#pragma once

#include "c_entity.h"
#include "c_javaset.h"
#include "c_minecraft.h"

class c_world {
   public:
    c_world() {}
    c_world(jobject javaclass) { java_class = javaclass; }

    int get_entities() {
        c_javaset* set = new c_javaset;
        jfieldID ent_list = minecraft->m_jenv->GetFieldID(
            minecraft->m_jenv->GetObjectClass(java_class), "c",
            "Ljava/util/Set;");
        return set->size(
            minecraft->m_jenv->GetObjectField(java_class, ent_list));
    }

    // this is done incorrectly
    // http://www.minecraftforge.net/forum/topic/5782-getting-a-world-object-and-player-list/
    int get_player_entities() {
        c_javaset* set = new c_javaset;
        jfieldID ent_list = minecraft->m_jenv->GetFieldID(
            minecraft->m_jenv->GetObjectClass(java_class), "j",
            "Ljava/util/Set;");
        return set->size(
            minecraft->m_jenv->GetObjectField(java_class, ent_list));
    }

    c_entity* get_entity(int i) {
        c_javaset* set = new c_javaset;
        jfieldID ent_list = minecraft->m_jenv->GetFieldID(
            minecraft->m_jenv->GetObjectClass(java_class), "c",
            "Ljava/util/Set;");
        return new c_entity(set->get(
            minecraft->m_jenv->GetObjectField(java_class, ent_list), i));
    }

    void set_time(jobject java_class, jlong time) {
        jmethodID set_time = minecraft->m_jenv->GetMethodID(
            minecraft->m_jenv->GetObjectClass(java_class), "b", "(J)V");
        minecraft->m_jenv->CallLongMethod(java_class, set_time, time);
    }

    bool is_valid() { return java_class; }

   private:
    jobject java_class;
};

extern c_world* world;