From 58e0bf3e5b16c062904d4b5905c89630cf57ef5d Mon Sep 17 00:00:00 2001
From: Yingchi Long <i@lyc.dev>
Date: Fri, 26 Jul 2024 07:52:53 +0800
Subject: [PATCH] spec: add `extract` utility functions for data analyzing
 results

---
 src/spec/index.ts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/spec/index.ts b/src/spec/index.ts
index 4b442ee..7328690 100644
--- a/src/spec/index.ts
+++ b/src/spec/index.ts
@@ -125,7 +125,25 @@ export interface SPECResultsTable {
     description?: string,
 }
 
-export function parseSPECCSVResultsTable(data: string) {
+export const extract = (field: keyof SPECResultsTable) => (o: ParsedResult) => {
+    return Object.fromEntries(Object
+        .entries(o)
+        .filter(([_, b]) => b[field] !== '' && b[field] !== undefined && b.baseStatus === 'S')
+        .map(([a, b]) => [a, parseFloat(b[field]!)]));
+};
+
+export const extractBaseRatio = extract('baseRatio');
+
+export const baseRatioFromPath = async (path: string) => {
+    const result = parseSPECCSVResultsTable((await fs.promises.readFile(path)).toString());
+    return extractBaseRatio(result);
+};
+
+export interface ParsedResult {
+    [key: string]: SPECResultsTable
+}
+
+export function parseSPECCSVResultsTable(data: string): ParsedResult {
     const lines = data.split("\n");
     let index = 0;
     const eof = () => index >= lines.length;