package main

import (
	"bytes"
	"os"
	"path/filepath"
	"regexp"
	"testing"

	"git.golem15.com/golem15/summercms/internal/docsite"
	"git.golem15.com/golem15/summercms/modules/bonfire"
)

const repoRoot = "../.."

// TestDocsTree fails with every problem line in the real docs tree.
func TestDocsTree(t *testing.T) {
	problems, err := docsite.Check(docsite.Options{Root: repoRoot})
	if err != nil {
		t.Fatal(err)
	}
	for _, p := range problems {
		t.Error(p.String())
	}
}

// buildRealTree runs docs:build on the real tree into a temp dir and returns
// the output dir and the command output.
func buildRealTree(t *testing.T) (string, string) {
	t.Helper()
	out := filepath.Join(t.TempDir(), "site")
	var buf bytes.Buffer
	root, err := bonfire.NewRoot("summer", toolCommands(), &buf)
	if err != nil {
		t.Fatal(err)
	}
	root.SetArgs([]string{"docs:build", "--root", repoRoot, "--out", out})
	if err := root.Execute(); err != nil {
		t.Fatalf("docs:build: %v\n%s", err, buf.String())
	}
	return out, buf.String()
}

func TestDocsBuildRealTree(t *testing.T) {
	out, stdout := buildRealTree(t)
	if !regexp.MustCompile(`docs:build: wrote \d+ pages to `).MatchString(stdout) {
		t.Fatalf("output = %q, want a wrote-pages line", stdout)
	}
	for _, name := range []string{
		"index.html", "index.md",
		"setup/installation.html", "setup/installation.md",
		"llms.txt", "llms-full.txt", "search-index.json",
		"assets/site.css", docsite.MarkerFile,
	} {
		if _, err := os.Stat(filepath.Join(out, name)); err != nil {
			t.Errorf("missing %s: %v", name, err)
		}
	}
}