package model

import (
	"database/sql"
	"testing"
	"time"
)

func TestSavingsCategory_ProcessForJSON(t *testing.T) {
	t.Run("with deposit dates", func(t *testing.T) {
		c := &SavingsCategory{
			DepositStartDate: sql.NullTime{Time: time.Date(2025, 1, 1, 0, 0, 0, 0, time.UTC), Valid: true},
			DepositEndDate:   sql.NullTime{Time: time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC), Valid: true},
			CreditStartDate:  sql.NullTime{Time: time.Date(2025, 6, 1, 0, 0, 0, 0, time.UTC), Valid: true},
		}
		c.ProcessForJSON()

		if c.DepositStartStr == nil || *c.DepositStartStr != "2025-01-01" {
			t.Errorf("expected 2025-01-01, got %v", c.DepositStartStr)
		}
		if c.DepositEndStr == nil || *c.DepositEndStr != "2026-01-01" {
			t.Errorf("expected 2026-01-01, got %v", c.DepositEndStr)
		}
		if c.CreditStartStr == nil || *c.CreditStartStr != "2025-06-01" {
			t.Errorf("expected 2025-06-01, got %v", c.CreditStartStr)
		}
	})

	t.Run("without dates", func(t *testing.T) {
		c := &SavingsCategory{}
		c.ProcessForJSON()

		if c.DepositStartStr != nil {
			t.Error("expected nil deposit_start_date")
		}
	})
}

func TestSavingsRecurringPlan_ProcessForJSON(t *testing.T) {
	t.Run("with user_id", func(t *testing.T) {
		p := &SavingsRecurringPlan{
			UserID: sql.NullInt64{Int64: 42, Valid: true},
		}
		p.ProcessForJSON()

		if p.UserIDPtr == nil || *p.UserIDPtr != 42 {
			t.Errorf("expected 42, got %v", p.UserIDPtr)
		}
	})

	t.Run("without user_id", func(t *testing.T) {
		p := &SavingsRecurringPlan{
			UserID: sql.NullInt64{Valid: false},
		}
		p.ProcessForJSON()

		if p.UserIDPtr != nil {
			t.Error("expected nil user_id")
		}
	})
}