import { http_delete_async, http_get_async, http_post_async } from "$lib/api/_fetch";
import { api_base, CookieNames } from "$lib/configuration";
import { is_known_problem } from "$lib/models/internal/KnownProblem";
import type { CreateAccountPayload, CreateAccountResponse, DeleteAccountResponse, IAccountService, LoginPayload, LoginResponse, Session, UpdateAccountPayload, UpdateAccountResponse } from "./abstractions/IAccountService";

export class AccountService implements IAccountService {
    session: Session;
    async login_async(payload: LoginPayload): Promise<LoginResponse> {
        const response = await http_post_async(api_base("_/account/login"), payload);
        return { isLoggedIn: response.ok };
    }
    async logout_async(): Promise<void> {
        const response = await http_get_async(api_base("_/account/logout"));

        if (!response.ok) {
            const deleteCookieResponse = await fetch("/delete-cookie?key=" + CookieNames.session);
            if (!deleteCookieResponse.ok) {
                throw new Error("Could neither logout nor delete session cookie.");
            }
        }

        return;
    }
    async create_account_async(payload: CreateAccountPayload): Promise<CreateAccountResponse> {
        const response = await http_post_async(api_base("_/account/create"), payload);
        if (response.ok) return { isCreated: true };
        if (is_known_problem(response)) return {
            isCreated: false,
            knownProblem: await response.json()
        }

        return {
            isCreated: false
        }
    }
    async delete_current_async(): Promise<DeleteAccountResponse> {
        const response = await http_delete_async(api_base("_/account/delete"));
        return {
            isDeleted: response.ok
        }
    }
    async update_current_async(payload: UpdateAccountPayload): Promise<UpdateAccountResponse> {
        const response = await http_post_async(api_base("_/account/update"), payload);
        if (response.ok) return { isUpdated: true };
        if (is_known_problem(response)) return {
            isUpdated: false,
            knownProblem: await response.json()
        }

        return {
            isUpdated: false
        }
    }
}