import * as vscode from 'vscode';
import * as path from 'path';
import { EditorMessage, EditorWebApp } from '../ui/EditorWebApp'

export class JsonConfigurator {
    
    constructor(readonly extensionUri: vscode.Uri){}

    public async openConfigurator(configuratorName : string, jsonInstanceUri : vscode.Uri) : Promise<void>{
        const jsonUiAppFolder : vscode.Uri = vscode.Uri.parse(path.join(__dirname, "json-ui-app"));
        const projectManagerIndexUri : vscode.Uri = vscode.Uri.parse(path.join(jsonUiAppFolder.fsPath, "index.html" )) ;
        const uiConfiguratorIndexHtml : string = Buffer.from(await vscode.workspace.fs.readFile( projectManagerIndexUri )).toString();

        const projectManagerApp = new EditorWebApp(this.extensionUri, jsonUiAppFolder, uiConfiguratorIndexHtml, configuratorName, "Configuration");
        // # Handle communication
        projectManagerApp.onMessage(
            async (message: EditorMessage) => {
                await vscode.workspace.fs.writeFile(jsonFileUri, Buffer.from(JSON.stringify(message.value, null, 4)));
            }
        );
    
        const jsonFileUri : vscode.Uri = vscode.Uri.file(jsonInstanceUri.fsPath);
    
        const instanceBuf : Uint8Array = await vscode.workspace.fs.readFile(jsonFileUri);
        const instance : any = JSON.parse(instanceBuf.toString());
    
        const schemaBuf : Uint8Array = await vscode.workspace.fs.readFile(vscode.Uri.file(instance.$schema));
        const schema : string = JSON.parse(schemaBuf.toString());
    
        setTimeout(
            ()=> projectManagerApp.SendMessage(
                new EditorMessage(
                    "info", 
                    undefined, 
                    {
                        schema: schema,
                        data: instance
                    }
                )
            ),
            1000
        );
    }
}