yao 0.1.4

a fast, tiny, extensiable workflow engine
Documentation 
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use super::Job;
use crate::{utils, ActError, ActResult, ShareLock, TaskState, Vars};
use serde::{Deserialize, Serialize};
use serde_yaml::Value;
use std::collections::HashMap;

#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct Workflow {
    #[serde(default)]
    pub id: String,

    #[serde(default)]
    pub ver: String,

    #[serde(default)]
    pub name: String,

    #[serde(default)]
    pub jobs: Vec<Job>,

    #[serde(default)]
    pub env: HashMap<String, Value>,

    #[serde(default)]
    pub outputs: HashMap<String, Value>,

    #[serde(default)]
    pub on: HashMap<String, Value>,

    #[serde(skip)]
    pub(crate) state: ShareLock<TaskState>,
    #[serde(skip)]
    pub(crate) start_time: ShareLock<i64>,
    #[serde(skip)]
    pub(crate) end_time: ShareLock<i64>,

    #[serde(default)]
    pub(crate) biz_id: String,

    #[serde(skip)]
    pub(crate) share_outputs: ShareLock<HashMap<String, Value>>,
}

impl Workflow {
    pub fn from_str(s: &str) -> ActResult<Self> {
        let workflow = serde_yaml::from_str::<Workflow>(s);
        match workflow {
            Ok(v) => Ok(v),
            Err(e) => Err(ActError::ParseError(format!("{}", e))),
        }
    }

    pub fn set_env(&mut self, vars: Vars) {
        for (name, value) in vars {
            self.env
                .entry(name)
                .and_modify(|v| *v = value.clone())
                .or_insert(value);
        }
    }

    pub fn outputs(&self) -> HashMap<String, Value> {
        self.share_outputs.read().unwrap().clone()
    }

    pub fn tree(&self) {
        utils::log::tree(self).expect("workflow: tree output");
    }

    pub fn cost(&self) -> i64 {
        if self.state().is_completed() {
            return self.end_time() - self.start_time();
        }

        0
    }

    pub fn job(&self, id: &str) -> Option<&Job> {
        match self.jobs.iter().find(|job| job.id == id) {
            Some(job) => {
                job.set_workflow(Box::new(self.clone()));
                Some(job)
            }
            None => None,
        }
    }

    pub fn biz_id(&self) -> String {
        self.biz_id.clone()
    }

    pub fn set_biz_id(&mut self, biz_id: &str) {
        self.biz_id = biz_id.to_string();
    }

    pub fn to_string<'a>(&self) -> ActResult<String> {
        match serde_yaml::to_string(self) {
            Ok(s) => Ok(s),
            Err(e) => Err(ActError::ParseError(e.to_string())),
        }
    }
}