import * as vscode from 'vscode';
import * as path from 'path';
import { CodeParser } from './parser/codeParser';
import { TkinterDesignerProvider } from './webview/tkinterDesignerProvider';

export function activate(context: vscode.ExtensionContext) {3
    const openDesignerCommand = vscode.commands.registerCommand(
        'tkinter-designer.openDesigner',
        () => {
             TkinterDesignerProvider.createNew(context.extensionUri);
        }
    );

    const parseCodeCommand = vscode.commands.registerCommand(
        'tkinter-designer.parseCode',
        async () => {
            const activeEditor = vscode.window.activeTextEditor;

            if (activeEditor && activeEditor.document.languageId === 'python') {
                const parser = new CodeParser();
                const code = activeEditor.document.getText();
                const fileName = path.basename(
                    activeEditor.document.fileName,
                    '.py'
                );

                try {
                    const designData = await parser.parseCodeToDesign(
                        code,
                        fileName
                    );
                    if (
                        designData &&
                        designData.widgets &&
                        designData.widgets.length > 0
                    ) {
                        const designerInstance = TkinterDesignerProvider.createNew(
                                context.extensionUri
                        );
                        
                        designerInstance.loadDesignData(designData);

                        vscode.window.showInformationMessage(
                            `Code parsed successfully! Found ${designData.widgets.length} widgets.`
                        );
                    } else {
                        vscode.window.showWarningMessage(
                            'No tkinter widgets found in the code. Make sure your code contains tkinter widget creation statements like tk.Label(), tk.Button(), etc.'
                        );
                    }
                } catch (error) {
                    vscode.window.showErrorMessage(
                        `Error parsing code: ${error}`
                    );
                }
            } else {
                vscode.window.showErrorMessage(
                    'Please open a Python file with tkinter code'
                );
            }
        }
    );

    context.subscriptions.push(
        openDesignerCommand,
        parseCodeCommand
    );
}

export function deactivate() {}