ona/src/main.zig

const ext = @cImport({
    @cInclude("SDL2/SDL.h");
});

const io = @import("./io.zig");
const stack = @import("./stack.zig");
const std = @import("std");
const sys = @import("./sys.zig");

///
/// Entry point.
///
pub fn main() anyerror!void {
    return nosuspend await async sys.runGraphics(anyerror, run);
}

test {
    _ = io;
    _ = stack;
    _ = std;
    _ = sys;
}

fn run(app: *sys.App, graphics: *sys.GraphicsContext) anyerror!void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};

    defer _ = gpa.deinit();

    {
        const file_access = try (try app.data().joinedPath(&.{"ona.lua"})).open(app, .readonly);

        defer file_access.close(app);

        const file_size = try file_access.queryLength(app);
        const allocator = gpa.allocator();
        const buffer = try allocator.alloc(u8, file_size);

        defer allocator.free(buffer);

        if ((try file_access.read(app, buffer)) != file_size)
            return error.ScriptLoadFailure;

        sys.Log.debug.write(app, buffer);
    }

    while (graphics.poll()) |_| {
        graphics.present();
    }
}