start implementing ovserver
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@ -1,4 +1,41 @@
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#[derive(Debug)]
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pub struct Gateway {
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url: String,
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pub struct Gateway {}
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pub trait Observer {
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fn update(&self, data: &str);
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}
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pub struct GatewayEvent<'a> {
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observers: Vec<&'a dyn Observer>,
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test_content: String,
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}
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impl<'a> GatewayEvent<'a> {
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pub fn new(test_content: String) -> Self {
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Self {
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observers: Vec::new(),
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test_content,
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}
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}
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pub fn subscribe(&mut self, observable: &'a dyn Observer) {
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self.observers.push(observable)
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}
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pub fn unsubscribe(&mut self, observable: &'a dyn Observer) {
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if let Some(index) = self.observers.iter().position(|&o| o == observable) {
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self.observers.remove(index);
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}
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}
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pub fn update_data(&mut self, test_content: String) {
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self.test_content = test_content;
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self.notify();
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}
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pub fn notify(&self) {
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for observer in &self.observers {
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observer.update(&self.test_content);
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}
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}
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}
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