#include "highscores.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int aantal;
Score_Entry* scores;
int veranderd=0;

void load_highscores()
{
	FILE* file=fopen(HIGHSCORE_FILE,"r");
	if(file!=NULL){
		fseek(file,0,SEEK_END);
		aantal=ftell(file)/sizeof(Score_Entry);
		fseek(file,0,SEEK_SET);
		if(aantal<MAX_HIGHSCORE_ENTRIES){
			scores=(Score_Entry*)calloc(aantal+1,sizeof(Score_Entry));
			fread(scores,sizeof(Score_Entry),aantal+1,file);
		}
		else if(aantal==5){
			scores=(Score_Entry*)calloc(aantal,sizeof(Score_Entry));
			fread(scores,sizeof(Score_Entry),aantal,file);
		}
		fclose(file);
	}
	else{
		aantal=0;
		scores=(Score_Entry*)calloc(1,sizeof(Score_Entry));
	}
}

void check_highscore_entry(int score){
	if(aantal<MAX_HIGHSCORE_ENTRIES){
		aantal++;
		veranderd=1;
	}
	else if(score>scores[MAX_HIGHSCORE_ENTRIES-1].score){
		veranderd=1;
	}
	if(veranderd){
		int i=1;
		const time_t tijd=time(NULL);
		strftime(scores[aantal-1].datum,20,"%d/%m/%Y",localtime(&tijd));
		printf("Naam?\n");
		scanf("%s",scores[aantal-1].naam);
		scores[aantal-1].score=score;
		while(scores[aantal-i].score>scores[aantal-(i+1)].score&&(i+1<=aantal)){
			Score_Entry temp=scores[aantal-(i+1)];
			scores[aantal-(i+1)]=scores[aantal-i];
			scores[aantal-i]=temp;
			i++;
		}
	}
}

void display_highscores()
{
	int i;
	for(i=0;i<aantal;i++){
		printf("%d, %s %s\n",scores[i].score,scores[i].naam,scores[i].datum);
	}
}

void save_highscores()
{
	if(veranderd){
		FILE* file=fopen(HIGHSCORE_FILE,"w");
		fwrite(scores,sizeof(Score_Entry),aantal,file);
		veranderd=0;
		fclose(file);
		free(scores);
	}
}