project-helper.ts

import * as path from "path";

export class ProjectHelper implements IProjectHelper {
	constructor(private $logger: ILogger,
		private $fs: IFileSystem,
		private $staticConfig: Config.IStaticConfig,
		private $errors: IErrors,
		private $options: IOptions) { }

	private cachedProjectDir = "";

	public get projectDir(): string {
		if (this.cachedProjectDir !== "") {
			return this.cachedProjectDir;
		}
		this.cachedProjectDir = null;

		let projectDir = path.resolve(this.$options.path || ".");
		while (true) {
			this.$logger.trace("Looking for project in '%s'", projectDir);
			const projectFilePath = path.join(projectDir, this.$staticConfig.PROJECT_FILE_NAME);

			if (this.$fs.exists(projectFilePath) && this.isProjectFileCorrect(projectFilePath)) {
				this.$logger.debug("Project directory is '%s'.", projectDir);
				this.cachedProjectDir = projectDir;
				break;
			}

			const dir = path.dirname(projectDir);
			if (dir === projectDir) {
				this.$logger.debug("No project found at or above '%s'.", this.$options.path || path.resolve("."));
				break;
			}
			projectDir = dir;
		}

		return this.cachedProjectDir;
	}

	public generateDefaultAppId(appName: string, baseAppId: string): string {
		let sanitizedName = this.sanitizeName(appName);
		if (sanitizedName) {
			if (/^\d+$/.test(sanitizedName)) {
				sanitizedName = "the" + sanitizedName;
			}
		} else {
			sanitizedName = "the";
		}

		return `${baseAppId}.${sanitizedName}`;
	}

	public sanitizeName(appName: string): string {
		const sanitizedName = _.filter(appName.split(""), (c) => /[a-zA-Z0-9]/.test(c)).join("");
		return sanitizedName;
	}

	private isProjectFileCorrect(projectFilePath: string): boolean {
		if (this.$staticConfig.CLIENT_NAME_KEY_IN_PROJECT_FILE) {
			try {
				const fileContent = this.$fs.readJson(projectFilePath);
				const clientSpecificData = fileContent[this.$staticConfig.CLIENT_NAME_KEY_IN_PROJECT_FILE] && fileContent[this.$staticConfig.CLIENT_NAME_KEY_IN_PROJECT_FILE].id;
				return !!clientSpecificData;
			} catch (err) {
				this.$errors.failWithoutHelp("The project file is corrupted. Additional technical information: %s", err);
			}
		}

		return true;
	}
}
$injector.register("projectHelper", ProjectHelper);