#!/usr/bin/env node

// Get details for a specific Linear issue
// Usage: linear-issue.js <identifier> [--comments]

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

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

const showComments = args.includes("--comments");
const filtered = args.filter((a) => a !== "--comments");

const identifier = filtered[0];

if (!identifier) {
	console.log("Usage: linear-issue.js <identifier> [--comments]");
	console.log("\nExamples:");
	console.log("  linear-issue.js ATT-1234");
	console.log("  linear-issue.js ATT-1234 --comments");
	process.exit(1);
}

const client = getClient();

// Parse team key and issue number from identifier (e.g. "SIP-1205")
const parts = identifier.match(/^([A-Za-z]+)-(\d+)$/);
if (!parts) {
	console.error(`Invalid identifier format: ${identifier}. Expected format: TEAM-123`);
	process.exit(1);
}

const teamKey = parts[1].toUpperCase();
const issueNumber = parseInt(parts[2], 10);

// Find the issue by team key + number
const issues = await client.issues({
	filter: {
		team: { key: { eq: teamKey } },
		number: { eq: issueNumber },
	},
	first: 1,
});

const issue = issues.nodes[0];
if (!issue) {
	console.error(`Issue ${identifier} not found.`);
	process.exit(1);
}

const state = await issue.state;
const team = await issue.team;
const assignee = await issue.assignee;
const labels = await issue.labels();
const parent = await issue.parent;
const project = await issue.project;
const cycle = await issue.cycle;

console.log(`=== ${issue.identifier}: ${issue.title} ===`);
console.log(`URL: ${issue.url}`);
console.log(`State: ${state?.name || "Unknown"}`);
console.log(`Priority: ${issue.priorityLabel}`);
console.log(`Team: ${team?.key || "?"}`);
console.log(`Assignee: ${assignee?.name || "Unassigned"}`);
if (project) console.log(`Project: ${project.name}`);
if (cycle) console.log(`Cycle: ${cycle.name || cycle.number}`);
if (parent) console.log(`Parent: ${parent.identifier} - ${parent.title}`);
if (labels.nodes.length > 0) {
	console.log(`Labels: ${labels.nodes.map((l) => l.name).join(", ")}`);
}
console.log(`Created: ${formatDate(issue.createdAt)}`);
console.log(`Updated: ${formatDate(issue.updatedAt)}`);
if (issue.dueDate) console.log(`Due: ${issue.dueDate}`);
console.log(`\nDescription:\n${issue.description || "(empty)"}`);

if (showComments) {
	const comments = await issue.comments();
	if (comments.nodes.length > 0) {
		console.log(`\n--- Comments (${comments.nodes.length}) ---`);
		for (const comment of comments.nodes) {
			const author = await comment.user;
			console.log(`\n[${formatDate(comment.createdAt)}] ${author?.name || "Unknown"}:`);
			console.log(comment.body);
		}
	} else {
		console.log("\nNo comments.");
	}
}