export type CreateApiMcpArgs = {'mcp-session-id'?: string | undefined, accept: string, body: {[key: string]: unknown}};

export type CreateApiMcpOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

/**
 * Handle MCP client request
 * 
 * POST /mcp
 */
export const createApiMcp = async (args: CreateApiMcpArgs, options?: CreateApiMcpOptions) => {
const {baseUrl = "http://localhost:3001", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")

if (args['mcp-session-id'] != null) headers.set("mcp-session-id", String(args['mcp-session-id']))
if (args.accept != null) headers.set("accept", String(args.accept))

const url = `${baseUrl.replace(/\/+$/, '')}/mcp${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return undefined
};