// wordCount.js -- tiny word-count app in JavaScript.
// Splits a paragraph into words, counts totals, uniques, and top frequencies,
// then emits a JSON summary via jsonStringify.
// Run: bin/calog examples/scripts/apps/wordCount.js

const paragraph =
    "the quick brown fox jumps over the lazy dog " +
    "the dog was not amused and the fox did not care " +
    "the quick fox and the lazy dog became the best of friends";

// Normalize to lowercase and split on any run of non-letters.
const words = paragraph
    .toLowerCase()
    .split(/[^a-z]+/)
    .filter((w) => w.length > 0);

// Tally frequency of each word.
const freq = {};
for (const w of words) {
    freq[w] = (freq[w] || 0) + 1;
}

const uniqueWords = Object.keys(freq);

// Rank words by count (descending), then alphabetically for stable ties.
const ranked = uniqueWords.slice().sort((a, b) => {
    if (freq[b] !== freq[a]) {
        return freq[b] - freq[a];
    }
    return a < b ? -1 : a > b ? 1 : 0;
});

const topFive = ranked.slice(0, 5).map((w) => ({ word: w, count: freq[w] }));

const summary = {
    totalWords: words.length,
    uniqueWords: uniqueWords.length,
    top: topFive,
};

calogPrint(jsonStringify(summary));

calogExit(0);