using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public enum PopupType {
    Alert,
    Prompt,
    List
}

public class Popup : MonoBehaviour {
    public static Action<object, GameObject> OnPopupClosed;
    public void Close() {
        OnPopupClosed(null, gameObject);
        DestroyImmediate(gameObject);
    }
    public void CloseWithBool(bool value) {
        OnPopupClosed(value, gameObject);
        DestroyImmediate(gameObject);
    }
    public void CloseWithString(string value) {
        OnPopupClosed(value, gameObject);
        DestroyImmediate(gameObject);
    }
    public void CloseWithGameObject(GameObject value) {
        OnPopupClosed(value, gameObject);
        DestroyImmediate(gameObject);
    }

    public static void Open(PopupType type, Transform ui, string id, Func<dynamic, dynamic[]> func, params dynamic[] args) {
        var popup = Instantiate(Resources.Load("Popup"), Vector2.zero, Quaternion.identity, ui) as GameObject;
        popup.transform.localPosition = Vector2.zero;
        if (type == PopupType.Alert) {
            for (int i = 1; i < popup.transform.childCount; i++) {
                var child = popup.transform.GetChild(i);
                child.gameObject.SetActive(child.name == "Alert");
            }
            var alert = popup.transform.Find("Alert");
            alert.transform.Find("Title").GetComponent<Text>().text = (string)args[0];
            alert.transform.FindRecursive("AlertText").GetComponent<Text>().text = (string)args[1];
            TextGenerator textGen = new TextGenerator();
            TextGenerationSettings textGenSettings = alert.transform.FindRecursive("AlertText").GetComponent<Text>().GetGenerationSettings(alert.transform.FindRecursive("AlertText").GetComponent<RectTransform>().rect.size);
            var height = textGen.GetPreferredHeight((string)args[1], textGenSettings);
            alert.transform.FindRecursive("AlertText").GetComponent<RectTransform>().sizeDelta = new Vector2(alert.transform.FindRecursive("AlertText").GetComponent<RectTransform>().sizeDelta.x, alert.transform.FindRecursive("AlertText").GetComponent<Text>().preferredHeight);
        } else if (type == PopupType.Prompt) {
            for (int i = 1; i < popup.transform.childCount; i++) {
                var child = popup.transform.GetChild(i);
                child.gameObject.SetActive(child.name == "Prompt");
            }
            var prompt = popup.transform.Find("Prompt");
            popup.GetComponent<RectTransform>().sizeDelta = prompt.GetComponent<RectTransform>().sizeDelta;
            prompt.transform.Find("Title").GetComponent<Text>().text = (string)args[0];
            prompt.transform.Find("Input").GetComponentsInChildren<Text>()[0].text = (string)args[1];
        } else if (type == PopupType.List) {
            for (int i = 1; i < popup.transform.childCount; i++) {
                var child = popup.transform.GetChild(i);
                child.gameObject.SetActive(child.name == "List");
            }
            var list = popup.transform.Find("List");
            popup.GetComponent<RectTransform>().sizeDelta = list.GetComponent<RectTransform>().sizeDelta;
            list.transform.Find("Title").GetComponent<Text>().text = (string)args[0];
            var scrollContent = list.transform.FindRecursive("ScrollContent");
            var baseElement = Instantiate((GameObject)args[1], Vector3.zero, Quaternion.identity, scrollContent);
            baseElement.transform.SetAsFirstSibling();
            baseElement.transform.localScale = Vector3.one;
            baseElement.SetActive(false);
            for (int i = 0; i < args[2].Length; i++) {
                var el = Instantiate((GameObject)args[1], Vector3.zero, Quaternion.identity, scrollContent);
                el.transform.SetParent(scrollContent);
                el.transform.SetAsLastSibling();
                el.GetComponent<ListElement>().Init(popup, 3, func(args[2][i]));
            }
        }
        popup.name = id;
    }

    public static void Open(PopupType type, Transform ui, string id, params object[] args) {
        Popup.Open(type, ui, id, null, args);
    }
}