var express = require('express')
var router = express.Router()

const DB = require("../mongoDB.js");
const Profile = require("../def/profile.js");
const Notifications = require("./../notifications.js");

DB.getDB.then((DB)=>{

    const getUserId = function(req){
        const user_sid = req.cookies.user_sid || req.query.user_sid || req.body.user_sid;
        return DB.ObjectID(user_sid);
    }

    const getProfileId = (req)=>{
        return DB.ObjectID(req.cookies.profile_id || req.query.profile_id || req.body.profile_id);
    }

    router.get("/mine", async (req, res) => {
        let userid = req.cookies.user_sid;
        let profiles = await DB.getUserProfiles(userid);
        return res.json({
            status: "ok",
            profiles
        });
    });

    router.get("/new", async (req, res) => { //Deprecated please use route post("/")
        let profile = {
            userid: getUserId(req),
            ... req.query.content
        };
        let profileObj = new Profile(profile);
        let r = await DB.newProfile(profileObj);
        return res.json({
            status: "ok",
            ... profileObj.toObj()
        });
    });

    router.post("/", async (req, res) => {
        let profile = {
            userid: getUserId(req),
            ... req.body.content
        };
        let profileObj = new Profile(profile);
        let r = await DB.newProfile(profileObj);
        return res.json({
            status: "ok",
            ... profileObj.toObj()
        });
    });

    router.post("/invite", async (req, res) => {
        const userid = getUserId(req);
        const name = req.body.name;
        const email = req.body.email;
        //validate email?
        if(!name || !email) return res.json({status: "incomplete request"});
        let r = await DB.newInvitation(userid, name, email);
        if(!r.toLowerCase){
            //send email invitation
            let senderProfile = await DB.getProfile(getProfileId(req));
            Notifications.youHaveAnInvitation(name, email, senderProfile);
            return res.json({
                status: "ok"
            });
        }
        return res.json({
            status: r
        });
    });

    router.get("/invite/:email", async (req, res) => {
        const userid = getUserId(req);
        const email = req.body.email;
        //validate email?
        if(email) return res.json({status: "provide valid email"});
        let r = await DB.getInvitation(email);
        if(!r) return res.json({status: "no invitation found with that email"});
        return res.json({status: "ok", ... r});
    });

    router.get("/groups", async (req, res) => {
        let groups = await DB.getGroups();
        return res.json({
            status: "ok",
            groups
        });
    });

    router.post("/groups", async (req, res) => {
        let profile = {
            userid: getUserId(req),
            isGroup: true,
            ... req.body
        };
        console.log("newGroup", profile)
        let profileObj = new Profile(profile);
        DB.newProfile(profileObj)
        return res.json({
            status: "ok",
            ... profileObj.toObj()
        });
    });

    router.get("/courses", async (req, res) => {
        let groups = await DB.getCourses();
        return res.json({
            status: "ok",
            groups
        });
    });

    router.post("/groups/accept", async (req, res) => {
        //This function should be called to accept the join request
        //of an user that attempt to join a private group.
        const groupid = getProfileId(req); //It needs to have this profile context
        const profileAcepted = DB.ObjectID(req.body.profileid);
        DB.acceptGroupJoinReq(profileAcepted, groupid);
        //Add Notification to accepted user
        return res.json({
            status: "ok"
        });
    });

    router.get("/groups/:id", async (req, res) => {
        const groupid = req.params.id;
        let groups = await DB.getGroup(groupid);
        return res.json({
            status: "ok",
            groups
        });
    });

    router.get("/groups/:id/subscribe", async (req, res) => {
        const groupid = req.params.id;
        const profileid = getProfileId(req);
        const isPrivate = await DB.isGroupPrivate(groupid);
        DB.subscribeToGroup(profileid, groupid, isPrivate);
        //Add notification to group owner
        return res.json({
            status: "ok"
        });
    });

    router.get("/groups/:id/unsubscribe", async (req, res) => {
        const groupid = req.params.id;
        const profileid = getProfileId(req);
        DB.unsubscribeToGroup(profileid, groupid);
        //Add notification to group owner
        return res.json({
            status: "ok"
        });
    });

    router.get("/search", async (req, res) => {
        let query = req.query.query;
        let profiles = await DB.getProfiles(query);
        return res.json({
            status: "ok",
            profiles
        });
    });

    router.post("/setData", (req, res) => {
        const key = req.body.key;
        const value = req.body.value;
        const profileid = getProfileId(req);
        DB.setData(profileid, key, value);
        return res.json({
            status: "ok",
        });
    });

    router.post("/myProfile", async (req, res) => {
        let profile = {
            userid: getUserId(req),
            profile: req.body
        };
        let profileObj = new Profile(profile); //validates profile
        DB.updateProfile(getProfileId(req), profileObj);
        return res.json({
            status: "ok"
        });
    });

    router.get("/:id", async (req, res) => {
        let profileId = req.params.id;
        let profile = await DB.getProfile(profileId);
        return res.json({
            status: "ok",
            ... profile
        });
    });

    router.get("/:id/follow", async (req, res) => {
        let followProfileId = req.params.id;
        const profileid = getProfileId(req);
        DB.followProfile(profileid, followProfileId);
        //Add notification to user
        return res.json({
            status: "ok"
        });
    });

    router.get("/:id/unfollow", async (req, res) => {
        let followProfileId = req.params.id;
        const profileid = getProfileId(req);
        DB.unfollowProfile(profileid, followProfileId);
        //Add notification to user
        return res.json({
            status: "ok"
        });
    });

});

module.exports = router