolve(p), 'utf8');
}

const base = readFile('./backend/scripts/create-bisaya-course.js');
const bisaya = readFile('./backend/scripts/bisaya-course-plan-24-43.js');

function extractLessons(text) {
  const lessons = new Map();
  const re = /\{[\s\S]*?num:\s*(\d+),[\s\S]*?title:\s*'([^']+)'[\s\S]*?\}/g;
  let m;
  while ((m = re.exec(text))) {
    const num = Number(m[1]);
    const title = m[2];
    if (num >= 1 && num <= 30) lessons.set(num, title);
  }
  return lessons;
}

function extractCorePatternsForTitle(title, text) {
  // Try to find 'title': { ... corePatterns: [ ... ] }
  const escTitle = title.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
  const re = new RegExp("'" + escTitle + "'\\s*:\\s*\\{[\\s\\S]*?corePatterns\\s*:\\s*\\[([\\s\\S]*?)\\]", 'm');
  const m = re.exec(text);
  if (!m) return null;
  const inside = m[1];
  // Count entries: either objects { target: ... } or string entries
  const lines = inside.split(/\r?\n/).map(l => l.trim()).filter(l => l.length > 0);
  let count = 0;
  for (const ln of lines) {
    if (ln.startsWith('{') || ln.startsWith("'") || ln.startsWith('"')) count++;
  }
  return count;
}

const lessons = extractLessons(base + '\n' + bisaya);
const results = [];
for (let i = 1; i <= 30; i++) {
  const title = lessons.get(i);
  if (!title) {
    results.push({ num: i, title: null, count: 0, note: 'title not found' });
    continue;
  }
  let count = extractCorePatternsForTitle(title, base);
  let source = 'create-bisaya-course.js';
  if (count === null) {
    count = extractCorePatternsForTitle(title, bisaya);
    source = 'bisaya-course-plan-24-43.js';
  }
  if (count === null) {
    // try relationship anchor
    const relText = bisaya;
    count = extractCorePatternsForTitle(title, relText);
    source = 'bisaya-course-plan-24-43.js';
  }
  if (count === null) {
    results.push({ num: i, title, count: 0, note: 'corePatterns not found' });
  } else {
    results.push({ num: i, title, count, source });
  }
}

let total = 0;
for (const r of results) {
  total += r.count || 0;
}

console.log('Core pattern counts for lessons 1..30:');
results.forEach(r => {
  console.log(`${r.num}. ${r.title || '<missing>'} -> ${r.count} ${r.source ? '('+r.source+')' : ''} ${r.note?'- '+r.note:''}`);
});
console.log('---');
console.log('Total core patterns (1..30):', total);