Basic stdio Wordle game

src/main.zig

@@ -1,5 +1,86 @@
 const std = @import("std");
+const Wordle = @import("wordle.zig");
+const Dict = @import("dict.zig");
 
-pub fn main() void {
+pub fn main() !void {
-    std.debug.print("Hello, {s}!\n", .{"World"});
+    // acquire stdout writer
+    var stdoutBuf: [1024]u8 = undefined;
+    var stdoutFile = std.fs.File.stdout().writer(&stdoutBuf);
+    if (stdoutFile.err) |err| return err;
+    const stdout = &stdoutFile.interface;
+
+    // acquire stdin reader
+    var stdinBuf: [1024]u8 = undefined;
+    var stdinFile = std.fs.File.stdin().reader(&stdinBuf);
+    if (stdinFile.err) |err| return err;
+    const stdin = &stdinFile.interface;
+
+    // select a random dictionary word as the solution
+    const dict = Dict.getDictionary();
+    const solutionIdx = std.crypto.random.intRangeAtMost(usize, 0, dict.len);
+
+    // create a game with the chosen solution
+    var game: Wordle.Game = .{ .solution = dict[solutionIdx] };
+
+    // play game until over
+    while (!game.isOver()) {
+        // display guess prompt
+        try stdout.writeAll("Guess: ");
+        try stdout.flush();
+
+        // read next guess
+        const input = try stdin.takeDelimiter('\n') orelse continue;
+
+        // assert that input is correct size
+        if (input.len != Wordle.WordLen) {
+            try stdout.writeAll("Guess is wrong length.\n");
+            try stdout.flush();
+            continue;
+        }
+
+        // convert to word
+        var guess: Wordle.Word = undefined;
+        @memcpy(&guess, input);
+
+        // test if guess is valid
+        if (!Dict.isInDictionary(guess)) {
+            try stdout.writeAll("Guess is not in dictionary.\n");
+            try stdout.flush();
+            continue;
+        }
+
+        // display clues
+        const clues = Wordle.checkGuess(guess, game.solution);
+        try writeClues(stdout, clues);
+
+        // add guess
+        try game.addGuess(guess);
+    }
+
+    // display message win/lose
+    if (game.isWon()) {
+        try stdout.writeAll("You win!\n");
+    } else {
+        try stdout.writeAll("You lose :(\n");
+    }
+
+    // display spoilered guesses
+    for (game.guesses()) |guess| {
+        try writeClues(stdout, Wordle.checkGuess(guess, game.solution));
+    }
+
+    // flush stdout
+    try stdout.flush();
+}
+
+pub fn writeClues(out: *std.io.Writer, clues: Wordle.Clues) !void {
+    for (clues) |clue| {
+        try out.writeAll(switch (clue) {
+            Wordle.Clue.Gray => "⬛",
+            Wordle.Clue.Yellow => "🟨",
+            Wordle.Clue.Green => "🟩",
+        });
+    }
+
+    try out.writeAll("\n");
 }