Files
initiative/apps/web/src/adapters/bestiary-index-adapter.ts

97 lines
2.5 KiB
TypeScript

import type { BestiaryIndex, BestiaryIndexEntry } from "@initiative/domain";
import rawIndex from "../../../../data/bestiary/index.json";
interface CompactCreature {
readonly n: string;
readonly s: string;
readonly ac: number;
readonly hp: number;
readonly dx: number;
readonly cr: string;
readonly ip: number;
readonly sz: string;
readonly tp: string;
}
interface CompactIndex {
readonly sources: Record<string, string>;
readonly creatures: readonly CompactCreature[];
}
function mapCreature(c: CompactCreature): BestiaryIndexEntry {
return {
name: c.n,
source: c.s,
ac: c.ac,
hp: c.hp,
dex: c.dx,
cr: c.cr,
initiativeProficiency: c.ip,
size: c.sz,
type: c.tp,
};
}
// Source codes whose filename on the remote differs from a simple lowercase.
// Plane Shift sources use a hyphen: PSA -> ps-a, etc.
const FILENAME_OVERRIDES: Record<string, string> = {
PSA: "ps-a",
PSD: "ps-d",
PSI: "ps-i",
PSK: "ps-k",
PSX: "ps-x",
PSZ: "ps-z",
};
// Source codes with no corresponding remote bestiary file.
// Excluded from the index entirely so creatures aren't searchable
// without a fetchable source.
const EXCLUDED_SOURCES = new Set<string>([]);
let cachedIndex: BestiaryIndex | undefined;
export function loadBestiaryIndex(): BestiaryIndex {
if (cachedIndex) return cachedIndex;
const compact = rawIndex as unknown as CompactIndex;
const sources = Object.fromEntries(
Object.entries(compact.sources).filter(
([code]) => !EXCLUDED_SOURCES.has(code),
),
);
cachedIndex = {
sources,
creatures: compact.creatures
.filter((c) => !EXCLUDED_SOURCES.has(c.s))
.map(mapCreature),
};
return cachedIndex;
}
export function getAllSourceCodes(): string[] {
const index = loadBestiaryIndex();
return Object.keys(index.sources).filter((c) => !EXCLUDED_SOURCES.has(c));
}
function sourceCodeToFilename(sourceCode: string): string {
return FILENAME_OVERRIDES[sourceCode] ?? sourceCode.toLowerCase();
}
export function getDefaultFetchUrl(
sourceCode: string,
baseUrl?: string,
): string {
const filename = `bestiary-${sourceCodeToFilename(sourceCode)}.json`;
if (baseUrl !== undefined) {
const normalized = baseUrl.endsWith("/") ? baseUrl : `${baseUrl}/`;
return `${normalized}${filename}`;
}
return `https://raw.githubusercontent.com/5etools-mirror-3/5etools-src/main/data/bestiary/${filename}`;
}
export function getSourceDisplayName(sourceCode: string): string {
const index = loadBestiaryIndex();
return index.sources[sourceCode] ?? sourceCode;
}