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use std::collections::HashMap;
use std::io::Write;
use strum::{EnumProperty, IntoEnumIterator};
use xml::attribute::OwnedAttribute;
use xml::writer::events::StartElementBuilder;
use xml::writer::XmlEvent as XmlWriterEvent;
use xml::EventWriter;
use crate::components::colours::ColourMap;
use crate::components::mixer::FullChannelList;
#[derive(thiserror::Error, Debug)]
#[allow(clippy::enum_variant_names)]
pub enum ParseError {
#[error("Expected int: {0}")]
ExpectedInt(#[from] std::num::ParseIntError),
#[error("Expected float: {0}")]
ExpectedFloat(#[from] std::num::ParseFloatError),
#[error("Expected enum: {0}")]
ExpectedEnum(#[from] strum::ParseError),
#[error("Invalid colours: {0}")]
InvalidColours(#[from] crate::components::colours::ParseError),
}
#[derive(Debug)]
pub struct Fader {
element_name: String,
colour_map: ColourMap,
channel: FullChannelList,
}
impl Fader {
pub fn new(id: u8) -> Self {
let element_name = format!("FaderMeter{}", id);
let colour_map = format!("FaderMeter{}", id);
Self {
element_name,
colour_map: ColourMap::new(colour_map),
channel: FullChannelList::Mic,
}
}
pub fn parse_fader(&mut self, attributes: &[OwnedAttribute]) -> Result<(), ParseError> {
for attr in attributes {
if attr.name.local_name.ends_with("listIndex") {
let mut found = false;
for channel in FullChannelList::iter() {
if channel.get_str("faderIndex").unwrap() == attr.value {
self.channel = channel;
found = true;
break;
}
}
if !found {
println!("Cannot Find Fader Index: {}", attr.value);
}
continue;
}
if !self.colour_map.read_colours(attr)? {
println!("[FADER] Unparsed Attribute: {}", attr.name);
}
}
Ok(())
}
pub fn write_fader<W: Write>(
&self,
writer: &mut EventWriter<&mut W>,
) -> Result<(), xml::writer::Error> {
let mut element: StartElementBuilder =
XmlWriterEvent::start_element(self.element_name.as_str());
let mut attributes: HashMap<String, String> = HashMap::default();
attributes.insert(
format!("{}listIndex", self.element_name),
self.channel.get_str("faderIndex").unwrap().to_string(),
);
self.colour_map.write_colours(&mut attributes);
for (key, value) in &attributes {
element = element.attr(key.as_str(), value.as_str());
}
writer.write(element)?;
writer.write(XmlWriterEvent::end_element())?;
Ok(())
}
pub fn channel(&self) -> FullChannelList {
self.channel
}
pub fn set_channel(&mut self, channel: FullChannelList) {
self.channel = channel;
}
pub fn colour_map(&self) -> &ColourMap {
&self.colour_map
}
pub fn colour_map_mut(&mut self) -> &mut ColourMap {
&mut self.colour_map
}
}