import type {
  ExpandedMergeRequestSchema,
  MergeRequestChangesSchema,
  MergeRequestDiffVersionsSchema,
  MergeRequestNoteSchema,
} from "@gitbeaker/rest"

import netTool from "../netTool"
import { GITLAB_AUTH_HEADER, GITLAB_BASE_URL, gitlabReqWarp } from "./tools"

/**
 * 获取合并请求的评论，支持分页。
 * @param {number} project_id - 项目ID。
 * @param {number} merge_request_iid - 合并请求IID。
 * @param {number} [page=1] - 页码。
 * @param {number} [per_page=20] - 每页的评论数。
 * @returns {Promise<MergeRequestNoteSchema[]>} 返回包含评论的Promise。
 */
const getComments = async (
  project_id: number,
  merge_request_iid: number,
  page: number = 1,
  per_page: number = 20
): Promise<MergeRequestNoteSchema[]> => {
  const URL = `${GITLAB_BASE_URL}/projects/${project_id}/merge_requests/${merge_request_iid}/notes?page=${page}&per_page=${per_page}`
  return gitlabReqWarp<MergeRequestNoteSchema[]>(
    () => netTool.get(URL, {}, GITLAB_AUTH_HEADER),
    []
  )
}

/**
 * 获取合并请求的变更。
 * @param {number} project_id - 项目ID。
 * @param {number} merge_request_iid - 合并请求IID。
 * @returns {Promise<MergeRequestChangesSchema | null>} 返回包含变更的Promise。
 */
const getChanges = async (project_id: number, merge_request_iid: number) => {
  const URL = `${GITLAB_BASE_URL}/projects/${project_id}/merge_requests/${merge_request_iid}/changes`
  return gitlabReqWarp<MergeRequestChangesSchema | null>(
    () => netTool.get(URL, {}, GITLAB_AUTH_HEADER),
    null
  )
}

/**
 * 获取合并请求的详细信息。
 * @param {number} project_id - 项目ID。
 * @param {number} merge_request_iid - 合并请求IID。
 * @returns {Promise<ExpandedMergeRequestSchema | null>} 返回包含详细信息的Promise。
 */
const getDetail = async (project_id: number, merge_request_iid: number) => {
  const URL = `${GITLAB_BASE_URL}/projects/${project_id}/merge_requests/${merge_request_iid}`
  return gitlabReqWarp<ExpandedMergeRequestSchema | null>(
    () => netTool.get(URL, {}, GITLAB_AUTH_HEADER),
    null
  )
}

/**
 * 获取合并请求的差异版本。
 * @param {number} project_id - 项目ID。
 * @param {number} merge_request_iid - 合并请求IID。
 * @returns {Promise<any[]>} 返回包含差异版本的Promise。
 */
const getDiffVersions = async (
  project_id: number,
  merge_request_iid: number
) => {
  const URL = `${GITLAB_BASE_URL}/projects/${project_id}/merge_requests/${merge_request_iid}/versions`
  return gitlabReqWarp<MergeRequestDiffVersionsSchema[]>(
    () => netTool.get(URL, {}, GITLAB_AUTH_HEADER),
    []
  )
}

const mr = {
  getChanges,
  getDetail,
  getComments,
  getDiffVersions,
}

export default mr