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

[ExecuteInEditMode]
public class MegaBook : MonoBehaviour
{
	public float dragsensi = 1f;

	public float keysensi = 1f;

	public GameObject front;

	public GameObject back;

	public GameObject page1;

	public GameObject page2;

	public GameObject page3;

	public List<Texture> pages = new List<Texture>();

	public float bookalpha;

	public float covergap;

	public float pagespace = 0.01f;

	public bool interactive;

	public bool useMouse;

	public KeyCode prevPageKey = KeyCode.A;

	public KeyCode nextPageKey = KeyCode.D;

	private MegaPageFlip pf1;

	private MegaPageFlip pf2;

	private MegaPageFlip pf3;

	private MeshRenderer mrpg1;

	private MeshRenderer mrpg2;

	private MeshRenderer mrpg3;

	private int currentPage;

	private bool pageTurning;

	private MegaModifyObject pobj1;

	private MegaModifyObject pobj2;

	private MegaModifyObject pobj3;

	private float page1turn = -1f;

	private float page2turn = -1f;

	private float page3turn = -1f;

	private void SetPageTexture(MeshRenderer mr, int i, Texture t)
	{
		if (mr.sharedMaterials[i].mainTexture != t)
		{
			mr.sharedMaterials[i].mainTexture = t;
		}
	}

	private void Update()
	{
		if (interactive)
		{
			Interactive();
		}
		if (page1 == null || page2 == null || page3 == null)
		{
			return;
		}
		if (page1 != null && pf1 == null)
		{
			pf1 = page1.GetComponent<MegaPageFlip>();
		}
		if (mrpg1 == null)
		{
			mrpg1 = page1.GetComponent<MeshRenderer>();
		}
		if (page2 != null && pf2 == null)
		{
			pf2 = page2.GetComponent<MegaPageFlip>();
		}
		if (mrpg2 == null)
		{
			mrpg2 = page2.GetComponent<MeshRenderer>();
		}
		if (page3 != null && pf3 == null)
		{
			pf3 = page3.GetComponent<MegaPageFlip>();
		}
		if (mrpg3 == null)
		{
			mrpg3 = page3.GetComponent<MeshRenderer>();
		}
		if (pf1 == null || pf2 == null || pf3 == null || front == null || back == null)
		{
			return;
		}
		if (pobj1 == null)
		{
			pobj1 = page1.GetComponent<MegaModifyObject>();
		}
		if (pobj2 == null)
		{
			pobj2 = page2.GetComponent<MegaModifyObject>();
		}
		if (pobj3 == null)
		{
			pobj3 = page3.GetComponent<MegaModifyObject>();
		}
		int num = pages.Count / 2 + 2;
		if (bookalpha < 0f)
		{
			bookalpha = 0f;
		}
		if (bookalpha > 100f)
		{
			bookalpha = 100f;
		}
		if (front.transform.childCount > 0)
		{
			Transform child = front.transform.GetChild(0);
			if (child != null)
			{
				Vector3 zero = Vector3.zero;
				zero.y = covergap * 0.5f;
				child.localPosition = zero;
			}
		}
		if (back.transform.childCount > 0)
		{
			Transform child2 = back.transform.GetChild(0);
			if (child2 != null)
			{
				Vector3 zero2 = Vector3.zero;
				zero2.y = (0f - covergap) * 0.5f;
				child2.localPosition = zero2;
			}
		}
		double num2 = (double)bookalpha / 100.0;
		int num3 = (int)((double)num * num2);
		double num4 = 1.0 / (double)num;
		double num5 = num2 % num4 / num4;
		Vector3 zero3 = Vector3.zero;
		if (num3 == 0)
		{
			zero3.z = 180f * (float)num5;
		}
		else
		{
			zero3.z = 180f;
		}
		front.transform.localRotation = Quaternion.Euler(zero3);
		if (num3 >= num - 1)
		{
			zero3.z = 180f * (float)num5;
		}
		else
		{
			zero3.z = 0f;
		}
		back.transform.localRotation = Quaternion.Euler(zero3);
		if (num >= 3)
		{
			if (num3 == 1)
			{
				pf1.turn = Mathf.Clamp((float)(num5 * 100.0), 0f, 100f);
				pf2.turn = 0f;
				pf3.turn = 0f;
			}
			else if (num3 == num - 2)
			{
				pf1.turn = 100f;
				pf2.turn = 100f;
				pf3.turn = Mathf.Clamp((float)(num5 * 100.0), 0f, 100f);
			}
			else if (num3 == 0)
			{
				pf1.turn = 0f;
				pf2.turn = 0f;
				pf3.turn = 0f;
			}
			else if (num3 >= num - 1)
			{
				pf1.turn = 100f;
				pf2.turn = 100f;
				pf3.turn = 100f;
			}
			else
			{
				pf1.turn = 100f;
				pf2.turn = Mathf.Clamp((float)(num5 * 100.0), 0f, 100f);
				pf3.turn = 0f;
			}
			Vector3 zero4 = Vector3.zero;
			zero4.y = Mathf.Lerp(pagespace, 0f - pagespace, pf1.turn * 0.01f);
			page1.transform.localPosition = zero4;
			zero4.y = Mathf.Lerp(0f, 0f, pf2.turn * 0.01f);
			page2.transform.localPosition = zero4;
			zero4.y = Mathf.Lerp(0f - pagespace, pagespace, pf3.turn * 0.01f);
			page3.transform.localPosition = zero4;
			int num6 = num3 - 2;
			if (num6 < 0)
			{
				num6 = 0;
			}
			num6 *= 2;
			if (num6 < pages.Count - 1)
			{
				SetPageTexture(mrpg1, 0, pages[num6]);
				SetPageTexture(mrpg1, 1, pages[num6 + 1]);
			}
			if (num6 < pages.Count - 3 && num6 < pages.Count - 5)
			{
				SetPageTexture(mrpg2, 0, pages[num6 + 2]);
				SetPageTexture(mrpg2, 1, pages[num6 + 3]);
			}
			if (num6 < pages.Count - 5)
			{
				SetPageTexture(mrpg3, 0, pages[num6 + 4]);
				SetPageTexture(mrpg3, 1, pages[num6 + 5]);
			}
			if (pf1.turn != page1turn)
			{
				page1turn = pf1.turn;
				pobj1.Enabled = true;
			}
			else if (page1turn == 100f || page1turn == 0f)
			{
				pobj1.Enabled = false;
			}
			else
			{
				pobj1.Enabled = true;
			}
			if (pf2.turn != page2turn)
			{
				page2turn = pf2.turn;
				pobj2.Enabled = true;
			}
			else if (page2turn == 100f || page2turn == 0f)
			{
				pobj2.Enabled = false;
			}
			else
			{
				pobj2.Enabled = true;
			}
			if (pf3.turn != page3turn)
			{
				page3turn = pf3.turn;
				pobj3.Enabled = true;
			}
			else if (page3turn == 100f || page3turn == 0f)
			{
				pobj3.Enabled = false;
			}
			else
			{
				pobj3.Enabled = true;
			}
		}
	}

	private void Interactive()
	{
		if (pageTurning)
		{
			return;
		}
		if (useMouse)
		{
			bookalpha += Input.GetAxis("Mouse X") * dragsensi;
			bookalpha = Mathf.Clamp(bookalpha, 0f, 100f);
			return;
		}
		if (Input.GetKeyDown(prevPageKey))
		{
			StartCoroutine(FlipToPage(currentPage - 1));
		}
		if (Input.GetKeyDown(nextPageKey))
		{
			StartCoroutine(FlipToPage(currentPage + 1));
		}
	}

	private IEnumerator FlipToPage(int page)
	{
		pageTurning = true;
		double totalPageCount = (pages.Count + 4) / 2;
		double target = (double)page / totalPageCount * 99.999;
		if (target < 0.0)
		{
			target = 0.0;
		}
		if (target > 100.0)
		{
			target = 100.0;
		}
		while (bookalpha != (float)target)
		{
			bookalpha = Mathf.MoveTowards(bookalpha, (float)target, keysensi * Time.deltaTime);
			yield return 0;
		}
		currentPage = page;
		pageTurning = false;
	}
}