use crate::{
    DResult,
    models::item::Item,
    models::consent::{Consent, ConsentType, ConsentStatus},
    static_content::npc::npc_by_code,
    message_handler::user_commands::drop::consider_expire_job_for_item,
};
use mockall_double::double;
#[double] use crate::db::DBTrans;

pub mod comms;
pub mod combat;
pub mod skills;
pub mod capacity;
pub mod effect;

fn check_one_consent(consent: &Consent, action: &str, target: &Item) -> bool {
    if let Some((loctype, loccode)) = target.location.split_once("/") {
        if !consent.only_in.is_empty() {
            if loctype != "room" || !consent.only_in.iter().any(|v| v == loccode) {
                return false;
            }
        }
        if !consent.allow_private && loctype != "room" {
            return false;
        }
    } else {
        if !consent.only_in.is_empty() || !consent.allow_private {
            return false;
        }
    }

    if let Some(fight_consent) = consent.fight_consent.as_ref() {
        if fight_consent.status == ConsentStatus::PendingAdd {
            return false;
        }
        if !fight_consent.allow_pick && action == "pick" {
            return false;
        }
    }
    
    true
}

pub async fn check_consent(trans: &DBTrans, action: &str,
                           consent_type: &ConsentType,
                           by: &Item,
                           target: &Item) -> DResult<bool> {
    // Consent is only a factor on actions by players towards other players or npcs.
    if by.item_type != "player" || (target.item_type != "player" && target.item_type != "npc") {
        return Ok(true);
    }
    if target.item_type == "npc" {
        return Ok(match npc_by_code().get(target.item_code.as_str()) {
            None => false,
            Some(npc) => npc.player_consents.contains(consent_type)
        });
    }

    if target.item_code == by.item_code {
        return Ok(true)
    }
    
    trans.delete_expired_user_consent().await?;
    if let Some(consent) = trans.find_user_consent_by_parties_type(
        &target.item_code, &by.item_code, consent_type).await? {
        if check_one_consent(&consent, action, &target) {
            return Ok(true);
        }
    }

    trans.delete_expired_corp_consent().await?;
    if let Some(consent) = trans.find_corp_consent_by_user_parties_type(
        &target.item_code, &by.item_code, consent_type).await? {
        if check_one_consent(&consent, action, &target) {
            return Ok(true);
        }
    }
    
    Ok(false)
}

pub async fn destroy_container(trans: &DBTrans, container: &Item) -> DResult<()> {
    trans.delete_item(&container.item_type, &container.item_code).await?;
        
    for item in trans.find_items_by_location(
        &container.refstr()
    ).await?.into_iter() {
        let mut item_mut = (*item).clone();
        // We only update this to support consider_expire_job - it gets updated in bulk
        // by transfer_all_possession below.
        item_mut.location = container.location.clone();
        match capacity::check_item_capacity(trans, &container.location, item_mut.weight).await? {
            capacity::CapacityLevel::OverBurdened | capacity::CapacityLevel::AboveItemLimit =>
                trans.delete_item(&item_mut.item_type, &item_mut.item_code).await?,
            _ => consider_expire_job_for_item(trans, &item_mut).await?
        }
    }
    trans.transfer_all_possessions_code(
        &container.refstr(),
        &container.location).await?;
    Ok(())
}