#include <string.h>
#include <limits.h>
#include "ucore/val_str.h"

const char *uc_val_2_str(unsigned int val, const struct UCValStr *array)
{
    const char *found = NULL;

    while (array->str) {
        if (array->val == val) {
            found = array->str;
            break;
        }
        array++;
    }

    return found;
}

const struct UCValStr *uc_val_2_str_vs(unsigned int val, const struct UCValStr *array)
{
    const struct UCValStr *found = NULL;

    while (array->str) {
        if (array->val == val) {
            found = array;
            break;
        }
        array++;
    }

    return found;
}

const char *uc_val_2_str_bs(unsigned int val, 
                          const struct UCValStr *array,
                          size_t array_len)
{
    size_t i = array_len;
    const struct UCValStr *start = array;
    const char *found = NULL;

    while (i != 0) {
        const struct UCValStr *curr;
        curr = &start[i / 2]; //middle 

        if (curr->val == val) {
            found = curr->str;
            break;
        }

        if (curr->val < val) {
            start = curr + 1; //right half
            i--;
        }

        i = i / 2; 
    }

    return found;
}

const char *uc_str_2_str(const char *restrict val, const struct UCStrStr *array)
{
    const char *found = NULL;

    while (array->val) {
        if (strcmp(val, array->val) == 0) {
            found = array->str;
            break;
        }
        array++;
    }

    return found;
}

const char *uc_str_2_str_ci(const char *restrict val, const struct UCStrStr *array)
{
    const char *found = NULL;

    while (array->val) {
        if (strcasecmp(val, array->val) == 0) {
            found = array->str;
            break;
        }
        array++;
    }

    return found;
}