package com.box.sdk;

import com.eclipsesource.json.Json;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Date;

/** Represents a file request on Box. */
@BoxResourceType("file_request")
public class BoxFileRequest extends BoxResource {

  /** File Request URL Template. */
  public static final URLTemplate FILE_REQUEST_URL_TEMPLATE = new URLTemplate("file_requests/%s");
  /** Copy File Request URL Template. */
  public static final URLTemplate COPY_FILE_REQUEST_URL_TEMPLATE =
      new URLTemplate("file_requests/%s/copy");

  /**
   * Constructs a BoxFileRequest for a file request with a given ID.
   *
   * @param api the API connection to be used by the file request.
   * @param id the ID of the file request.
   */
  public BoxFileRequest(BoxAPIConnection api, String id) {
    super(api, id);
  }

  /**
   * Gets information about this file request.
   *
   * @return info about this file request.
   */
  public BoxFileRequest.Info getInfo() {
    URL url = FILE_REQUEST_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
    BoxJSONRequest request = new BoxJSONRequest(this.getAPI(), url, "GET");
    try (BoxJSONResponse response = request.send()) {
      JsonObject responseJSON = Json.parse(response.getJSON()).asObject();
      return new Info(responseJSON, this.getAPI().getBaseAppUrl());
    }
  }

  /**
   * Copies this file request that is already present on one folder, and applies it to another
   * folder.
   *
   * @param folderId the ID of the folder for the file request.
   * @return info about the newly copied file request.
   */
  public BoxFileRequest.Info copyInfo(String folderId) {
    URL url = COPY_FILE_REQUEST_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
    BoxJSONRequest request = new BoxJSONRequest(this.getAPI(), url, "POST");
    JsonObject body = new JsonObject();
    JsonObject folderBody = new JsonObject();
    folderBody.add("id", folderId);
    folderBody.add("type", "folder");
    body.add("folder", folderBody);
    request.setBody(body.toString());
    try (BoxJSONResponse response = request.send()) {
      JsonObject jsonObject = Json.parse(response.getJSON()).asObject();
      String id = jsonObject.get("id").asString();
      return new BoxFileRequest(this.getAPI(), id)
      .new Info(jsonObject, this.getAPI().getBaseAppUrl());
    }
  }

  /**
   * Copies this file request that is already present on one folder, and applies it to another
   * folder.
   *
   * <p>Info fields that have been modified locally will overwrite the values in the original file
   * request.
   *
   * @param info the info.
   * @param folderId the ID of the folder for the file request.
   * @return info about the newly copied file request.
   */
  public BoxFileRequest.Info copyInfo(BoxFileRequest.Info info, String folderId) {
    URL url = COPY_FILE_REQUEST_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
    BoxJSONRequest request = new BoxJSONRequest(this.getAPI(), url, "POST");
    JsonObject body = new JsonObject();
    JsonObject pendingChanges = info.getPendingChangesAsJsonObject();
    if (pendingChanges != null) {
      body = pendingChanges;
    }
    JsonObject folderBody = new JsonObject();
    folderBody.add("id", folderId);
    folderBody.add("type", "folder");
    body.add("folder", folderBody);
    request.setBody(body.toString());
    try (BoxJSONResponse response = request.send()) {
      JsonObject jsonObject = Json.parse(response.getJSON()).asObject();
      String id = jsonObject.get("id").asString();
      return new BoxFileRequest(this.getAPI(), id)
      .new Info(jsonObject, this.getAPI().getBaseAppUrl());
    }
  }

  /**
   * Updates the information about this file request with any info fields that have been modified
   * locally.
   *
   * <p>The only fields that will be updated are the ones that have been modified locally. For
   * example, the following code won't update any information (or even send a network request) since
   * none of the info's fields were changed:
   *
   * <pre>BoxFileRequest fileRequest = new BoxFileRequest(api, id);
   * BoxFileRequest.Info info = fileRequest.getInfo();
   * info.updateInfo(info);</pre>
   *
   * @param info the updated info.
   * @return info about the updated file request.
   */
  public BoxFileRequest.Info updateInfo(BoxFileRequest.Info info) {
    URL url = FILE_REQUEST_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
    BoxJSONRequest request = new BoxJSONRequest(this.getAPI(), url, "PUT");
    request.setBody(info.getPendingChanges());
    try (BoxJSONResponse response = request.send()) {
      JsonObject jsonObject = Json.parse(response.getJSON()).asObject();
      info.update(jsonObject);
      return info;
    }
  }

  /** Delete this file request. */
  public void delete() {
    URL url = FILE_REQUEST_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
    BoxAPIRequest request = new BoxAPIRequest(this.getAPI(), url, "DELETE");
    request.send().close();
  }

  /** The status of the file request. */
  public enum Status {
    /** The file request can accept new submissions. */
    ACTIVE("active"),

    /** The file request can't accept new submissions. */
    INACTIVE("inactive");

    private final String jsonValue;

    Status(String jsonValue) {
      this.jsonValue = jsonValue;
    }

    static Status fromJSONString(String jsonValue) {
      return Status.valueOf(jsonValue.toUpperCase(java.util.Locale.ROOT));
    }

    String toJSONString() {
      return this.jsonValue;
    }
  }

  /** Contains information about a BoxFileRequest. */
  public class Info extends BoxResource.Info {
    private String type;
    private Date createdAt;
    private BoxUser.Info createdBy;
    private String description;
    private String etag;
    private Date expiresAt;
    private BoxFolder.Info folder;
    private boolean isDescriptionRequired;
    private boolean isEmailRequired;
    private Status status;
    private String title;
    private Date updatedAt;
    private BoxUser.Info updatedBy;
    private URL url;
    private String path;
    private String baseUrl;

    /** Constructs an empty Info object. */
    public Info() {
      super();
    }

    /**
     * Constructs an Info object by parsing information from a JSON string.
     *
     * @param json the JSON string to parse.
     */
    public Info(String json) {
      super(json);
    }

    /**
     * Constructs an Info object using an already parsed JSON object.
     *
     * @param jsonObject the parsed JSON object.
     * @param fileRequestBaseUrl Request base URL
     */
    Info(JsonObject jsonObject, String fileRequestBaseUrl) {
      super(jsonObject);
      try {
        this.baseUrl = fileRequestBaseUrl;
        this.url = new URL(this.baseUrl + this.path);
      } catch (MalformedURLException e) {
        throw new BoxAPIException("Couldn't construct url for file request", e);
      }
    }

    @Override
    public BoxFileRequest getResource() {
      return BoxFileRequest.this;
    }

    /**
     * Gets the file request type.
     *
     * @return the file request type.
     */
    public String getType() {
      return this.type;
    }

    /**
     * Gets the date when the file request was created.
     *
     * @return the date when the file request was created.
     */
    public Date getCreatedAt() {
      return this.createdAt;
    }

    /**
     * Gets the user who created this file request.
     *
     * @return the user who created this file request.
     */
    public BoxUser.Info getCreatedBy() {
      return this.createdBy;
    }

    /**
     * Gets the description of this file request.
     *
     * @return the description of this file request.
     */
    public String getDescription() {
      return this.description;
    }

    /**
     * Sets the description of this file request.
     *
     * @param description the file request's new description.
     */
    public void setDescription(String description) {
      this.description = description;
      this.addPendingChange("description", description);
    }

    /**
     * Gets a unique string identifying the version of the item.
     *
     * @return a unique string identifying the version of the item.
     */
    public String getEtag() {
      return this.etag;
    }

    /**
     * Gets the date after which a file request will no longer accept new submissions.
     *
     * @return the date after which a file request will no longer accept new submissions.
     */
    public Date getExpiresAt() {
      return this.expiresAt;
    }

    /**
     * Sets the date after which a file request will no longer accept new submissions.
     *
     * @param expiresAt the date after which a file request will no longer accept new submissions.
     */
    public void setExpiresAt(Date expiresAt) {
      this.expiresAt = expiresAt;
      this.addPendingChange("expires_at", BoxDateFormat.format(expiresAt));
    }

    /**
     * Gets the folder that this file request is associated with.
     *
     * @return the folder that this file request is associated with.
     */
    public BoxFolder.Info getFolder() {
      return this.folder;
    }

    /**
     * Gets whether a file request submitter is required to provide a description of the files they
     * are submitting.
     *
     * @return whether a file request submitter is required to provide a description of the files
     *     they are submitting.
     */
    public Boolean getIsDescriptionRequired() {
      return this.isDescriptionRequired;
    }

    /**
     * Sets whether a file request submitter is required to provide a description of the files they
     * are submitting.
     *
     * @param isDescriptionRequired whether a file request submitter is required to provide a
     *     description of the files they are submitting.
     */
    public void setIsDescriptionRequired(Boolean isDescriptionRequired) {
      this.isDescriptionRequired = isDescriptionRequired;
      this.addPendingChange("is_description_required", isDescriptionRequired);
    }

    /**
     * Gets whether a file request submitter is required to provide their email address.
     *
     * @return whether a file request submitter is required to provide their email address.
     */
    public Boolean getIsEmailRequired() {
      return this.isEmailRequired;
    }

    /**
     * Sets whether a file request submitter is required to provide their email address.
     *
     * @param isEmailRequired whether a file request submitter is required to provide their email
     *     address.
     */
    public void setIsEmailRequired(Boolean isEmailRequired) {
      this.isEmailRequired = isEmailRequired;
      this.addPendingChange("is_email_required", isEmailRequired);
    }

    /**
     * Gets the status of the file request.
     *
     * @return the status of the file request
     */
    public Status getStatus() {
      return this.status;
    }

    /**
     * Sets the status of the file request.
     *
     * @param status the status of the file request
     */
    public void setStatus(Status status) {
      this.status = status;
      this.addPendingChange("status", status.toJSONString());
    }

    /**
     * Gets the title of file request.
     *
     * @return the title of file request.
     */
    public String getTitle() {
      return this.title;
    }

    /**
     * Sets the title of file request.
     *
     * @param title the title of file request.
     */
    public void setTitle(String title) {
      this.title = title;
      this.addPendingChange("title", title);
    }

    /**
     * Gets the date when the file request was last updated.
     *
     * @return the date when the file request was last updated.
     */
    public Date getUpdatedAt() {
      return this.updatedAt;
    }

    /**
     * Gets the user who last modified this file request.
     *
     * @return the user who last modified this file request.
     */
    public BoxUser.Info getUpdatedBy() {
      return this.updatedBy;
    }

    /**
     * Gets the URL can be shared with users to let them upload files to the associated folder.
     *
     * @return the URL for files upload.
     */
    public URL getUrl() {
      return this.url;
    }

    /**
     * Gets the base URL for the upload files link.
     *
     * @return the base url including protocol and hostname.
     */
    public String getBaseUrl() {
      return this.baseUrl;
    }

    /**
     * Sets the base URL for the upload files link. Can throw an exception if format of the URL is
     * invalid.
     *
     * @param baseUrl the base url including protocol and hostname.
     * @throws MalformedURLException when baseUrl format is invalid.
     */
    public void setBaseUrl(String baseUrl) throws MalformedURLException {
      this.baseUrl = baseUrl;
      this.url = new URL(this.baseUrl + this.path);
    }

    /**
     * Gets the URL containing only the path (e.g. "/f/123456789") shared with users to let them
     * upload files to the associated folder.
     *
     * @return the path of the URL for files upload.
     */
    public String getPath() {
      return this.path;
    }

    @Override
    void parseJSONMember(JsonObject.Member member) {
      super.parseJSONMember(member);

      String memberName = member.getName();
      JsonValue value = member.getValue();
      try {
        if (memberName.equals("type")) {
          this.type = value.asString();
        } else if (memberName.equals("created_at")) {
          this.createdAt = BoxDateFormat.parse(value.asString());
        } else if (memberName.equals("created_by")) {
          JsonObject userJSON = value.asObject();
          String userID = userJSON.get("id").asString();
          BoxUser user = new BoxUser(getAPI(), userID);
          this.createdBy = user.new Info(userJSON);
        } else if (memberName.equals("description")) {
          this.description = value.asString();
        } else if (memberName.equals("etag")) {
          this.etag = value.asString();
        } else if (memberName.equals("expires_at")) {
          this.expiresAt = BoxDateFormat.parse(value.asString());
        } else if (memberName.equals("folder")) {
          JsonObject folderJSON = value.asObject();
          String folderID = folderJSON.get("id").asString();
          BoxFolder folder = new BoxFolder(getAPI(), folderID);
          this.folder = folder.new Info(folderJSON);
        } else if (memberName.equals("is_description_required")) {
          this.isDescriptionRequired = value.asBoolean();
        } else if (memberName.equals("is_email_required")) {
          this.isEmailRequired = value.asBoolean();
        } else if (memberName.equals("status")) {
          this.status = Status.fromJSONString(value.asString());
        } else if (memberName.equals("title")) {
          this.title = value.asString();
        } else if (memberName.equals("updated_at")) {
          this.updatedAt = BoxDateFormat.parse(value.asString());
        } else if (memberName.equals("updated_by")) {
          JsonObject userJSON = value.asObject();
          String userID = userJSON.get("id").asString();
          BoxUser user = new BoxUser(getAPI(), userID);
          this.createdBy = user.new Info(userJSON);
        } else if (memberName.equals("url")) {
          this.path = value.asString();
        }
      } catch (Exception e) {
        throw new BoxDeserializationException(memberName, value.toString(), e);
      }
    }
  }
}