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use std::collections::BTreeMap;
use anyhow::Error;
use crate::types::util::IPFSHash;
use crate::types::util::IPNSHash;
use crate::types::util::MimeType;
use crate::types::util::Timestamp;
use crate::types::payload::Payload;
use crate::types::payload::LoadedPayload;
use crate::model::Model;
#[derive(Serialize, Deserialize, Debug)]
pub struct Content {
//
//
// Metadata about the content
// --------------------------
//
// This metadata should be added to each block version. It is a small amount of bytes, but it
// makes the aggregation much simpler.
//
// In v2 of the API, we might change this and put all this meta-information into variants of
// `Payload`, if we find that aggregation is fast enough.
//
/// A list of IPNS hashes which are posting to this chain (so if a client has one profile
/// node, it can find the latest profile nodes from all devices a user posts from)
#[serde(rename = "devices")]
devices: Vec<IPNSHash>,
/// Timestamp (UNIX timestamp) when this was created. Can be left out.
#[serde(rename = "timestamp")]
#[serde(default)]
timestamp: Option<Timestamp>,
/// The payload of the content block
#[serde(rename = "payload")]
payload: Payload,
}
impl Content {
pub fn new(devices: Vec<IPNSHash>, timestamp: Option<Timestamp>, payload: Payload) -> Content {
Content { devices, timestamp, payload }
}
pub fn devices(&self) -> &Vec<IPNSHash> {
&self.devices
}
pub fn timestamp(&self) -> Option<&Timestamp> {
self.timestamp.as_ref()
}
pub fn payload(&self) -> &Payload {
&self.payload
}
pub(crate) fn push_device(&mut self, dev: IPNSHash) {
self.devices.push(dev);
}
pub async fn load(self, r: &Model) -> Result<LoadedContent, Error> {
Ok({
LoadedContent {
devices: self.devices,
timestamp: self.timestamp,
payload: self.payload.load(r).await?
}
})
}
}
impl AsRef<Content> for Content {
fn as_ref(&self) -> &Self {
&self
}
}
#[derive(Debug)]
pub struct LoadedContent {
devices: Vec<IPNSHash>,
timestamp: Option<Timestamp>,
payload: LoadedPayload,
}
impl LoadedContent {
pub fn devices(&self) -> &Vec<IPNSHash> {
&self.devices
}
pub fn timestamp(&self) -> Option<&Timestamp> {
self.timestamp.as_ref()
}
pub fn payload(&self) -> &LoadedPayload {
&self.payload
}
}
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