<?php // phpcs:ignoreFile
/**
 * Mill Data Viewer - Simple PHP interface for viewing extracted mill production data
 * 
 * Requirements:
 *   - PHP 7.4+ with sqlsrv extension
 *   - SQL Server with MillDataReports and MillDataMetrics tables
 * 
 * Usage:
 *   1. Configure database connection below
 *   2. Place in web server directory
 *   3. Access via browser: http://localhost/milldata_viewer.php
 */

// ============================================================================
// Database Configuration
// ============================================================================
$config = [
    'server'   => '192.168.0.16',
    'database' => 'lasucaai',
    'username' => 'lasucaai',
    'password' => 'is413#dfslw',
];

// ============================================================================
// Database Connection
// ============================================================================
function getConnection($config) {
    $connectionOptions = [
        "Database" => $config['database'],
        "Uid" => $config['username'],
        "PWD" => $config['password'],
        "TrustServerCertificate" => true,
        "Encrypt" => false,
    ];
    
    $conn = sqlsrv_connect($config['server'], $connectionOptions);
    
    if ($conn === false) {
        die("Connection failed: " . print_r(sqlsrv_errors(), true));
    }
    
    return $conn;
}

// ============================================================================
// Data Queries
// ============================================================================
function getSourceFiles($conn) {
    $sql = "SELECT DISTINCT SourceFileName, 
                   MIN(BeginningDate) as BeginningDate,
                   MAX(EndingDate) as EndingDate,
                   MAX(ProcessedAt) as ProcessedAt
            FROM dbo.MillDataReports 
            GROUP BY SourceFileName
            ORDER BY MAX(ProcessedAt) DESC";
    
    $stmt = sqlsrv_query($conn, $sql);
    $files = [];
    
    while ($row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {
        $files[] = $row;
    }
    
    return $files;
}

function getMillsForFile($conn, $sourceFileName) {
    $sql = "SELECT ReportId, MillName 
            FROM dbo.MillDataReports 
            WHERE SourceFileName = ?
            ORDER BY MillName";
    
    $stmt = sqlsrv_query($conn, $sql, [$sourceFileName]);
    
    if ($stmt === false) {
        return [];
    }
    
    $mills = [];
    
    while ($row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {
        $mills[] = $row;
    }
    
    return $mills;
}

function getReports($conn) {
    $sql = "SELECT ReportId, SourceFileName, MillName, ReportTitle, 
                   BeginningDate, EndingDate, CropDays, ProcessedAt
            FROM dbo.MillDataReports 
            ORDER BY ProcessedAt DESC";
    
    $stmt = sqlsrv_query($conn, $sql);
    $reports = [];
    
    while ($row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {
        $reports[] = $row;
    }
    
    return $reports;
}

function getMetrics($conn, $reportId, $search = '', $category = '') {
    $params = [$reportId];
    
    $sql = "SELECT MetricId, ItemNumber, MetricName, RunValue, RunValueNumeric,
                   ToDateValue, ToDateValueNumeric, Unit, Category
            FROM dbo.MillDataMetrics 
            WHERE ReportId = ?";
    
    if (!empty($search)) {
        $sql .= " AND MetricName LIKE ?";
        $params[] = '%' . $search . '%';
    }
    
    if (!empty($category)) {
        $sql .= " AND Category = ?";
        $params[] = $category;
    }
    
    $sql .= " ORDER BY MetricId";
    
    $stmt = sqlsrv_query($conn, $sql, $params);
    $metrics = [];
    
    while ($row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {
        $metrics[] = $row;
    }
    
    return $metrics;
}

function getCategories($conn) {
    $sql = "SELECT DISTINCT Category FROM dbo.MillDataMetrics WHERE Category IS NOT NULL ORDER BY Category";
    $stmt = sqlsrv_query($conn, $sql);
    $categories = [];
    
    while ($row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {
        $categories[] = $row['Category'];
    }
    
    return $categories;
}

function getReportStats($conn) {
    $sql = "SELECT 
                COUNT(DISTINCT r.ReportId) as TotalReports,
                COUNT(m.MetricId) as TotalMetrics,
                MIN(r.BeginningDate) as EarliestDate,
                MAX(r.EndingDate) as LatestDate
            FROM dbo.MillDataReports r
            LEFT JOIN dbo.MillDataMetrics m ON r.ReportId = m.ReportId";
    
    $stmt = sqlsrv_query($conn, $sql);
    return sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC);
}

// ============================================================================
// Main Logic
// ============================================================================
$conn = getConnection($config);

$selectedFile = isset($_GET['file']) ? trim($_GET['file']) : '';
$selectedReportId = isset($_GET['report']) ? intval($_GET['report']) : 0;
$searchTerm = isset($_GET['search']) ? trim($_GET['search']) : '';
$selectedCategory = isset($_GET['category']) ? trim($_GET['category']) : '';

$sourceFiles = getSourceFiles($conn);
$categories = getCategories($conn);
$stats = getReportStats($conn);

// Default to first file if none selected
if (empty($selectedFile) && !empty($sourceFiles)) {
    $selectedFile = $sourceFiles[0]['SourceFileName'];
}

// Get mills for selected file
$millsForFile = !empty($selectedFile) ? getMillsForFile($conn, $selectedFile) : [];

// Default to first mill if no report selected
if ($selectedReportId === 0 && !empty($millsForFile)) {
    $selectedReportId = $millsForFile[0]['ReportId'];
}

// Validate report belongs to selected file
$validReport = false;
foreach ($millsForFile as $m) {
    if ($m['ReportId'] == $selectedReportId) {
        $validReport = true;
        break;
    }
}
if (!$validReport && !empty($millsForFile)) {
    $selectedReportId = $millsForFile[0]['ReportId'];
}

$reports = getReports($conn);
$metrics = $selectedReportId ? getMetrics($conn, $selectedReportId, $searchTerm, $selectedCategory) : [];

// Find selected report details
$selectedReport = null;
foreach ($reports as $r) {
    if ($r['ReportId'] == $selectedReportId) {
        $selectedReport = $r;
        break;
    }
}

// Find selected file details
$selectedFileInfo = null;
foreach ($sourceFiles as $f) {
    if ($f['SourceFileName'] == $selectedFile) {
        $selectedFileInfo = $f;
        break;
    }
}

sqlsrv_close($conn);

// Format date helper
function formatDate($date) {
    if ($date instanceof DateTime) {
        return $date->format('m/d/Y');
    }
    return $date ?? '-';
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Mill Data Viewer</title>
    <style>
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            background: linear-gradient(135deg, #2c5530 0%, #4a7c50 100%);
            color: white;
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        header h1 {
            font-size: 1.8rem;
            margin-bottom: 5px;
        }
        
        header p {
            opacity: 0.9;
            font-size: 0.95rem;
        }
        
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .stat-card {
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            text-align: center;
        }
        
        .stat-card .value {
            font-size: 1.8rem;
            font-weight: bold;
            color: #2c5530;
        }
        
        .stat-card .label {
            font-size: 0.85rem;
            color: #666;
        }
        
        .layout {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 20px;
        }
        
        @media (max-width: 900px) {
            .layout {
                grid-template-columns: 1fr;
            }
        }
        
        .sidebar {
            background: white;
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            height: fit-content;
        }
        
        .sidebar h2 {
            font-size: 1rem;
            color: #666;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .report-list {
            list-style: none;
        }
        
        .report-list li {
            margin-bottom: 8px;
        }
        
        .report-list a {
            display: block;
            padding: 10px 12px;
            background: #f8f8f8;
            border-radius: 6px;
            text-decoration: none;
            color: #333;
            transition: all 0.2s;
            border-left: 3px solid transparent;
        }
        
        .report-list a:hover {
            background: #e8f5e9;
            border-left-color: #4a7c50;
        }
        
        .report-list a.active {
            background: #e8f5e9;
            border-left-color: #2c5530;
            font-weight: 500;
        }
        
        .report-list .date {
            font-size: 0.8rem;
            color: #888;
        }
        
        .main-content {
            background: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        
        .report-header {
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .report-header h2 {
            color: #2c5530;
            margin-bottom: 5px;
        }
        
        .report-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: #666;
        }
        
        .filters {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        
        .filters input, .filters select {
            padding: 8px 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 0.9rem;
        }
        
        .filters input {
            flex: 1;
            min-width: 200px;
        }
        
        .filters button {
            padding: 8px 20px;
            background: #2c5530;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.9rem;
        }
        
        .filters button:hover {
            background: #4a7c50;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        
        th {
            background: #f8f8f8;
            padding: 12px 10px;
            text-align: left;
            font-weight: 600;
            color: #555;
            border-bottom: 2px solid #ddd;
            position: sticky;
            top: 0;
        }
        
        td {
            padding: 10px;
            border-bottom: 1px solid #eee;
        }
        
        tr:hover {
            background: #fafafa;
        }
        
        .item-num {
            font-weight: 600;
            color: #2c5530;
            white-space: nowrap;
        }
        
        .metric-name {
            max-width: 300px;
        }
        
        .value-cell {
            text-align: right;
            font-family: 'Consolas', 'Monaco', monospace;
            white-space: nowrap;
        }
        
        .value-cell.positive {
            color: #2e7d32;
        }
        
        .value-cell.negative {
            color: #c62828;
        }
        
        .category-badge {
            display: inline-block;
            padding: 2px 8px;
            background: #e8f5e9;
            color: #2c5530;
            border-radius: 12px;
            font-size: 0.75rem;
            white-space: nowrap;
        }
        
        .no-data {
            text-align: center;
            padding: 40px;
            color: #888;
        }
        
        .table-container {
            max-height: 600px;
            overflow-y: auto;
        }
        
        .results-count {
            font-size: 0.85rem;
            color: #666;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
    <div class="container">
        <header>
            <h1>🏭 Mill Data Viewer</h1>
            <p>Sugar Mill Production Report Data</p>
        </header>
        
        <div class="stats">
            <div class="stat-card">
                <div class="value"><?= $stats['TotalReports'] ?? 0 ?></div>
                <div class="label">Reports</div>
            </div>
            <div class="stat-card">
                <div class="value"><?= number_format($stats['TotalMetrics'] ?? 0) ?></div>
                <div class="label">Metrics</div>
            </div>
            <div class="stat-card">
                <div class="value"><?= formatDate($stats['EarliestDate']) ?></div>
                <div class="label">Earliest</div>
            </div>
            <div class="stat-card">
                <div class="value"><?= formatDate($stats['LatestDate']) ?></div>
                <div class="label">Latest</div>
            </div>
        </div>
        
        <div class="layout">
            <aside class="sidebar">
                <h2>Reports</h2>
                <ul class="report-list">
                    <?php foreach ($sourceFiles as $file): ?>
                    <li>
                        <a href="?file=<?= urlencode($file['SourceFileName']) ?>" 
                           class="<?= $file['SourceFileName'] == $selectedFile ? 'active' : '' ?>">
                            <?= htmlspecialchars($file['SourceFileName']) ?>
                            <div class="date">
                                <?= formatDate($file['BeginningDate']) ?> - <?= formatDate($file['EndingDate']) ?>
                            </div>
                        </a>
                    </li>
                    <?php endforeach; ?>
                    
                    <?php if (empty($sourceFiles)): ?>
                    <li class="no-data">No reports found</li>
                    <?php endif; ?>
                </ul>
            </aside>
            
            <main class="main-content">
                <?php if ($selectedReport): ?>
                <div class="report-header">
                    <h2><?= htmlspecialchars($selectedReport['ReportTitle'] ?? $selectedReport['SourceFileName']) ?></h2>
                    <div class="report-meta">
                        <span>📅 <?= formatDate($selectedReport['BeginningDate']) ?> - <?= formatDate($selectedReport['EndingDate']) ?></span>
                        <span>📊 <?= $selectedReport['CropDays'] ?? '-' ?> crop days</span>
                        <span>🏭 
                            <select onchange="window.location.href='?file=<?= urlencode($selectedFile) ?>&report='+this.value" style="padding: 4px 8px; border-radius: 4px; border: 1px solid #ccc;">
                                <?php foreach ($millsForFile as $mill): 
                                    // Display "State Average" for STATE_AVG mill
                                    $displayName = $mill['MillName'];
                                    if ($displayName === 'Mill STATE_AVG') {
                                        $displayName = 'State Average';
                                    }
                                ?>
                                <option value="<?= $mill['ReportId'] ?>" <?= $mill['ReportId'] == $selectedReportId ? 'selected' : '' ?>>
                                    <?= htmlspecialchars($displayName) ?>
                                </option>
                                <?php endforeach; ?>
                            </select>
                        </span>
                    </div>
                </div>
                
                <form class="filters" method="get">
                    <input type="hidden" name="file" value="<?= htmlspecialchars($selectedFile) ?>">
                    <input type="hidden" name="report" value="<?= $selectedReportId ?>">
                    <input type="text" name="search" placeholder="Search metrics..." 
                           value="<?= htmlspecialchars($searchTerm) ?>">
                    <select name="category">
                        <option value="">All Categories</option>
                        <?php foreach ($categories as $cat): ?>
                        <option value="<?= htmlspecialchars($cat) ?>" 
                                <?= $cat === $selectedCategory ? 'selected' : '' ?>>
                            <?= htmlspecialchars($cat) ?>
                        </option>
                        <?php endforeach; ?>
                    </select>
                    <button type="submit">Filter</button>
                    <?php if ($searchTerm || $selectedCategory): ?>
                    <a href="?report=<?= $selectedReportId ?>" style="padding: 8px; color: #666;">Clear</a>
                    <?php endif; ?>
                </form>
                
                <div class="results-count">
                    Showing <?= count($metrics) ?> metrics
                    <?php if ($searchTerm): ?>
                        matching "<?= htmlspecialchars($searchTerm) ?>"
                    <?php endif; ?>
                </div>
                
                <div class="table-container">
                    <table>
                        <thead>
                            <tr>
                                <th>Item</th>
                                <th>Metric</th>
                                <th>RUN</th>
                                <th>TO DATE</th>
                                <th>Category</th>
                            </tr>
                        </thead>
                        <tbody>
                            <?php foreach ($metrics as $m): ?>
                            <tr>
                                <td class="item-num"><?= htmlspecialchars($m['ItemNumber'] ?? '') ?></td>
                                <td class="metric-name"><?= htmlspecialchars($m['MetricName'] ?? '') ?></td>
                                <td class="value-cell <?= ($m['RunValueNumeric'] ?? 0) < 0 ? 'negative' : '' ?>">
                                    <?= htmlspecialchars($m['RunValue'] ?? '') ?>
                                </td>
                                <td class="value-cell <?= ($m['ToDateValueNumeric'] ?? 0) < 0 ? 'negative' : '' ?>">
                                    <?= htmlspecialchars($m['ToDateValue'] ?? '') ?>
                                </td>
                                <td>
                                    <?php if ($m['Category']): ?>
                                    <span class="category-badge"><?= htmlspecialchars($m['Category']) ?></span>
                                    <?php endif; ?>
                                </td>
                            </tr>
                            <?php endforeach; ?>
                            
                            <?php if (empty($metrics)): ?>
                            <tr>
                                <td colspan="5" class="no-data">No metrics found</td>
                            </tr>
                            <?php endif; ?>
                        </tbody>
                    </table>
                </div>
                
                <?php else: ?>
                <div class="no-data">
                    <p>Select a report from the sidebar to view metrics</p>
                </div>
                <?php endif; ?>
            </main>
        </div>
    </div>
</body>
</html>