use crate::logsdb::RecentSessionsRow;
use rocket::serde::Serialize;
use std::collections::BTreeSet;

#[derive(Serialize)]
#[serde(crate = "rocket::serde")]
pub struct RecentSessionsTableRow {
    start: String,
    duration: String,
    count: i64,
    refer: Option<String>,
    origin_country: Option<String>,
    origin_city: Option<String>,
    ua: String,
    alltags: String,
    paths: String,
}

fn make_unique_from_csstring<S: AsRef<str>>(s: S) -> String {
    BTreeSet::from_iter(s.as_ref().split(", "))
        .into_iter()
        .collect::<Vec<&str>>()
        .join(", ")
}

impl RecentSessionsTableRow {
    pub fn from_row<F: time::formatting::Formattable>(
        r: RecentSessionsRow,
        off: time::UtcOffset,
        timeformat: &F,
    ) -> RecentSessionsTableRow {
        RecentSessionsTableRow {
            start: time::OffsetDateTime::from_unix_timestamp(r.start)
                .unwrap_or(time::OffsetDateTime::UNIX_EPOCH)
                .to_offset(off)
                .format(&timeformat)
                .unwrap_or(String::new()),
            duration: format!("{:.0}", time::Duration::seconds(r.duration)),
            count: r.count,
            refer: r.refer,
            origin_country: r.origin_country,
            origin_city: r.origin_city,
            ua: r.ua,
            alltags: make_unique_from_csstring(r.alltags),
            paths: make_unique_from_csstring(r.paths),
        }
    }
}