lrzcc 1.7.1

Rust client library for the LRZ-specific features of the Openstack-based LRZ Compute Cloud.
Documentation
use crate::common::{request, request_bare, SerializableNone};
use crate::error::ApiError;
use anyhow::Context;
use lrzcc_wire::resources::{
    Flavor, FlavorCreateData, FlavorDetailed, FlavorImport, FlavorListParams,
    FlavorModifyData, FlavorUsage, FlavorUsageAggregate,
};
use reqwest::blocking::Client;
use reqwest::Url;
use reqwest::{Method, StatusCode};
use std::rc::Rc;

pub struct FlavorApi {
    pub url: String,
    pub client: Rc<Client>,
}

#[derive(Debug)]
pub struct FlavorListRequest {
    url: String,
    client: Rc<Client>,

    params: FlavorListParams,
}

impl FlavorListRequest {
    pub fn new(url: &str, client: &Rc<Client>) -> Self {
        Self {
            url: url.to_string(),
            client: Rc::clone(client),

            params: FlavorListParams {
                all: None,
                group: None,
            },
        }
    }

    pub fn all(&mut self) -> &mut Self {
        self.params.all = Some(true);
        self
    }

    pub fn group(&mut self, group: u32) -> &mut Self {
        self.params.group = Some(group);
        self
    }

    pub fn send(&self) -> Result<Vec<Flavor>, ApiError> {
        let params = serde_urlencoded::to_string(&self.params)
            .context("Failed to encode URL parameters")?;
        let url = if params.is_empty() {
            self.url.clone()
        } else {
            format!("{}?{}", self.url, params)
        };
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }
}

pub struct FlavorCreateRequest {
    url: String,
    client: Rc<Client>,

    data: FlavorCreateData,
}

impl FlavorCreateRequest {
    pub fn new(
        url: &str,
        client: &Rc<Client>,
        name: String,
        openstack_id: String,
    ) -> Self {
        Self {
            url: url.to_string(),
            client: Rc::clone(client),
            data: FlavorCreateData::new(name, openstack_id),
        }
    }

    pub fn group(&mut self, group: u32) -> &mut Self {
        self.data.group = Some(group);
        self
    }

    pub fn weight(&mut self, weight: u32) -> &mut Self {
        self.data.weight = Some(weight);
        self
    }

    pub fn send(&self) -> Result<FlavorDetailed, ApiError> {
        request(
            &self.client,
            Method::POST,
            &self.url,
            Some(&self.data),
            StatusCode::CREATED,
        )
    }
}

pub struct FlavorModifyRequest {
    url: String,
    client: Rc<Client>,

    data: FlavorModifyData,
}

impl FlavorModifyRequest {
    pub fn new(url: &str, client: &Rc<Client>, id: u32) -> Self {
        Self {
            url: url.to_string(),
            client: Rc::clone(client),
            data: FlavorModifyData::new(id),
        }
    }

    pub fn name(&mut self, name: String) -> &mut Self {
        self.data.name = Some(name);
        self
    }

    pub fn openstack_id(&mut self, openstack_id: String) -> &mut Self {
        self.data.openstack_id = Some(openstack_id);
        self
    }

    pub fn group(&mut self, group: u32) -> &mut Self {
        self.data.group = Some(Some(group));
        self
    }

    pub fn no_group(&mut self) -> &mut Self {
        self.data.group = Some(None);
        self
    }

    pub fn weight(&mut self, weight: u32) -> &mut Self {
        self.data.weight = Some(weight);
        self
    }

    pub fn send(&self) -> Result<Flavor, ApiError> {
        request(
            &self.client,
            Method::PATCH,
            &self.url,
            Some(&self.data),
            StatusCode::OK,
        )
    }
}

pub struct FlavorUsageRequest {
    url: String,
    client: Rc<Client>,

    user: Option<u32>,
    project: Option<u32>,
    all: bool,
    aggregate: bool,
}

impl FlavorUsageRequest {
    pub fn new(url: &str, client: &Rc<Client>) -> Self {
        Self {
            url: url.to_string(),
            client: Rc::clone(client),

            user: None,
            project: None,
            all: false,
            aggregate: false,
        }
    }

    pub fn params(&self) -> Vec<(&str, String)> {
        let mut params = Vec::new();
        if let Some(user) = self.user {
            params.push(("user", user.to_string()));
        } else if let Some(project) = self.project {
            params.push(("project", project.to_string()));
        } else if self.all {
            params.push(("all", "1".to_string()));
        }
        if self.aggregate {
            params.push(("aggregate", "1".to_string()));
        }
        params
    }

    pub fn user(&mut self, user: u32) -> Result<Vec<FlavorUsage>, ApiError> {
        self.user = Some(user);
        self.aggregate = false;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn user_aggregate(
        &mut self,
        user: u32,
    ) -> Result<Vec<FlavorUsageAggregate>, ApiError> {
        self.user = Some(user);
        self.aggregate = true;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn project(
        &mut self,
        project: u32,
    ) -> Result<Vec<FlavorUsage>, ApiError> {
        self.project = Some(project);
        self.aggregate = false;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn project_aggregate(
        &mut self,
        project: u32,
    ) -> Result<Vec<FlavorUsageAggregate>, ApiError> {
        self.project = Some(project);
        self.aggregate = true;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn all(&mut self) -> Result<Vec<FlavorUsage>, ApiError> {
        self.all = true;
        self.aggregate = false;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn all_aggregate(
        &mut self,
    ) -> Result<Vec<FlavorUsageAggregate>, ApiError> {
        self.all = true;
        self.aggregate = true;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn mine(&mut self) -> Result<Vec<FlavorUsage>, ApiError> {
        self.aggregate = false;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    // TODO this causes a http 500 error
    pub fn mine_aggregate(
        &mut self,
    ) -> Result<Vec<FlavorUsageAggregate>, ApiError> {
        // TODO use Url.join
        self.aggregate = true;
        let url = Url::parse_with_params(self.url.as_str(), self.params())
            .context("Could not parse URL GET parameters.")?;
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }
}

impl FlavorApi {
    pub fn new(base_url: &str, client: &Rc<Client>) -> FlavorApi {
        FlavorApi {
            url: format!("{}/resources/flavors", base_url),
            client: Rc::clone(client),
        }
    }

    pub fn list(&self) -> FlavorListRequest {
        FlavorListRequest::new(self.url.as_ref(), &self.client)
    }

    pub fn get(&self, id: u32) -> Result<FlavorDetailed, ApiError> {
        // TODO use Url.join
        let url = format!("{}/{}", self.url, id);
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn create(
        &self,
        name: String,
        openstack_id: String,
    ) -> FlavorCreateRequest {
        // TODO use Url.join
        let url = format!("{}/", self.url);
        FlavorCreateRequest::new(url.as_ref(), &self.client, name, openstack_id)
    }

    pub fn modify(&self, id: u32) -> FlavorModifyRequest {
        // TODO use Url.join
        let url = format!("{}/{}/", self.url, id);
        FlavorModifyRequest::new(url.as_ref(), &self.client, id)
    }

    pub fn delete(&self, id: u32) -> Result<(), ApiError> {
        // TODO use Url.join
        let url = format!("{}/{}/", self.url, id);
        request_bare(
            &self.client,
            Method::DELETE,
            url.as_str(),
            SerializableNone!(),
            StatusCode::NO_CONTENT,
        )?;
        Ok(())
    }

    pub fn import(&self) -> Result<FlavorImport, ApiError> {
        // TODO use Url.join
        let url = format!("{}/import/", self.url);
        request(
            &self.client,
            Method::GET,
            url.as_str(),
            SerializableNone!(),
            StatusCode::OK,
        )
    }

    pub fn usage(&self) -> FlavorUsageRequest {
        let url = format!("{}/usage/", self.url);
        FlavorUsageRequest::new(url.as_ref(), &self.client)
    }
}