#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "strange_list.h"

void print_strange_list(const struct data *list, unsigned int size){

    if(!list) return ;

    for (unsigned int i = 0; i < size; i ++){
    
        if(list[i].type == INT_TYPE) printf("INT    : %i\n", list[i].value.i);
        else if (list[i].type == FLOAT_TYPE) printf("FLOAT  : %f\n", list[i].value.f);
        else printf("STRING : %s\n", list[i].value.s);
    }

}

int append_strange_list(struct data **list, unsigned int *size, struct data element){

    if(!list || size == 0) return -1;

   struct data *tmp = realloc(*list, (*size + 1) * sizeof(struct data));
   if(!tmp) return -2;

   *list = tmp;

   (*list)[*size ] = element;
   (*size) ++;

   return 0;
}

int remove_at_strange_list(struct data **list, unsigned int *size, int index){

    if(!list || *size == 0 || index < 0 || index > (int)*size) return -1;

    /*if(*size == 1 && index == 0){
        free(*list);
        *list = NULL;
        *size = 0;
        return 0;
        //free(list);
    }*/

    for (unsigned int i = index; i < *size; i ++){
        (*list)[i] = (*list)[i + 1];
    }
    (*size) --;
    if(*size > 0) *list = realloc(*list, (*size) * sizeof(struct data));
    else {
        free(*list);
        *list = NULL;
        //free(list);
    }

    return 0;
}

int list_strange_list(const char *filename, const struct data *list, unsigned int size){

    if(!filename || !list) return -1;

    FILE *file = fopen(filename, "w");
    if(!file) return -2;
    
    for (unsigned int i = 0; i < size; i ++){

        if(list[i].type == INT_TYPE) fprintf(file, "INT    : %i\n", list[i].value.i);
        else if (list[i].type == FLOAT_TYPE) fprintf(file, "FLOAT  : %f\n", list[i].value.f);
        else fprintf(file, "STRING : %s\n", list[i].value.s);
    
    }
    return 0;
}
/*
#include <stdio.h>
#include <stdlib.h>

int main(void)
{

    struct data *list = NULL;
    unsigned int size = 0;

    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "QUOI" } };

    //int err = append_strange_list(&list, &size, elt1);
    //printf("%d\n", err);

    //append_strange_list(&list, &size, elt2);
    //printf("%d\n", err);

    //append_strange_list(&list, NULL, elt1);
    //printf("%d\n", err);
    int err = remove_at_strange_list(&list, &size, 1);
    printf("%d\n", err);

    err = remove_at_strange_list(&list, &size, 42);
    printf("%d\n", err);

    print_strange_list(list, size);
    

    free(list);

 struct data *list = NULL;
    unsigned int size = 0;

    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "FEUR" } };

    append_strange_list(&list, &size, elt1);
    append_strange_list(&list, &size, elt2);
    append_strange_list(&list, &size, elt2);

    int err = remove_at_strange_list(&list, &size, 1);
    printf("%d\n", err);

    err = remove_at_strange_list(&list, &size, 42);
    printf("%d\n", err);

    print_strange_list(list, size);

    free(list);


struct data *list = NULL;
    unsigned int size = 0;

    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "welcome2u" } };

    append_strange_list(&list, &size, elt1);

    append_strange_list(&list, &size, elt2);

    int err = list_strange_list("/tmp/list", list, size);
    printf("%d\n", err);

    err = list_strange_list("/", list, size);
    printf("%d\n", err);

    free(list);
}*/