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/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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 io.gravitee.management.rest.resource;

import io.gravitee.management.model.permissions.RolePermission;
import io.gravitee.management.model.permissions.RolePermissionAction;
import io.gravitee.management.rest.security.Permission;
import io.gravitee.management.rest.security.Permissions;
import io.gravitee.management.service.GroupService;
import io.gravitee.management.service.MembershipService;
import io.gravitee.management.service.UserService;
import io.gravitee.management.service.exceptions.UserNotFoundException;
import io.gravitee.repository.management.model.MembershipReferenceType;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

import javax.inject.Inject;
import javax.ws.rs.DELETE;
import javax.ws.rs.PathParam;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

/**
 * @author Nicolas GERAUD (nicolas.geraud at graviteesource.com) 
 * @author GraviteeSource Team
 */
@Api(tags = {"Group"})
public class GroupMemberResource extends AbstractResource {

    @Context
    private ResourceContext resourceContext;

    @Inject
    private UserService userService;

    @Inject
    private GroupService groupService;

    @Inject
    private MembershipService membershipService;

    @DELETE
    @ApiOperation(value = "Remove a group member")
    @ApiResponses({
            @ApiResponse(code = 200, message = "Member has been removed successfully"),
            @ApiResponse(code = 400, message = "User does not exist"),
            @ApiResponse(code = 500, message = "Internal server error")})
    @Permissions({
            @Permission(value = RolePermission.MANAGEMENT_GROUP, acls = RolePermissionAction.DELETE),
            @Permission(value = RolePermission.GROUP_MEMBER, acls = RolePermissionAction.DELETE)
    })
    public Response deleteMember( @PathParam("group") String group, @PathParam("member") String userId) {
        // check group exists
        groupService.findById(group);
        try {
            userService.findById(userId);
        } catch (UserNotFoundException unfe) {
            return Response.status(Response.Status.BAD_REQUEST).entity(unfe.getMessage()).build();
        }

        membershipService.deleteMember(MembershipReferenceType.GROUP, group, userId);
        return Response.ok().build();
    }
}