// Shared JavaScript across all pages
document.addEventListener('DOMContentLoaded', function() {
    // Initialize the log file upload functionality
    const logFileInput = document.getElementById('logFile');
    
    if (logFileInput) {
        logFileInput.addEventListener('change', handleFileUpload);
    }
    
    // Sample data for demonstration
    updateSampleData();
});

function handleFileUpload(event) {
    const file = event.target.files[0];
    if (!file) return;
    
    const reader = new FileReader();
    reader.onload = function(e) {
        try {
            const logData = JSON.parse(e.target.result);
            processLogData(logData);
        } catch (error) {
            console.error('Error parsing log file:', error);
            alert('Error parsing log file. Please check the file format.');
        }
    };
    reader.readAsText(file);
}

function processLogData(logData) {
    if (!Array.isArray(logData)) {
        logData = logData.split('\n').filter(line => line.trim()).map(line => {
            try {
                return JSON.parse(line);
            } catch {
                return { message: line };
            }
        });
    }
    
    console.log('Processed log data:', logData);
    // Here you would call functions to update the UI with the log data
    updateLogTable(logData);
    updateStats(logData);
    updateTradePerformance(logData);
}

function updateLogTable(logData) {
    const tableBody = document.getElementById('logTableBody');
    if (!tableBody) return;
    
    // Clear existing rows
    tableBody.innerHTML = '';
    
    // Add new rows
    logData.slice(0, 50).forEach(entry => {
        const row = document.createElement('tr');
        row.className = 'log-entry';
        
        if (entry.event === 'paper_buy') row.classList.add('trade-buy');
        if (entry.event === 'paper_sell') row.classList.add('trade-sell');
        if (entry.reason === 'TAKE_PROFIT') row.classList.add('trade-profit');
        if (entry.reason === 'STOP_LOSS') row.classList.add('trade-loss');
        
        const timeCell = document.createElement('td');
        timeCell.className = 'px-6 py-4 whitespace-nowrap text-sm text-gray-500';
        timeCell.textContent = entry.timestamp ? new Date(entry.timestamp).toLocaleTimeString() : '-';
        
        const eventCell = document.createElement('td');
        eventCell.className = 'px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900';
        eventCell.textContent = entry.event || '-';
        
        const symbolCell = document.createElement('td');
        symbolCell.className = 'px-6 py-4 whitespace-nowrap text-sm text-gray-500';
        symbolCell.textContent = entry.symbol || '-';
        
        const detailsCell = document.createElement('td');
        detailsCell.className = 'px-6 py-4 text-sm text-gray-500';
        
        if (entry.event === 'entry_evaluation') {
            detailsCell.textContent = `Score: ${entry.score || '-'}, Confluence: ${entry.confluence || '-'}`;
        } else if (entry.event === 'position_closed') {
            detailsCell.textContent = `PNL: ${entry.pnl || '-'} (${entry.pnl_pct || '-'}) - ${entry.reason || ''}`;
        } else {
            detailsCell.textContent = JSON.stringify(entry, null, 2);
        }
        
        row.appendChild(timeCell);
        row.appendChild(eventCell);
        row.appendChild(symbolCell);
        row.appendChild(detailsCell);
        
        tableBody.appendChild(row);
    });
    
    feather.replace();
}

function updateStats(logData) {
    // Update statistics based on log data
    const entryEvaluations = logData.filter(entry => entry.event === 'entry_evaluation');
    if (entryEvaluations.length > 0) {
        const avgScore = entryEvaluations.reduce((sum, entry) => sum + parseFloat(entry.score || 0), 0) / entryEvaluations.length;
        document.getElementById('scoreThreshold').textContent = entryEvaluations[0].threshold || '0.500';
        document.getElementById('avgDeltaScore').textContent = avgScore.toFixed(3);
        
        const marketRegime = entryEvaluations[0].market_regime || 'UNKNOWN';
        document.getElementById('marketRegime').textContent = marketRegime;
        
        const h1Trend = entryEvaluations[0].h1_trend || 'UNKNOWN';
        document.getElementById('h1Trend').textContent = h1Trend;
    }
}

function updateTradePerformance(logData) {
    // Update trade performance metrics
    const trades = logData.filter(entry => entry.event === 'position_closed');
    if (trades.length > 0) {
        const tradeStats = document.querySelector('trade-stats');
        if (tradeStats) {
            tradeStats.setAttribute('total-trades', trades.length);
            
            const profitableTrades = trades.filter(trade => trade.pnl_pct && !trade.pnl_pct.startsWith('-')).length;
            tradeStats.setAttribute('win-rate', Math.round((profitableTrades / trades.length) * 100));
            
            const totalPnl = trades.reduce((sum, trade) => {
                const pnl = parseFloat(trade.pnl_pct?.replace('%', '') || '0');
                return sum + pnl;
            }, 0);
            tradeStats.setAttribute('avg-pnl', (totalPnl / trades.length).toFixed(2));
        }
    }
}

function updateSampleData() {
    // For demo purposes, load sample data
    const sampleLogs = [
        {
            "component": "strategy",
            "symbol": "BTCUSDT",
            "bar_time": "2025-10-23T14:30:00+00:00",
            "blocking_reason": "NO_SIGNAL",
            "score": "0.354",
            "threshold": "0.500",
            "delta_score": "-0.146",
            "event": "entry_evaluation",
            "timestamp": "2025-10-27T12:58:58.402047Z"
        },
        {
            "component": "paper",
            "symbol": "BTCUSDT",
            "quantity": 0.000904,
            "price": 110758.52727600001,
            "event": "paper_buy",
            "timestamp": "2025-10-27T13:03:05.864671Z"
        },
        {
            "symbol": "BTCUSDT",
            "loss": "-0.49%",
            "reason": "ATR_SL",
            "event": "stop_loss_triggered",
            "timestamp": "2025-10-27T13:06:00.383211Z"
        },
        {
            "symbol": "BTCUSDT",
            "profit": "1.00%",
            "reason": "ATR_TP",
            "event": "take_profit_triggered",
            "timestamp": "2025-10-27T13:21:12.387101Z"
        }
    ];
    
    processLogData(sampleLogs);
}