const sokol = @import("sokol");
const slog = sokol.log;
const sg = sokol.gfx;
const sapp = sokol.app;
const sglue = sokol.glue;
const simgui = sokol.imgui;

const imgui_pass_action = blk: {
    var ret: sg.PassAction = .{};

    ret.colors[0] = .{
        .load_action = .CLEAR,
        .clear_value = .{ .r = 0.0, .g = 0.0, .b = 0.0, .a = 1.0 },
    };

    break :blk ret;
};

fn init() callconv(.c) void {
    sg.setup(.{
        .environment = sglue.environment(),
        .logger = .{ .func = slog.func },
    });

    simgui.setup(.{
        .logger = .{ .func = slog.func },
    });
}

fn deinit() callconv(.c) void {
    simgui.shutdown();
    sg.shutdown();
}

fn frame() callconv(.c) void {
    simgui.newFrame(.{
        .width = sapp.width(),
        .height = sapp.height(),
        .delta_time = sapp.frameDuration(),
        .dpi_scale = sapp.dpiScale(),
    });

    // --- IMGUI PASS ---

    sg.beginPass(.{
        .action = imgui_pass_action,
        .swapchain = sglue.swapchain(),
    });
    simgui.render();
    sg.endPass();

    // ---

    sg.commit();
}

fn event(ev: [*c]const sapp.Event) callconv(.c) void {
    _ = simgui.handleEvent(ev.*);
}

pub fn main() void {
    sapp.run(.{
        .init_cb = &init,
        .cleanup_cb = &deinit,
        .frame_cb = &frame,
        .event_cb = &event,
        .window_title = "Voxel Game",
        .width = 1280,
        .height = 720,
        .icon = .{ .sokol_default = true },
        .logger = .{ .func = slog.func },
    });
}