// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
 * Ceph - scalable distributed file system
 *
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software
 * Foundation.  See file COPYING.
 *
 */

#include <stdint.h>
#include <tuple>
#include <iostream>

#include "include/rados/librgw.h"
#include "include/rados/rgw_file.h"

#include "gtest/gtest.h"
#include "common/ceph_argparse.h"
#include "common/debug.h"
#include "global/global_init.h"

#define dout_subsys ceph_subsys_rgw

namespace {
  librgw_t rgw = nullptr;
  string userid("testuser");
  string access_key("");
  string secret_key("");
  struct rgw_fs *fs = nullptr;

  uint32_t owner_uid = 867;
  uint32_t owner_gid = 5309;
  uint32_t create_mask = RGW_SETATTR_UID | RGW_SETATTR_GID | RGW_SETATTR_MODE;

  bool do_create = false;
  bool do_delete = false;
  bool do_multi = false;
  int multi_cnt = 10;

  string bucket_name = "sorry_dave";

  struct {
    int argc;
    char **argv;
  } saved_args;
}

TEST(LibRGW, INIT) {
  int ret = librgw_create(&rgw, saved_args.argc, saved_args.argv);
  ASSERT_EQ(ret, 0);
  ASSERT_NE(rgw, nullptr);
}

TEST(LibRGW, MOUNT) {
  int ret = rgw_mount2(rgw, userid.c_str(), access_key.c_str(),
                       secret_key.c_str(), "/", &fs, RGW_MOUNT_FLAG_NONE);
  ASSERT_EQ(ret, 0);
  ASSERT_NE(fs, nullptr);
}

TEST(LibRGW, CREATE_BUCKET) {
  if (do_create) {
    struct stat st;
    struct rgw_file_handle *fh;

    st.st_uid = owner_uid;
    st.st_gid = owner_gid;
    st.st_mode = 755;

    int ret = rgw_mkdir(fs, fs->root_fh, bucket_name.c_str(), &st, create_mask,
			&fh, RGW_MKDIR_FLAG_NONE);
    ASSERT_EQ(ret, 0);
  }
}

TEST(LibRGW, DELETE_BUCKET) {
  if (do_delete) {
    int ret = rgw_unlink(fs, fs->root_fh, bucket_name.c_str(),
			 RGW_UNLINK_FLAG_NONE);
    ASSERT_EQ(ret, 0);
  }
}

TEST(LibRGW, CREATE_BUCKET_MULTI) {
  if (do_multi) {
    int ret;
    struct stat st;
    struct rgw_file_handle *fh;

    st.st_uid = owner_uid;
    st.st_gid = owner_gid;
    st.st_mode = 755;

    for (int ix = 0; ix < multi_cnt; ++ix) {
      string bn = bucket_name;
      bn += to_string(ix);
      ret = rgw_mkdir(fs, fs->root_fh, bn.c_str(), &st, create_mask, &fh,
		      RGW_MKDIR_FLAG_NONE);
      ASSERT_EQ(ret, 0);
      std::cout << "created: " << bn << std::endl;
    }
  }
}

TEST(LibRGW, DELETE_BUCKET_MULTI) {
  if (do_multi) {
    for (int ix = 0; ix < multi_cnt; ++ix) {
      string bn = bucket_name;
      bn += to_string(ix);
      int ret = rgw_unlink(fs, fs->root_fh, bn.c_str(),
			   RGW_UNLINK_FLAG_NONE);
      ASSERT_EQ(ret, 0);
    }
  }
}

TEST(LibRGW, CLEANUP) {
  // do nothing
}

TEST(LibRGW, UMOUNT) {
  if (! fs)
    return;

  int ret = rgw_umount(fs, RGW_UMOUNT_FLAG_NONE);
  ASSERT_EQ(ret, 0);
}

TEST(LibRGW, SHUTDOWN) {
  librgw_shutdown(rgw);
}

int main(int argc, char *argv[])
{
  char *v{nullptr};
  string val;
  vector<const char*> args;

  argv_to_vec(argc, const_cast<const char**>(argv), args);
  env_to_vec(args);

  v = getenv("AWS_ACCESS_KEY_ID");
  if (v) {
    access_key = v;
  }

  v = getenv("AWS_SECRET_ACCESS_KEY");
  if (v) {
    secret_key = v;
  }

  for (auto arg_iter = args.begin(); arg_iter != args.end();) {
    if (ceph_argparse_witharg(args, arg_iter, &val, "--access",
			      (char*) nullptr)) {
      access_key = val;
    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--secret",
				     (char*) nullptr)) {
      secret_key = val;
    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--userid",
				     (char*) nullptr)) {
      userid = val;
    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--bn",
				     (char*) nullptr)) {
      bucket_name = val;
    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--uid",
				     (char*) nullptr)) {
      owner_uid = std::stoi(val);
    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--gid",
				     (char*) nullptr)) {
      owner_gid = std::stoi(val);
    } else if (ceph_argparse_flag(args, arg_iter, "--create",
					    (char*) nullptr)) {
      do_create = true;
    } else if (ceph_argparse_flag(args, arg_iter, "--delete",
					    (char*) nullptr)) {
      do_delete = true;
    } else if (ceph_argparse_flag(args, arg_iter, "--multi",
					    (char*) nullptr)) {
      do_multi = true;
    } else {
      ++arg_iter;
    }
  }

  /* dont accidentally run as anonymous */
  if ((access_key == "") ||
      (secret_key == "")) {
    std::cout << argv[0] << " no AWS credentials, exiting" << std::endl;
    return EPERM;
  }

  saved_args.argc = argc;
  saved_args.argv = argv;

  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}