<?php

namespace Webkul\User\Http\Controllers;

use Illuminate\Support\Facades\Event;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Str;
use Webkul\Admin\DataGrids\UserDataGrid;
use Webkul\User\Http\Requests\UserForm;
use Webkul\User\Repositories\AdminRepository;
use Webkul\User\Repositories\RoleRepository;

class UserController extends Controller
{
    /**
     * Contains route related configuration.
     *
     * @var array
     */
    protected $_config;

    /**
     * Admin repository instance.
     *
     * @var \Webkul\User\Repositories\AdminRepository
     */
    protected $adminRepository;

    /**
     * Role repository instance.
     *
     * @var \Webkul\User\Repositories\RoleRepository
     */
    protected $roleRepository;

    /**
     * Create a new controller instance.
     *
     * @param  \Webkul\User\Repositories\AdminRepository  $adminRepository
     * @param  \Webkul\User\Repositories\RoleRepository  $roleRepository
     * @return void
     */
    public function __construct(
        AdminRepository $adminRepository,
        RoleRepository $roleRepository
    ) {
        $this->adminRepository = $adminRepository;

        $this->roleRepository = $roleRepository;

        $this->_config = request('_config');

        $this->middleware('guest', ['except' => 'destroy']);
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\View\View
     */
    public function index()
    {
        if (request()->ajax()) {
            return app(UserDataGrid::class)->toJson();
        }

        return view($this->_config['view']);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\View\View
     */
    public function create()
    {
        $roles = $this->roleRepository->all();

        return view($this->_config['view'], compact('roles'));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Webkul\User\Http\Requests\UserForm  $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store(UserForm $request)
    {
        $data = $request->all();

        if (isset($data['password']) && $data['password']) {
            $data['password'] = bcrypt($data['password']);
            $data['api_token'] = Str::random(80);
        }

        $this->adminRepository->create($data);

        session()->flash('success', trans('admin::app.response.create-success', ['name' => 'User']));

        return redirect()->route($this->_config['redirect']);
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\View\View
     */
    public function edit($id)
    {
        $user = $this->adminRepository->findOrFail($id);

        $roles = $this->roleRepository->all();

        return view($this->_config['view'], compact('user', 'roles'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Webkul\User\Http\Requests\UserForm  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(UserForm $request, $id)
    {
        $data = $this->prepareUserData($request, $id);

        if ($data instanceof \Illuminate\Http\RedirectResponse) {
            return $data;
        }

        $this->adminRepository->update($data, $id);

        session()->flash('success', trans('admin::app.response.update-success', ['name' => 'User']));

        return redirect()->route($this->_config['redirect']);
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response|\Illuminate\View\View
     */
    public function destroy($id)
    {
        $this->adminRepository->findOrFail($id);

        if ($this->adminRepository->count() == 1) {
            session()->flash('error', trans('admin::app.response.last-delete-error', ['name' => 'Admin']));
        } else {
            if (auth()->guard('admin')->user()->id == $id) {
                return response()->json([
                    'redirect' => route('super.users.confirm', ['id' => $id]),
                ]);
            }

            try {
                $this->adminRepository->delete($id);

                session()->flash('success', trans('admin::app.response.delete-success', ['name' => 'Admin']));

                return response()->json(['message' => true], 200);
            } catch (\Exception $e) {
                session()->flash('error', trans('admin::app.response.delete-failed', ['name' => 'Admin']));
            }
        }

        return response()->json(['message' => false], 400);
    }

    /**
     * Show the form for confirming the user password.
     *
     * @param  int  $id
     * @return \Illuminate\View\View
     */
    public function confirm($id)
    {
        $user = $this->adminRepository->findOrFail($id);

        return view($this->_config['view'], compact('user'));
    }

    /**
     * Destroy current after confirming.
     *
     * @return \Illuminate\Http\Response
     */
    public function destroySelf()
    {
        $password = request()->input('password');

        if (Hash::check($password, auth()->guard('admin')->user()->password)) {
            if ($this->adminRepository->count() == 1) {
                session()->flash('error', trans('admin::app.users.users.delete-last'));
            } else {
                $id = auth()->guard('admin')->user()->id;

                Event::dispatch('user.admin.delete.before', $id);

                $this->adminRepository->delete($id);

                Event::dispatch('user.admin.delete.after', $id);

                session()->flash('success', trans('admin::app.users.users.delete-success'));

                return redirect()->route('admin.session.create');
            }
        } else {
            session()->flash('warning', trans('admin::app.users.users.incorrect-password'));

            return redirect()->route($this->_config['redirect']);
        }
    }

    /**
     * Prepare user data.
     *
     * @param  \Webkul\User\Http\Requests\UserForm  $request
     * @param  int  $id
     * @return array|\Illuminate\Http\RedirectResponse
     */
    private function prepareUserData(UserForm $request, $id)
    {
        $data = $request->validated();

        $user = $this->adminRepository->find($id);

        /**
         * Password check.
         */
        if (! $data['password']) {
            unset($data['password']);
        } else {
            $data['password'] = bcrypt($data['password']);
        }

        /**
         * Is user with `permission_type` all changed status.
         */
        $data['status'] = isset($data['status']) ? 1 : 0;

        $isStatusChangedToInactive = (int) $data['status'] === 0 && (int) $user->status === 1;

        if (
            $isStatusChangedToInactive
            && (
                auth()->guard('admin')->user()->id === (int) $id
                || $this->adminRepository->countAdminsWithAllAccessAndActiveStatus() === 1
            )
        ) {
            return $this->cannotChangeRedirectResponse('status');
        }

        /**
         * Is user with `permission_type` all role changed.
         */
        $isRoleChanged = $user->role->permission_type === 'all'
        && isset($data['role_id'])
        && (int) $data['role_id'] !== $user->role_id;

        if ($isRoleChanged && $this->adminRepository->countAdminsWithAllAccess() === 1) {
            return $this->cannotChangeRedirectResponse('role');
        }

        return $data;
    }

    /**
     * Cannot change redirect response.
     *
     * @param  string $columnName
     * @return \Illuminate\Http\RedirectResponse
     */
    private function cannotChangeRedirectResponse(string $columnName): \Illuminate\Http\RedirectResponse
    {
        session()->flash('error', trans('admin::app.response.cannot-change', [
            'name' => $columnName,
        ]));

        return redirect()->route($this->_config['redirect']);
    }
}