import { ANCHOR_PREFIX } from "#configuration/constants/document.constants";
import { HOME_PAGE } from "#core/ids/page.ids";

export const HOME_PATH = "/";

const QUERY_MARK = "?";

const pathOnly = function pathOnly(href: string): string {
    const stops = [href.indexOf(QUERY_MARK), href.indexOf(ANCHOR_PREFIX)].filter((at) => at !== -1);
    return stops.length === 0 ? href : href.slice(0, Math.min(...stops));
};

const segmentsOf = function segmentsOf(pathname: string): string[] {
    return pathOnly(pathname)
        .split(HOME_PATH)
        .filter((segment) => segment.length > 0);
};

export const pagePath = function pagePath(page: string): string {
    return page === HOME_PAGE ? HOME_PATH : HOME_PATH + page;
};

export const pageFromPath = function pageFromPath(pathname: string, home: string): string {
    const [page] = segmentsOf(pathname);
    return page ?? home;
};

export const tabFromPath = function tabFromPath(pathname: string): string | null {
    const [, tab] = segmentsOf(pathname);
    return tab ?? null;
};

export const tabLink = function tabLink(page: string, tab: string, section?: string): string {
    const base = `${pagePath(page)}${HOME_PATH}${tab}`;
    return section === undefined ? base : base + ANCHOR_PREFIX + section;
};

export const tabPath = function tabPath(page: string, tabs: readonly { readonly id: string }[], tab: string): string {
    return tab === tabs[0]?.id ? pagePath(page) : tabLink(page, tab);
};

const JSON_ROUTE = "/json/";

export const payloadPath = function payloadPath(page: string, tab: string | null = null): string {
    return tab === null ? JSON_ROUTE + page : JSON_ROUTE + page + HOME_PATH + tab;
};

export const SITE_URL = "https://banes-lab.com";

export const AUTHOR_ADDRESS = "jay@banes-lab.com";

export const AUTHOR_MAIL = `mailto:${AUTHOR_ADDRESS}`;

export const CONTACT_MAIL = "contact@banes-lab.com";

export const AUTHOR_PROFILE = "https://linkedin.com/in/jay-baleine";

export const AUTHOR_DISCORD = "https://discord.com/users/406828985696387081";

export const AUTHOR_GITHUB = "https://github.com/Varietyz";

export const METHODOLOGY_REPOSITORY = "https://github.com/Varietyz/Disciplined-AI-Software-Development";

const LICENSE_ROOT = "/assets/licenses/pag/";

export const LICENSE_FILE = `${LICENSE_ROOT}LICENSE`;

export const LICENSE_HEADER_FILE = `${LICENSE_ROOT}license-header.txt`;

export const LICENSE_INQUIRY_MAIL = `${AUTHOR_MAIL}?subject=PAG Commercial License Inquiry`;

export const GRAMMAR_REPOSITORY = "https://github.com/Varietyz/pag-lang";

export const CREATIVE_COMMONS = "https://creativecommons.org/licenses/by-sa/4.0/";