import type * as Models from './models';
import type * as Parameters from './parameters';
import type { Client } from '../clients';
import type { Callback } from '../callback';
import type { RequestConfig } from '../requestConfig';

export class Epic {
  constructor(private client: Client) {}

  /**
   * Returns all issues that do not belong to any epic. This only includes issues that the user has permission to view.
   * Issues returned from this resource include Agile fields, like sprint, closedSprints, flagged, and epic. By default,
   * the returned issues are ordered by rank. **Note:** If you are querying a next-gen project, do not use this
   * operation. Instead, search for issues that don't belong to an epic by using the [Search for issues using
   * JQL](https://developer.atlassian.com/cloud/jira/platform/rest/v2/#api-rest-api-2-search-get) operation in the Jira
   * platform REST API. Build your JQL query using the `parent is empty` clause. For more information on the `parent`
   * JQL field, see [Advanced
   * searching](https://confluence.atlassian.com/x/dAiiLQ#Advancedsearching-fieldsreference-Parent).
   */
  async getIssuesWithoutEpic<T = unknown>(
    parameters: Parameters.GetIssuesWithoutEpic | undefined,
    callback: Callback<T>,
  ): Promise<void>;
  /**
   * Returns all issues that do not belong to any epic. This only includes issues that the user has permission to view.
   * Issues returned from this resource include Agile fields, like sprint, closedSprints, flagged, and epic. By default,
   * the returned issues are ordered by rank. **Note:** If you are querying a next-gen project, do not use this
   * operation. Instead, search for issues that don't belong to an epic by using the [Search for issues using
   * JQL](https://developer.atlassian.com/cloud/jira/platform/rest/v2/#api-rest-api-2-search-get) operation in the Jira
   * platform REST API. Build your JQL query using the `parent is empty` clause. For more information on the `parent`
   * JQL field, see [Advanced
   * searching](https://confluence.atlassian.com/x/dAiiLQ#Advancedsearching-fieldsreference-Parent).
   */
  async getIssuesWithoutEpic<T = unknown>(parameters?: Parameters.GetIssuesWithoutEpic, callback?: never): Promise<T>;
  async getIssuesWithoutEpic<T = unknown>(
    parameters?: Parameters.GetIssuesWithoutEpic,
    callback?: Callback<T>,
  ): Promise<void | T> {
    const config: RequestConfig = {
      url: '/rest/agile/1.0/epic/none/issue',
      method: 'GET',
      params: {
        startAt: parameters?.startAt,
        maxResults: parameters?.maxResults,
        jql: parameters?.jql,
        validateQuery: parameters?.validateQuery,
        fields: parameters?.fields,
        expand: parameters?.expand,
      },
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Removes issues from epics. The user needs to have the edit issue permission for all issue they want to remove from
   * epics. The maximum number of issues that can be moved in one operation is 50. **Note:** This operation does not
   * work for epics in next-gen projects. Instead, update the issue using `\{ fields: \{ parent: \{\} \} \}`
   */
  async removeIssuesFromEpic<T = void>(
    parameters: Parameters.RemoveIssuesFromEpic | undefined,
    callback: Callback<T>,
  ): Promise<void>;
  /**
   * Removes issues from epics. The user needs to have the edit issue permission for all issue they want to remove from
   * epics. The maximum number of issues that can be moved in one operation is 50. **Note:** This operation does not
   * work for epics in next-gen projects. Instead, update the issue using `\{ fields: \{ parent: \{\} \} \}`
   */
  async removeIssuesFromEpic<T = void>(parameters?: Parameters.RemoveIssuesFromEpic, callback?: never): Promise<T>;
  async removeIssuesFromEpic<T = void>(
    parameters?: Parameters.RemoveIssuesFromEpic,
    callback?: Callback<T>,
  ): Promise<void | T> {
    const config: RequestConfig = {
      url: '/rest/agile/1.0/epic/none/issue',
      method: 'POST',
      data: {
        issues: parameters?.issues,
      },
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Returns the epic for a given epic ID. This epic will only be returned if the user has permission to view it.
   * **Note:** This operation does not work for epics in next-gen projects.
   */
  async getEpic<T = Models.Epic>(parameters: Parameters.GetEpic, callback: Callback<T>): Promise<void>;
  /**
   * Returns the epic for a given epic ID. This epic will only be returned if the user has permission to view it.
   * **Note:** This operation does not work for epics in next-gen projects.
   */
  async getEpic<T = Models.Epic>(parameters: Parameters.GetEpic, callback?: never): Promise<T>;
  async getEpic<T = Models.Epic>(parameters: Parameters.GetEpic, callback?: Callback<T>): Promise<void | T> {
    const config: RequestConfig = {
      url: `/rest/agile/1.0/epic/${parameters.epicIdOrKey}`,
      method: 'GET',
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Performs a partial update of the epic. A partial update means that fields not present in the request JSON will not
   * be updated. Valid values for color are `color_1` to `color_9`. **Note:** This operation does not work for epics in
   * next-gen projects.
   */
  async partiallyUpdateEpic<T = Models.Epic>(
    parameters: Parameters.PartiallyUpdateEpic,
    callback: Callback<T>,
  ): Promise<void>;
  /**
   * Performs a partial update of the epic. A partial update means that fields not present in the request JSON will not
   * be updated. Valid values for color are `color_1` to `color_9`. **Note:** This operation does not work for epics in
   * next-gen projects.
   */
  async partiallyUpdateEpic<T = Models.Epic>(parameters: Parameters.PartiallyUpdateEpic, callback?: never): Promise<T>;
  async partiallyUpdateEpic<T = Models.Epic>(
    parameters: Parameters.PartiallyUpdateEpic,
    callback?: Callback<T>,
  ): Promise<void | T> {
    const config: RequestConfig = {
      url: `/rest/agile/1.0/epic/${parameters.epicIdOrKey}`,
      method: 'POST',
      data: {
        color: parameters.color,
        done: parameters.done,
        name: parameters.name,
        summary: parameters.summary,
      },
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Returns all issues that belong to the epic, for the given epic ID. This only includes issues that the user has
   * permission to view. Issues returned from this resource include Agile fields, like sprint, closedSprints, flagged,
   * and epic. By default, the returned issues are ordered by rank. **Note:** If you are querying a next-gen project, do
   * not use this operation. Instead, search for issues that belong to an epic by using the [Search for issues using
   * JQL](https://developer.atlassian.com/cloud/jira/platform/rest/v2/#api-rest-api-2-search-get) operation in the Jira
   * platform REST API. Build your JQL query using the `parent` clause. For more information on the `parent` JQL field,
   * see [Advanced searching](https://confluence.atlassian.com/x/dAiiLQ#Advancedsearching-fieldsreference-Parent).
   */
  async getIssuesForEpic<T = unknown>(parameters: Parameters.GetIssuesForEpic, callback: Callback<T>): Promise<void>;
  /**
   * Returns all issues that belong to the epic, for the given epic ID. This only includes issues that the user has
   * permission to view. Issues returned from this resource include Agile fields, like sprint, closedSprints, flagged,
   * and epic. By default, the returned issues are ordered by rank. **Note:** If you are querying a next-gen project, do
   * not use this operation. Instead, search for issues that belong to an epic by using the [Search for issues using
   * JQL](https://developer.atlassian.com/cloud/jira/platform/rest/v2/#api-rest-api-2-search-get) operation in the Jira
   * platform REST API. Build your JQL query using the `parent` clause. For more information on the `parent` JQL field,
   * see [Advanced searching](https://confluence.atlassian.com/x/dAiiLQ#Advancedsearching-fieldsreference-Parent).
   */
  async getIssuesForEpic<T = unknown>(parameters: Parameters.GetIssuesForEpic, callback?: never): Promise<T>;
  async getIssuesForEpic<T = unknown>(
    parameters: Parameters.GetIssuesForEpic,
    callback?: Callback<T>,
  ): Promise<void | T> {
    const config: RequestConfig = {
      url: `/rest/agile/1.0/epic/${parameters.epicIdOrKey}/issue`,
      method: 'GET',
      params: {
        startAt: parameters.startAt,
        maxResults: parameters.maxResults,
        jql: parameters.jql,
        validateQuery: parameters.validateQuery,
        fields: parameters.fields,
        expand: parameters.expand,
      },
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Moves issues to an epic, for a given epic id. Issues can be only in a single epic at the same time. That means that
   * already assigned issues to an epic, will not be assigned to the previous epic anymore. The user needs to have the
   * edit issue permission for all issue they want to move and to the epic. The maximum number of issues that can be
   * moved in one operation is 50. **Note:** This operation does not work for epics in next-gen projects.
   */
  async moveIssuesToEpic<T = void>(parameters: Parameters.MoveIssuesToEpic, callback: Callback<T>): Promise<void>;
  /**
   * Moves issues to an epic, for a given epic id. Issues can be only in a single epic at the same time. That means that
   * already assigned issues to an epic, will not be assigned to the previous epic anymore. The user needs to have the
   * edit issue permission for all issue they want to move and to the epic. The maximum number of issues that can be
   * moved in one operation is 50. **Note:** This operation does not work for epics in next-gen projects.
   */
  async moveIssuesToEpic<T = void>(parameters: Parameters.MoveIssuesToEpic, callback?: never): Promise<T>;
  async moveIssuesToEpic<T = void>(parameters: Parameters.MoveIssuesToEpic, callback?: Callback<T>): Promise<void | T> {
    const config: RequestConfig = {
      url: `/rest/agile/1.0/epic/${parameters.epicIdOrKey}/issue`,
      method: 'POST',
      data: {
        issues: parameters.issues,
      },
    };

    return this.client.sendRequest(config, callback);
  }

  /**
   * Moves (ranks) an epic before or after a given epic.
   *
   * If rankCustomFieldId is not defined, the default rank field will be used.
   *
   * **Note:** This operation does not work for epics in next-gen projects.
   */
  async rankEpics<T = void>(parameters: Parameters.RankEpics, callback: Callback<T>): Promise<void>;
  /**
   * Moves (ranks) an epic before or after a given epic.
   *
   * If rankCustomFieldId is not defined, the default rank field will be used.
   *
   * **Note:** This operation does not work for epics in next-gen projects.
   */
  async rankEpics<T = void>(parameters: Parameters.RankEpics, callback?: never): Promise<T>;
  async rankEpics<T = void>(parameters: Parameters.RankEpics, callback?: Callback<T>): Promise<void | T> {
    const config: RequestConfig = {
      url: `/rest/agile/1.0/epic/${parameters.epicIdOrKey}/rank`,
      method: 'PUT',
      data: {
        rankAfterEpic: parameters.rankAfterEpic,
        rankBeforeEpic: parameters.rankBeforeEpic,
        rankCustomFieldId: parameters.rankCustomFieldId,
      },
    };

    return this.client.sendRequest(config, callback);
  }
}