package standard

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

	"modernc.org/quickjs"

	"reichard.io/poiesis/internal/builtin"

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

func TestFetchReturnsPromise(t *testing.T) {
	vm, err := quickjs.NewVM()
	require.NoError(t, err)
	defer func() {
		_ = vm.Close()
	}()
	vm.SetCanBlock(true)

	builtin.RegisterBuiltins(vm)

	result, err := vm.Eval(`fetch({input: "https://example.com"})`, quickjs.EvalGlobal)
	require.NoError(t, err)
	assert.NotNil(t, result)
}

func TestFetchAsyncAwait(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		w.WriteHeader(http.StatusOK)
		_, _ = w.Write([]byte(`{"status":"ok"}`))
	}))
	defer server.Close()

	vm, err := quickjs.NewVM()
	require.NoError(t, err)
	defer func() {
		_ = vm.Close()
	}()
	vm.SetCanBlock(true)

	builtin.RegisterBuiltins(vm)

	result, err := vm.Eval(`fetch({input: "`+server.URL+`"})`, quickjs.EvalGlobal)
	require.NoError(t, err)

	if obj, ok := result.(*quickjs.Object); ok {
		var arr []any
		if err := obj.Into(&arr); err == nil && len(arr) > 0 {
			if response, ok := arr[0].(map[string]any); ok {
				assert.True(t, response["ok"].(bool))
			}
		}
	}
}