Add price editor

app/migrations/versions/55013fe95bea_create_price_modified_column.py

@@ -0,0 +1,21 @@
+"""Create price_modified column
+
+Revision ID: 55013fe95bea
+Revises: 9159a6fed021
+Create Date: 2022-04-22 01:00:03.729596
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '55013fe95bea'
+down_revision = '9159a6fed021'
+
+from alembic import op
+import sqlalchemy as sa
+
+def upgrade():
+    op.add_column('order_item', sa.Column('price_modified', sa.DateTime(), nullable=True))
+
+
+def downgrade():
+    op.drop_column('order_item', 'price_modified')

app/models/orderitem.py

@@ -18,6 +18,7 @@ class OrderItem(db.Model):
     dish_id = db.Column(db.String(64), nullable=True)
     dish_name = db.Column(db.String(120), nullable=True)
     price = db.Column(db.Integer, nullable=True)
+    price_modified = db.Column(db.DateTime, nullable=True)
     paid = db.Column(db.Boolean, default=False, nullable=True)
     comment = db.Column(db.Text(), nullable=True)
     hlds_data_version = db.Column(db.String(40), nullable=True)

app/templates/order.html

@@ -307,7 +307,12 @@
 								{%- endif %}
 								</div>
 
-								<div class="price_aligned">{{ item.price|euro }}</div>
+								<div class="price_aligned">
+									{{ item.price|euro }}
+									{% if item.price_modified %}
+										<span class="glyphicon glyphicon-pencil" style="opacity: 0.5" title="Edited"></span>
+									{% endif %}
+								</div>
 								<div class="item_description">{{ item.dish_name }}{{ "; " + item.comment if item.comment }}</div>
 							</li>
 						{% endfor %}
@@ -328,6 +333,14 @@
 			<button name="action" value="mark_unpaid" class="btn btn-sm">Mark unpaid</button>
 			<button disabled name="action" value="tab" class="btn btn-sm"><span class="glyphicon glyphicon-piggy-bank"></span> Tab (TODO)</button>
 			<button disabled name="action" value="qr" class="btn btn-sm"><span class="glyphicon glyphicon-qrcode"></span> QR code (TODO)</button>
+
+			{% if order.is_closed() %}
+				&nbsp; <span style="border-left: 1px solid var(--gray0); display: inline-block;">&nbsp;</span>&nbsp;
+				<a href="{{ url_for('order_bp.prices', order_id=order.id) }}" class="btn btn-sm">
+					<span class="glyphicon glyphicon-pencil"></span>  Edit prices
+				</a>
+			{% endif %}
+
 		</div>
 		</form>
 	</div>

app/templates/order_prices.html

@@ -0,0 +1,130 @@
+{% extends "layout.html" %}
+{% set active_page = "orders" -%}
+
+{% import "utils.html" as util %}
+
+{% block metas %}
+	{{ super() }}
+	<meta name="robots" content="noindex, nofollow">
+{% endblock %}
+
+{% block container %}
+<header>
+	<h2 id="order-title">Edit prices</h2>
+	<div>Only applied to <a href="{{ url_for('order_bp.order_from_id', order_id=order.id) }}">order {{ order.id }}</a>. To permanently change prices for {{ order.location_name }}, edit the <a href="https://git.zeus.gent/haldis/menus/-/blob/master/{{order.location_id}}.hlds">HLDS location definition</a>.</div>
+</header>
+
+<form action="{{ url_for('order_bp.prices', order_id=order.id) }}" method="post">
+	<div class="col-md-6" id="per_dish">
+		<h3>Per dish</h3>
+		<div class="noscript">This functionality requires JavaScript.</div>
+		<div class="script">
+
+			<table class="table table-condensed">
+				<thead>
+					<tr><th colspan="2">Dish</th><th>Price</th></tr>
+				</thead>
+				<tbody>
+				{% for dish_name, dish_quantity, dish_comment_groups in order.group_by_dish() -%}
+					{% set has_comments = dish_comment_groups | length > 1 or (dish_comment_groups | map("first") | any) -%}
+					{% for comment, items in dish_comment_groups -%}
+
+						<tr>
+							{% if loop.first %}
+							<td rowspan="{{dish_comment_groups | length }}">
+								<span class="quantity">{{ dish_quantity }}</span> ×
+								{{ dish_name }}
+							</td>
+							{% endif %}
+
+							<td>
+								<span class="quantity">{{ items | length }}</span> ×
+								{% if comment %}{{ comment }}
+								{% else %}<i>No comment</i>
+								{% endif %}
+							</td>
+
+							<td>
+								{% set price = items[0].price | euro("") %}
+								{% set item_ids = items | map(attribute="id") %}
+								€ <input type="text" data-for-items="{{ item_ids | join(",") }}" value="{{ price }}">
+							</td>
+						</tr>
+
+					{% endfor %}
+				{%- endfor %}
+				</tbody>
+			</table>
+		</div>
+	</div>
+
+	<div class="col-md-6" id="per_person">
+		<h3>Per person</h3>
+		<table class="table table-condensed">
+			<thead>
+				<tr><th>Name</th><th>Items</th></tr>
+			</thead>
+			<tbody>
+			{% for user_name, order_items in order.group_by_user() -%}
+				<tr>
+					<td>{{ user_name }}</td>
+					<td class="items">
+						<ul>
+						{% for item in order_items %}
+							<li class="{{ 'paid' if item.paid }}">
+								€ <input type="text" value="{{ item.price|euro("") }}" name="item_{{ item.id }}" id="item_{{ item.id }}">
+								<span class="item_description">{{ item.dish_name }}{{ "; " + item.comment if item.comment }}</span>
+							</li>
+						{% endfor %}
+						</ul>
+					</td>
+
+				</tr>
+			{%- endfor %}
+			</tbody>
+		</table>
+	</div>
+
+	<div>
+		<a href="{{ url_for('order_bp.order_from_id', order_id=order.id) }}" class="btn btn-sm">Cancel</a>
+		<button class="btn btn-sm btn-primary">Apply</button>
+	</div>
+</form>
+
+{% endblock %}
+
+{% block styles %}
+	{{ super() }}
+	<style>
+.script {
+	display: none;
+}
+
+#per_dish ul, #per_person ul {
+	list-style-type: none;
+	padding: 0;
+}
+
+#per_dish input, #per_person input {
+	width: 3em;
+}
+	</style>
+{% endblock %}
+
+{% block scripts %}
+	{{ super() }}
+	<script type="text/javascript">
+		"use strict";
+		$(window).on("load", () => {
+			$(".noscript").css("display", "none");
+			$(".script").css("display", "unset");
+
+			$("#per_dish input").on("change", e => {
+				console.log(e.target);
+				for (let item_id of e.target.dataset.forItems.split(",")) {
+					$("#item_" + item_id).val(e.target.value);
+				}
+			});
+		});
+	</script>
+{% endblock %}

app/utils.py

@@ -1,16 +1,25 @@
 "Script which contains several utils for Haldis"
 
-from typing import Iterable
+import re
+from typing import Iterable, Optional
 
 
-def euro_string(value: int) -> str:
+def euro_string(value: int, unit="€ ") -> str:
     """
     Convert cents to string formatted euro
     """
     euro, cents = divmod(value, 100)
     if cents:
-        return f"€ {euro}.{cents:02}"
-    return f"€ {euro}"
+        return f"{unit}{euro}.{cents:02}"
+    return f"{unit}{euro}"
+
+
+def parse_euro_string(value: str) -> Optional[int]:
+    m = re.fullmatch("(?:€ ?)?([0-9]+)(?:[.,]([0-9]+))?", value)
+    if not m:
+        return None
+    cents_02 = "{:0<2.2}".format(m.group(2)) if m.group(2) else "00"
+    return int(m.group(1)) * 100 + int(cents_02)
 
 
 def price_range_string(price_range, include_upper=False):

app/views/order.py

@@ -1,5 +1,6 @@
 "Script to generate the order related views of Haldis"
 import random
+import re
 import typing
 from datetime import datetime
 
@@ -11,7 +12,7 @@ from forms import AnonOrderItemForm, OrderForm, OrderItemForm
 from hlds.definitions import location_definition_version, location_definitions
 from models import Order, OrderItem, User, db
 from notification import post_order_to_webhook
-from utils import ignore_none
+from utils import ignore_none, parse_euro_string
 from werkzeug.wrappers import Response
 
 order_bp = Blueprint("order_bp", "order")
@@ -323,6 +324,54 @@ def close_order(order_id: int) -> typing.Optional[Response]:
     return None
 
 
+@order_bp.route("/<order_id>/prices", methods=["GET", "POST"])
+@login_required
+def prices(order_id: int) -> typing.Optional[Response]:
+    order = Order.query.filter(Order.id == order_id).first()
+    if order is None:
+        abort(404)
+    if (
+            current_user.is_anonymous() or
+            not (current_user.is_admin() or current_user.id == order.courier_id)
+    ):
+        flash("Only the courier can edit prices.", "error")
+        return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+    if not order.is_closed():
+        flash("Cannot modify prices until the order is closed.", "error")
+        return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+
+    if request.method == "GET":
+        return render_template(
+            "order_prices.html",
+            order=order,
+        )
+    else:
+        new_prices = {}
+
+        for key, value in request.form.items():
+            m = re.fullmatch("item_([0-9]+)", key)
+            if not m:
+                continue
+            item_id = int(m.group(1))
+
+            price = parse_euro_string(value)
+            if not price:
+                flash(f"Could not recognize '{value}' as a price")
+                continue
+
+            new_prices[item_id] = price
+
+        for item in order.items:
+            new_price = new_prices.get(item.id)
+            if new_price is not None and new_price != item.price:
+                item.price = new_price
+                item.price_modified = datetime.now()
+        db.session.commit()
+
+    return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+
+
+
 def select_user(items) -> typing.Optional[User]:
     "Select a random user from those who are signed up for the order"
     user = None