"""Execute the actual shared-file transaction with injected disk failures.
Engine JSON/migration/menu checks are recorded separately in native evidence.
"""
from policy_harness import ROOT, body, run
p = ROOT/'addons/core/Scripts/Game/ERR/00_Core/ERR_ProfileConfig.c'
method = body(p, 'static bool Commit(')
for before, after in [
    ('map<string, string>', 'Map'), ('FileHandle file', 'FileHandle* file'),
    ('file.', 'file->'), ('FileIO.', 'FileIO::'), ('FileMode.', 'FileMode::'),
    ('Replication.', 'Replication::')]:
    method = method.replace(before, after)
run(r'''
#include <cassert>
#include <map>
#include <string>
using string=std::string;
using Map=std::map<string,string>;
const string PATH="Escapists.json";
std::map<string,string> files;
std::map<string,Map> documents;
int fault=0,serial=0;
namespace Replication {bool server=true;bool IsServer(){return server;}}
namespace FileMode {int WRITE=1;}
struct FileHandle {
 string path;
 void Write(string data){files[path]=fault==2?"CORRUPT":data;}
 void Close(){}
};
namespace FileIO {
 FileHandle* OpenFile(string path,int){static FileHandle h;h.path=path;return fault==1?nullptr:&h;}
 bool FileExists(string path){return files.count(path);}
 bool DeleteFile(string path){return files.erase(path);}
 bool CopyFile(string from,string to){
  if(!files.count(from))return false;
  if(to==PATH+".bak"&&fault==3)return false;
  files[to]=files[from];
  if(to==PATH+".bak"&&fault==4)files[to]="CORRUPT";
  if(from==PATH+".tmp"){
   if(fault==5){files[to]="PARTIAL";return false;}
   if(fault==6)files[to]="CORRUPT";
   if(fault==7){files[to]="WRONG";documents["WRONG"]={{"mission","wrong"}};}
  }
  return true;
 }
}
struct Store {
 static string Encode(Map values){string id="doc"+std::to_string(++serial);documents[id]=values;return id;}
 static bool Document(string path,Map& values){
  if(!files.count(path)||!documents.count(files[path]))return false;
  values=documents[files[path]];return true;
 }
 static bool Same(Map a,Map b){return a==b;}
''' + method + r'''
};
int main(){
 Map old={{"mission","old"},{"items","presets"},{"voice","url"}}, next=old,read;
 next["mission"]="new";
 for(int injected:{1,2,5,6,7}){
  files.clear();fault=injected;
  assert(!Store::Commit(next)&&!files.count(PATH)); // failed first save stays absent
 }
 for(int injected=1;injected<=7;injected++){
  files.clear();fault=0;assert(Store::Commit(old));
  fault=injected;assert(!Store::Commit(next));
  assert(Store::Document(PATH,read)&&read==old); // current valid config remains
  fault=0;assert(Store::Commit(next));
  assert(Store::Document(PATH,read)&&read==next);
 }
 for(int injected:{1,2,5,6,7}){
  files.clear();files[PATH]="CORRUPT";files[PATH+".bak"]=Store::Encode(old);
  fault=injected;assert(!Store::Commit(next));
  assert(Store::Document(PATH+".bak",read)&&read==old); // only good backup not replaced
  fault=0;assert(Store::Commit(next));
  assert(Store::Document(PATH,read)&&read==next);
 }
 files.clear();fault=0;assert(Store::Commit(old));assert(Store::Commit(next));
 assert(Store::Document(PATH+".bak",read)&&read==old);
 assert(!files.count(PATH+".tmp"));
 Replication::server=false;assert(!Store::Commit(old));
 assert(Store::Document(PATH,read)&&read==next);
}
''')
print('PASS: shared config transaction rejects client writes, preserves first-save/prior/fallback state across open, write, backup, partial-copy, readback and mismatch failures')