From e23c1d139b9eed12b4f160d37041aabd5d81cc0e Mon Sep 17 00:00:00 2001
From: Joel Therrien <joel@joeltherrien.ca>
Date: Thu, 7 Sep 2023 19:44:07 -0700
Subject: [PATCH] Add capability to convert AI plays into PlayedTiles vector

---
 src/game.rs                  | 16 +++--------
 src/player_interaction/ai.rs | 56 +++++++++++++++++++++++++++++++++---
 2 files changed, 56 insertions(+), 16 deletions(-)

diff --git a/src/game.rs b/src/game.rs
index 45b1251..751313e 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -33,11 +33,11 @@ pub struct PlayerState {
     pub tray: Tray
 }
 
-#[derive(Deserialize, Tsify, Copy, Clone)]
+#[derive(Deserialize, Tsify, Copy, Clone, Debug)]
 #[tsify(from_wasm_abi)]
 pub struct PlayedTile {
-    index: usize,
-    character: Option<char>,
+    pub index: usize,
+    pub character: char,
 }
 
 #[derive(Debug, Serialize, Deserialize, Tsify)]
@@ -164,15 +164,7 @@ impl Game {
 
                 let coord = Coordinates::new_from_index(played_tile.index);
                 if letter.is_blank {
-                    match played_tile.character {
-                        None => {
-                            panic!("You can't play a blank character without providing a letter value")
-                        }
-                        Some(x) => {
-                            // TODO - I should check that the character is a valid letter
-                            letter.text = x;
-                        }
-                    }
+                    letter.text = played_tile.character;
                 }
                 played_letters.push((letter, coord));
 
diff --git a/src/player_interaction/ai.rs b/src/player_interaction/ai.rs
index ab34fd9..fb9aec1 100644
--- a/src/player_interaction/ai.rs
+++ b/src/player_interaction/ai.rs
@@ -3,6 +3,7 @@ use rand::Rng;
 use crate::board::{Board, CellType, Coordinates, Direction, Letter};
 use crate::constants::GRID_LENGTH;
 use crate::dictionary::DictionaryImpl;
+use crate::game::PlayedTile;
 use crate::player_interaction::Tray;
 
 const ALPHABET: [char; 26] = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];
@@ -51,6 +52,47 @@ pub struct CompleteMove {
     score: u32,
 }
 
+impl CompleteMove {
+
+    pub fn convert_to_play(&self, tray: &Tray) -> Vec<Option<PlayedTile>> {
+        let mut played_tiles = Vec::with_capacity(tray.letters.len());
+        let mut moves = self.moves.iter()
+            .map(|m| Some(m.clone()))
+            .collect::<Vec<Option<MoveComponent>>>();
+
+        tray.letters.iter().for_each(|letter| {
+            match letter {
+                None => {
+                    played_tiles.push(None);
+                }
+                Some(letter) => {
+                    let mut found_match = false;
+                    // see if we can find a match in moves
+                    for m in moves.iter_mut() {
+                        match m {
+                            Some(x) => {
+                                if letter.partial_match(&x.letter) {
+                                    played_tiles.push(Some(PlayedTile {
+                                        index: x.coordinates.map_to_index(),
+                                        character: x.letter.text,
+                                    }));
+                                    *m = None;
+                                    found_match = true;
+                                    break;
+                                }
+                            },
+                            None => {}
+                        }
+                    }
+                    assert!(found_match);
+                }
+            }
+        });
+
+        played_tiles
+    }
+}
+
 #[derive(Clone)]
 struct MoveScoring {
     main_scoring: u32,
@@ -827,7 +869,7 @@ mod tests {
             ephemeral: false,
             is_blank: false,
         });
-        tray.letters[2] = Some(Letter{
+        tray.letters[6] = Some(Letter{
             text: 'A',
             points: 1,
             ephemeral: false,
@@ -848,19 +890,25 @@ mod tests {
         assert!(end_of_boat.is_some());
         assert_eq!(end_of_boat.as_ref().unwrap().len(), 1);
 
-        //let rng = SmallRng::seed_from_u64(123);
-
         let moves = ai.find_all_moves(&tray, &board);
 
         println!("Moves are {:?}", moves);
 
 
-        // 2 possible moves -
+        // 3 possible moves -
         //      1. put 'S' at the end of 'BOAT' and form words 'SLAM' and 'BOATS'
         //      2. Put 'S' at end of 'BOAT'
         //      3. Put 'SL' to left of 'A' in 'BOAT' and then 'M' to right of it
         assert_eq!(moves.len(), 3);
 
+        let mut rng = SmallRng::seed_from_u64(123);
+        let best_move = ai.find_best_move(&tray, &board, &mut rng).unwrap();
+
+        assert_eq!(best_move.score, 23);
+
+        let play = best_move.convert_to_play(&tray);
+        println!("Play is {:?}", play);
+
     }
 
     #[test]