<?php
// phpcs:ignoreFile

if (!function_exists('sqlsrv_query')) {
	define('FARMDATA_SQLSRV_STUB', true);

	function sqlsrv_query($conn, $sql, $params = array(), $options = array())
	{
		return false;
	}

	function sqlsrv_fetch_array($stmt, $fetchType)
	{
		return false;
	}

	function sqlsrv_free_stmt($stmt)
	{
		return false;
	}

	function sqlsrv_connect($serverName, $connectionInfo)
	{
		return false;
	}

	function sqlsrv_close($conn)
	{
		return true;
	}
}

function farmdata_env($key, $fallback = null)
{
		$value = getenv($key);

		if ($value === false || $value === null || $value === '') {
				return $fallback;
		}

		return $value;
}

function farmdata_fetch_column($conn, $sql, $params = array())
{
	$results = array();

	if (!function_exists('sqlsrv_query')) {
		return $results;
	}

	$stmt = sqlsrv_query($conn, $sql, $params);

	if ($stmt === false) {
		return $results;
	}

	$fetchNumeric = defined('SQLSRV_FETCH_NUMERIC') ? constant('SQLSRV_FETCH_NUMERIC') : 2;

	while ($row = sqlsrv_fetch_array($stmt, $fetchNumeric)) {
		if (!isset($row[0])) {
			continue;
		}

		$value = trim((string) $row[0]);

		if ($value === '') {
			continue;
		}

		$results[] = $value;
	}

	if (function_exists('sqlsrv_free_stmt')) {
		sqlsrv_free_stmt($stmt);
	}

	return $results;
}

function farmdata_format_number($value, $decimals = 0)
{
		if (!is_numeric($value)) {
				return '—';
		}

		return number_format((float) $value, $decimals);
}

function farmdata_h($value)
{
		return htmlspecialchars((string) $value, ENT_QUOTES, 'UTF-8');
}

$filters = array(
		'grower' => isset($_GET['grower']) ? trim((string) $_GET['grower']) : '',
		'cropday' => isset($_GET['cropday']) ? trim((string) $_GET['cropday']) : '',
		'vehicle' => isset($_GET['vehicle']) ? trim((string) $_GET['vehicle']) : '',
		'tract' => isset($_GET['tract']) ? trim((string) $_GET['tract']) : '',
		'load' => isset($_GET['load']) ? trim((string) $_GET['load']) : '',
		'overload' => isset($_GET['overload']) && $_GET['overload'] === '1',
);

$serverName = farmdata_env('SQLSRV_HOST', 'CBM2K12\\SQLEXPRESS');
$connectionInfo = array(
		'UID' => farmdata_env('SQLSRV_USERNAME', 'cbmclient'),
		'PWD' => farmdata_env('SQLSRV_PASSWORD', 'ascbm2k'),
		'ReturnDatesAsStrings' => true,
		'CharacterSet' => 'UTF-8',
		'Database' => farmdata_env('SQLSRV_DATABASE', 'SugarCaneScale'),
);

$conn = null;
$connectionError = null;
$growerOptions = array();
$cropDayOptions = array();
$vehicleSuggestions = array();
$tractSuggestions = array();
$loadSuggestions = array();
$latestCropDay = null;
$latestCropDayTons = null;
$overallTons = null;
$rows = array();
$resultTotals = array(
		'tons' => 0.0,
		'gross' => 0.0,
		'tare' => 0.0,
);

if (defined('FARMDATA_SQLSRV_STUB') || !function_exists('sqlsrv_connect')) {
	$connectionError = 'The SQL Server driver is not available on this server.';
} else {
	$conn = @sqlsrv_connect($serverName, $connectionInfo);

	if ($conn === false) {
		$connectionError = 'Unable to connect to the load data database at this time.';
	} else {
		$growerOptions = farmdata_fetch_column(
				$conn,
				"SELECT DISTINCT AccountName FROM Tract WHERE AccountName IS NOT NULL AND AccountName <> '' ORDER BY AccountName ASC"
		);

		$cropDayOptions = farmdata_fetch_column(
				$conn,
				"SELECT DISTINCT CropDay FROM LoadData WHERE CropDay IS NOT NULL ORDER BY CropDay DESC"
		);

		$vehicleSuggestions = farmdata_fetch_column(
				$conn,
				"SELECT DISTINCT TOP 75 VehicleId_Fk FROM LoadData WHERE VehicleId_Fk IS NOT NULL AND VehicleId_Fk <> '' ORDER BY VehicleId_Fk ASC"
		);

		$tractSuggestions = farmdata_fetch_column(
				$conn,
				"SELECT DISTINCT TOP 75 TractId_Fk FROM LoadData WHERE TractId_Fk IS NOT NULL AND TractId_Fk <> '' ORDER BY TractId_Fk ASC"
		);

		$loadSuggestions = farmdata_fetch_column(
				$conn,
				"SELECT DISTINCT TOP 50 LoadId_Pk FROM LoadData WHERE LoadId_Pk IS NOT NULL ORDER BY LoadId_Pk DESC"
		);

			$latestStmt = sqlsrv_query(
				$conn,
				'SELECT TOP 1 CropDay, SUM(Tons) AS total_tons FROM LoadData WHERE CropDay IS NOT NULL GROUP BY CropDay ORDER BY CropDay DESC'
			);

			if ($latestStmt !== false) {
				$fetchAssoc = defined('SQLSRV_FETCH_ASSOC') ? constant('SQLSRV_FETCH_ASSOC') : 2;
				$latestRow = sqlsrv_fetch_array($latestStmt, $fetchAssoc);

				if ($latestRow) {
					$latestCropDay = $latestRow['CropDay'];
					$latestCropDayTons = isset($latestRow['total_tons']) ? (float) $latestRow['total_tons'] : null;
				}

				if (function_exists('sqlsrv_free_stmt')) {
					sqlsrv_free_stmt($latestStmt);
				}
			}

			$overallStmt = sqlsrv_query(
				$conn,
				'SELECT SUM(Tons) AS total_tons FROM LoadData'
			);

			if ($overallStmt !== false) {
				$fetchAssoc = isset($fetchAssoc) ? $fetchAssoc : (defined('SQLSRV_FETCH_ASSOC') ? constant('SQLSRV_FETCH_ASSOC') : 2);
				$overallRow = sqlsrv_fetch_array($overallStmt, $fetchAssoc);

				if ($overallRow && isset($overallRow['total_tons'])) {
					$overallTons = (float) $overallRow['total_tons'];
				}

				if (function_exists('sqlsrv_free_stmt')) {
					sqlsrv_free_stmt($overallStmt);
				}
			}

		$query = "SELECT TOP 500
				ld.LoadId_Pk,
				ld.CropDay,
				ld.VehicleId_Fk,
				ld.TractId_Fk,
				ld.TareWt,
				ld.GrossWt,
				ld.Tons,
				ld.FarmerId_Fk,
				CONVERT(varchar(20), ld.DateOut, 100) AS TimeOutFormatted,
				ld.Parked,
				t.AccountName
			FROM LoadData ld
			LEFT JOIN (
				SELECT AccountId_Pk, MAX(AccountName) AS AccountName
				FROM Tract
				WHERE AccountName IS NOT NULL AND AccountName <> ''
				GROUP BY AccountId_Pk
			) t ON ld.FarmerId_Fk = t.AccountId_Pk";

		$conditions = array();
		$params = array();

		if ($filters['grower'] !== '') {
				$conditions[] = 't.AccountName = ?';
				$params[] = $filters['grower'];
		}

		if ($filters['cropday'] !== '') {
				$conditions[] = 'ld.CropDay = ?';
				$params[] = $filters['cropday'];
		}

		if ($filters['vehicle'] !== '') {
				$conditions[] = 'ld.VehicleId_Fk LIKE ?';
				$params[] = $filters['vehicle'] . '%';
		}

		if ($filters['tract'] !== '') {
				$conditions[] = 'ld.TractId_Fk LIKE ?';
				$params[] = $filters['tract'] . '%';
		}

		if ($filters['load'] !== '') {
				$conditions[] = 'ld.LoadId_Pk = ?';
				$params[] = (int) $filters['load'];
		}

		if ($filters['overload']) {
				$conditions[] = 'ld.GrossWt >= ?';
				$params[] = 100000;
		}

		if (!empty($conditions)) {
				$query .= ' WHERE ' . implode(' AND ', $conditions);
		}

		$query .= ' ORDER BY ld.DateOut DESC, ld.LoadId_Pk DESC';

			$cursorType = defined('SQLSRV_CURSOR_KEYSET') ? constant('SQLSRV_CURSOR_KEYSET') : 1;
			$loadStmt = sqlsrv_query($conn, $query, $params, array('Scrollable' => $cursorType));

			if ($loadStmt === false) {
				$connectionError = 'Unable to retrieve load data right now.';
			} else {
				$fetchAssoc = defined('SQLSRV_FETCH_ASSOC') ? constant('SQLSRV_FETCH_ASSOC') : 2;
				while ($row = sqlsrv_fetch_array($loadStmt, $fetchAssoc)) {
					$tons = isset($row['Tons']) && is_numeric($row['Tons']) ? (float) $row['Tons'] : null;
					$tare = isset($row['TareWt']) && is_numeric($row['TareWt']) ? (float) $row['TareWt'] : null;
					$gross = isset($row['GrossWt']) && is_numeric($row['GrossWt']) ? (float) $row['GrossWt'] : null;
					$parkedRaw = isset($row['Parked']) ? trim((string) $row['Parked']) : '';
					$parked = in_array(strtoupper($parkedRaw), array('1', 'Y', 'YES', 'TRUE'), true);

						if ($tons !== null) {
								$resultTotals['tons'] += $tons;
						}

						if ($tare !== null) {
								$resultTotals['tare'] += $tare;
						}

						if ($gross !== null) {
								$resultTotals['gross'] += $gross;
						}

						$rows[] = array(
								'load_id' => isset($row['LoadId_Pk']) ? (int) $row['LoadId_Pk'] : null,
								'crop_day' => isset($row['CropDay']) ? $row['CropDay'] : '',
								'vehicle' => isset($row['VehicleId_Fk']) ? trim((string) $row['VehicleId_Fk']) : '',
								'tract' => isset($row['TractId_Fk']) ? trim((string) $row['TractId_Fk']) : '',
								'grower' => isset($row['AccountName']) ? trim((string) $row['AccountName']) : '',
								'tons' => $tons,
								'tare' => $tare,
								'gross' => $gross,
								'time_out' => isset($row['TimeOutFormatted']) ? trim((string) $row['TimeOutFormatted']) : '',
							'parked' => $parked,
						);
					}

					if (function_exists('sqlsrv_free_stmt')) {
						sqlsrv_free_stmt($loadStmt);
					}
				}

				if (function_exists('sqlsrv_close')) {
					sqlsrv_close($conn);
				}
			}
		}

$resultCount = count($rows);

$pageTitle = 'Load Data Explorer';
$metaDescription = 'Search LASUCA load data by grower, crop day, vehicle, or tract.';
$activeNav = 'production';
$extraStyles = array('/new/css/farmdata.css');
$extraScripts = array('/new/js/scripts.js');
$rootDir = __DIR__;
require $rootDir . '/../inc/theme-header.php';
?>

		<main>
			<header class="hero hero-sub farmdata-hero">
				<div class="container">
					<span class="badge">Live load data</span>
					<h1 class="mt-3">Search cane deliveries and scale tickets.</h1>
					<p class="lead">
						Filter the latest loads by grower, crop day, vehicle, or tract. Results update instantly and include live
						tonnage, tare, and gross weight totals so you can track activity at a glance.
					</p>
				</div>
			</header>

			<section class="page-section py-5">
				<div class="container">
					<?php if ($connectionError !== null): ?>
						<div class="alert alert-warning" role="alert">
							<?php echo farmdata_h($connectionError); ?>
						</div>
					<?php endif; ?>

					<div class="farmdata-search-card">
						<form method="get" action="index.php" class="row g-4 align-items-end">
							<div class="col-12 col-md-6 col-xl-3">
								<label for="grower" class="form-label">Grower</label>
								<select class="form-select" id="grower" name="grower">
									<option value="">All growers</option>
									<?php foreach ($growerOptions as $option): ?>
										<option value="<?php echo farmdata_h($option); ?>"<?php echo $filters['grower'] === $option ? ' selected' : ''; ?>>
											<?php echo farmdata_h($option); ?>
										</option>
									<?php endforeach; ?>
								</select>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<label for="cropday" class="form-label">Crop day</label>
								<select class="form-select" id="cropday" name="cropday">
									<option value="">All crop days</option>
									<?php foreach ($cropDayOptions as $option): ?>
										<option value="<?php echo farmdata_h($option); ?>"<?php echo $filters['cropday'] === $option ? ' selected' : ''; ?>>
											<?php echo farmdata_h($option); ?>
										</option>
									<?php endforeach; ?>
								</select>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<label for="vehicle" class="form-label">Vehicle</label>
								<input
									type="text"
									class="form-control"
									id="vehicle"
									name="vehicle"
									list="vehicleOptions"
									value="<?php echo farmdata_h($filters['vehicle']); ?>"
									placeholder="e.g. V9901"
								/>
								<datalist id="vehicleOptions">
									<?php foreach ($vehicleSuggestions as $option): ?>
										<option value="<?php echo farmdata_h($option); ?>"></option>
									<?php endforeach; ?>
								</datalist>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<label for="tract" class="form-label">Tract</label>
								<input
									type="text"
									class="form-control"
									id="tract"
									name="tract"
									list="tractOptions"
									value="<?php echo farmdata_h($filters['tract']); ?>"
									placeholder="Tract ID"
								/>
								<datalist id="tractOptions">
									<?php foreach ($tractSuggestions as $option): ?>
										<option value="<?php echo farmdata_h($option); ?>"></option>
									<?php endforeach; ?>
								</datalist>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<label for="load" class="form-label">Load #</label>
								<input
									type="number"
									class="form-control"
									id="load"
									name="load"
									list="loadOptions"
									value="<?php echo farmdata_h($filters['load']); ?>"
									placeholder="Exact load number"
									min="1"
								/>
								<datalist id="loadOptions">
									<?php foreach ($loadSuggestions as $option): ?>
										<option value="<?php echo farmdata_h($option); ?>"></option>
									<?php endforeach; ?>
								</datalist>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<div class="form-check">
									<input class="form-check-input" type="checkbox" value="1" id="overload" name="overload"<?php echo $filters['overload'] ? ' checked' : ''; ?> />
									<label class="form-check-label" for="overload">Show overloads (gross ≥ 100,000)</label>
								</div>
							</div>

							<div class="col-12 col-md-6 col-xl-3 ms-auto">
								<button type="submit" class="btn btn-success w-100">Search loads</button>
							</div>

							<div class="col-12 col-md-6 col-xl-3">
								<a class="btn btn-outline-secondary w-100" href="/farmdata/index.php">Reset filters</a>
							</div>
						</form>
					</div>

					<div class="farmdata-metrics">
						<div class="farmdata-metric">
							<h4>Loads returned</h4>
							<p><?php echo farmdata_h(number_format($resultCount)); ?> matching records</p>
						</div>
						<div class="farmdata-metric">
							<h4>Result tons</h4>
							<p><?php echo farmdata_h(farmdata_format_number($resultTotals['tons'], 2)); ?> total tons</p>
						</div>
						<div class="farmdata-metric">
							<h4>Latest crop day</h4>
							<p>
								<?php if ($latestCropDay !== null): ?>
									Day <?php echo farmdata_h($latestCropDay); ?> · <?php echo farmdata_h(farmdata_format_number($latestCropDayTons, 2)); ?> tons
								<?php else: ?>
									Not available
								<?php endif; ?>
							</p>
						</div>
						<div class="farmdata-metric">
							<h4>All-time tons</h4>
							<p><?php echo farmdata_h(farmdata_format_number($overallTons, 2)); ?> tons processed</p>
						</div>
					</div>

					<div class="farmdata-results-card">
						<?php if ($resultCount === 0): ?>
							<p class="mb-0 text-muted">No loads match the filters you selected. Try adjusting the search criteria.</p>
						<?php else: ?>
							<div class="farmdata-results-summary">
								<span>Gross: <?php echo farmdata_h(farmdata_format_number($resultTotals['gross'], 0)); ?></span>
								<span>Tare: <?php echo farmdata_h(farmdata_format_number($resultTotals['tare'], 0)); ?></span>
								<span>Tons: <?php echo farmdata_h(farmdata_format_number($resultTotals['tons'], 2)); ?></span>
							</div>
							<div class="table-responsive">
								<table class="table table-hover align-middle mb-0">
									<thead>
										<tr>
											<th scope="col">Load #</th>
											<th scope="col">Crop day</th>
											<th scope="col">Grower</th>
											<th scope="col">Tract</th>
											<th scope="col">Vehicle</th>
											<th scope="col">Gross</th>
											<th scope="col">Tare</th>
											<th scope="col">Tons</th>
											<th scope="col">Time out</th>
											<th scope="col">Parked</th>
										</tr>
									</thead>
									<tbody>
										<?php foreach ($rows as $row): ?>
											<tr>
												<td><?php echo farmdata_h($row['load_id']); ?></td>
												<td><?php echo farmdata_h($row['crop_day']); ?></td>
												<td><?php echo $row['grower'] !== '' ? farmdata_h($row['grower']) : '—'; ?></td>
												<td><?php echo $row['tract'] !== '' ? farmdata_h($row['tract']) : '—'; ?></td>
												<td><?php echo $row['vehicle'] !== '' ? farmdata_h($row['vehicle']) : '—'; ?></td>
												<td><?php echo farmdata_h(farmdata_format_number($row['gross'], 0)); ?></td>
												<td><?php echo farmdata_h(farmdata_format_number($row['tare'], 0)); ?></td>
												<td><?php echo farmdata_h(farmdata_format_number($row['tons'], 2)); ?></td>
												<td><?php echo $row['time_out'] !== '' ? farmdata_h($row['time_out']) : '—'; ?></td>
												<td><?php echo $row['parked'] ? '<span class="badge bg-warning text-dark">Yes</span>' : '<span class="badge bg-success">No</span>'; ?></td>
											</tr>
										<?php endforeach; ?>
									</tbody>
								</table>
							</div>
						<?php endif; ?>
					</div>
				</div>
			</section>
		</main>

<?php require $rootDir . '/../inc/theme-footer.php'; ?>