Implement in-person transaction flow (close #7)

action.php

@@ -8,6 +8,7 @@
  * Make things happen when buttons are pressed and forms submitted.
  */
 require_once __DIR__ . "/required.php";
+require_once __DIR__ . "/lib/userinfo.php";
 
 if ($VARS['action'] !== "signout") {
     dieifnotloggedin();
@@ -30,6 +31,166 @@ function returnToSender($msg, $arg = "") {
 }
 
 switch ($VARS['action']) {
+    case "finish_transaction":
+        header("Content-Type: application/json");
+        $items = $VARS['items'];
+        $payments = $VARS['payments'];
+        $customer = $VARS['customer'];
+        $register = $VARS['register'];
+
+        if ($customer != "" && !$database->has('customers', ['customerid' => $customer])) {
+            exit(json_encode(["status" => "ERROR", "message" => lang("invalid customer", false)]));
+            // exit(json_encode(["status" => "ERROR", "message" => lang("", false)]));
+        }
+        if ($register != "" && !$database->has('registers', ['registerid' => $register])) {
+            exit(json_encode(["status" => "ERROR", "message" => lang("invalid register", false)]));
+        }
+        if ($register != "" && !$database->has('cash_drawer', ['AND' => ['registerid' => $register, 'close' => null]])) {
+            exit(json_encode(["status" => "ERROR", "message" => lang("cash not open", false)]));
+        }
+
+        $totalcharge = 0.00;
+        $totalpaid = 0.00;
+        foreach ($items as $i) {
+            $totalcharge += $i['each'] * $i['qty'];
+            if (!$binstack->has('items', ['itemid' => $i['id']])) {
+                exit(json_encode(["status" => "ERROR", "message" => lang("invalid item", false)]));
+            }
+        }
+        foreach ($payments as $p) {
+            if (!$database->has('payment_types', ['typename' => $p['type']])) {
+                exit(json_encode(["status" => "ERROR", "message" => lang("invalid payment type", false)]));
+            }
+            $totalpaid += $p['amount'];
+            if ($p['type'] == "giftcard") {
+                if (!$database->has('certificates', ['AND' => ['amount[>=]' => $p['amount'], 'deleted[!]' => 1, 'certcode' => $p['code']]])) {
+                    exit(json_encode(["status" => "ERROR", "message" => lang("invalid giftcard", false)]));
+                }
+            }
+        }
+
+        if ($totalcharge > $totalpaid) {
+            exit(json_encode(["status" => "ERROR", "message" => lang("insufficient payment", false)]));
+        }
+
+        $cashid = null;
+        if ($register != "") {
+            $cashid = $database->get('cash_drawer', 'cashid', ['AND' => ['registerid' => $register, 'close' => null]]);
+        }
+
+        $database->insert('transactions', [
+            'txdate' => date('Y-m-d H:i:s'),
+            'customerid' => ($customer != "" ? $customer : null),
+            'type' => 1,
+            'cashier' => $_SESSION['uid'],
+            'cashid' => $cashid
+        ]);
+        $txid = $database->id();
+
+        foreach ($items as $i) {
+            $itemname = $binstack->get('items', 'name', ['itemid' => $i['id']]);
+            $database->insert('lines', [
+                'txid' => $txid,
+                'amount' => $i['each'],
+                'name' => $itemname,
+                'itemid' => $i['id'],
+                'qty' => $i['qty']
+            ]);
+        }
+
+        foreach ($payments as $p) {
+            $certid = null;
+            if ($p['type'] == "giftcard") {
+                $certid = $database->get('certificates', 'certid', ['certcode' => $p['code']]);
+            }
+            $type = $database->get('payment_types', 'typeid', ['typename' => $p['type']]);
+            $database->insert('payments', [
+                'amount' => $p['amount'],
+                'data' => '',
+                'type' => $type,
+                'txid' => $txid,
+                'certid' => $certid
+            ]);
+        }
+
+        exit(json_encode(["status" => "OK", "txid" => $txid]));
+
+        break;
+    case "getreceipt":
+        header("Content-Type: text/html");
+        if (!$database->has('transactions', ['txid' => $VARS['txid']])) {
+            exit(json_encode(["status" => "ERROR", "txid" => null]));
+        }
+
+        $tx = $database->get('transactions', ['txid', 'txdate', 'customerid', 'type', 'cashier'], ['txid' => $VARS['txid']]);
+
+        $txid = $tx['txid'];
+        $datetime = date(DATETIME_FORMAT, strtotime($tx['txdate']));
+        $type = $tx['type'];
+        $cashier = getUserByID($tx['cashier'])['name'];
+        $customerid = $tx['customerid'];
+        $customerline = (is_null($customerid) ? "" : "<br />Customer: $customerid");
+
+        $itemhtml = "";
+        $items = $database->select('lines', ['amount', 'name', 'itemid', 'qty'], ['txid' => $txid]);
+        $total = 0.0;
+        foreach ($items as $i) {
+            $itemhtml .= "\n";
+            $itemhtml .= '<div class="flexrow">';
+            $itemhtml .= '<div>' . $i['name'] . '</div>';
+            $itemhtml .= '<div>$' . $i['amount'] . '</div>';
+            $itemhtml .= '<div>x' . $i['qty'] . '</div>';
+            $itemhtml .= '<div>$' . ($i['qty'] * $i['amount']) . '</div>';
+            $itemhtml .= '</div>';
+            $total += ($i['qty'] * $i['amount']);
+        }
+
+        $paymenthtml = "";
+        $payments = $database->select('payments', [
+            '[>]payment_types' => ['type' => 'typeid']
+                ], [
+            'amount', 'type', 'typename', 'text'
+                ], [
+            'txid' => $txid
+        ]);
+        foreach ($payments as $p) {
+            $paymenthtml .= "\n";
+            $paymenthtml .= '<div class="flexrow">';
+            $paymenthtml .= '<div>' . lang($p['text'], false) . '</div>';
+            $paymenthtml .= '<div>$' . $p['amount'] . '</div>';
+            $paymenthtml .= '</div>';
+        }
+
+
+        $html = <<<END
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Tx #$txid</title>
+<style nonce="$SECURE_NONCE">
+.flexrow {
+    display: flex;
+    justify-content: space-between;
+}
+</style>
+<hr />
+Date: $datetime<br />
+Tx. ID: $txid<br />
+Cashier: $cashier
+$customerline
+<hr />
+<div id="items">
+$itemhtml
+</div>
+<hr />
+<div id="payments">
+$paymenthtml
+</div>
+<hr />
+<b>Total: $$total</b>
+END;
+        exit($html);
+        break;
     case "itemsearch":
         header("Content-Type: application/json");
         if (!is_empty($VARS['q'])) {
@@ -52,6 +213,18 @@ switch ($VARS['action']) {
                 ], $where);
         $items = (count($items) > 0 ? $items : false);
         exit(json_encode(["status" => "OK", "items" => $items]));
+    case "giftcard_lookup":
+        header("Content-Type: application/json");
+        $code = $VARS['code'];
+        if (empty($code)) {
+            exit(json_encode(["status" => "ERROR", "cards" => []]));
+        }
+        $cards = $database->select('certificates', ['certid (id)', 'certcode (code)', 'amount (balance)', 'start_amount (amount)'], ['certcode' => $code]);
+        exit(json_encode(["status" => "OK", "cards" => $cards]));
+        break;
+    case "session_keepalive":
+        header("Content-Type: application/json");
+        exit(json_encode(["status" => "OK"]));
     case "signout":
         session_destroy();
         header('Location: index.php');

lang/en_us.php

@@ -31,5 +31,18 @@ define("STRINGS", [
     "home" => "Home",
     "point of sale" => "Point of Sale",
     "barcode" => "Barcode",
-    "barcode or search" => "Barcode or Search"
+    "barcode or search" => "Barcode or Search",
+    "cash" => "Cash",
+    "check" => "Check",
+    "card" => "Card",
+    "crypto" => "Crypto",
+    "gift card" => "Gift Card",
+    "free" => "Free",
+    "paid" => "Paid",
+    "owed" => "Owed",
+    "change" => "Change",
+    "enter payment" => "Enter Payment",
+    "receipt" => "Receipt",
+    "close" => "Close",
+    "print" => "Print",
 ]);

pages.php

@@ -15,8 +15,14 @@ define("PAGES", [
         "title" => "point of sale",
         "navbar" => true,
         "icon" => "far fa-money-bill-alt",
+        "styles" => [
+            "static/css/pos.css",
+        ],
         "scripts" => [
             "static/js/bsalert.js",
+            "static/js/pos_items.js",
+            "static/js/pos_payment.js",
+            "static/js/pos_finish.js",
             "static/js/pos.js",
         ]
     ],

pages/pos.php

@@ -5,6 +5,26 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 ?>
+<div class="modal" tabindex="-1" role="dialog" id="receiptmodal">
+    <div class="modal-dialog" role="document">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title"><?php lang("receipt"); ?></h5>
+                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                    <span aria-hidden="true">&times;</span>
+                </button>
+            </div>
+            <div class="modal-body">
+                <iframe class="w-100" id="receiptframe"></iframe>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-dismiss="modal"><?php lang("close"); ?></button>
+                <button type="button" class="btn btn-primary" id="receiptprintbtn"><i class="fas fa-print"></i> <?php lang("print"); ?></button>
+            </div>
+        </div>
+    </div>
+</div>
+
 <div class="row">
     <div class="col-12 col-md-6 order-1 order-md-0">
         <div class="card d-flex">
@@ -20,7 +40,7 @@
                 </div>
             </div>
             <div>
-                <div class="list-group" id="pos-lines-box">
+                <div class="list-group list-group-flush" id="pos-lines-box">
                     <!-- Items go here -->
                 </div>
             </div>
@@ -29,7 +49,46 @@
 
     <div class="col-12 col-md-6 order-0 order-md-1">
         <div class="card mb-3 mb-md-0">
-            <div class="display-4 p-1 p-md-3 text-center">$<span class="grand-total">0.00</span></div>
+            <div class="display-4 p-1 p-md-3 text-center">$<span id="grand-total">0.00</span></div>
+            <div class="card-body">
+                <span class="btn btn-green btn-lg btn-block" id="paymentbtn"><i class="fas fa-money-bill-wave"></i> <?php lang("enter payment"); ?></span>
+            </div>
+            <div class="d-none" id="paymentui">
+                <div class="card-body">
+                    <div class="d-flex justify-content-around flex-wrap">
+                        <?php
+                        $payment_methods = $database->select('payment_types', ['typeid (id)', 'typename (name)', 'icon', 'text']);
+                        foreach ($payment_methods as $data) {
+                            ?>
+                            <div class="card p-2 text-center m-1 payment-method-button" data-payment-method="<?php echo $data['name']; ?>" data-icon="<?php echo $data['icon']; ?>" data-text="<?php lang($data['text']); ?>">
+                                <i class="<?php echo $data['icon']; ?> fa-3x fa-fw"></i>
+                                <?php lang($data['text']); ?>
+                            </div>
+                            <?php
+                        }
+                        ?>
+                    </div>
+                </div>
+                <hr />
+                <div class="row px-2 mb-3 text-center">
+                    <div class="col-12 col-sm-4">
+                        <?php lang("paid"); ?> $<span id="paid-amount">0.00</span>
+                    </div>
+                    <div class="col-12 col-sm-4">
+                        <?php lang("owed"); ?> $<span id="owed-amount">0.00</span>
+                    </div>
+                    <div class="col-12 col-sm-4">
+                        <?php lang("change"); ?> $<span id="change-amount">0.00</span>
+                    </div>
+                </div>
+                <div class="list-group list-group-flush" id="payment-lines">
+                    <!-- Payments go here -->
+                </div>
+
+                <div class="card-body">
+                    <span class="btn btn-green btn-lg btn-block" id="finishbtn"><i class="fas fa-receipt"></i> <?php lang("finish"); ?></span>
+                </div>
+            </div>
         </div>
     </div>
 </div>

required.php

@@ -39,7 +39,7 @@ if ($_SESSION['mobile'] === TRUE) {
             . "object-src 'none'; "
             . "img-src * data:; "
             . "media-src 'self'; "
-            . "frame-src 'none'; "
+            . "frame-src 'self'; "
             . "font-src 'self'; "
             . "connect-src *; "
             . "style-src 'self' 'unsafe-inline' $captcha_server; "
@@ -50,7 +50,7 @@ if ($_SESSION['mobile'] === TRUE) {
             . "object-src 'none'; "
             . "img-src * data:; "
             . "media-src 'self'; "
-            . "frame-src 'none'; "
+            . "frame-src 'self'; "
             . "font-src 'self'; "
             . "connect-src *; "
             . "style-src 'self' 'nonce-$SECURE_NONCE' $captcha_server; "

settings.template.php

@@ -40,6 +40,9 @@ define("PORTAL_KEY", "123");
 // For supported values, see http://php.net/manual/en/timezones.php
 define("TIMEZONE", "America/Denver");
 
+define("DATETIME_FORMAT", "M j Y g:i A"); // 12 hour time
+#define("DATETIME_FORMAT", "M j Y G:i"); // 24 hour time
+
 // Base URL for site links.
 define('URL', '.');
 

static/css/app.css

@@ -52,18 +52,4 @@ body {
 .footer {
     margin-top: 10em;
     text-align: center;
-}
-
-input[type="number"]::-webkit-outer-spin-button,
-input[type="number"]::-webkit-inner-spin-button {
-    -webkit-appearance: none;
-    margin: 0;
-}
-input[type="number"] {
-    -moz-appearance: textfield;
-}
-
-#pos-lines-box {
-    max-height: calc(100vh - 200px);
-    overflow-y: scroll;
 }

static/css/pos.css

@@ -0,0 +1,28 @@
+/*
+This Source Code Form is subject to the terms of the Mozilla Public
+License, v. 2.0. If a copy of the MPL was not distributed with this
+file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+input[type="number"]::-webkit-outer-spin-button,
+input[type="number"]::-webkit-inner-spin-button {
+    -webkit-appearance: none;
+    margin: 0;
+}
+input[type="number"] {
+    -moz-appearance: textfield;
+}
+
+#pos-lines-box {
+    max-height: calc(100vh - 150px);
+    overflow-y: auto;
+}
+
+.payment-method-button {
+    cursor: pointer;
+}
+
+#receiptframe {
+    height: 50vh;
+    border: 0;
+}

static/js/bsalert.js

@@ -4,6 +4,49 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+function bsalert(title, message, okbtn, cancelbtn, callback) {
+    var html = '<div class="modal fade" id="bsalert">'
+            + '  <div class="modal-dialog">'
+            + '    <div class="modal-content">'
+            + '      <div class="modal-header">'
+            + '        <h5 class="modal-title" id="bsalert-title"></h5>'
+            + '        <button type="button" class="close" data-dismiss="modal" aria-label="Close">'
+            + '          <span aria-hidden="true">&times;</span>'
+            + '        </button>'
+            + '      </div>'
+            + '      <div class="modal-body" id="bsalert-body">'
+            + '        <div id="bsalert-message"></div>'
+            + '      </div>'
+            + '      <div class="modal-footer">'
+            + '        <button type="button" class="btn btn-secondary" data-dismiss="modal" id="bsalert-cancel">Cancel</button>'
+            + '        <button type="button" class="btn btn-primary" id="bsalert-ok">OK</button>'
+            + '      </div>'
+            + '    </div>'
+            + '  </div>'
+            + '</div>';
+    $("body").append(html);
+    $("#bsalert-title").text(title);
+    $("#bsalert-message").text(message);
+    if (typeof okbtn != "string") {
+        okbtn = "OK";
+    }
+    $("#bsalert-ok").text(okbtn);
+    if (typeof cancelbtn != "string") {
+        cancelbtn = "Cancel";
+    }
+    $("#bsalert-cancel").text(cancelbtn);
+    $("#bsalert-ok").on("click", function () {
+        if (typeof callback != 'undefined') {
+            callback();
+        }
+        $("#bsalert").modal("hide");
+    });
+    $("#bsalert").on("hidden.bs.modal", function () {
+        $("#bsalert").remove();
+    });
+    $("#bsalert").modal("show");
+}
+
 function bsprompt(title, message, okbtn, cancelbtn, type, callback) {
     var html = '<div class="modal fade" id="bsprompt">'
             + '  <div class="modal-dialog">'

static/js/pos.js

@@ -4,121 +4,12 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-function addItem(name, code, price) {
-    if ($(".list-group-item[data-code='" + code + "']").length) {
-        updateQty($(".list-group-item[data-code='" + code + "']").find(".qty-plus"), 1);
-        return;
-    }
-    price = (price * 1.0).toFixed(2);
-    $("#pos-lines-box").append('<div class="list-group-item" data-code="' + code + '">'
-            + '<div class="d-flex w-100 justify-content-between mb-2">'
-            + '<h5 class="item-name">'
-            + name
-            + '</h5>'
-            + '<h5>'
-            + '<small class="item-code mr-1">' + code + '</small>'
-            + '<span class="badge badge-light">'
-            + '$<span class="line-total">'
-            + price
-            + '</span>'
-            + '</span>'
-            + '</h5>'
-            + '</div>'
-            + '<div class="d-inline-flex">'
-            + '<div class="input-group qty-control">'
-            + '<div class="input-group-prepend">'
-            + '<span class="input-group-text pr-1"><b>$</b></span>'
-            + '</div>'
-            + '<input type="money" class="form-control item-price" value="' + price + '"/>'
-            + '<div class="input-group-prepend">'
-            + '<span class="input-group-text px-2"><i class="fas fa-times"></i></span>'
-            + '<button class="btn btn-red qty-minus" type="button"><i class="fas fa-trash"></i></button>'
-            + '</div>'
-            + '<input type="number" class="form-control item-qty px-2" value="1" />'
-            + '<div class="input-group-append">'
-            + '<button class="btn btn-light-green qty-plus" type="button"><i class="fas fa-plus"></i></button>'
-            + '</div>'
-            + '</div>'
-            + '</div>'
-            + '</div>');
-    recalculate();
-}
-
-function findItem(q) {
-    function decodeThenAddItem(item) {
-        var code = item.code1;
-        console.log(code);
-        if (code == "" && item["code2"] != "") {
-            code = item["code2"];
-        } else if (code == "") {
-            code = "---";
-        }
-        var price = item['price'];
-        if (price == null || price == "" || price == 0) {
-            if (!$(".list-group-item[data-code='" + code + "']").length) {
-                bsprompt("Enter Price",
-                        "No price set.  Enter a price for this item:",
-                        "Add Item",
-                        "Cancel",
-                        "number",
-                        function (result) {
-                            addItem(item['name'], code, result);
-                        });
-                return;
-            }
-        }
-        addItem(item['name'], code, price);
-    }
-    if (q == "") {
-        return;
-    }
-    $.get("action.php", {
-        action: "itemsearch",
-        q: q
-    }, function (data) {
-        if (data['items'].length == 1) {
-            decodeThenAddItem(data['items'][0]);
-        } else if (data['items'].length > 1) {
-            var options = [];
-            for (var i = 0; i < data['items'].length; i++) {
-                var text = data['items'][i]['name'];
-                if (data['items'][i]['price'] != null) {
-                    text += " <span class=\"ml-auto\">$" + data['items'][i]['price'] + "</span>";
-                }
-                options.push({"text": text, "val": data['items'][i]['id']});
-            }
-            bschoices(
-                    "Multiple Results",
-                    "More than one item match the query.  Pick the correct one:",
-                    options,
-                    "Cancel",
-                    function (result) {
-                        for (var i = 0; i < data['items'].length; i++) {
-                            if (data['items'][i]['id'] == result) {
-                                decodeThenAddItem(data['items'][i]);
-                                break;
-                            }
-                        }
-                    }
-            );
-        }
-    }).fail(function () {
-        alert("Error");
-    });
-}
-
-function removezero() {
-    $("#pos-lines-box .list-group-item").each(function () {
-        var qty = $(".item-qty", this).val() * 1.0;
-        if (qty == 0) {
-            $(this).remove();
-        }
-    });
-}
-
 function recalculate() {
     removezero();
     var total = 0.0;
+    var paid = 0.0;
+    var remaining = 0.0;
+    var change = 0.0;
     $("#pos-lines-box .list-group-item").each(function () {
         var each = $(".item-price", this).val() * 1.0;
         var qty = $(".item-qty", this).val() * 1.0;
@@ -128,56 +19,34 @@ function recalculate() {
         console.log(each.toFixed(2));
         total += line;
     });
-    $(".grand-total").text(total.toFixed(2));
-}
 
-function updateQty(btn, diff) {
-    var qtybox = $(btn).parent().parent().find(".item-qty");
-    var qty = parseInt(qtybox.val());
-    qty += diff;
-    if (qty > 0) {
-        qtybox.val(qty);
-        var minbtn = $(btn).parent().parent().find(".qty-minus");
-        if (qty == 1) {
-            minbtn.html("<i class=\"fas fa-trash\"></i>");
-        } else {
-            minbtn.html("<i class=\"fas fa-minus\"></i>");
-        }
+    $("#payment-lines .list-group-item").each(function () {
+        var line = $(".payment-entry", this).val() * 1.0;
+        paid += line;
+    });
+
+    remaining = total - paid;
+    change = (total - paid) * -1.0;
+    if (remaining <= 0) {
+        remaining = 0.0;
+        $("#owed-amount").parent().removeClass("font-weight-bold");
     } else {
-        qtybox.closest(".list-group-item").remove();
+        $("#owed-amount").parent().addClass("font-weight-bold");
     }
-    recalculate();
+
+    if (change <= 0) {
+        change = 0.0;
+        $("#change-amount").parent().removeClass("font-weight-bold");
+    } else {
+        $("#change-amount").parent().addClass("font-weight-bold");
+    }
+
+    $("#grand-total").text(total.toFixed(2));
+    $("#paid-amount").text(paid.toFixed(2));
+    $("#owed-amount").text(remaining.toFixed(2));
+    $("#change-amount").text(change.toFixed(2));
 }
 
-$("#pos-lines-box").on("click", ".qty-minus", function () {
-    updateQty(this, -1);
-});
-
-$("#pos-lines-box").on("click", ".qty-plus", function () {
-    updateQty(this, 1);
-});
-
-$("#pos-lines-box").on("change", ".item-qty,.item-price", function () {
-    recalculate();
-});
-
-$("#pos-lines-box").on("keypress", ".item-qty,.item-price", function (e) {
-    if (e.which === 13) {
-        recalculate();
-    }
-});
-
-$("#barcode").on('keypress', function (e) {
-    if (e.which === 13) {
-        findItem($("#barcode").val());
-        $("#barcode").val("");
-    }
-});
-
-$("#barcodebtn").on("click", function () {
-    findItem($("#barcode").val());
-    $("#barcode").val("");
-});
 
 $("body").on("keypress", "input[type=money],input[type=number]", function (e) {
     //console.log(String.fromCharCode(e.which) + "|" + e.which);
@@ -193,4 +62,7 @@ $("body").on("keypress", "input[type=money],input[type=number]", function (e) {
     }
 });
 
-$("#barcode").focus();
+// Make sure the session doesn't expire
+setInterval(function () {
+    $.get("action.php", {action: "session_keepalive"});
+}, 1000 * 60);

static/js/pos_finish.js

@@ -0,0 +1,82 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function sendTransactionToServer(callback) {
+    var items = [];
+    var payments = [];
+    var customer = '';
+    var register = '';
+    $("#pos-lines-box .list-group-item").each(function () {
+        var each = $(".item-price", this).val() * 1.0;
+        var qty = $(".item-qty", this).val() * 1.0;
+        var code = $(this).data("code");
+        var id = $(this).data("itemid");
+        items.push({
+            each: each,
+            qty: qty,
+            code: code,
+            id: id
+        });
+    });
+    $("#payment-lines .list-group-item").each(function () {
+        var amount = $(".payment-entry", this).val() * 1.0;
+        var type = $(".payment-entry", this).data("type");
+        var code = '';
+        if ($(".giftcard-number", this).length) {
+            code = $(".giftcard-number", this).val();
+        }
+        payments.push({
+            amount: amount,
+            type: type,
+            code: code
+        });
+    });
+
+    $.post("action.php", {
+        action: "finish_transaction",
+        items: items,
+        payments: payments,
+        customer: customer,
+        register: register
+    }, function (data) {
+        if (data.status == "OK") {
+            callback(data);
+        } else {
+            bsalert("Error", "The transaction could not be completed:<br />" + data.message);
+        }
+    }).fail(function () {
+        bsalert("Error", "The transaction could not be completed due to an unknown error.");
+    });
+}
+
+function showReceipt(txid) {
+    $("#receiptframe").attr("src", 'action.php?action=getreceipt&txid=' + txid);
+    $("#receiptmodal").modal();
+}
+
+function finishTransaction() {
+    sendTransactionToServer(function (data) {
+        showReceipt(data.txid);
+    });
+}
+
+$("#finishbtn").click(function () {
+    recalculate();
+    var owed = $("#owed-amount").text() * 1.0;
+    if (owed > 0) {
+        bsalert("Incomplete Transaction", "The customer still owes $" + owed.toFixed(2) + ".  Add a payment or remove items until everything is paid for.");
+    } else {
+        finishTransaction();
+    }
+});
+
+$("#receiptprintbtn").click(function () {
+    document.getElementById("receiptframe").contentWindow.print();
+})
+
+$("#receiptmodal").on("hide.bs.modal", function () {
+    window.location.reload();
+});

static/js/pos_items.js

@@ -0,0 +1,167 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function addItem(name, code, price, id) {
+    if ($(".list-group-item[data-code='" + code + "']").length) {
+        updateQty($(".list-group-item[data-code='" + code + "']").find(".qty-plus"), 1);
+        return;
+    }
+    price = (price * 1.0).toFixed(2);
+    $("#pos-lines-box").append('<div class="list-group-item" data-code="' + code + '" data-itemid="' + id + '">'
+            + '<div class="d-flex w-100 justify-content-between mb-2">'
+            + '<h5 class="item-name">'
+            + name
+            + '</h5>'
+            + '<h5>'
+            + '<small class="item-code mr-1">' + code + '</small>'
+            + '<span class="badge badge-light">'
+            + '$<span class="line-total">'
+            + price
+            + '</span>'
+            + '</span>'
+            + '</h5>'
+            + '</div>'
+            + '<div class="d-inline-flex">'
+            + '<div class="input-group qty-control">'
+            + '<div class="input-group-prepend">'
+            + '<span class="input-group-text pr-1"><b>$</b></span>'
+            + '</div>'
+            + '<input type="money" class="form-control item-price" value="' + price + '"/>'
+            + '<div class="input-group-prepend">'
+            + '<span class="input-group-text px-2"><i class="fas fa-times"></i></span>'
+            + '<button class="btn btn-red qty-minus" type="button"><i class="fas fa-trash"></i></button>'
+            + '</div>'
+            + '<input type="number" class="form-control item-qty px-2" value="1" />'
+            + '<div class="input-group-append">'
+            + '<button class="btn btn-light-green qty-plus" type="button"><i class="fas fa-plus"></i></button>'
+            + '</div>'
+            + '</div>'
+            + '</div>'
+            + '</div>');
+    recalculate();
+}
+
+function findItem(q) {
+    function decodeThenAddItem(item) {
+        var code = item.code1;
+        console.log(code);
+        if (code == "" && item["code2"] != "") {
+            code = item["code2"];
+        } else if (code == "") {
+            code = "---";
+        }
+        var price = item['price'];
+        if (price == null || price == "" || price == 0) {
+            if (!$(".list-group-item[data-code='" + code + "']").length) {
+                bsprompt("Enter Price",
+                        "No price set.  Enter a price for this item:",
+                        "Add Item",
+                        "Cancel",
+                        "number",
+                        function (result) {
+                            addItem(item['name'], code, result, item['id']);
+                        });
+                return;
+            }
+        }
+        addItem(item['name'], code, price, item['id']);
+    }
+    if (q == "") {
+        return;
+    }
+    $.get("action.php", {
+        action: "itemsearch",
+        q: q
+    }, function (data) {
+        if (data['items'].length == 1) {
+            decodeThenAddItem(data['items'][0]);
+        } else if (data['items'].length > 1) {
+            var options = [];
+            for (var i = 0; i < data['items'].length; i++) {
+                var text = data['items'][i]['name'];
+                if (data['items'][i]['price'] != null) {
+                    text += " <span class=\"ml-auto\">$" + data['items'][i]['price'] + "</span>";
+                }
+                options.push({"text": text, "val": data['items'][i]['id']});
+            }
+            bschoices(
+                    "Multiple Results",
+                    "More than one item match the query.  Pick the correct one:",
+                    options,
+                    "Cancel",
+                    function (result) {
+                        for (var i = 0; i < data['items'].length; i++) {
+                            if (data['items'][i]['id'] == result) {
+                                decodeThenAddItem(data['items'][i]);
+                                break;
+                            }
+                        }
+                    }
+            );
+        }
+    }).fail(function () {
+        alert("Error");
+    });
+}
+
+function removezero() {
+    $("#pos-lines-box .list-group-item").each(function () {
+        var qty = $(".item-qty", this).val() * 1.0;
+        if (qty == 0) {
+            $(this).remove();
+        }
+    });
+}
+
+function updateQty(btn, diff) {
+    var qtybox = $(btn).parent().parent().find(".item-qty");
+    var qty = parseInt(qtybox.val());
+    qty += diff;
+    if (qty > 0) {
+        qtybox.val(qty);
+        var minbtn = $(btn).parent().parent().find(".qty-minus");
+        if (qty == 1) {
+            minbtn.html("<i class=\"fas fa-trash\"></i>");
+        } else {
+            minbtn.html("<i class=\"fas fa-minus\"></i>");
+        }
+    } else {
+        qtybox.closest(".list-group-item").remove();
+    }
+    recalculate();
+}
+
+$("#pos-lines-box").on("click", ".qty-minus", function () {
+    updateQty(this, -1);
+});
+
+$("#pos-lines-box").on("click", ".qty-plus", function () {
+    updateQty(this, 1);
+});
+
+$("#pos-lines-box").on("change blur", ".item-qty,.item-price", function () {
+    recalculate();
+});
+
+$("#pos-lines-box").on("keypress", ".item-qty,.item-price", function (e) {
+    if (e.which === 13) {
+        recalculate();
+    }
+});
+
+$("#barcode").on('keypress', function (e) {
+    if (e.which === 13) {
+        findItem($("#barcode").val());
+        $("#barcode").val("");
+    }
+});
+
+$("#barcodebtn").on("click", function () {
+    findItem($("#barcode").val());
+    $("#barcode").val("");
+});
+
+$("#barcode").focus();

static/js/pos_payment.js

@@ -0,0 +1,111 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function addPayment(type, icon, text) {
+    var extrafield = "";
+    if (type == "giftcard") {
+        extrafield = ''
+                + '        <div class="input-group-prepend input-group-append">'
+                + '            <span class="input-group-text">'
+                + '                #'
+                + '            </span>'
+                + '        </div>'
+                + '        <input class="form-control giftcard-number" type="number" />';
+    }
+    var amount = "";
+    // Autofill the exact due amount for payment methods that are flexible like that
+    if (type == "check" || type == "card" || type == "crypto") {
+        if ($("#owed-amount").text() * 1.0 > 0) {
+            amount = ($("#owed-amount").text() * 1.0).toFixed(2);
+        }
+    }
+    $("#payment-lines").append(''
+            + '<div class="list-group-item">'
+            + '    <div class="input-group">'
+            + '        <div class="input-group-prepend">'
+            + '            <span class="input-group-text">'
+            + '                <i class="' + icon + ' fa-fw mr-1"></i> '
+            + text
+            + '            </span>'
+            + '        </div>'
+            + '        <div class="input-group-prepend">'
+            + '            <span class="input-group-text">'
+            + '                $'
+            + '            </span>'
+            + '        </div>'
+            + '        <input class="form-control payment-entry" type="money" data-type="' + type + '" value="' + amount + '" />'
+            + extrafield
+            + '        <div class="input-group-append">'
+            + '            <span class="btn btn-outline-danger remove-payment-btn">'
+            + '                <i class="fas fa-trash"></i>'
+            + '            </span>'
+            + '        </div>'
+            + '    </div>'
+            + '</div>');
+    $("#payment-lines .payment-entry").last().focus();
+}
+
+function checkGiftCardBalance() {
+    $("#payment-lines .list-group-item:has(.giftcard-number)").each(function () {
+        var paymentbox = $(".payment-entry", this);
+        var cardnumberbox = $(".giftcard-number", this);
+        var amount = paymentbox.val() * 1.0;
+        var cardnumber = cardnumberbox.val();
+        if (cardnumber == "") {
+            return;
+        }
+        $.get("action.php", {
+            action: "giftcard_lookup",
+            code: cardnumber
+        }, function (json) {
+            if (json.status == "OK") {
+                if (json.cards.length == 0) {
+                    bsalert("Invalid Gift Card", "Gift card #" + cardnumber + " does not exist.  Remove it to finish the transaction.");
+                    cardnumberbox.addClass('is-invalid');
+                } else if (json.cards.length == 1) {
+                    if (json.cards[0].balance < amount) {
+                        bsalert("Insufficient Gift Card Balance", "Gift card #" + cardnumber + " does not contain enough funds.  The amount has been set to the full amount remaining on the card ($" + json.cards[0].balance + ").");
+                        paymentbox.val(json.cards[0].balance);
+                    }
+                    cardnumberbox.removeClass('is-invalid');
+                } else {
+                    bsalert("Invalid Gift Card", "Unable to determine which gift card #" + cardnumber + " is referring to.  Remove it to finish the transaction.");
+                    cardnumberbox.addClass('is-invalid');
+                }
+            } else {
+                bsalert("Invalid Gift Card", "Unable to determine which gift card #" + cardnumber + " is referring to.  Remove it to finish the transaction.");
+                cardnumberbox.addClass('is-invalid');
+            }
+        });
+    });
+}
+
+$("#payment-lines").on("change keyup blur", ".payment-entry", function () {
+    recalculate();
+});
+
+$("#payment-lines").on("blur", ".giftcard-number,.payment-entry[data-type=giftcard]", function () {
+    checkGiftCardBalance();
+});
+
+$("#payment-lines").on("keypress", ".giftcard-number,.payment-entry[data-type=giftcard]", function (e) {
+    if (e.which === 13) {
+        checkGiftCardBalance();
+    }
+});
+
+$("#payment-lines").on("click", ".remove-payment-btn", function () {
+    $(this).closest(".list-group-item").remove();
+    recalculate();
+});
+
+$("#paymentbtn").click(function () {
+    $("#paymentui").removeClass("d-none");
+});
+
+$(".payment-method-button").click(function () {
+    addPayment($(this).data("payment-method"), $(this).data("icon"), $(this).data("text"));
+});