import regex from '../../utils/regexHelper';

/**
 * contain attributes of every level in the directory schema
 */
class DirLevel {
	/**
	 * Means that is this level's name can be set dynamically.
	 * @type {boolean}
	 */
	dynamic: boolean;
	/**
	 * The meaning of this level.Can be changed when [this.dynamic] is true.
	 * % matches all dir name.
	 * @type {string}
	 */
	name: string | '%';
	/**
	 * The level in the directory schema
	 * @type {number}
	 */
	level: number;

	constructor(dirName: string, level: number) {
		this.dynamic = regex.dynamicDir.test(dirName);
		this.name = dirName;
		this.level = level;
	}

	static createSchema(treeSchema: string) {
		let dirStrArr = treeSchema.split('/');
		dirStrArr = dirStrArr.filter(dirStr => dirStr.length > 0);
		return dirStrArr.map((dirStr, index) => {
			return new DirLevel(dirStr, index);
		});
	}

	static createDirArr(dir: string, schema: DirLevel[]) {
		let dirStrArr = dir.split('/');
		dirStrArr = dirStrArr.filter(dirStr => dirStr.length > 0);
		return dirStrArr.map((dirStr, index) => {
			const level = new DirLevel(dirStr, index);
			level.dynamic = schema[index].dynamic;
			return level;
		});
	}
}

export default DirLevel;