151 lines
6.6 KiB
Go
151 lines
6.6 KiB
Go
package models
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import (
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"time"
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"github.com/google/uuid"
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"gorm.io/gorm"
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)
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// ========== 共享发票数据模型 ==========
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// Invoice 发票模型
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type Invoice struct {
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ID string `gorm:"type:varchar(36);primaryKey" json:"id"`
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InvoiceNo string `gorm:"type:varchar(50);not null;uniqueIndex" json:"invoice_no"`
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OrderID string `gorm:"type:varchar(36);not null" json:"order_id"`
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OrderNo string `gorm:"type:varchar(50);not null;index" json:"order_no"`
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CustomerID string `gorm:"type:varchar(36);not null;index" json:"customer_id"`
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CuUserID string `gorm:"type:varchar(36);not null;index" json:"cu_user_id"`
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Amount float64 `gorm:"type:decimal(10,2);not null" json:"amount"`
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Status string `gorm:"type:varchar(20);not null;default:'pending';index" json:"status"`
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InvoiceType string `gorm:"type:varchar(20);not null" json:"invoice_type"`
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Title string `gorm:"type:varchar(200);not null" json:"title"`
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TaxpayerID *string `gorm:"type:varchar(50)" json:"taxpayer_id"`
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Content string `gorm:"type:varchar(200);not null" json:"content"`
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ReceiverEmail string `gorm:"type:varchar(255);not null" json:"receiver_email"`
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Remark *string `gorm:"type:varchar(1000)" json:"remark"`
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InvoiceFileURL *string `gorm:"type:varchar(500)" json:"invoice_file_url"`
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UploadedAt *time.Time `gorm:"" json:"uploaded_at"`
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UploadedBy *string `gorm:"type:varchar(36)" json:"uploaded_by"`
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IssuedAt *time.Time `gorm:"" json:"issued_at"`
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RejectReason *string `gorm:"type:varchar(500)" json:"reject_reason"`
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Suggestion *string `gorm:"type:varchar(500)" json:"suggestion"`
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RejectedAt *time.Time `gorm:"" json:"rejected_at"`
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RejectedBy *string `gorm:"type:varchar(36)" json:"rejected_by"`
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DownloadToken *string `gorm:"type:varchar(64)" json:"download_token"`
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CreatedAt time.Time `gorm:"not null;index" json:"created_at"`
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UpdatedAt time.Time `gorm:"not null" json:"updated_at"`
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DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
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}
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// TableName 指定表名
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func (Invoice) TableName() string {
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return "invoices"
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}
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// BeforeCreate 创建前自动设置时间戳和ID
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func (i *Invoice) BeforeCreate(tx *gorm.DB) error {
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// 生成UUID作为主键ID
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if i.ID == "" {
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i.ID = uuid.New().String()
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}
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// 设置时间戳
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now := time.Now()
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if i.CreatedAt.IsZero() {
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i.CreatedAt = now
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}
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if i.UpdatedAt.IsZero() {
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i.UpdatedAt = now
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}
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return nil
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}
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// BeforeUpdate 更新前自动设置时间戳
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func (i *Invoice) BeforeUpdate(tx *gorm.DB) error {
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i.UpdatedAt = time.Now()
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return nil
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}
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// ========== 发票枚举常量 ==========
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// 发票状态枚举
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const (
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InvoiceStatusPending = "pending" // 待处理
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InvoiceStatusIssued = "issued" // 已开票
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InvoiceStatusRejected = "rejected" // 已驳回
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)
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// 发票类型枚举
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const (
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InvoiceTypePersonal = "personal" // 个人
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InvoiceTypeEnterprise = "enterprise" // 企业普票
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InvoiceTypeVATSpecial = "vat_special" // 增值税专用发票
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)
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// ========== 共享响应结构体 ==========
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// InvoiceResponse 发票响应结构
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type InvoiceResponse struct {
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ID string `json:"id"` // 发票ID
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InvoiceNo string `json:"invoice_no"` // 发票申请号，格式如INV202601210123456789
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OrderID string `json:"order_id"` // 关联的订单ID
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OrderNo string `json:"order_no"` // 关联的订单号
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CustomerID string `json:"customer_id"` // 客户ID
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CuUserID string `json:"cu_user_id"` // 申请人客户用户ID
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Amount float64 `json:"amount"` // 发票金额，单位元，保留2位小数
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Status string `json:"status"` // 发票状态，pending-待处理/issued-已开票/rejected-已驳回
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StatusDisplay string `json:"status_display"` // 发票状态显示文本，根据当前语言显示
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InvoiceType string `json:"invoice_type"` // 发票类型，personal-个人/enterprise-企业普票/vat_special-增值税专用发票
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InvoiceTypeDisplay string `json:"invoice_type_display"` // 发票类型显示文本，根据当前语言显示
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Title string `json:"title"` // 发票抬头
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TaxpayerID *string `json:"taxpayer_id"` // 纳税人识别号，企业发票填写
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Content string `json:"content"` // 开票内容
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ReceiverEmail string `json:"receiver_email"` // 收票邮箱
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Remark *string `json:"remark"` // 备注信息
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InvoiceFileURL *string `json:"invoice_file_url"` // 发票文件下载URL，已开票后填写
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UploadedAt *time.Time `json:"uploaded_at"` // 发票文件上传时间
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UploadedBy *string `json:"uploaded_by"` // 发票文件上传人ID（管理员）
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IssuedAt *time.Time `json:"issued_at"` // 发票开票完成时间
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RejectReason *string `json:"reject_reason"` // 驳回原因，已驳回时填写
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Suggestion *string `json:"suggestion"` // 修改建议，已驳回时填写
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RejectedAt *time.Time `json:"rejected_at"` // 驳回时间
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RejectedBy *string `json:"rejected_by"` // 驳回人ID（管理员）
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DownloadToken *string `json:"download_token"` // 下载令牌，用于邮件链接下载
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CreatedAt time.Time `json:"created_at"` // 创建时间
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UpdatedAt time.Time `json:"updated_at"` // 更新时间
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}
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// ToResponse 转换为响应结构（不包含多语言显示字段）
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func (i *Invoice) ToResponse() *InvoiceResponse {
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return &InvoiceResponse{
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ID: i.ID,
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InvoiceNo: i.InvoiceNo,
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OrderID: i.OrderID,
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OrderNo: i.OrderNo,
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CustomerID: i.CustomerID,
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CuUserID: i.CuUserID,
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Amount: i.Amount,
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Status: i.Status,
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InvoiceType: i.InvoiceType,
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Title: i.Title,
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TaxpayerID: i.TaxpayerID,
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Content: i.Content,
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ReceiverEmail: i.ReceiverEmail,
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Remark: i.Remark,
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InvoiceFileURL: i.InvoiceFileURL,
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UploadedAt: i.UploadedAt,
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UploadedBy: i.UploadedBy,
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IssuedAt: i.IssuedAt,
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RejectReason: i.RejectReason,
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Suggestion: i.Suggestion,
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RejectedAt: i.RejectedAt,
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RejectedBy: i.RejectedBy,
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DownloadToken: i.DownloadToken,
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CreatedAt: i.CreatedAt,
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UpdatedAt: i.UpdatedAt,
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}
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}
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