#!/usr/bin/env node

// Create a new Linear issue
// Usage: linear-create.js --team <key> --title <title> [--description <desc>] [--state <name>] [--priority <0-4>] [--assignee <name|me>] [--label <name>] [--parent <identifier>]

import { getClient } 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 teamKey = extractArg("--team");
const title = extractArg("--title");
const description = extractArg("--description");
const stateName = extractArg("--state");
const priority = extractArg("--priority");
const assigneeName = extractArg("--assignee");
const labelName = extractArg("--label");
const parentId = extractArg("--parent");

if (!teamKey || !title) {
	console.log("Usage: linear-create.js --team <key> --title <title> [options]");
	console.log("\nRequired:");
	console.log("  --team <key>          Team key (e.g. ENG)");
	console.log('  --title <title>       Issue title');
	console.log("\nOptional:");
	console.log("  --description <text>  Issue description (markdown)");
	console.log("  --state <name>        Initial state (e.g. 'Todo')");
	console.log("  --priority <0-4>      Priority: 0=None, 1=Urgent, 2=High, 3=Medium, 4=Low");
	console.log("  --assignee <name|me>  Assignee name or 'me'");
	console.log("  --label <name>        Label name");
	console.log("  --parent <id>         Parent issue identifier (e.g. ATT-100)");
	process.exit(1);
}

const client = getClient();

// Resolve team
const teams = await client.teams({ filter: { key: { eq: teamKey.toUpperCase() } } });
const team = teams.nodes[0];
if (!team) {
	console.error(`Team '${teamKey}' not found.`);
	process.exit(1);
}

const input = {
	teamId: team.id,
	title,
};

if (description) input.description = description;
if (priority) input.priority = parseInt(priority, 10);

// Resolve state
if (stateName) {
	const states = await team.states();
	const state = states.nodes.find(
		(s) => s.name.toLowerCase() === stateName.toLowerCase()
	);
	if (state) input.stateId = state.id;
	else console.warn(`Warning: State '${stateName}' not found, using default.`);
}

// Resolve assignee
if (assigneeName) {
	if (assigneeName.toLowerCase() === "me") {
		const me = await client.viewer;
		input.assigneeId = me.id;
	} else {
		const users = await client.users({ filter: { name: { containsIgnoreCase: assigneeName } } });
		if (users.nodes[0]) input.assigneeId = users.nodes[0].id;
		else console.warn(`Warning: User '${assigneeName}' not found.`);
	}
}

// Resolve label
if (labelName) {
	const labels = await client.issueLabels({ filter: { name: { eqIgnoreCase: labelName } } });
	if (labels.nodes[0]) input.labelIds = [labels.nodes[0].id];
	else console.warn(`Warning: Label '${labelName}' not found.`);
}

// Resolve parent
if (parentId) {
	const parentSearch = await client.searchIssues(parentId, { first: 1 });
	if (parentSearch.nodes[0]) input.parentId = parentSearch.nodes[0].id;
	else console.warn(`Warning: Parent '${parentId}' not found.`);
}

const result = await client.createIssue(input);
const issue = await result.issue;

console.log(`Created: ${issue.identifier} - ${issue.title}`);
console.log(`URL: ${issue.url}`);