import path from "node:path";
import config from "./config.ts";

// Auth / identity
export const WEBAUTHN_RP_NAME = `${config.OWNER_DISPLAY_NAME}'s Hearthforge`;
export const ADMIN_USERNAME = "admin";
export const VALID_USERNAME_RE = /^[a-zA-Z0-9_-]+$/;
export const VALID_REPO_NAME_RE = /^[a-zA-Z0-9._-]+$/;
export const ALLOWED_REACTIONS = new Set([
    "👍",
    "👎",
    "❤️",
    "🎉",
    "😕",
    "👀",
    "🚀",
]);
export const VALID_KEY_TYPES = new Set([
    "ssh-rsa",
    "ssh-ed25519",
    "ecdsa-sha2-nistp256",
    "ecdsa-sha2-nistp384",
    "ecdsa-sha2-nistp521",
    "sk-ssh-ed25519@openssh.com",
    "sk-ecdsa-sha2-nistp256@openssh.com",
]);
export const CHALLENGE_TTL_MS = 5 * 60 * 1000;

// Pagination
export const REPOS_PER_PAGE = 20;
export const COMMITS_PER_PAGE = 20;
export const ISSUES_PER_PAGE = 20;
export const PATCHES_PER_PAGE = 20;
export const RELEASES_PER_PAGE = 20;

// Cache sizes
export const MAX_MD_CACHE = 50;
export const MAX_FILE_CACHE = 500;
export const MAX_DIFF_CACHE = 500;
export const MAX_PATCH_CACHE = 100;

// Paths — derived from config.DATA_DIR via getters so they reflect overrides.
export const paths = {
    get DB_PATH() {
        return path.join(config.DATA_DIR, "hearthforge.db");
    },
    get REPOS_DIR() {
        return path.join(config.DATA_DIR, "repos");
    },
    get AVATARS_DIR() {
        return path.join(config.DATA_DIR, "avatars");
    },
    get RELEASES_DIR() {
        return path.join(config.DATA_DIR, "releases");
    },
    get SSH_HOST_KEY_PATH() {
        return (
            process.env.SSH_HOST_KEY_PATH ??
            path.join(config.DATA_DIR, "ssh_host_key")
        );
    },
    get ALLOWED_SIGNERS_PATH() {
        return path.join(config.DATA_DIR, "allowed_signers");
    },
};