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

require 'globals.inc';
$pagetitle=_('Inventory');

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

$opt_storage = db_get_opt_storage($user->vid);
$opt_box = db_get_opt_box($user->vid);

// ========== 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 'insert':
        $invname = gpc_get_string($_POST, 'invname');
        $number = gpc_get_int($_POST, 'number');
        $boxtype = gpc_get_string($_POST, 'boxtype');
        $sid = gpc_get_int($_POST, 'sid');
        $boxid = gpc_get_int($_POST, 'boxid');
        $sql = "INSERT INTO inventory "
             . "    (invname, invcond, number, boxtype, sid, boxid) "
             . "VALUES "
             . "    (:invname, 'good', :number, :boxtype, :sid, :boxid)";
        $sth = $pdo->prepare($sql);
        $sth->bindValue(':invname', $invname, PDO::PARAM_STR);
        $sth->bindValue(':number', $number, PDO::PARAM_INT);
        $sth->bindValue(':boxtype', $boxtype, PDO::PARAM_STR);
        $sth->bindValue(':sid', $sid, PDO::PARAM_INT);
        $sth->bindValue(':boxid', $boxid, PDO::PARAM_INT);
        try {
            $sth->execute();
        } catch (PDOException $e) {
            $g_error->Add('SQL-Error: '. $e->getMessage());
        }
        $id = $pdo->LastInsertId();
        $action = ACT_VIEW;
        break;

    case 'update':
        $invname = gpc_get_string($_POST, 'invname');
        $number = gpc_get_int($_POST, 'number');
        $boxtype = gpc_get_string($_POST, 'boxtype');
        $sid = gpc_get_int($_POST, 'sid');
        $boxid = gpc_get_int($_POST, 'boxid');
        $weight = min(gpc_get_float($_POST, 'weight'), 999.99); // limit max value
        $price = gpc_get_currency($_POST, 'price');
        $purchdate = gpc_get_date($_POST, 'purchdate');
        $invcond = gpc_get_string($_POST, 'invcond');
        $sql = "UPDATE inventory "
             . "SET invname=:invname,"
             . "    number=:number,"
             . "    boxtype=:boxtype,"
             . "    sid=:sid,"
             . "    boxid=:boxid,"
             . "    weight=:weight,"
             . "    price=:price,"
             . "    purchdate=:purchdate,"
             . "    invcond=:invcond "
             . "WHERE invid=:invid";
        $sth = $pdo->prepare($sql);
        $sth->bindValue(':invid', $id, PDO::PARAM_INT);
        $sth->bindValue(':invname', $invname, PDO::PARAM_STR);
        $sth->bindValue(':number', $number, PDO::PARAM_INT);
        $sth->bindValue(':boxtype', $boxtype, PDO::PARAM_STR);
        $sth->bindValue(':sid', $sid, PDO::PARAM_INT);
        $sth->bindValue(':boxid', $boxid, PDO::PARAM_INT);
        $sth->bindValue(':weight', $weight);
        $sth->bindValue(':price', $price);
        $sth->bindValue(':purchdate', $purchdate);
        $sth->bindValue(':invcond', $invcond, PDO::PARAM_STR);
        try {
            $sth->execute();
        } catch (PDOException $e) {
            $g_error->Add('SQL-Error: '. $e->getMessage());
        }
        $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!'));
            $action = ACT_VIEW;
            break;
        }
        unset($_SESSION['token']);
        $sth = $pdo->prepare("DELETE FROM inventory WHERE invid=?");
        $sth->execute([$id]);
        $g_message->Add(sprintf(_('Deleted inventory no. %d'), $id));
        $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 =======================================

/*
The only way to find out whether the inventory is on the current boat is to use
the box assignment. But this is also intentional to allow easy rearrangement.
*/

echo "<h1>$pagetitle</h1>\n";

$sql = "SELECT i.invid, i.invname, i.number, i.invcond, s.sname AS container "
     . "FROM inventory AS i JOIN storage AS s ON (i.boxtype='storage' AND i.sid=s.sid)"
     . "WHERE s.vid=:vid " 
     . "UNION "
     . "SELECT i.invid, i.invname, i.number, i.invcond, b.label AS container "
     . "FROM inventory AS i JOIN box AS b ON (i.boxtype='box' AND i.boxid=b.boxid) "
     . "    JOIN storage AS s ON (b.sid=s.sid) "
     . "WHERE s.vid=:vid " 
     . "ORDER BY invname";
$sth = $pdo->prepare($sql);
$sth->bindValue(':vid', $user->vid, PDO::PARAM_INT);
$sth->execute();
$res = $sth->fetchAll();
echo '<table class="table table-striped">', "\n";
echo "<thead>\n";
echo "<tr>\n";
echo "<th>" . _('Name') . "</th>\n";
echo "<th>" . _('Container') . "</th>";
echo "<th>" . _('Number') . "</th>";
echo "<th>" . _('Condition') . "</th>";
echo "</tr>\n";
echo "</thead>\n";
foreach ($res as $row) {
    echo "<tr>\n";
    echo '<td>', $row['invname'], "</td>\n";
    echo "<td>". $row['container'] ."</td>\n";
    echo "<td>". $row['number'] ."</td>\n";
    echo "<td>". $row['invcond'] ."</td>\n";
    form_action_buttons($g_scriptname, $row['invid']);
    echo "</tr>\n";
}
// Table summary
echo "<tfoot>\n";
echo '<tr><td colspan="6">', sprintf(_('%d records'), count($res)), '</td></tr>', "\n";
echo "</tfoot>\n";
echo "</table>\n";

form_add_button($g_scriptname);

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

echo '<h2>', _('Add Inventory'), "</h2>\n";
?>
<form method="post" action="<?=$g_scriptname?>">
<div class="mb-3">
  <label for="invname" class="form-label"><?=_('Name')?></label>
  <input type="text" class="form-control" id="invname" name="invname">
</div>
<div class="mb-3">
  <label for="number" class="form-label"><?=_('Number')?></label>
  <input type="number" class="form-control" id="number" name="number" value="1">
</div>
<div class="mb-3">
  <label for="boxtype" class="form-label"><?=_('Boxtype')?></label>
  <select class="form-select" name="boxtype" id="boxtype">
    <option value="box"><?=_('Box')?></option>
    <option value="storage"><?=_('Storage')?></option>
  </select>
</div>
<?php 
form_create_select('sid', _('Storage'), $opt_storage); 
form_create_select('boxid', _('Box'), $opt_box); 
?>
<div class="container-fluid px-0 my-3">
  <button type="submit" name="submit[insert]" class="btn btn-primary"><?=_('Save')?></button>
  <a href="<?=$g_scriptname?>" class="btn btn-secondary"><?=_('Back')?></a>
</div>
</form>
<?php

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

$sql = "SELECT invname, boxtype, sid, boxid, number, weight, price, purchdate, invcond "
     . "FROM inventory "
     . "WHERE invid=?";
$sth = $pdo->prepare($sql);
$sth->execute([$id]);
$inventory = $sth->fetch(PDO::FETCH_OBJ);

// boxtype can be storage or box
switch ($inventory->boxtype) {
    case 'storage':
        $sql = "SELECT sname, vid FROM storage WHERE sid=?";
        $sth = $pdo->prepare($sql);
        $sth->execute([$inventory->sid]);
        $row = $sth->fetch();
        $storagename = $row['sname'];
        $vid = $row['vid'];
        break;
    case 'box':
        // Future: Boxes can also be nested!
        //          Recursive Function "get_storage_for_box()"
        $sql = "SELECT sid, label FROM box WHERE boxid=?";
        // TODO Load additional box data
        $sth = $pdo->prepare($sql);
        $sth->execute([$inventory->boxid]);
        $box = $sth->fetch();
        $sql = "SELECT sname, vid FROM storage WHERE sid=?";
        $sth = $pdo->prepare($sql);
        $sth->execute([$box['sid']]);
        $row = $sth->fetch();
        $storagename = $row['sname'];
        $vid = $row['vid'];
        break;
}

echo '<h2>', $inventory->invname, "</h2>\n";

echo '<table class="table">', "\n";
echo '<tr><th style="width:20%">', _('Box type'),"</th><td>", $inventory->boxtype, "</td></tr>\n";

// Container with link
echo "<tr><th>", _('Container'),"</th><td>", sprintf(_('%s in %s'), $box['label'], $storagename);
echo "</td></tr>\n";

echo "<tr><th>", _('Location ID'), "</th><td>", $inventory->locationid, "</td></tr>\n";
echo "<tr><th>", _('Number'), "</th><td>", $inventory->number, "</td></tr>\n";
echo "<tr><th>", _('Weight'), "</th><td>", format_float($inventory->weight, 2, 'kg'), "</td></tr>\n";
echo "<tr><th>", _('Price'), "</th><td>", format_currency($inventory->price), "</td></tr>\n";
echo "<tr><th>", _('Purchase date'), "</th><td>", $inventory->purchdate, "</td></tr>\n";
echo "<tr><th>", _('Condition'), "</th><td>", $inventory->invcond, "</td></tr>\n";
echo "</table>\n";

form_view_buttons($g_scriptname, $id);

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

$sql = "SELECT invname, boxtype, sid, boxid, number, weight, price, purchdate, invcond "
     . "FROM inventory "
     . "WHERE invid=?";
$sth = $pdo->prepare($sql);
$sth->execute([$id]);
$inventory = $sth->fetch(PDO::FETCH_OBJ);

?>
<h2><?=_('Edit Inventory')?></h2>
<form method="post" action="<?=$g_scriptname?>">
<input type="hidden" name="id" value="<?=$id?>">
<div class="mb-3">
  <label for="invname" class="form-label"><?=_('Name')?></label>
  <input type="text" class="form-control" id="invname" name="invname" value="<?=$inventory->invname ?>">
</div>
<div class="mb-3">
  <label for="number" class="form-label"><?=_('Number')?></label>
  <input type="number" class="form-control" id="number" name="number" value="<?=$inventory->number ?>">
</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($inventory->weight); ?>">
</div>
<div class="mb-3">
  <label for="boxtype" class="form-label"><?=_('Boxtype')?></label>
  <select class="form-select" name="boxtype" id="boxtype">
    <option value="box"><?=_('Box')?></option>
    <option value="storage"><?=_('Storage')?></option>
  </select>
</div>
<?php 
form_create_select('sid', _('Storage'), $opt_storage); 
form_create_select('boxid', _('Box'), $opt_box); 
?>
<div class="mb-3">
  <label for="price" class="form-label"><?=sprintf(_('Price, %s'), $g_lconv['currency_symbol']); ?></label>
  <input type="text" class="form-control" id="price" name="price" value="<?=format_float($inventory->price) ?>">
</div>
<div class="mb-3">
  <label for="purchdate"><?=_('Purchase date')?></label>
  <input type="date" class="form-control" id="purchdate" name="purchdate" value="<?=$inventory->purchdate ?>">
</div>
<div class="mb-3">
  <label for="invcond" class="form-label"><?=_('Condition')?></label>
  <select name="invcond" id="invcond" class="form-control">
<?php
$cond = array(
    'good' => _('Good'),
    'normal' => _('Normal'),
    'bad' => _('Bad'),
    'repairable' => _('Repairable'),
    'defect' => _('Defect'),
    'unknown' => _('Unknown')
);
foreach ($cond as $k => $v) {
    echo '<option value="', $k, '"';
    if ($k == $inventory->invcond) {
        echo ' selected';
    }
    echo '>', $v. "</option>\n";
}
?>
  </select>
</div>

<?php

form_edit_buttons($g_scriptname, $id);
echo "</form>\n";

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

$sql = "SELECT invname FROM inventory WHERE invid=?";
$sth = $pdo->prepare($sql);
$sth->execute([$id]);
$inventory = $sth->fetch(PDO::FETCH_OBJ);

echo '<h2>', _('Delete Inventory'), "</h2>\n";
echo '<p>', sprintf(_('Record no. %d'), $id), "</p>\n";
echo '<p>Name: ', $inventory->invname, "</p>";

echo '<p>', _('Deleting an inventory item is final. There is no way back. Only delete if you are absolute sure.'), "</p>\n";
$_SESSION['token'] = bin2hex(random_bytes(8));
form_delete_buttons($g_scriptname, $id, $_SESSION['token']);

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

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

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

include 'footer.php';