import {
    HttpStatusCode,
    IHttp,
    IModify,
    IPersistence,
    IRead,
} from "@rocket.chat/apps-engine/definition/accessors";
import {
    ApiEndpoint,
    IApiEndpointInfo,
    IApiRequest,
    IApiResponse,
} from "@rocket.chat/apps-engine/definition/api";
const crypto = require("crypto");

export class UsersEndpoint extends ApiEndpoint {
    public path = "Users";
    // private http: IHttp;
    // private authHeaders: { [key: string]: string };

    // constructor(app: IApp) {
    //     super(app);
    // }

    // private async updateState(http: IHttp, read: IRead) {
    //     this.http = http;
    //     this.authHeaders = {
    //         "X-User-Id": await read
    //             .getEnvironmentReader()
    //             .getSettings()
    //             .getValueById("rc-user-id"),
    //         "X-Auth-Token": await read
    //             .getEnvironmentReader()
    //             .getSettings()
    //             .getValueById("rc-token"),
    //     };
    // }

    private async getAuthHeaders(
        read: IRead
    ): Promise<{ [key: string]: string }> {
        return {
            "X-User-Id": await read
                .getEnvironmentReader()
                .getSettings()
                .getValueById("rc-user-id"),
            "X-Auth-Token": await read
                .getEnvironmentReader()
                .getSettings()
                .getValueById("rc-token"),
        };
    }

    // private scimToRC(user: ISCIMUser): IUser {
    //     return {
    //         email: user.emails[0].value,
    //         name: user.displayName,
    //         password: "P@ssw0rd",
    //         username: user.userName,
    //         verified: true,
    //     };
    // }

    private scimToUserCreate(user: ISCIMUser): IUserCreate {
        return {
            email: user.emails[0].value,
            name: user.displayName,
            username: user.userName,
            password: crypto.randomBytes(64).toString("base64").slice(0, 64),
            verified: true,
            customFields: {
                scimExternalId: user.externalId
            }
        };
    }

    private rcToSCIM(user: IUser): ISCIMUser {
        return {
            id: user._id,
            externalId: "",
            emails: [
                { type: "work", primary: true, value: user.emails[0].address },
            ],
            displayName: user.name,
            userName: user.username,
            active: user.active === undefined ? true : user.active,
        };
    }

    public async get(
        request: IApiRequest,
        endpoint: IApiEndpointInfo,
        read: IRead,
        modify: IModify,
        http: IHttp,
        persis: IPersistence
    ): Promise<IApiResponse> {
        let users: Array<ISCIMUser> = [];
        try {
            const response = await http.get(
                `http://localhost:3000/api/v1/users.list?query={"type": {"$eq": "user"}}`,
                {
                    headers: {
                        ...(await this.getAuthHeaders(read)),
                        "Content-Type": "application/json",
                    },
                }
            );
            if (!response.content) throw new Error("Empty response");
            const o = JSON.parse(response.content);
            if (!o.success) throw new Error(o.error);
            // user = this.rcToSCIM(o.user);
            users = o.users.map(this.rcToSCIM);
        } catch (e) {
            return {
                headers: {
                    "Content-Type": "application/json+scim",
                },
                status: HttpStatusCode.BAD_REQUEST,
                content: { message: e.message },
            };
        }
        return {
            headers: {
                "Content-Type": "application/json+scim",
            },
            status: HttpStatusCode.FOUND,
            content: users,
        };
    }

    public async post(
        request: IApiRequest,
        endpoint: IApiEndpointInfo,
        read: IRead,
        modify: IModify,
        http: IHttp,
        persis: IPersistence
    ): Promise<IApiResponse> {
        let user = request.content;
        try {
            const response = await http.post(
                "http://localhost:3000/api/v1/users.create",
                {
                    headers: {
                        ...(await this.getAuthHeaders(read)),
                        "Content-Type": "application/json",
                    },
                    content: JSON.stringify(
                        this.scimToUserCreate(request.content)
                    ),
                }
            );
            if (!response.content) throw new Error("Empty response");
            const o = JSON.parse(response.content);
            if (!o.success) throw new Error(o.error);
            // user = this.rcToSCIM(o.user);
            user = this.rcToSCIM(o.user);
        } catch (e) {
            return {
                headers: {
                    "Content-Type": "application/json+scim",
                },
                status: HttpStatusCode.BAD_REQUEST,
                content: { message: e.message },
            };
        }
        return {
            headers: {
                "Content-Type": "application/json+scim",
            },
            status: HttpStatusCode.CREATED,
            content: user,
        };
    }
}