68 lines
2.6 KiB
TypeScript
68 lines
2.6 KiB
TypeScript
import fs from 'node:fs/promises';
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import path from 'node:path';
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import {
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parseScenarioDefaults,
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parseScenarioDefinition,
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type ScenarioDefaults,
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type ScenarioDefinition,
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} from '@sammo-ts/logic';
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import { resolveWorkspaceRoot } from '../paths.js';
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import { composeScenarioResource } from './scenarioComposition.js';
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const REPO_ROOT = resolveWorkspaceRoot();
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const DEFAULT_SCENARIO_ROOT = path.resolve(REPO_ROOT, 'resources', 'scenario');
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export interface ScenarioLoaderOptions {
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scenarioRoot?: string;
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defaultsFileName?: string;
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}
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const readJsonFile = async (filePath: string): Promise<unknown> => {
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const raw = await fs.readFile(filePath, 'utf8');
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return JSON.parse(raw) as unknown;
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};
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const resolveScenarioRoot = (options?: ScenarioLoaderOptions): string => options?.scenarioRoot ?? DEFAULT_SCENARIO_ROOT;
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export const resolveScenarioDefaultsPath = (options?: ScenarioLoaderOptions): string =>
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path.resolve(resolveScenarioRoot(options), options?.defaultsFileName ?? 'default.json');
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const resolveScenarioPath = (options: ScenarioLoaderOptions | undefined, scenarioId: number): string =>
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path.resolve(resolveScenarioRoot(options), `scenario_${scenarioId}.json`);
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const loadScenarioDefaults = async (defaultsPath: string): Promise<ScenarioDefaults> => {
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// 기본 시나리오 파일을 읽고 정규화한다.
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const raw = await readJsonFile(defaultsPath);
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return parseScenarioDefaults(raw);
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};
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const loadScenarioDefinition = async (
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scenarioPath: string,
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defaults: ScenarioDefaults
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): Promise<ScenarioDefinition> => {
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// 시나리오 확장 조각을 먼저 합성한 뒤 기본값과 함께 정규화한다.
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const scenarioRoot = path.dirname(scenarioPath);
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const raw = await composeScenarioResource(path.basename(scenarioPath), async (relativePath) => {
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const resolvedPath = path.resolve(scenarioRoot, relativePath);
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const rootPrefix = `${path.resolve(scenarioRoot)}${path.sep}`;
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if (!resolvedPath.startsWith(rootPrefix)) {
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throw new Error(`Scenario resource path escapes the configured root: ${relativePath}.`);
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}
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return readJsonFile(resolvedPath);
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});
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return parseScenarioDefinition(raw, defaults);
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};
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export const loadScenarioDefinitionById = async (
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scenarioId: number,
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options?: ScenarioLoaderOptions
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): Promise<ScenarioDefinition> => {
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// 시나리오 번호로 파일을 찾고 파싱한다.
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const defaultsPath = resolveScenarioDefaultsPath(options);
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const scenarioPath = resolveScenarioPath(options, scenarioId);
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const defaults = await loadScenarioDefaults(defaultsPath);
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return loadScenarioDefinition(scenarioPath, defaults);
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};
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