From a713ed5853f389a979f4bcd0b0c6ce36d7bb3937 Mon Sep 17 00:00:00 2001
From: Jonni Liljamo <jonni@liljamo.com>
Date: Fri, 5 May 2023 16:37:19 +0300
Subject: [PATCH] WIP(client): redo player borrows, init EndTurn

---
 client/src/api/game/mod.rs       |  2 ++
 client/src/game_status/parser.rs | 44 +++++++++++++++++++++++++++-----
 2 files changed, 39 insertions(+), 7 deletions(-)

diff --git a/client/src/api/game/mod.rs b/client/src/api/game/mod.rs
index 2752a93..e24137b 100644
--- a/client/src/api/game/mod.rs
+++ b/client/src/api/game/mod.rs
@@ -40,6 +40,8 @@ pub enum Command {
     Draw { amount: usize },
     /// discard card from hand in slot N
     Discard { index: usize },
+    /// end the targets turn
+    EndTurn { },
     /// change player state to another
     ChangePlayerState { state: PlayerState },
 }
diff --git a/client/src/game_status/parser.rs b/client/src/game_status/parser.rs
index c79d457..8c2011d 100644
--- a/client/src/game_status/parser.rs
+++ b/client/src/game_status/parser.rs
@@ -7,12 +7,32 @@
  */
 
 use std::collections::HashMap;
+
 use fastrand::Rng;
 
 use crate::{api::game::{Action, Command, Game}, game_status::SupplyPile};
 
 use super::{GameStatus, PlayerState, PlayerStatus, Card};
 
+/// funny unsafe wrapper
+fn get_invoker_target<'a, K, V>(
+    players: &'a mut HashMap<K, V>,
+    invoker: &K,
+    target: &K
+) -> (&'a mut V, Option<&'a mut V>)
+where
+    K: Eq + std::hash::Hash,
+{
+    if invoker == target {
+        return (players.get_mut(invoker).unwrap(), None);
+    }
+    unsafe {
+        let invoker_ref = players.get_mut(invoker).unwrap() as *mut _;
+        let target_ref = players.get_mut(target).unwrap() as *mut _;
+        (&mut *invoker_ref, Some(&mut *target_ref))
+    }
+}
+
 pub fn parse(game: &Game) -> Result<GameStatus, ()> {
     let mut game_status = GameStatus {
         actions: game.actions.as_ref().unwrap().to_vec(),
@@ -41,13 +61,9 @@ pub fn parse(game: &Game) -> Result<GameStatus, ()> {
     // TODO: a system for reparsing if needed, e.g. after something
     // modifies the actions Vector.
     for action in &game_status.actions {
-        // the one who invoked the action
-        let invoker = game_status.players.get_mut(&action.invoker)
-            .unwrap_or_else(|| unreachable!());
-
-        // the one who the action affects, may also be the invoker, e.g. draw
-        let target = game_status.players.get_mut(&action.target)
-            .unwrap_or_else(|| unreachable!());
+        // invoker: the one who invoked the action
+        // target: the one who the action affects, may also be the invoker, e.g. draw
+        let (invoker, target) = get_invoker_target(&mut game_status.players, &action.invoker, &action.target);
 
         match &action.command {
             Command::InitSupplyPile { card, amount } => {
@@ -85,6 +101,20 @@ pub fn parse(game: &Game) -> Result<GameStatus, ()> {
                 assert!(*index <= target.hand.len());
                 target.discard.push(target.hand.remove(*index));
             }
+            Command::EndTurn {  } => {
+                // NOTE: target will be the next player
+
+                // set player to idle
+                invoker.state = PlayerState::Idle;
+
+                // set the target to action phase
+                target.state = PlayerState::ActionPhase;
+
+                // clear currency
+                invoker.currency = 0;
+
+                // other?
+            }
             Command::ChangePlayerState { state } => {
                 target.state = *state;
             }
-- 
2.44.1