mirror of https://github.com/tycrek/ass
xwashere
11 months ago
parent
5620d0bed3
commit
ce3ad10281
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import { AssFile, AssUser, FilesSchema, UsersSchema } from 'ass';
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import path, { resolve } from 'path';
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import fs from 'fs-extra';
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import { Database, DatabaseTable, DatabaseValue } from './database';
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import { log } from '../log';
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import { nanoid } from '../generators';
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/**
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* Absolute filepaths for JSON data files
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*/
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const PATHS = {
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files: path.join('.ass-data/files.json'),
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users: path.join('.ass-data/users.json')
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};
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/**
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* map from tables to paths
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*/
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const PATHMAP = {
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assfiles: PATHS.files,
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assusers: PATHS.users
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} as { [index: string]: string };
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/**
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* map from tables to sectors
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*/
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const SECTORMAP = {
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assfiles: 'files',
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assusers: 'users'
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} as { [index: string]: string };
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const bothWriter = async (files: FilesSchema, users: UsersSchema) => {
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await fs.writeJson(PATHS.files, files, { spaces: '\t' });
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await fs.writeJson(PATHS.users, users, { spaces: '\t' });
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};
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/**
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* Creates a JSON file with a given empty data template
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*/
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const createEmptyJson = (filepath: string, emptyData: any): Promise<void> => new Promise(async (resolve, reject) => {
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try {
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if (!(await fs.pathExists(filepath))) {
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await fs.ensureFile(filepath);
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await fs.writeJson(filepath, emptyData, { spaces: '\t' });
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}
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resolve(void 0);
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} catch (err) {
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reject(err);
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}
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});
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/**
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* Ensures the data files exist and creates them if required
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*/
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export const ensureFiles = (): Promise<void> => new Promise(async (resolve, reject) => {
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log.debug('Checking data files');
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try {
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// Create data directory
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await fs.ensureDir(path.join('.ass-data'));
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// * Default files.json
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await createEmptyJson(PATHS.files, {
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files: {},
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useSql: false,
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meta: {}
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} as FilesSchema);
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// * Default users.json
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await createEmptyJson(PATHS.users, {
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tokens: [],
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users: {},
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cliKey: nanoid(32),
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useSql: false,
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meta: {}
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} as UsersSchema);
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log.debug('Data files exist');
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resolve();
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} catch (err) {
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log.error('Failed to verify existence of data files');
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reject(err);
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}
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});
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/**
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* JSON database
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*/
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export class JSONDatabase implements Database {
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open(): Promise<void> { return Promise.resolve() }
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close(): Promise<void> { return Promise.resolve() }
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configure(): Promise<void> {
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return new Promise((resolve, reject) => {
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ensureFiles();
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resolve();
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});
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}
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put(table: DatabaseTable, key: string, data: DatabaseValue): Promise<void> {
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return new Promise(async (resolve, reject) => {
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if (table == 'assfiles') {
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// ? Local JSON
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const filesJson = await fs.readJson(PATHS.files) as FilesSchema;
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// Check if key already exists
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if (filesJson.files[key] != null) return reject(new Error(`File key ${key} already exists`));
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// Otherwise add the data
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filesJson.files[key] = data as AssFile;
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// Also save the key to the users file
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const usersJson = await fs.readJson(PATHS.users) as UsersSchema;
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// todo: uncomment this once users are implemented
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// usersJson.users[data.uploader].files.push(key);
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// Save the files
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await bothWriter(filesJson, usersJson);
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resolve()
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} else if (table == 'assusers') {
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// ? Local JSON
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const usersJson = await fs.readJson(PATHS.users) as UsersSchema;
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// Check if key already exists
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if (usersJson.users[key] != null) return reject(new Error(`User key ${key} already exists`));
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// Otherwise add the data
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usersJson.users[key] = data as AssUser;
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await fs.writeJson(PATHS.users, usersJson, { spaces: '\t' });
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resolve();
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}
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})
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}
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get(table: DatabaseTable, key: string): Promise<DatabaseValue | undefined> {
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return new Promise(async (resolve, reject) => {
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const data = (await fs.readJson(PATHMAP[table]))[SECTORMAP[table]][key];
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(!data) ? resolve(undefined) : resolve(data);
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});
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}
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getAll(table: DatabaseTable): Promise<{ [index: string]: DatabaseValue }> {
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return new Promise(async (resolve, reject) => {
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const data = (await fs.readJson(PATHMAP[table]))[SECTORMAP[table]];
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(!data) ? resolve({}) : resolve(data);
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});
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}
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}
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