//go:build ship

package runtimeassets

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

func TestShipBundleSeedsOnlyMissingMutableFiles(t *testing.T) {
	for _, name := range []string{"resources/TechniqueRules.json", "res.json", "challenge_data.json", "scripts/hide_ui.lua"} {
		data, err := ReadFile(name)
		if err != nil || len(data) == 0 {
			t.Fatalf("embedded runtime file %s: bytes=%d err=%v", name, len(data), err)
		}
	}

	directory := t.TempDir()
	customConfig := []byte(`{"operator":"keep"}`)
	if err := os.WriteFile(filepath.Join(directory, "server.json"), customConfig, 0o600); err != nil {
		t.Fatal(err)
	}
	if err := seedMissingFiles(directory); err != nil {
		t.Fatal(err)
	}
	for _, name := range seedFiles {
		actual, err := os.ReadFile(filepath.Join(directory, name))
		if err != nil {
			t.Fatalf("seeded file %s: %v", name, err)
		}
		if name == "server.json" {
			if !bytes.Equal(actual, customConfig) {
				t.Fatal("existing operator config was replaced")
			}
			continue
		}
		expected, err := ReadFile(name)
		if err != nil {
			t.Fatalf("embedded seed %s: %v", name, err)
		}
		if !bytes.Equal(actual, expected) {
			t.Fatalf("seeded file %s differs from embedded version", name)
		}
	}
}