<?php

declare(strict_types=1);

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Artisan;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;

uses(RefreshDatabase::class);

beforeEach(function (): void {
    config()->set('database.connections.legacy', config('database.connections.' . config('database.default')));
    DB::purge('legacy');

    Schema::connection('legacy')->dropIfExists('legacy_users');
    Schema::connection('legacy')->create('legacy_users', function (Blueprint $table): void {
        $table->unsignedBigInteger('user_id')->primary();
        $table->string('uname')->nullable();
        $table->string('email')->nullable();
        $table->string('real_name')->nullable();
        $table->timestamp('joinDate')->nullable();
        $table->timestamp('LastVisit')->nullable();
        $table->unsignedTinyInteger('active')->default(1);
        $table->unsignedTinyInteger('should_migrate')->default(0);
    });
});

afterEach(function (): void {
    Schema::connection('legacy')->dropIfExists('legacy_users');
});

it('passes when every legacy should_migrate user exists in the new users table', function (): void {
    DB::table('users')->insert([
        [
            'id' => 101,
            'username' => 'alpha',
            'email' => 'alpha@example.test',
            'password' => bcrypt('secret'),
            'created_at' => now(),
            'updated_at' => now(),
        ],
        [
            'id' => 102,
            'username' => 'beta',
            'email' => 'beta@example.test',
            'password' => bcrypt('secret'),
            'created_at' => now(),
            'updated_at' => now(),
        ],
    ]);

    DB::connection('legacy')->table('legacy_users')->insert([
        ['user_id' => 101, 'uname' => 'alpha', 'email' => 'alpha@example.test', 'should_migrate' => 1],
        ['user_id' => 102, 'uname' => 'beta', 'email' => 'beta@example.test', 'should_migrate' => 1],
        ['user_id' => 103, 'uname' => 'gamma', 'email' => 'gamma@example.test', 'should_migrate' => 0],
    ]);

    $code = Artisan::call('users:audit-missing-migrated', [
        '--legacy-users-table' => 'legacy_users',
        '--chunk' => 1,
    ]);

    $output = Artisan::output();

    expect($code)->toBe(0)
        ->and($output)->toContain('Scanning legacy.legacy_users for should_migrate=1 and checking')
        ->and($output)->toContain('Done. scanned=2 existing=2 missing=0')
        ->and($output)->not->toContain('[missing]');
});

it('fails and outputs legacy users that are missing in the new users table', function (): void {
    DB::table('users')->insert([
        'id' => 201,
        'username' => 'present-user',
        'email' => 'present@example.test',
        'password' => bcrypt('secret'),
        'created_at' => now(),
        'updated_at' => now(),
    ]);

    DB::connection('legacy')->table('legacy_users')->insert([
        ['user_id' => 201, 'uname' => 'present-user', 'email' => 'present@example.test', 'should_migrate' => 1],
        ['user_id' => 202, 'uname' => 'missing-user', 'email' => 'missing@example.test', 'should_migrate' => 1],
        ['user_id' => 203, 'uname' => null, 'email' => null, 'should_migrate' => 1],
    ]);

    $code = Artisan::call('users:audit-missing-migrated', [
        '--legacy-users-table' => 'legacy_users',
        '--chunk' => 2,
    ]);

    $output = Artisan::output();

    expect($code)->toBe(1)
        ->and($output)->toContain('[missing] id=202 uname=@missing-user email=<missing@example.test>')
        ->and($output)->toContain('[missing] id=203 uname=(none) email=(none)')
        ->and($output)->toContain('Done. scanned=3 existing=1 missing=2');
});

it('can write missing users to a transaction wrapped sql file', function (): void {
    $sqlPath = base_path('test-results/audit-missing-migrated-users.sql');
    @unlink($sqlPath);

    DB::table('users')->insert([
        [
            'id' => 301,
            'username' => 'present-user',
            'email' => 'present@example.test',
            'password' => bcrypt('secret'),
            'created_at' => now(),
            'updated_at' => now(),
        ],
        [
            'id' => 999,
            'username' => 'missing-user',
            'email' => 'missing@example.test',
            'password' => bcrypt('secret'),
            'created_at' => now(),
            'updated_at' => now(),
        ],
    ]);

    DB::connection('legacy')->table('legacy_users')->insert([
        [
            'user_id' => 301,
            'uname' => 'present-user',
            'email' => 'present@example.test',
            'real_name' => 'Present User',
            'joinDate' => '2024-01-01 10:00:00',
            'LastVisit' => '2024-01-02 11:00:00',
            'active' => 1,
            'should_migrate' => 1,
        ],
        [
            'user_id' => 302,
            'uname' => 'missing-user',
            'email' => 'missing@example.test',
            'real_name' => 'Legacy Missing',
            'joinDate' => '2023-05-01 08:30:00',
            'LastVisit' => '2023-05-03 09:45:00',
            'active' => 0,
            'should_migrate' => 1,
        ],
    ]);

    $code = Artisan::call('users:audit-missing-migrated', [
        '--legacy-users-table' => 'legacy_users',
        '--sql-output' => $sqlPath,
    ]);

    $output = Artisan::output();
    $sql = file_get_contents($sqlPath);

    expect($code)->toBe(1)
        ->and($output)->toContain('SQL export written to ' . $sqlPath . ' with 1 INSERT statement(s).')
        ->and($sql)->not->toBeFalse()
        ->and($sql)->toContain('START TRANSACTION;')
        ->and($sql)->toContain('INSERT INTO `users`')
        ->and($sql)->toContain("302, 'tmpu302'")
        ->and($sql)->toContain("'missing+1@example.test'")
        ->and($sql)->toContain("'Legacy Missing'")
        ->and($sql)->toContain('COMMIT;');

    @unlink($sqlPath);
});