feat: add orders

backend/app/models/orders.go

@@ -0,0 +1,168 @@
+package models
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"quyun/app/requests"
+	"quyun/database/fields"
+	"quyun/database/schemas/public/model"
+	"quyun/database/schemas/public/table"
+
+	. "github.com/go-jet/jet/v2/postgres"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+// @provider
+type ordersModel struct {
+	log *logrus.Entry `inject:"false"`
+}
+
+func (m *ordersModel) Prepare() error {
+	m.log = logrus.WithField("model", "ordersModel")
+	return nil
+}
+
+// GetByID returns an order by ID
+func (m *ordersModel) GetByID(ctx context.Context, id int64) (*model.Orders, error) {
+	tbl := table.Orders
+
+	stmt := tbl.
+		SELECT(tbl.AllColumns).
+		WHERE(
+			tbl.ID.EQ(Int64(id)),
+		)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var order model.Orders
+	err := stmt.QueryContext(ctx, db, &order)
+	if err != nil {
+		m.log.Errorf("error querying order by ID: %v", err)
+		return nil, err
+	}
+
+	return &order, nil
+}
+
+// BuildConditionWithKey builds the WHERE clause for order queries
+func (m *ordersModel) BuildConditionWithKey(orderNumber *string, userID *int64) BoolExpression {
+	tbl := table.Orders
+
+	cond := Bool(true)
+
+	if orderNumber != nil && *orderNumber != "" {
+		cond = cond.AND(
+			tbl.OrderNo.LIKE(String("%" + *orderNumber + "%")),
+		)
+	}
+
+	if userID != nil {
+		cond = cond.AND(
+			tbl.UserID.EQ(Int(*userID)),
+		)
+	}
+
+	return cond
+}
+
+// countByCondition counts orders matching the given condition
+func (m *ordersModel) countByCondition(ctx context.Context, expr BoolExpression) (int64, error) {
+	var cnt struct {
+		Cnt int64
+	}
+
+	tbl := table.Orders
+	stmt := SELECT(COUNT(tbl.ID).AS("cnt")).FROM(tbl).WHERE(expr)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	err := stmt.QueryContext(ctx, db, &cnt)
+	if err != nil {
+		m.log.Errorf("error counting orders: %v", err)
+		return 0, err
+	}
+
+	return cnt.Cnt, nil
+}
+
+// List returns a paginated list of orders
+func (m *ordersModel) List(ctx context.Context, pagination *requests.Pagination, cond BoolExpression) (*requests.Pager, error) {
+	pagination.Format()
+
+	tbl := table.Orders
+	stmt := tbl.
+		SELECT(tbl.AllColumns).
+		WHERE(cond).
+		ORDER_BY(tbl.ID.DESC()).
+		LIMIT(pagination.Limit).
+		OFFSET(pagination.Offset)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var orders []model.Orders = make([]model.Orders, 0)
+	err := stmt.QueryContext(ctx, db, &orders)
+	if err != nil {
+		m.log.Errorf("error querying orders: %v", err)
+		return nil, err
+	}
+
+	count, err := m.countByCondition(ctx, cond)
+	if err != nil {
+		m.log.Errorf("error getting order count: %v", err)
+		return nil, err
+	}
+
+	return &requests.Pager{
+		Items:      orders,
+		Total:      count,
+		Pagination: *pagination,
+	}, nil
+}
+
+// Create creates a new order
+func (m *ordersModel) Create(ctx context.Context, userId, postId int64) (*model.Orders, error) {
+	post, err := Posts.GetByID(ctx, postId)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to get post")
+	}
+
+	model := &model.Orders{}
+	model.CreatedAt = time.Now()
+	model.UpdatedAt = time.Now()
+	model.Status = fields.OrderStatusPending
+	model.OrderNo = fmt.Sprintf("%s", time.Now().Format("20060102150405"))
+	model.SubOrderNo = model.OrderNo
+	model.UserID = userId
+	model.PostID = postId
+	model.Meta = fields.ToJson(fields.OrderMeta{})
+	model.Price = post.Price
+	model.Discount = post.Discount
+
+	tbl := table.Orders
+	stmt := tbl.INSERT(tbl.MutableColumns).MODEL(model)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	if _, err := stmt.ExecContext(ctx, db); err != nil {
+		m.log.Errorf("error creating order: %v", err)
+		return nil, err
+	}
+	return model, nil
+}
+
+// DeleteByID soft deletes an order by ID
+func (m *ordersModel) SetStatus(ctx context.Context, orderNo string, status fields.OrderStatus) error {
+	tbl := table.Orders
+	stmt := tbl.
+		UPDATE(tbl.Status).
+		SET(status).
+		WHERE(
+			tbl.OrderNo.EQ(String(orderNo)),
+		)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	if _, err := stmt.ExecContext(ctx, db); err != nil {
+		m.log.Errorf("error set order status: %v", err)
+		return err
+	}
+	return nil
+}