import * as vscode from 'vscode';
import { TplQuickFix } from './TplQuickFix';

export class MetadataFix implements TplQuickFix {
    public readonly diagnosticCode = 'missing_module_metadata';

    public provideFix(document: vscode.TextDocument, diagnostic: vscode.Diagnostic): vscode.CodeAction[] {
        const fix = new vscode.CodeAction("Fehlende Metadaten generieren", vscode.CodeActionKind.QuickFix);
        fix.edit = new vscode.WorkspaceEdit();
        
        // Einstellungen laden
        const config = vscode.workspace.getConfiguration('tpl');
        const author = config.get<string>('metadata.author', 'Kuro');
        const origin = config.get<string>('metadata.origin', 'Custom');
        const publisher = config.get<string>('metadata.publisher', 'IT-Operations');
        const treePathBase = config.get<string>('metadata.treePathBase', 'Grafing');

        // Herausfinden, welche Felder fehlen (steht im Diagnostic-Message-String)
        const missingFieldsStr = diagnostic.message.replace('Fehlende Pflicht-Metadaten (Modul-Ebene): ', '');
        const missingFields = missingFieldsStr.split(', ');
        
        let insertText = '';
        if (missingFields.includes('origin')) insertText += `    origin := '${origin}';\n`;
        if (missingFields.includes('author')) insertText += `    author := '${author}';\n`;
        if (missingFields.includes('products')) insertText += `    products := 'TODO_Product';\n`;
        if (missingFields.includes('publishers')) insertText += `    publishers := '${publisher}';\n`;
        if (missingFields.includes('tree_path')) insertText += `    tree_path := '${treePathBase}', 'TODO_Category', 'TODO_Subcategory';\n`;

        // Direkt über der Zeile 'end metadata;' einfügen
        fix.edit.insert(document.uri, new vscode.Position(diagnostic.range.start.line, 0), insertText);
        fix.diagnostics = [diagnostic];
        
        return [fix];
    }
}