115 lines
3.1 KiB
JavaScript
115 lines
3.1 KiB
JavaScript
class Command{
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/**
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*
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* @param {{string, function()}} param0
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*/
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constructor({command,callback}){
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this.command = command;
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this.callback = callback;
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this.requireInput = false;
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this.inputPos = [];
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this._requireInput();
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}
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/**
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*
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* @param {string} message
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*/
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equals(message){
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let msg = message.trim();
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//check if the command is exactly equals to the msg
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//if mathces then return true
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//else if we check if the command requires an input
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//if not, then we return false
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if(this.command == msg){
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return true
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}else if(this.requireInput){
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//the command requires input
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let splitCommand = this.command.split(' ');
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let splitMsg = this._getInputMessage(message);
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//check the number of words both has
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//if not same then return false
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//else iterate through all the words
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if(splitCommand.length == splitMsg.length)
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{
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for(let i = 0; i < splitMsg.length; i++)
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{
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//if words matches then continue
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//if the word is a input then continue
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//else return false
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if(splitMsg[i] == splitCommand[i]){
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continue;
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}else if(splitCommand[i].match(/[<>]/g) != null){
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continue;
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}else{
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return false;
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}
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}
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// all the words are matched to each other or to an input field
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return true;
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}
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//the message is not the same as the command
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return false;
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}
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return false;
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}
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/**
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* Only used in class
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*
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* This determines if the command requires input
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* if the command has <inputName> in the string
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* then the command requires input
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*/
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_requireInput(){
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let msg = this.command;
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let matched = msg.match(/[<>]/g);
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this.requireInput = matched != null && matched.length > 1;
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}
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/**
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* returns an array of string representing the inputs of the command
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* @param {string} message
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*/
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getInput(message){
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let splitMsg = this._getInputMessage(message);
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let splitCommand = this.command.split(' ');
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let input = {};
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let debug = '';
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for(let i = 0; i < splitMsg.length; i++){
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if(splitCommand[i].startsWith('<')){
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let key = splitCommand[i].slice(1, splitCommand[i].length-1);
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input[key] = splitMsg[i];
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}
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}
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return input;
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}
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_getInputMessage(msg){
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let split = msg.split(/['"]/g);
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if(split.length > 1)
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{
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let splitMsg = split[0].trim().split(' ');
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let inputs = split.slice(1).filter( el => el.trim() == "" ? null : el);
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splitMsg = splitMsg.concat(inputs);
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return splitMsg;
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}
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return msg.split(' ');
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}
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}
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module.exports.Command = Command;
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