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Commit | Line | Data |
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c7926d8e DM |
1 | use anyhow::{bail, Error}; |
2 | use serde::{Serialize, Deserialize}; | |
3 | ||
6ef1b649 | 4 | use proxmox_uuid::Uuid; |
c7926d8e DM |
5 | |
6 | /// MediaSet - Ordered group of media | |
7 | #[derive(Debug, Serialize, Deserialize)] | |
8 | pub struct MediaSet { | |
9 | /// Unique media set ID | |
10 | uuid: Uuid, | |
11 | /// List of member media IDs | |
12 | media_list: Vec<Option<Uuid>>, | |
13 | } | |
14 | ||
15 | impl MediaSet { | |
16 | ||
17 | pub const MEDIA_SET_MAX_SEQ_NR: u64 = 100; | |
18 | ||
19 | pub fn new() -> Self { | |
20 | let uuid = Uuid::generate(); | |
21 | Self { | |
22 | uuid, | |
23 | media_list: Vec::new(), | |
24 | } | |
25 | } | |
26 | ||
27 | pub fn with_data(uuid: Uuid, media_list: Vec<Option<Uuid>>) -> Self { | |
28 | Self { uuid, media_list } | |
29 | } | |
30 | ||
31 | pub fn uuid(&self) -> &Uuid { | |
32 | &self.uuid | |
33 | } | |
34 | ||
35 | pub fn media_list(&self) -> &[Option<Uuid>] { | |
36 | &self.media_list | |
37 | } | |
38 | ||
39 | pub fn add_media(&mut self, uuid: Uuid) { | |
40 | self.media_list.push(Some(uuid)); | |
41 | } | |
42 | ||
43 | pub fn insert_media(&mut self, uuid: Uuid, seq_nr: u64) -> Result<(), Error> { | |
44 | if seq_nr > Self::MEDIA_SET_MAX_SEQ_NR { | |
45 | bail!("media set sequence number to large in media set {} ({} > {})", | |
46 | self.uuid.to_string(), seq_nr, Self::MEDIA_SET_MAX_SEQ_NR); | |
47 | } | |
48 | let seq_nr = seq_nr as usize; | |
49 | if self.media_list.len() > seq_nr { | |
50 | if self.media_list[seq_nr].is_some() { | |
d1d74c43 | 51 | bail!("found duplicate sequence number in media set '{}/{}'", |
c7926d8e DM |
52 | self.uuid.to_string(), seq_nr); |
53 | } | |
54 | } else { | |
55 | self.media_list.resize(seq_nr + 1, None); | |
56 | } | |
57 | self.media_list[seq_nr] = Some(uuid); | |
58 | Ok(()) | |
59 | } | |
60 | ||
61 | pub fn last_media_uuid(&self) -> Option<&Uuid> { | |
62 | match self.media_list.last() { | |
63 | None => None, | |
64 | Some(None) => None, | |
65 | Some(Some(ref last_uuid)) => Some(last_uuid), | |
66 | } | |
67 | } | |
68 | ||
69 | pub fn is_last_media(&self, uuid: &Uuid) -> bool { | |
70 | match self.media_list.last() { | |
71 | None => false, | |
72 | Some(None) => false, | |
73 | Some(Some(last_uuid)) => uuid == last_uuid, | |
74 | } | |
75 | } | |
76 | } |