// © 2020 and later: Unicode, Inc. and others.

// License & terms of use: http://www.unicode.org/copyright.html

// charstrmap.h

// created: 2020sep01 Frank Yung-Fong Tang

#ifndef __CHARSTRMAP_H__

#define __CHARSTRMAP_H__

#include <utility>

#include "unicode/utypes.h"

#include "unicode/uobject.h"

#include "uhash.h"

U_NAMESPACE_BEGIN

/**

 * Map of const char * keys & values.

 * Stores pointers as is: Does not own/copy/adopt/release strings.

 */

class CharStringMap final : public UMemory {

public:

    /** Constructs an unusable non-map. */

    CharStringMap() : map(nullptr) {}

    CharStringMap(int32_t size, UErrorCode &errorCode) {

        map = uhash_openSize(uhash_hashChars, uhash_compareChars, uhash_compareChars,

                             size, &errorCode);

    }

    CharStringMap(CharStringMap &&other) noexcept : map(other.map) {

        other.map = nullptr;

    }

    CharStringMap(const CharStringMap &other) = delete;

    ~CharStringMap() {

        uhash_close(map);

    }

    CharStringMap &operator=(CharStringMap &&other) noexcept {

        map = other.map;

        other.map = nullptr;

        return *this;

    }

    CharStringMap &operator=(const CharStringMap &other) = delete;

    const char *get(const char *key) const { return static_cast<const char *>(uhash_get(map, key)); }

    void put(const char *key, const char *value, UErrorCode &errorCode) {

        uhash_put(map, const_cast<char *>(key), const_cast<char *>(value), &errorCode);

    }

private:

    UHashtable *map;

};

U_NAMESPACE_END

#endif  //  __CHARSTRMAP_H__