From 647137cdb0a02f242d5fa0e5e8df208be9411bf0 Mon Sep 17 00:00:00 2001
From: Daniel Schadt <kingdread@gmx.de>
Date: Mon, 23 Apr 2018 16:09:53 +0200
Subject: add some utility methods to Agent

---
 src/lib.rs | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 8 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index e3a9188..0876ea3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,5 @@
+//! `evtclib` is a crate aiming to provide utility functions to parse and work
+//! with `.evtc` reports generated by arcdps.
 #![feature(try_trait)]
 #[macro_use]
 extern crate quick_error;
@@ -11,6 +13,21 @@ pub mod raw;
 mod event;
 pub use event::{Event, EventKind};
 
+/// A macro that returns `true` when the given expression matches the pattern.
+///
+/// ```rust
+/// assert!(matches!(Some(4), Some(_)));
+/// assert!(!matches!(Some(2), None));
+/// ```
+macro_rules! matches {
+    ($expression:expr, $($pattern:pat)|*) => (
+        match $expression {
+            $($pattern)|+ => true,
+            _ => false,
+        }
+    )
+}
+
 quick_error! {
     #[derive(Debug)]
     pub enum EvtcError {
@@ -65,25 +82,53 @@ pub struct Agent {
 #[derive(Debug, Clone)]
 pub struct Log {
     agents: Vec<Agent>,
+    events: Vec<Event>,
+}
+
+impl Log {
+    /// Return all agents present in this log.
+    pub fn agents(&self) -> &[Agent] {
+        &self.agents
+    }
+
+    /// Return an agent based on its address.
+    pub fn agent_by_addr(&self, addr: u64) -> Option<&Agent> {
+        self.agents.iter().find(|a| a.addr == addr)
+    }
+
+    /// Return an agent based on the instance ID.
+    pub fn agent_by_instance_id(&self, instance_id: u16) -> Option<&Agent> {
+        self.agents.iter().find(|a| a.instance_id == instance_id)
+    }
+
+    /// Return an iterator over all agents that represent player characters.
+    pub fn players(&self) -> impl Iterator<Item=&Agent> {
+        self.agents.iter().filter(|a| matches!(a.kind, AgentKind::Player { .. }))
+    }
+
+    /// Return an iterator over all agents that are NPCs.
+    pub fn npcs(&self) -> impl Iterator<Item=&Agent> {
+        self.agents.iter().filter(|a| matches!(a.kind, AgentKind::Character(_)))
+    }
+
+    /// Return all events present in this log.
+    pub fn events(&self) -> &[Event] {
+        &self.events
+    }
 }
 
 pub fn process(data: &raw::Evtc) -> Result<Log, EvtcError> {
     // Prepare "augmented" agents
-    let mut agents = setup_agents(data)?;
-
+    let mut agents = setup_agents(data)?; 
     // Do the first aware/last aware field
     set_agent_awares(data, &mut agents)?;
 
     // Set the master addr field
     set_agent_masters(data, &mut agents)?;
 
-    for agent in &agents {
-        if let AgentKind::Player { .. } = agent.kind {
-            println!("Agent: {:#?}", agent);
-        }
-    }
+    let events = data.events.iter().filter_map(Event::from_raw).collect();
 
-    panic!();
+    Ok(Log { agents, events })
 }
 
 fn setup_agents(data: &raw::Evtc) -> Result<Vec<Agent>, EvtcError> {
-- 
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