#include "village.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int add_villager(struct villager **village, unsigned int *population, struct villager villager){

    if(!village || population == 0) return  -1;
    
    struct villager *tmp = realloc(*village, (*population + 1) * sizeof(struct villager));
    if(!tmp) return -2;

    *village = tmp;
    (*village)[*population] = villager;
    (*population) ++;
    
    return 0;

}

int remove_villager(struct villager **village, unsigned int *population, char *name){

    if(!village || population == 0 || !name) return -1;
    
    if(*population == 1){

        if(!strcmp(village[0]->name, name)){

            free(*village);
            *village = NULL;
            *population = 0;
        }
        return 0;
    }
    
    size_t index = 0;
    int found = 0;
    while(index < *population){
        
        if(found != 0){
            (*village)[index - 1] = (*village)[index];
        }
        
        if(!strcmp((*village)[index].name, name)) found ++;

        index ++;
    }

    *population -= found;
    if(*population > 0) *village = realloc(*village, (*population) * sizeof(struct villager));
    else {
        free(*village);
        *village = NULL;
    }
    return 0;
    
}

void clear_village(struct villager **village, unsigned int *population){

    if(!village || population == 0) return ;

    /*for(size_t i = 0; i < *population; i ++){
        
        free(village[i]);
        village[i] = NULL;
    }
    //free(village);
    */

    for (unsigned int i = 0; i < *population; i++){
        village[i] = NULL;
    }
    *population = 0;

}
/*
int main(void)
{

        struct villager *village = NULL;
    unsigned int population = 0;

    struct villager tom_nook = {
        .name = "Tom Nook",
        .age = 99,
        .job = SELLER,
        .favorite_quote = "It's 42 bells",
    };

    add_villager(&village, &population, tom_nook);

    struct villager marie = {
        .name = "Marie",
        .age = 23,
        .job = WORKER,
        .favorite_quote = "It's so expensive!",
    };

    add_villager(&village, &population, marie);

    clear_village(&village, &population);

    for (unsigned int i = 0; i < population; i++)
    {
        printf("I'm %s (%d)\n", village[i].name, village[i].age);
    }

    printf("%p\n", village);
    printf("%u\n", population);
}
*/