import { UserGroups, UserGroupJoinings } from "../../../../../models/index.js";
import define from "../../../define.js";
import { ApiError } from "../../../error.js";
import { getUser } from "../../../common/getters.js";
export const meta = {
    tags: [
        "groups",
        "users"
    ],
    requireCredential: true,
    kind: "write:user-groups",
    description: "Transfer ownership of a group from the authenticated user to another user.",
    res: {
        type: "object",
        optional: false,
        nullable: false,
        ref: "UserGroup"
    },
    errors: {
        noSuchGroup: {
            message: "No such group.",
            code: "NO_SUCH_GROUP",
            id: "8e31d36b-2f88-4ccd-a438-e2d78a9162db"
        },
        noSuchUser: {
            message: "No such user.",
            code: "NO_SUCH_USER",
            id: "711f7ebb-bbb9-4dfa-b540-b27809fed5e9"
        },
        noSuchGroupMember: {
            message: "No such group member.",
            code: "NO_SUCH_GROUP_MEMBER",
            id: "d31bebee-196d-42c2-9a3e-9474d4be6cc4"
        }
    }
};
export const paramDef = {
    type: "object",
    properties: {
        groupId: {
            type: "string",
            format: "misskey:id"
        },
        userId: {
            type: "string",
            format: "misskey:id"
        }
    },
    required: [
        "groupId",
        "userId"
    ]
};
export default define(meta, paramDef, async (ps, me)=>{
    // Fetch the group
    const userGroup = await UserGroups.findOneBy({
        id: ps.groupId,
        userId: me.id
    });
    if (userGroup == null) {
        throw new ApiError(meta.errors.noSuchGroup);
    }
    // Fetch the user
    const user = await getUser(ps.userId).catch((e)=>{
        if (e.id === "15348ddd-432d-49c2-8a5a-8069753becff") throw new ApiError(meta.errors.noSuchUser);
        throw e;
    });
    const joining = await UserGroupJoinings.findOneBy({
        userGroupId: userGroup.id,
        userId: user.id
    });
    if (joining == null) {
        throw new ApiError(meta.errors.noSuchGroupMember);
    }
    await UserGroups.update(userGroup.id, {
        userId: ps.userId
    });
    return await UserGroups.pack(userGroup.id);
});