add export excel all expenses

internal/modules/expenses/controllers/expense.controller.go

@@ -24,6 +24,8 @@ type ExpenseController struct {
 	ExpenseService service.ExpenseService
 }
 
+const expenseExcelExportFetchLimit = 100
+
 func NewExpenseController(expenseService service.ExpenseService) *ExpenseController {
 	return &ExpenseController{
 		ExpenseService: expenseService,
@@ -56,6 +58,14 @@ func (u *ExpenseController) GetAll(c *fiber.Ctx) error {
 		Search: c.Query("search", ""),
 	}
 
+	if isAllExpenseExcelExportRequest(c) {
+		allResults, err := u.getAllExpensesForExcel(c, query)
+		if err != nil {
+			return err
+		}
+		return exportExpenseListExcel(c, allResults)
+	}
+
 	if query.Page < 1 || query.Limit < 1 {
 		return fiber.NewError(fiber.StatusBadRequest, "page and limit must be greater than 0")
 	}
@@ -80,6 +90,33 @@ func (u *ExpenseController) GetAll(c *fiber.Ctx) error {
 		})
 }
 
+func (u *ExpenseController) getAllExpensesForExcel(c *fiber.Ctx, baseQuery *validation.Query) ([]dto.ExpenseListDTO, error) {
+	query := *baseQuery
+	query.Page = 1
+	query.Limit = expenseExcelExportFetchLimit
+
+	results := make([]dto.ExpenseListDTO, 0)
+	for {
+		pageResults, total, err := u.ExpenseService.GetAll(c, &query)
+		if err != nil {
+			return nil, err
+		}
+
+		if len(pageResults) == 0 || total == 0 {
+			break
+		}
+
+		results = append(results, pageResults...)
+		if int64(len(results)) >= total {
+			break
+		}
+
+		query.Page++
+	}
+
+	return results, nil
+}
+
 func (u *ExpenseController) GetOne(c *fiber.Ctx) error {
 	param := c.Params("id")