Image Upload Backend Endpoint (#132)

* Added image upload component and backend call

* Clean and combine code

---------

Co-authored-by: Parker Abramson <parkerrabramson@gmail.com>

web/db/actions/caregiver/Photo.ts

@@ -0,0 +1,64 @@
+import React from "react";
+import { db, storage } from "../../firebase"; // import firebase storage
+import { ref, uploadBytesResumable, getDownloadURL } from "firebase/storage";
+import { doc, setDoc, Timestamp } from "firebase/firestore";
+
+export async function uploadPhoto(e: React.ChangeEvent<HTMLInputElement>) {
+  const files = e.target.files;
+  if (!files || files.length === 0) {
+    return { success: false, error: "File attempted to be uploaded was empty" };
+  }
+
+  try {
+    const file = files[0];
+
+    const extension = file.name.split(".").pop();
+    const storageRef = ref(storage, `images/${Date.now()}.${extension}`);
+
+    const uploadTask = uploadBytesResumable(storageRef, file);
+
+    uploadTask.on(
+      "state_changed",
+      (snapshot) => {
+        const progress =
+          (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
+      },
+      (error) => {
+        return { success: false, error: `Upload failed: ${error}` };
+      },
+      async () => {
+        const downloadURL = await getDownloadURL(uploadTask.snapshot.ref);
+        // TODO: Incorporate baby and caregiver context
+        // https://github.com/GTBitsOfGood/motherhood-beyond-bars/blob/_original/mobile/screens/babybook/SelectPicture.tsx#L28
+        // TODO: Incorporate caption
+        const metadata = {
+          imageURL: downloadURL,
+          caregiverID: "test-caregiverId",
+          caption: "test-caption",
+          babyID: "test-babyId",
+        };
+
+        const { imageURL, caregiverID, caption, babyID } = metadata;
+
+        const docRef = doc(
+          db,
+          "babies",
+          babyID,
+          "book",
+          `${caregiverID}_${Date.now()}`
+        );
+
+        await setDoc(docRef, {
+          imageUrl: imageURL,
+          caption: caption,
+          date: Timestamp.now(),
+          caregiverId: caregiverID,
+        });
+
+        return { success: true, data: { downloadURL: downloadURL } };
+      }
+    );
+  } catch (error) {
+    return { success: false, error: `Upload failed: ${error}` };
+  }
+}