99 lines
2.7 KiB
Rust
99 lines
2.7 KiB
Rust
use shared::{AppEvent, Torrent, TorrentUpdate};
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#[derive(Debug)]
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pub enum DiffResult {
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NoChange,
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FullUpdate,
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Partial(Vec<AppEvent>),
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}
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pub fn diff_torrents(old: &[Torrent], new: &[Torrent]) -> DiffResult {
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// 1. Structural Check (Length or Order changed)
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if old.len() != new.len() {
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return DiffResult::FullUpdate;
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}
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for (i, t) in new.iter().enumerate() {
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if old[i].hash != t.hash {
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return DiffResult::FullUpdate;
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}
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}
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// 2. Field Updates
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let mut events = Vec::new();
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for (i, new_t) in new.iter().enumerate() {
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let old_t = &old[i];
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// Initialize with all None
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let mut update = TorrentUpdate {
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hash: new_t.hash.clone(),
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name: None,
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size: None,
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down_rate: None,
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up_rate: None,
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percent_complete: None,
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completed: None,
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eta: None,
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status: None,
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error_message: None,
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label: None,
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};
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let mut has_changes = false;
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// Compare fields
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if old_t.name != new_t.name {
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update.name = Some(new_t.name.clone());
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has_changes = true;
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}
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if old_t.size != new_t.size {
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update.size = Some(new_t.size);
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has_changes = true;
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}
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if old_t.down_rate != new_t.down_rate {
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update.down_rate = Some(new_t.down_rate);
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has_changes = true;
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}
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if old_t.up_rate != new_t.up_rate {
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update.up_rate = Some(new_t.up_rate);
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has_changes = true;
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}
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if (old_t.percent_complete - new_t.percent_complete).abs() > 0.01 {
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update.percent_complete = Some(new_t.percent_complete);
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has_changes = true;
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}
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if old_t.completed != new_t.completed {
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update.completed = Some(new_t.completed);
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has_changes = true;
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}
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if old_t.eta != new_t.eta {
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update.eta = Some(new_t.eta);
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has_changes = true;
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}
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if old_t.status != new_t.status {
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update.status = Some(new_t.status.clone());
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has_changes = true;
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}
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if old_t.error_message != new_t.error_message {
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update.error_message = Some(new_t.error_message.clone());
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has_changes = true;
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}
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if old_t.label != new_t.label {
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update.label = new_t.label.clone();
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has_changes = true;
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}
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if has_changes {
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events.push(AppEvent::Update(update));
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}
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}
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if events.is_empty() {
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DiffResult::NoChange
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} else {
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tracing::debug!("Generated {} partial updates", events.len());
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DiffResult::Partial(events)
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}
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}
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