<?php
/******************************************************************************
 * YMS - Yacht Management Software
 * Copyright (C) 2024-2026 Thomas Hooge
 * 
 * SPDX-License-Identifier: WTFPL
 ******************************************************************************/

require 'globals.inc';
require 'lib/gpc.inc';

$pagetitle=_('Provisions');

$id = gpc_get_int($_REQUEST, 'id', 0);

$opt_storage = db_get_opt_storage($user->vid);
$opt_category = db_get_options(5);
$opt_unit = db_get_options(6);

// ========== ACTIONS START ===================================================

switch ($submit = form_get_action()) {

    case NULL: break;

    case 'add':    $action = ACT_ADD; break;
    case 'view':   $action = ACT_VIEW; break;
    case 'edit':   $action = ACT_EDIT; break;
    case 'del':    $action = ACT_DELETE; break;
    case 'list':   $action = ACT_VIEW_LIST; break;

    case 'filter':
        $flt = array();
        $flt['cat'] = gpc_get_enum($_POST, 'flt_cat', array_merge(array_keys($opt_category), ['-2', '-1']));
        $flt['txt'] = gpc_get_string($_POST, 'flt_txt');
        db_save_filter($flt, 202);
        $action = ACT_DEFAULT;
        break;

    case 'freset':
        db_clear_filter(202);
        $action = ACT_DEFAULT;
        break;

    case 'insert':
        $p[':provname'] = gpc_get_string($_POST, 'provname');
        $p[':number'] = gpc_get_int($_POST, 'number');
        $p[':unit'] = gpc_get_int($_POST, 'unit');
        $p[':storedate'] = gpc_get_string($_POST, 'storedate');
        $p[':shelflife'] = gpc_get_string($_POST, 'shelflife');
        $id = db_exec_insert('provisions', $p);
        $action = ACT_VIEW;
        break;

    case 'update':
        $p[':provid'] = $id;
        $p[':provname'] = gpc_get_string($_POST, 'provname');
        $p[':provcat'] = gpc_get_int($_POST, 'provcat');
        $p[':number'] = gpc_get_uint($_POST, 'number');
        $p[':target'] = gpc_get_uint($_POST, 'target');
        $p[':weight'] = min(gpc_get_float($_POST, 'weight'), 999.99); // limit max value
        $p[':weight_net'] = min(gpc_get_float($_POST, 'weight_net'), 999.99);
        $p[':unit'] = gpc_get_int($_POST, 'unit');
        $p[':calories'] = gpc_get_uint($_POST, 'calories');
        $p[':storedate'] = gpc_get_string($_POST, 'storedate');
        $p[':shelflife'] = gpc_get_string($_POST, 'shelflife');
        $p[':price'] = gpc_get_currency($_POST, 'price');
        $p[':sid'] = gpc_get_int($_POST, 'sid');
        if ($p[':sid'] <= 0) $p[':sid'] = NULL;
        $p[':remarks'] = gpc_get_string($_POST, 'remarks', 150);
        db_exec_update('provisions', $p, 'provid');
        $action = ACT_VIEW;
        break;

    case 'delete':
        // Security token needed!
        if (gpc_get_string($_POST, 'token', 16) != $_SESSION['token']) {
            $g_error->Add(_('Delete prohibited, invalid security token!'));
            $action = ACT_VIEW;
            break;
        }
        $action = ACT_DEFAULT;
        break;


    default:
        $g_error->Add(sprintf(_('Unknown function!'), $submit));
        $valid = FALSE;

}

// ========== ACTIONS END =====================================================

require 'header.php';

// ========== PAGE CONTENT ====================================================

if ($action == ACT_DEFAULT):
// ========== VARIANT: default behavior =======================================

page_caption_search($pagetitle);

// load filter from db
$flt = db_get_filter($user->id, 202);

$w = array('(vid=:vid OR sid IS NULL)');
$p = array(':vid' => $user->vid);
if ($flt->cat == -1) {
    $w[] = 'provcat IS NULL';
} elseif ($flt->cat > 0) {
    $w[] = 'provcat=:provcat';
    $p[':provcat'] = $flt->cat;
}
if (strlen($flt->txt) > 1) {
    $w[] = 'provname LIKE :txt';
    $p[':txt'] = '%'.$flt->txt.'%';
}
$where = join(' AND ', $w);

$order = ' ORDER BY provid';

// get total record count for pagination and limit
$sql = "SELECT COUNT(*) FROM provisions LEFT OUTER JOIN storage USING (sid) WHERE " . $where;
$sth = $pdo->prepare($sql);
try {
    $sth->execute($p);
} catch(PDOException $e) {
    $g_error->Add($e->getMessage());
    $g_error->Add($sql);
    $g_error->Add(print_r($p, true));
    $g_error->PrintOut();
}
$numrows = $sth->fetchColumn();
$page = gpc_get_int($_REQUEST, 'p', 1);
$rows_pp = gpc_get_int($_REQUEST, 'n', $user->rows_pp);
$lastpage = ceil($numrows/$rows_pp);

// provisions can be assigned to a store or be free
// d0 is the maximum number of days age
// d1 is the current age in days. If negative then it is over limit
// TODO display over with warning levels: 50% over, 100% over etc.
$sql = "SELECT provid, provname, number, target, unit, storedate, shelflife, sid,"
     . "    DATEDIFF(shelflife, storedate) AS d0, DATEDIFF (shelflife, CURDATE()) AS d1 "
     . "FROM provisions LEFT OUTER JOIN storage USING (sid)";
$sql .= ' WHERE ' . $where;
$sql .= $order;

// if pagination:
$sql .= ' LIMIT ' . ($page - 1) * $rows_pp . ',' . $rows_pp;

$sth = $pdo->prepare($sql);
$sth->execute($p);
$res = $sth->fetchAll();

?>
<form method="post" action="<?=$g_scriptname?>">
<div id="filter" class="card">
<div class="card-header"><i class="bi bi-funnel me-2"></i>Filter</div>
<div class="card-body d-flex flex-wrap gap-3">
<?php
filter_create_select('flt_cat', _('Category'), $g_opt_all + $g_opt_none + $opt_category, $flt->cat);
?>
  <div class="d-flex flex-nowrap gap-2">
    <label for="flt_txt">Text</label>
    <input type="text" class="form-control" name="flt_txt" maxlength="30" value="<?=$flt->txt;?>">
  </div>
</div>
<div class="card-footer">
  <button name="submit[filter]" class="btn btn-sm btn-primary" title="<?=_('Apply')?>"><?=_('Go')?></button>
  <button name="submit[freset]" class="btn btn-sm btn-secondary float-end" title="<?=_('Reset filter to defaults')?>"><?=_('Clear')?></button>
</div>
</div>
</form>

<?php
// Pagination on top
$pagination = get_pagination($g_scriptname, '', $page, $lastpage);
echo $pagination;

echo '<table class="table table-striped">', "\n";
echo "<thead>\n";
echo "<tr>\n";
echo '<th>#</th>';
echo '<th>', _('Description'),  "</th>";
echo '<th>', _('Number'), "</th>";
echo '<th>', _('Unit'), "</th>";
echo '<th>', _('Stored'), "</th>";
echo '<th>', _('Best before'), "</th>";
echo "<th></th>"; // Meter
echo "<th></th>\n"; // Buttons
echo "</tr>\n";
echo "</thead>\n";

$i = ($page - 1) * $rows_pp;
$i0 = $i + 1;
foreach ($res as $row) {
    $i++; // record number
    echo "<tr>\n";
    echo "<td>", $i;
    echo '<a class="text-nowrap" title="', _('View'), '" href="', $g_scriptname, '?f=view&id=', $row['provid'], '"><i class="bi bi-eye ms-2"></i></a>', "\n";
    echo "</td>\n";
    echo "<td>", ! isset($row['sid']) ? '<i class="bi bi-cart3"></i> ' : '', $row['provname'], "</td>\n";
    echo '<td>', $row['number'];
    if ($row['target']) echo ' (', $row['target'], ')';
    echo  "</td>\n";
    echo "<td>", $opt_unit[$row['unit']], "</td>\n";
    echo "<td>", $row['storedate'], "</td>\n";
    echo "<td>", $row['shelflife'], "</td>\n";
    // TODO shelflife in der Vergangenheit
    echo "<td>";
    if ($row['d1'] > 0) {
        echo '<meter min="0" max="', $row['d0'], '" value="', $row['d1'], '"></meter>';
    } else {
        if ($row['d1'] < 0) {
            echo '<i class="bi bi-exclamation-triangle-fill"></i>&nbsp;', abs($row['d1']);
        }
    }
    echo "</td>\n";
    // Edit current record button
    echo "<td>";
    echo '<a title="', _('Edit'), '" href="', $g_scriptname, '?f=edit&id=', $row['provid'], '"><i class="bi-pencil"></i></a>';
    echo "</td>\n";

    echo "</tr>\n";
}
// Table summary
table_rec_summary($i0, $i, $numrows, 8);
echo "</table>\n";

echo $pagination;

form_add_button($g_scriptname);

// Shopping list button
echo '<div class="container-fluid px-0 my-3">', "\n";
echo '  <a href="', $g_scriptname, '?f=list" class="btn btn-secondary">',_('Shopping list'), "</a>\n";
echo "</div>\n";

elseif ($action == ACT_ADD):
// ========== VARIANT: add record =============================================

echo '<h2>', _('Add provisions'), "</h2>\n";
?>
<form method="post" action="<?=$g_scriptname?>">
<div class="mb-3">
  <label for="provname" class="form-label"><?=_('Name')?></label>
  <input type="text" class="form-control" id="provname" name="provname" required autofocus>
</div>
<div class="mb-3">
  <label for="number"><?=_('Number')?></label>
  <input type="number" min="0" max="1000" class="form-control" id="number" name="number" value="1">
</div>
<?php form_create_select('unit', _('Unit'), $opt_unit); ?>
<div class="mb-3">
  <label for="storedate"><?=_('Storedate')?></label>
  <input type="date" class="form-control" id="storedate" name="storedate" value="<?php echo date('Y-m-d'); ?>">
</div>
<div class="mb-3">
  <label for="shelflife"><?=_('Shelflife')?></label>
  <input type="date" class="form-control" id="shelflife" name="shelflife">
</div>
<?php form_create_select('sid', _('Storage'), $g_opt_none + $opt_storage); ?>
<div class="container-fluid px-0 my-3">
  <button type="submit" name="submit[insert]" class="btn btn-primary"><?=_('Save')?></button>
  <a href="<?=$g_scriptname?>" class="btn btn-secondary"><?=_('Back')?></a>
</div>
</form>
<?php

elseif ($action == ACT_VIEW):
// ========== VARIANT: view single record =====================================

$sql = "SELECT provname, provcat, number, target, unit, weight, weight_net,"
     . "    calories, storedate, shelflife, price, sid, remarks "
     . "FROM provisions "
     . "WHERE provid=?";
$sth = $pdo->prepare($sql);
$sth->execute([$id]);
$prov = $sth->fetch(PDO::FETCH_OBJ);

echo '<h2>', $prov->provname, "</h2>\n";

echo '<table class="table">', "\n";
echo '<tr><th style="width:20%">', _('Number'),"</th><td>", $prov->number, "</td></tr>\n";
echo "<tr><th>", _('Target'), "</th><td>", $prov->target, "</td></tr>\n";
echo "<tr><th>", _('Weight'), "</th><td>", format_float($prov->weight, 2, 'kg'), "</td></tr>\n";
echo "<tr><th>", _('Weight net'), "</th><td>", format_float($prov->weight_net, 2, 'kg'), "</td></tr>\n";
echo '<tr><th>', _('Unit'),"</th><td>", $opt_unit[$prov->unit], "</td></tr>\n";
echo "<tr><th>", _('Calories'), "</th><td>", $prov->calories, " kcal</td></tr>\n";
echo '<tr><th>', _('Category'),"</th><td>", $opt_category[$prov->provcat] ?? 'n/a', "</td></tr>\n";
echo '<tr><th>', _('Storedate'),"</th><td>", $prov->storedate, "</td></tr>\n";
echo '<tr><th>', _('Shelflife'),"</th><td>", $prov->shelflife, "</td></tr>\n";
echo '<tr><th>', _('Price'), "</th><td>", format_currency($prov->price), "</td></tr>\n";
echo '<tr><th>', _('Storage'),"</th><td>", ($opt_storage[$prov->sid] ?? ''), "</td></tr>\n";
echo '<tr><th>', _('Remarks'),"</th><td>", nl2br($prov->remarks), "</td></tr>\n";
echo "</table>\n";

form_view_buttons($g_scriptname, $id);

elseif ($action == ACT_EDIT):
// ========== VARIANT: edit single record =====================================

$sql = "SELECT provname, provcat, number, target, unit, weight, weight_net,"
     . "    calories, storedate, shelflife, price, sid, remarks "
     . "FROM provisions "
     . "WHERE provid=?";
$sth = $pdo->prepare($sql);
$sth->execute([$id]);
$prov = $sth->fetch(PDO::FETCH_OBJ);

echo '<h2>', _('Edit provision'), "</h2>\n";
?>
<form method="post" action="<?=$g_scriptname?>">
<input type="hidden" name="id" value="<?=$id?>">
<div class="mb-3">
  <label for="provname" class="form-label"><?=_('Name')?></label>
  <input type="text" class="form-control" id="provname" name="provname" value="<?=$prov->provname ?>">
</div>
<div class="mb-3">
  <label for="number"><?=_('Number')?></label>
  <input type="number" min="0" max="1000" class="form-control" id="number" name="number" value="<?=$prov->number ?>">
</div>
<div class="mb-3">
  <label for="target"><?=_('Target')?></label>
  <input type="number" min="0" max="1000" class="form-control" id="target" name="target" value="<?=$prov->target ?>">
</div>
<div class="mb-3">
  <label for="weight" class="form-label"><?=_('Weight, kg')?></label>
  <input type="text" class="form-control" id="weight" name="weight" value="<?=format_float($prov->weight); ?>">
</div>
<div class="mb-3">
  <label for="weight_net" class="form-label"><?=_('Weight net, kg')?></label>
  <input type="text" class="form-control" id="weight" name="weight_net" value="<?=format_float($prov->weight_net); ?>">
</div>
<?php 
form_create_select('unit', _('Unit'), $opt_unit, $prov->unit);
?>
<div class="mb-3">
  <label for="target"><?=_('Calories per Unit (kcal)')?></label>
  <input type="number" min="0" max="65000" class="form-control" id="calories" name="calories" value="<?=$prov->calories ?>">
</div>
<?php
form_create_select('provcat', _('Category'), $g_opt_none + $opt_category, $prov->provcat);
?>
<div class="mb-3">
  <label for="storedate"><?=_('Storedate')?></label>
  <input type="date" class="form-control" id="storedate" name="storedate" value="<?=$prov->storedate ?>">
</div>
<div class="mb-3">
  <label for="shelflife"><?=_('Shelflife')?></label>
  <input type="date" class="form-control" id="shelflife" name="shelflife" value="<?=$prov->shelflife ?>">
</div>
<div class="mb-3">
  <label for="price" class="form-label"><?=sprintf(_('Price, %s'), $g_lconv['currency_symbol']); ?></label>
  <input type="text" class="form-control" id="price" name="price" value="<?=format_float($prov->price) ?>">
</div>
<?php
form_create_select('sid', _('Storage'), $g_opt_none + $opt_storage, $prov->sid);
?>
<div class="mb-3">
  <label for="remarks" class="form-label"><?=_('Remarks')?></label>
  <textarea class="form-control" id="remarks" name="remarks" rows="3" maxlength="150"><?=$prov->remarks ?></textarea>
</div>
<?php
form_edit_buttons($g_scriptname, $id);
echo "</form>\n";


elseif ($action == ACT_DELETE):
// ========== VARIANT: delete record ==========================================

echo '<h2>', _('Delete provisions'), "</h2>\n";

?>
<p>Not yet implemented!</p>
<?php
elseif ($action == ACT_VIEW_LIST):
// ========== VARIANT: shopping list ==========================================

echo '<h2>', _('Shopping list'), "</h2>\n";

$sql = "SELECT provid, provname, unit, target - number AS buy "
     . "FROM provisions "
     . "WHERE target IS NOT NULL AND number < target "
     . "ORDER BY provcat, provname";
$sth = $pdo->query($sql);
$res = $sth->fetchAll();
echo "<pre>";
foreach ($res as $row) {
    echo $row['provname'];
    echo ' ';
    echo $row['buy'];
    echo ' ';
    echo $opt_unit[$row['unit']], "\n";
}
echo "</pre>";
echo '<div class="container-fluid px-0 my-3">', "\n";
echo '  <a href="shopping.php" class="btn btn-primary" target="_blank">',_('Use'), "</a>\n";
echo '  <a href="', $g_scriptname, '" class="btn btn-secondary">',_('Back'), "</a>\n";
echo "</div>\n";

else:
// ========== ERROR UNKNOWN VARIANT ===========================================

echo '<p>', _('Unknown function call: Please report to system development!'), "</p>\n";

endif; // $action == ...
// ========== END OF VARIANTS =================================================

include 'footer.php';