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use core::str::FromStr;

use ibc_core_host_types::identifiers::ClientId;
use ibc_primitives::prelude::*;
use ibc_primitives::Signer;
use ibc_proto::ibc::lightclients::wasm::v1::MsgMigrateContract as RawMsgMigrateContract;
use ibc_proto::Protobuf;

use crate::error::Error;
use crate::Bytes;

pub const MIGRATE_CONTRACT_TYPE_URL: &str = "/ibc.lightclients.wasm.v1.MsgMigrateContract";

/// Defines the message type for migrating a Wasm contract on the chain.
#[derive(Clone, PartialEq, Debug, Eq)]
pub struct MsgMigrateContract {
    pub signer: Signer,
    pub client_id: ClientId,
    pub checksum: Bytes,
    pub msg: Bytes,
}

impl Protobuf<RawMsgMigrateContract> for MsgMigrateContract {}

impl From<MsgMigrateContract> for RawMsgMigrateContract {
    fn from(value: MsgMigrateContract) -> Self {
        Self {
            signer: value.signer.to_string(),
            client_id: value.client_id.to_string(),
            checksum: value.checksum,
            msg: value.msg,
        }
    }
}

impl TryFrom<RawMsgMigrateContract> for MsgMigrateContract {
    type Error = Error;

    fn try_from(value: RawMsgMigrateContract) -> Result<Self, Self::Error> {
        Ok(Self {
            signer: Signer::from(value.signer),
            client_id: ClientId::from_str(&value.client_id)?,
            checksum: value.checksum,
            msg: value.msg,
        })
    }
}

#[cfg(test)]
mod tests {
    use rstest::rstest;

    use super::*;

    #[rstest]
    #[case("signer", "08-wasm-2", b"checksum", b"msg")]
    fn test_roundtrip(
        #[case] signer: &str,
        #[case] client_id: &str,
        #[case] checksum: &[u8],
        #[case] msg: &[u8],
    ) {
        let raw_msg = RawMsgMigrateContract {
            signer: signer.to_string(),
            client_id: client_id.to_string(),
            checksum: checksum.to_vec(),
            msg: msg.to_vec(),
        };
        assert_eq!(
            RawMsgMigrateContract::from(MsgMigrateContract::try_from(raw_msg.clone()).unwrap()),
            raw_msg,
        )
    }
}