tsbase/Persistence/Repository/Persisters/FSPersister/FSPersister.js

Base class libraries for TypeScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FSPersister = void 0;
/**
 * Persists data using the node fs / path api
 */
var FSPersister = /** @class */ (function () {
    function FSPersister(localFilesDirectory, filePath, key, pathResolver, fileSystemAdapter) {
        this.localFilesDirectory = localFilesDirectory;
        this.filePath = filePath;
        this.key = key;
        this.pathResolver = pathResolver;
        this.fileSystemAdapter = fileSystemAdapter;
        this.ensureLocalFilesDirExists();
        this.ensureFileExists();
    }
    Object.defineProperty(FSPersister.prototype, "dir", {
        get: function () {
            return this.pathResolver.resolve(this.localFilesDirectory);
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(FSPersister.prototype, "file", {
        get: function () {
            return this.pathResolver.resolve(this.localFilesDirectory, this.filePath);
        },
        enumerable: false,
        configurable: true
    });
    FSPersister.prototype.Retrieve = function () {
        var json = this.retrieveDataFileJson();
        return json[this.key] ? json[this.key] : [];
    };
    FSPersister.prototype.Persist = function (items) {
        var json = this.retrieveDataFileJson();
        json[this.key] = items;
        this.fileSystemAdapter.writeFileSync(this.file, JSON.stringify(json));
    };
    FSPersister.prototype.Purge = function () {
        this.Persist([]);
    };
    FSPersister.prototype.ensureLocalFilesDirExists = function () {
        if (!this.fileSystemAdapter.existsSync(this.dir)) {
            this.fileSystemAdapter.mkdirSync(this.dir);
        }
    };
    FSPersister.prototype.ensureFileExists = function () {
        try {
            this.fileSystemAdapter.accessSync(this.file, this.fileSystemAdapter.constants.W_OK);
        }
        catch (error) {
            this.writeBlankJsonToFile();
        }
    };
    FSPersister.prototype.writeBlankJsonToFile = function () {
        var blankJson = {};
        this.fileSystemAdapter.writeFileSync(this.file, JSON.stringify(blankJson));
    };
    FSPersister.prototype.retrieveDataFileJson = function () {
        var fileContents = this.fileSystemAdapter.readFileSync(this.pathResolver.resolve(this.localFilesDirectory, this.filePath), 'utf8');
        return JSON.parse(fileContents.toString());
    };
    return FSPersister;
}());
exports.FSPersister = FSPersister;
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