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import HashTable from '../hash-table/HashTable';

export default class TrieNode {

/**

* @param {string} character

* @param {boolean} isCompleteWord

*/

constructor(character, isCompleteWord = false) {

this.character = character;

this.isCompleteWord = isCompleteWord;

this.children = new HashTable();

}

/**

* @param {string} character

* @return {TrieNode}

*/

getChild(character) {

return this.children.get(character);

}

/**

* @param {string} character

* @param {boolean} isCompleteWord

* @return {TrieNode}

*/

addChild(character, isCompleteWord = false) {

if (!this.children.has(character)) {

this.children.set(character, new TrieNode(character, isCompleteWord));

}

return this.children.get(character);

}

/**

* @param {string} character

* @return {boolean}

*/

hasChild(character) {

return this.children.has(character);

}

/**

* @return {string[]}

*/

suggestChildren() {

return [...this.children.getKeys()];

}

/**

* @return {string}

*/

toString() {

let childrenAsString = this.suggestChildren().toString();

childrenAsString = childrenAsString ? `:${childrenAsString}` : '';

const isCompleteString = this.isCompleteWord ? '*' : '';

return `${this.character}${isCompleteString}${childrenAsString}`;

}

}