package mirror

import (
	"context"
	"net/http/httptest"
	"os"
	"strings"
	"testing"

	"gitea.mynodes.xyz/ilker/llmgw/internal/tlsconf"
)

func TestAFileSentToTheMirrorIsKeptWithItsChecksumAndNeverReplaced(t *testing.T) {
	root := t.TempDir()
	srv := httptest.NewServer(NewAPI(NewManager(root, nil), "http://mirror:8081").Handler())
	defer srv.Close()
	c, err := NewClient(srv.URL, tlsconf.Config{}, 0)
	if err != nil {
		t.Fatal(err)
	}
	ctx := context.Background()
	got, err := c.Upload(ctx, "politika-tonu", "train-1", "politika-tonu.gguf", []byte("GGUF adapter"), "trained by job train-1")
	if err != nil {
		t.Fatal(err)
	}
	if got.URL != "http://mirror:8081/politika-tonu/train-1/politika-tonu.gguf" || got.Status.BytesTotal != 12 {
		t.Errorf("answered %+v", got)
	}
	e := Entry{Model: "politika-tonu", Version: "train-1", File: "politika-tonu.gguf"}
	if b, _ := os.ReadFile(e.Path(root)); string(b) != "GGUF adapter" {
		t.Errorf("kept %q", b)
	}
	if b, _ := os.ReadFile(sourcePath(e.Path(root))); !strings.Contains(string(b), "train-1") {
		t.Errorf("source %q", b)
	}
	if _, err := os.Stat(checksumPath(e.Path(root))); err != nil {
		t.Errorf("no checksum: %v", err)
	}
	if _, err := c.Upload(ctx, "politika-tonu", "train-1", "politika-tonu.gguf", []byte("other"), "x"); err == nil {
		t.Error("an existing version was replaced")
	}
	if _, err := c.Upload(ctx, "../etc", "v", "f", []byte("x"), "x"); err == nil {
		t.Error("a path outside the mirror was taken")
	}
}