package response

import (
	"encoding/json"
	"testing"
	"time"
)

func TestNormalizeTimeUsesSecondPrecisionCST(t *testing.T) {
	value := time.Date(2026, 7, 30, 9, 53, 58, 147355000, time.UTC)
	got := NormalizeTime(map[string]interface{}{
		"created_at": value,
		"nested": []interface{}{
			&value,
			json.RawMessage(`{"kept":true}`),
		},
	})

	raw, err := json.Marshal(got)
	if err != nil {
		t.Fatalf("marshal normalized response: %v", err)
	}
	text := string(raw)
	if !json.Valid(raw) {
		t.Fatalf("normalized response should stay valid json: %s", text)
	}
	if text != `{"created_at":"2026-07-30T17:53:58+08:00","nested":["2026-07-30T17:53:58+08:00",{"kept":true}]}` {
		t.Fatalf("unexpected normalized response: %s", text)
	}
}

func TestNormalizeTimeStructKeepsJSONTags(t *testing.T) {
	type sample struct {
		CreatedAt time.Time  `json:"created_at"`
		Optional  string     `json:"optional,omitempty"`
		Hidden    string     `json:"-"`
		DeletedAt *time.Time `json:"deleted_at,omitempty"`
	}

	value := time.Date(2026, 7, 30, 9, 53, 58, 147355000, time.UTC)
	got := NormalizeTime(sample{
		CreatedAt: value,
		Hidden:    "secret",
	})

	raw, err := json.Marshal(got)
	if err != nil {
		t.Fatalf("marshal normalized struct: %v", err)
	}
	text := string(raw)
	if text != `{"created_at":"2026-07-30T17:53:58+08:00"}` {
		t.Fatalf("unexpected normalized struct: %s", text)
	}
}