// synchronously process the request, fill up responseBuffer, and return statusCode
public int Process(HttpCtx ctx, int id)
{
var limit = 0;
if (!Mapper.ExtIdToIntId(id, out id))
{
return(404); // no mapping exists
}
var finder = new Finder(store.All);
finder.AndBitmap(store.PremiumFreeMale); // placeholder, to be replaced for each category
var flags = new RecommendQueryMask();
var startTime = Stats.Watch.Elapsed;
foreach (var query in ctx.Params)
{
var value = query.Value;
if (value.IsEmpty)
{
return(400);
}
if (query.Key == "query_id")
{
} // ignore
else
if (query.Key == "limit")
{
if (!value.TryToInt(out limit))
{
return(400);
}
}
else
if (query.Key == "country")
{
if (value.IsEmpty)
{
return(400);
}
if (store.Countries.TryGetValue(value, out IRange countryInd))
{
finder.AndBitmap(countryInd as BitMap);
}
else
{
finder.AndBitmap(null);
}
flags |= RecommendQueryMask.Country;
}
else
if (query.Key == "city")
{
if (value.IsEmpty)
{
return(400);
}
if (store.Cities.TryGetValue(value, out var cityBm))
{
finder.AndBitmap(cityBm as BitMap);
}
else
{
finder.AndBitmap(null);
}
flags |= RecommendQueryMask.City;
}
else // all other parameters are invalid
{
return(400);
}
}
if (limit <= 0)
{
return(400);
}
var acct = store.Accounts[id];
if (acct.IsEmpty())
{
return(404); // no such user
}
if (acct.InterestMask.Count == 0)
{
return(211); // no interests => zero compatibility
}
if (finder.DefaultBitmap == null || acct.InterestMask.Count == 0) // shortcut
{
return(211); // empty accounts
}
#if false
finder.AddCondition(i => acct.InterestMask.Any(store.Accounts[i].InterestMask), 0);
#else
for (int i = 1; i < BitMap96.MAX_BITS; i++)
{
if (acct.InterestMask.IsSet(i))
{
finder.OrBitmap(0, store.Interests[i] as BitMap);
}
}
#endif
var findContext = new FindContext(store, finder, acct, limit);
for (int category = 1; category <= 6; category++)
{
if (findContext.Select(category) >= limit)
{
break;
}
}
// compose the response
var sb = new AStringBuilder(ctx.Buffer, ctx.ResponseBodyStart);
sb.Append("{\"accounts\":[");
bool firstEl = true;
// pick first limit users from selected
foreach (var kv in findContext.Selected)
{
var i = kv.Value;
var a = store.Accounts[i];
if (firstEl)
{
firstEl = false;
}
else
{
sb.Append(',');
}
// id (always present)
sb.Append("{\"id\":").Append(Mapper.IntIdToExtId(i)).Append(',');
// email
sb.Append("\"email\":");
if (a.Email == null)
{
sb.Append("null");
}
else
{
sb.Append('"');
store.emailFromBuffer(a.Email, sb);
sb.Append("\",");
}
// status
sb.Append("\"status\":\"");
if (a.IsFree())
{
sb.Append(DtoAccount.s_Free);
}
else
if (a.IsTaken())
{
sb.Append(DtoAccount.s_Taken);
}
else
{
sb.Append(DtoAccount.s_Complicated);
}
sb.Append("\",");
// fname
if (a.FNameIdx > 0)
{
sb.Append("\"fname\":\"").Append(store.Fnames[a.FNameIdx].AName).Append("\",");
}
// sname
if (a.SNameIdx > 0)
{
sb.Append("\"sname\":\"").Append(store.Snames[a.SNameIdx].AName).Append("\",");
}
// premium
if (store.PremiumYes[i])
{
sb.Append("\"premium\":{\"start\":").Append(a.PStart).Append(",\"finish\":").Append(a.PFinish).Append("},");
}
// birth
sb.Append("\"birth\":").Append(a.Birth).Append('}');
}
;
// finalize the output
sb.Append("]}");
ctx.ResponseBodyLength = sb.Count;
var stopTime = Stats.Watch.Elapsed;
ctx.ContextType = "GetRecommend";
return(200);
}