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import { join } from "../../deps.ts"
//interface/(shape of) our documentsinterface Log  {  file:string,  migratedAt:string}export const log = async(db:any) => {//gets all the filenames within the migrations folder  let files:Array<string> = [];
  for await (let file of Deno.readDir(join(Deno.cwd(),'migrations'))){    if (file.isFile && file.name !== 'migration.ts') files.push(file.name);  }//establishes the connection to the migrationLog connection in mongodb  const migrationCollection = db.collection('migrationLog');// creates an array of all the documents in the mirgation collection  const migrationLog: Array<Log> = await migrationCollection.find({},{ noCursorTimeout:false }).toArray();// applies a func on every file from the migrations folder  const logStatus:Array<Log> = await Promise.all(files.map(async (file:string) => {    //create a var that will be a prop on the collection obj    let migratedAt:string;    //finds the first file that matches in the migrationLog(which is an array of docs in migr. coll)    for(const document of migrationLog){      if(document.file === file){        //if the file name matches the file already in the migrationLog assign the migrated at prop        migratedAt = document.migratedAt;        //return the document        return {file, migratedAt}      }    }    //if not    migratedAt = 'PENDING';    //return an obj with props of the files name and the mirgatedAt status    return {file, migratedAt}  }))  //return the logStatus to be displayed onto the terminal as a table for the user's view(this will be done in the cli)  return logStatus;};