57 lines
2.3 KiB
Rust
57 lines
2.3 KiB
Rust
//! This file deals with updating the active player.
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//! It also updates the prefix, which kind of breaks seperation of concerns, but this saves me a lot of headache so I'm not changing it.
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use std::collections::BTreeMap;
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use log::trace;
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use mpris::{PlayerFinder, Player};
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use crate::structs::{data::Data, config::Config};
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/// This function updates the current prefix.
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/// If no entry is found in config containing the active player, a default value is used instead ('>').
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///
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/// Input:
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/// cfg: Config struct for the program, containing the hashmap of prefixes.
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/// data: mutable char containing the active prefix.
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/// name: name of active player, to fetch the appropriate prefix from cfg.
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fn update_prefix(cfg: &Config, data: &mut char, name: &str) {
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if let Some(char) = cfg.player_prefixes.get(name) {
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*data = char.clone();
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trace!("updated prefix to {}", data);
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} else {
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*data = cfg.player_prefixes.get("default").unwrap_or(&'>').clone();
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trace!("set prefix to default ({})", data);
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}
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}
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/// This function updates which player is selected as 'active'.
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/// It only considers players present in the config.player_priorities field to be valid candidates, then selects the active one with the highest rating.
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/// If none of the acceptable players are available, current_player is set to None instead.
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///
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/// Input:
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/// pf: PlayerFinder instance of the program.
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/// cfg: Config struct of the program, containing the list of acceptable players.
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/// data: mutable Data struct of the program, containing a marker for the currently active player.
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pub fn update_players(pf: &PlayerFinder, cfg: &Config, mut data: &mut Data) {
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// get all acceptable players
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let players = pf.find_all().unwrap_or(Vec::new());
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if players.is_empty() {
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data.current_player = None;
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} else {
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let mut active: BTreeMap<i32, Player> = BTreeMap::new();
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for player in players {
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if let Ok(mpris::PlaybackStatus::Playing) = player.get_playback_status() {
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let idx = cfg.find_player_priorities_idx(player.identity());
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active.insert(idx, player);
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}
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}
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// select the player with the highest priority.
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if let Some((_, player)) = active.pop_first() {
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update_prefix(cfg, &mut data.prefix, player.identity());
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data.current_player = Some(player);
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} else {
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data.current_player = None;
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}
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}
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} |