#include "core/File.hpp"

#include <stdio.h>

#include "ErrorSimulator.hpp"
#include "core/Logger.hpp"

static bool readOpenFile(FILE* file, Core::List<char>& f, const char* path) {
    if(FAIL_STEP || fseek(file, 0, SEEK_END)) {
        REPORT(LogLevel::ERROR, "cannot seek file end of '#'", path);
        return true;
    }
    long l = ftell(file);
    if(FAIL_STEP || l < 0) {
        REPORT(LogLevel::ERROR, "cannot tell file position of '#'", path);
        return true;
    }
    size_t size = static_cast<size_t>(l);
    f.resize(size + 1);
    if(FAIL_STEP || fseek(file, 0, SEEK_SET)) {
        REPORT(LogLevel::ERROR, "cannot seek file start of '#'", path);
        return true;
    }
    size_t read = fread(&f[0], 1, size, file);
    f.getLast() = 0;
    if(FAIL_STEP || read != size) {
        REPORT(
            LogLevel::ERROR, "expected to read # bytes from '#' but read #",
            size, path, read);
        return true;
    }
    return false;
}

bool Core::readFile(List<char>& f, const char* path) {
    FILE* file = fopen(path, "rb");
    if(file == nullptr) {
        REPORT(LogLevel::ERROR, "cannot read file '#'", path);
        return true;
    }
    bool r = readOpenFile(file, f, path);
    if(FAIL_STEP || fclose(file)) {
        REPORT(LogLevel::ERROR, "cannot close file '#'", path);
        r = true;
    }
    return r;
}