receipts: Implement DELETE

A receipt can now be deleted by clicking the little trash can icon on
its card on the receipt list page.  To make this look nice, I had to
adjust some of the CSS for that page.  Incidentally, I was able to get
the cards to be properly aligned by changing the images to be cropped
instead of scaled, via the `object-fit: cover` CSS property.

.sqlx/query-1b1fccb2e49acf1402b1c473d4eaebd46034214df37c1d5b954a69027c2c037f.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "DELETE FROM receipts WHERE id = $1",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Int4"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "1b1fccb2e49acf1402b1c473d4eaebd46034214df37c1d5b954a69027c2c037f"
+}

js/receipt-list.ts

@@ -1,5 +1,89 @@
+import "@shoelace-style/shoelace/dist/components/alert/alert.js";
 import "@shoelace-style/shoelace/dist/components/button/button.js";
 import "@shoelace-style/shoelace/dist/components/card/card.js";
+import "@shoelace-style/shoelace/dist/components/dialog/dialog.js";
 import "@shoelace-style/shoelace/dist/components/icon/icon.js";
+import "@shoelace-style/shoelace/dist/components/icon-button/icon-button.js";
 
 import "./shoelace.js";
+
+import SlDialog from "@shoelace-style/shoelace/dist/components/dialog/dialog.js";
+
+import { notify, notifyError } from "./alert.js";
+import { getResponseError } from "./ajaxUtil.js";
+
+const dlgDelete = document.getElementById("confirm-delete") as SlDialog;
+
+const confirmDelete = (
+    id: string,
+    amount: string,
+    date: string,
+    vendor: string,
+) => {
+    dlgDelete.querySelector(".amount")!.textContent = amount;
+    dlgDelete.querySelector(".date")!.textContent = date;
+    dlgDelete.querySelector(".receipt-id")!.textContent = id;
+    dlgDelete.querySelector(".vendor")!.textContent = vendor;
+    dlgDelete.show();
+};
+
+const deleteReceipt = async (receiptId: string): Promise<boolean> => {
+    let r: Response;
+    try {
+        r = await fetch(`/receipts/${receiptId}`, { method: "DELETE" });
+    } catch (e) {
+        notifyError(e.toString());
+        return false;
+    }
+    if (r.ok) {
+        notify(`Deleted receipt ${receiptId}`);
+        return true;
+    } else {
+        const err = await getResponseError(r);
+        notifyError(err);
+        return false;
+    }
+};
+
+document.querySelectorAll(".receipt-card").forEach((card) => {
+    const amount = card.querySelector(".amount")!.textContent!;
+    const date = (card.querySelector(".date") as HTMLElement).dataset.date!;
+    const vendor = card.querySelector(".vendor")!.textContent!;
+    const btn = card.querySelector("sl-icon-button[name='trash']");
+    if (btn) {
+        btn.addEventListener("click", (evt) => {
+            evt.preventDefault();
+            confirmDelete(
+                (card as HTMLElement).dataset.receiptId!,
+                amount,
+                date,
+                vendor,
+            );
+        });
+    }
+});
+
+dlgDelete
+    .querySelector("sl-button[aria-label='No']")!
+    .addEventListener("click", () => {
+        dlgDelete.hide();
+    });
+
+dlgDelete
+    .querySelector("sl-button[aria-label='Yes']")!
+    .addEventListener("click", async () => {
+        dlgDelete.hide();
+        const receiptId = dlgDelete.querySelector(".receipt-id")?.textContent;
+        if (receiptId) {
+            const success = await deleteReceipt(receiptId);
+            if (success) {
+                const card = document.querySelector(
+                    `sl-card[data-receipt-id="${receiptId}"]`,
+                ) as HTMLElement;
+                card.style.opacity = "0";
+                setTimeout(() => {
+                    card.remove();
+                }, 1000);
+            }
+        }
+    });

src/receipts.rs

@@ -69,6 +69,13 @@ pub enum AddReceiptResponse {
     Error(String),
 }
 
+#[derive(Serialize)]
+#[serde(rename_all = "lowercase")]
+pub enum DeleteReceiptResponse {
+    Success,
+    Error(String),
+}
+
 impl ReceiptPostData {
     async fn from_form(
         form: &ReceiptPostForm<'_>,
@@ -229,6 +236,7 @@ WHERE
         },
     }
 }
+
 #[rocket::get("/<id>/view/<filename>")]
 pub async fn view_receipt_photo(
     id: i32,
@@ -257,9 +265,34 @@ pub async fn view_receipt_photo(
     }
 }
 
+#[rocket::delete("/<id>")]
+pub async fn delete_receipt(
+    id: i32,
+    mut db: DatabaseConnection<Database>,
+) -> (Status, Json<DeleteReceiptResponse>) {
+    let result = rocket_db_pools::sqlx::query_as!(
+        ReceiptJson,
+        "DELETE FROM receipts WHERE id = $1",
+        id,
+    )
+    .execute(&mut **db)
+    .await;
+    match result {
+        Ok(_) => (Status::Ok, Json(DeleteReceiptResponse::Success)),
+        Err(e) => {
+            error!("Error fetching receipt image: {}", e);
+            (
+                Status::InternalServerError,
+                Json(DeleteReceiptResponse::Error(e.to_string())),
+            )
+        },
+    }
+}
+
 pub fn routes() -> Vec<Route> {
     rocket::routes![
         add_receipt,
+        delete_receipt,
         get_receipt,
         list_receipts,
         receipt_form,

templates/receipt-list.html.tera

@@ -2,12 +2,16 @@
 <title>Receipts</title>
 <style>
   article {
-    text-align: center;
+    display: flex;
+    flex-wrap: wrap;
+    justify-content: center;
+    align-content: stretch;
   }
 
   .receipt-card {
     max-width: 250px;
     margin: 1em;
+    transition: opacity 1s ease;
   }
 
   .receipt-card > a {
@@ -24,6 +28,7 @@
   .receipt-card .date {
     font-size: 75%;
     color: var(--sl-color-neutral-500);
+    vertical-align: bottom;
   }
 
   .receipt-card :link,
@@ -31,6 +36,50 @@
     color: var(--sl-color-neutral-900);
     text-decoration: none;
   }
+
+  sl-card.receipt-card::part(base) {
+    height: 100%;
+  }
+
+  sl-card.receipt-card::part(image) {
+    height: 100%;
+  }
+
+  sl-card.receipt-card [slot="image"] img {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+  }
+
+  sl-card.receipt-card::part(body) {
+    padding-bottom: calc(var(--padding) / 2);
+  }
+
+  sl-card.receipt-card::part(footer) {
+    padding: 0 calc(var(--padding) / 2);
+  }
+
+  sl-card.receipt-card footer {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  #confirm-delete dl {
+    display: grid;
+    grid-template-columns: max-content max-content;
+    gap: var(--sl-spacing-x-small) var(--sl-spacing-medium);
+    padding: 1rem;
+    margin: 0 0 1.5rem 0;
+    width: min-content;
+  }
+  #confirm-delete dl dt {
+    text-align: right;
+    font-weight: bold;
+  }
+  #confirm-delete dl dd {
+    margin-left: 0;
+  }
 </style>
 {% endblock %} {% block main %}
 <h1>Receipts</h1>
@@ -42,33 +91,46 @@
 </p>
 <article>
   {% for receipt in receipts -%}
-  <sl-card class="receipt-card">
+  <sl-card class="receipt-card" data-receipt-id="{{ receipt.id }}">
+    <a slot="image" href="/receipts/{{ receipt.id }}">
       <img
-      slot="image"
         src="/receipts/{{ receipt.id }}/view/{{ receipt.filename }}"
         alt="Receipt {{ receipt.id }}"
       />
+    </a>
     <a href="/receipts/{{ receipt.id }}">
       <div class="vendor">{{ receipt.vendor }}</div>
       <div class="amount">$ {{ receipt.amount }}</div>
     </a>
-    <div class="date">{{ receipt.date | date(format="%A %_d %B %Y") }}</div>
+    <footer slot="footer">
+      <div
+        class="date"
+        data-date="{{ receipt.date | date(format='%A %_d %B %Y') }}"
+      >
+        {{ receipt.date | date(format="%a %_d %b %Y") }}
+      </div>
+      <sl-icon-button name="trash" label="Delete"></sl-icon-button>
+    </footer>
   </sl-card>
   {% endfor %}
 </article>
+<sl-dialog id="confirm-delete" label="Delete Receipt">
+  <p>
+    Are you sure you want to delete receipt <span class="receipt-id"></span>?
+  </p>
+  <dl>
+    <dt>Vendor</dt>
+    <dd class="vendor"></dd>
+    <dt>Amount</dt>
+    <dd class="amount"></dd>
+    <dt>Date</dt>
+    <dd class="date"></dd>
+  </dl>
+  <footer slot="footer" class="table-actions">
+    <sl-button aria-label="No">No</sl-button>
+    <sl-button variant="danger" aria-label="Yes">Yes</sl-button>
+  </footer>
+</sl-dialog>
 {% endblock %} {% block scripts %}
 <script src="/static/receipt-list.js"></script>
-<script>
-  (() => {
-    document.querySelectorAll(".receipt-card").forEach((e) => {
-      const a = e.querySelector("a");
-      if (a && a.href) {
-        e.style.cursor = "pointer";
-        e.addEventListener("click", () => {
-          window.location.href = a.href;
-        });
-      }
-    });
-  })();
-</script>
 {% endblock %}