Config: Refactor config to be be in separate classes
This commit is contained in:
Diego Magdaleno
parent
d67b590397
commit
0408065886
@ -368,23 +368,91 @@ const createPlainObject = <T = unknown>(): T => {
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type Serialize<T> = (value: T) => string;
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type Deserialize<T> = (text: string) => T;
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function getConfigPath(): string {
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const configEnvPath = envPaths('fosscord', {suffix: ""}).config;
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const configPath = path.resolve(configEnvPath, 'api.json');
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return configPath
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}
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class Config<T extends Record<string, any> = Record<string, unknown>> implements Iterable<[keyof T, T[keyof T]]> {
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class Store<T extends Record<string, any> = Record<string, unknown>> implements Iterable<[keyof T, T[keyof T]]>{
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readonly path: string;
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readonly #validator?: ValidateFunction;
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readonly #defaultOptions: Partial<T> = {};
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readonly validator: ValidateFunction;
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constructor(path: string, validator: ValidateFunction) {
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this.validator = validator;
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if (fs.existsSync(path)) {
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this.path = path
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} else {
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this._ensureDirectory()
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}
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}
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constructor() {
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private _ensureDirectory(): void {
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fs.mkdirSync(path.dirname(this.path), {recursive: true})
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}
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const ajv = new Ajv();
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protected _validate(data: T | unknown): void {
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const valid = this.validator(data);
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if (valid || !this.validator.errors) {
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return;
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}
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ajvFormats(ajv);
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const errors = this.validator.errors.map(({ instancePath, message = '' }) => `\`${instancePath.slice(1)}\` ${message}`);
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throw new Error('The config schema was violated!: ' + errors.join('; '));
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}
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this.#validator = ajv.compile(schema);
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private _write(value: T): void {
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let data: string | Buffer = this._serialize(value);
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const base = envPaths('fosscord', {suffix: ""}).config;
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try {
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atomically.writeFileSync(this.path, data);
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} catch (error) {
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throw error;
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}
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}
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this.path = path.resolve(base, 'api.json');
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private readonly _serialize: Serialize<T> = value => JSON.stringify(value, undefined, '\t');
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private readonly _deserialize: Deserialize<T> = value => JSON.parse(value);
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public get store(): T {
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try {
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const data = fs.readFileSync(this.path).toString();
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const deserializedData = this._deserialize(data);
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this._validate(deserializedData);
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return Object.assign(Object.create(null), deserializedData)
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} catch (error) {
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if (error.code == 'ENOENT') {
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this._ensureDirectory();
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return Object.create(null);
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}
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throw error;
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}
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}
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public set store(value: T) {
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this._validate(value);
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this._write(value);
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}
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*[Symbol.iterator](): IterableIterator<[keyof T, T[keyof T]]>{
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for (const [key, value] of Object.entries(this.store)) {
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yield [key, value]
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}
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}
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}
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interface Options {
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path: string;
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schemaValidator: ValidateFunction;
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}
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class Config<T extends Record<string, any> = Record<string, unknown>> extends Store<T> implements Iterable<[keyof T, T[keyof T]]> {
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readonly path: string;
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constructor(options: Readonly<Partial<Options>> = {}) {
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super(options.path!, options.schemaValidator!);
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const fileStore = this.store;
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@ -398,68 +466,24 @@ class Config<T extends Record<string, any> = Record<string, unknown>> implements
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}
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}
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public get<Key extends keyof T>(key: Key): T[Key];
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public get<Key extends keyof T>(key: Key, defaultValue: Required<T>[Key]): Required<T>[Key];
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public get<Key extends string, Value = unknown>(key: Exclude<Key, keyof T>, defaultValue?: Value): Value;
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public get(key: string, defaultValue?: unknown): unknown {
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return this._get(key, defaultValue);
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}
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private _has<Key extends keyof T>(key: Key | string): boolean {
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return dotProp.has(this.store, key as string);
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}
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private _validate(data: T | unknown): void {
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if (!this.#validator) {
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return;
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}
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const valid = this.#validator(data);
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if (valid || !this.#validator.errors) {
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return;
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}
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const errors = this.#validator.errors.map(({ instancePath, message = '' }) => `\`${instancePath.slice(1)}\` ${message}`);
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throw new Error('The config schema was violated!: ' + errors.join('; '));
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}
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get store(): T {
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try {
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const data = fs.readFileSync(this.path).toString();
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const deserializedData = this._deserialize(data);
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this._validate(deserializedData);
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return Object.assign(Object.create(null), deserializedData)
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} catch (error) {
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if (error.code == 'ENOENT') {
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this._ensureDirectory();
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return createPlainObject();
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}
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throw error;
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}
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}
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private _ensureDirectory(): void {
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fs.mkdirSync(path.dirname(this.path), { recursive: true })
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}
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set store(value: T) {
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this._validate(value);
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this._write(value);
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}
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private readonly _deserialize: Deserialize<T> = value => JSON.parse(value);
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private readonly _serialize: Serialize<T> = value => JSON.stringify(value, undefined, '\t')
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get<Key extends keyof T>(key: Key): T[Key];
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get<Key extends keyof T>(key: Key, defaultValue: Required<T>[Key]): Required<T>[Key];
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get<Key extends string, Value = unknown>(key: Exclude<Key, keyof T>, defaultValue?: Value): Value;
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get(key: string, defaultValue?: unknown): unknown {
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return this._get(key, defaultValue);
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}
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public getAll(): DefaultOptions {
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return this.store as unknown as DefaultOptions
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}
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private _get<Key extends keyof T>(key: Key): T[Key] | undefined;
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private _get<Key extends keyof T, Default = unknown>(key: Key, defaultValue: Default): T[Key] | Default;
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private _get<Key extends keyof T, Default = unknown>(key: Key | string, defaultValue?: Default): Default | undefined {
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_get<Key extends keyof T>(key: Key): T[Key] | undefined;
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_get<Key extends keyof T, Default = unknown>(key: Key, defaultValue: Default): T[Key] | Default;
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_get<Key extends keyof T, Default = unknown>(key: Key | string, defaultValue?: Default): Default | undefined {
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if (!this._has(key)) {
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throw new Error("Tried to acess a non existant property in the config");
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}
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@ -473,20 +497,12 @@ class Config<T extends Record<string, any> = Record<string, unknown>> implements
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}
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}
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private _write(value: T): void {
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let data: string | Buffer = this._serialize(value);
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try {
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atomically.writeFileSync(this.path, data);
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} catch (error) {
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if (error.code == 'EXDEV') {
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fs.writeFileSync(this.path, data)
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return
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}
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throw error;
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}
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}
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}
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const ajv = new Ajv();
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const validator = ajv.compile(schema);
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export const apiConfig = new Config();
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const configPath = getConfigPath()
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console.log(configPath)
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export const apiConfig = new Config({path: configPath, schemaValidator: validator});
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