#pragma once

#ifdef SIMDJSON_COMPETITION_YYJSON

#include "partial_tweets.h"

namespace partial_tweets {

struct yyjson_base {
  using StringType=std::string_view;

  simdjson_inline std::string_view get_string_view(yyjson_val *obj, std::string_view key) {
    auto val = yyjson_obj_getn(obj, key.data(), key.length());
    if (!yyjson_is_str(val)) { throw "field is not uint64 or null!"; }
    return { yyjson_get_str(val), yyjson_get_len(val) };
  }
  simdjson_inline uint64_t get_uint64(yyjson_val *obj, std::string_view key) {
    auto val = yyjson_obj_getn(obj, key.data(), key.length());
    if (!yyjson_is_uint(val)) { throw "field is not uint64 or null!"; }
    return yyjson_get_uint(val);
  }
  simdjson_inline uint64_t get_nullable_uint64(yyjson_val *obj, std::string_view key) {
    auto val = yyjson_obj_getn(obj, key.data(), key.length());
    if (!yyjson_is_uint(val)) { }
    auto type = yyjson_get_type(val);
    if (type != YYJSON_TYPE_NUM && type != YYJSON_TYPE_NULL ) { throw "field is not uint64 or null!"; }
    return yyjson_get_uint(val);
  }
  simdjson_inline partial_tweets::twitter_user<std::string_view> get_user(yyjson_val *obj, std::string_view key) {
    auto user = yyjson_obj_getn(obj, key.data(), key.length());
    if (!yyjson_is_obj(user)) { throw "missing twitter user field!"; }
    return { get_uint64(user, "id"), get_string_view(user, "screen_name") };
  }

  bool run(yyjson_doc *doc, std::vector<tweet<std::string_view>> &result) {
    if (!doc) { return false; }
    yyjson_val *root = yyjson_doc_get_root(doc);
    if (!yyjson_is_obj(root)) { return false; }
    yyjson_val *statuses = yyjson_obj_get(root, "statuses");
    if (!yyjson_is_arr(statuses)) { return false; }

    // Walk the document, parsing the tweets as we go
    size_t tweet_idx, tweets_max;
    yyjson_val *tweet;
    yyjson_arr_foreach(statuses, tweet_idx, tweets_max, tweet) {
      if (!yyjson_is_obj(tweet)) { return false; }
      // TODO these can't actually handle errors
      result.emplace_back(partial_tweets::tweet<std::string_view>{
        get_string_view(tweet, "created_at"),
        get_uint64     (tweet, "id"),
        get_string_view(tweet, "text"),
        get_nullable_uint64     (tweet, "in_reply_to_status_id"),
        get_user       (tweet, "user"),
        get_uint64     (tweet, "retweet_count"),
        get_uint64     (tweet, "favorite_count")
      });
    }

    return true;
  }
};

struct yyjson : yyjson_base {
  bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
    yyjson_doc *doc = yyjson_read(json.data(), json.size(), 0);
    bool b = yyjson_base::run(doc, result);
    yyjson_doc_free(doc);
    return b;
  }
};
BENCHMARK_TEMPLATE(partial_tweets, yyjson)->UseManualTime();

#if SIMDJSON_COMPETITION_ONDEMAND_INSITU
struct yyjson_insitu : yyjson_base {
  bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
    yyjson_doc *doc = yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0);
    bool b = yyjson_base::run(doc, result);
    yyjson_doc_free(doc);
    return b;
  }
};
BENCHMARK_TEMPLATE(partial_tweets, yyjson_insitu)->UseManualTime();
#endif // SIMDJSON_COMPETITION_ONDEMAND_INSITU

} // namespace partial_tweets

#endif // SIMDJSON_COMPETITION_YYJSON
