/*
 *   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 { Page, PageList } from "@type/page.ts";
import { fetchWithToken, tokenStore } from "./repo.ts";
import { PageListSchema, PageSchema } from "@type/page.ts";
import { bytesToBase64 } from "../admin/util.ts";
import { z } from "zod";
import { derived } from "svelte/store";

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

    public async listPages(branch: string = "master"): Promise<PageList> {
        return await fetchWithToken(this.token, `/page?branch=${branch}`)
            .then((value) => value.json())
            .then(PageListSchema.parse)
            .then((value) => value.map((value1) => ({ ...value1, path: value1.path.replace("src/content/", "") })));
    }

    public async getPage(id: number, branch: string = "master"): Promise<Page> {
        return await fetchWithToken(this.token, `/page/${id}?branch=${branch}`)
            .then((value) => value.json())
            .then(PageSchema.parse);
    }

    public async updatePage(id: number, content: string, sha: string, message: string, branch: string = "master"): Promise<void> {
        await fetchWithToken(this.token, `/page/${id}?branch=${branch}`, {
            method: "PUT",
            body: JSON.stringify({
                content: bytesToBase64(new TextEncoder().encode(content)),
                sha,
                message,
            }),
        });
    }

    public async getBranches(): Promise<string[]> {
        return await fetchWithToken(this.token, "/page/branch")
            .then((value) => value.json())
            .then((value) => z.array(z.string()).parse(value));
    }

    public async createBranch(branch: string): Promise<void> {
        await fetchWithToken(this.token, "/page/branch", { method: "POST", body: JSON.stringify({ branch }) });
    }

    public async deleteBranch(branch: string): Promise<void> {
        await fetchWithToken(this.token, "/page/branch", { method: "DELETE", body: JSON.stringify({ branch }) });
    }

    public async createFile(path: string, branch: string = "master", slug: string | null = null, title: string | null = null): Promise<void> {
        await fetchWithToken(this.token, `/page?branch=${branch}`, { method: "POST", body: JSON.stringify({ path, slug, title }) });
    }

    public async merge(branch: string, message: string): Promise<void> {
        await fetchWithToken(this.token, "/page/branch/merge", {
            method: "POST",
            body: JSON.stringify({ branch, message }),
        });
    }

    public async deletePage(id: number, message: string, sha: string, branch: string = "master"): Promise<void> {
        await fetchWithToken(this.token, `/page/${id}?branch=${branch}`, {
            method: "DELETE",
            body: JSON.stringify({ message, sha }),
        });
    }

    public async listImages(branch: string = "master"): Promise<PageList> {
        return await fetchWithToken(this.token, `/page/images?branch=${branch}`)
            .then((value) => value.json())
            .then(PageListSchema.parse)
            .then((value) => value.map((value1) => ({ ...value1, path: value1.path.replace("src/content/", "") })));
    }

    public async createImage(name: string, data: string, branch: string = "master"): Promise<void> {
        await fetchWithToken(this.token, `/page/images?branch=${branch}`, {
            method: "POST",
            body: JSON.stringify({ name, data }),
        });
    }
}

export const pageRepo = derived(tokenStore, ($token) => new PageRepo($token));