<?php

namespace Tests\Feature\Console;

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

class InventoryReportAuthoritativeImportTest extends TestCase
{
    private array $temporaryFiles = [];

    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->temporaryFiles as $file) {
            @unlink($file);
        }
        parent::tearDown();
    }

    public function test_it_imports_monthly_warehouse_rows_and_preserves_opening_quantity(): void
    {
        $path = $this->workbook([
            $this->headers(),
            $this->row('2026-08-01', '简尚-崔桥工厂仓', '简尚-崔桥工厂仓主仓', '15962G', 14, 6, [
                '销售出仓' => -28,
                '调拨入' => 20,
            ]),
            $this->row('2026-08-01', '简尚-崔桥工厂仓', '简尚-崔桥工厂仓进货仓', '15962G', 0, 0, [
                '采购进仓' => 20,
                '调拨出' => -20,
            ]),
        ]);

        $this->artisan('business-mirror:import-inventory-report-month', ['path' => $path])
            ->assertSuccessful();

        $state = DB::connection('business_mirror')->table('inventory_report_authoritative_states')->first();
        $this->assertSame(InventoryReportAuthoritativeImporter::DATASET_KEY, $state->dataset_key);
        $this->assertSame('2026-08-01', $state->source_month);
        $this->assertSame(2, (int) $state->source_row_count);
        $this->assertDatabaseHas('inventory_report_authoritative_rows', [
            'generation' => $state->active_generation,
            'warehouse' => '简尚-崔桥工厂仓主仓',
            'product_code' => '15962G',
            'opening_quantity' => 14,
            'closing_quantity' => 6,
            'sales_out' => -28,
            'transfer_in' => 20,
        ], 'business_mirror');
    }

    public function test_it_keeps_authoritative_generations_for_multiple_months(): void
    {
        $august = app(InventoryReportAuthoritativeImporter::class)->import($this->workbook([
            $this->headers(),
            $this->row('2026-08-01', '仓储方', '主仓', 'SKU-A', 10, 12, ['采购进仓' => 2]),
        ]));
        $july = app(InventoryReportAuthoritativeImporter::class)->import($this->workbook([
            $this->headers(),
            $this->row('2026-07-01', '仓储方', '主仓', 'SKU-A', 8, 10, ['采购进仓' => 2]),
        ]));

        $months = DB::connection('business_mirror')
            ->table('inventory_report_authoritative_months')
            ->where('dataset_key', InventoryReportAuthoritativeImporter::DATASET_KEY)
            ->orderBy('source_month')
            ->get();

        $this->assertCount(2, $months);
        $this->assertSame('2026-07-01', (string) $months[0]->source_month);
        $this->assertSame($july['generation'], (string) $months[0]->active_generation);
        $this->assertSame('2026-08-01', (string) $months[1]->source_month);
        $this->assertSame($august['generation'], (string) $months[1]->active_generation);
        $this->assertSame(2, DB::connection('business_mirror')
            ->table('inventory_report_authoritative_rows')->count());
    }

    public function test_invalid_replacement_keeps_previous_generation(): void
    {
        $valid = app(InventoryReportAuthoritativeImporter::class)->import($this->workbook([
            $this->headers(),
            $this->row('2026-08-01', '仓储方', '主仓', 'SKU-A', 1, 1),
        ]));
        $invalid = $this->workbook([
            $this->headers(),
            $this->row('2026-08-01', '仓储方', '主仓', 'SKU-A', 1, 2),
        ]);

        $this->artisan('business-mirror:import-inventory-report-month', ['path' => $invalid])
            ->expectsOutputToContain('已保留上一版有效数据')
            ->assertFailed();

        $state = DB::connection('business_mirror')->table('inventory_report_authoritative_states')->first();
        $this->assertSame($valid['generation'], $state->active_generation);
        $this->assertSame(1, DB::connection('business_mirror')->table('inventory_report_authoritative_rows')
            ->where('generation', $valid['generation'])->count());
    }

    public function test_it_finds_the_detail_sheet_when_a_pivot_sheet_comes_first(): void
    {
        $temporary = tempnam(sys_get_temp_dir(), 'inventory-report-multi-sheet-');
        $path = $temporary . '.xlsx';
        rename($temporary, $path);
        $spreadsheet = new Spreadsheet();
        $spreadsheet->getActiveSheet()->setTitle('汇总');
        $spreadsheet->getActiveSheet()->fromArray([
            ['条码+仓库', '求和项:期初数量'],
            ['SKU-A主仓', 99],
        ]);
        $detail = $spreadsheet->createSheet();
        $detail->setTitle('明细');
        $detail->fromArray([
            $this->headers(),
            $this->row('2026-08-01', '仓储方', '主仓', 'SKU-A', 1, 1),
        ]);
        (new Xlsx($spreadsheet))->save($path);
        $spreadsheet->disconnectWorksheets();
        $this->temporaryFiles[] = $path;

        $result = app(InventoryReportAuthoritativeImporter::class)->import($path);

        $this->assertSame('2026-08-01', $result['source_month']);
        $this->assertSame(1, $result['source_rows']);
        $this->assertDatabaseHas('inventory_report_authoritative_rows', [
            'generation' => $result['generation'],
            'product_code' => 'SKU-A',
            'warehouse' => '主仓',
        ], 'business_mirror');
    }

    private function createTables(): void
    {
        $schema = Schema::connection('business_mirror');
        $schema->create('inventory_report_authoritative_states', function (Blueprint $table): void {
            $table->string('dataset_key')->primary();
            $table->string('status');
            $table->string('active_generation')->nullable();
            $table->string('pending_generation')->nullable();
            $table->string('source_filename')->nullable();
            $table->string('source_sha256')->nullable();
            $table->date('source_month')->nullable();
            $table->unsignedBigInteger('source_row_count')->default(0);
            $table->dateTime('last_attempted_at')->nullable();
            $table->dateTime('last_succeeded_at')->nullable();
            $table->string('last_error_code')->nullable();
            $table->timestamps();
        });
        $schema->create('inventory_report_authoritative_rows', function (Blueprint $table): void {
            $table->string('generation');
            $table->string('row_key');
            $table->date('report_month');
            $table->string('owner');
            $table->string('warehouse_provider');
            $table->string('warehouse');
            $table->string('product_code');
            $table->string('category')->nullable();
            foreach ([
                'opening_quantity', 'closing_quantity', 'processing_in', 'processing_out',
                'purchase_in', 'purchase_return', 'other_in', 'other_return', 'sales_out',
                'sales_return', 'stocktake', 'transfer_out', 'transfer_in', 'opening', 'other_out',
            ] as $column) {
                $table->decimal($column, 20, 4)->default(0);
            }
            $table->dateTime('imported_at');
            $table->primary(['generation', 'row_key']);
        });
        $schema->create('inventory_report_authoritative_months', function (Blueprint $table): void {
            $table->string('dataset_key');
            $table->date('source_month');
            $table->string('status')->default('succeeded');
            $table->string('active_generation')->nullable();
            $table->string('source_filename')->nullable();
            $table->string('source_sha256')->nullable();
            $table->unsignedBigInteger('source_row_count')->default(0);
            $table->dateTime('last_succeeded_at')->nullable();
            $table->timestamps();
            $table->primary(['dataset_key', 'source_month']);
        });
    }

    private function headers(): array
    {
        return [
            '货主', '月份', '仓储方', '仓库', '商品编码', '图片', '商品名称', '商品简称',
            '分类', '虚拟分类', '供应商款号', '颜色规格', '品牌', '单位', '期初数量', '期末数量',
            '加工进仓', '加工出仓', '采购进仓', '采购退货', '其它进仓', '其它退货',
            '销售出仓', '销售退货', '盘点', '调拨出', '调拨入', '期初', '其它出库',
        ];
    }

    private function row(
        string $month,
        string $provider,
        string $warehouse,
        string $sku,
        float $opening,
        float $closing,
        array $movements = [],
    ): array {
        $row = array_fill(0, 29, null);
        $row[0] = '常州简尚家居有限公司';
        $row[1] = $month;
        $row[2] = $provider;
        $row[3] = $warehouse;
        $row[4] = $sku;
        $row[8] = '测试分类';
        $row[14] = $opening;
        $row[15] = $closing;
        foreach ([
            '加工进仓', '加工出仓', '采购进仓', '采购退货', '其它进仓', '其它退货',
            '销售出仓', '销售退货', '盘点', '调拨出', '调拨入', '期初', '其它出库',
        ] as $offset => $header) {
            $row[16 + $offset] = $movements[$header] ?? 0;
        }

        return $row;
    }

    private function workbook(array $rows): string
    {
        $temporary = tempnam(sys_get_temp_dir(), 'inventory-report-month-');
        $path = $temporary . '.xlsx';
        rename($temporary, $path);
        $spreadsheet = new Spreadsheet();
        $spreadsheet->getActiveSheet()->fromArray($rows);
        (new Xlsx($spreadsheet))->save($path);
        $spreadsheet->disconnectWorksheets();
        $this->temporaryFiles[] = $path;

        return $path;
    }
}