const { config } = require("dotenv");
const path = require("path");
config({ path: path.join(__dirname, ".env") });
const { mongoDB } = require("./init/mongodb");
const { connectDB } = require("./init/mongodb");

console.log(config());

const admin = require("firebase-admin");

// const { User } = require("./models/user");
// const { Leaderboard } = require("./models/leaderboard");
// const { BotCommand } = require("./models/bot-command");

const serviceAccount = require("../functions/serviceAccountKey.json");

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
});

var db = admin.firestore();

// Database should be completely clear before this is ran in order to prevent overlapping documents
// Migrate users
async function migrateUsers() {
  await db
    .collection("users")
    .where("name", "==", "mio")
    .get()
    .then((querySnapshot) => {
      // console.log('start of foreach');
      querySnapshot.forEach(async (userDoc) => {
        let userData = userDoc.data();
        console.log(userData);
        //   let newUser;
        //   try{
        //     let data = userDoc.data();
        //     data._id = userDoc.id;
        //     newUser = new User(data);
        //     newUser.uid = userDoc.id;
        //     newUser.globalStats = {
        //       started: userDoc.data().startedTests,
        //       completed: userDoc.data().completedTests,
        //       time: userDoc.data().timeTyping,
        //     };
        //     let tagIdDict = {};
        //     let tagsSnapshot = await db.collection(`users/${userDoc.id}/tags`).get();
        //     tagsSnapshot.forEach((tagDoc) => {
        //       let formattedTag = tagDoc.data();
        //       formattedTag._id = mongoose.Types.ObjectId(); //generate new objectId
        //       tagIdDict[tagDoc.id] = formattedTag._id; //save pair of ids in memory to determine what to set new id as in result tags
        //       newUser.tags.push(formattedTag);
        //       console.log(`Tag ${tagDoc.id} saved for user ${userCount}`);
        //     });
        //     let resultsSnapshot = await db.collection(`users/${userDoc.id}/results`).get();
        //     let resCount = 1;
        //     resultsSnapshot.forEach((result) => {
        //       let formattedResult = result.data();
        //       if(formattedResult.tags != undefined){
        //         formattedResult.tags.forEach((tag, index) => {
        //           if (tagIdDict[tag])
        //             formattedResult.tags[index] = tagIdDict[tag];
        //         });
        //       }
        //       newUser.results.push(formattedResult);
        //       console.log(`Result ${resCount} saved for user ${userCount}`);
        //       resCount++;
        //     });
        //     newUser.results.sort((a, b) => {
        //       return a.timestamp - b.timestamp;
        //     });
        //     let presetsSnapshot = await db.collection(`users/${userDoc.id}/presets`).get();
        //     presetsSnapshot.forEach((preset) => {
        //       newUser.presets.push(preset.data());
        //     });
        //     await newUser.save();
        //     console.log(`User ${userCount} (${newUser.uid}) saved`);
        //     userCount++;
        //   }catch(e){
        //     // throw e;
        //     console.log(`User ${userCount} (${newUser.uid}) failed: ${e.message}`);
        //     userCount++;
        //   }
      });
      // console.log('end of foreach');
    });
}
// //not tested because I can't get leaderboards to work on my fork for some reason
// db.collection("leaderboards")
//   .get()
//   .then((leaderboardsSnapshot) => {
//     leaderboardsSnapshot.forEach((lbDoc) => {
//       let newLb = new Leaderboard(lbDoc.data());
//       newLb.save();
//     });
//   });

// //migrate bot-commands
// db.collection("bot-commands")
//   .get()
//   .then((botCommandsSnapshot) => {
//     botCommandsSnapshot.forEach((bcDoc) => {
//       let newBotCommand = new BotCommand(bcDoc.data());
//       newBotCommand.save();
//     });
//   });

//migrate public stat
async function migratePublicStats() {
  db.collection("public")
    .doc("stats")
    .get()
    .then((ret) => {
      let stats = ret.data();
      mongoDB()
        .collection("public")
        .updateOne(
          { type: "stats" },
          {
            $set: {
              completedTests: stats.completedTests,
              startedTests: stats.startedTests,
              timeTyping: stats.timeTyping,
            },
          },
          { upsert: true }
        );
    });
}

async function init() {
  await connectDB();
  // await migratePublicStats();
  await migrateUsers();
  process.exit(1);
}

init();