package health_test

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"github.com/veylant/ia-gateway/internal/health"
)

func TestHandler_Returns200WithJSONBody(t *testing.T) {
	req := httptest.NewRequest(http.MethodGet, "/healthz", nil)
	rec := httptest.NewRecorder()

	health.Handler(rec, req)

	assert.Equal(t, http.StatusOK, rec.Code)
	assert.Equal(t, "application/json", rec.Header().Get("Content-Type"))

	var body struct {
		Status    string `json:"status"`
		Timestamp string `json:"timestamp"`
	}
	require.NoError(t, json.NewDecoder(rec.Body).Decode(&body))
	assert.Equal(t, "ok", body.Status)
	assert.NotEmpty(t, body.Timestamp)
}