use chrono::NaiveDate;
use serde::Serialize;
use sqlx::SqlitePool;

#[derive(Serialize, Clone)]
pub struct Trip {
    id: i64,
    cox_id: i64,
    cox_name: String,
    trip_details_id: Option<i64>,
    planned_starting_time: String,
    max_people: i64,
    day: String,
    notes: Option<String>,
}

#[derive(Serialize)]
pub struct TripWithUser {
    #[serde(flatten)]
    trip: Trip,
    rower: Vec<String>,
}

impl Trip {
    pub async fn get_for_day(db: &SqlitePool, day: NaiveDate) -> Vec<TripWithUser> {
        let day = format!("{}", day);
        let trips = sqlx::query_as!(
            Trip,
            "
SELECT trip.id, cox_id, user.name as cox_name, trip_details_id, planned_starting_time, max_people, day, notes
FROM trip 
INNER JOIN trip_details ON trip.trip_details_id = trip_details.id
INNER JOIN user ON trip.cox_id = user.id
WHERE day=?
    ",
            day
        )
        .fetch_all(db)
        .await
        .unwrap(); //TODO: fixme
        let mut ret = Vec::new();
        for trip in trips {
            ret.push(TripWithUser {
                trip: trip.clone(),
                rower: Self::get_all_rower_for_id(db, trip.id).await,
            })
        }
        ret
    }

    async fn get_all_rower_for_id(db: &SqlitePool, id: i64) -> Vec<String> {
        let res = sqlx::query!(
            "
SELECT (SELECT name FROM user WHERE user_trip.user_id = user.id) as name FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM trip WHERE id = ?)
        ",
            id
        )
        .fetch_all(db)
        .await
        .unwrap(); //TODO: fixme
        let mut ret = Vec::new();
        for r in res {
            ret.push(r.name);
        }
        ret
    }

    pub async fn new_own(db: &SqlitePool, cox_id: i64, trip_details_id: i64) {
        sqlx::query!(
            "INSERT INTO trip (cox_id, trip_details_id) VALUES(?, ?)",
            cox_id,
            trip_details_id
        )
        .execute(db)
        .await
        .unwrap(); //TODO: fixme
    }

    /// Returns true if successfully inserted; false if not (e.g. because user is already
    /// participant
    pub async fn new_join(db: &SqlitePool, cox_id: i64, planned_event_id: i64) -> bool {
        sqlx::query!(
            "INSERT INTO trip (cox_id, planned_event_id) VALUES(?, ?)",
            cox_id,
            planned_event_id
        )
        .execute(db)
        .await
        .is_ok()
    }

    pub async fn delete(db: &SqlitePool, user_id: i64, planned_event_id: i64) {
        let _ = sqlx::query!(
            "DELETE FROM trip WHERE cox_id = ? AND planned_event_id = ?",
            user_id,
            planned_event_id
        )
        .execute(db)
        .await
        .is_ok();
    }

    //pub async fn delete(db: &SqlitePool, id: i64) {
    //    sqlx::query!("DELETE FROM planned_event WHERE id = ?", id)
    //        .execute(db)
    //        .await
    //        .unwrap(); //TODO: fixme
    //}
}