loopflow 0.12.16

Run steps and flows with coding agents
Documentation 
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use std::fmt;
use std::str::FromStr;

use uuid::Uuid;

#[derive(Debug, Clone, PartialEq, Eq, thiserror::Error)]
#[error("invalid id: {0}")]
pub struct IdError(String);

macro_rules! uuid_id {
    ($name:ident) => {
        #[derive(Debug, Clone, PartialEq, Eq, Hash)]
        pub struct $name(String);

        impl $name {
            pub fn new() -> Self {
                Self(Uuid::new_v4().to_string())
            }

            pub fn parse(value: &str) -> Result<Self, IdError> {
                Uuid::parse_str(value).map_err(|error| IdError(error.to_string()))?;
                Ok(Self(value.to_string()))
            }

            pub fn as_str(&self) -> &str {
                &self.0
            }
        }

        impl Default for $name {
            fn default() -> Self {
                Self::new()
            }
        }

        impl fmt::Display for $name {
            fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
                formatter.write_str(&self.0)
            }
        }

        impl FromStr for $name {
            type Err = IdError;

            fn from_str(value: &str) -> Result<Self, Self::Err> {
                Self::parse(value)
            }
        }

        impl From<$name> for String {
            fn from(id: $name) -> Self {
                id.0
            }
        }

        impl serde::Serialize for $name {
            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
            where
                S: serde::Serializer,
            {
                serializer.serialize_str(&self.0)
            }
        }

        impl<'de> serde::Deserialize<'de> for $name {
            fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
            where
                D: serde::Deserializer<'de>,
            {
                let value = String::deserialize(deserializer)?;
                value.parse().map_err(serde::de::Error::custom)
            }
        }

        impl rusqlite::ToSql for $name {
            fn to_sql(&self) -> rusqlite::Result<rusqlite::types::ToSqlOutput<'_>> {
                Ok(rusqlite::types::ToSqlOutput::from(self.0.as_str()))
            }
        }

        impl rusqlite::types::FromSql for $name {
            fn column_result(
                value: rusqlite::types::ValueRef<'_>,
            ) -> rusqlite::types::FromSqlResult<Self> {
                value
                    .as_str()?
                    .parse()
                    .map_err(|error| rusqlite::types::FromSqlError::Other(Box::new(error)))
            }
        }
    };
}

uuid_id!(WaveId);
uuid_id!(TraceId);
uuid_id!(ExecId);

#[cfg(test)]
mod tests {
    use super::{ExecId, TraceId, WaveId};

    #[test]
    fn ids_round_trip_as_uuid_strings() {
        let wave = WaveId::new();
        let encoded = serde_json::to_string(&wave).unwrap();
        assert_eq!(serde_json::from_str::<WaveId>(&encoded).unwrap(), wave);

        let _trace = TraceId::new();
        let _exec = ExecId::new();
    }
}