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// slug             string      A human-readable string that is used to uniquely identify each size.
// available        boolean     This is a boolean value that represents whether new Droplets can be created with this size.
// transfer         number      The amount of transfer bandwidth that is available for Droplets created in this size. This only counts traffic on the public interface. The value is given in terabytes.
// price_monthly    number      This attribute describes the monthly cost of this Droplet size if the Droplet is kept for an entire month. The value is measured in US dollars.
// price_hourly     number      This describes the price of the Droplet size as measured hourly. The value is measured in US dollars.
// memory           number      The amount of RAM allocated to Droplets created of this size. The value is represented in megabytes.
// vcpus            number      The number of virtual CPUs allocated to Droplets of this size.
// disk             number      The amount of disk space set aside for Droplets of this size. The value is represented in gigabytes.
// regions          array       An array containing the region slugs where this size is available for Droplet creates.

use std::fmt;
use std::borrow::Cow;

use response::NamedResponse;
use response;

#[derive(Deserialize, Debug)]
pub struct Size {
    slug: String,
    memory: f64,
    vcpus: f64,
    disk: f64,
    transfer: f64,
    price_monthly: f64,
    price_hourly: f64,
    regions: Vec<String>,
    available: bool,
}

impl response::NotArray for Size {}

impl fmt::Display for Size {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
       write!(f, "Slug: {}\n\
                  Available: {}\n\
                  Transfer Bandwidth: {} TB\n\
                  Monthly Price: ${}\n\
                  Hourly Price: ${}\n\
                  Memory: {} MB\n\
                  Virtual CPUs: {:.0}\n\
                  Disk Space: {} GB\n\
                  Sizes: {}",
                self.slug,
                self.available,
                self.transfer,
                self.price_monthly,
                self.price_hourly,
                self.memory,
                self.vcpus,
                self.disk,
                self.regions.iter().fold(String::new(), |acc, s| acc + &format!(" {},", s)[..]))

    }
}

impl NamedResponse for Size {
    fn name<'a>() -> Cow<'a, str> {
        "size".into()
    }
}

pub type Sizes = Vec<Size>;