import * as fs from 'fs';
import * as vscode from 'vscode';
import { MemFs } from './fileSystemProvider';
import { Manager } from './manager';

const workspace = vscode.workspace;

export function activate(context: vscode.ExtensionContext) {
  const manager = new Manager(context);

  context.subscriptions.push(vscode.workspace.registerFileSystemProvider('ssh', manager, { isCaseSensitive: true }));

  context.subscriptions.push(vscode.commands.registerCommand('sshfs.new', async () => {
    const name = await vscode.window.showInputBox({ placeHolder: 'Name for the new SSH file system', validateInput: manager.invalidConfigName.bind(manager) });
    vscode.window.showTextDocument(vscode.Uri.parse(`ssh://<config>/${name}.json`));
  }));

  async function pickAndClick(func: (name: string) => void, activeOrNot: boolean) {
    const active = manager.getActive();
    const names = activeOrNot ? active : manager.loadConfigs().map(c => c.name).filter(n => active.indexOf(n) === -1);
    const pick = await vscode.window.showQuickPick(names, { placeHolder: 'SSH FS Configuration' });
    if (pick) func.call(manager, pick);
  }

  context.subscriptions.push(vscode.commands.registerCommand('sshfs.connect', () => pickAndClick(manager.commandConfigConnect, false)));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs.disconnect', () => pickAndClick(manager.commandConfigDisconnect, true)));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs.reconnect', () => pickAndClick(manager.commandConfigReconnect, true)));

  context.subscriptions.push(vscode.commands.registerCommand('sshfs-configs.disconnect', manager.commandConfigDisconnect, manager));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs-configs.reconnect', manager.commandConfigReconnect, manager));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs-configs.connect', manager.commandConfigConnect, manager));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs-configs.configure', manager.commandConfigure, manager));
  context.subscriptions.push(vscode.commands.registerCommand('sshfs-configs.delete', manager.commandConfigDelete, manager));

  vscode.window.createTreeView('sshfs-configs', { treeDataProvider: manager });
}