import {Component, OnInit, ViewChild} from '@angular/core';
import {ActivatedRoute, Router} from '@angular/router';
import {InputComponent} from '../input/input.component';
import {IdeCompileComponent} from '../ide-compile/ide-compile.component';
import {RunCodeService} from '../run-code.service';
import {SaveFileComponent} from '../save-file/save-file.component';
import {File} from '../file';
import {FileService} from '../file.service';
import {ApiService} from '../api.service';
declare const CodeMirror: any;
@Component({
selector: 'app-ide',
templateUrl: './ide.component.html',
styleUrls: ['./ide.component.scss']
})
export class IdeComponent implements OnInit {
inp = '';
extensions = ['.cpp', '.py', '.java'];
loadingFile = false;
isSaved = false;
isUploading = false;
isCompiling = false;
isError = false;
isUpToDate = false;
file: File = {
filename: 'Untitled',
language: '.cpp',
text: '',
username: JSON.parse(this.apiService.getToken()).username,
path: '/'
};
@ViewChild(InputComponent) inputField;
@ViewChild(IdeCompileComponent) runField;
@ViewChild(SaveFileComponent) saveField;
constructor(public route: ActivatedRoute, public runCodeService: RunCodeService, private fileService: FileService,
private apiService: ApiService, private router: Router) {
}
ngOnInit(): void {
const filepath = decodeURIComponent(this.route.snapshot.params.filepath);
const editorArea = document.getElementById('editor');
const editor = CodeMirror.fromTextArea(editorArea as HTMLTextAreaElement, {
lineNumbers: true,
theme: 'material-ocean',
mode: 'text/x-c++src',
autoCloseBrackets: true,
matchBrackets: true
});
editor.setSize('auto', '70vh');
Object.assign((document.getElementsByClassName('CodeMirror')[0] as HTMLTextAreaElement).style, {
borderBottom: '1px solid #ddf',
padding: '20px',
fontFamily: '"Anonymous Pro", monospace',
});
let activeLang = 0;
const langs = ['C++', 'Python', 'Java'];
const langsMime = ['text/x-c++src', 'text/x-python', 'text/x-java'];
const code = [`#include <iostream>
using namespace std;
int main() {
cout << "Hello World!\\n";
return 0;
}`, `print("Hello World!")`, `class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}`];
editor.setValue(code[activeLang]);
this.file.text = code[activeLang];
const tl = document.getElementById('toggle-lang') as HTMLDivElement;
tl.onclick = () => {
if (this.isSaved) {
return;
}
activeLang = (activeLang + 1) % 3;
this.file.language = this.extensions[activeLang];
tl.innerHTML = langs[activeLang];
editor.setValue(code[activeLang]);
editor.setOption('mode', langsMime[activeLang]);
};
editor.on('update', () => {
if (!this.isUploading) {
this.isUpToDate = false;
document.getElementById('saveBtn').innerHTML = 'Save File';
}
code[activeLang] = editor.getValue();
this.file.text = editor.getValue();
});
if (filepath !== 'new') {
const arr = filepath.split('.');
if (!(['cpp', 'py', 'java']).includes(arr[arr.length - 1])) {
this.router.navigate(['arena/file/new']).then(() => window.location.reload());
}
const arrf = filepath.split('/');
const arrg = arrf.pop().split('.');
arrg.pop();
this.file.filename = arrg.join('.');
this.file.path = arrf.join('/');
this.file.language = '.' + arr[arr.length - 1];
tl.innerHTML = langs[this.extensions.indexOf(this.file.language)];
this.fileService.getFileContent(this.file.username, filepath)
.subscribe(data => {
editor.setValue(data);
this.isSaved = true;
this.isUpToDate = true;
this.loadingFile = false;
console.log(this.file);
}, error => {
this.router.navigate(['arena/file/new']).then(() => window.location.reload());
});
} else {
this.loadingFile = false;
}
}
/**
* Updates the value of the custom input, called on submission through the input subcomponent.
* @param val - The value received from the custom input subcomponent.
*/
updateInput(val: string): void {
this.inp = val;
}
/**
* Posts the latest content of the file and updates the content on the server, called on clicking the 'Save File' button on the IDE.
*/
updateFile(): void {
const btn = document.getElementById('saveBtn') as HTMLButtonElement;
if (btn.classList.contains('disabled')) {
return;
}
this.isUploading = true;
btn.innerHTML = 'Saving...';
this.fileService.upload(this.file, false)
.subscribe(data => {
btn.innerHTML = 'Saved';
this.isUploading = false;
this.isUpToDate = true;
console.log(data);
}, error => {
console.log(error);
this.isUploading = false;
btn.innerHTML = 'Save File';
});
}
/**
* Requests the server to compile (not to save first) the file into an executable; on it being successful, requests it to execute the
* generated executable providing the custom input.
*/
runFile(): void {
const btn = document.getElementById('runBtn');
if (btn.classList.contains('disabled')) {
return;
}
this.isCompiling = true;
this.runCodeService.compileFile(this.file)
.subscribe(data => {
this.runCodeService.executeFile(this.file, this.inp)
.subscribe(d => {
console.log(d);
this.runField.status = '<div class="code">' + d + '</div>';
this.runField.setState(true);
this.isCompiling = false;
}, err => {
console.log(err);
this.isCompiling = false;
this.isError = true;
this.runField.status = '<div class="error">Runtime Error!</div>';
this.runField.setState(true);
setTimeout(() => {
this.isError = false;
}, 3000);
});
}, error => {
console.log(error);
this.isCompiling = false;
this.isError = true;
this.runField.status = '<div class="error">Compilation Error!</div>';
this.runField.setState(true);
setTimeout(() => {
this.isError = false;
}, 3000);
});
}
/**
* Returns the optimized URI or the canonical form of a string representing a filepath. Used to optimize the filepath of the file being
* edited.
* @param uri - Input, unoptimized path of the file being edited.
*/
optimizeURI(uri: string): string {
const ret: string[] = [];
for (const c of uri.split('/')) {
if (c === '' || c === '.') {
} else if (c === '..') {
ret.pop();
} else {
ret.push(c);
}
}
return ret.join('') === '' ? '/' : '/' + ret.join('/') + '/';
}
}