/**
    This file relates to anything that directly interacts with teh wolves API
 */


// #[derive(Debug, Clone, sqlx::FromRow)]
// pub struct Committees {
//     pub id: i64,
//     pub name: String,
//     pub link: String,
//     pub members: Vec<i64>,
// }

/**
  This is getting data for Clubs and Socs
*/
pub mod cns {
  use crate::set_roles::update_server;
  use std::collections::BTreeMap;
  use serde::{Deserialize, Serialize};
  use serenity::client::Context;
  use serenity::model::id::GuildId;
  use sqlx::{Pool, Sqlite};
  use crate::Config;
  use crate::common::database::{get_server_config_bulk, DataBase, ServerMembers, ServerMembersWolves, Servers, Wolves};

  #[derive(Deserialize, Serialize, Debug)]
  struct WolvesResultUser {
    committee: String,
    member_id: String,
    first_name: String,
    last_name: String,
    contact_email: String,
    opt_in_email: String,
    student_id: Option<String>,
    note: Option<String>,
    expiry: String,
    requested: String,
    approved: String,
    sitename: String,
    domain: String,
  }

  #[derive(Deserialize, Serialize, Debug)]
  struct WolvesResult {
    success: i8,
    result: Vec<WolvesResultUser>,
  }

  #[derive(Deserialize, Serialize, Debug)]
  struct WolvesResultLocal {
    pub id_wolves: String,
    pub email: String,
    pub expiry: String,
  }
  pub async fn get_wolves(ctx: &Context) {
    let db_lock = {
      let data_read = ctx.data.read().await;
      data_read.get::<DataBase>().expect("Expected Database in TypeMap.").clone()
    };
    let db = db_lock.read().await;

    let config_lock = {
      let data_read = ctx.data.read().await;
      data_read.get::<Config>().expect("Expected Config in TypeMap.").clone()
    };
    let config = config_lock.read().await;

    for server_config in get_server_config_bulk(&db).await {
      let Servers {
        server,
        wolves_api,
        ..
      } = &server_config;

      let existing_tmp = get_server_member(&db, server).await;
      let existing = existing_tmp.iter().map(|data| (data.id_wolves, data)).collect::<BTreeMap<_, _>>();

      // list of users that need to be updated for this server
      let mut user_to_update = vec![];
      for user in get_wolves_sub(&config, wolves_api).await {
        let id = user.member_id.parse::<u64>().unwrap_or_default();
        match existing.get(&(id as i64)) {
          None => {
            // user does not exist already, add everything
            add_users_wolves(&db, &user).await;
            add_users_server_members(&db, server, &user).await;
          }
          Some(old) => {
            // always update wolves table, in case data has changed
            add_users_wolves(&db, &user).await;
            if old.expiry != user.expiry {
              add_users_server_members(&db, server, &user).await;

              if let Some(discord_id) = old.discord {
                user_to_update.push(discord_id);
              }
            }
          }
        }
      }

      if !user_to_update.is_empty() {
        update_server(ctx, &server_config, &[], &user_to_update).await;
      }
    }
  }

  async fn get_server_member(db: &Pool<Sqlite>, server: &GuildId) -> Vec<ServerMembersWolves> {
    sqlx::query_as::<_, ServerMembersWolves>(
      r#"
      SELECT *
      FROM server_members
      JOIN wolves USING (id_wolves)
      WHERE (
        server = ?
        AND discord IS NOT NULL
      )
      "#,
    )
    .bind(*server.as_u64() as i64)
    .fetch_all(db)
    .await
    .unwrap_or_default()
  }

  async fn get_wolves_sub(config: &Config, wolves_api: &str) -> Vec<WolvesResultUser> {
    if config.wolves_url.is_empty() {
      return vec![];
    }

    // get wolves data
    if let Ok(mut res) = surf::post(&config.wolves_url).header("X-AM-Identity", wolves_api).await {
      if let Ok(WolvesResult {
        success,
        result,
      }) = res.body_json().await
      {
        if success != 1 {
          return vec![];
        }

        return result;
      }
    }

    vec![]
  }

  async fn add_users_wolves(db: &Pool<Sqlite>, user: &WolvesResultUser) {
    // expiry
    match sqlx::query_as::<_, Wolves>(
      "
      INSERT INTO wolves (id_wolves, email)
      VALUES ($1, $2)
      ON CONFLICT(id_wolves) DO UPDATE SET email = $2
    ",
    )
    .bind(&user.member_id)
    .bind(&user.contact_email)
    .fetch_optional(db)
    .await
    {
      Ok(_) => {}
      Err(e) => {
        println!("Failure to insert into Wolves {:?}", user);
        println!("{:?}", e);
      }
    }
  }
  async fn add_users_server_members(db: &Pool<Sqlite>, server: &GuildId, user: &WolvesResultUser) {
    match sqlx::query_as::<_, ServerMembers>(
      "
      INSERT OR REPLACE INTO server_members (server, id_wolves, expiry)
      VALUES (?1, ?2, ?3)
    ",
    )
    .bind(*server.as_u64() as i64)
    .bind(&user.member_id)
    .bind(&user.expiry)
    .fetch_optional(db)
    .await
    {
      Ok(_) => {}
      Err(e) => {
        println!("Failure to insert into ServerMembers {}  {:?}", server.as_u64(), user);
        println!("{:?}", e);
      }
    }
  }
}

/**
  Get and store the data on C&S committees
*/
pub mod committees {}

/**
get the data for an individual user
*/
pub mod individual {}