// Copyright (C) 2014 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.gerrit.server.api.accounts;

import com.google.gerrit.extensions.api.accounts.AccountApi;
import com.google.gerrit.extensions.api.accounts.Accounts;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.IdString;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.account.AccountResource;
import com.google.gerrit.server.account.AccountsCollection;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;

@Singleton
public class AccountsImpl extends Accounts.NotImplemented implements Accounts {
  private final AccountsCollection accounts;
  private final AccountApiImpl.Factory api;
  private final Provider<CurrentUser> self;

  @Inject
  AccountsImpl(AccountsCollection accounts,
      AccountApiImpl.Factory api,
      Provider<CurrentUser> self) {
    this.accounts = accounts;
    this.api = api;
    this.self = self;
  }

  @Override
  public AccountApi id(String id) throws RestApiException {
    try {
      return api.create(accounts.parse(TopLevelResource.INSTANCE,
          IdString.fromDecoded(id)));
    } catch (OrmException e) {
      throw new RestApiException("Cannot parse change", e);
    }
  }

  @Override
  public AccountApi self() throws RestApiException {
    if (!self.get().isIdentifiedUser()) {
      throw new AuthException("Authentication required");
    }
    return api.create(new AccountResource((IdentifiedUser)self.get()));
  }
}