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HTML

              
                <!-- Version 4 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js"></script>
<script defer>
  const dbVersion = 2;

// Track tables and their current hand histories
const tables = new Map(); // tableId -> TableHand

// Global variables
let username = null;
let menuItem = null;
let previousUsername = null;
const initializedDatabases = new Set();

// Constants
const DB_PREFIX = 'PokerHandsDB_';
const STORE_NAME = 'hands';

// Check if we're running in a mobile context
const isMobile = /iPhone|iPad|iPod|Android/i.test(navigator.userAgent);

// Add error handling for script initialization
window.addEventListener('error', function(e) {
  console.error('[PHHS] Global error:', e.message, 'at', e.filename, ':', e.lineno);
});

// Define the debounce helper before using it
function debounce(func, wait) {
  let timeout;
  return function executedFunction(...args) {
    const later = () => {
      clearTimeout(timeout);
      func(...args);
    };
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
  };
}

// Main observer for detecting tables and username changes
const mainObserver = new MutationObserver(
  debounce(async (mutations) => {
    // Try both desktop and mobile selectors for lobby
    let lobbyDiv = isMobile ?
    document.getElementById('SiteMobile') :
    document.querySelector('div#Lobby > div.header > div.title');

    if (!lobbyDiv) {
      return;
    }

    const lobbyTitle = lobbyDiv.textContent;

    // Get username from lobby
    let newUsername = null;
    if (isMobile) {
      // two cases: lobby view or table view
      newUsername = (lobbyTitle.match(/.+ - Logged in as (.+)/) || [])[1]?.trim() ||
      (lobbyTitle.match(/.+ - (.+)/) || [])[1]?.trim() ||
      null;
    } else {
      newUsername = (lobbyTitle.match(/Lobby - (.+) logged in/) || [])[1]?.trim() ||
      null;
    }

    // Update UI if username changed
    if (newUsername !== username) {
      updateUI(newUsername);
      username = newUsername;
    }

    if (!username) {
      for (const [tableId, table] of tables) {
        await saveAndRemoveTable(tableId);
      }
      return;
    }

    // Initialize database if needed
    try {
      await initializeDB(username);
    } catch (error) {
      console.error('[PHHS] Failed to initialize database:', error);
      return;
    }

    // Find active tables
    const tableDivs = Array.from(document.querySelectorAll('div[class="dialog"]:has(> div[class="tablecontent"])'));
    const activeTables = tableDivs
    .map(tableDiv => {
      let currentDiv = tableDiv.nextElementSibling;
      while (currentDiv) {
        if (currentDiv.classList.contains('dialog')) {
          const infotabs = currentDiv.querySelector('div.infotabs');
          if (infotabs) return infotabs;
        }
        currentDiv = currentDiv.nextElementSibling;
      }
      return null;
    })
    .filter(Boolean);

    // Remove closed tables
    for (const [tableId, table] of tables) {
      if (!activeTables.includes(table.div)) {
        await saveAndRemoveTable(tableId);
      }
    }

    // Process active tables
    activeTables.forEach(tableDiv => {
      const infoDiv = tableDiv.querySelector('div.generalinfo > div.memo > pre');
      if (!infoDiv?.textContent) return;

      const tableMatch = infoDiv.textContent.match(/^Table name:\s+(.+)/) ||
            infoDiv.textContent.match(/^Tournament name:\s+(.*)/);

      const typeMatch = infoDiv.textContent.match(/Type:\s+(.+)/);

      if (!tableMatch || !typeMatch) return;

      const tableName = tableMatch[1].trim();
      const tableType = typeMatch[1].trim();
      const tableId = `${tableName} [${tableType}]`;

      // Create new table tracking if it doesn't exist
      if (!tables.has(tableId)) {
        const tableHand = new TableHand(tableId);
        tables.set(tableId, tableHand);
        tableHand.attachTo(tableDiv);
      }
    });
  }, 500)
);

// Helper function to save and remove a table
async function saveAndRemoveTable(tableId) {
  const table = tables.get(tableId);
  if (table) {
    await table.save();
    table.detach();
    tables.delete(tableId);
  }
}

// Function to start observing
const startObserving = () => {
  // Try both desktop and mobile selectors
  const clientDiv = document.getElementById('client_div') ||
  document.getElementById('SiteMobile') ||
  document.querySelector('.site-mobile');

  if (clientDiv) {
    mainObserver.observe(clientDiv, {
      childList: true,
      subtree: true
    });
  } else {
    setTimeout(startObserving, 2000);
  }
};

// Start immediately but also retry if needed
if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', startObserving);
} else {
  startObserving();
}

// Get database name for current user
const getDBName = (username) => `${DB_PREFIX}${username}`;

// Structure for tracking a table's current hand
class TableHand {
  constructor(tableId) {
    this.tableId = tableId;
    this.handNumber = null;
    this.lines = [];
    this.div = null;
    this.observer = null;
  }

  async addLines(text) {
    const handMatch = text.match(/Hand #(\d+-\d+)/);
    if (!handMatch) {
      return;
    }

    const handNumber = handMatch[1];

    if (this.handNumber !== handNumber) {
      await this.save();
      this.handNumber = handNumber;
    }

    this.lines = text
      .split('<br>')
      .map(line => line.trim())
      .filter(line => line);
  }

  async save() {
    if (!username || !this.handNumber) {
      return;
    }
    const filename = `${this.tableId}-${this.handNumber}.txt`;

    try {
      await withDB(username, async (db) => {
        const transaction = db.transaction([STORE_NAME], 'readwrite');
        const store = transaction.objectStore(STORE_NAME);

        await Promise.all([
          new Promise((resolve, reject) => {
            const request = store.put({
              tableId: this.tableId,
              handNumber: this.handNumber,
              content: this.lines.join('\n'),
              contentType: 'text/plain'
            });
            request.onerror = () => reject(request.error);
            request.onsuccess = () => resolve();
          }),
          new Promise((resolve, reject) => {
            transaction.oncomplete = () => resolve();
            transaction.onerror = () => reject(transaction.error);
          })
        ]);
      });
    } catch (error) {
      console.error(`[PHHS] Error saving hand ${filename}:`, error);
    }
    this.handNumber = null;
    this.lines = [];
  }

  attachTo(tableDiv) {
    this.div = tableDiv;
    this.observer = createTableObserver(tableDiv, this.tableId, username);
  }

  detach() {
    if (this.observer) {
      this.observer.disconnect();
      this.observer = null;
    }
    this.div = null;
  }
}

// Create observer for a table's history
function createTableObserver(tableDiv, tableId, username) {
  const historyDiv = tableDiv.querySelector('div.historyinfo > div.memo');
  if (!historyDiv) {
    console.error(`[PHHS] Could not find history div for table ${tableId}`);
    return null;
  }

  const observer = new MutationObserver(async (mutations) => {
    const historyText = historyDiv.innerHTML;
    const tableHand = tables.get(tableId);
    await tableHand.addLines(historyText);
  });

  observer.observe(historyDiv, {
    childList: true,
    characterData: true,
    subtree: true
  });

  return observer;
}

// Helper for creating menu items
const createMenuItem = (id, text, handler) => {
  const item = document.createElement('li');
  item.id = id;
  item.textContent = text;

  $(item).on("touchstart mousedown", function(e) {
    if (!menuItem) {
      menuItem = this;
      return false;
    }
  });

  $(item).on("touchend mouseup", function(e) {
    if (!menuItem) return;
    const wasMenuItem = (this === menuItem);
    $(this).parent().hide();
    menuItem = null;
    if (wasMenuItem) {
      handler();
    }
    return false;
  });

  return item;
};

// Create UI elements
const createUI = () => {
  const accountSpan = document.querySelector('span#AccountMenu');
  if (!accountSpan) {
    console.error('[PHHS] Account menu span not found');
    return null;
  }

  const accountMenu = accountSpan.nextElementSibling;
  if (!accountMenu || accountMenu.tagName !== 'UL') {
    console.error('[PHHS] Account menu ul not found');
    return null;
  }

  const computedStyle = window.getComputedStyle(accountMenu);
  const defaultColor = computedStyle.color;
  const defaultBgColor = computedStyle.backgroundColor;

  // Create Download Hands menu item
  const downloadItem = createMenuItem('AccountDownloadHands', 'Download hand histories...', handleDownload);
  const clearItem = createMenuItem('AccountClearHands', 'Clear hand histories...', handleClear);

  // Set initial styles and add hover effects
  [downloadItem, clearItem].forEach(item => {
    item.style.color = defaultColor;
    item.style.backgroundColor = defaultBgColor;

    // Add hover effects
    item.addEventListener('mouseenter', () => {
      item.style.color = defaultBgColor;
      item.style.backgroundColor = defaultColor;
    });
    item.addEventListener('mouseleave', () => {
      item.style.color = defaultColor;
      item.style.backgroundColor = defaultBgColor;
    });
  });

  // Add items to menu
  accountMenu.appendChild(downloadItem);
  accountMenu.appendChild(clearItem);

  return { downloadButton: downloadItem, clearButton: clearItem };
};

// Remove UI elements
const removeUI = () => {
  const downloadItem = document.getElementById('AccountDownloadHands');
  const clearItem = document.getElementById('AccountClearHands');

  if (downloadItem) downloadItem.remove();
  if (clearItem) clearItem.remove();
};

// Handle download click
const handleDownload = async () => {
  if (!username) {
    console.error('[PHHS] No username available for download');
    return;
  }

  let db = null;
  try {
    const dbName = getDBName(username);

    // Open database
    db = await new Promise((resolve, reject) => {
      const request = indexedDB.open(dbName, dbVersion);
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve(request.result);
    });

    // Check if store exists
    if (!db.objectStoreNames.contains(STORE_NAME)) {
      alert('No hand histories available.');
      return;
    }

    // Get all hands
    const transaction = db.transaction([STORE_NAME], 'readonly');
    const store = transaction.objectStore(STORE_NAME);
    const hands = await new Promise((resolve, reject) => {
      const request = store.getAll();
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve(request.result);
    });

    if (hands.length === 0) {
      alert('No hand histories available.');
      return;
    }

    // Create a file for each table and session.
    // The hand number, e.g., 1234-5, has two parts:
    //   First part: absolute hand number across all tables
    //   Second part: hand number for the current session on a table, starting from 1.
    try {
      const zip = new JSZip();

      // Group hands by table and session
      const sessions = new Map(); // Map<tableId, Map<sessionStart, hands[]>>

      hands.forEach(hand => {
        const { tableId, handNumber } = hand;
        const [absoluteHandNumber, sessionHandNumber] = handNumber.split('-').map(Number);

        if (sessionHandNumber === 1) {
          if (!sessions.has(tableId)) {
            sessions.set(tableId, new Map());
          }
          sessions.get(tableId).set(absoluteHandNumber, []);
        }

        const tableMap = sessions.get(tableId);
        const sessionStart = Math.max(...[...tableMap.keys()].filter(start => start <= absoluteHandNumber));
        tableMap.get(sessionStart).push(hand);
      });

      for (const [tableId, tableSessions] of sessions) {
        for (const [sessionStart, sessionHands] of tableSessions) {
          // Sort hands by absolute hand number
          sessionHands.sort((a, b) => {
            const [aAbs] = a.handNumber.split('-').map(Number);
            const [bAbs] = b.handNumber.split('-').map(Number);
            return aAbs - bAbs;
          });

          // Concatenate hands in a session
          const sessionContent = sessionHands.map(hand => hand.content).join('\n\n');
          const filename = `${tableId} - Session starting ${sessionStart}.txt`;
          zip.file(filename, sessionContent);
        }
      }

      const blob = await zip.generateAsync({
        type: "blob",
        compression: "DEFLATE"
      });

      const url = URL.createObjectURL(blob);
      const a = document.createElement('a');
      a.href = url;
      a.download = `poker_hands_${username}_${new Date().toISOString().split('T')[0]}.zip`;
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);
      URL.revokeObjectURL(url);
    } catch (e) {
      console.error('Error creating zip:', e);
    }

  } catch (error) {
    console.error('[PHHS] Error during download:', error);
  } finally {
    if (db) {
      db.close();
    }
  }
};

// Handle clear click
const handleClear = async () => {
  if (!username) {
    return;
  }

  let db = null;
  try {
    const dbName = getDBName(username);

    // Open database
    db = await new Promise((resolve, reject) => {
      const request = indexedDB.open(dbName, dbVersion);
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve(request.result);
    });

    // Check if store exists
    if (!db.objectStoreNames.contains(STORE_NAME)) {
      alert('No hand histories available.');
      return;
    }

    // Get count and size before confirming
    const transaction = db.transaction([STORE_NAME], 'readonly');
    const store = transaction.objectStore(STORE_NAME);
    const hands = await new Promise((resolve, reject) => {
      const request = store.getAll();
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve(request.result);
    });

    if (hands.length === 0) {
      alert('No hand histories available.');
      return;
    }

    const totalBytes = hands.reduce((sum, hand) => sum + hand.content.length, 0);
    const size = formatSize(totalBytes);

    if (!confirm(`Are you sure you want to clear all stored hands?\n\nThis will delete ${hands.length} hands (${size}).`)) {
      return;
    }

    // Clear all hands
    const clearTransaction = db.transaction([STORE_NAME], 'readwrite');
    const clearStore = clearTransaction.objectStore(STORE_NAME);
    await new Promise((resolve, reject) => {
      const request = clearStore.clear();
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve();
    });
  } catch (error) {
    console.error('Error clearing hands:', error);
  } finally {
    if (db) {
      db.close();
    }
  }
};

// Database helper
const withDB = async (username, callback) => {
  if (!username) {
    console.error('[PHHS] DB operation attempted without username');
    return null;
  }

  let db = null;
  try {
    const dbName = getDBName(username);
    db = await new Promise((resolve, reject) => {
      const request = indexedDB.open(dbName, dbVersion);
      request.onerror = () => reject(request.error);
      request.onsuccess = () => resolve(request.result);
    });
    return await callback(db);
  } catch (error) {
    console.error('[PHHS] Database error:', error);
    throw error;
  } finally {
    if (db) {
      db.close();
    }
  }
};

// Initialize database for a user
const initializeDB = (username) => {
  return new Promise((resolve, reject) => {
    const dbName = getDBName(username);

    const request = indexedDB.open(dbName, dbVersion);

    request.onupgradeneeded = (event) => {
      const db = event.target.result;

      if (event.oldVersion < 1) {
        db.createObjectStore(STORE_NAME, { keyPath: ['tableId', 'handNumber'] });
        return;
      }

      if (event.oldVersion < 2) {
        const transaction = event.target.transaction;
        const oldStore = transaction.objectStore(STORE_NAME);

        oldStore.getAll().onsuccess = (event) => {
          const records = event.target.result;

          // Delete old store
          db.deleteObjectStore(STORE_NAME);

          // Create new store with composite key
          const newStore = db.createObjectStore(STORE_NAME, {
            keyPath: ['tableId', 'handNumber']
          });

          // Migrate each record
          records.forEach(record => {
            // Split out the tableId and handNumber from the filename
            const match = record.filename.match(/(.*)-([^-]+-[^-]+)\.txt$/);

            if (match) {
              const [_, tableId, handNumber] = match;

              newStore.add({
                tableId,
                handNumber,
                content: record.content,
                contentType: record.contentType
              });
            }
          });
        };
      }
    };

    request.onsuccess = () => {
      const db = request.result;
      db.close();
      resolve();
    };

    request.onerror = (event) => {
      console.error('Database initialization error:', event.target.error);
      reject(event.target.error);
    };
  });
};

// Update UI based on username changes
const updateUI = async (newUsername) => {
  if (previousUsername !== newUsername) {
    initializedDatabases.clear();
  }

  // Username changed from null to non-null
  if (!previousUsername && newUsername) {
    const elements = createUI();
    if (elements) {
      const { downloadButton, clearButton } = elements;
      await initializeDB(newUsername);
    }
  }
  // Username changed from non-null to null
  else if (previousUsername && !newUsername) {
    removeUI();
  }
  // Username changed to different user
  else if (previousUsername && newUsername && previousUsername !== newUsername) {
    await initializeDB(newUsername);
  }

  previousUsername = newUsername;
};

// Helper function to format size
const formatSize = (bytes) => {
  if (bytes < 1024) return bytes + ' B';
  if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
  if (bytes < 1024 * 1024 * 1024) return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
  return (bytes / (1024 * 1024 * 1024)).toFixed(1) + ' GB';
};
</script>
              
            
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