import { describe, expect, it, vi } from 'vitest';
import { protobuf_decode, protobuf_encode } from '@snowluma/proton';
import type { Elem } from '@snowluma/proto-defs/element';
import { buildSendElems } from '@snowluma/protocol/element-builder';
import type { MessageElement } from '@snowluma/protocol/events';
import type { OneBotInstanceContext } from '../src/instance-context';
import type { JsonValue } from '../src/types';
import { sendGroupMessage, sendPrivateMessage } from '../src/modules/message-actions';

const sender = 20002;
const target = 30003;
const time = 1700000000;
const sequence = 42;

async function sendQuote(isGroup: boolean, original: JsonValue | null) {
    const packets: Partial<Elem>[] = [];
    const send = vi.fn(async (_target: number, elements: MessageElement[]) => {
        const encoded = await buildSendElems(elements, {
            bridge: {} as never,
            groupId: isGroup ? target : undefined,
        });

        for (const element of encoded) {
            packets.push(protobuf_decode<Elem>(protobuf_encode<Elem>(element)));
        }

        return { messageId: 1, sequence: 100, clientSequence: 0, random: 1, timestamp: time + 1 };
    });
    const ref = {
        uin: '10001',
        selfId: 10001,
        bridge: {
            identity: { nickname: 'SnowLuma' },
            apis: { message: { sendGroup: send, sendPrivate: send } },
        },
        messageStore: {
            findEvent: () =>
                original === null ? null : { user_id: sender, time, message: original },
            findMeta: () => ({
                isGroup,
                targetId: target,
                timestamp: time,
                random: 7,
                sequenceAuthoritative: true,
            }),
            resolveReplySequence: () => sequence,
            storeEvent: vi.fn(),
        },
        converterCtx: {
            selfId: 10001,
            imageUrlResolver: null,
            mediaUrlResolver: null,
            messageIdResolver: null,
            mediaSegmentSink: null,
        },
        cacheMessageMeta: vi.fn(),
        mediaStore: {},
        musicSignUrl: '',
    } as unknown as OneBotInstanceContext;
    await (isGroup ? sendGroupMessage : sendPrivateMessage)(
        ref,
        target,
        [
            { type: 'reply', data: { id: '-12345' } },
            { type: 'text', data: { text: 'answer' } },
        ],
        false,
    );
    expect(send).toHaveBeenCalledOnce();
    expect(packets.find((p) => p.text)?.text?.str).toBe('answer');
    return packets.find((p) => p.srcMsg)?.srcMsg;
}

function preview(src: Partial<Elem>['srcMsg']) {
    return src?.elemsRaw?.map((raw) => protobuf_decode<Elem>(raw).text?.str).join('');
}

describe.each([true, false])('outbound quote preview (group=%s)', (isGroup) => {
    it('carries cached Unicode text through OneBot parsing and wire encoding', async () => {
        const src = await sendQuote(isGroup, [
            { type: 'text', data: { text: '第一段\n' } },
            { type: 'text', data: { text: '第二段😀' } },
        ]);
        expect(src?.origSeqs).toEqual([sequence]);
        expect(src?.senderUin).toBe(BigInt(sender));
        expect(src?.time).toBe(time);
        expect(preview(src)).toBe('第一段\n第二段😀');
    });

    it('previews media without uploading it or recursively quoting earlier replies', async () => {
        const src = await sendQuote(isGroup, [
            { type: 'reply', data: { id: '99' } },
            { type: 'image', data: { file: 'unavailable.png' } },
            { type: 'record', data: { file: 'unavailable.mp3' } },
            { type: 'text', data: { text: '说明' } },
        ]);
        expect(preview(src)).toBe('[图片][语音]说明');
    });

    it('does not invent content when only message metadata is cached', async () => {
        const src = await sendQuote(isGroup, null);
        expect(src?.origSeqs).toEqual([sequence]);
        expect(src?.senderUin).toBe(10001n);
        expect(src?.elemsRaw?.length ?? 0).toBe(0);
    });
});