#include <stdlib.h>
#include <string.h>

#include "utils/Functions.h"

void fInit(Function* f, const char* name, int line) {
    f->name = name;
    f->arguments = 0;
    f->returnType = dtVoid();
    f->address = -1;
    f->size = 0;
    f->line = line;
}

bool fAddArgument(Function* f, DataType type) {
    if(f->arguments >= FUNCTION_ARGUMENTS) {
        return true;
    }
    f->size += dtGetSize(type);
    f->argumentTypes[f->arguments++] = type;
    return false;
}

bool fCompare(Function* a, Function* b) {
    if(a->arguments != b->arguments) {
        return false;
    }
    for(int i = 0; i < a->arguments; i++) {
        if(!dtCompare(a->argumentTypes[i], b->argumentTypes[i])) {
            return false;
        }
    }
    return strcmp(a->name, b->name) == 0;
}

void fsInit(Functions* fs) {
    fs->capacity = 16;
    fs->entries = 0;
    fs->data = malloc(sizeof(Function) * fs->capacity);
}

void fsDelete(Functions* fs) {
    free(fs->data);
}

Function* fsSearch(Functions* fs, Function* f) {
    for(int i = 0; i < fs->entries; i++) {
        if(fCompare(fs->data + i, f)) {
            return fs->data + i;
        }
    }
    return NULL;
}

void fsAdd(Functions* fs, Function* f) {
    if(fs->entries >= fs->capacity) {
        fs->capacity *= 2;
        fs->data = realloc(fs->data, sizeof(Function) * fs->capacity);
    }
    fs->data[fs->entries++] = *f;
}