/* eslint-disable */
const fs = require('fs');
const path = require('path');

function walkDir(dir, callback) {
    if (!fs.existsSync(dir)) return;
    fs.readdirSync(dir).forEach(f => {
        const dirPath = path.join(dir, f);
        const isDirectory = fs.statSync(dirPath).isDirectory();
        if (isDirectory) {
            walkDir(dirPath, callback);
        } else if (dirPath.endsWith('.tsx')) {
            callback(dirPath);
        }
    });
}

const appFiles = [];
const componentsFiles = [];

walkDir('app', f => appFiles.push(f));
walkDir('components', f => componentsFiles.push(f));

const allFiles = [...appFiles, ...componentsFiles];
const results = {};

allFiles.forEach(file => {
    const content = fs.readFileSync(file, 'utf8');
    const lines = content.split('\n');
    const headings = [];
    
    lines.forEach((line, index) => {
        const regex = /<h([1-6])[\s>]/g;
        let match;
        while ((match = regex.exec(line)) !== null) {
            headings.push({ level: parseInt(match[1]), line: index + 1, content: line.trim() });
        }
    });
    
    if (headings.length > 0 || file.endsWith('page.tsx')) {
        results[file] = headings;
    }
});

// Analysis
console.log("=== HEADINGS AUDIT ===");

// 1. Pages with >1 H1
console.log("\n1. Strony z więcej niż jednym <h1>:");
let foundMultipleH1 = false;
for (const [file, headings] of Object.entries(results)) {
    if (file.includes('page.tsx')) {
        const h1s = headings.filter(h => h.level === 1);
        if (h1s.length > 1) {
            console.log(`- ${file} (Liczba <h1>: ${h1s.length})`);
            foundMultipleH1 = true;
        }
    }
}
if (!foundMultipleH1) console.log("Brak.");

// 2. Pages with 0 H1
console.log("\n2. Strony (page.tsx) bez <h1>:");
let foundZeroH1 = false;
for (const [file, headings] of Object.entries(results)) {
    if (file.includes('page.tsx') && !file.includes('api/')) { // ignoring api if any
        const h1s = headings.filter(h => h.level === 1);
        if (h1s.length === 0) {
            console.log(`- ${file}`);
            foundZeroH1 = true;
        }
    }
}
if (!foundZeroH1) console.log("Brak.");

// 3. Components rendering H1
console.log("\n3. Komponenty współdzielone (w components/) z <h1>:");
let foundComponentH1 = false;
for (const [file, headings] of Object.entries(results)) {
    if (file.startsWith('components/')) {
        const h1s = headings.filter(h => h.level === 1);
        if (h1s.length > 0) {
            console.log(`- ${file} (${h1s.length} wystąpień <h1>)`);
            foundComponentH1 = true;
        }
    }
}
if (!foundComponentH1) console.log("Brak.");

// 4. Heading Skips
console.log("\n4. Skoki poziomów nagłówków w plikach:");
let foundSkips = false;
for (const [file, headings] of Object.entries(results)) {
    if (headings.length === 0) continue;
    
    let currentLevel = null;
    
    for (const h of headings) {
        if (currentLevel !== null) {
            // A skip happens if the new level is strictly greater than currentLevel + 1
            if (h.level > currentLevel + 1) {
                console.log(`- ${file}: Skok z <h${currentLevel}> na <h${h.level}> w linii ${h.line}`);
                foundSkips = true;
            }
        }
        currentLevel = h.level;
    }
}
if (!foundSkips) console.log("Brak oczywistych skoków.");