import type { GroupInvitation, GroupInvite } from '@snowluma/proto-defs/notify';
import { protobuf_encode } from '@snowluma/proton';
import { describe, expect, it } from 'vitest';

import { IdentityService } from '../../src/identity-service';
import type { MsgPushContext } from '../../src/msg-push/context';
import {
    decodeGroupInvitation,
    decodeGroupInvite,
} from '../../src/msg-push/decoders/group-join-request';

const SELF_UIN = 10001;
const GROUP_ID = 12345;

function ctx(
    content: Uint8Array,
    identity = IdentityService.memory(String(SELF_UIN)),
): MsgPushContext {
    return {
        head: {
            msgType: 33,
            subType: 0,
            c2cCmd: 0,
            sequence: 1,
            ntMsgSeq: 0,
            timestamp: 1_710_000_000,
            msgId: 1,
        },
        fromUin: GROUP_ID,
        fromUid: '',
        selfUin: SELF_UIN,
        content,
        body: undefined,
        responseHead: undefined,
        identity,
        isHistorical: false,
    };
}

describe('group invitation push carries the invitee (#394)', () => {
    it('ignores unrelated notification commands', () => {
        const content = protobuf_encode<GroupInvitation>({
            cmd: 86,
            info: {
                inner: {
                    groupUin: GROUP_ID,
                    targetUid: 'u_invitee',
                    invitorUid: 'u_inviter',
                },
            },
        });

        expect(decodeGroupInvitation(ctx(content))).toEqual([]);
    });

    it('keeps the inviter as from* and the invitee as invited*', () => {
        const identity = IdentityService.memory(String(SELF_UIN));
        identity.rememberRequestIdentity({ uid: 'u_inviter', uin: 456, source: 'group_request' });
        identity.rememberRequestIdentity({ uid: 'u_invitee', uin: 789, source: 'group_request' });
        const content = protobuf_encode<GroupInvitation>({
            cmd: 87,
            info: {
                inner: {
                    groupUin: GROUP_ID,
                    targetUid: 'u_invitee',
                    invitorUid: 'u_inviter',
                },
            },
        });

        const [event] = decodeGroupInvitation(ctx(content, identity));
        expect(event).toMatchObject({
            kind: 'group_invite',
            groupId: GROUP_ID,
            fromUin: 456,
            fromUid: 'u_inviter',
            invitedUin: 789,
            invitedUid: 'u_invitee',
            subType: 'invite',
        });
    });

    it('treats a self-invite as inviting the logged-in account', () => {
        const content = protobuf_encode<GroupInvite>({
            groupUin: GROUP_ID,
            invitorUid: 'u_inviter',
        });

        const [event] = decodeGroupInvite(ctx(content));
        expect(event).toMatchObject({
            kind: 'group_invite',
            fromUid: 'u_inviter',
            invitedUin: SELF_UIN,
            subType: 'invite',
        });
    });
});