import express from 'express';
import dotenv from 'dotenv';

import {RegisterNewUser, GetUserFromEmail, GetUserFromPubkey, GetKeypairFromEmail, Authneticate} from './database.js';

dotenv.config();

const app = express();

app.use((err,req,res,next)=>{
    console.error(err.stack);
    res.status(500).send("Something went wrong!");
})

//----------------------------------------------------------------------------------------------------------------------------------------------------------------


app.get("/register", async (req,res)=>{
    const {email, password} = req.query;

    if(!email || !password){
        res.status(403).json({error: "Missing credentials"});
        return;
    }

    const newUser = await RegisterNewUser(email,password);
    if(!newUser){
        res.status(403).json({error: "Email exists"});
    }

    res.status(201).json(newUser);
})

app.get("/login", async(req,res)=>{
    const {email, pubkey} = req.query;
    if(!email && !pubkey){
        res.status(403).json({error:"Neither email nor pubkey was sent"})
        return;
    }

    if(email){
        const user = await GetUserFromEmail(email);
        if(user){
            res.status(200).json(user);
        }else{
            res.status(404).json({error:"User couldnt be found"})
        }
    }else if(pubkey){
        const user = await GetUserFromPubkey(pubkey);
        if(user){
            res.status(200).json(user);
        }else{
            res.status(404).json({error:"User couldnt be found"})
        }
    }
})

app.get("/authenticate", async(req,res)=>{
    const {email, password} = req.query;
    if(!email || !password){
        res.status(403).json({error:"Credentials missing"})
        return;
    }

    const authResult = await Authneticate(email,password);
    if(authResult){
        res.status(200).json({authenticated: true})
    }else{
        res.status(403).json({authenticated: false})
    }
})

app.get("/getKeypairWithPassword", async(req,res)=>{
    const {email, password} = req.query;
    if(!email || !password){
        res.status(403).json({error:"Credentials missing"})
        return;
    }

    const authResult = await Authneticate(email,password);
    if(authResult){
        const user = await GetKeypairFromEmail(email);
        res.status(200).json(user)
    }else{
        res.status(403).json({authenticated: false})
    }
})

app.get("/getPubkey", async(req,res)=>{
    const {email}= req.query;

    if(!email){
        res.status(403).json({error: "Missing credentials"});
        return;
    }

    const user = await GetUserFromEmail(email);
    res.status(200).json(user);
})

app.get("/getKeypair", async(req,res)=>{
    const {email, apiKey}= req.query;

    if(!email || !apiKey){
        res.status(403).json({error: "Missing credentials"});
        return;
    }
    if(apiKey!= process.env.API_KEY){
        res.status(403).json({error: `Invalid Api Key`});
        console.log(`Provided api key: ${apiKey}`);
        console.log(`Correcte api key: ${process.env.API_KEY}`);
        return;
    }

    const user = await GetKeypairFromEmail(email);
    res.status(200).json(user);
})

//----------------------------------------------------------------------------------------------------------------------------------------------------------------


app.listen(process.env.EXPRESS_PORT, ()=>{
    console.log(`Server is listening on Port ${process.env.EXPRESS_PORT}`);
})