#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <ftw.h>
#include <unistd.h>

#include "fetch_src.h"
#include "fetch_git.h"
#include "vars.h"

static int remove_tree(
  const char *fpath, const struct stat *sb,
  int typeflag, struct FTW *ftwbuf
) {
    (void)sb;
    (void)ftwbuf;
    if (typeflag == FTW_F || typeflag == FTW_SL) {
        unlink(fpath);
    } else if (typeflag == FTW_DP) {
        rmdir(fpath);
    }
    return 0;
}

void fetch_src(Pkg pkg) {
    if (is_verbose) printf(
      "%s target source directory: %s\n",
      print_pkgit, pkg.src
    );
    if (file_exists(pkg.src)) {
        if (is_verbose) printf(
          "%s %s already exists. deleting...\n",
          print_pkgit, pkg.src
        );
        nftw(pkg.src, remove_tree, 64, FTW_DEPTH | FTW_PHYS);
    }
    if (strcmp(pkg.url, "") == 0) {
        if (is_verbose) printf(
          "%s creating directory %s...\n",
          print_pkgit, pkg.src
        );
        mkdir_p(pkg.src);
        return;
    }
    if (fetch_git(pkg) == 0) {
        if (is_verbose) printf(
          "%s cloned into %s\n",
          print_pkgit, pkg.src
        );
        return;
    }
    printf("%s no fetch methods worked.\n", print_error);
    exit(EXIT_FAILURE);
}