#pragma once
#include <vector>

// #include "db/Types.h"
#include "dog_segment/SegmentDefs.h"
// #include "knowhere/index/Index.h"
#include "query/GeneralQuery.h"

namespace milvus {
namespace dog_segment {
using engine::QueryResult;

int
TestABI();
class SegmentBase {
 public:
    // definitions
    enum class SegmentState {
        Invalid = 0,
        Open,   // able to insert data
        Closed  // able to build index
    };

 public:
    virtual ~SegmentBase() = default;
    // SegmentBase(std::shared_ptr<FieldsInfo> collection);

    virtual Status
    Insert(int64_t size, const uint64_t* primary_keys, const Timestamp* timestamps, const DogDataChunk& values) = 0;

    // TODO: add id into delete log, possibly bitmap
    virtual Status
    Delete(int64_t size, const uint64_t* primary_keys, const Timestamp* timestamps) = 0;

    // query contains metadata of
    virtual Status
    Query(const query::QueryPtr& query, Timestamp timestamp, QueryResult& results) = 0;

    // // THIS FUNCTION IS REMOVED
    // virtual Status
    // GetEntityByIds(Timestamp timestamp, const std::vector<Id>& ids, DataChunkPtr& results) = 0;

    // stop receive insert requests
    virtual Status
    Close() = 0;

    //    // to make all data inserted visible
    //    // maybe a no-op?
    //    virtual Status
    //    Flush(Timestamp timestamp) = 0;

    // BuildIndex With Paramaters, must with Frozen State
    // This function is atomic
    // NOTE: index_params contains serveral policies for several index
    virtual Status
    BuildIndex(std::shared_ptr<IndexConfig> index_params) = 0;

    // Remove Index
    virtual Status
    DropIndex(std::string_view field_name) = 0;

    virtual Status
    DropRawData(std::string_view field_name) = 0;

    virtual Status
    LoadRawData(std::string_view field_name, const char* blob, int64_t blob_size) = 0;

 public:
    virtual ssize_t
    get_row_count() const = 0;

    virtual SegmentState
    get_state() const = 0;

    virtual ssize_t
    get_deleted_count() const = 0;

 public:
    // getter and setter
    Timestamp get_time_begin() {
        return time_begin_;
    }
    void set_time_begin(Timestamp time_begin) {
        this->time_begin_ = time_begin;
    }
    Timestamp get_time_end() {
        return time_end_; 
    }
    void set_time_end(Timestamp time_end) {
        this->time_end_ = time_end;
    }
    uint64_t get_segment_id(uint64_t segment_id) {
        return segment_id_;
    }
    uint64_t set_segment_id(uint64_t segment_id) {
        this->segment_id_ = segment_id;
    }

 private:
    Timestamp time_begin_;
    Timestamp time_end_;
    uint64_t segment_id_;
};

using SegmentBasePtr = std::unique_ptr<SegmentBase>;

SegmentBasePtr CreateSegment(SchemaPtr& ptr);

}  // namespace engine
}  // namespace milvus