use chrono::NaiveDateTime;
use chrono::Utc;
use diesel::prelude::*;

use crate::database::schema::form;
use crate::database::schema::form::dsl::*;
use crate::database::structs::Form;
use crate::DbConn;

#[table_name = "form"]
#[derive(Serialize, Insertable)]
pub struct InsertableForm<'b> {
    pub created_at: NaiveDateTime,
    pub lastvisit_at: NaiveDateTime,
    pub token: &'b str,
    pub nc_username: &'b str,
    pub nc_password: &'b str,
}

impl Form {
    // gets a Form from a token.
    // also updates lastvisit_at.
    pub fn get_from_token(
        i_token: &str,
        conn: &DbConn,
    ) -> Result<Option<Form>, diesel::result::Error> {
        if let Some(formdata) = form
            .filter(token.eq(i_token))
            .first::<Form>(conn)
            .optional()?
        {
            match formdata.update_lastvisit(conn) {
                Ok(_) => Ok(Some(formdata)),
                Err(e) => Err(e),
            }
        } else {
            Ok(None)
        }
    }

    pub fn update_lastvisit(&self, conn: &DbConn) -> Result<usize, diesel::result::Error> {
        diesel::update(form.find(self.id))
            .set(lastvisit_at.eq(Utc::now().naive_utc()))
            .execute(conn)
    }

    pub fn insert<'b>(
        i_form: InsertableForm<'b>,
        conn: &DbConn,
    ) -> Result<InsertableForm<'b>, diesel::result::Error> {
        match diesel::insert_into(form).values(&i_form).execute(conn) {
            Ok(_) => Ok(i_form),
            Err(e) => Err(e),
        }
    }
}