feat(payment): add complete payment system with multi-provider support

Add a full payment and subscription system supporting EasyPay (Alipay/WeChat),
Stripe, and direct Alipay/WeChat Pay providers with multi-instance load balancing.

backend/ent/paymentauditlog.go

@@ -0,0 +1,150 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/paymentauditlog"
+)
+
+// PaymentAuditLog is the model entity for the PaymentAuditLog schema.
+type PaymentAuditLog struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int64 `json:"id,omitempty"`
+	// OrderID holds the value of the "order_id" field.
+	OrderID string `json:"order_id,omitempty"`
+	// Action holds the value of the "action" field.
+	Action string `json:"action,omitempty"`
+	// Detail holds the value of the "detail" field.
+	Detail string `json:"detail,omitempty"`
+	// Operator holds the value of the "operator" field.
+	Operator string `json:"operator,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt    time.Time `json:"created_at,omitempty"`
+	selectValues sql.SelectValues
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*PaymentAuditLog) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case paymentauditlog.FieldID:
+			values[i] = new(sql.NullInt64)
+		case paymentauditlog.FieldOrderID, paymentauditlog.FieldAction, paymentauditlog.FieldDetail, paymentauditlog.FieldOperator:
+			values[i] = new(sql.NullString)
+		case paymentauditlog.FieldCreatedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the PaymentAuditLog fields.
+func (_m *PaymentAuditLog) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case paymentauditlog.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int64(value.Int64)
+		case paymentauditlog.FieldOrderID:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field order_id", values[i])
+			} else if value.Valid {
+				_m.OrderID = value.String
+			}
+		case paymentauditlog.FieldAction:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field action", values[i])
+			} else if value.Valid {
+				_m.Action = value.String
+			}
+		case paymentauditlog.FieldDetail:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field detail", values[i])
+			} else if value.Valid {
+				_m.Detail = value.String
+			}
+		case paymentauditlog.FieldOperator:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field operator", values[i])
+			} else if value.Valid {
+				_m.Operator = value.String
+			}
+		case paymentauditlog.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				_m.CreatedAt = value.Time
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the PaymentAuditLog.
+// This includes values selected through modifiers, order, etc.
+func (_m *PaymentAuditLog) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// Update returns a builder for updating this PaymentAuditLog.
+// Note that you need to call PaymentAuditLog.Unwrap() before calling this method if this PaymentAuditLog
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *PaymentAuditLog) Update() *PaymentAuditLogUpdateOne {
+	return NewPaymentAuditLogClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the PaymentAuditLog entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *PaymentAuditLog) Unwrap() *PaymentAuditLog {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: PaymentAuditLog is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *PaymentAuditLog) String() string {
+	var builder strings.Builder
+	builder.WriteString("PaymentAuditLog(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("order_id=")
+	builder.WriteString(_m.OrderID)
+	builder.WriteString(", ")
+	builder.WriteString("action=")
+	builder.WriteString(_m.Action)
+	builder.WriteString(", ")
+	builder.WriteString("detail=")
+	builder.WriteString(_m.Detail)
+	builder.WriteString(", ")
+	builder.WriteString("operator=")
+	builder.WriteString(_m.Operator)
+	builder.WriteString(", ")
+	builder.WriteString("created_at=")
+	builder.WriteString(_m.CreatedAt.Format(time.ANSIC))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// PaymentAuditLogs is a parsable slice of PaymentAuditLog.
+type PaymentAuditLogs []*PaymentAuditLog