#!/usr/bin/env node

// List Linear issues with filters
// Usage: linear-issues.js [--team <key>] [--state <name>] [--assignee <name|me>] [--label <name>] [--project <name>] [-n <num>]

import { getClient, formatDate, truncate } from "./lib.js";

const args = process.argv.slice(2);

function extractArg(flag) {
	const idx = args.indexOf(flag);
	if (idx !== -1 && args[idx + 1]) {
		const val = args[idx + 1];
		args.splice(idx, 2);
		return val;
	}
	return null;
}

const numResults = parseInt(extractArg("-n") || "25", 10);
const teamKey = extractArg("--team");
const stateName = extractArg("--state");
const assigneeName = extractArg("--assignee");
const labelName = extractArg("--label");
const projectName = extractArg("--project");

if (args.includes("--help") || args.includes("-h")) {
	console.log("Usage: linear-issues.js [options]");
	console.log("\nOptions:");
	console.log("  --team <key>       Filter by team key (e.g. ENG)");
	console.log("  --state <name>     Filter by state (e.g. 'In Progress', 'Todo')");
	console.log("  --assignee <name>  Filter by assignee name or 'me'");
	console.log("  --label <name>     Filter by label name");
	console.log("  --project <name>   Filter by project name");
	console.log("  -n <num>           Number of results (default: 25)");
	process.exit(0);
}

const client = getClient();

// Build filter
const filter = {};

if (teamKey) {
	filter.team = { key: { eq: teamKey.toUpperCase() } };
}

if (stateName) {
	filter.state = { name: { eqIgnoreCase: stateName } };
}

if (assigneeName) {
	if (assigneeName.toLowerCase() === "me") {
		const me = await client.viewer;
		filter.assignee = { id: { eq: me.id } };
	} else {
		filter.assignee = { name: { containsIgnoreCase: assigneeName } };
	}
}

if (labelName) {
	filter.labels = { name: { eqIgnoreCase: labelName } };
}

if (projectName) {
	filter.project = { name: { containsIgnoreCase: projectName } };
}

const issues = await client.issues({
	filter,
	first: numResults,
	orderBy: "updatedAt",
});

if (issues.nodes.length === 0) {
	console.log("No issues found matching filters.");
	process.exit(0);
}

for (const issue of issues.nodes) {
	const state = await issue.state;
	const team = await issue.team;
	const assignee = await issue.assignee;

	console.log(
		`${issue.identifier.padEnd(12)} ${(state?.name || "?").padEnd(14)} ${(issue.priorityLabel || "").padEnd(8)} ${(assignee?.name || "Unassigned").padEnd(20)} ${truncate(issue.title, 80)}`
	);
}

console.log(`\n${issues.nodes.length} issue(s) shown.`);