Add separate --stats option

package.json

@@ -6,6 +6,8 @@
     "lint:ts": "tsc --noEmit",
     "test": "ts-node src/index.ts examples/threshold-pushing.txt",
     "test:2": "ts-node src/index.ts examples/darth-vader.txt",
+    "test:stats": "ts-node src/index.ts --stats examples/threshold-pushing.txt",
+    "test:stats:2": "ts-node src/index.ts --stats examples/darth-vader.txt",
     "format:js": "prettier --write src/"
   },
   "dependencies": {

src/index.ts

@@ -1,36 +1,21 @@
 import * as fs from "fs";
-import { averageIntensity } from "./averageIntensity";
 import { generateZwo } from "./generateZwo";
-import { normalizedIntensity } from "./normalizedIntensity";
 import { parse } from "./parser";
+import { stats } from "./stats";
 import { tokenize } from "./tokenizer";
-import { totalDuration } from "./totalDuration";
-import { tss } from "./tss";
-import { tss2 } from "./tss2";
 
-const filename = process.argv[2];
+const opts = { stats: false, filename: "" };
+if (process.argv[2] === "--stats") {
+  opts.stats = true;
+  opts.filename = process.argv[3];
+} else {
+  opts.filename = process.argv[2];
+}
 
-console.log(`Parsing: ${filename}`);
-
-const file = fs.readFileSync(filename, "utf8");
-
-const workout = parse(tokenize(file));
-const { intervals } = workout;
-
-const duration = totalDuration(intervals);
-const avgIntensity = averageIntensity(intervals);
-const normIntensity = normalizedIntensity(intervals);
-
-console.log(intervals);
-
-console.log(`
-Total duration: ${(duration / 60).toFixed()} minutes
-
-Average intensity: ${(avgIntensity * 100).toFixed()}%
-Normalized intensity: ${(normIntensity * 100).toFixed()}%
-
-TSS #1: ${tss(intervals).toFixed()}
-TSS #2: ${tss2(duration, normIntensity).toFixed()}
-`);
+const workout = parse(tokenize(fs.readFileSync(opts.filename, "utf8")));
 
+if (opts.stats) {
+  console.log(stats(workout));
+} else {
   console.log(generateZwo(workout));
+}

src/stats/averageIntensity.ts

@@ -1,5 +1,5 @@
 import { pipe } from "ramda";
-import { Interval } from "./ast";
+import { Interval } from "../ast";
 import { average } from "./average";
 import { intervalsToIntensities } from "./intervalsToIntensities";
 

src/stats/index.ts

@@ -0,0 +1,23 @@
+import { Workout } from "../ast";
+import { averageIntensity } from "./averageIntensity";
+import { normalizedIntensity } from "./normalizedIntensity";
+import { totalDuration } from "./totalDuration";
+import { tss } from "./tss";
+import { tss2 } from "./tss2";
+
+// Generates statistics
+export const stats = ({ intervals }: Workout): string => {
+  const duration = totalDuration(intervals);
+  const avgIntensity = averageIntensity(intervals);
+  const normIntensity = normalizedIntensity(intervals);
+
+  return `
+Total duration: ${(duration / 60).toFixed()} minutes
+
+Average intensity: ${(avgIntensity * 100).toFixed()}%
+Normalized intensity: ${(normIntensity * 100).toFixed()}%
+
+TSS #1: ${tss(intervals).toFixed()}
+TSS #2: ${tss2(duration, normIntensity).toFixed()}
+`;
+};

src/stats/intervalsToIntensities.ts

@@ -1,5 +1,5 @@
 import { chain } from "ramda";
-import { Interval } from "./ast";
+import { Interval } from "../ast";
 
 // Converts interval to array of intensity values for each second
 const intervalToIntensities = ({ duration, intensity }: Interval): number[] => {

src/stats/normalizedIntensity.ts

@@ -1,5 +1,5 @@
 import { pipe, sum } from "ramda";
-import { Interval } from "./ast";
+import { Interval } from "../ast";
 import { average } from "./average";
 import { intervalsToIntensities } from "./intervalsToIntensities";
 

src/stats/totalDuration.ts

@@ -1,5 +1,5 @@
 import { pluck, sum } from "ramda";
-import { Interval } from "./ast";
+import { Interval } from "../ast";
 
 export const totalDuration = (intervals: Interval[]) =>
   sum(pluck("duration", intervals));

src/stats/tss.ts

@@ -1,4 +1,4 @@
-import { Interval } from "./ast";
+import { Interval } from "../ast";
 
 // Training Stress Score formula from Training and Racing with a Power Meter:
 //