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use crate::{
    state::{ACCOUNTS, CLIENT_PROXY, PENDING, PROCESSING_PACKET, RESULTS},
    Host, HostError,
};
use abstract_sdk::{
    base::{Handler, ReplyEndpoint},
    os::{
        abstract_ica::{DispatchResponse, RegisterResponse, StdAck},
        ibc_host::PacketMsg,
    },
};
use cosmwasm_std::{DepsMut, Empty, Env, Reply, Response};
use cw_utils::parse_reply_instantiate_data;

pub const RECEIVE_DISPATCH_ID: u64 = 1234;
pub const INIT_CALLBACK_ID: u64 = 7890;

impl<
        Error: From<cosmwasm_std::StdError> + From<HostError> + From<abstract_sdk::AbstractSdkError>,
        CustomInitMsg,
        CustomExecMsg,
        CustomQueryMsg,
        CustomMigrateMsg,
        ReceiveMsg,
    > ReplyEndpoint
    for Host<Error, CustomInitMsg, CustomExecMsg, CustomQueryMsg, CustomMigrateMsg, ReceiveMsg>
{
    fn reply(mut self, deps: DepsMut, env: Env, msg: Reply) -> Result<Response, Self::Error> {
        let id = msg.id;
        let maybe_handler = self.maybe_reply_handler(id);
        if let Some(reply_fn) = maybe_handler {
            reply_fn(deps, env, self, msg)
        } else {
            let (packet, channel) = PROCESSING_PACKET.load(deps.storage)?;
            PROCESSING_PACKET.remove(deps.storage);
            let PacketMsg {
                client_chain,
                os_id,
                ..
            } = packet;
            let client_proxy_addr = CLIENT_PROXY.load(deps.storage, (&channel, os_id))?;
            let local_proxy_addr = ACCOUNTS.load(deps.storage, (&channel, os_id))?;
            self.proxy_address = Some(local_proxy_addr);
            // send everything back to client
            let send_back_msg =
                self.send_all_back(deps.as_ref(), env, client_proxy_addr, client_chain)?;

            Ok(Response::new()
                .add_message(send_back_msg)
                .set_data(StdAck::success(&Empty {})))
        }
    }
}

pub fn reply_dispatch_callback<
    Error: From<cosmwasm_std::StdError> + From<HostError> + From<abstract_sdk::AbstractSdkError>,
    CustomExecMsg,
    CustomInitMsg,
    CustomQueryMsg,
    CustomMigrateMsg,
    ReceiveMsg,
>(
    deps: DepsMut,
    _env: Env,
    _host: Host<Error, CustomInitMsg, CustomExecMsg, CustomQueryMsg, CustomMigrateMsg, ReceiveMsg>,
    reply: Reply,
) -> Result<Response, Error> {
    // add the new result to the current tracker
    let mut results = RESULTS.load(deps.storage)?;
    results.push(reply.result.unwrap().data.unwrap_or_default());
    RESULTS.save(deps.storage, &results)?;

    // update result data if this is the last
    let data = StdAck::success(&DispatchResponse { results });
    Ok(Response::new().set_data(data))
}

pub fn reply_init_callback<
    Error: From<cosmwasm_std::StdError> + From<HostError> + From<abstract_sdk::AbstractSdkError>,
    CustomExecMsg,
    CustomInitMsg,
    CustomQueryMsg,
    CustomMigrateMsg,
    ReceiveMsg,
>(
    deps: DepsMut,
    _env: Env,
    _host: Host<Error, CustomInitMsg, CustomExecMsg, CustomQueryMsg, CustomMigrateMsg, ReceiveMsg>,

    reply: Reply,
) -> Result<Response, Error> {
    // we use storage to pass info from the caller to the reply
    let (channel, os_id) = PENDING.load(deps.storage)?;
    PENDING.remove(deps.storage);

    // parse contract info from data
    let raw_addr = parse_reply_instantiate_data(reply)
        .map_err(HostError::from)?
        .contract_address;
    let contract_addr = deps.api.addr_validate(&raw_addr)?;

    if ACCOUNTS
        .may_load(deps.storage, (&channel, os_id))?
        .is_some()
    {
        return Err(HostError::ChannelAlreadyRegistered.into());
    }
    ACCOUNTS.save(deps.storage, (&channel, os_id), &contract_addr)?;
    let data = StdAck::success(&RegisterResponse {
        account: contract_addr.into_string(),
    });
    Ok(Response::new().set_data(data))
}