module oauth

import json
import net.http

pub enum TokenPostType {
    form
    json
}

pub struct Context {
pub:
    token_url       string
    client_id       string
    client_secret   string
    token_post_type TokenPostType = .form
    redirect_uri    string
}

pub struct Request {
pub:
    client_id     string
    client_secret string
    code          string
    state         string
}

pub fn (ctx &Context) get_token(code string) string {
    oauth_request := Request{
        client_id:     ctx.client_id
        client_secret: ctx.client_secret
        code:          code
        //        state: csrf
    }

    js := json.encode(oauth_request)
    if ctx.token_post_type == .json {
        resp := http.post_json(ctx.token_url, js) or {
            //        app.info(err.msg())

            //        return app.redirect_to_index()
            return ''
        }
        println('OAUTH RESPONSE ${resp}')
        return resp.body
    } else {
        resp := http.post_form(ctx.token_url, {
            'client_id':     ctx.client_id
            'client_secret': ctx.client_secret
            'code':          code
            'grant_type':    'authorization_code'
            //'scope':         bot
            'redirect_uri':  ctx.redirect_uri
        }) or {
            //        app.info(err.msg())

            //        return app.redirect_to_index()
            return ''
        }
        println('OAUTH RESPONSE ${resp}')
        return resp.body
    }
    return ''
}