// @ts-check
import { Octokit } from '@octokit/action';
import { execSync } from 'child_process';
import { readFileSync, writeFileSync } from 'fs';

const octokit = new Octokit();
const owner = 'snowpackjs';
const repo = 'astro';

// Relevant IDs captured via: https://docs.github.com/en/graphql/overview/explorer
// query {
//   repository(name:"astro", owner:"snowpackjs") {
//     project(number: 3) {
//       columns(first: 100) {
//         nodes {
//           id
//           databaseId
//           name
//         }
//       }
//     }
//   }
// }

const COLUMN_ID_BUGS_NEEDS_TRIAGE = 14724521;
const COLUMN_ID_BUGS_ACCEPTED = 14724515;
const COLUMN_ID_BUGS_PRIORITIZED = 14946516;
// const COLUMN_ID_RFCS_IN_PROGRESS = 14946333;
// const COLUMN_ID_RFCS_ACCEPTED = 14946335;
// const COLUMN_ID_RFCS_PRIORITIZED = 14946454;

// CREATE LOCAL COPIES OF DATA (Useful for debugging locally)
// Command:
//   GITHUB_ACTION=test GITHUB_TOKEN=XXXXXXXXX node scripts/stats/index.js
// Code:
//   writeFileSync('pulls.json', JSON.stringify(await octokit.paginate("GET /repos/{owner}/{repo}/pulls", {
//     owner,
//     repo,
//   })));
//   writeFileSync('issues.json', JSON.stringify(await octokit.paginate("GET /repos/{owner}/{repo}/issues", {
//     owner,
//     repo,
//   })));
//   const issues = JSON.parse(readFileSync('issues.json').toString());
//   const pulls = JSON.parse(readFileSync('pulls.json').toString());

async function countCards(column_id) {
	return octokit.paginate('GET /projects/columns/{column_id}/cards', {
		column_id,
		mediaType: {
			previews: ['inertia'],
		},
	});
}
async function countCommits(since) {
	return octokit.paginate('GET /repos/{owner}/{repo}/commits', {
		owner,
		repo,
		since: since.toISOString(),
	});
}

export async function run() {
	const twentyFourHoursAgo = new Date();
	twentyFourHoursAgo.setDate(twentyFourHoursAgo.getDate() - 1);

	const allOpenIssues = await octokit.paginate('GET /repos/{owner}/{repo}/issues', {
		owner,
		repo,
	});
	const openIssues = allOpenIssues.filter((iss) => !iss.pull_request);
	const openPulls = allOpenIssues.filter((iss) => iss.pull_request);

	const allIssuesLastTwentyFourHours = await octokit.paginate('GET /repos/{owner}/{repo}/issues', {
		owner,
		repo,
		state: 'all',
		per_page: 100,
		since: twentyFourHoursAgo.toISOString(),
	});
	const issuesLastTwentyFourHours = allIssuesLastTwentyFourHours.filter((iss) => new Date(iss.created_at) > twentyFourHoursAgo && !iss.pull_request);
	const pullsLastTwentyFourHours = allIssuesLastTwentyFourHours.filter((iss) => new Date(iss.created_at) > twentyFourHoursAgo && iss.pull_request);

	const entry = [
		// Date (Human Readable)
		`"${new Date().toLocaleDateString('en-US', { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' })}"`,
		// Commits in last 24 hours
		(await countCommits(twentyFourHoursAgo)).length,
		// New Issues(All) in last 24 hours
		issuesLastTwentyFourHours.length,
		// New Issues(Bugs) in last 24 hours
		issuesLastTwentyFourHours.filter((iss) => iss.title.startsWith('🐛 BUG:')).length,
		// New Issues(RFC) in last 24 hours
		issuesLastTwentyFourHours.filter((iss) => iss.title.startsWith('💡 RFC:')).length,
		// New Issues(Docs) in last 24 hours
		issuesLastTwentyFourHours.filter((iss) => iss.title.startsWith('📘 DOC:')).length,
		// New Pull Requests in last 24 hours
		pullsLastTwentyFourHours.length,
		// Pull requests
		openPulls.length,
		// Open Issues
		openIssues.length,
		// Bugs: Needs Triage
		(await countCards(COLUMN_ID_BUGS_NEEDS_TRIAGE)).length,
		// Bugs: Accepted
		(await countCards(COLUMN_ID_BUGS_ACCEPTED)).length + (await countCards(COLUMN_ID_BUGS_PRIORITIZED)).length,
		// RFC: In Progress
		0, // (await countCards(COLUMN_ID_RFCS_IN_PROGRESS)).length,
		// RFC: Accepted
		0, // (await countCards(COLUMN_ID_RFCS_ACCEPTED)).length + (await countCards(COLUMN_ID_RFCS_PRIORITIZED)).length,
		// Date (ISO)
		`"${new Date().toISOString()}"`,
	].join(',');

	const statCsv = readFileSync('scripts/stats/stats.csv', { encoding: 'utf-8' });
	const [statHeader, ...statItems] = statCsv.split('\n');
	const updatedStatCsv = [statHeader, entry, ...statItems].join('\n');
	writeFileSync('scripts/stats/stats.csv', updatedStatCsv);
}

run();