import {
    HttpStatusCode,
    IHttp,
    IModify,
    IPersistence,
    IRead,
} from "@rocket.chat/apps-engine/definition/accessors";
import {
    IApiEndpointInfo,
    IApiRequest,
    IApiResponse,
} from "@rocket.chat/apps-engine/definition/api";
import crypto = require("crypto");
import { RcHttp } from "./RcHttp";
import { SCIMListResponse } from "./scim/ListResponse";
import { SCIMUser } from "./scim/User";
import { IScimEndpoint, ScimEndpoint } from "./ScimEndpoint";

export class UsersEndpoint extends ScimEndpoint implements IScimEndpoint {
    public path = "Users";

    public async _get(
        request: IApiRequest,
        endpoint: IApiEndpointInfo,
        read: IRead,
        modify: IModify,
        http: IHttp,
        persis: IPersistence,
    ): Promise<IApiResponse> {
        const response = await new RcHttp(http, read).get(
            `users.list?query={"type":{"$eq":"user"}}&fields={"createdAt":1}`,
        );
        const o = this.parseResponse(response);
        this.handleError(o);
        const list = new SCIMListResponse();
        list.Resources = o.users.map(SCIMUser.fromRC);
        list.totalResults = o.total;
        return this.success(list);
    }

    public async _post(
        request: IApiRequest,
        endpoint: IApiEndpointInfo,
        read: IRead,
        modify: IModify,
        http: IHttp,
        persis: IPersistence,
    ): Promise<IApiResponse> {
        this.hasContent(request);
        const response = await new RcHttp(http, read).post(
            `users.create`,
            this.scimToUserCreate(SCIMUser.fromPlain(request.content)),
        );
        const o = this.parseResponse(response);
        this.handleError(o);
        const user = SCIMUser.fromRC(o.user);
        return this.response({
            status: HttpStatusCode.CREATED,
            content: user,
        });
    }

    private scimToUserCreate(user: SCIMUser): IUserCreate {
        return {
            email: user.getEmail(),
            name:
                user.displayName ||
                `${user.name.givenName} ${user.name.familyName}` ||
                user.userName,
            username: user.userName,
            password: crypto.randomBytes(64).toString("base64").slice(0, 64),
            verified: true,
            customFields: {
                scimExternalId: user.externalId,
            },
        };
    }
}