systemprompt-models 0.65.0

Foundation data models for systemprompt.io AI governance infrastructure. Shared DTOs, config, and domain types consumed by every layer of the MCP governance pipeline.
Documentation 
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//! Hook vocabulary: lifecycle events and categories.
//!
//! [`HookEvent`] enumerates the agent lifecycle points a hook can bind to and
//! [`HookCategory`] separates platform hooks from custom ones. Both travel in
//! the signed bridge manifest, so they live beside the other runtime models.
//!
//! Copyright (c) systemprompt.io — Business Source License 1.1.
//! See <https://systemprompt.io> for licensing details.

use std::fmt;
use std::str::FromStr;

use serde::{Deserialize, Serialize};

use crate::errors::ParseEnumError;

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(rename_all = "PascalCase")]
pub enum HookEvent {
    PreToolUse,
    PostToolUse,
    PostToolUseFailure,
    SessionStart,
    SessionEnd,
    UserPromptSubmit,
    Notification,
    Stop,
    SubagentStart,
    SubagentStop,
}

impl HookEvent {
    pub const ALL_VARIANTS: &'static [Self] = &[
        Self::PreToolUse,
        Self::PostToolUse,
        Self::PostToolUseFailure,
        Self::SessionStart,
        Self::SessionEnd,
        Self::UserPromptSubmit,
        Self::Notification,
        Self::Stop,
        Self::SubagentStart,
        Self::SubagentStop,
    ];

    pub const fn as_str(&self) -> &'static str {
        match self {
            Self::PreToolUse => "PreToolUse",
            Self::PostToolUse => "PostToolUse",
            Self::PostToolUseFailure => "PostToolUseFailure",
            Self::SessionStart => "SessionStart",
            Self::SessionEnd => "SessionEnd",
            Self::UserPromptSubmit => "UserPromptSubmit",
            Self::Notification => "Notification",
            Self::Stop => "Stop",
            Self::SubagentStart => "SubagentStart",
            Self::SubagentStop => "SubagentStop",
        }
    }
}

impl fmt::Display for HookEvent {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.as_str())
    }
}

impl FromStr for HookEvent {
    type Err = ParseEnumError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
            "PreToolUse" => Ok(Self::PreToolUse),
            "PostToolUse" => Ok(Self::PostToolUse),
            "PostToolUseFailure" => Ok(Self::PostToolUseFailure),
            "SessionStart" => Ok(Self::SessionStart),
            "SessionEnd" => Ok(Self::SessionEnd),
            "UserPromptSubmit" => Ok(Self::UserPromptSubmit),
            "Notification" => Ok(Self::Notification),
            "Stop" => Ok(Self::Stop),
            "SubagentStart" => Ok(Self::SubagentStart),
            "SubagentStop" => Ok(Self::SubagentStop),
            _ => Err(ParseEnumError::new("hook_event", s)),
        }
    }
}

#[derive(Debug, Clone, Copy, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(rename_all = "lowercase")]
pub enum HookCategory {
    System,
    #[default]
    Custom,
}

impl HookCategory {
    pub const fn as_str(&self) -> &'static str {
        match self {
            Self::System => "system",
            Self::Custom => "custom",
        }
    }
}

impl fmt::Display for HookCategory {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.as_str())
    }
}

impl FromStr for HookCategory {
    type Err = ParseEnumError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
            "system" => Ok(Self::System),
            "custom" => Ok(Self::Custom),
            _ => Err(ParseEnumError::new("hook_category", s)),
        }
    }
}