/*
 * Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
use std::str::FromStr;

use actix_identity::Identity;
use actix_web::{web, HttpResponse, Responder};
use futures::future::try_join_all;
use serde::{Deserialize, Serialize};
use uuid::Uuid;

use super::get_random;
use super::get_uuid;
use crate::errors::*;
use crate::AppData;

pub mod routes {
    pub struct Benches {
        pub submit: &'static str,
    }

    impl Benches {
        pub const fn new() -> Benches {
            let submit = "/api/v1/benches";
            Benches { submit }
        }
    }
}

pub fn services(cfg: &mut web::ServiceConfig) {
    cfg.service(submit);
}

#[derive(Serialize, Deserialize)]
struct Bench {
    duration: f32,
    difficulty: i32,
}

#[derive(Serialize, Deserialize)]
struct Submission {
    device_user_provided: String,
    device_software_recognised: String,
    threads: i32,
    benches: Vec<Bench>,
}

#[my_codegen::post(
    path = "crate::V1_API_ROUTES.benches.submit",
    wrap = "crate::CheckLogin"
)]
async fn submit(
    data: AppData,
    id: Identity,
    payload: web::Json<Submission>,
) -> ServiceResult<impl Responder> {
    let username = id.identity().unwrap();

    let user_id = Uuid::from_str(&username).unwrap();
    let payload = payload.into_inner();

    sqlx::query!("INSERT INTO survey_responses (user_id, device_user_provided, device_software_recognised,
     threads) VALUES ($1, $2, $3, $4)", &user_id, &payload.device_user_provided,
     &payload.device_software_recognised, &payload.threads).execute(&data.db).await?;

    struct ID {
        id: i32,
    }

    let resp_id = sqlx::query_as!(
        ID,
        "SELECT ID FROM survey_responses 
     WHERE user_id = $1 AND device_software_recognised = $2",
        &user_id,
        &payload.device_software_recognised
    )
    .fetch_one(&data.db)
    .await?;

    let mut futs = Vec::with_capacity(payload.benches.len());

    for bench in payload.benches.iter() {
        let fut = sqlx::query!(
            "INSERT INTO survey_benches 
                (resp_id, difficulty, duration) VALUES ($1, $2, $3)",
            &resp_id.id,
            &bench.difficulty,
            bench.duration
        )
        .execute(&data.db);

        futs.push(fut);
    }

    let submitions_id = get_uuid();

    let fut = sqlx::query!(
        "INSERT INTO survey_response_tokens (resp_id, user_id, id)
    VALUES ($1, $2, $3)",
        &resp_id.id,
        &user_id,
        &submitions_id
    )
    .execute(&data.db);

    futs.push(fut);

    try_join_all(futs).await?;

    Ok(HttpResponse::Ok())
}