package e2e

import (
	"strings"
	"testing"
)

func TestRenderCapsAndNonASCIIPaths(t *testing.T) {
	e := newEnv(t, "MAX_RENDER_BYTES", "2000")
	admin := e.admin()
	e.createRepo(admin, "caps")
	e.seedRepo("caps", map[string]string{
		"README.md":      "# small\n",
		"docs/README.md": strings.Repeat("big readme line\n", 200),
	})
	small := e.seedRepo("caps", map[string]string{
		"dir/ä ö.txt":    "umlaut\n",
		"bin/bild ü.bin": "\x00\x01\x02binary",
	}, "non-ASCII names")

	t.Run("non-ASCII name links to a working blob", func(t *testing.T) {
		r := admin.get("/caps/tree/main/dir").mustStatus(200)
		if got := r.Text(".file-name a[href*='/blob/']"); got != "ä ö.txt" {
			t.Fatalf("tree name = %q", got)
		}
		admin.get(r.Attr(".file-name a[href*='/blob/']", "href")).mustStatus(200)
	})

	t.Run("commit diff shows unquoted paths and binary sizes", func(t *testing.T) {
		r := admin.get("/caps/commit/" + small).mustStatus(200)
		if !r.Contains("ä ö.txt") || !r.Contains("bild ü.bin") || r.Contains(`\303`) {
			t.Fatal("diff paths are missing or C-quoted")
		}
	})

	t.Run("oversized README shows a download notice", func(t *testing.T) {
		r := admin.get("/caps/tree/main/docs").mustStatus(200)
		if !r.Contains("README too large to display inline") || r.Contains("big readme line") {
			t.Fatal("oversized README was rendered")
		}
		if href := r.Attr(".readme-section .file-download-notice a", "href"); href != "/caps/raw/main/docs/README.md" {
			t.Fatalf("download href = %q", href)
		}
		if r := admin.get("/caps").mustStatus(200); !r.Has(".readme-section .markdown-body") {
			t.Fatal("small root README not rendered")
		}
	})

	t.Run("oversized commit diff is not rendered", func(t *testing.T) {
		big := e.seedRepo("caps", map[string]string{"big.txt": strings.Repeat("line\n", 1000)}, "big")
		r := admin.get("/caps/commit/" + big).mustStatus(200)
		if !r.Contains("Diff is too large to render inline") || r.Has(".diff-file") {
			t.Fatal("oversized diff was rendered")
		}
	})
}