const std = @import("std");
const Io = std.Io;

const grome = @import("grome");

pub fn main(init: std.process.Init) !void {
    // This is appropriate for anything that lives as long as the process.
    const arena: std.mem.Allocator = init.arena.allocator();

    // Initialize the stdout writer
    var stdout_buffer: [1024]u8 = undefined;
    var stdout_file_writer: Io.File.Writer = .init(.stdout(), init.io, &stdout_buffer);
    const stdout_writer = &stdout_file_writer.interface;

    // alright lets play with the matrix
    const width = 50;
    const height = 50;
    var matrix = try grome.Matrix(u8, width, height).init(arena, ' ');
    var iter = matrix.row_iterator();

    const density = (width * height) / 100;
    for (0..density) |_| {
        var buf: [3]u8 = undefined;
        init.io.random(&buf);
        matrix.set(@intCast(buf[0] % width), @intCast(buf[1] % height), @intCast((buf[2] % 50) + 93));
    }

    _ = try stdout_writer.write(" ┌─");
    for (0..width) |_| {
        _ = try stdout_writer.write("─");
    }
    _ = try stdout_writer.write("─┐ \n");

    while (iter.next()) |row| {
        _ = try stdout_writer.print(" │ {s} │ \n", .{row});
    }

    _ = try stdout_writer.write(" └─");
    for (0..width) |_| {
        _ = try stdout_writer.write("─");
    }
    _ = try stdout_writer.write("─┘ \n");

    try stdout_writer.flush();
}