import * as vscode from 'vscode';
import {
  copySelection,
  copyActiveFile,
  copySingleItem,
  copySelectedFiles,
  copyMultiFiles,
} from './copyContext';
import { CopyAiCodeActionProvider } from './codeActionProvider';

export function activate(context: vscode.ExtensionContext) {
  console.log('[copy-ai-ctx] activating...');

  context.subscriptions.push(
    vscode.commands.registerCommand('copy-ai-ctx.copySelection', () => {
      copySelection();
    }),
  );

  context.subscriptions.push(
    vscode.commands.registerCommand('copy-ai-ctx.copyFile', () => {
      copyActiveFile();
    }),
  );

  context.subscriptions.push(
    vscode.commands.registerCommand('copy-ai-ctx.copySelectedFiles', (args) => {
      if (!args) {
        // keyboard shortcut invocation: fallback to active editor file
        const editor = vscode.window.activeTextEditor;
        if (!editor) return;
        copySingleItem(editor.document.uri);
        return;
      }
      copySingleItem(args as vscode.Uri);
    }),
  );

  context.subscriptions.push(
    vscode.commands.registerCommand('copy-ai-ctx.copyMultiFiles', (...args) => {
      if (args.length < 2) {
        // keyboard shortcut invocation: fallback to active editor file
        const editor = vscode.window.activeTextEditor;
        if (!editor) return;
        copyMultiFiles([editor.document.uri]);
        return;
      }
      // args[0] = clicked resource URI
      // args[1] might be array (standard) or individual URI (variadic)
      const resources = Array.isArray(args[1]) ? args[1] : args.slice(1);
      if (resources.length === 0) return;
      copyMultiFiles(resources);
    }),
  );

  console.log('[copy-ai-ctx] activated');

  // Register CodeAction provider (lightbulb on selection)
  context.subscriptions.push(
    vscode.languages.registerCodeActionsProvider(
      { pattern: '**' },
      new CopyAiCodeActionProvider(),
      {
        providedCodeActionKinds:
          CopyAiCodeActionProvider.providedCodeActionKinds,
      },
    ),
  );
}

export function deactivate() {
  // cleanup if needed
}