/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package sonia.scm.security.gpg;

import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.media.Content;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import sonia.scm.api.v2.resources.ErrorDto;
import sonia.scm.security.AllowAnonymousAccess;
import sonia.scm.web.VndMediaType;

import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import java.util.Optional;

@Path("v2/public_keys")
public class PublicKeyResource {


  private final PublicKeyStore store;

  @Inject
  public PublicKeyResource(PublicKeyStore store) {
    this.store = store;
  }

  @GET
  @Path("{id}")
  @Produces("application/pgp-keys")
  @AllowAnonymousAccess
  @Operation(
    summary = "Get single key for user",
    description = "Returns a single public key for username by id.",
    tags = "User",
    operationId = "get_single_public_key"
  )
  @ApiResponse(
    responseCode = "200",
    description = "success",
    content = @Content(
      mediaType = "application/pgp-keys"
    )
  )
  @ApiResponse(responseCode = "401", description = "not authenticated / invalid credentials")
  @ApiResponse(responseCode = "403", description = "not authorized /  the current user does not have the right privilege")
  @ApiResponse(
    responseCode = "404",
    description = "not found / key for given id not available",
    content = @Content(
      mediaType = VndMediaType.ERROR_TYPE,
      schema = @Schema(implementation = ErrorDto.class)
    )
  )
  @ApiResponse(
    responseCode = "500",
    description = "internal server error",
    content = @Content(
      mediaType = VndMediaType.ERROR_TYPE,
      schema = @Schema(implementation = ErrorDto.class)
    )
  )
  public Response findByIdGpg(@PathParam("id") String id) {
    Optional<RawGpgKey> byId = store.findById(id);
    if (byId.isPresent()) {
      return Response.ok(byId.get().getRaw())
        .header("Content-Disposition", "attachment; filename=\"" + byId.get().getDisplayName() + ".asc\"")
        .build();
    }
    return Response.status(Response.Status.NOT_FOUND).build();
  }

}
