<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     * 对账管理（D1-D10）：财务对账、门店对账单、结算表
     */
    public function up(): void
    {
        // 财务对账单表（D1 按品类对账、D2 按供应商筛选）
        if (! Schema::hasTable('reconciliation')) {
            Schema::create('reconciliation', function (Blueprint $table) {
                $table->increments('id')->comment('对账ID');
                $table->string('recon_no', 32)->unique()->comment('对账单编号');
                $table->string('title', 100)->comment('对账单标题');
                $table->date('period_start')->comment('对账周期开始');
                $table->date('period_end')->comment('对账周期结束');
                $table->integer('category_id')->default(0)->comment('按品类筛选（0为全部，D1）');
                $table->integer('supplier_id')->default(0)->comment('按供应商筛选（0为全部，D2）');
                $table->decimal('publish_amount', 10, 2)->default(0)->comment('公布金额合计（D5）');
                $table->decimal('actual_amount', 10, 2)->default(0)->comment('实际采购金额合计（D5）');
                $table->decimal('diff_amount', 10, 2)->default(0)->comment('差额合计（D5）');
                $table->integer('status')->default(0)->comment('状态（0对账中 1已完成 2已生成结算表）');
                $table->integer('operator_id')->default(0)->comment('对账员（系统用户ID）');
                $table->string('remark', 255)->default('')->comment('备注');
                $table->timestamps();
                $table->index(['period_start', 'period_end'], 'reconciliation_period_index');
                $table->comment('财务对账单表');
            });
        }

        // 财务对账明细表（D4 数据修改、D5 差额对比、D6 单品级门店备注、D8 对账状态标记）
        if (! Schema::hasTable('reconciliation_item')) {
            Schema::create('reconciliation_item', function (Blueprint $table) {
                $table->increments('id')->comment('明细ID');
                $table->integer('recon_id')->comment('财务对账单ID');
                $table->integer('store_id')->comment('门店ID');
                $table->integer('purchase_item_id')->default(0)->comment('采购单明细ID');
                $table->integer('order_item_id')->default(0)->comment('门店订货明细ID');
                $table->integer('product_id')->comment('商品ID');
                $table->string('product_name', 100)->comment('品名（快照）');
                $table->decimal('quantity', 10, 2)->default(0)->comment('数量（D4可修改）');
                $table->decimal('weight', 10, 3)->default(0)->comment('称重数据（D4可修改）');
                $table->decimal('publish_amount', 10, 2)->default(0)->comment('公布金额（门店订货金额）');
                $table->decimal('actual_amount', 10, 2)->default(0)->comment('实际采购金额（分摊）');
                $table->decimal('diff_amount', 10, 2)->default(0)->comment('差额');
                $table->integer('is_reconciled')->default(0)->comment('对账状态（1已对账 0未对账，D8）');
                $table->string('store_remark', 255)->default('')->comment('单品级门店备注（D6）');
                $table->integer('sort')->default(0)->comment('排序');
                $table->timestamps();
                $table->index(['recon_id'], 'reconciliation_item_recon_index');
                $table->index(['store_id', 'is_reconciled'], 'reconciliation_item_store_index');
                $table->comment('财务对账明细表');
            });
        }

        // 门店对账单表（门店在小程序端自助生成，回款周期快照决定应结算日期）
        if (! Schema::hasTable('statement')) {
            Schema::create('statement', function (Blueprint $table) {
                $table->increments('id')->comment('对账单ID');
                $table->string('statement_no', 32)->unique()->comment('对账单编号');
                $table->integer('store_id')->comment('门店ID');
                $table->date('period_start')->comment('对账周期开始');
                $table->date('period_end')->comment('对账周期结束');
                $table->decimal('total_amount', 10, 2)->default(0)->comment('对账总金额');
                $table->integer('payment_cycle_days')->default(0)->comment('回款周期（天），生成时从门店快照');
                $table->date('settlement_date')->nullable()->comment('应结算日期（按回款周期计算）');
                $table->integer('status')->default(0)->comment('状态（0未对账 1已对账 2已结算）');
                $table->timestamp('reconciled_at')->nullable()->comment('对账完成时间');
                $table->timestamp('settled_at')->nullable()->comment('结算时间');
                $table->string('remark', 255)->default('')->comment('备注');
                $table->timestamps();
                $table->index(['store_id', 'period_start'], 'statement_store_period_index');
                $table->comment('门店对账单表');
            });
        }

        // 门店对账单明细表（每个单品/订单的对账状态标识）
        if (! Schema::hasTable('statement_item')) {
            Schema::create('statement_item', function (Blueprint $table) {
                $table->increments('id')->comment('明细ID');
                $table->integer('statement_id')->comment('对账单ID');
                $table->integer('order_id')->comment('订单ID');
                $table->integer('order_item_id')->comment('订货明细ID');
                $table->integer('product_id')->comment('商品ID');
                $table->string('product_name', 100)->comment('品名（快照）');
                $table->decimal('price', 10, 2)->default(0)->comment('单价');
                $table->decimal('quantity', 10, 2)->default(0)->comment('订货量');
                $table->decimal('weight', 10, 3)->default(0)->comment('重量');
                $table->decimal('amount', 10, 2)->default(0)->comment('单品金额');
                $table->integer('is_reconciled')->default(0)->comment('对账状态（1已对账 0未对账）');
                $table->string('store_remark', 255)->default('')->comment('门店备注');
                $table->timestamps();
                $table->index(['statement_id'], 'statement_item_statement_index');
                $table->comment('门店对账单明细表');
            });
        }

        // 结算表（D9 对账结束后生成结算表/回框统计表，D10 下载存档）
        if (! Schema::hasTable('settlement')) {
            Schema::create('settlement', function (Blueprint $table) {
                $table->increments('id')->comment('结算ID');
                $table->string('settlement_no', 32)->unique()->comment('结算单编号');
                $table->integer('recon_id')->default(0)->comment('关联财务对账单ID');
                $table->integer('store_id')->default(0)->comment('门店ID（0为汇总结算）');
                $table->date('period_start')->comment('结算周期开始');
                $table->date('period_end')->comment('结算周期结束');
                $table->decimal('total_amount', 10, 2)->default(0)->comment('结算总金额（公布）');
                $table->decimal('actual_amount', 10, 2)->default(0)->comment('实际采购总金额');
                $table->decimal('diff_amount', 10, 2)->default(0)->comment('差额合计');
                $table->integer('status')->default(0)->comment('状态（0待结算 1已结算）');
                $table->string('file_path', 255)->default('')->comment('导出文件路径（Excel/PDF，D10）');
                $table->integer('operator_id')->default(0)->comment('操作人（系统用户ID）');
                $table->timestamp('settled_at')->nullable()->comment('结算时间');
                $table->string('remark', 255)->default('')->comment('备注');
                $table->timestamps();
                $table->index(['store_id', 'status'], 'settlement_store_status_index');
                $table->comment('结算表');
            });
        }
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('reconciliation');
        Schema::dropIfExists('reconciliation_item');
        Schema::dropIfExists('statement');
        Schema::dropIfExists('statement_item');
        Schema::dropIfExists('settlement');
    }
};