<?php

namespace App\Console\Commands;

use App\Mail\MemberActivationMail;
use App\Models\Member;
use App\Models\User;
use App\Support\AuditLogger;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Password;
use Illuminate\Support\Str;

class ImportMembers extends Command
{
    protected $signature = 'members:import {path : CSV file path}';

    protected $description = 'Import members from a CSV file';

    public function handle(): int
    {
        $path = $this->argument('path');

        if (! is_file($path)) {
            $this->error("File not found: {$path}");

            return static::FAILURE;
        }

        $handle = fopen($path, 'r');

        if (! $handle) {
            $this->error("Unable to open file: {$path}");

            return static::FAILURE;
        }

        $header = fgetcsv($handle);

        if (! $header) {
            $this->error('CSV file is empty.');
            fclose($handle);

            return static::FAILURE;
        }

        $header = array_map('trim', $header);

        $required = [
            'full_name',
            'email',
            'phone',
            'address_line_1',
            'address_line_2',
            'city',
            'postal_code',
            'emergency_contact_name',
            'emergency_contact_phone',
            'membership_started_at',
            'membership_expires_at',
        ];

        foreach ($required as $column) {
            if (! in_array($column, $header, true)) {
                $this->error("Missing required column: {$column}");
                fclose($handle);

                return static::FAILURE;
            }
        }

        $indexes = array_flip($header);

        $createdUsers = 0;
        $updatedMembers = 0;

        while (($row = fgetcsv($handle)) !== false) {
            $email = trim($row[$indexes['email']] ?? '');

            if ($email === '') {
                continue;
            }

            $fullName = trim($row[$indexes['full_name']] ?? '');
            $memberNumber = isset($indexes['member_number']) ? trim($row[$indexes['member_number']] ?? '') : '';
            $nationalId = isset($indexes['national_id']) ? trim($row[$indexes['national_id']] ?? '') : '';
            $phone = trim($row[$indexes['phone']] ?? '');
            $phoneHome = isset($indexes['phone_home']) ? trim($row[$indexes['phone_home']] ?? '') : '';
            $phoneFax = isset($indexes['phone_fax']) ? trim($row[$indexes['phone_fax']] ?? '') : '';
            $birthDate = isset($indexes['birth_date']) ? trim($row[$indexes['birth_date']] ?? '') : '';
            $gender = isset($indexes['gender']) ? trim($row[$indexes['gender']] ?? '') : '';
            $identityType = isset($indexes['identity_type']) ? trim($row[$indexes['identity_type']] ?? '') : '';
            $identityOtherText = isset($indexes['identity_other_text']) ? trim($row[$indexes['identity_other_text']] ?? '') : '';
            $occupation = isset($indexes['occupation']) ? trim($row[$indexes['occupation']] ?? '') : '';
            $employer = isset($indexes['employer']) ? trim($row[$indexes['employer']] ?? '') : '';
            $jobTitle = isset($indexes['job_title']) ? trim($row[$indexes['job_title']] ?? '') : '';
            $appliedAt = isset($indexes['applied_at']) ? trim($row[$indexes['applied_at']] ?? '') : '';
            $started = trim($row[$indexes['membership_started_at']] ?? '');
            $expires = trim($row[$indexes['membership_expires_at']] ?? '');
            $address1 = trim($row[$indexes['address_line_1']] ?? '');
            $address2 = trim($row[$indexes['address_line_2']] ?? '');
            $city = trim($row[$indexes['city']] ?? '');
            $postal = trim($row[$indexes['postal_code']] ?? '');
            $emergencyName = trim($row[$indexes['emergency_contact_name']] ?? '');
            $emergencyPhone = trim($row[$indexes['emergency_contact_phone']] ?? '');

            $user = User::where('email', $email)->first();
            $isNewUser = false;

            if (! $user) {
                $user = User::create([
                    'name' => $fullName !== '' ? $fullName : $email,
                    'email' => $email,
                    'password' => Str::random(32),
                ]);
                $isNewUser = true;
                $createdUsers++;
            }

            $member = Member::updateOrCreate(
                ['user_id' => $user->id],
                [
                    'member_number' => $memberNumber !== '' ? $memberNumber : null,
                    'full_name' => $fullName !== '' ? $fullName : $user->name,
                    'email' => $email,
                    'national_id' => $nationalId !== '' ? $nationalId : null,
                    'phone' => $phone !== '' ? $phone : null,
                    'phone_home' => $phoneHome !== '' ? $phoneHome : null,
                    'phone_fax' => $phoneFax !== '' ? $phoneFax : null,
                    'birth_date' => $birthDate !== '' ? $birthDate : null,
                    'gender' => $gender !== '' ? $gender : null,
                    'identity_type' => $identityType !== '' ? $identityType : null,
                    'identity_other_text' => $identityOtherText !== '' ? $identityOtherText : null,
                    'occupation' => $occupation !== '' ? $occupation : null,
                    'employer' => $employer !== '' ? $employer : null,
                    'job_title' => $jobTitle !== '' ? $jobTitle : null,
                    'applied_at' => $appliedAt !== '' ? $appliedAt : null,
                    'address_line_1' => $address1 ?: null,
                    'address_line_2' => $address2 ?: null,
                    'city' => $city ?: null,
                    'postal_code' => $postal ?: null,
                    'emergency_contact_name' => $emergencyName ?: null,
                    'emergency_contact_phone' => $emergencyPhone ?: null,
                    'membership_started_at' => $started !== '' ? $started : null,
                    'membership_expires_at' => $expires !== '' ? $expires : null,
                ],
            );

            $updatedMembers++;

            if ($isNewUser) {
                $token = Password::createToken($user);

                Mail::to($user)->queue(new MemberActivationMail($user, $token));
                AuditLogger::log('user.activation_link_sent', $user, [
                    'email' => $user->email,
                ]);
            }
        }

        fclose($handle);

        $this->info("Users created: {$createdUsers}");
        $this->info("Members imported/updated: {$updatedMembers}");

        return static::SUCCESS;
    }
}