using System.Globalization;
using Oms.Domain.WarehouseAggregate.Entities;

namespace Oms.Application.Labeling;

/// <summary>
/// 库内 SKU 标签 PrintData（camelCase，与 hiprint 字段对齐）。
/// </summary>
public static class SkuLabelPrintDataBuilder
{
    public static IReadOnlyDictionary<string, object?> Build(
        CSku sku,
        string? customerName = null,
        string? customerCode = null,
        string? warehouseName = null,
        string? operatorName = null,
        DateTime? printTime = null)
    {
        var barcode = string.IsNullOrWhiteSpace(sku.SkuCode) ? $"SKU-{sku.Id}" : sku.SkuCode.Trim();
        return new Dictionary<string, object?>(StringComparer.OrdinalIgnoreCase)
        {
            ["skuId"] = sku.Id,
            ["skuCode"] = sku.SkuCode,
            ["skuName"] = sku.SkuName,
            ["skuNameEn"] = sku.SkuNameEn,
            ["barcode"] = barcode,
            ["skuImageUrl"] = sku.SkuImageUrl,
            ["unitPrice"] = sku.UnitPrice,
            ["exHsCode"] = sku.ExHsCode,
            ["imHsCode"] = sku.ImHsCode,
            ["declareElement"] = sku.DeclareElement,
            ["weightG"] = sku.WeightG,
            ["lengthCm"] = sku.LengthCm,
            ["widthCm"] = sku.WidthCm,
            ["heightCm"] = sku.HeightCm,
            ["dimensions"] = FormatDimensions(sku.LengthCm, sku.WidthCm, sku.HeightCm),
            ["remark"] = sku.Remark,
            ["weightUnit"] = "G",
            ["dimUnit"] = "CM",
            ["customerCode"] = customerCode,
            ["customerName"] = customerName,
            ["warehouseName"] = warehouseName,
            ["printTime"] = (printTime ?? DateTime.Now).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
            ["operatorName"] = operatorName
        };
    }

    /// <summary>
    /// 设计预览用 Mock PrintData。
    /// </summary>
    public static IReadOnlyDictionary<string, object?> BuildMock() =>
        new Dictionary<string, object?>(StringComparer.OrdinalIgnoreCase)
        {
            ["skuId"] = 1,
            ["skuCode"] = "SKU001",
            ["skuName"] = "T-Shirt",
            ["skuNameEn"] = "T-Shirt",
            ["barcode"] = "SKU001",
            ["skuImageUrl"] = null,
            ["unitPrice"] = 9.9m,
            ["exHsCode"] = "610910",
            ["imHsCode"] = "610910",
            ["declareElement"] = "棉质 T 恤",
            ["weightG"] = 200m,
            ["lengthCm"] = 30m,
            ["widthCm"] = 20m,
            ["heightCm"] = 2m,
            ["dimensions"] = "30×20×2",
            ["remark"] = null,
            ["weightUnit"] = "G",
            ["dimUnit"] = "CM",
            ["customerCode"] = "AF0A1",
            ["customerName"] = "Demo Customer",
            ["warehouseName"] = "SZ-01",
            ["printTime"] = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
            ["operatorName"] = "preview"
        };

    private static string? FormatDimensions(decimal? length, decimal? width, decimal? height)
    {
        if (length is null && width is null && height is null)
        {
            return null;
        }

        return $"{length ?? 0}×{width ?? 0}×{height ?? 0}";
    }
}