Improve EMS interfaces and add LIN decoding.

src/main/decoder/decode-ad1.ts

@@ -2,21 +2,24 @@ import { DBFFile } from "dbffile";
 import log from "electron-log/main";
 import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
-import { OwnerRecordInterface, ParsedAD1 } from "./decode-ad1.interface";
+import { OwnerRecordInterface, DecodedAd1 } from "./decode-ad1.interface";
+import errorTypeCheck from "../../util/errorTypeCheck";
 
-const DecodeAD1 = async (extensionlessFilePath: string): Promise<ParsedAD1> => {
-  let dbf;
+const DecodeAD1 = async (
+  extensionlessFilePath: string
+): Promise<DecodedAd1> => {
+  let dbf: DBFFile;
   try {
     dbf = await DBFFile.open(`${extensionlessFilePath}A.AD1`);
   } catch (error) {
-    log.error("Error opening AD1 File.", error);
+    log.error("Error opening AD1 File.", errorTypeCheck(error));
     dbf = await DBFFile.open(`${extensionlessFilePath}.AD1`);
     log.log("Found AD1 file using regular CIECA Id.");
   }
 
   if (!dbf) {
     log.error(`Could not find any AD1 files at ${extensionlessFilePath}`);
-    return null;
+    throw new Error(`Could not find any AD1 files at ${extensionlessFilePath}`);
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
@@ -24,7 +27,7 @@ const DecodeAD1 = async (extensionlessFilePath: string): Promise<ParsedAD1> => {
   //AD1 will always have only 1 row.
   //Commented lines have been cross referenced with existing partner fields.
 
-  const rawAd1Data = deepLowerCaseKeys(
+  const rawAd1Data: DecodedAd1 = deepLowerCaseKeys(
     _.pick(rawDBFRecord[0], [
       //TODO: Add typings for EMS File Formats.
       "INS_CO_ID",
@@ -192,7 +195,7 @@ const DecodeAD1 = async (extensionlessFilePath: string): Promise<ParsedAD1> => {
       ownr_ph1: rawAd1Data.ownr_ph1,
       ownr_ph2: rawAd1Data.ownr_ph2,
       ownr_ea: rawAd1Data.ownr_ea,
-      shopid: "UUID",
+      shopid: "UUID", //TODO: Need to add the shop uuid to this set of functions.
     };
   }