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index.js
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index.js
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require("dotenv").config();
const Octokit = require("@octokit/rest");
const fetch = require("node-fetch");
const fs = require("fs");
const {
GIST_ID: gistId,
GITHUB_TOKEN: githubToken,
STRAVA_ATHLETE_ID: stravaAtheleteId,
STRAVA_ACCESS_TOKEN: stravaAccessToken,
STRAVA_REFRESH_TOKEN: stravaRefreshToken,
STRAVA_CLIENT_ID: stravaClientId,
STRAVA_CLIENT_SECRET: stravaClientSecret,
UNITS: units
} = process.env;
const API_BASE = "https://www.strava.com/api/v3/athletes/";
const AUTH_CACHE_FILE = "strava-auth.json";
const octokit = new Octokit({
auth: `token ${githubToken}`
});
async function main() {
const stats = await getStravaStats();
await updateGist(stats);
}
/**
* Updates cached strava authentication tokens if necessary
*/
async function getStravaToken(){
// default env vars
let cache = {
// stravaAccessToken: stravaAccessToken,
stravaRefreshToken: stravaRefreshToken
};
// read cache from disk
try {
const jsonStr = fs.readFileSync(AUTH_CACHE_FILE);
const c = JSON.parse(jsonStr);
Object.keys(c).forEach(key => {
cache[key] = c[key];
});
} catch (error) {
console.log(error);
}
console.debug(`ref: ${cache.stravaRefreshToken.substring(0,6)}`);
// get new tokens
const data = await fetch("https://www.strava.com/oauth/token", {
method: 'post',
body: JSON.stringify({
grant_type: 'refresh_token',
client_id: stravaClientId,
client_secret: stravaClientSecret,
refresh_token: cache.stravaRefreshToken
}),
headers: {'Content-Type': 'application/json'},
}).then(
data => data.json()
);
cache.stravaAccessToken = data.access_token;
cache.stravaRefreshToken = data.refresh_token;
console.debug(`acc: ${cache.stravaAccessToken.substring(0,6)}`);
console.debug(`ref: ${cache.stravaRefreshToken.substring(0,6)}`);
// save to disk
fs.writeFileSync(AUTH_CACHE_FILE, JSON.stringify(cache));
return cache.stravaAccessToken;
}
/**
* Fetches your data from the Strava API
* The distance returned by the API is in meters
*/
async function getStravaStats() {
const API = `${API_BASE}${stravaAtheleteId}/stats?access_token=${await getStravaToken()}`;
const json = await fetch(API).then(data => data.json());
return json;
}
async function updateGist(data) {
let gist;
try {
gist = await octokit.gists.get({ gist_id: gistId });
} catch (error) {
console.error(`Unable to get gist\n${error}`);
throw error;
}
// Used to index the API response
const keyMappings = {
Running: {
key: "ytd_run_totals"
},
Swimming: {
key: "ytd_swim_totals"
},
Cycling: {
key: "ytd_ride_totals"
}
};
let totalDistance = 0;
let lines = Object.keys(keyMappings).map(activityType => {
// Store the activity name and distance
const { key } = keyMappings[activityType];
try {
const { distance, moving_time } = data[key];
totalDistance += distance;
return {
name: activityType,
pace: distance * 3600 / (moving_time ? moving_time : 1),
distance
};
} catch (error) {
console.error(`Unable to get distance\n${error}`);
return {
name: activityType,
pace: 0,
distance: 0
};
}
}).map(activity => {
// Calculate the percentages and bar charts for the 3 activities
const percent = (activity["distance"] / totalDistance) * 100;
const pacePH = formatDistance(activity["pace"]);
const pace = pacePH.substring(0, pacePH.length - 3); // strip unit
return {
...activity,
distance: formatDistance(activity["distance"]),
pace: `${pace}/h`,
barChart: generateBarChart(percent, 19)
};
}).map(activity => {
// Format the data to be displayed in the Gist
const { name, distance, pace, barChart } = activity;
return `${name.padEnd(10)} ${distance.padStart(
13
)} ${barChart} ${pace.padStart(7)}`;
});
// Last 4 weeks
let monthDistance = 0;
let monthTime = 0;
let monthAchievements = 0;
for (let [key, value] of Object.entries(data)){
if (key.startsWith("recent_") && key.endsWith("_totals")){
monthDistance += value["distance"];
monthTime += value["moving_time"];
monthAchievements += value["achievement_count"];
}
}
lines.push(
`Last month ${
formatDistance(monthDistance).padStart(13)
} ${
(
monthAchievements
? `${monthAchievements} achievement${monthAchievements > 1 ? "s" : ""}`
: ""
).padStart(19)
} ${
`${(monthTime / 3600).toFixed(0)}`.padStart(3)
}:${
(monthTime / 60).toFixed(0) % 60
}h`
);
try {
// Get original filename to update that same file
const filename = Object.keys(gist.data.files)[0];
await octokit.gists.update({
gist_id: gistId,
files: {
[filename]: {
filename: `YTD Strava Metrics`,
content: lines.join("\n")
}
}
});
} catch (error) {
console.error(`Unable to update gist\n${error}`);
throw error;
}
}
function generateBarChart(percent, size) {
const syms = "βββββββββ";
const frac = Math.floor((size * 8 * percent) / 100);
const barsFull = Math.floor(frac / 8);
if (barsFull >= size) {
return syms.substring(8, 9).repeat(size);
}
const semi = frac % 8;
return [
syms.substring(8, 9).repeat(barsFull),
syms.substring(semi, semi + 1),
].join("").padEnd(size, syms.substring(0, 1));
}
function formatDistance(distance) {
switch (units) {
case "meters":
return `${metersToKm(distance)} km`;
case "miles":
return `${metersToMiles(distance)} mi`;
default:
return `${metersToKm(distance)} km`;
}
}
function metersToMiles(meters) {
const CONVERSION_CONSTANT = 0.000621371192;
return (meters * CONVERSION_CONSTANT).toFixed(2);
}
function metersToKm(meters) {
const CONVERSION_CONSTANT = 0.001;
return (meters * CONVERSION_CONSTANT).toFixed(2);
}
(async () => {
await main();
})();