<?php

namespace Tests\Unit\EcommerceFinance;

use Carbon\CarbonImmutable;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Modules\EcommerceFinance\Repositories\AlibabaAccountBalanceRepository;
use Modules\EcommerceFinance\Repositories\MarketingAccountBillMirrorRepository;
use Modules\EcommerceFinance\Services\AlibabaAccountBalanceWorkbookImporter;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
use Tests\TestCase;

class AlibabaAccountBalanceRepositoryTest extends TestCase
{
    private string $workbookPath;

    protected function setUp(): void
    {
        parent::setUp();

        config([
            'database.connections.business_mirror' => [
                'driver' => 'sqlite',
                'database' => ':memory:',
                'prefix' => '',
            ],
            'upstream_mirrors.connection' => 'business_mirror',
        ]);
        DB::purge('business_mirror');
        $this->createTable();
        $this->createBillTable();
        $billMirror = \Mockery::mock(MarketingAccountBillMirrorRepository::class);
        $billMirror->shouldReceive('ready')
            ->with(MarketingAccountBillMirrorRepository::ALIBABA)
            ->andReturnTrue();
        $this->app->instance(MarketingAccountBillMirrorRepository::class, $billMirror);
        CarbonImmutable::setTestNow('2026-09-11 12:00:00');
        $this->workbookPath = sys_get_temp_dir() . '/alibaba-account-balance-' . uniqid('', true) . '.xlsx';
    }

    protected function tearDown(): void
    {
        if (isset($this->workbookPath) && is_file($this->workbookPath)) {
            unlink($this->workbookPath);
        }

        CarbonImmutable::setTestNow();
        DB::purge('business_mirror');
        parent::tearDown();
    }

    public function testItImportsUpdatesFiltersAndPaginatesBalanceSnapshots(): void
    {
        $this->writeWorkbook([
            ['2026-06-30', '阿里店甲', null, null, null, 4142.96, null, null, null, null, null],
            ['2026-06-30', '阿里店乙', 100, 50, 20, 130, 130, 0, '', '已核对', '测试'],
        ]);

        $importer = app(AlibabaAccountBalanceWorkbookImporter::class);
        $first = $importer->import($this->workbookPath, '阿里巴巴余额.xlsx');
        $second = $importer->import($this->workbookPath, '阿里巴巴余额.xlsx');

        $this->assertSame(['created' => 2, 'updated' => 0, 'skipped' => 0, 'total' => 2], $first);
        $this->assertSame(['created' => 0, 'updated' => 2, 'skipped' => 0, 'total' => 2], $second);
        $this->assertSame(2, DB::connection('business_mirror')->table(AlibabaAccountBalanceRepository::TABLE)->count());

        $repository = app(AlibabaAccountBalanceRepository::class);
        $result = $repository->paginateMonthlyBalances('阿里店甲', '2026-06', 1, 25);

        $this->assertTrue($repository->usesBusinessMirror());
        $this->assertSame(['阿里店乙', '阿里店甲'], $repository->storeOptions());
        $this->assertSame(1, $result['total']);
        $this->assertSame('2026-06-30', $result['rows'][0]['date']);
        $this->assertSame('阿里店甲', $result['rows'][0]['store_name']);
        $this->assertSame(4142.96, $result['rows'][0]['closing_balance']);
        $this->assertNull($result['rows'][0]['opening_balance']);
    }

    public function testItRejectsNonMonthEndDatesBeforeWriting(): void
    {
        $this->writeWorkbook([
            ['2026-06-29', '阿里店甲', null, null, null, 10, null, null, null, null, null],
        ]);

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('必须是月末日期');

        app(AlibabaAccountBalanceWorkbookImporter::class)->import($this->workbookPath);
    }

    public function testItCalculatesCompletedMonthsFromTheJuneSnapshotAndMonthlyBills(): void
    {
        $this->writeWorkbook([
            ['2026-06-30', '阿里店甲', null, null, null, 100, null, null, null, null, '历史值'],
        ]);
        app(AlibabaAccountBalanceWorkbookImporter::class)->import($this->workbookPath);
        DB::connection('business_mirror')->table('js_alibaba_bill')->insert([
            ['id' => 1, 'shopName' => '阿里店甲', 'tradeDay' => '2026-07-05', 'tradeAMTIn' => 30, 'tradeAMTOut' => 5],
            ['id' => 2, 'shopName' => '阿里店甲', 'tradeDay' => '2026-07-20', 'tradeAMTIn' => 20, 'tradeAMTOut' => 15],
            ['id' => 3, 'shopName' => '阿里店甲', 'tradeDay' => '2026-08-02', 'tradeAMTIn' => 10, 'tradeAMTOut' => 40],
        ]);

        $repository = app(AlibabaAccountBalanceRepository::class);
        $july = $repository->paginateMonthlyBalances('阿里店甲', '2026-07');
        $august = $repository->paginateMonthlyBalances('阿里店甲', '2026-08');

        $this->assertSame(100.0, $july['rows'][0]['opening_balance']);
        $this->assertSame(50.0, $july['rows'][0]['income_total']);
        $this->assertSame(20.0, $july['rows'][0]['expense_total']);
        $this->assertSame(130.0, $july['rows'][0]['closing_balance']);
        $this->assertSame(0.0, $july['rows'][0]['system_closing_balance']);
        $this->assertSame(-130.0, $july['rows'][0]['balance_difference']);
        $this->assertSame('待核对', $july['rows'][0]['verification_status']);
        $this->assertSame('系统期末余额与计算期末余额相差 130.00 元', $july['rows'][0]['difference_reason']);

        $this->assertSame('2026-08-31', $august['rows'][0]['date']);
        $this->assertSame(130.0, $august['rows'][0]['opening_balance']);
        $this->assertSame(100.0, $august['rows'][0]['closing_balance']);
        $this->assertSame(-100.0, $august['rows'][0]['balance_difference']);
    }

    public function testItKeepsHistoricalRowsUnchangedAndCarriesAcrossMonthsWithoutTransactions(): void
    {
        $this->writeWorkbook([
            ['2026-06-30', '阿里店乙', null, null, null, 88.88, null, null, '历史原因', '', '历史备注'],
        ]);
        app(AlibabaAccountBalanceWorkbookImporter::class)->import($this->workbookPath);
        DB::connection('business_mirror')->table('js_alibaba_bill')->insert([
            ['id' => 1, 'shopName' => '阿里店乙', 'tradeDay' => '2026-08-12', 'tradeAMTIn' => 11.12, 'tradeAMTOut' => 0],
        ]);

        $repository = app(AlibabaAccountBalanceRepository::class);
        $historical = $repository->paginateMonthlyBalances('阿里店乙', '2026-06');
        $august = $repository->paginateMonthlyBalances('阿里店乙', '2026-08');

        $this->assertNull($historical['rows'][0]['opening_balance']);
        $this->assertSame(88.88, $historical['rows'][0]['closing_balance']);
        $this->assertNull($historical['rows'][0]['system_closing_balance']);
        $this->assertSame('历史原因', $historical['rows'][0]['difference_reason']);
        $this->assertSame('历史备注', $historical['rows'][0]['notes']);
        $this->assertSame(88.88, $august['rows'][0]['opening_balance']);
        $this->assertSame(100.0, $august['rows'][0]['closing_balance']);
    }

    public function testItExplainsMissingOpeningBalancesAndMarksZeroDifferencesVerified(): void
    {
        $this->writeWorkbook([
            ['2026-06-30', '有期初店铺', null, null, null, 10, null, null, null, null, null],
        ]);
        app(AlibabaAccountBalanceWorkbookImporter::class)->import($this->workbookPath);
        DB::connection('business_mirror')->table('js_alibaba_bill')->insert([
            ['id' => 1, 'shopName' => '无期初店铺', 'tradeDay' => '2026-07-10', 'tradeAMTIn' => 12, 'tradeAMTOut' => 2],
            ['id' => 2, 'shopName' => '有期初店铺', 'tradeDay' => '2026-07-10', 'tradeAMTIn' => 5, 'tradeAMTOut' => 15],
        ]);

        $repository = app(AlibabaAccountBalanceRepository::class);
        $missing = $repository->paginateMonthlyBalances('无期初店铺', '2026-07')['rows'][0];
        $verified = $repository->paginateMonthlyBalances('有期初店铺', '2026-07')['rows'][0];

        $this->assertNull($missing['opening_balance']);
        $this->assertNull($missing['closing_balance']);
        $this->assertNull($missing['balance_difference']);
        $this->assertSame(0.0, $missing['system_closing_balance']);
        $this->assertSame('缺少上月期末余额', $missing['difference_reason']);
        $this->assertSame('待核对', $missing['verification_status']);
        $this->assertSame(0.0, $verified['closing_balance']);
        $this->assertSame(0.0, $verified['balance_difference']);
        $this->assertSame('', $verified['difference_reason']);
        $this->assertSame('已核对', $verified['verification_status']);
    }

    public function testItDoesNotExposeTheCurrentOrFutureMonth(): void
    {
        $this->writeWorkbook([
            ['2026-06-30', '阿里店甲', null, null, null, 100, null, null, null, null, null],
        ]);
        app(AlibabaAccountBalanceWorkbookImporter::class)->import($this->workbookPath);
        DB::connection('business_mirror')->table('js_alibaba_bill')->insert([
            ['id' => 1, 'shopName' => '阿里店甲', 'tradeDay' => '2026-09-01', 'tradeAMTIn' => 20, 'tradeAMTOut' => 0],
        ]);

        $repository = app(AlibabaAccountBalanceRepository::class);

        $this->assertSame(['rows' => [], 'total' => 0], $repository->paginateMonthlyBalances(null, '2026-09'));
        $this->assertSame(['rows' => [], 'total' => 0], $repository->paginateMonthlyBalances(null, '2026-10'));
    }

    /** @param array<int,array<int,mixed>> $rows */
    private function writeWorkbook(array $rows): void
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();
        $sheet->setTitle('阿里巴巴账户');
        $sheet->fromArray([[
            '日期', '店铺名称', '期初余额', '本期收入', '本期支出', '期末余额',
            '系统期末余额', '余额差异', '差异原因', '核对状态', '备注',
        ], ...$rows]);
        (new Xlsx($spreadsheet))->save($this->workbookPath);
        $spreadsheet->disconnectWorksheets();
    }

    private function createTable(): void
    {
        Schema::connection('business_mirror')->create(AlibabaAccountBalanceRepository::TABLE, function (Blueprint $table): void {
            $table->id();
            $table->date('balance_date');
            $table->string('store_name');
            $table->decimal('opening_balance', 20, 6)->nullable();
            $table->decimal('income_total', 20, 6)->nullable();
            $table->decimal('expense_total', 20, 6)->nullable();
            $table->decimal('closing_balance', 20, 6)->nullable();
            $table->decimal('system_closing_balance', 20, 6)->nullable();
            $table->decimal('balance_difference', 20, 6)->nullable();
            $table->text('difference_reason')->nullable();
            $table->string('verification_status')->nullable();
            $table->text('notes')->nullable();
            $table->string('source_file_name');
            $table->char('source_sha256', 64);
            $table->dateTime('imported_at');
            $table->timestamps();
            $table->unique(['balance_date', 'store_name']);
        });
    }

    private function createBillTable(): void
    {
        Schema::connection('business_mirror')->create('js_alibaba_bill', function (Blueprint $table): void {
            $table->unsignedBigInteger('id')->primary();
            $table->string('shopName')->nullable();
            $table->dateTime('tradeDay')->nullable();
            $table->decimal('tradeAMTIn', 20, 6)->nullable();
            $table->decimal('tradeAMTOut', 20, 6)->nullable();
        });
    }
}