<?php

namespace App\Http\Controllers\Admin;

use App\Models\News;
use App\Models\User;
use App\Constants\Status;
use Illuminate\Http\Request;
use App\Models\NotificationLog;
use App\Rules\FileTypeValidate;
use Illuminate\Validation\Rule;
use App\Http\Controllers\Controller;
use App\Models\NotificationTemplate;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\Rules\Password;

class ManageUsersController extends Controller
{
    public function allUsers()
    {
        $pageTitle = 'All Staffs';
        $users = $this->userData();
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function activeUsers()
    {
        $pageTitle = 'Active Staffs';
        $users = $this->userData('active');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function bannedUsers()
    {
        $pageTitle = 'Banned Staffs';
        $users = $this->userData('banned');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function emailUnverifiedUsers()
    {
        $pageTitle = 'Email Unverified Staffs';
        $users = $this->userData('emailUnverified');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function emailVerifiedUsers()
    {
        $pageTitle = 'Email Verified Staffs';
        $users = $this->userData('emailVerified');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function mobileUnverifiedUsers()
    {
        $pageTitle = 'Mobile Unverified Staffs';
        $users = $this->userData('mobileUnverified');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    public function mobileVerifiedUsers()
    {
        $pageTitle = 'Mobile Verified Staffs';
        $users = $this->userData('mobileVerified');
        $countries = getCountryJson();
        return view('admin.users.list', compact('pageTitle', 'users', 'countries'));
    }

    protected function userData($scope = null)
    {
        if ($scope) {
            $users = User::$scope();
        } else {
            $users = User::query();
        }
        return $users->searchable(['username', 'email'])->withCount('news')->orderBy('id', 'desc')->paginate(getPaginate());
    }

    public function detail($id)
    {
        $user = User::withCount('news')->findOrFail($id);
        $pageTitle = 'Staff Detail - ' . $user->username;

        $widget['pending']  = News::where('user_id', $id)->pending()->count();
        $widget['approved'] = News::where('user_id', $id)->approved()->count();
        $widget['rejected'] = News::where('user_id', $id)->rejected()->count();
        $countries          = getCountryJson();

        return view('admin.users.detail', compact('pageTitle', 'user', 'countries', 'widget'));
    }

    public function update(Request $request, $id)
    {
        $user = User::findOrFail($id);
        $countryData  = getCountryJson();
        $countryArray = (array)$countryData;
        $countries    = implode(',', array_keys($countryArray));
        $countryCode  = $request->country;
        $country      = $countryData->$countryCode->country;
        $dialCode     = $countryData->$countryCode->dial_code;

        $request->validate([
            'firstname' => 'required|string|max:40',
            'lastname'  => 'required|string|max:40',
            'email'     => 'required|email|string|max:40|unique:users,email,' . $user->id,
            'mobile'    => 'required|string|max:40',
            'country'   => 'required|in:' . $countries,
        ]);

        $exists = User::where('mobile', $request->mobile)->where('dial_code', $dialCode)->where('id', '!=', $user->id)->exists();
        if ($exists) {
            $notify[] = ['error', 'The mobile number already exists.'];
            return back()->withNotify($notify);
        }

        $user->mobile       = $request->mobile;
        $user->firstname    = $request->firstname;
        $user->lastname     = $request->lastname;
        $user->display_name = $request->display_name;
        $user->fatherName   = $request->fatherName;
        $user->motherName   = $request->motherName;
        $user->nid          = $request->nid;
        $user->district     = $request->district;
        $user->upazila      = $request->upazila;
        $user->designation  = $request->designation;
        $user->auto_approval = $request->auto_approval ? Status::ENABLE : Status::DISABLE;
        $user->email        = $request->email;
        $user->address      = $request->address;
        $user->city         = $request->city;
        $user->state        = $request->state;
        $user->zip          = $request->zip;
        $user->country_name = @$country;
        $user->dial_code    = $dialCode;
        $user->country_code = $countryCode;
        $user->ev           = $request->ev ? Status::VERIFIED : Status::UNVERIFIED;
        $user->sv           = $request->sv ? Status::VERIFIED : Status::UNVERIFIED;
        $user->ts           = $request->ts ? Status::ENABLE : Status::DISABLE;
        $user->save();

        $notify[] = ['success', 'Staff details updated successfully'];
        return back()->withNotify($notify);
    }

    public function storeNewUser(Request $request)
    {
        $countryData = (array)getCountryJson();
        $countryCodes = implode(',', array_keys($countryData));
        $mobileCodes  = implode(',', array_column($countryData, 'dial_code'));
        $countries    = implode(',', array_column($countryData, 'country'));

        $passwordValidation = Password::min(5);

        $request->validate([
            'firstname'    => 'required',
            'lastname'     => 'required',
            'email'        => 'required|string|email|unique:users',
            'password'     => ['required', 'confirmed', $passwordValidation],
            'country_code' => 'required|in:' . $countryCodes,
            'country'      => 'required|in:' . $countries,
            'mobile_code'  => 'required|in:' . $mobileCodes,
            'username'     => 'required|unique:users|min:5',
            'mobile'       => ['required', 'regex:/^([0-9]*)$/', Rule::unique('users')->where('dial_code', $request->mobile_code)],
        ], [
            'firstname.required' => 'The first name field is required',
            'lastname.required' => 'The last name field is required'
        ]);

        if (preg_match("/[^a-z0-9_]/", trim($request->username))) {
            $notify[] = ['info', 'Username can contain only small letters, numbers and underscore.'];
            $notify[] = ['error', 'No special character, space or capital letters in username.'];
            return back()->withNotify($notify)->withInput($request->all());
        }

        $user = new User();
        $user->firstname    = $request->firstname;
        $user->lastname     = $request->lastname;
        $user->fatherName   = $request->fatherName;
        $user->motherName   = $request->motherName;
        $user->nid          = $request->nid;
        $user->district     = $request->district;
        $user->upazila      = $request->upazila;
        $user->designation  = $request->designation;
        $user->email        = $request->email;
        $user->password     = Hash::make($request->password);
        $user->username     = $request->username;
        $user->country_code = $request->country_code;
        $user->country_name = $request->country;
        $user->dial_code    = $request->mobile_code;
        $user->mobile       = $request->mobile;
        $user->ev           = gs('ev') ? Status::NO : Status::YES;
        $user->sv           = gs('sv') ? Status::NO : Status::YES;
        $user->ts           = Status::DISABLE;
        $user->tv           = Status::ENABLE;
        $user->save();

        $notify[] = ['success', 'Staff created successfully'];
        return back()->withNotify($notify);
    }

    public function login($id)
    {
        Auth::loginUsingId($id);
        return to_route('user.home');
    }

    public function status(Request $request, $id)
    {
        $user = User::findOrFail($id);
        if ($user->status == Status::USER_ACTIVE) {
            $request->validate([
                'reason' => 'required|string|max:255'
            ]);
            $user->status     = Status::USER_BAN;
            $user->ban_reason = $request->reason;
            $notify[]         = ['success', 'Staff banned successfully'];
        } else {
            $user->status     = Status::USER_ACTIVE;
            $user->ban_reason = null;
            $notify[]         = ['success', 'Staff unbanned successfully'];
        }
        $user->save();
        return back()->withNotify($notify);
    }

    public function showNotificationSingleForm($id)
    {
        $user = User::findOrFail($id);
        if (!gs('en') && !gs('sn') && !gs('pn')) {
            $notify[] = ['warning', 'Notification options are disabled currently'];
            return to_route('admin.users.detail', $user->id)->withNotify($notify);
        }
        $pageTitle = 'Send Notification to ' . $user->username;
        return view('admin.users.notification_single', compact('pageTitle', 'user'));
    }

    public function sendNotificationSingle(Request $request, $id)
    {
        $request->validate([
            'message' => 'required',
            'via'     => 'required|in:email,sms,push',
            'subject' => 'required_if:via,email,push',
            'image'   => ['nullable', 'image', new FileTypeValidate(['jpg', 'jpeg', 'png'])],
        ]);

        if (!gs('en') && !gs('sn') && !gs('pn')) {
            $notify[] = ['warning', 'Notification options are disabled currently'];
            return to_route('admin.dashboard')->withNotify($notify);
        }

        $imageUrl = null;
        if ($request->via == 'push' && $request->hasFile('image')) {
            $imageUrl = fileUploader($request->image, getFilePath('push'));
        }

        $template = NotificationTemplate::where('act', 'DEFAULT')->where($request->via . '_status', Status::ENABLE)->exists();
        if (!$template) {
            $notify[] = ['warning', 'Default notification template is not enabled'];
            return back()->withNotify($notify);
        }

        $user = User::findOrFail($id);
        notify($user, 'DEFAULT', [
            'subject' => $request->subject,
            'message' => $request->message,
        ], [$request->via], pushImage: $imageUrl);
        $notify[] = ['success', 'Notification sent successfully'];
        return back()->withNotify($notify);
    }

    public function showNotificationAllForm()
    {
        if (!gs('en') && !gs('sn') && !gs('pn')) {
            $notify[] = ['warning', 'Notification options are disabled currently'];
            return to_route('admin.dashboard')->withNotify($notify);
        }

        $notifyToUser = User::notifyToUser();
        $users        = User::active()->count();
        $pageTitle    = 'Notification to Verified Staffs';

        if (session()->has('SEND_NOTIFICATION') && !request()->email_sent) {
            session()->forget('SEND_NOTIFICATION');
        }

        return view('admin.users.notification_all', compact('pageTitle', 'users', 'notifyToUser'));
    }

    public function sendNotificationAll(Request $request)
    {
        $request->validate([
            'via'                          => 'required|in:email,sms,push',
            'message'                      => 'required',
            'subject'                      => 'required_if:via,email,push',
            'start'                        => 'required|integer|gte:1',
            'batch'                        => 'required|integer|gte:1',
            'being_sent_to'                => 'required',
            'cooling_time'                 => 'required|integer|gte:1',
            'number_of_top_deposited_user' => 'required_if:being_sent_to,topDepositedUsers|integer|gte:0',
            'number_of_days'               => 'required_if:being_sent_to,notLoginUsers|integer|gte:0',
            'image'                        => ["nullable", 'image', new FileTypeValidate(['jpg', 'jpeg', 'png'])],
        ], [
            'number_of_days.required_if'               => "Number of days field is required",
            'number_of_top_deposited_user.required_if' => "Number of top deposited user field is required",
        ]);

        if (!gs('en') && !gs('sn') && !gs('pn')) {
            $notify[] = ['warning', 'Notification options are disabled currently'];
            return to_route('admin.dashboard')->withNotify($notify);
        }

        $template = NotificationTemplate::where('act', 'DEFAULT')->where($request->via . '_status', Status::ENABLE)->exists();
        if (!$template) {
            $notify[] = ['warning', 'Default notification template is not enabled'];
            return back()->withNotify($notify);
        }

        if ($request->being_sent_to == 'selectedUsers') {
            if (session()->has("SEND_NOTIFICATION")) {
                $request->merge(['user' => session()->get('SEND_NOTIFICATION')['user']]);
            } else {
                if (!$request->user || !is_array($request->user) || empty($request->user)) {
                    $notify[] = ['error', "Ensure that the user field is populated when sending an email to the designated user group"];
                    return back()->withNotify($notify);
                }
            }
        }

        $scope          = $request->being_sent_to;
        $userQuery      = User::oldest()->active()->$scope();

        if (session()->has("SEND_NOTIFICATION")) {
            $totalUserCount = session('SEND_NOTIFICATION')['total_user'];
        } else {
            $totalUserCount = (clone $userQuery)->count() - ($request->start - 1);
        }

        if ($totalUserCount <= 0) {
            $notify[] = ['error', "Notification recipients were not found among the selected user base."];
            return back()->withNotify($notify);
        }

        $imageUrl = null;

        if ($request->via == 'push' && $request->hasFile('image')) {
            if (session()->has("SEND_NOTIFICATION")) {
                $request->merge(['image' => session()->get('SEND_NOTIFICATION')['image']]);
            }
            if ($request->hasFile("image")) {
                $imageUrl = fileUploader($request->image, getFilePath('push'));
            }
        }

        $users = (clone $userQuery)->skip($request->start - 1)->limit($request->batch)->get();

        foreach ($users as $user) {
            notify($user, 'DEFAULT', [
                'subject' => $request->subject,
                'message' => $request->message,
            ], [$request->via], pushImage: $imageUrl);
        }

        return $this->sessionForNotification($totalUserCount, $request);
    }

    private function sessionForNotification($totalUserCount, $request)
    {
        if (session()->has('SEND_NOTIFICATION')) {
            $sessionData                = session("SEND_NOTIFICATION");
            $sessionData['total_sent'] += $sessionData['batch'];
        } else {
            $sessionData               = $request->except('_token');
            $sessionData['total_sent'] = $request->batch;
            $sessionData['total_user'] = $totalUserCount;
        }

        $sessionData['start'] = $sessionData['total_sent'] + 1;

        if ($sessionData['total_sent'] >= $totalUserCount) {
            session()->forget("SEND_NOTIFICATION");
            $message = ucfirst($request->via) . " notifications were sent successfully";
            $url     = route("admin.users.notification.all");
        } else {
            session()->put('SEND_NOTIFICATION', $sessionData);
            $message = $sessionData['total_sent'] . " " . $sessionData['via'] . "  notifications were sent successfully";
            $url     = route("admin.users.notification.all") . "?email_sent=yes";
        }
        $notify[] = ['success', $message];
        return redirect($url)->withNotify($notify);
    }

    public function countBySegment($methodName)
    {
        return User::active()->$methodName()->count();
    }

    public function list()
    {
        $query = User::active();

        if (request()->search) {
            $query->where(function ($q) {
                $q->where('email', 'like', '%' . request()->search . '%')->orWhere('username', 'like', '%' . request()->search . '%');
            });
        }
        $users = $query->orderBy('id', 'desc')->paginate(getPaginate());
        return response()->json([
            'success' => true,
            'users'   => $users,
            'more'    => $users->hasMorePages()
        ]);
    }

    public function notificationLog($id)
    {
        $user = User::findOrFail($id);
        $pageTitle = 'Notifications Sent to ' . $user->username;
        $logs = NotificationLog::where('user_id', $id)->with('user')->orderBy('id', 'desc')->paginate(getPaginate());
        return view('admin.reports.notification_history', compact('pageTitle', 'logs', 'user'));
    }
}