package httpx_test

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

	"git.asio.asia/nixevol/NixMsg/internal/httpx"
)

func TestSPAFallbackAndMissingAsset(t *testing.T) {
	fsys := fstest.MapFS{
		"index.html":    &fstest.MapFile{Data: []byte("<html>app</html>")},
		"assets/app.js": &fstest.MapFile{Data: []byte("console.log(1)")},
	}
	h := httpx.SPA(fsys)

	t.Run("frontend route", func(t *testing.T) {
		res := httptest.NewRecorder()
		h.ServeHTTP(res, httptest.NewRequest(http.MethodGet, "/endpoints", nil))
		if res.Code != http.StatusOK {
			t.Fatalf("status=%d", res.Code)
		}
		ct := res.Header().Get("Content-Type")
		if !strings.Contains(ct, "text/html") {
			t.Fatalf("content-type=%q", ct)
		}
		if !strings.Contains(res.Body.String(), "app") {
			t.Fatalf("body=%q", res.Body.String())
		}
		if res.Header().Get("Cache-Control") != "no-cache" {
			t.Fatalf("cache-control=%q", res.Header().Get("Cache-Control"))
		}
	})

	t.Run("missing js", func(t *testing.T) {
		res := httptest.NewRecorder()
		h.ServeHTTP(res, httptest.NewRequest(http.MethodGet, "/assets/nope.js", nil))
		if res.Code != http.StatusNotFound {
			t.Fatalf("status=%d", res.Code)
		}
	})

	t.Run("directory no listing", func(t *testing.T) {
		res := httptest.NewRecorder()
		h.ServeHTTP(res, httptest.NewRequest(http.MethodGet, "/assets/", nil))
		if res.Code != http.StatusOK {
			t.Fatalf("status=%d", res.Code)
		}
		if strings.Contains(res.Body.String(), "app.js") {
			t.Fatal("directory listing leaked")
		}
		if !strings.Contains(res.Body.String(), "app") {
			t.Fatalf("want spa index, body=%q", res.Body.String())
		}
	})

	t.Run("existing file", func(t *testing.T) {
		res := httptest.NewRecorder()
		h.ServeHTTP(res, httptest.NewRequest(http.MethodGet, "/assets/app.js", nil))
		if res.Code != http.StatusOK {
			t.Fatalf("status=%d", res.Code)
		}
		if res.Body.String() != "console.log(1)" {
			t.Fatalf("body=%q", res.Body.String())
		}
	})
}