77 lines
2.0 KiB
Rust
77 lines
2.0 KiB
Rust
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use anyhow::{bail, Error};
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use serde::{Serialize, Deserialize};
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use proxmox::tools::Uuid;
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/// MediaSet - Ordered group of media
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#[derive(Debug, Serialize, Deserialize)]
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pub struct MediaSet {
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/// Unique media set ID
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uuid: Uuid,
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/// List of member media IDs
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media_list: Vec<Option<Uuid>>,
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}
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impl MediaSet {
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pub const MEDIA_SET_MAX_SEQ_NR: u64 = 100;
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pub fn new() -> Self {
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let uuid = Uuid::generate();
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Self {
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uuid,
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media_list: Vec::new(),
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}
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}
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pub fn with_data(uuid: Uuid, media_list: Vec<Option<Uuid>>) -> Self {
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Self { uuid, media_list }
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}
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pub fn uuid(&self) -> &Uuid {
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&self.uuid
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}
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pub fn media_list(&self) -> &[Option<Uuid>] {
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&self.media_list
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}
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pub fn add_media(&mut self, uuid: Uuid) {
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self.media_list.push(Some(uuid));
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}
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pub fn insert_media(&mut self, uuid: Uuid, seq_nr: u64) -> Result<(), Error> {
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if seq_nr > Self::MEDIA_SET_MAX_SEQ_NR {
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bail!("media set sequence number to large in media set {} ({} > {})",
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self.uuid.to_string(), seq_nr, Self::MEDIA_SET_MAX_SEQ_NR);
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}
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let seq_nr = seq_nr as usize;
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if self.media_list.len() > seq_nr {
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if self.media_list[seq_nr].is_some() {
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bail!("found duplicate squence number in media set '{}/{}'",
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self.uuid.to_string(), seq_nr);
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}
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} else {
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self.media_list.resize(seq_nr + 1, None);
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}
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self.media_list[seq_nr] = Some(uuid);
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Ok(())
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}
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pub fn last_media_uuid(&self) -> Option<&Uuid> {
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match self.media_list.last() {
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None => None,
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Some(None) => None,
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Some(Some(ref last_uuid)) => Some(last_uuid),
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}
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}
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pub fn is_last_media(&self, uuid: &Uuid) -> bool {
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match self.media_list.last() {
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None => false,
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Some(None) => false,
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Some(Some(last_uuid)) => uuid == last_uuid,
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}
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}
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}
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