OBPIH-6969 Add util for reading csv files

Author: alannadolny

src/utils/FileIOUtils.ts

@@ -15,6 +15,36 @@ const readFile = (path: string) => {
   }
 };
 
+export const readCsvFile = (path: string): Record<string, string>[] => {
+  try {
+    const rawdata = fs.readFileSync(path, 'utf8');
+    const lines = rawdata.trim().split('\n');
+
+    if (!lines.length) {
+      return [];
+    }
+
+    const headers = lines[0].split(',');
+    return lines.slice(1).map(line => {
+      const values = line.split(',');
+      const obj: Record<string, string> = {};
+      headers.forEach((header, i) => {
+        obj[header.trim()] = values[i]?.trim() ?? '';
+      });
+
+      return obj;
+    });
+  } catch (error) {
+    if (
+      error instanceof Error &&
+      (error as NodeJS.ErrnoException).code === 'ENOENT'
+    ) {
+      return [];
+    }
+    throw error;
+  }
+};
+
 const writeToFile = (path: string, data: unknown) => {
   const parsedData = JSON.stringify(data, null, 2);
   fs.writeFileSync(path, parsedData, 'utf8');