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pub mod container;

use ipc_channel::ipc;
use serde::{Deserialize, Serialize};
use std::collections::{HashMap, HashSet};

use crate::{types::*, util::error::*};

#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq, Hash)]
#[serde(rename_all = "snake_case")]
pub enum Dependency {
	Fetch { name: String, sha256: StringHash },
	Task { output: ArchiveHash, path: String },
}

#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Task {
	pub label: String,
	pub command: String,
	pub inherit: Vec<LayerHash>,
	pub depends: HashSet<Dependency>,
	pub outputs: HashMap<String, String>,
}

#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct TaskOutput {
	pub input_hash: InputHash,
	pub layer: Option<LayerHash>,
	pub outputs: HashMap<String, ArchiveHash>,
}

pub trait Runner {
	fn spawn(&self, task: &Task) -> ipc::IpcReceiver<Result<TaskOutput>>;
}