using UnityEngine;
using System.Collections;
using System.IO;
using System;
using System.Runtime.InteropServices;

public class TestScript : MonoBehaviour
{
    // libscreen
    [DllImport("libscreen.so", EntryPoint="screen_create_context")]
    public static extern int screen_create_context(ref IntPtr context, int flags);

    [DllImport("libscreen.so", EntryPoint="screen_create_window_type")]
    public static extern int screen_create_window_type(ref IntPtr window, IntPtr context, int flags);

    [DllImport("libscreen.so", EntryPoint="screen_create_window_group")]
    public static extern int screen_create_window_group(IntPtr window, string name);

    [DllImport("libscreen.so", EntryPoint="screen_join_window_group")]
    public static extern int screen_join_window_group(IntPtr window, string name);

    [DllImport("libscreen.so", EntryPoint="screen_destroy_window")]
    public static extern int screen_destroy_window(IntPtr window);

    [DllImport("libscreen.so", EntryPoint="screen_destroy_context")]
    public static extern int screen_destroy_context(IntPtr context);

    [DllImport("libscreen.so", EntryPoint="screen_set_window_property_iv")]
    public static extern int screen_set_window_property_iv(IntPtr context, int pname, ref int param);

    // libbbads
    [DllImport("libbbads.so", EntryPoint="bbads_banner_create")]
    public static extern int bbads_banner_create(ref IntPtr banner, IntPtr window, string name, uint id);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_set_size")]
    public static extern int bbads_banner_set_size(IntPtr banner, uint width, uint height);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_set_position")]
    public static extern int bbads_banner_set_position(IntPtr banner, uint x, uint y);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_load")]
    public static extern int bbads_banner_load(IntPtr banner);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_set_window_visible")]
    public static extern int bbads_banner_set_window_visible(IntPtr banner);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_display")]
    public static extern int bbads_banner_display(IntPtr banner, IntPtr context, IntPtr _event);

    [DllImport("libbbads.so", EntryPoint="bbads_banner_is_visible")]
    public static extern int bbads_banner_is_visible(IntPtr banner, ref int visible);

    // libbps
    [DllImport("libbps.so", EntryPoint="bps_get_event")]
    public static extern int bps_get_event(ref IntPtr _event, int timeout);

    [DllImport("libbps.so", EntryPoint="screen_get_domain")]
    public static extern int screen_get_domain();

    [DllImport("libbps.so", EntryPoint="bps_event_get_domain")]
    public static extern int bps_event_get_domain(IntPtr _event);

    [DllImport("libbps.so", EntryPoint="screen_event_get_event")]
    public static extern IntPtr screen_event_get_event(IntPtr _event);

    [DllImport("libbps.so", EntryPoint="screen_get_event_property_iv")]
    public static extern int screen_get_event_property_iv(IntPtr _screen_event, int name, ref int parm);

    [DllImport("libbps.so", EntryPoint="navigator_event_get_groupid")]
    public static extern IntPtr navigator_event_get_groupid(IntPtr _event);

    [DllImport("libbps.so", EntryPoint="bps_event_get_code")]
    public static extern uint bps_event_get_code(IntPtr _event);

    // libc
    [DllImport("libc.so", EntryPoint="getpid")]
    public static extern int getpid();

    const uint BANNER_TEST_ZONE_ID = 117145;
    const uint BANNER_SIZE_X = 468;
    const uint BANNER_SIZE_Y = 60;
    const uint BANNER_POSITION_X = 180;
    const uint BANNER_POSITION_Y = 150;

    const int SCREEN_PROPERTY_TYPE = 47;
    const int SCREEN_EVENT_CREATE = 1;

    const int SCREEN_CHILD_WINDOW = 1;
    const int SCREEN_EMBEDDED_WINDOW = 2;

    const uint NAVIGATOR_WINDOW_ACTIVE = 0x0a;
    const uint NAVIGATOR_WINDOW_STATE = 0x03;
    const uint NAVIGATOR_WINDOW_INACTIVE = 0x0b;

    const int SCREEN_APPLICATION_CONTEXT = 0;

    const int SCREEN_FORMAT_RGBA8888 = 8;
    const int SCREEN_USAGE_NATIVE = (1 << 3);
    const int SCREEN_PROPERTY_FORMAT = 14;
    const int SCREEN_PROPERTY_USAGE = 48;

    IntPtr context = IntPtr.Zero, window = IntPtr.Zero;
    IntPtr banner = IntPtr.Zero;

    void Update()
    {
        try
        {
            IntPtr _event = IntPtr.Zero;
            bps_get_event(ref _event, -1);
            if (_event != IntPtr.Zero)
            {
                if (screen_get_domain() == bps_event_get_domain(_event))
                {
                    int screen_val = 0;

                    uint eventID = bps_event_get_code(_event);
                    Debug.Log("eventID: " + eventID);
                    if (eventID == NAVIGATOR_WINDOW_ACTIVE || eventID == NAVIGATOR_WINDOW_STATE || eventID == NAVIGATOR_WINDOW_INACTIVE)
                    {
                        IntPtr id = navigator_event_get_groupid(_event);
                        Debug.Log("navigator_event_get_groupid: " + Marshal.PtrToStringAnsi(id));
                    }

                    IntPtr screenEvent = screen_event_get_event(_event);
                    Debug.Log("screen_event_get_event: " + screenEvent);
                    if (screenEvent == IntPtr.Zero) return;
                    Debug.Log("screen_get_event_property_iv: " + screen_get_event_property_iv(screenEvent, SCREEN_PROPERTY_TYPE, ref screen_val));

                    Debug.Log("screen_val: " + screen_val);
                    if (screen_val == SCREEN_EVENT_CREATE)
                    {
                        int visible = 0;
                        Debug.Log("bbads_banner_is_visible: " + bbads_banner_is_visible(banner, ref visible));
                        Debug.Log("visible: " + visible);
                        if (visible == 0)
                        {
                            Debug.Log("bbads_banner_set_window_visible: " + bbads_banner_set_window_visible(banner));
                            Debug.Log("bbads_banner_display: " + bbads_banner_display(banner, context, _event));
                        }
                    }
                }
            }
        }
        catch (Exception e)
        {
            Debug.LogError(e.Message);
        }
    }

    void Start()
    {
        Debug.Log("STARTING...");
        try
        {
            // get root window group id
            int id = getpid();
            string windowGroup = id.ToString();
            Debug.Log("getpid: " + id);

            // create a screen to place ads in
            Debug.Log("screen_create_context: " + screen_create_context(ref context, SCREEN_APPLICATION_CONTEXT));
            Debug.Log("screen_create_window_type: " + screen_create_window_type(ref window, context, SCREEN_EMBEDDED_WINDOW));
            //Debug.Log("screen_create_window_group: " + screen_create_window_group(window, windowGroup));
            Debug.Log("screen_join_window_group: " + screen_join_window_group(window, windowGroup));

            int format = SCREEN_FORMAT_RGBA8888;
            Debug.Log("screen_set_window_property_iv: " + screen_set_window_property_iv(window, SCREEN_PROPERTY_FORMAT, ref format));
            int usage = SCREEN_USAGE_NATIVE;
            Debug.Log("screen_set_window_property_iv: " + screen_set_window_property_iv(window, SCREEN_PROPERTY_USAGE, ref usage));

            // create ad banner
            Debug.Log("bbads_banner_create: " + bbads_banner_create(ref banner, window, windowGroup, BANNER_TEST_ZONE_ID));
            Debug.Log("bbads_banner_set_size: " + bbads_banner_set_size(banner, BANNER_SIZE_X, BANNER_SIZE_Y));
            Debug.Log("bbads_banner_set_position: " + bbads_banner_set_position(banner, BANNER_POSITION_X, BANNER_POSITION_Y));
            Debug.Log("bbads_banner_load: " + bbads_banner_load(banner));
        }
        catch (System.Exception e)
        {
            Debug.LogError("ERROR: " + e.Message);
        }
        Debug.Log("ENDING...");
    }

    void OnDestroy()
    {
        Debug.Log("screen_destroy_window: " + screen_destroy_window(window));
        Debug.Log("screen_destroy_context: " + screen_destroy_context(context));
    }
}