From 6bf4b90c90f15f4ab60833bddf5b5756d1a6b1f6 Mon Sep 17 00:00:00 2001
From: Elizabeth Alexander Hunt <me@liz.coffee>
Date: Thu, 2 Jul 2026 11:55:17 -0700
Subject: Init

---
 .../consumer/dao/keys/S3WidgetKeyGenerator.ts      | 43 ++++++++++++++++++++++
 Homework/cs5260/consumer/dao/keys/index.ts         |  1 +
 2 files changed, 44 insertions(+)
 create mode 100644 Homework/cs5260/consumer/dao/keys/S3WidgetKeyGenerator.ts
 create mode 100644 Homework/cs5260/consumer/dao/keys/index.ts

(limited to 'Homework/cs5260/consumer/dao/keys')

diff --git a/Homework/cs5260/consumer/dao/keys/S3WidgetKeyGenerator.ts b/Homework/cs5260/consumer/dao/keys/S3WidgetKeyGenerator.ts
new file mode 100644
index 0000000..2e4c254
--- /dev/null
+++ b/Homework/cs5260/consumer/dao/keys/S3WidgetKeyGenerator.ts
@@ -0,0 +1,43 @@
+import { WidgetT } from "@/shared/schema";
+
+export class S3WidgetKeyGenerator {
+  private prefix: string = "";
+  private owner: string = "";
+  private widgetId: string = "";
+
+  public withPrefix(prefix: string): S3WidgetKeyGenerator {
+    this.prefix = prefix;
+    return this;
+  }
+
+  public withOwner(owner: string): S3WidgetKeyGenerator {
+    this.owner = owner;
+    return this;
+  }
+
+  public withWidgetId(widgetId: string): S3WidgetKeyGenerator {
+    this.widgetId = widgetId;
+    return this;
+  }
+
+  public build(): string {
+    const parts = [
+      this.prefix,
+      this.owner.replaceAll(" ", "-").toLowerCase(),
+      this.widgetId,
+    ];
+    if (parts.some((part) => !part || !part.match(/^[a-zA-Z0-9!\-_.*'()]+$/))) {
+      throw new Error("Invalid Key Specification");
+    }
+    return parts.join("/");
+  }
+
+  public fromWidget(widget: WidgetT) {
+    const keyBuilder = new S3WidgetKeyGenerator();
+    return keyBuilder
+      .withPrefix(this.prefix)
+      .withOwner(widget.owner)
+      .withWidgetId(widget.id)
+      .build();
+  }
+}
diff --git a/Homework/cs5260/consumer/dao/keys/index.ts b/Homework/cs5260/consumer/dao/keys/index.ts
new file mode 100644
index 0000000..c7c8467
--- /dev/null
+++ b/Homework/cs5260/consumer/dao/keys/index.ts
@@ -0,0 +1 @@
+export * from "./S3WidgetKeyGenerator";
-- 
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