74 lines
2.5 KiB
C#
74 lines
2.5 KiB
C#
using FluentValidation;
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using TakeoutSaaS.Application.App.Billings.Commands;
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namespace TakeoutSaaS.Application.App.Billings.Validators;
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/// <summary>
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/// 创建账单命令验证器。
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/// </summary>
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public sealed class CreateBillingCommandValidator : AbstractValidator<CreateBillingCommand>
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{
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public CreateBillingCommandValidator()
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{
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// 1. 租户 ID 必填
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RuleFor(x => x.TenantId)
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.GreaterThan(0)
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.WithMessage("租户 ID 必须大于 0");
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// 2. 账单类型必填
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RuleFor(x => x.BillingType)
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.IsInEnum()
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.WithMessage("账单类型无效");
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// 3. 应付金额必须大于 0
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RuleFor(x => x.AmountDue)
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.GreaterThan(0)
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.WithMessage("应付金额必须大于 0");
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// 4. 到期日必须是未来时间
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RuleFor(x => x.DueDate)
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.GreaterThan(DateTime.UtcNow)
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.WithMessage("到期日必须是未来时间");
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// 5. 账单明细至少包含一项
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RuleFor(x => x.LineItems)
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.NotEmpty()
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.WithMessage("账单明细不能为空");
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// 6. 账单明细项验证
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RuleForEach(x => x.LineItems)
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.ChildRules(lineItem =>
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{
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lineItem.RuleFor(x => x.ItemType)
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.NotEmpty()
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.WithMessage("账单明细类型不能为空")
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.MaximumLength(50)
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.WithMessage("账单明细类型不能超过 50 个字符");
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lineItem.RuleFor(x => x.Description)
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.NotEmpty()
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.WithMessage("账单明细描述不能为空")
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.MaximumLength(200)
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.WithMessage("账单明细描述不能超过 200 个字符");
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lineItem.RuleFor(x => x.Quantity)
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.GreaterThan(0)
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.WithMessage("账单明细数量必须大于 0");
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lineItem.RuleFor(x => x.UnitPrice)
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.GreaterThanOrEqualTo(0)
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.WithMessage("账单明细单价不能为负数");
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lineItem.RuleFor(x => x.Amount)
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.GreaterThanOrEqualTo(0)
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.WithMessage("账单明细金额不能为负数");
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});
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// 7. 备注长度限制（可选）
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RuleFor(x => x.Notes)
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.MaximumLength(500)
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.WithMessage("备注不能超过 500 个字符")
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.When(x => !string.IsNullOrWhiteSpace(x.Notes));
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}
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}
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