#pragma once
#include <string_view>

#include "global.h"

#include <SQLiteCpp/Statement.h>

#include <cstdint>
#include <filesystem>
#include <iosfwd>
#include <memory>
#include <optional>
#include <string>
#include <vector>

namespace External_Database_Utils {

struct Header_Csv_Resource_Config {
  std::string name;
  std::string cache_file_name;
  std::string download_url;
  std::string description;
  std::uint64_t update_interval_seconds{};
  std::vector<std::string> columns;
  std::vector<std::string> primary_key_columns;
  char delimiter = ',';
};

struct Schema_Only_Resource_Config {
  std::string name;
  std::string description;
  std::uint64_t update_interval_seconds{};
  std::string create_table_sql;
  std::vector<std::string> primary_key_columns;
};

std::string quote_identifier(std::string_view value);
std::string normalize_key(std::string_view value);
std::optional<std::string> normalize_field(std::string_view value);
void bind_optional(SQLite::Statement &statement, int index,
                   const std::optional<std::string> &value);
bool read_csv_row(std::istream &input, std::vector<std::string> &fields,
                  char delimiter);
std::string
make_upsert_sql(std::string_view table_name,
                const std::vector<std::string> &columns,
                const std::vector<std::string> &primary_key_columns);
void download_to_file(std::string_view url,
                      const std::filesystem::path &target_file);
void decompress_gzip(const std::filesystem::path &gzip_file,
                     const std::filesystem::path &target_file);
std::size_t import_header_csv(
    SQLite::Database &db, const std::filesystem::path &source_file,
    std::string_view table_name, const std::vector<std::string> &columns,
    const std::vector<std::string> &primary_key_columns, char delimiter = ',');

std::unique_ptr<External_Resources>
make_header_csv_resource(Header_Csv_Resource_Config config);
std::unique_ptr<External_Resources>
make_schema_only_resource(Schema_Only_Resource_Config config);
std::unique_ptr<External_Resources>
make_tar1090_aircraft_resource(std::string_view name, std::string_view description,
                               std::uint64_t update_interval_seconds);

} // namespace External_Database_Utils