use crate::constants::StaticConstraints;
use crate::controllers::HttpResult;
use crate::services::login_token_service::LoginToken;
use crate::services::rate_limiter_service::RatedAction;
use crate::services::{families_service, rate_limiter_service};
use actix_remote_ip::RemoteIP;
use actix_web::{web, HttpResponse};

#[derive(Debug, serde::Deserialize)]
pub struct CreateFamilyReq {
    name: String,
}

/// Create a new family
pub async fn create(req: web::Json<CreateFamilyReq>, token: LoginToken) -> HttpResult {
    if !StaticConstraints::default()
        .family_name_len
        .validate(&req.name)
    {
        return Ok(HttpResponse::BadRequest().body("Invalid family name!"));
    }

    let family = families_service::create(&req.name, token.user_id).await?;

    Ok(HttpResponse::Created().json(family))
}

#[derive(Debug, serde::Deserialize)]
pub struct JoinFamilyReq {
    code: String,
}

/// Join a family
pub async fn join(
    remote_ip: RemoteIP,
    req: web::Json<JoinFamilyReq>,
    token: LoginToken,
) -> HttpResult {
    // Rate limiting
    if rate_limiter_service::should_block_action(remote_ip.0, RatedAction::JoinFamily).await? {
        return Ok(HttpResponse::TooManyRequests().finish());
    }
    rate_limiter_service::record_action(remote_ip.0, RatedAction::JoinFamily).await?;

    let family = match families_service::get_by_invitation_code(&req.code).await {
        Ok(f) => f,
        Err(e) => {
            log::error!("Could not find family by invitation code! {e}");
            return Ok(HttpResponse::NotFound().finish());
        }
    };

    if families_service::is_member(family.id(), token.user_id).await? {
        log::error!(
            "Could not add {:?} to family {:?} because it is already a member of the family!",
            token.user_id,
            family.id()
        );
        return Ok(HttpResponse::Conflict().finish());
    }

    families_service::add_member(family.id(), token.user_id, false).await?;

    Ok(HttpResponse::Accepted().finish())
}