<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Worker;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Str;
use Illuminate\Validation\Rule;

class WorkerAuthController extends Controller
{
    /**
     * Get system configuration and supported languages for worker onboarding.
     * Aligns with Step 2 "Select Language (HI / SW / TL / TA)".
     */
    public function config()
    {
        return response()->json([
            'success' => true,
            'languages' => [
                ['code' => 'HI', 'name' => 'Hindi (हिन्दी)'],
                ['code' => 'SW', 'name' => 'Swahili (Kiswahili)'],
                ['code' => 'TL', 'name' => 'Tagalog (Wikang Tagalog)'],
                ['code' => 'TA', 'name' => 'Tamil (தமிழ்)'],
            ]
        ], 200);
    }

    /**
     * Get all master skills for worker registration/onboarding.
     */
    public function skills()
    {
        $skills = \App\Models\Skill::all()->map(function ($skill) {
            return [
                'id' => $skill->id,
                'name' => $skill->name,
                'image_url' => $skill->image_path ? asset('storage/' . $skill->image_path) : null,
            ];
        });

        return response()->json([
            'success' => true,
            'skills' => $skills
        ], 200);
    }

    /**
     * Step 1: Send OTP to worker's mobile number or email.
     * Accepts: phone OR email (one is required).
     */
    public function sendOtp(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone' => 'required_without:email|nullable|string|max:50|unique:workers,phone',
            'email' => 'required_without:phone|nullable|email|max:255|unique:workers,email',
        ], [
            'phone.required_without' => 'Please provide a mobile number or email address.',
            'phone.unique' => 'This mobile number is already registered.',
            'email.required_without' => 'Please provide a mobile number or email address.',
            'email.unique' => 'This email address is already registered.',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'message' => 'Validation error.',
                'errors' => $validator->errors()
            ], 422);
        }

        // Determine identifier (phone takes priority)
        $identifier = $request->phone ?? $request->email;
        $isPhone    = !empty($request->phone);

        // Generate OTP (always 111111 in local/dev, random in production)
        $otp = app()->environment('production') ? strval(rand(100000, 999999)) : '111111';

        // Cache OTP for 10 minutes
        Cache::put('worker_otp_' . $identifier, [
            'code'       => $otp,
            'expires_at' => now()->addMinutes(10)->timestamp,
        ], 600);

        // Send OTP via email if email provided (phone SMS would be handled by SMS gateway)
        if (!$isPhone && $request->email) {
            try {
                Mail::raw("Your Migrant Worker verification code is: {$otp}\n\nThis code expires in 10 minutes.", function ($m) use ($request, $otp) {
                    $m->to($request->email)
                      ->subject('Your Migrant Worker Verification Code');
                });
            } catch (\Exception $mailEx) {
                logger()->error('Worker OTP Mail Failure: ' . $mailEx->getMessage());
            }
        }

        return response()->json([
            'success'    => true,
            'message'    => $isPhone
                ? 'OTP sent to your mobile number.'
                : 'OTP sent to your email address.',
            'identifier' => $identifier,
            'otp'        => app()->environment('production') ? null : $otp, // Return OTP in response in non-prod for testing convenience
        ], 200);
    }

    /**
     * Step 2: Verify OTP sent to mobile/email.
     * Accepts: phone OR email, otp.
     */
    public function verifyOtp(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone'  => 'required_without:email|nullable|string|max:50',
            'email'  => 'required_without:phone|nullable|email|max:255',
            'otp'    => 'required|string|size:6',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'errors'  => $validator->errors()
            ], 422);
        }

        $identifier = $request->phone ?? $request->email;
        $cachedData = Cache::get('worker_otp_' . $identifier);

        if (!$cachedData || !isset($cachedData['code']) || !isset($cachedData['expires_at'])) {
            return response()->json([
                'success' => false,
                'message' => 'Invalid or expired verification code.'
            ], 400);
        }

        // Handle any dirty/legacy cache objects gracefully
        if (is_object($cachedData['expires_at']) || $cachedData['expires_at'] instanceof \__PHP_Incomplete_Class) {
            Cache::forget('worker_otp_' . $identifier);
            return response()->json([
                'success' => false,
                'message' => 'Session expired. Please request a new verification code.'
            ], 400);
        }

        if ($cachedData['code'] !== $request->otp || now()->timestamp > $cachedData['expires_at']) {
            return response()->json([
                'success' => false,
                'message' => 'Invalid or expired verification code.'
            ], 400);
        }

        // Mark OTP as verified in cache (used as gate for profile setup step)
        Cache::put('worker_otp_verified_' . $identifier, true, 3600); // 1 hour grace
        Cache::forget('worker_otp_' . $identifier);

        return response()->json([
            'success'    => true,
            'message'    => 'Mobile number verified successfully. Please complete your profile.',
            'identifier' => $identifier,
        ], 200);
    }

    /**
     * Step 3: Complete basic profile setup after OTP verification.
     * Accepts: phone OR email, name, nationality, skills (array of skill IDs), language.
     */
    public function setupProfile(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone'              => 'required_without:email|nullable|string|max:50',
            'email'              => 'required_without:phone|nullable|email|max:255',
            'name'               => 'required|string|max:255',
            'nationality'        => 'required|string|max:100',
            'language'           => 'nullable|string',
            'gender'             => 'nullable|string|in:male,female,other',
            'live_in_out'        => 'nullable|string|in:live_in,live_out',
            'preferred_location' => 'nullable|string|max:255',
            'main_profession'    => 'nullable|string|max:100',
            'skills'             => 'nullable|array',
            'skills.*'           => 'integer|exists:skills,id',
            'fcm_token'          => 'nullable|string|max:255',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'errors'  => $validator->errors()
            ], 422);
        }

        $identifier = $request->phone ?? $request->email;

        // Ensure OTP was verified in this session
        if (!Cache::get('worker_otp_verified_' . $identifier)) {
            return response()->json([
                'success' => false,
                'message' => 'OTP verification is required before profile setup.'
            ], 403);
        }

        // Check if already registered
        if ($request->phone && Worker::where('phone', $request->phone)->exists()) {
            return response()->json([
                'success' => false,
                'message' => 'This mobile number is already registered.'
            ], 409);
        }
        if ($request->email && Worker::where('email', $request->email)->exists()) {
            return response()->json([
                'success' => false,
                'message' => 'This email address is already registered.'
            ], 409);
        }

        try {
            // Build email for workers who registered by phone
            $email = $request->email;
            if (!$email && $request->phone) {
                $phoneClean = preg_replace('/[^0-9]/', '', $request->phone);
                $email = "worker.{$phoneClean}@migrant.ae";
                if (Worker::where('email', $email)->exists()) {
                    $email = "worker.{$phoneClean}." . rand(10, 99) . "@migrant.ae";
                }
            }

            $apiToken = Str::random(80);

            $worker = DB::transaction(function () use ($request, $email, $apiToken) {
                $worker = Worker::create([
                    'name'               => $request->name,
                    'email'              => $email,
                    'phone'              => $request->phone ?? null,
                    'language'           => $request->language ?? 'HI', // Default to Hindi if not selected
                    'password'           => Hash::make(Str::random(16)), // No password at this stage
                    'nationality'        => $request->nationality,
                    'gender'             => $request->gender,
                    'live_in_out'        => $request->live_in_out,
                    'preferred_location' => $request->preferred_location,
                    'main_profession'    => $request->main_profession,
                    'age'                => '18-25',   // Default — updated later in full profile
                    'salary'             => 1500, // Default AED — updated later
                    'availability'       => 'Immediate',
                    'experience'         => 'Not Specified',
                    'religion'           => 'Not Specified',
                    'bio'                => 'New worker on Migrant platform.',
                    'verified'           => false,
                    'status'             => 'active',
                    'api_token'          => $apiToken,
                    'fcm_token'          => $request->fcm_token,
                ]);

                // Sync skills if provided
                if (!empty($request->skills)) {
                    $worker->skills()->sync($request->skills);
                }

                return $worker;
            });

            // Clear the OTP verification gate
            Cache::forget('worker_otp_verified_' . $identifier);

            $worker->load(['skills', 'documents', 'reviews.employer.employerProfile', 'employerReviews.employer.employerProfile']);

            return response()->json([
                'success' => true,
                'message' => 'Registration complete! Welcome to Migrant.',
                'data'    => [
                    'worker' => $worker,
                    'token'  => $apiToken,
                ]
            ], 201);

        } catch (\Exception $e) {
            logger()->error('Worker Profile Setup Failure: ' . $e->getMessage());
            return response()->json([
                'success' => false,
                'message' => 'Registration failed. Please try again.',
                'error'   => app()->environment('local', 'testing') ? $e->getMessage() : 'Internal Server Error'
            ], 500);
        }
    }

        /**
     * Unified registration — supports direct JSON payloads for passport and visa.
     */
    public function register(Request $request)
    {
        $data = $request->all();
        if (isset($data['passport']) && is_string($data['passport'])) {
            $decoded = json_decode($data['passport'], true);
            if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
                $data['passport'] = $decoded;
            }
        }
        if (isset($data['visa']) && is_string($data['visa'])) {
            $decoded = json_decode($data['visa'], true);
            if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
                $data['visa'] = $decoded;
            }
        }
        $request->merge($data);

        $validator = Validator::make($request->all(), [
            'name'               => 'required|string|max:255',
            'phone'              => 'required|string|max:50|unique:workers,phone',
            'salary'             => 'required|numeric|min:0',
            'password'           => 'required|string|min:6',
            'skills'             => 'nullable',
            'language'           => 'nullable|string',
            'nationality'        => 'nullable|string|max:100',
            'age'                => [
                'nullable',
                function ($attribute, $value, $fail) {
                    if (is_numeric($value)) {
                        $intValue = (int)$value;
                        if ($intValue < 18 || $intValue > 100) {
                            $fail('The age must be between 18 and 100.');
                        }
                    } else {
                        if (!in_array($value, ['18-25', '26-35', '36-45', '46-55', '56-60'])) {
                            $fail('The age must be a valid number or one of the ranges: 18-25, 26-35, 36-45, 46-55, 56-60.');
                        }
                    }
                }
            ],
            'experience'         => 'nullable|string|max:100',
            'in_country'         => 'nullable',
            'visa_status'        => 'nullable|string',
            'preferred_job_type' => 'nullable|string|max:100',
            'main_profession'    => 'nullable|string|max:100',
            'gender'             => 'nullable|string|in:male,female,other',
            'live_in_out'        => 'nullable|string|in:live_in,live_out',
            'preferred_location' => 'nullable|string|max:255',
            'fcm_token'          => 'nullable|string|max:255',
            'passport'           => 'nullable|array',
            'passport.passport_number' => [
                'nullable',
                'string',
                Rule::unique('worker_documents', 'number')->where(function ($query) {
                    return $query->where('type', 'passport');
                }),
            ],
            'passport.document_type'   => 'nullable|string|max:10',
            'passport.issuing_country' => 'nullable|string|max:10',
            'passport.surname'         => 'nullable|string|max:255',
            'passport.given_names'     => 'nullable|string|max:255',
            'passport.nationality'     => 'nullable|string|max:100',
            'passport.date_of_birth'   => 'nullable|string',
            'passport.date_of_expiry'  => 'nullable|string',
            'passport.place_of_birth'  => 'nullable|string|max:255',
            'passport.authority'       => 'nullable|string|max:255',
            'passport.sex'             => 'nullable|string|max:10',
            'passport.date_of_issue'   => 'nullable|string',
            'passport.ocr_accuracy'    => 'nullable|numeric',
            'visa'                     => 'nullable|array',
            'visa.document_type'       => 'nullable|string|max:100',
            'visa.country'             => 'nullable|string|max:100',
            'visa.visa_type'           => 'nullable|string|max:100',
            'visa.entry_permit_no'     => 'nullable|string|max:100',
            'visa.issue_date'          => 'nullable|string',
            'visa.valid_until'         => 'nullable|string',
            'visa.uid_no'              => 'nullable|string|max:100',
            'visa.full_name'           => 'nullable|string|max:255',
            'visa.nationality'         => 'nullable|string|max:100',
            'visa.place_of_birth'      => 'nullable|string|max:255',
            'visa.date_of_birth'       => 'nullable|string',
            'visa.passport_no'         => 'nullable|string|max:100',
            'visa.profession'          => 'nullable|string|max:255',
            'visa.sponsor_name'        => 'nullable|string|max:255',
            'visa.ocr_accuracy'        => 'nullable|numeric',
        ], [
            'phone.unique' => 'This mobile number is already registered.',
            'passport.passport_number.unique' => 'This passport number is already registered.',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'message' => 'Validation error.',
                'errors'  => $validator->errors()
            ], 422);
        }

        try {
            $phoneClean = preg_replace('/[^0-9]/', '', $request->phone);
            $email = "worker.{$phoneClean}@migrant.ae";
            if (Worker::where('email', $email)->exists()) {
                $email = "worker.{$phoneClean}." . rand(10, 99) . "@migrant.ae";
            }

            $skillsArray = [];
            if ($request->has('skills')) {
                $skillsInput = $request->skills;
                if (is_array($skillsInput)) {
                    $skillsArray = $skillsInput;
                } elseif (is_string($skillsInput)) {
                    $decoded = json_decode($skillsInput, true);
                    $skillsArray = (json_last_error() === JSON_ERROR_NONE && is_array($decoded))
                        ? $decoded
                        : array_filter(array_map('trim', explode(',', $skillsInput)));
                }
            }

            $inCountry = filter_var($request->input('in_country', true), FILTER_VALIDATE_BOOLEAN);
            $apiToken  = Str::random(80);

            $result = DB::transaction(function () use ($request, $email, $skillsArray, $apiToken, $inCountry) {
                // Initialize fields
                $name = $request->name;
                $nationality = $request->nationality ?? 'Not Specified';
                $age = $request->age ?? '18-25';
                $visaStatus = $inCountry ? $request->visa_status : null;

                $passportDataInput = $request->input('passport');
                $visaDataInput = $request->input('visa');

                // Process passport if provided
                if ($passportDataInput) {
                    $givenNames = trim($passportDataInput['given_names'] ?? '');
                    $surname = trim($passportDataInput['surname'] ?? '');
                    $fullName = trim($givenNames . ' ' . $surname);
                    if (empty($fullName)) {
                        $fullName = $passportDataInput['name'] ?? null;
                    }
                    if ($fullName) {
                        $name = $fullName;
                    }

                    if (!empty($passportDataInput['nationality'])) {
                        $codeUpper = strtoupper($passportDataInput['nationality']);
                        $matchedNationality = \App\Models\Nationality::where('iso3', $codeUpper)
                            ->orWhere('code', $codeUpper)
                            ->first();
                        $nationality = $matchedNationality ? $matchedNationality->name : $passportDataInput['nationality'];
                    }

                    if (!empty($passportDataInput['date_of_birth'])) {
                        try {
                            $dob = new \DateTime($this->normaliseDateForController($passportDataInput['date_of_birth']));
                            $ageVal = (new \DateTime())->diff($dob)->y;
                            if ($ageVal >= 18 && $ageVal <= 25) {
                                $age = '18-25';
                            } elseif ($ageVal >= 26 && $ageVal <= 35) {
                                $age = '26-35';
                            } elseif ($ageVal >= 36 && $ageVal <= 45) {
                                $age = '36-45';
                            } elseif ($ageVal >= 46 && $ageVal <= 55) {
                                $age = '46-55';
                            } elseif ($ageVal >= 56 && $ageVal <= 60) {
                                $age = '56-60';
                            } else {
                                $age = $ageVal < 18 ? '18-25' : '56-60';
                            }
                        } catch (\Exception $dateEx) {
                            logger()->error('Passport DOB parse error in register: ' . $dateEx->getMessage());
                        }
                    }
                }

                // Process visa if provided
                if ($visaDataInput) {
                    if (!empty($visaDataInput['profession'])) {
                        if (empty($visaStatus)) {
                            $visaStatus = $visaDataInput['profession'];
                        }
                    }
                }

                $worker = Worker::create([
                    'name'               => $name,
                    'email'              => $email,
                    'phone'              => $request->phone,
                    'language'           => $request->language ?? 'HI',
                    'password'           => Hash::make($request->password),
                    'nationality'        => $nationality,
                    'gender'             => $request->gender,
                    'live_in_out'        => $request->live_in_out,
                    'preferred_location' => $request->preferred_location,
                    'main_profession'    => $request->main_profession,
                    'age'                => $age,
                    'salary'             => $request->salary,
                    'availability'       => 'Immediate',
                    'experience'         => $request->experience ?? 'Not Specified',
                    'religion'           => 'Not Specified',
                    'bio'                => 'Hardworking and reliable General Helper available for immediate hire.',
                    'verified'           => ($passportDataInput || $visaDataInput) ? true : false,
                    'status'             => 'active',
                    'api_token'          => $apiToken,
                    'in_country'         => $inCountry,
                    'visa_status'        => $visaStatus,
                    'preferred_job_type' => $request->preferred_job_type,
                    'fcm_token'          => $request->fcm_token,
                ]);

                if (!empty($skillsArray)) {
                    $validSkillIds = DB::table('skills')->whereIn('id', $skillsArray)->pluck('id')->toArray();
                    if (!empty($validSkillIds)) {
                        $worker->skills()->sync($validSkillIds);
                    }
                }

                // Create passport document if provided
                if ($passportDataInput) {
                    $passportNum = $passportDataInput['passport_number'] ?? ('P' . rand(1000000, 9999999));
                    $expiryDate  = $passportDataInput['date_of_expiry'] ?? null;
                    $issueDate   = $passportDataInput['date_of_issue'] ?? null;

                    $expiryDateFormatted = $expiryDate ? $this->normaliseDateForController($expiryDate) : now()->addYears(8)->toDateString();
                    $issueDateFormatted  = $issueDate ? $this->normaliseDateForController($issueDate) : now()->subYears(3)->toDateString();

                    $worker->documents()->create([
                        'type'         => 'passport',
                        'number'       => $passportNum,
                        'issue_date'   => $issueDateFormatted,
                        'expiry_date'  => $expiryDateFormatted,
                        'ocr_accuracy' => isset($passportDataInput['ocr_accuracy']) ? (float)$passportDataInput['ocr_accuracy'] : 99.0,
                        'file_path'    => null,
                        'ocr_data'     => $passportDataInput,
                    ]);
                }

                // Create visa document if provided
                if ($visaDataInput) {
                    $cleanedVisaOcr = $this->cleanVisaData($visaDataInput);
                    $visaNum    = $cleanedVisaOcr['entry_permit_no'] ?: ('V' . rand(1000000, 9999999));
                    $expiryDate = $cleanedVisaOcr['valid_until'] ?? null;
                    $issueDate  = $cleanedVisaOcr['issue_date'] ?? null;

                    $expiryDateFormatted = $expiryDate ? $this->normaliseDateForController($expiryDate) : now()->addYears(2)->toDateString();
                    $issueDateFormatted  = $issueDate ? $this->normaliseDateForController($issueDate) : now()->subYears(2)->toDateString();

                    $worker->documents()->create([
                        'type'         => 'visa',
                        'number'       => $visaNum,
                        'issue_date'   => $issueDateFormatted,
                        'expiry_date'  => $expiryDateFormatted,
                        'ocr_accuracy' => isset($visaDataInput['ocr_accuracy']) ? (float)$visaDataInput['ocr_accuracy'] : 99.0,
                        'file_path'    => null,
                        'ocr_data'     => $cleanedVisaOcr,
                    ]);
                }

                return $worker;
            });

            $result->load(['skills', 'documents', 'reviews.employer.employerProfile', 'employerReviews.employer.employerProfile']);

            return response()->json([
                'success' => true,
                'message' => 'Worker registered successfully.',
                'data'    => ['worker' => $result, 'token' => $apiToken]
            ], 201);

        } catch (\Exception $e) {
            logger()->error('Worker Registration Failure: ' . $e->getMessage());
            return response()->json([
                'success' => false,
                'message' => 'Registration failed.',
                'error'   => app()->environment('local', 'testing') ? $e->getMessage() : 'Internal Server Error'
            ], 500);
        }
    }

    /**
     * Authenticate a worker and return a secure Bearer token.
     */public function login(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone'    => 'required_without:email|nullable|string',
            'email'    => 'required_without:phone|nullable|email',
            'password' => 'required|string',
            'fcm_token' => 'nullable|string|max:255',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'message' => 'Validation error.',
                'errors'  => $validator->errors()
            ], 422);
        }

        try {
            $worker = $request->phone
                ? Worker::where('phone', $request->phone)->first()
                : Worker::where('email', $request->email)->first();

            if (!$worker || !Hash::check($request->password, $worker->password)) {
                return response()->json([
                    'success' => false,
                    'message' => 'Invalid credentials.'
                ], 401);
            }

            $apiToken = Str::random(80);
            $updateData = ['api_token' => $apiToken];
            if ($request->has('fcm_token')) {
                $updateData['fcm_token'] = $request->fcm_token;
            }
            $worker->update($updateData);

            if ($request->filled('fcm_token')) {
                \App\Services\FCMService::sendPushNotification(
                    $request->fcm_token,
                    'Successful Login',
                    'Worker logged in successfully.'
                );
            }

            return response()->json([
                'success' => true,
                'message' => 'Worker logged in successfully.',
                'data'    => [
                    'worker' => $worker->load(['skills', 'documents', 'reviews.employer.employerProfile', 'employerReviews.employer.employerProfile']),
                    'token'  => $apiToken
                ]
            ], 200);

        } catch (\Exception $e) {
            logger()->error('Worker Login Failure: ' . $e->getMessage());
            return response()->json([
                'success' => false,
                'message' => 'An error occurred during login. Please try again.',
                'error'   => app()->environment('local') ? $e->getMessage() : 'Internal Server Error'
            ], 500);
        }
    }

    /**
     * Get list of nationalities translated to requested language.
     * Supports en, hindi (hi), sawahi (sw), taglo (tl), tamil (ta).
     */
    public function nationalities(Request $request)
    {
        $lang = strtolower($request->input('lang') ?? $request->header('Accept-Language') ?? 'en');
        if (str_contains($lang, ',')) {
            $lang = explode(',', $lang)[0];
        }
        if (str_contains($lang, '-')) {
            $lang = explode('-', $lang)[0];
        }

        $langMap = [
            'hindi'   => 'hi',
            'sawahi'  => 'sw',
            'swahili' => 'sw',
            'taglo'   => 'tl',
            'tagalog' => 'tl',
            'tamil'   => 'ta',
        ];

        if (isset($langMap[$lang])) {
            $lang = $langMap[$lang];
        }

        if (!in_array($lang, ['en', 'hi', 'sw', 'tl', 'ta'])) {
            $lang = 'en';
        }

        $rawNationalities = \App\Models\Nationality::all();

        $callingCodes = [
            'AF' => '+93',
            'AL' => '+355',
            'DZ' => '+213',
            'AD' => '+376',
            'AO' => '+244',
            'AG' => '+1-268',
            'AR' => '+54',
            'AM' => '+374',
            'AU' => '+61',
            'AT' => '+43',
            'AZ' => '+994',
            'BS' => '+1-242',
            'BH' => '+973',
            'BD' => '+880',
            'BB' => '+1-246',
            'BY' => '+375',
            'BE' => '+32',
            'BZ' => '+501',
            'BJ' => '+229',
            'BT' => '+975',
            'BO' => '+591',
            'BA' => '+387',
            'BW' => '+267',
            'BR' => '+55',
            'BN' => '+673',
            'BG' => '+359',
            'BF' => '+226',
            'BI' => '+257',
            'KH' => '+855',
            'CM' => '+237',
            'CA' => '+1',
            'CV' => '+238',
            'CF' => '+236',
            'TD' => '+235',
            'CL' => '+56',
            'CN' => '+86',
            'CO' => '+57',
            'KM' => '+269',
            'CG' => '+242',
            'CD' => '+243',
            'CR' => '+506',
            'HR' => '+385',
            'CU' => '+53',
            'CY' => '+357',
            'CZ' => '+420',
            'DK' => '+45',
            'DJ' => '+253',
            'DM' => '+1-767',
            'DO' => '+1-809',
            'TL' => '+670',
            'EC' => '+593',
            'EG' => '+20',
            'SV' => '+503',
            'GQ' => '+240',
            'ER' => '+291',
            'EE' => '+372',
            'ET' => '+251',
            'FJ' => '+679',
            'FI' => '+358',
            'FR' => '+33',
            'GA' => '+241',
            'GM' => '+220',
            'GE' => '+995',
            'DE' => '+49',
            'GH' => '+233',
            'GR' => '+30',
            'GD' => '+1-473',
            'GT' => '+502',
            'GN' => '+224',
            'GW' => '+245',
            'GY' => '+592',
            'HT' => '+509',
            'HN' => '+504',
            'HU' => '+36',
            'IS' => '+354',
            'IN' => '+91',
            'ID' => '+62',
            'IR' => '+98',
            'IQ' => '+964',
            'IE' => '+353',
            'IL' => '+972',
            'IT' => '+39',
            'JM' => '+1-876',
            'JP' => '+81',
            'JO' => '+962',
            'KZ' => '+7',
            'KE' => '+254',
            'KI' => '+686',
            'KP' => '+850',
            'KR' => '+82',
            'KW' => '+965',
            'KG' => '+996',
            'LA' => '+856',
            'LV' => '+371',
            'LB' => '+961',
            'LS' => '+266',
            'LR' => '+231',
            'LY' => '+218',
            'LI' => '+423',
            'LT' => '+370',
            'LU' => '+352',
            'MK' => '+389',
            'MG' => '+261',
            'MW' => '+265',
            'MY' => '+60',
            'MV' => '+960',
            'ML' => '+223',
            'MT' => '+356',
            'MH' => '+692',
            'MR' => '+222',
            'MU' => '+230',
            'MX' => '+52',
            'FM' => '+691',
            'MD' => '+373',
            'MC' => '+377',
            'MN' => '+976',
            'ME' => '+382',
            'MA' => '+212',
            'MZ' => '+258',
            'MM' => '+95',
            'NA' => '+264',
            'NR' => '+674',
            'NP' => '+977',
            'NL' => '+31',
            'NZ' => '+64',
            'NI' => '+505',
            'NE' => '+227',
            'NG' => '+234',
            'NO' => '+47',
            'OM' => '+968',
            'PK' => '+92',
            'PW' => '+680',
            'PA' => '+507',
            'PG' => '+675',
            'PY' => '+595',
            'PE' => '+51',
            'PH' => '+63',
            'PL' => '+48',
            'PT' => '+351',
            'QA' => '+974',
            'RO' => '+40',
            'RU' => '+7',
            'RW' => '+250',
            'KN' => '+1-869',
            'LC' => '+1-758',
            'VC' => '+1-784',
            'WS' => '+685',
            'SM' => '+378',
            'ST' => '+239',
            'SA' => '+966',
            'SN' => '+221',
            'RS' => '+381',
            'SC' => '+248',
            'SL' => '+232',
            'SG' => '+65',
            'SK' => '+421',
            'SI' => '+386',
            'SB' => '+677',
            'SO' => '+252',
            'ZA' => '+27',
            'SS' => '+211',
            'ES' => '+34',
            'LK' => '+94',
            'SD' => '+249',
            'SR' => '+597',
            'SZ' => '+268',
            'SE' => '+46',
            'CH' => '+41',
            'SY' => '+963',
            'TJ' => '+992',
            'TZ' => '+255',
            'TH' => '+66',
            'TG' => '+228',
            'TO' => '+676',
            'TT' => '+1-868',
            'TN' => '+216',
            'TR' => '+90',
            'TM' => '+993',
            'TV' => '+688',
            'UG' => '+256',
            'UA' => '+380',
            'AE' => '+971',
            'GB' => '+44',
            'US' => '+1',
            'UY' => '+598',
            'UZ' => '+998',
            'VU' => '+678',
            'VE' => '+58',
            'VN' => '+84',
            'YE' => '+967',
            'ZM' => '+260',
            'ZW' => '+263',
            'AI' => '+1-264',
            'VG' => '+1-284',
            'BM' => '+1-441',
            'KY' => '+1-345',
            'CK' => '+682',
            'CY-W' => '+44',
            'CY-M' => '+44',
            'FO' => '+298',
            'GI' => '+350',
            'GL' => '+299',
            'GU' => '+1-671',
            'HK' => '+852',
            'XK' => '+383',
            'MO' => '+853',
            'MQ' => '+596',
            'MS' => '+1-664',
            'NU' => '+683',
            'GB-NIR' => '+44',
            'PS' => '+970',
            'PN' => '+64',
            'PR' => '+1-787',
            'GB-SCT' => '+44',
            'SH' => '+290',
            'ST-L' => '',
            'TA-T' => '+290',
            'TC' => '+1-649',
            'VA' => '+379',
            'WF' => '+681',
            'GB-WLS' => '+44',
        ];

        $list = [];
        foreach ($rawNationalities as $item) {
            $list[] = [
                'code' => $item->code,
                'country_code' => $item->code,
                'phone_code' => $callingCodes[$item->code] ?? '',
                'dial_code' => $callingCodes[$item->code] ?? '',
                'calling_code' => $callingCodes[$item->code] ?? '',
                'name' => $item->{$lang} ?? $item->name,
            ];
        }

        $search = strtolower($request->input('search') ?? $request->input('q') ?? '');
        if ($search !== '') {
            $list = array_filter($list, function ($item) use ($search) {
                return stripos($item['name'], $search) !== false || stripos($item['code'], $search) !== false;
            });
            $list = array_values($list);
        }

        // Apply Pagination
        $page = (int) $request->input('page', 1);
        $perPage = (int) $request->input('per_page', 500);
        if ($perPage === 15) {
            $perPage = 500;
        }
        $total = count($list);
        $offset = ($page - 1) * $perPage;
        $paginatedList = array_slice($list, $offset, $perPage);

        return response()->json([
            'success' => true,
            'data'    => [
                'nationalities' => $paginatedList,
                'pagination'    => [
                    'total'        => $total,
                    'per_page'     => $perPage,
                    'current_page' => $page,
                    'last_page'    => max(1, (int) ceil($total / $perPage)),
                ]
            ],
        ], 200);
    }

    /**
     * Get list of preferred locations translated to requested language.
     * Supports en, hindi (hi), sawahi (sw), taglo (tl), tamil (ta).
     */
    public function preferredLocations(Request $request)
    {
        $lang = strtolower($request->input('lang') ?? $request->header('Accept-Language') ?? 'en');
        if (str_contains($lang, ',')) {
            $lang = explode(',', $lang)[0];
        }
        if (str_contains($lang, '-')) {
            $lang = explode('-', $lang)[0];
        }

        $langMap = [
            'hindi'   => 'hi',
            'sawahi'  => 'sw',
            'swahili' => 'sw',
            'taglo'   => 'tl',
            'tagalog' => 'tl',
            'tamil'   => 'ta',
        ];

        if (isset($langMap[$lang])) {
            $lang = $langMap[$lang];
        }

        if (!in_array($lang, ['en', 'hi', 'sw', 'tl', 'ta'])) {
            $lang = 'en';
        }

        $rawLocations = [
            ['code' => 'dubai', 'name' => 'Dubai', 'hi' => 'दुबई', 'sw' => 'Dubai', 'tl' => 'Dubai', 'ta' => 'துபாய்'],
            ['code' => 'abu dhabi', 'name' => 'Abu Dhabi', 'hi' => 'अबू धाबी', 'sw' => 'Abu Dhabi', 'tl' => 'Abu Dhabi', 'ta' => 'அபுதாபி'],
            ['code' => 'oman', 'name' => 'Oman', 'hi' => 'ओमान', 'sw' => 'Omani', 'tl' => 'Oman', 'ta' => 'ஓமன்']
        ];

        $list = [];
        foreach ($rawLocations as $item) {
            $list[] = [
                'code' => $item['code'],
                'name' => $item[$lang] ?? $item['name'],
            ];
        }

        $search = strtolower($request->input('search') ?? $request->input('q') ?? '');
        if ($search !== '') {
            $list = array_filter($list, function ($item) use ($search) {
                return stripos($item['name'], $search) !== false || stripos($item['code'], $search) !== false;
            });
            $list = array_values($list);
        }

        // Apply Pagination
        $page = (int) $request->input('page', 1);
        $perPage = (int) $request->input('per_page', 15);
        $total = count($list);
        $offset = ($page - 1) * $perPage;
        $paginatedList = array_slice($list, $offset, $perPage);

        return response()->json([
            'success' => true,
            'data'    => [
                'preferred_locations' => $paginatedList,
                'pagination'    => [
                    'total'        => $total,
                    'per_page'     => $perPage,
                    'current_page' => $page,
                    'last_page'    => max(1, (int) ceil($total / $perPage)),
                ]
            ],
        ], 200);
    }

    /**
     * Get list of areas for a specific preferred location translated to requested language.
     * Supports en, hindi (hi), sawahi (sw), taglo (tl), tamil (ta).
     */
    public function preferredLocationAreas(Request $request, $location = null)
    {
        // Get location from path or query parameter
        $loc = strtolower(trim($location ?? $request->input('location') ?? $request->input('city') ?? ''));

        // Handle URL-friendly formats like abu-dhabi, abu_dhabi, abu dhabi
        $loc = str_replace(['_', '-'], ' ', $loc);

        if (empty($loc)) {
            return response()->json([
                'success' => false,
                'message' => 'Please provide a valid location (e.g., dubai, abu dhabi, oman).'
            ], 400);
        }

        $lang = strtolower($request->input('lang') ?? $request->header('Accept-Language') ?? 'en');
        if (str_contains($lang, ',')) {
            $lang = explode(',', $lang)[0];
        }
        if (str_contains($lang, '-')) {
            $lang = explode('-', $lang)[0];
        }

        $langMap = [
            'hindi'   => 'hi',
            'sawahi'  => 'sw',
            'swahili' => 'sw',
            'taglo'   => 'tl',
            'tagalog' => 'tl',
            'tamil'   => 'ta',
        ];

        if (isset($langMap[$lang])) {
            $lang = $langMap[$lang];
        }

        if (!in_array($lang, ['en', 'hi', 'sw', 'tl', 'ta'])) {
            $lang = 'en';
        }

        $areasMapping = [
            'dubai' => [
                ['code' => 'dubai', 'name' => 'Dubai', 'hi' => 'दुबई', 'sw' => 'Dubai', 'tl' => 'Dubai', 'ta' => 'துபாய்'],
                ['code' => 'marina', 'name' => 'Dubai Marina', 'hi' => 'दुबई मरीना', 'sw' => 'Dubai Marina', 'tl' => 'Dubai Marina', 'ta' => 'துபாய் மெரினா'],
                ['code' => 'barsha', 'name' => 'Al Barsha', 'hi' => 'अल बरशा', 'sw' => 'Al Barsha', 'tl' => 'Al Barsha', 'ta' => 'அல் பர்ஷா'],
                ['code' => 'nahda', 'name' => 'Al Nahda', 'hi' => 'अल नहदा', 'sw' => 'Al Nahda', 'tl' => 'Al Nahda', 'ta' => 'அல் நஹ்தா'],
                ['code' => 'jumeirah', 'name' => 'Jumeirah', 'hi' => 'जुमेराह', 'sw' => 'Jumeirah', 'tl' => 'Jumeirah', 'ta' => 'ஜுமேரா'],
                ['code' => 'deira', 'name' => 'Deira', 'hi' => 'देइरा', 'sw' => 'Deira', 'tl' => 'Deira', 'ta' => 'தேரா'],
                ['code' => 'downtown', 'name' => 'Downtown Dubai', 'hi' => 'डाउनटाउन दुबई', 'sw' => 'Downtown Dubai', 'tl' => 'Downtown Dubai', 'ta' => 'டவுன்டவுன் துபாய்'],
                ['code' => 'silicon', 'name' => 'Silicon Oasis', 'hi' => 'सिलिकॉन ओएसिस', 'sw' => 'Silicon Oasis', 'tl' => 'Silicon Oasis', 'ta' => 'சிலிக்கான் ஓசிஸ்'],
                ['code' => 'sports', 'name' => 'Sports City', 'hi' => 'स्पोर्ट्स सिटी', 'sw' => 'Sports City', 'tl' => 'Sports City', 'ta' => 'ஸ்போர்ட்ஸ் சிட்டி'],
                ['code' => 'motor', 'name' => 'Motor City', 'hi' => 'मोटर सिटी', 'sw' => 'Motor City', 'tl' => 'Motor City', 'ta' => 'மோட்டார் சிட்டி'],
                ['code' => 'jlt', 'name' => 'JLT', 'hi' => 'JLT', 'sw' => 'JLT', 'tl' => 'JLT', 'ta' => 'ஜே.எல்.டி'],
                ['code' => 'jbr', 'name' => 'JBR', 'hi' => 'JBR', 'sw' => 'JBR', 'tl' => 'JBR', 'ta' => 'ஜே.பி.ஆர்'],
                ['code' => 'meydan', 'name' => 'Meydan', 'hi' => 'मेदान', 'sw' => 'Meydan', 'tl' => 'Meydan', 'ta' => 'மெய்தான்'],
                ['code' => 'ranches', 'name' => 'Arabian Ranches', 'hi' => 'अरेबियन रैंचेस', 'sw' => 'Arabian Ranches', 'tl' => 'Arabian Ranches', 'ta' => 'அரேபியன் ரான்சஸ்'],
                ['code' => 'bay', 'name' => 'Business Bay', 'hi' => 'बिजनेस बे', 'sw' => 'Business Bay', 'tl' => 'Business Bay', 'ta' => 'பிசினஸ் பே'],
                ['code' => 'mirdif', 'name' => 'Mirdif', 'hi' => 'मिर्डिफ', 'sw' => 'Mirdif', 'tl' => 'Mirdif', 'ta' => 'மிர்திஃப்'],
                ['code' => 'quoz', 'name' => 'Al Quoz', 'hi' => 'अल क्वोज़', 'sw' => 'Al Quoz', 'tl' => 'Al Quoz', 'ta' => 'அல் கூஸ்'],
            ],
            'abu dhabi' => [
                ['code' => 'abu dhabi', 'name' => 'Abu Dhabi City', 'hi' => 'अबू धाबी शहर', 'sw' => 'Abu Dhabi City', 'tl' => 'Abu Dhabi City', 'ta' => 'அபுதாபி நகரம்'],
                ['code' => 'yas', 'name' => 'Yas Island', 'hi' => 'यास द्वीप', 'sw' => 'Yas Island', 'tl' => 'Yas Island', 'ta' => 'யாஸ் தீவு'],
                ['code' => 'khalifa', 'name' => 'Khalifa City', 'hi' => 'खलीफा शहर', 'sw' => 'Khalifa City', 'tl' => 'Khalifa City', 'ta' => 'கலீஃபா நகரம்'],
                ['code' => 'reem', 'name' => 'Reem Island', 'hi' => 'रीम द्वीप', 'sw' => 'Reem Island', 'tl' => 'Reem Island', 'ta' => 'ரீம் தீவு'],
                ['code' => 'saadiyat', 'name' => 'Saadiyat Island', 'hi' => 'सादियात द्वीप', 'sw' => 'Saadiyat Island', 'tl' => 'Saadiyat Island', 'ta' => 'சாதியாத் தீவு'],
                ['code' => 'raha', 'name' => 'Al Raha', 'hi' => 'अल राहा', 'sw' => 'Al Raha', 'tl' => 'Al Raha', 'ta' => 'அல் ராஹா'],
                ['code' => 'mussafah', 'name' => 'Mussafah', 'hi' => 'मुसफ्फह', 'sw' => 'Mussafah', 'tl' => 'Mussafah', 'ta' => 'முஸாஃபா'],
                ['code' => 'zahiyah', 'name' => 'Al Zahiyah', 'hi' => 'अल ज़ाहिया', 'sw' => 'Al Zahiyah', 'tl' => 'Al Zahiyah', 'ta' => 'அல் ஜாஹியா'],
                ['code' => 'karamah', 'name' => 'Al Karamah', 'hi' => 'अल करमा', 'sw' => 'Al Karamah', 'tl' => 'Al Karamah', 'ta' => 'அல் கராமா'],
            ],
            'oman' => [
                ['code' => 'oman', 'name' => 'Oman', 'hi' => 'ओमान', 'sw' => 'Omani', 'tl' => 'Oman', 'ta' => 'ஓமன்'],
                ['code' => 'muscat', 'name' => 'Muscat', 'hi' => 'मस्कट', 'sw' => 'Muscat', 'tl' => 'Muscat', 'ta' => 'மस्कट'],
                ['code' => 'salalah', 'name' => 'Salalah', 'hi' => 'सलालाह', 'sw' => 'Salalah', 'tl' => 'Salalah', 'ta' => 'சலாலா'],
                ['code' => 'sohar', 'name' => 'Sohar', 'hi' => 'सोहर', 'sw' => 'Sohar', 'tl' => 'Sohar', 'ta' => 'சோஹார்'],
                ['code' => 'nizwa', 'name' => 'Nizwa', 'hi' => 'निज़वा', 'sw' => 'Nizwa', 'tl' => 'Nizwa', 'ta' => 'நிஸ்வா'],
                ['code' => 'sur', 'name' => 'Sur', 'hi' => 'सुर', 'sw' => 'Sur', 'tl' => 'Sur', 'ta' => 'சூர்'],
                ['code' => 'ibri', 'name' => 'Ibri', 'hi' => 'इबरी', 'sw' => 'Ibri', 'tl' => 'Ibri', 'ta' => 'இப்ரி'],
                ['code' => 'rustaq', 'name' => 'Rustaq', 'hi' => 'रुस्तक़', 'sw' => 'Rustaq', 'tl' => 'Rustaq', 'ta' => 'रुस्तक़'],
            ]
        ];

        if (!isset($areasMapping[$loc])) {
            return response()->json([
                'success' => false,
                'message' => 'Areas for the specified location were not found. Supported locations: dubai, abu dhabi, oman.'
            ], 404);
        }

        $rawAreas = $areasMapping[$loc];
        $list = [];
        foreach ($rawAreas as $item) {
            $list[] = [
                'code' => $item['code'],
                'name' => $item[$lang] ?? $item['name'],
            ];
        }

        $search = strtolower($request->input('search') ?? $request->input('q') ?? '');
        if ($search !== '') {
            $list = array_filter($list, function ($item) use ($search) {
                return stripos($item['name'], $search) !== false || stripos($item['code'], $search) !== false;
            });
            $list = array_values($list);
        }

        // Apply Pagination
        $page = (int) $request->input('page', 1);
        $perPage = (int) $request->input('per_page', 15);
        $total = count($list);
        $offset = ($page - 1) * $perPage;
        $paginatedList = array_slice($list, $offset, $perPage);

        return response()->json([
            'success' => true,
            'data'    => [
                'location' => $loc,
                'areas' => $paginatedList,
                'pagination'    => [
                    'total'        => $total,
                    'per_page'     => $perPage,
                    'current_page' => $page,
                    'last_page'    => max(1, (int) ceil($total / $perPage)),
                ]
            ],
        ], 200);
    }

    /**
     * Get list of languages translated to requested language.
     * Supports en, hindi (hi), sawahi (sw), taglo (tl), tamil (ta).
     */
    public function languages(Request $request)
    {
        $lang = strtolower($request->input('lang') ?? $request->header('Accept-Language') ?? 'en');
        if (str_contains($lang, ',')) {
            $lang = explode(',', $lang)[0];
        }
        if (str_contains($lang, '-')) {
            $lang = explode('-', $lang)[0];
        }

        $langMap = [
            'hindi'   => 'hi',
            'sawahi'  => 'sw',
            'swahili' => 'sw',
            'taglo'   => 'tl',
            'tagalog' => 'tl',
            'tamil'   => 'ta',
        ];

        if (isset($langMap[$lang])) {
            $lang = $langMap[$lang];
        }

        if (!in_array($lang, ['en', 'hi', 'sw', 'tl', 'ta'])) {
            $lang = 'en';
        }

        $rawLanguages = [
            ['code' => 'en', 'name' => 'English', 'hi' => 'अंग्रेज़ी', 'sw' => 'Kiingereza', 'tl' => 'Ingles', 'ta' => 'ஆங்கிலம்'],
            ['code' => 'ar', 'name' => 'Arabic', 'hi' => 'अरबी', 'sw' => 'Kiarabu', 'tl' => 'Arabe', 'ta' => 'அரபு'],
            ['code' => 'hi', 'name' => 'Hindi', 'hi' => 'हिन्दी', 'sw' => 'Kihindi', 'tl' => 'Hindi', 'ta' => 'இந்தி'],
            ['code' => 'tl', 'name' => 'Tagalog', 'hi' => 'तागालोग', 'sw' => 'Kitagalog', 'tl' => 'Tagalog', 'ta' => 'தகலாக்'],
            ['code' => 'sw', 'name' => 'Swahili', 'hi' => 'स्वाहिली', 'sw' => 'Kiswahili', 'tl' => 'Swahili', 'ta' => 'சுவாஹிலி'],
            ['code' => 'ta', 'name' => 'Tamil', 'hi' => 'तमिल', 'sw' => 'Kitamil', 'tl' => 'Tamil', 'ta' => 'தமிழ்'],
            ['code' => 'ur', 'name' => 'Urdu', 'hi' => 'उर्दू', 'sw' => 'Kiurdu', 'tl' => 'Urdu', 'ta' => 'உருது'],
            ['code' => 'bn', 'name' => 'Bengali', 'hi' => 'बंगाली', 'sw' => 'Kibengali', 'tl' => 'Bengali', 'ta' => 'பெங்காலி'],
            ['code' => 'ml', 'name' => 'Malayalam', 'hi' => 'मलयालम', 'sw' => 'Kimalayalam', 'tl' => 'Malayalam', 'ta' => 'மலையாளம்'],
            ['code' => 'ne', 'name' => 'Nepali', 'hi' => 'नेपाली', 'sw' => 'Kinepali', 'tl' => 'Nepali', 'ta' => 'நேபாளி'],
            ['code' => 'si', 'name' => 'Sinhala', 'hi' => 'सिंहली', 'sw' => 'Kisinhala', 'tl' => 'Sinhala', 'ta' => 'சிங்களம்'],
            ['code' => 'te', 'name' => 'Telugu', 'hi' => 'तेलुगु', 'sw' => 'Kitelugu', 'tl' => 'Telugu', 'ta' => 'தெலுங்கு'],
            ['code' => 'pa', 'name' => 'Punjabi', 'hi' => 'पंजाबी', 'sw' => 'Kipunjabi', 'tl' => 'Punjabi', 'ta' => 'பஞ்சாபி'],
            ['code' => 'ps', 'name' => 'Pashto', 'hi' => 'पश्तो', 'sw' => 'Kipashto', 'tl' => 'Pashto', 'ta' => 'பஷ்தூ'],
            ['code' => 'kn', 'name' => 'Kannada', 'hi' => 'कन्नड़', 'sw' => 'Kikannada', 'tl' => 'Kannada', 'ta' => 'கன்னடம்'],
            ['code' => 'mr', 'name' => 'Marathi', 'hi' => 'मराठी', 'sw' => 'Kimarathi', 'tl' => 'Marathi', 'ta' => 'மராத்தி'],
            ['code' => 'gu', 'name' => 'Gujarati', 'hi' => 'गुजराती', 'sw' => 'Kigujarati', 'tl' => 'Gujarati', 'ta' => 'குஜராत्ति'],
            ['code' => 'fr', 'name' => 'French', 'hi' => 'फ़्रांसीसी', 'sw' => 'Kifaransa', 'tl' => 'Pranses', 'ta' => 'பிரெஞ்சு'],
            ['code' => 'es', 'name' => 'Spanish', 'hi' => 'स्पैनिश', 'sw' => 'Kihispania', 'tl' => 'Espanyol', 'ta' => 'ஸ்பானிஷ்'],
            ['code' => 'zh', 'name' => 'Chinese', 'hi' => 'चीनी', 'sw' => 'Kichina', 'tl' => 'Intsik', 'ta' => 'சீனம்'],
            ['code' => 'ru', 'name' => 'Russian', 'hi' => 'रूसी', 'sw' => 'Kirusi', 'tl' => 'Ruso', 'ta' => 'ரஷ்யன்'],
            ['code' => 'id', 'name' => 'Indonesian', 'hi' => 'इंडोनेशियाई', 'sw' => 'Kiindonesia', 'tl' => 'Indonesian', 'ta' => 'இந்தோனேசியன்'],
        ];

        $list = [];
        foreach ($rawLanguages as $item) {
            $list[] = [
                'code' => $item['code'],
                'name' => $item[$lang] ?? $item['name'],
            ];
        }

        $search = strtolower($request->input('search') ?? $request->input('q') ?? '');
        if ($search !== '') {
            $list = array_filter($list, function ($item) use ($search) {
                return stripos($item['name'], $search) !== false || stripos($item['code'], $search) !== false;
            });
            $list = array_values($list);
        }

        // Apply Pagination
        $page = (int) $request->input('page', 1);
        $perPage = (int) $request->input('per_page', 500);
        if ($perPage === 15) {
            $perPage = 500;
        }
        $total = count($list);
        $offset = ($page - 1) * $perPage;
        $paginatedList = array_slice($list, $offset, $perPage);

        return response()->json([
            'success' => true,
            'data'    => [
                'languages' => $paginatedList,
                'pagination'    => [
                    'total'        => $total,
                    'per_page'     => $perPage,
                    'current_page' => $page,
                    'last_page'    => max(1, (int) ceil($total / $perPage)),
                ]
            ],
        ], 200);
    }

    /**
     * E.g. "14/05/1990" -> "1990-05-14"
     */
    private function normaliseDateForController(?string $raw): ?string
    {
        if (empty($raw)) {
            return null;
        }
        $raw = trim($raw);
        if (preg_match('/^\d{4}-\d{2}-\d{2}$/', $raw)) {
            return $raw;
        }
        try {
            if (preg_match('/^(\d{1,2})[\/\- ]([A-Za-z0-9]+)[\/\- ](\d{4})$/', $raw, $m)) {
                $day   = str_pad($m[1], 2, '0', STR_PAD_LEFT);
                $month = $m[2];
                $year  = $m[3];
                if (is_numeric($month)) {
                    $month = str_pad($month, 2, '0', STR_PAD_LEFT);
                    return "{$year}-{$month}-{$day}";
                }
                $ts = strtotime("{$day} {$month} {$year}");
                return $ts ? date('Y-m-d', $ts) : $raw;
            }
            $dt = new \DateTime($raw);
            return $dt->format('Y-m-d');
        } catch (\Exception $e) {
            return $raw;
        }
    }

    /**
     * Standardize and clean Visa OCR data structure to exactly the 15 required fields.
     */
    private function cleanVisaData(array $visaDataInput): array
    {
        $rawVisaType = $visaDataInput['visa_type'] ?? null;
        if ($rawVisaType) {
            $normalized = strtolower(trim($rawVisaType));
            if (str_contains($normalized, 'residence')) {
                $rawVisaType = 'Residence Visa';
            } elseif (str_contains($normalized, 'employment')) {
                $rawVisaType = 'Employment Visa';
            } else {
                $rawVisaType = 'Tourist Visa';
            }
        } else {
            $rawVisaType = 'Tourist Visa';
        }

        $rawEntryPermitNo = $visaDataInput['entry_permit_no'] ?? $visaDataInput['file_number'] ?? $visaDataInput['id_number'] ?? $visaDataInput['number'] ?? null;
        $rawIssueDate = $visaDataInput['issue_date'] ?? null;
        $rawValidUntil = $visaDataInput['valid_until'] ?? $visaDataInput['expiry_date'] ?? null;
        $rawUidNo = $visaDataInput['uid_no'] ?? $visaDataInput['id_number'] ?? null;
        $rawFullName = $visaDataInput['full_name'] ?? $visaDataInput['name'] ?? null;
        $rawNationality = $visaDataInput['nationality'] ?? null;
        $rawPlaceOfBirth = $visaDataInput['place_of_birth'] ?? null;
        $rawDateOfBirth = $visaDataInput['date_of_birth'] ?? $visaDataInput['dob'] ?? null;
        $rawPassportNo = $visaDataInput['passport_no'] ?? $visaDataInput['passport_number'] ?? null;
        $rawProfession = $visaDataInput['profession'] ?? null;
        $rawSponsorName = $visaDataInput['sponsor_name'] ?? null;

        // Clean sponsor
        $sponsorData = $visaDataInput['sponsor'] ?? [];
        if (is_string($sponsorData)) {
            $sponsorNameFromObj = $sponsorData;
            $sponsorAddress = '';
            $sponsorPhone = '';
        } else {
            $sponsorNameFromObj = $sponsorData['name'] ?? $sponsorData['sponsor_name'] ?? $sponsorData['full_name'] ?? '';
            $sponsorAddress = $sponsorData['address'] ?? '';
            $sponsorPhone = $sponsorData['phone'] ?? $sponsorData['mobile'] ?? $sponsorData['mobile_number'] ?? $sponsorData['phone_number'] ?? '';
        }
        if (empty($rawSponsorName)) {
            $rawSponsorName = $sponsorNameFromObj;
        }

        return [
            'document_type'   => 'uae_visa',
            'country'         => 'United Arab Emirates',
            'visa_type'       => $rawVisaType,
            'entry_permit_no' => $rawEntryPermitNo ?: '',
            'issue_date'      => $rawIssueDate ?: '',
            'valid_until'     => $rawValidUntil ?: '',
            'uid_no'          => $rawUidNo ?: '',
            'full_name'       => $rawFullName ?: '',
            'nationality'     => $rawNationality ?: '',
            'place_of_birth'  => $rawPlaceOfBirth ?: '',
            'date_of_birth'   => $rawDateOfBirth ?: '',
            'passport_no'     => $rawPassportNo ?: '',
            'profession'      => $rawProfession ?: '',
            'sponsor_name'    => $rawSponsorName ?: '',
            'sponsor'         => [
                'name'    => $sponsorNameFromObj ?: '',
                'address' => $sponsorAddress ?: '',
                'phone'   => $sponsorPhone ?: '',
            ]
        ];
    }

    // -------------------------------------------------------------------------
    // Forgot / Reset Password (via Mobile Number)
    // -------------------------------------------------------------------------

    /**
     * POST /api/workers/forgot-password
     * Send a 6-digit OTP to verify the worker's identity by phone number.
     * Workers do not use email — phone is the primary identifier.
     */
    public function forgotPassword(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone' => 'required|string',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'message' => 'Validation error.',
                'errors'  => $validator->errors(),
            ], 422);
        }

        $worker = Worker::where('phone', $request->phone)->first();

        if (!$worker) {
            return response()->json([
                'success' => false,
                'message' => 'user not found this mobile number',
            ], 404);
        }

        $otp      = (string) mt_rand(100000, 999999);
        $cacheKey = 'worker_pwd_reset_' . md5($request->phone);

        Cache::put($cacheKey, [
            'otp'        => Hash::make($otp),
            'expires_at' => now()->addMinutes(10)->timestamp,
        ], now()->addMinutes(10));

        // Send via email if available, otherwise log for dev
        if ($worker->email) {
            try {
                Mail::to($worker->email)->send(
                    new \App\Mail\ForgotPasswordOtpMail($otp, $worker->name, 'Worker')
                );
            } catch (\Exception $e) {
                logger()->error('Worker forgot-password mail failed: ' . $e->getMessage());
            }
        } else {
            // Log OTP for debugging when no email configured
            logger()->info("Worker password reset OTP for {$request->phone}: {$otp}");
        }

        return response()->json([
            'success' => true,
            'message' => 'If an account with that mobile number exists, a reset OTP has been sent.',
        ]);
    }

    /**
     * POST /api/workers/reset-password
     * Verify OTP sent to phone and set a new password.
     */
    public function resetPassword(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'phone'                 => 'required|string',
            'otp'                   => 'required|string|size:6',
            'password'              => 'required|string|min:8|confirmed',
            'password_confirmation' => 'required|string',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'message' => 'Validation error.',
                'errors'  => $validator->errors(),
            ], 422);
        }

        $cacheKey = 'worker_pwd_reset_' . md5($request->phone);
        $cached   = Cache::get($cacheKey);

        if (!$cached || $cached['expires_at'] < now()->timestamp) {
            Cache::forget($cacheKey);
            return response()->json([
                'success' => false,
                'message' => 'OTP has expired or is invalid. Please request a new one.',
            ], 422);
        }

        if (!Hash::check($request->otp, $cached['otp'])) {
            return response()->json([
                'success' => false,
                'message' => 'Invalid OTP. Please check and try again.',
            ], 422);
        }

        $worker = Worker::where('phone', $request->phone)->first();

        if (!$worker) {
            return response()->json([
                'success' => false,
                'message' => 'Account not found.',
            ], 404);
        }

        $worker->update(['password' => Hash::make($request->password)]);
        Cache::forget($cacheKey);

        return response()->json([
            'success' => true,
            'message' => 'Password reset successfully. You can now log in with your new password.',
        ]);
    }
}