<?php

namespace Tests\Feature\Console;

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Modules\EcommerceFinance\Repositories\PinduoduoSettlementBillRepository;
use Modules\EcommerceFinance\Services\PinduoduoSettlementBillImporter;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
use RuntimeException;
use Tests\TestCase;

class PinduoduoSettlementBillImporterTest extends TestCase
{
    /** @var list<string> */
    private array $files = [];

    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->createTables();
    }

    protected function tearDown(): void
    {
        foreach ($this->files as $file) {
            @unlink($file);
        }

        parent::tearDown();
    }

    public function test_it_imports_current_jushengsuan_headers_keeps_all_accounts_and_is_idempotent(): void
    {
        $this->insertActiveRow('OLD-IN-PERIOD', '2026-08-15 12:00:00');
        $this->insertActiveRow('KEEP-OUTSIDE-PERIOD', '2026-07-31 23:59:59');
        $path = $this->xlsx([
            $this->row('REC-INCOME', '2026-08-01 00:00:19', '100.00', '0', '100.00'),
            $this->row('REC-EXPENSE', '2026-08-02 12:00:00', '0', '25.00', '-25.00', '拼多多货款账户', '退款'),
            $this->row('REC-ZERO', '2026-08-03 12:00:00', '0', '0', '0'),
            $this->row('REC-MARKETING', '2026-08-04 12:00:00', '0', '3.00', '-3.00', '拼多多营销账户'),
        ], false);

        $importer = app(PinduoduoSettlementBillImporter::class);
        $result = $importer->import(
            $path,
            '2026-08-01',
            '2026-08-31',
            4,
            '100.00',
            '28.00',
            100,
        );

        $this->assertSame('succeeded', $result['status']);
        $this->assertSame(4, $result['row_count']);
        $this->assertSame(0, $result['excluded_account_rows']);
        $this->assertSame(1, $result['store_count']);
        $this->assertSame(2, $result['bill_item_count']);
        $this->assertSame([
            '拼多多货款账户' => 3,
            '拼多多营销账户' => 1,
        ], $result['account_type_counts']);
        $this->assertSame('100.00', $result['income_total']);
        $this->assertSame('28.00', $result['expense_total']);
        $this->assertSame('72.00', $result['net_total']);
        $this->assertDatabaseMissing('pdd_settlement_bill_rows', ['record_code' => 'OLD-IN-PERIOD'], 'business_mirror');
        $this->assertDatabaseHas('pdd_settlement_bill_rows', ['record_code' => 'KEEP-OUTSIDE-PERIOD'], 'business_mirror');
        $this->assertDatabaseHas('pdd_settlement_bill_rows', [
            'record_code' => 'REC-MARKETING',
            'account_name' => '拼多多营销账户',
            'signed_amount' => -3,
        ], 'business_mirror');
        $this->assertDatabaseHas('pdd_settlement_bill_rows', [
            'record_code' => 'REC-INCOME',
            'signed_amount' => 100,
        ], 'business_mirror');

        $repository = app(PinduoduoSettlementBillRepository::class);
        $this->assertTrue($repository->ready());
        $this->assertSame([
            'income_total' => 100.0,
            'expense_total' => 28.0,
            'cnt' => 4,
        ], $repository->summarize(null, '2026-08-01', '2026-08-31', null));
        $this->assertSame(1, $repository->paginate(null, '2026-08-01', '2026-08-31', 'income', 1, 25)['total']);
        $this->assertSame(2, $repository->paginate(null, '2026-08-01', '2026-08-31', 'expense', 1, 25)['total']);
        $zero = $repository->paginate(null, '2026-08-03', '2026-08-03', null, 1, 25);
        $this->assertSame(0, $zero['rows'][0]['flowType']);

        $unchanged = $importer->import(
            $path,
            '2026-08-01',
            '2026-08-31',
            4,
            '100.00',
            '28.00',
            100,
        );
        $this->assertSame('unchanged', $unchanged['status']);
        $this->assertSame(5, DB::connection('business_mirror')->table('pdd_settlement_bill_rows')->count());

        $this->expectException(RuntimeException::class);
        $this->expectExceptionMessage('本次账期或权威控制数与历史记录不一致');
        $importer->import($path, '2026-08-01', '2026-08-31', 5, '100.00', '28.00', 100);
    }

    public function test_control_mismatch_does_not_replace_the_active_period(): void
    {
        $this->insertActiveRow('ACTIVE-ROW', '2026-08-15 12:00:00');
        $path = $this->xlsx([
            $this->row('NEW-ROW', '2026-08-16 12:00:00', '10.00', '0', '10.00'),
        ]);

        try {
            app(PinduoduoSettlementBillImporter::class)->import(
                $path,
                '2026-08-01',
                '2026-08-31',
                2,
                '10.00',
                '0.00',
                100,
            );
            $this->fail('控制数不一致时必须拒绝激活。');
        } catch (RuntimeException $exception) {
            $this->assertStringContainsString('权威控制数不一致', $exception->getMessage());
        }

        $this->assertDatabaseHas('pdd_settlement_bill_rows', ['record_code' => 'ACTIVE-ROW'], 'business_mirror');
        $this->assertDatabaseMissing('pdd_settlement_bill_rows', ['record_code' => 'NEW-ROW'], 'business_mirror');
        $this->assertSame('failed', DB::connection('business_mirror')->table('pdd_settlement_bill_imports')->value('status'));
        $this->assertSame(2, DB::connection('business_mirror')->table('pdd_settlement_bill_imports')->value('expected_row_count'));
        $this->assertSame(1, DB::connection('business_mirror')->table('pdd_settlement_bill_imports')->value('row_count'));
        $this->assertSame(0, DB::connection('business_mirror')->table('pdd_settlement_bill_staging')->count());
    }

    public function test_duplicate_record_codes_are_rejected_without_replacing_active_rows(): void
    {
        $this->insertActiveRow('ACTIVE-ROW', '2026-08-15 12:00:00');
        $path = $this->xlsx([
            $this->row('DUPLICATE', '2026-08-16 12:00:00', '10.00', '0', '10.00'),
            $this->row('DUPLICATE', '2026-08-17 12:00:00', '20.00', '0', '20.00'),
        ]);

        $failure = null;
        try {
            app(PinduoduoSettlementBillImporter::class)->import(
                $path,
                '2026-08-01',
                '2026-08-31',
                2,
                '30.00',
                '0.00',
                100,
            );
        } catch (\Throwable $exception) {
            $failure = $exception;
        }

        $this->assertNotNull($failure, '重复记录编码必须拒绝导入。');
        $this->assertDatabaseHas('pdd_settlement_bill_rows', ['record_code' => 'ACTIVE-ROW'], 'business_mirror');
        $this->assertDatabaseMissing('pdd_settlement_bill_rows', ['record_code' => 'DUPLICATE'], 'business_mirror');
        $this->assertSame(0, DB::connection('business_mirror')->table('pdd_settlement_bill_staging')->count());
    }

    public function test_out_of_period_and_inconsistent_amount_rows_are_rejected(): void
    {
        $outOfPeriod = $this->xlsx([
            $this->row('OUTSIDE', '2026-09-01 00:00:00', '10.00', '0', '10.00'),
        ]);
        $badAmount = $this->xlsx([
            $this->row('BAD-AMOUNT', '2026-08-10 00:00:00', '10.00', '2.00', '9.00'),
        ]);
        $importer = app(PinduoduoSettlementBillImporter::class);

        foreach ([
            [$outOfPeriod, '发生时间超出指定账期'],
            [$badAmount, '收入、支出与金额不一致'],
        ] as [$path, $message]) {
            try {
                $importer->import($path, '2026-08-01', '2026-08-31', 1, '10.00', '0.00', 100);
                $this->fail($message . '时必须拒绝导入。');
            } catch (RuntimeException $exception) {
                $this->assertStringContainsString($message, $exception->getMessage());
            }
        }

        $this->assertSame(0, DB::connection('business_mirror')->table('pdd_settlement_bill_rows')->count());
        $this->assertSame(0, DB::connection('business_mirror')->table('pdd_settlement_bill_staging')->count());
    }

    public function test_blank_account_type_is_rejected(): void
    {
        $path = $this->xlsx([
            $this->row('BLANK-ACCOUNT', '2026-08-10 00:00:00', '10.00', '0', '10.00', ''),
        ]);

        $this->expectException(RuntimeException::class);
        $this->expectExceptionMessage('缺少账户类型');
        app(PinduoduoSettlementBillImporter::class)->import(
            $path,
            '2026-08-01',
            '2026-08-31',
            1,
            '10.00',
            '0.00',
            100,
        );
    }

    private function createTables(): void
    {
        $schema = Schema::connection('business_mirror');
        $schema->create('pdd_settlement_bill_imports', function (Blueprint $table): void {
            $table->uuid('generation')->primary();
            $table->string('source_filename');
            $table->char('source_sha256', 64)->unique();
            $table->date('period_start');
            $table->date('period_end');
            $table->string('status', 32)->default('running');
            $table->unsignedBigInteger('expected_row_count');
            $table->decimal('expected_income_total', 20, 2);
            $table->decimal('expected_expense_total', 20, 2);
            $table->unsignedBigInteger('row_count')->default(0);
            $table->unsignedBigInteger('excluded_account_rows')->default(0);
            $table->unsignedInteger('store_count')->default(0);
            $table->unsignedInteger('bill_item_count')->default(0);
            $table->json('account_type_counts')->nullable();
            $table->decimal('income_total', 20, 2)->default(0);
            $table->decimal('expense_total', 20, 2)->default(0);
            $table->decimal('net_total', 20, 2)->default(0);
            $table->string('last_error_code', 120)->nullable();
            $table->timestamp('completed_at')->nullable();
            $table->timestamps();
        });
        $schema->create('pdd_settlement_bill_staging', function (Blueprint $table): void {
            $table->bigIncrements('id');
            $table->uuid('generation');
            $this->billColumns($table);
            $table->unique(['generation', 'record_code']);
        });
        $schema->create('pdd_settlement_bill_rows', function (Blueprint $table): void {
            $table->string('record_code', 191)->primary();
            $this->billColumns($table, false);
            $table->uuid('source_generation');
            $table->char('source_sha256', 64);
            $table->timestamp('imported_at');
        });
    }

    private function billColumns(Blueprint $table, bool $includeRecordCode = true): void
    {
        if ($includeRecordCode) {
            $table->string('record_code', 191);
        }
        $table->string('store_name')->nullable();
        $table->string('custom_remark')->nullable();
        $table->string('bill_item')->nullable();
        $table->string('merchant_order_no', 191)->nullable();
        $table->string('online_order_no', 191)->nullable();
        $table->string('business_type')->nullable();
        $table->string('business_description', 1000)->nullable();
        $table->string('account_name')->nullable();
        $table->dateTime('occurred_at');
        $table->decimal('income_amount', 20, 2)->default(0);
        $table->decimal('expense_amount', 20, 2)->default(0);
        $table->decimal('signed_amount', 20, 2)->default(0);
        $table->string('remark', 1000)->nullable();
        $table->dateTime('source_updated_at')->nullable();
        $table->string('source_modified_by')->nullable();
        $table->unsignedBigInteger('source_row_number');
    }

    private function insertActiveRow(string $recordCode, string $occurredAt): void
    {
        DB::connection('business_mirror')->table('pdd_settlement_bill_rows')->insert([
            'record_code' => $recordCode,
            'store_name' => '原有店铺',
            'bill_item' => '原有流水',
            'account_name' => PinduoduoSettlementBillImporter::ACCOUNT_NAME,
            'occurred_at' => $occurredAt,
            'income_amount' => 1,
            'expense_amount' => 0,
            'signed_amount' => 1,
            'source_row_number' => 1,
            'source_generation' => 'existing-generation',
            'source_sha256' => str_repeat('a', 64),
            'imported_at' => '2026-09-01 00:00:00',
        ]);
    }

    /** @return list<string> */
    private function row(
        string $recordCode,
        string $occurredAt,
        string $income,
        string $expense,
        string $signed,
        string $account = PinduoduoSettlementBillImporter::ACCOUNT_NAME,
        string $billItem = '技术服务费',
    ): array {
        return [
            $recordCode,
            '拼多多-测试店铺',
            '',
            $billItem,
            'ORDER-' . $recordCode,
            'ONLINE-' . $recordCode,
            $billItem,
            '001|' . $billItem,
            $account,
            $occurredAt,
            $income,
            $expense,
            $signed,
            '-',
            '2026-09-07 17:07:15',
            'RPA',
        ];
    }

    /** @param list<list<string>> $rows */
    private function xlsx(array $rows, bool $includeSignedAmount = true): string
    {
        $temporary = tempnam(sys_get_temp_dir(), 'pdd-authoritative-');
        $path = $temporary . '.xlsx';
        rename($temporary, $path);
        $spreadsheet = new Spreadsheet();
        $headers = [
            '记录编码', '店铺', '自定义备注', '账单项目', '商户订单号', '线上单号',
            '财务类型', '业务描述', '类型', '发生时间', '收入金额', '支出金额', '金额',
            '备注', '修改时间', '修改人',
        ];
        if (! $includeSignedAmount) {
            array_splice($headers, 12, 1);
            $rows = array_map(static function (array $row): array {
                array_splice($row, 12, 1);

                return $row;
            }, $rows);
        }
        $spreadsheet->getActiveSheet()->fromArray(array_merge([$headers], $rows));
        (new Xlsx($spreadsheet))->save($path);
        $spreadsheet->disconnectWorksheets();
        $this->files[] = $path;

        return $path;
    }
}