package upstream

import (
	"encoding/json"
	"os"
	"path/filepath"
	"testing"
)

func TestSnapshotAndKeys(t *testing.T) {
	s, err := Load(filepath.Join("..", "..", "build", "upstream"))
	if err != nil {
		t.Fatal(err)
	}
	if s.Lock.Tag != "v28.0.0" || len(s.Templates) != 13 || len(s.Locales) != 28 {
		t.Fatalf("unexpected baseline %s", s.Lock.Tag)
	}
	keys, err := ReferencedKeys(s)
	if err != nil {
		t.Fatal(err)
	}
	found := map[string]bool{}
	for _, k := range keys {
		found[k] = true
	}
	for _, k := range []string{"mail.issue.action.push_1", "mail.issue.action.push_n", "actions.runs.attempt"} {
		if !found[k] {
			t.Fatalf("missing key %s", k)
		}
	}
	delete(s.Locales["en-US"], "actions.runs.attempt")
	if ValidateKeys(s) == nil {
		t.Fatal("missing English key accepted")
	}
	if !validTag("v28.0.0") || validTag("v1.27.3") || validTag("v28.1.0-rc1") {
		t.Fatal("tag policy")
	}
	for _, p := range []string{"../x", "/x", "C:/x", "mail\\x"} {
		if SafePath(p) {
			t.Fatal("unsafe path accepted")
		}
	}
}

func TestSnapshotRejectsChecksumAndAdapterDrift(t *testing.T) {
	s, err := Load(filepath.Join("..", "..", "build", "upstream"))
	if err != nil {
		t.Fatal(err)
	}
	dir := t.TempDir()
	for p, b := range s.Files {
		target := filepath.Join(dir, filepath.FromSlash(p))
		if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(target, b, 0644); err != nil {
			t.Fatal(err)
		}
	}
	writeLock := func() {
		b, _ := json.Marshal(s.Lock)
		if err := os.WriteFile(filepath.Join(dir, "lock.json"), b, 0644); err != nil {
			t.Fatal(err)
		}
	}
	writeLock()
	p := "templates/mail/base/head.tmpl"
	if err := os.WriteFile(filepath.Join(dir, filepath.FromSlash(p)), []byte("changed"), 0644); err != nil {
		t.Fatal(err)
	}
	if _, err := Load(dir); err == nil {
		t.Fatal("checksum mismatch accepted")
	}
	if err := os.WriteFile(filepath.Join(dir, filepath.FromSlash(p)), s.Files[p], 0644); err != nil {
		t.Fatal(err)
	}
	p = "modules/translation/translation.go"
	if err := os.WriteFile(filepath.Join(dir, filepath.FromSlash(p)), []byte("changed"), 0644); err != nil {
		t.Fatal(err)
	}
	s.Lock.Files[p] = Digest([]byte("changed"))
	writeLock()
	if _, err := Load(dir); err == nil {
		t.Fatal("changed translation adapter accepted despite updated checksum")
	}
}