import { get } from 'svelte/store';
import { activeHost } from '$lib/stores/hosts';
import type { ProcessDetail } from '$lib/types/metrics';

function getApiBase(): string {
	const host = get(activeHost);
	const baseUrl = host.isLocal ? '' : host.url;
	return `${baseUrl}/api/v1`;
}

export async function getProcessDetail(pid: number): Promise<ProcessDetail> {
	const response = await fetch(`${getApiBase()}/processes/${pid}`);
	if (!response.ok) {
		throw new Error(`Failed to fetch process ${pid}: ${response.statusText}`);
	}
	return response.json();
}

export interface SignalResult {
	success: boolean;
	message: string;
}

export async function sendSignal(pid: number, signal: number): Promise<SignalResult> {
	const response = await fetch(`${getApiBase()}/processes/${pid}/signal`, {
		method: 'POST',
		headers: { 'Content-Type': 'application/json' },
		body: JSON.stringify({ signal })
	});
	return response.json();
}

// Common signal constants
export const SIGNALS = {
	SIGTERM: 15, // Graceful termination
	SIGKILL: 9,  // Force kill
	SIGSTOP: 19, // Pause process
	SIGCONT: 18  // Resume process
} as const;