<?php

namespace App\Http\Controllers;

use App\Helpers\Helper;
use App\Models\Group;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

/**
 * This controller handles all actions related to User Groups for
 * the Snipe-IT Asset Management application.
 *
 * @version    v1.0
 */
class GroupsController extends Controller
{
    /**
     * Returns a view that invokes the ajax tables which actually contains
     * the content for the user group listing, which is generated in getDatatable.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::getDatatable() method that generates the JSON response
     * @since [v1.0]
     * @return \Illuminate\Contracts\View\View
     */
    public function index()
    {
        // Show the page
        return view('groups/index');
    }

    /**
     * Returns a view that displays a form to create a new User Group.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::postCreate()
     * @since [v1.0]
     * @return \Illuminate\Contracts\View\View
     */
    public function create(Request $request)
    {
        $group = new Group;
        // Get all the available permissions
        $permissions = config('permissions');
        $groupPermissions = Helper::selectedPermissionsArray($permissions, $permissions);
        $selectedPermissions = $request->old('permissions', $groupPermissions);

        // Show the page
        return view('groups/edit', compact('permissions', 'selectedPermissions', 'groupPermissions'))->with('group', $group);
    }

    /**
     * Validates and stores the new User Group data.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::getCreate()
     * @since [v1.0]
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store(Request $request)
    {
        // create a new group instance
        $group = new Group();
        $group->name = $request->input('name');
        $group->permissions = json_encode($request->input('permission'));
        $group->created_by = auth()->id();

        if ($group->save()) {
            return redirect()->route('groups.index')->with('success', trans('admin/groups/message.success.create'));
        }

        return redirect()->back()->withInput()->withErrors($group->getErrors());
    }

    /**
     * Returns a view that presents a form to edit a User Group.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::postEdit()
     * @param int $id
     * @since [v1.0]
     * @return \Illuminate\Contracts\View\View | \Illuminate\Http\RedirectResponse
     */
    public function edit($id)
    {
        $group = Group::find($id);

        if ($group) {
            $permissions = config('permissions');
            $groupPermissions = $group->decodePermissions();
            $selected_array = Helper::selectedPermissionsArray($permissions, $groupPermissions);

            return view('groups.edit', compact('group', 'permissions', 'selected_array', 'groupPermissions'));
        }

        return redirect()->route('groups.index')->with('error', trans('admin/groups/message.group_not_found', ['id' => $id]));
    }

    /**
     * Validates and stores the updated User Group data.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::getEdit()
     * @param int $id
     * @since [v1.0]
     * @return \Illuminate\Http\RedirectResponse
     */
    public function update(Request $request, $id = null)
    {
        if (! $group = Group::find($id)) {
            return redirect()->route('groups.index')->with('error', trans('admin/groups/message.group_not_found', ['id' => $id]));
        }
        $group->name = $request->input('name');
        $group->permissions = json_encode($request->input('permission'));

        if (! config('app.lock_passwords')) {
            if ($group->save()) {
                return redirect()->route('groups.index')->with('success', trans('admin/groups/message.success.update'));
            }

            return redirect()->back()->withInput()->withErrors($group->getErrors());
        }

        return redirect()->route('groups.index')->with('error', trans('general.feature_disabled'));
    }

    /**
     * Validates and deletes the User Group.
     *
     * @author [A. Gianotto] [<snipe@snipe.net]
     * @see GroupsController::getEdit()
     * @param int $id
     * @since [v1.0]
     * @return \Illuminate\Http\RedirectResponse
     * @throws \Exception
     */
    public function destroy($id)
    {
        if (! config('app.lock_passwords')) {
            if (! $group = Group::find($id)) {
                return redirect()->route('groups.index')->with('error', trans('admin/groups/message.group_not_found', ['id' => $id]));
            }
            $group->delete();
            return redirect()->route('groups.index')->with('success', trans('admin/groups/message.success.delete'));
        }

        return redirect()->route('groups.index')->with('error', trans('general.feature_disabled'));
    }

    /**
     * Returns a view that invokes the ajax tables which actually contains
     * the content for the group detail page.
     *
     * @author [A. Gianotto] [<snipe@snipe.net>]
     * @param $id
     * @return \Illuminate\Contracts\View\View | \Illuminate\Http\RedirectResponse
     * @since [v4.0.11]
     */
    public function show($id)
    {
        $group = Group::find($id);

        if ($group) {
            return view('groups/view', compact('group'));
        }

        return redirect()->route('groups.index')->with('error', trans('admin/groups/message.group_not_found', ['id' => $id]));
    }
}