using UnityEngine;
using System.Collections;
using System.ServiceModel;
using UnityStoreLibrary;

public class UpdateScene : MonoBehaviour {

    public GameObject paymentTrigger;

    void Start(){
        InvokeRepeating("UpdateMyScene", 1f, Strings.updateInterval);
        paymentTrigger.collider.enabled = true;
    }

    private void UpdateMyScene(){
        UnityStoreClient client = new UnityStoreClient(new BasicHttpBinding(), new EndpointAddress(Strings.webserviceUrl));
        Item[] items = client.GetUnity3dItems(null);
        for(int i=0;i<items.Length;i++){
            GameObject curent = GameObject.Find(items[i].name);
            if (curent != null){
                ItemFieldValue[] values = items[i].item_field_values;
                for(int j=0;j<values.Length;j++){
                    GameObject o = GameObject.Find(curent.name + "/" + values[j].field_details.name);
                    if (o != null){
                        if (values[j].field_details.type_id.Equals(Strings.colorType))
                            UpdateColor (values[j], o);
                        if (values[j].field_details.type_id.Equals(Strings.textureType))
                            if (!o.renderer.material.mainTexture.name.Equals(values[j].value.Substring(0,values[j].value.Length-4)))
                                StartCoroutine(UpdateTexture(values[j], o));
                    }
                }
            }
        }
    }

    void SaveTextureToFile(Texture2D texture, string fileName)
     {
        byte[] bytes=texture.EncodeToPNG();
        System.IO.FileStream file = new System.IO.FileStream(Strings.defaultUserDirectory+fileName, System.IO.FileMode.CreateNew);
        System.IO.BinaryWriter binary= new System.IO.BinaryWriter(file);
        binary.Write(bytes);
        file.Close();
     }

    void UpdateColor (ItemFieldValue ifv, GameObject o) {
        string[] c = ifv.value.Split(',');
        Color color;
        float r = float.Parse(c[1])/255;
        float g = float.Parse(c[2])/255;
        float b = float.Parse(c[3])/255;
        float a;
        if (o.renderer.material.shader.name.Equals("Transparent/Diffuse"))
            a = float.Parse(c[0])/255/2;
        else
            a = float.Parse(c[0])/255;
        color = new Color(r,g,b,a);
        if (o.renderer.material.color != color)
            o.renderer.material.color = color;
    }

    IEnumerator UpdateTexture(ItemFieldValue ifv, GameObject o) {
        string url = "";
        if (!System.IO.File.Exists(Strings.defaultUserDirectory + ifv.value))
            url = Strings.texturesHost + ifv.value;
        else
            url = "file://" + Strings.defaultUserDirectory + ifv.value;
        WWW www = new WWW (url);
        yield return www;
        if (!System.IO.File.Exists(Strings.defaultUserDirectory + ifv.value))
            SaveTextureToFile(www.texture, ifv.value);
        o.renderer.material.mainTexture = www.texture;
        yield return null;
    }
}

/* The yield return 0; statement tells Unity that it has finished executing
 * for this frame and allows it to execute other code. The next frame it will
 * pick up where it left off (in this instance in the middle of the loop).
 */