/*
 *   This file is a part of the SteamWar software.
 *
 *   Copyright (C) 2023 SteamWar.de-Serverteam
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Affero General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU Affero General Public License for more details.
 *
 *   You should have received a copy of the GNU Affero General Public License
 *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

import type {ExtendedEvent, ShortEvent, SWEvent} from "@type/event";
import {fetchWithToken, tokenStore} from "./repo";
import {ExtendedEventSchema, ShortEventSchema, SWEventSchema} from "@type/event.js";
import {z} from "zod";
import type {Dayjs} from "dayjs";
import {derived} from "svelte/store";

export interface CreateEvent {
    name: string;
    start: Dayjs;
    end: Dayjs;
}

export interface UpdateEvent {
    name?: string | null;
    start?: Dayjs | number | null;
    end?: Dayjs | number | null;
    deadline?: Dayjs | number | null;
    maxTeamMembers?: number | null;
    schemType?: string | null;
    publicSchemsOnly?: boolean | null;
    addReferee?: string[] | null;
    removeReferee?: string[] | null;
}

export class EventRepo {
    constructor(private token: string) {
    }

    public async listEvents(): Promise<ShortEvent[]> {
        return await fetchWithToken(this.token, "/events")
            .then(value => value.json())
            .then(value => z.array(ShortEventSchema).parse(value));
    }

    public async getEvent(id: string): Promise<ExtendedEvent> {
        return await fetchWithToken(this.token, `/events/${id}`)
            .then(value => value.json())
            .then(ExtendedEventSchema.parse);
    }

    public async createEvent(event: CreateEvent): Promise<SWEvent> {
        return await fetchWithToken(this.token, "/events", {
            method: "POST",
            body: JSON.stringify({
                name: event.name,
                start: +event.start,
                end: +event.end,
            }),
        }).then(value => value.json())
            .then(SWEventSchema.parse);
    }

    public async updateEvent(id: string, event: UpdateEvent): Promise<SWEvent> {
        return await fetchWithToken(this.token, `/events/${id}`, {
            method: "PUT",
            body: JSON.stringify({
                name: event.name,
                start: event.start?.valueOf(),
                end: event.end?.valueOf(),
                deadline: event.deadline?.valueOf(),
                maxTeamMembers: event.maxTeamMembers,
                schemType: event.schemType,
                publicSchemsOnly: event.publicSchemsOnly,
                addReferee: event.addReferee,
                removeReferee: event.removeReferee,
            }),
            headers: {
                "Content-Type": "application/json",
            },
        }).then(value => value.json())
            .then(SWEventSchema.parse);
    }

    public async deleteEvent(id: string): Promise<boolean> {
        const res = await fetchWithToken(this.token, `/events/${id}`, {
            method: "DELETE",
        });

        return res.ok;
    }
}

export const eventRepo = derived(tokenStore, ($token) => new EventRepo($token));