import { chromium } from 'playwright';
import { readFileSync } from 'fs';

const perlerPath = '/Users/guchen/.hermes/workspace/pindou/src/data/palettes/compiled/perler.json';
const palette = JSON.parse(readFileSync(perlerPath, 'utf-8'));
console.log(`Loaded ${palette.length} colors from perler.json`);

// Pick some distinct colors
const colors = [
  palette.find(c => c.id === 'H01') || palette[0],  // White
  palette.find(c => c.id === 'H05') || palette[4],  // Orange
  palette.find(c => c.id === 'H06') || palette[5],  // Red
  palette.find(c => c.id === 'H17') || palette[16], // Blue
  palette.find(c => c.id === 'H10') || palette[9],  // Green
].filter(Boolean);

console.log('Test colors:', colors.map(c => `${c.id} ${c.nameZh} rgb(${c.rgb.join(',')})`));

// Create a 10x10 test grid with alternating colors
const SIZE = 10;
const grid = [];
const legendMap = new Map();

for (let row = 0; row < SIZE; row++) {
  const rowData = [];
  for (let col = 0; col < SIZE; col++) {
    const colorIdx = (row + col) % colors.length;
    const color = colors[colorIdx];
    rowData.push({ color, row, col });
    
    if (!legendMap.has(color.id)) {
      legendMap.set(color.id, { color, count: 0, symbol: String.fromCharCode(65 + legendMap.size) });
    }
    legendMap.get(color.id).count++;
  }
  grid.push(rowData);
}

const legend = Array.from(legendMap.values());
const totalBeads = SIZE * SIZE;
const usedColors = legend.length;

// Create sessionStorage payload matching processStore format
const storageData = {
  sourceImage: null,
  extractedImage: null,
  canvasWidth: SIZE,
  canvasHeight: SIZE,
  fitMode: 'fit',
  grid,
  legend,
  totalBeads,
  usedColors,
  status: 'done',
};

console.log('Test grid:', SIZE, 'x', SIZE, 'total beads:', totalBeads, 'colors:', usedColors);

const BROWSER = await chromium.launch({ headless: true });
const PAGE = await BROWSER.newPage();

// Capture ALL console output
const logs = [];
PAGE.on('console', msg => logs.push(`[${msg.type()}] ${msg.text()}`));
PAGE.on('pageerror', err => logs.push(`[PAGE_ERROR] ${err.message}`));

const BASE = 'http://localhost:5174/pindou/';

// Inject sessionStorage BEFORE navigating
await PAGE.goto(BASE, { waitUntil: 'domcontentloaded', timeout: 10000 });
await PAGE.evaluate((data) => {
  sessionStorage.setItem('bead-process-state', JSON.stringify(data));
}, storageData);

// Verify it was written
const stored = await PAGE.evaluate(() => sessionStorage.getItem('bead-process-state'));
console.log('sessionStorage written:', stored ? `${stored.length} bytes` : 'FAILED');

// Now navigate to result page
await PAGE.goto(`${BASE}#/pages/result/result`, { waitUntil: 'networkidle', timeout: 15000 });
await PAGE.waitForTimeout(2000);

// Detailed DOM inspection
const domInfo = await PAGE.evaluate(() => {
  const canvasInner = document.querySelector('.canvas-inner');
  const allCanvases = Array.from(document.querySelectorAll('canvas'));
  const emptyState = document.querySelector('.empty-state');
  const patternSection = document.querySelector('.pattern-section');
  const beadPattern = document.querySelector('.bead-pattern');
  const modeSwitcher = document.querySelector('.mode-switcher');
  const infoBar = document.querySelector('.info-bar');
  
  return {
    // Empty state
    emptyStateVisible: !!emptyState && emptyState.offsetParent !== null,
    emptyStateText: emptyState?.textContent?.trim(),
    
    // Pattern section
    patternSectionVisible: !!patternSection && patternSection.offsetParent !== null,
    beadPatternExists: !!beadPattern,
    modeSwitcherText: modeSwitcher?.textContent?.trim(),
    infoBarText: infoBar?.textContent?.trim(),
    
    // Canvas inner
    canvasInnerExists: !!canvasInner,
    canvasInnerHTML: canvasInner?.innerHTML?.substring(0, 300),
    canvasInnerChildCount: canvasInner?.children?.length,
    canvasInnerTagName: canvasInner?.tagName,
    canvasInnerSize: canvasInner ? `${canvasInner.offsetWidth}x${canvasInner.offsetHeight}` : 'N/A',
    
    // All canvases
    canvasCount: allCanvases.length,
    canvases: allCanvases.map(c => ({
      width: c.width,
      height: c.height,
      naturalWidth: c.naturalWidth || c.width,
      naturalHeight: c.naturalHeight || c.height,
      parentClass: c.parentElement?.className,
      parentTag: c.parentElement?.tagName,
      display: getComputedStyle(c).display,
      visibility: getComputedStyle(c).visibility,
    })),
  };
});

console.log('\n=== DOM State ===');
console.log(JSON.stringify(domInfo, null, 2));

// Print ALL console logs
console.log('\n=== All Console Logs ===');
logs.forEach(l => console.log(l));

// Screenshot for visual inspection
await PAGE.screenshot({ path: '/Users/guchen/.openclaw/workspace/pindou-result-debug.png', fullPage: true });
console.log('\nScreenshot saved to pindou-result-debug.png');

await BROWSER.close();