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use std::time::{SystemTime, UNIX_EPOCH};
use cfg_file::ConfigFile;
use serde::{Deserialize, Deserializer, Serialize, Serializer};
use tokio::time::Instant;
use crate::{
constants::{CLIENT_FILE_LATEST_INFO, CLIENT_FILE_LATEST_INFO_NOSET},
data::{
local::{LocalWorkspace, config::LocalConfig},
member::{Member, MemberId},
sheet::{SheetData, SheetName},
},
};
const ACCOUNT: &str = "{account}";
/// # Latest Info
/// Locally cached latest information,
/// used to cache personal information from upstream for querying and quickly retrieving member information.
#[derive(Default, Serialize, Deserialize, ConfigFile)]
#[cfg_file(path = CLIENT_FILE_LATEST_INFO_NOSET)]
pub struct LatestInfo {
// Sheets
/// My sheets, indicating which sheets I can edit
pub my_sheets: Vec<SheetName>,
/// Other sheets, indicating which sheets I can export files to (these sheets are not readable to me)
pub other_sheets: Vec<SheetInfo>,
/// Reference sheet data, indicating what files I can get from the reference sheet
pub ref_sheet_content: SheetData,
/// Update instant
#[serde(
serialize_with = "serialize_instant",
deserialize_with = "deserialize_instant"
)]
pub update_instant: Option<Instant>,
// Members
/// All member information of the vault, allowing me to contact them more conveniently
pub vault_members: Vec<Member>,
}
impl LatestInfo {
/// Get the path to the latest info file for a given workspace and member ID
pub fn latest_info_path(local_workspace_path: &PathBuf, member_id: &MemberId) -> PathBuf {
local_workspace_path.join(CLIENT_FILE_LATEST_INFO.replace(ACCOUNT, member_id))
}
}
#[derive(Default, Serialize, Deserialize)]
pub struct SheetInfo {
pub sheet_name: SheetName,
pub holder_name: Option<MemberId>,
}
fn serialize_instant<S>(instant: &Option<Instant>, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let system_now = SystemTime::now();
let instant_now = Instant::now();
let duration_since_epoch = instant
.as_ref()
.and_then(|i| i.checked_duration_since(instant_now))
.map(|d| system_now.checked_add(d))
.unwrap_or(Some(system_now))
.and_then(|t| t.duration_since(UNIX_EPOCH).ok())
.unwrap_or_else(|| SystemTime::now().duration_since(UNIX_EPOCH).unwrap());
serializer.serialize_u64(duration_since_epoch.as_millis() as u64)
}
fn deserialize_instant<'de, D>(deserializer: D) -> Result<Option<Instant>, D::Error>
where
D: Deserializer<'de>,
{
let millis = u64::deserialize(deserializer)?;
let duration_since_epoch = std::time::Duration::from_millis(millis);
let system_time = UNIX_EPOCH + duration_since_epoch;
let now_system = SystemTime::now();
let now_instant = Instant::now();
if let Ok(elapsed) = system_time.elapsed() {
Ok(Some(now_instant - elapsed))
} else if let Ok(duration_until) = system_time.duration_since(now_system) {
Ok(Some(now_instant + duration_until))
} else {
Ok(Some(now_instant))
}
}
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