#include <stdio.h>
#include <wayland/wayland-server.h>
#include <wayland/wayland-util.h>
#include <stdlib.h>

typedef struct my_state_t {
    int x;
    struct wl_list client_outputs;
} my_state;

typedef struct my_output_t {
    my_state *state;
    struct wl_resource *resource;
} my_output;

static void
wl_output_handle_resource_destroy(struct wl_resource *resource)
{
    my_output *client_output = wl_resource_get_user_data(resource);

    // TODO: Clean up resource

    // remove_to_list(client_output->state->client_outputs, client_output);
}

static void
wl_output_handle_release(struct wl_client *client, struct wl_resource *resource)
{
    wl_resource_destroy(resource);
}

static const struct wl_output_interface
wl_output_implementation = {
    .release = wl_output_handle_release,
};

static void wl_output_handle_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id)
{
    my_state *state = data;
    printf("wl_output_handle_bind: State Variable: %d", state->x);

    my_output *client_output = malloc(sizeof *client_output);

    struct wl_resource *resource = wl_resource_create(
        client, &wl_output_implementation, wl_output_interface.version, id);

    wl_resource_set_implementation(resource, &wl_output_implementation,
        client_output, wl_output_handle_resource_destroy);

    client_output->resource = resource;
    client_output->state = state;

    // Send geometry event, et al
    wl_output_send_geometry(resource, 0, 0, 1920, 1080,
        WL_OUTPUT_SUBPIXEL_UNKNOWN, "Foobar, Inc",
        "Fancy Monitor 9001 4K HD 120 FPS Noscope",
        WL_OUTPUT_TRANSFORM_NORMAL);

    // add_to_list(state->client_outputs, client_output);
}

int main(int argc, char *argv[])
{
    struct wl_display *display = wl_display_create();
    if (!display) {
        fprintf(stderr, "Unable to create Wayland display.\n");
        return 1;
    }

    const char *socket = wl_display_add_socket_auto(display);
    if (!socket) {
        fprintf(stderr, "Unable to add socket to Wayland display.\n");
        return 1;
    }

    fprintf(stderr, "Running Wayland display on %s\n", socket);

    my_state state = { 0 };

    wl_global_create(display, &wl_output_interface, 1, &state, wl_output_handle_bind);

    wl_display_run(display);

    wl_display_destroy(display);
    return 0;
}