From 8bcb604e86d61883e0cf8332c97df094822e7a75 Mon Sep 17 00:00:00 2001
From: Francisco Salgueiro <fgcdbs@gmail.com>
Date: Tue, 7 Nov 2023 00:45:52 +0000
Subject: [PATCH] analyze first position as well

---
 src-tauri/src/chess.rs   | 24 ++++++++++++------------
 src/utils/treeReducer.ts |  4 ++--
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/src-tauri/src/chess.rs b/src-tauri/src/chess.rs
index 583ec2b6..eb661287 100644
--- a/src-tauri/src/chess.rs
+++ b/src-tauri/src/chess.rs
@@ -439,30 +439,30 @@ pub async fn analyze_game(
     let mut analysis: Vec<MoveAnalysis> = Vec::new();
 
     let (mut process, mut reader) = EngineProcess::new(path)?;
+
     let fen = Fen::from_ascii(options.fen.as_bytes())?;
 
-    let mut chess: Chess = fen.into_position(CastlingMode::Standard)?;
+    let mut chess: Chess = fen.clone().into_position(CastlingMode::Standard)?;
+    let mut fens: Vec<Fen> = vec![fen];
 
-    let len_moves = moves.len();
+    moves.iter().for_each(|m| {
+        let san = San::from_ascii(m.as_bytes()).unwrap();
+        let m = san.to_move(&chess).unwrap();
+        chess.play_unchecked(&m);
+        fens.push(Fen::from_position(chess.clone(), EnPassantMode::Legal));
+    });
 
     let mut novelty_found = false;
 
-    for (i, m) in moves.iter().enumerate() {
+    for (i, fen) in fens.iter().enumerate() {
         app.emit_all(
             "report_progress",
             ProgressPayload {
-                progress: (i as f64 / len_moves as f64) * 100.0,
+                progress: (i as f64 / fens.len() as f64) * 100.0,
                 id: 0,
                 finished: false,
             },
         )?;
-        let san = San::from_ascii(m.as_bytes())?;
-        let m = san.to_move(&chess)?;
-        chess.play_unchecked(&m);
-        if chess.is_game_over() {
-            break;
-        }
-        let fen = Fen::from_position(chess.clone(), EnPassantMode::Legal);
         let query = PositionQuery::exact_from_fen(&fen.to_string())?;
 
         process
@@ -480,7 +480,7 @@ pub async fn analyze_game(
         while let Ok(Some(line)) = reader.next_line().await {
             match parse_one(&line) {
                 UciMessage::Info(attrs) => {
-                    if let Ok(best_moves) = parse_uci_attrs(attrs, &fen) {
+                    if let Ok(best_moves) = parse_uci_attrs(attrs, fen) {
                         current_analysis.best = best_moves;
                     }
                 }
diff --git a/src/utils/treeReducer.ts b/src/utils/treeReducer.ts
index 5d368c39..7960d649 100644
--- a/src/utils/treeReducer.ts
+++ b/src/utils/treeReducer.ts
@@ -381,7 +381,7 @@ export const getNodeAtPath = (node: TreeNode, path: number[]): TreeNode => {
 };
 
 function addAnalysis(state: TreeState, analysis: { best: BestMoves, novelty: boolean }[]) {
-    let cur = state.root.children[0];
+    let cur = state.root;
     let i = 0;
     while (cur !== undefined && i < analysis.length) {
         cur.score = analysis[i].best.score;
@@ -394,7 +394,7 @@ function addAnalysis(state: TreeState, analysis: { best: BestMoves, novelty: boo
             prevScore = analysis[i - 1].best.score;
         }
         const curScore = analysis[i].best.score;
-        const color = i % 2 === 0 ? "w" : "b";
+        const color = i % 2 === 1 ? "w" : "b";
         cur.annotation = getAnnotation(prevScore, curScore, color);
         cur = cur.children[0];
         i++;