import { afterEach, expect, it, vi } from 'vitest';
import http from 'http';
import type { AddressInfo } from 'net';
import { HttpServerAdapter } from '../src/network/http-server-adapter';
import type { JsonObject } from '../src/types';

let adapter: HttpServerAdapter | undefined;

afterEach(async () => {
    await adapter?.close();
    adapter = undefined;
});

it('accepts base64 images above 2 MiB, returns 413 for oversize and stays usable', async () => {
    const handle = vi.fn(async () => ({ status: 'ok', retcode: 0, data: {} }));
    adapter = new HttpServerAdapter(
        'image-body',
        {
            name: 'image-body',
            host: '127.0.0.1',
            port: 0,
            path: '/',
            messageFormat: 'array',
            reportSelfMessage: false,
        },
        {
            uin: '10001',
            api: { isStreamAction: () => false, handle } as never,
            buildLifecycleEvent: () => ({}),
            buildHeartbeatEvent: () => ({}),
        },
    );
    await adapter.open();
    const port = ((adapter as unknown as { server: http.Server }).server.address() as AddressInfo)
        .port;

    async function post(body: string): Promise<{ status: number; body: JsonObject }> {
        return new Promise((resolve, reject) => {
            const req = http.request(
                {
                    hostname: '127.0.0.1',
                    port,
                    path: '/send_group_msg',
                    method: 'POST',
                    headers: { 'content-type': 'application/json' },
                },
                (res) => {
                    const chunks: Buffer[] = [];
                    res.on('data', (chunk: Buffer) => chunks.push(chunk));
                    res.on('end', () => {
                        resolve({
                            status: res.statusCode ?? 0,
                            body: JSON.parse(Buffer.concat(chunks).toString()) as JsonObject,
                        });
                    });
                },
            );
            req.on('error', reject);
            req.end(body);
        });
    }

    const image = JSON.stringify({
        group_id: 1,
        message: [
            {
                type: 'image',
                data: { file: 'base64://' + Buffer.alloc(1_644_101).toString('base64') },
            },
        ],
    });
    expect((await post(image)).status).toBe(200);
    expect(handle).toHaveBeenCalledTimes(1);
    expect(await post(JSON.stringify({ padding: 'x'.repeat(64 * 1024 * 1024) }))).toMatchObject({
        status: 413,
        body: { status: 'failed', retcode: 1413 },
    });
    expect(handle).toHaveBeenCalledTimes(1);
    expect((await post('{}')).status).toBe(200);
    expect(handle).toHaveBeenCalledTimes(2);
}, 20_000);