import restify from "restify";
import _ from "lodash";
import loadDb from "./db.js";
import corsMiddleware from "cors";
import { errors } from "common";

const factions = [
  { name: "Arborec", id: 1 },
  { name: "Barony of Letnev", id: 2 },
  { name: "Clan of Saar", id: 3 },
  { name: "Embers of Muaat", id: 4 },
  { name: "Emirates of Hacan", id: 5 },
  { name: "Federation of Sol", id: 6 },
  { name: "Ghosts of Creuss", id: 7 },
  { name: "L1Z1X Mindnet", id: 8 },
  { name: "Mentak Coalition", id: 9 },
  { name: "Naalu Collective", id: 10 },
  { name: "Nekro Virus", id: 11 },
  { name: "Sardakk N’orr", id: 12 },
  { name: "Universities of Jol-Nar", id: 13 },
  { name: "Winnu", id: 14 },
  { name: "Xxcha Kingdom", id: 15 },
  { name: "Yin Brotherhood", id: 16 },
  { name: "Yssaril Tribes", id: 17 },
  { name: "Argent Flight", id: 18 },
  { name: "Empyrean", id: 19 },
  { name: "Mahact Gene-Sorcerers", id: 20 },
  { name: "Naaz-Rokha Alliance", id: 21 },
  { name: "Nomad", id: 22 },
  { name: "Titans of Ul", id: 23 },
  { name: "Vuil'Raith Cabal", id: 24 }
];

const db = loadDb("/data/ti.db");

const server = restify.createServer({
  name: "spoll",
  version: "1.0.1"
});

server.use(restify.plugins.acceptParser(server.acceptable));
server.use(restify.plugins.queryParser());
server.use(restify.plugins.bodyParser());

const cors = corsMiddleware({
  credentials: true,
  preflightMaxAge: 5,
  origin: function(origin, callback) {
    callback(null, origin);
  }
});
server.pre(cors);

server.put("/register/:name", function(req, res, next) {
  const existingRecord = db.get(`/users/${req.params.name}`);
  if (existingRecord.name) {
    res.send({ error: errors.register.exists });
  } else {
    db.update(`/users/${req.params.name}`, {
      password: req.body.password,
      factions: []
    });
    const dbEntry = db.get(`/users/${req.params.name}`);
    res.send(dbEntry);
    return next();
  }
});

server.post("/win/:name", function(req, res, next) {
  const user = db.get(`/users/${req.body.name}`);
  if (user && req.body.password === user.password) {
    const dbEntry = db.get(`/wins/${req.params.name}`);
    db.set(`/wins/${req.params.name}`, {
      ...dbEntry,
      [req.body.game]: { ...dbEntry[req.body.game], [req.body.name]: 1 }
    });
    res.send(db.get(`/wins`));
  } else {
    res.send({ error: errors.vote.baduser });
  }
  return next();
});

server.get("/wins", function(req, res, next) {
  const dbEntry = db.get(`/wins`);
  if (dbEntry) {
    res.send(dbEntry);
  } else {
    res.send({});
  }
  return next();
});

server.put("/vote/:name", function(req, res, next) {
  const user = db.get(`/users/${req.params.name}`);
  if (user && req.body.password === user.password) {
    db.set(`/votes/${req.params.name}`, { factions: req.body.factions });
    const dbEntry = db.get(`/votes/${req.params.name}`);
    res.send(dbEntry);
  } else {
    res.send({ error: errors.vote.baduser });
  }
  return next();
});

server.get("/vote/:name", function(req, res, next) {
  const dbEntry = db.get(`/votes/${req.params.name}`);
  if (dbEntry) {
    res.send(dbEntry);
  } else {
    res.send({ error: errors.vote.novotes });
  }
  return next();
});

server.post("/user/:name", function(req, res, next) {
  if (req.params.name) {
    const userEntry = db.get(`/users/${req.params.name}`);
    if (userEntry) {
      if (req.body && userEntry.password === req.body.password) {
        const voteEntry = db.get(`/votes/${req.params.name}`) || [];
        res.send({ ...voteEntry });
      } else {
        res.send({ error: errors.user.badpassword });
      }
    } else {
      res.send({ error: errors.user.notfound });
    }
  } else {
    res.send({ error: errors.user.nouser });
  }
  return next();
});

function lockChoices() {
  const dbEntry = db.get(`/votes`);
  function customizer(objValue, srcValue) {
    if (_.isArray(objValue)) {
      return objValue.concat(srcValue);
    }
  }

  const allChoices = Object.keys(dbEntry).reduce((acc, player) => {
    const achoices = dbEntry[player].factions.reduce((acc, factionChoice) => {
      return _.mergeWith(
        acc,
        {
          [factionChoice.id]: { ...factionChoice, chosenBy: [player] }
        },
        customizer
      );
    }, {});
    return _.mergeWith(acc, achoices, customizer);
  }, {});

  let notPicked = Object.keys(allChoices).reduce((acc, factionId) => {
    return acc.filter(faction => {
      return Number(faction.id) !== Number(factionId);
    });
  }, factions);
  const resolved = Object.keys(dbEntry).reduce((acc, player) => {
    const resolvedChoices = dbEntry[player].factions.map(factionChoice => {
      return {
        ...factionChoice,
        unique: allChoices[factionChoice.id].chosenBy.length < 2
      };
    });

    let selected = resolvedChoices.find(choice => choice.unique);
    if (!selected) {
      const randomId = Math.floor(Math.random() * (notPicked.length - 1));
      selected = notPicked[Object.keys(notPicked)[randomId]];
      notPicked = notPicked.filter(faction => faction.id !== selected.id);
    }

    return { ...acc, [player]: { choices: resolvedChoices, selected } };
  }, {});
  db.set("/factionChoices", resolved);
  return resolved;
}

server.get("/votes", function(req, res, next) {
  const revealDate = 1618077600 * 1000;
  if (Date.now() >= revealDate) {
    const choices = db.get("/factionChoices") || lockChoices();

    res.send(choices);
  } else {
    const dbEntry = db.get(`/votes`);
    res.send({ error: errors.votes.toosoon, voted: Object.keys(dbEntry) });
  }
  return next();
});

// test comment
server.listen(8082, function() {
  console.log("%s listening at %s", server.name, server.url);
});