add: stand configs

PROD_STAND/POSTGRES/testnode/src/controllers/gh-query.controller.ts

@@ -0,0 +1,134 @@
+// Uncomment these imports to begin using these cool features!
+
+import {inject} from '@loopback/context';
+import {get, getModelSchemaRef, param} from '@loopback/openapi-v3';
+import {QueryResult, ResultIssueInfo} from '../models';
+import {GhQueryService, IssueInfo, QueryResponse} from '../services';
+
+// import {inject} from '@loopback/core';
+
+
+export class GhQueryController {
+  // inject the GhQueryService service proxy
+  constructor(@inject('services.GhQueryService') protected queryService:GhQueryService) {}
+
+  // create the API that get the issues by providing:
+  // repo: <GitHub org>/<GitHub repo>. For example, `strongloop/loopback-next`
+  // label: If it has special characters, you need to escape it.
+  // For example, if the label is "help wanted", it will be "help+wanted".
+  @get('/issues/repo/{repo}/label/{label}', {
+    responses: {
+      '200': {
+        description: 'Array of GitHub issues info',
+        content: {
+          'application/json': {
+            schema: getModelSchemaRef(QueryResult)
+          }
+        }
+      }
+    }
+  })
+  async getIssuesByLabel(
+    @param.path.string('repo') repo: string,
+    @param.path.string('label') label:string): Promise<QueryResult> {
+    let result:QueryResponse = await this.queryService.getIssuesByLabel(repo, label);
+    let queryResult = new QueryResult();
+    queryResult.items = [];
+    queryResult.total_count = result.body.total_count;
+    result.body.items.forEach(issue => {
+      this.addToResult(issue, queryResult);
+    });
+
+    // check if there is next page of the results
+    const nextLink = this.getNextLink(result.headers.link);
+    if (nextLink == null) return queryResult;
+    await this.getIssueByURL(nextLink, this.queryService, queryResult);
+    return queryResult;
+  }
+
+  /**
+   * Get issues from URL
+   * @param nextLinkURL
+   * @param queryService
+   * @param queryResult
+   * @returns
+   */
+  async getIssueByURL(nextLinkURL: string, queryService: GhQueryService, queryResult:QueryResult) {
+    let result = await queryService.getIssuesByURL(nextLinkURL);
+    result.body.items.forEach(issue => {
+      this.addToResult(issue, queryResult);
+    });
+
+    const nextLink2 = this.getNextLink(result.headers.link);
+    if (nextLink2 == null) return;
+    await this.getIssueByURL(nextLink2, queryService, queryResult);
+  }
+
+  /**
+* Get the URL for the "next" page.
+* The Link header is in the format of:
+* Link: <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=2>; rel="next",
+  <https://api.github.com/search/code?q=addClass+user%3Amozilla&page=34>; rel="last"
+* @param link
+* @returns
+*/
+getNextLink(link: string): string|null {
+  if (link == undefined) return null;
+
+  let tokens: string[] = link.split(',');
+  let url: string|null = null;
+
+  tokens.forEach(token => {
+    if (token.indexOf('rel="next"')!=-1) {
+      url = token.substring(token.indexOf('<')+1, token.indexOf(';')-1);
+    }
+  });
+
+  return url;
+ }
+  /**
+   * Add the issue to the QueryResult object
+   * @param issue
+   * @param queryResult
+   */
+  addToResult(issue: IssueInfo, queryResult: QueryResult) {
+    let issueInfo:ResultIssueInfo = new ResultIssueInfo();
+      issueInfo.html_url = issue.html_url;
+      issueInfo.title = issue.title;
+      issueInfo.state = issue.state;
+      issueInfo.age = this.getIssueAge(issue.created_at);
+      queryResult.items?.push(issueInfo);
+  }
+  /**
+   * Calculate the age of the issue
+   * i.e. take today's date and find the number of days difference from
+   * the issue creation date
+   * @param created_at
+   * @returns
+   */
+  getIssueAge(created_at: string): number {
+    let todayDate: Date = new Date();
+    let createDate: Date = new Date(created_at);
+    let differenceInTime = todayDate.getTime() - createDate.getTime();
+
+    //get the difference in day
+    return Math.floor(differenceInTime / (1000 * 3600 * 24));
+  }
+}
+
+
+
+// /**
+//  * QueryResult
+//  */
+// class QueryResult {
+//   total_count: number;
+//   items: ResultIssueInfo[];
+// }
+
+// class ResultIssueInfo {
+//   title: string;
+//   html_url: string;
+//   state: string;
+//   age: number;
+// }