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// id               number      A unique number used to identify and reference a specific image.
// name             string      The display name of the image. This is shown in the web UI and is generally a descriptive title for the image in question.
// type             string      The kind of image, describing the duration of how long the image is stored. This is one of "snapshot", "temporary" or "backup".
// distribution     string      The base distribution used for this image.
// slug             nullable string A uniquely identifying string that is associated with each of the DigitalOcean-provided public images. These can be used to reference a public image as an alternative to the numeric id.
// public           boolean     A boolean value that indicates whether the image in question is public. An image that is public is available to all accounts. A non-public image is only accessible from your account.
// regions          array       An array of the regions that the image is available in. The regions are represented by their identifying slug values.
// min_disk_size    number      The minimum 'disk' required for a size to use this image.
use std::fmt;
use std::borrow::Cow;

use response::NamedResponse;
use response;

#[derive(Deserialize, Debug)]
pub struct Snapshot {
    pub id: f64,
    pub name: String,
    #[serde(rename = "type")]
    pub s_type: String,
    pub distribution: String,
    pub slug: Option<String>,
    pub public: bool,
    pub regions: Vec<String>,
    pub min_disk_size: f64
}

impl response::NotArray for Snapshot {}

impl fmt::Display for Snapshot {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
       write!(f, "ID: {:.0}\n\
                  Name: {}\n\
                  Type:{}\n\
                  Distribution:{}\n\
                  Slug:{}\n\
                  Public:{}\n\
                  Regions:{}\n\
                  Minimum Disk Size: {:.0} MB\n",
                self.id,
                self.name,
                self.s_type,
                self.distribution,
                if let Some(ref s) = self.slug { s.clone() } else { "None".to_owned() },
                self.public,
                self.regions.iter().fold(String::new(), |acc, s| acc + &format!(" {},", s)[..]),
                self.min_disk_size)
    }
}

pub type Snapshots = Vec<Snapshot>;

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