#ifndef   oo_ObjDictionary_H__
#define   oo_ObjDictionary_H__

#include "ObjBase.h"

#include "../Self.h"

#include <string>
#include <typeinfo>
#include <map>

#include <cstdio>
#include <cstdlib>

namespace meow {

/*!
 * @brief 純粹把 \c std::map 包起來, 變成繼承自 ObjBase
 *
 * @author cathook
 */
template<class Key, class Value>
class ObjDictionary: public ObjBase {
private:
  struct Myself {
    std::map<Key, Value> dictionary_;
    Myself() {
    }
    ~Myself() {
    }
    Myself& copyFrom(Myself const& b) {
      dictionary_ = b.dictionary_;
      return *this;
    }
  };
  Self<Myself> const self;
public:
  ObjDictionary(): self(true) {
  }

  ObjDictionary(ObjDictionary const& d): self(false) {
    self.copyFrom(b.self);
  }

  ObjDictionary(std::map<Key, Value> const& d): self(true) {
    self()->dictionary_ = d;
  }

  ~ObjDictionary() {
  }

  ObjDictionary& copyFrom(ObjDictionary const& d) {
    self().copyFrom(d.self);
    return *this;
  }

  ObjDictionary& referenceFrom(ObjDictionary const& d) {
    self().referenceFrom(d.self);
    return *this;
  }

  size_t size() const {
    return self->dictionary_.size();
  }
  bool empty() const {
    return self->dictionary_.empty();
  }

  void clear() {
    self()->dictionary_.clear();
  }

  std::map<Key, Value>::const_iterator end() const {
    return self->dictionary_.end();
  }

  std::map<Key, Value>::iterator end() {
    return self()->dictionary_.end();
  }

  std::map<Key, Value>::const_iterator find(Key const& k) const {
    return self->dictionary_.find(k);
  }

  std::map<Key, Value>::iterator find(Key const& k) {
    return self()->dictionary_.find(k);
  }

  bool exist(Key const& k) const {
    return (find() != end());
  }

  void insert(Key const& k, Value const& v) {
    self->dictionary_.insert(std::pair<Key, Value>(k, v));
  }

  ObjDictionary& operator=(ObjDictionary const& a) {
    return copyFrom(a);
  }
  
  Value& operator[](Key const& k) {
    return self()->dictionary_[k];
  }

  bool write(FILE* f, bool bin, unsigned int fg) const {
    size_t sz = size();
    if (bin) {
      if (fwrite(&sz, sizeof(size_t), 1, f) < 1) return false;
    }
    else {
      if (fprintf(f, "%lu\n", sz) < 1) return false;
    }
    for (std::map<Key, Value>::const_iterator
         it = self->dictionary_.begin(); it != self->dictionary_.end(); ++it) {
      if (it->first .write(f, bin, fg) == false) return false;
      if (it->second.write(f, bin, fg) == false) return false;
    }
    return true;
  }

  bool read(FILE* f, bool bin, unsigned int fg) {
    size_t sz;
    if (bin) {
      if (fread(&sz, sizeof(size_t), 1, f) < 1) return false;
    }
    else {
      if (fscanf(f, "%lu\n", &sz) < 0) return false;
    }
    for (size_t i = 0; i < sz; i++) {
      Key   k;
      Value v;
      if (k.read(f, bin, fg) == false) return false;
      if (v.read(f, bin, fg) == false) return false;
      insert(k, v);
    }
    return true;
  }
  
  ObjBase* create() const {
    return new ObjDictionary();
  }
  
  ObjBase* copyFrom(ObjBase const* b) {
    return &(copyFrom(*(ObjDictionary*)b));
  }
  
  char const* ctype() const {
    return typeid(*this).name();
  }
  
  std::string type() const {
    return std::string(ctype());
  }
};

}

#endif // oo_ObjDictionary_H__