package cn.shangyu.gdxzExpert.activity;

import android.Manifest;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Build;
import android.provider.MediaStore;
import android.provider.MediaStore.Images.Thumbnails;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.FrameLayout.LayoutParams;
import android.widget.GridView;

import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;

import com.gyf.immersionbar.ImmersionBar;

import java.io.InvalidClassException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import cn.shangyu.gdxzExpert.R;
import cn.shangyu.gdxzExpert.adapter.PhotoAdappter2;
import cn.shangyu.gdxzExpert.base.BaseActivity;
import cn.shangyu.gdxzExpert.bean.PhotoAibum;
import cn.shangyu.gdxzExpert.bean.PhotoItem;
import cn.shangyu.gdxzExpert.ecdemo.common.ECPreferenceSettings;
import cn.shangyu.gdxzExpert.ecdemo.common.ECPreferences;
import cn.shangyu.gdxzExpert.photo.AlbumPreviewActivity;
import cn.shangyu.gdxzExpert.utils.LogUtil;
import cn.shangyu.gdxzExpert.utils.ToastUtil;
import cn.shangyu.gdxzExpert.utils.UIUtils;
import cn.shangyu.gdxzExpert.widget.LoadingPage.ResultState;

/******************************************
 * 类描述： 直接显示全部照片的相册选择页面 类名称：AllPhotosActivity
 *
 * @version: 1.0
 * @author: Auto
 * @time: 2024
 *****************************************/
public class AllPhotosActivity extends BaseActivity {
	private GridView photosGV;
	private PhotoAdappter2 adapter;
	private View view;
	private Intent getIntent;
	private String haveNums;
	private String istopc;
	private boolean isTopc = false;
	private boolean isTalke = false;
	private ArrayList<PhotoItem> gl_arr = new ArrayList<PhotoItem>();
	private int PhotoNum = 8;
	int maxnumber, issendgroup;
	
	// 设置获取图片的字段信息
	private static final String[] STORE_IMAGES = {
			MediaStore.Images.Media.DISPLAY_NAME, // 显示的名称
			MediaStore.Images.Media.DATA,//路径
			MediaStore.Images.Media.LONGITUDE, // 经度
			MediaStore.Images.Media._ID, // id
			MediaStore.Images.Media.BUCKET_ID, // dir id 目录
			MediaStore.Images.Media.BUCKET_DISPLAY_NAME // dir name 目录名字
	};

	@Override
	public void setTitle() {
		top_title.setText("选择图片");
	}

	private PhotoAibum allPhotosAibum;

	@Override
	public View onCreateSuccessedView() {
		LogUtil.d("AllPhotosActivity", "onCreateSuccessedView: 开始创建视图");
		ImmersionBar.with(this).keyboardEnable(true).statusBarDarkFont(true).titleBar(mToolbar).init();
		view = UIUtils.inflate(R.layout.activity_photoalbum);
		photosGV = (GridView) view.findViewById(R.id.album_gridview);
		
		if (photosGV == null) {
			LogUtil.e("AllPhotosActivity", "onCreateSuccessedView: photosGV 为 null");
		}
		
		// 直接加载所有照片
		allPhotosAibum = getAllPhotos();
		
		LogUtil.d("AllPhotosActivity", "onCreateSuccessedView: 照片加载完成, allPhotosAibum.bitList.size=" + 
				(allPhotosAibum != null && allPhotosAibum.bitList != null ? allPhotosAibum.bitList.size() : 0));
		
		if (allPhotosAibum == null || allPhotosAibum.bitList == null || allPhotosAibum.bitList.isEmpty()) {
			LogUtil.w("AllPhotosActivity", "onCreateSuccessedView: 照片列表为空，无法显示照片");
		}
		
		initIntent();
		initPhotosView();
		LogUtil.d("AllPhotosActivity", "onCreateSuccessedView: 视图创建完成");
		return view;
	}

	/**
	 * 初始化照片视图
	 */
	private void initPhotosView() {
		top_right_text.setVisibility(View.VISIBLE);
		if (isTopc) {
			maxnumber = 3;
			PhotoNum = 3;
			top_right_text.setText("确认" + haveNums + "/3");
		} else {
			maxnumber = PhotoNum;
			top_right_text.setText("确认" + haveNums + "/" + PhotoNum);
		}

		top_right_text.setTextColor(AllPhotosActivity.this.getResources()
				.getColor(R.color.white));
		top_right_text.setTextSize(14);
		top_right_text.setBackgroundResource(R.drawable.selector_btn);
		LayoutParams paras = (LayoutParams) top_right_text
				.getLayoutParams();
		paras.setMargins(0, 0, dip2px(AllPhotosActivity.this, 10), 0);
		paras.height = dip2px(AllPhotosActivity.this, 30);
		top_right_text.setLayoutParams(paras);

		top_right_text.setOnClickListener(this);
		adapter = new PhotoAdappter2(this, allPhotosAibum);
		photosGV.setNumColumns(3);
		photosGV.setAdapter(adapter);
		adapter.setOnItemClickListener(new PhotoAdappter2.ViewItemClickListener() {
			@Override
			public void onItemClick(int position) {
				if (potisions.contains(position + "")) {
					potisions.remove(position + "");
					haveNums = (Integer.parseInt(haveNums) - 1) + "";
				} else {
					if (isTopc) {
						if (Integer.parseInt(haveNums) < 3) {
							potisions.add(position + "");
							haveNums = (Integer.parseInt(haveNums) + 1) + "";
							maxnumber = 3;
						} else {
							ToastUtil.showMessage("最多添加" + PhotoNum + "张");
							return;
						}
					} else {
						if (Integer.parseInt(haveNums) < PhotoNum) {
							potisions.add(position + "");
							haveNums = (Integer.parseInt(haveNums) + 1) + "";
							maxnumber = PhotoNum;
						} else {
							ToastUtil.showMessage("最多添加" + PhotoNum + "张");
							return;
						}
					}
				}
				if (isTopc) {
					maxnumber = 3;
					top_right_text.setText("确认" + haveNums + "/3");
				} else {
					maxnumber = PhotoNum;
					top_right_text.setText("确认" + haveNums + "/" + PhotoNum);
				}

				adapter.getPosition(potisions);
				adapter.notifyDataSetChanged();
			}
		});
		photosGV.setOnItemClickListener(gvItemClickListener);
	}

	private ArrayList<String> potisions = new ArrayList<String>();
	
	private OnItemClickListener gvItemClickListener = new OnItemClickListener() {
		@Override
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			Intent intent = new Intent(AllPhotosActivity.this, AlbumPreviewActivity.class);
			intent.putExtra(AlbumPreviewActivity.ARG_BUCKET_INDEX, 0);
			intent.putExtra(AlbumPreviewActivity.ARG_INDEX, position);
			intent.putExtra(AlbumPreviewActivity.MAX_NUMBER, maxnumber);
			intent.putExtra("aibum", allPhotosAibum);
			intent.putExtra("haveNums", Integer.parseInt(haveNums));
			intent.putStringArrayListExtra("potisions", potisions);
			startActivityForResult(intent, 500);
		}
	};

	ContentResolver cr;

	public void getpath() {
		LogUtil.d("AllPhotosActivity", "getpath: potisions=" + (potisions != null ? "not null, size=" + potisions.size() : "null") + 
				", allPhotosAibum=" + (allPhotosAibum != null ? "not null" : "null") + 
				", allPhotosAibum.bitList=" + (allPhotosAibum != null && allPhotosAibum.bitList != null ? "not null, size=" + allPhotosAibum.bitList.size() : "null"));
		gl_arr.clear();
		if (potisions == null || potisions.isEmpty()) {
			LogUtil.w("AllPhotosActivity", "getpath: potisions 为空，没有选中的照片");
			return;
		}
		if (allPhotosAibum == null || allPhotosAibum.bitList == null || allPhotosAibum.bitList.isEmpty()) {
			LogUtil.w("AllPhotosActivity", "getpath: allPhotosAibum 或 bitList 为空，无法获取照片");
			return;
		}
		for (int i = 0; i < potisions.size(); i++) {
			try {
				int position = Integer.parseInt(potisions.get(i));
				if (position >= 0 && position < allPhotosAibum.bitList.size()) {
					PhotoItem item = allPhotosAibum.bitList.get(position);
					if (item != null) {
						gl_arr.add(item);
						LogUtil.d("AllPhotosActivity", "getpath: 添加 PhotoItem[" + i + "], position=" + position + ", path=" + item.getPath());
					} else {
						LogUtil.e("AllPhotosActivity", "getpath: PhotoItem[" + position + "] 为 null");
					}
				} else {
					LogUtil.e("AllPhotosActivity", "getpath: 索引越界, position=" + position + ", bitList.size=" + allPhotosAibum.bitList.size());
				}
			} catch (NumberFormatException e) {
				LogUtil.e("AllPhotosActivity", "getpath: 无法解析位置索引[" + i + "]=" + potisions.get(i) + ", error: " + e.getMessage());
			} catch (Exception e) {
				LogUtil.e("AllPhotosActivity", "getpath: 处理位置[" + i + "]时发生异常, error: " + e.getMessage());
			}
		}
		LogUtil.d("AllPhotosActivity", "getpath: 最终 gl_arr.size=" + gl_arr.size());
	}

	private void getThumbnail() {
		LogUtil.d("AllPhotosActivity", "getThumbnail: 开始加载缩略图");
		cr = AllPhotosActivity.this.getContentResolver();
		String[] projection = { Thumbnails._ID, Thumbnails.IMAGE_ID,
				Thumbnails.DATA };
		try {
			Cursor cursor = cr.query(Thumbnails.EXTERNAL_CONTENT_URI, projection,
					null, null, null);
			if (cursor == null) {
				LogUtil.w("AllPhotosActivity", "getThumbnail: cursor 为 null");
			} else {
				LogUtil.d("AllPhotosActivity", "getThumbnail: cursor.count=" + cursor.getCount());
				getThumbnailColumnData(cursor);
			}
		} catch (Exception e) {
			LogUtil.e("AllPhotosActivity", "getThumbnail: 查询缩略图时发生异常, error: " + e.getMessage());
			e.printStackTrace();
		}
	}

	HashMap<String, String> thumbnailList = new HashMap<String, String>();

	private void getThumbnailColumnData(Cursor cur) {
		if (cur.moveToFirst()) {
			int _id;
			int image_id;
			String image_path;
			int _idColumn = cur.getColumnIndex(Thumbnails._ID);
			int image_idColumn = cur.getColumnIndex(Thumbnails.IMAGE_ID);
			int dataColumn = cur.getColumnIndex(Thumbnails.DATA);

			do {
				_id = cur.getInt(_idColumn);
				image_id = cur.getInt(image_idColumn);
				image_path = cur.getString(dataColumn);
				thumbnailList.put("" + image_id, image_path);
			} while (cur.moveToNext());
		}
	}

	/**
	 * 方法描述：获取所有照片（不分类）
	 *
	 * @author: Auto
	 * @time: 2024
	 */
	private PhotoAibum getAllPhotos() {
		LogUtil.d("AllPhotosActivity", "getAllPhotos: 开始加载所有照片, SDK_INT=" + Build.VERSION.SDK_INT);
		getThumbnail();
		PhotoAibum allPhotos = new PhotoAibum();
		allPhotos.setName("全部图片");
		
		// 检查权限
		boolean hasPermission = false;
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
			// Android 13+ 需要 READ_MEDIA_IMAGES 权限
			hasPermission = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
			LogUtil.d("AllPhotosActivity", "getAllPhotos: Android 13+, READ_MEDIA_IMAGES permission=" + hasPermission);
		} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
			// Android 6.0-12 需要 READ_EXTERNAL_STORAGE 权限
			hasPermission = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
			LogUtil.d("AllPhotosActivity", "getAllPhotos: Android 6.0-12, READ_EXTERNAL_STORAGE permission=" + hasPermission);
		} else {
			// Android 6.0 以下不需要运行时权限
			hasPermission = true;
			LogUtil.d("AllPhotosActivity", "getAllPhotos: Android < 6.0, 不需要运行时权限");
		}
		
		if (!hasPermission) {
			LogUtil.e("AllPhotosActivity", "getAllPhotos: 没有读取照片的权限，无法查询照片");
			ToastUtil.showMessage("需要照片访问权限才能查看相册");
			return allPhotos;
		}
		
		try {
			LogUtil.d("AllPhotosActivity", "getAllPhotos: 查询 MediaStore.Images.Media.EXTERNAL_CONTENT_URI=" + MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
			Cursor cursor = null;
			try {
				cursor = getContentResolver().query(
						MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 
						STORE_IMAGES,
						null,
						null,
						MediaStore.Images.Media.DATE_ADDED + " ASC");
			} catch (SecurityException e) {
				LogUtil.e("AllPhotosActivity", "getAllPhotos: SecurityException - 权限被拒绝, error: " + e.getMessage());
				e.printStackTrace();
				ToastUtil.showMessage("无法访问照片，请检查权限设置");
				return allPhotos;
			} catch (Exception e) {
				LogUtil.e("AllPhotosActivity", "getAllPhotos: 查询时发生异常, error: " + e.getMessage());
				e.printStackTrace();
				return allPhotos;
			}
			
			if (cursor == null) {
				LogUtil.e("AllPhotosActivity", "getAllPhotos: cursor 为 null，无法查询照片");
				return allPhotos;
			}
			
			int cursorCount = cursor.getCount();
			LogUtil.d("AllPhotosActivity", "getAllPhotos: cursor.count=" + cursorCount);
			
			if (cursorCount == 0) {
				LogUtil.w("AllPhotosActivity", "getAllPhotos: cursor 为空，没有找到照片。可能原因：1)设备上没有照片 2)权限问题 3)Android 10+分区存储限制");
				cursor.close();
				return allPhotos;
			}
			
			List<PhotoItem> photoList = allPhotos.getBitList();
			int processedCount = 0;
			
			while (cursor.moveToNext()) {
				try {
					String path = cursor.getString(1) + "";
					String id = cursor.getString(3) + "";
					
					if (path == null || path.isEmpty() || "null".equals(path)) {
						LogUtil.w("AllPhotosActivity", "getAllPhotos: 跳过无效路径的照片, id=" + id);
						continue;
					}
					
					processedCount++;
					if (processedCount <= 5) {
						LogUtil.d("AllPhotosActivity", "getAllPhotos: 处理照片[" + processedCount + "], id=" + id + ", path=" + path);
					}
					
					photoList.add(new PhotoItem(Integer.valueOf(id), path));
				} catch (Exception e) {
					LogUtil.e("AllPhotosActivity", "getAllPhotos: 处理照片时发生异常, error: " + e.getMessage());
					e.printStackTrace();
				}
			}
			cursor.close();
			
			allPhotos.setCount(photoList.size());
			LogUtil.d("AllPhotosActivity", "getAllPhotos: 处理完成, processedCount=" + processedCount + ", total=" + photoList.size());
		} catch (Exception e) {
			LogUtil.e("AllPhotosActivity", "getAllPhotos: 发生异常, error: " + e.getMessage());
			e.printStackTrace();
		}

		return allPhotos;
	}

	private void initIntent() {
		getIntent = getIntent();
		haveNums = getIntent.getStringExtra("photonum");
		PhotoNum = getIntent.getIntExtra("maxphotonum", 8);
		issendgroup = getIntent.getIntExtra("issendgroup", 0);
		if (haveNums.equals("-1")) {
			PhotoNum = 5;
			haveNums = "0";
			isTalke = true;
		} else if ("1".equals(issendgroup + "")) {
			isTalke = true;
		}
		istopc = getIntent.getStringExtra("isTopic");
		if (istopc != null && istopc.equals("isTopic")) {
			isTopc = true;
		}
	}

	@Override
	public ResultState onLoad() {
		return ResultState.STATE_SUCCESSED;
	}

	@Override
	protected void processClick(View v) {
		switch (v.getId()) {
			case R.id.top_right_text:
				LogUtil.d("AllPhotosActivity", "确认按钮点击，开始返回照片数据");
				getpath();
				LogUtil.d("AllPhotosActivity", "确认按钮: gl_arr.size=" + gl_arr.size() + ", isTalke=" + isTalke);
				if (gl_arr.size() > 0) {
					try {
						ECPreferences.savePreference(
								ECPreferenceSettings.SETTINGS_PREVIEW_SELECTED,
								Boolean.TRUE, true);
					} catch (InvalidClassException e) {
						e.printStackTrace();
					}
					for (int i = 0; i < gl_arr.size(); i++) {
						PhotoItem item = gl_arr.get(i);
						LogUtil.d("AllPhotosActivity", "返回 PhotoItem[" + i + "]: path=" + (item != null ? item.getPath() : "null"));
					}
				} else {
					LogUtil.w("AllPhotosActivity", "确认按钮: gl_arr 为空，没有选择照片");
				}
				Intent intent = new Intent();
				intent.putExtra("photos", (Serializable) gl_arr);
				if (isTalke) {
					setResult(RESULT_OK, intent);
					LogUtil.d("AllPhotosActivity", "设置返回结果: RESULT_OK, photos count=" + gl_arr.size());
				} else {
					setResult(102, intent);
					LogUtil.d("AllPhotosActivity", "设置返回结果: 102, photos count=" + gl_arr.size());
				}

				this.finish();
				break;

			default:
				break;
		}
	}

	// dp到像素的转换
	public static int dip2px(Context context, double d) {
		final float scale = context.getResources().getDisplayMetrics().density;
		return (int) (d * scale + 0.5f);
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (requestCode == 500) {
			if (resultCode == Activity.RESULT_OK) {
				potisions = data.getExtras().getStringArrayList("potisions");
				haveNums = data.getExtras().getInt("haveNums") + "";
				adapter.getPosition(potisions);
				adapter.notifyDataSetChanged();
				top_right_text.setText("确认" + haveNums + "/" + maxnumber + "张");
			}
		}
	}
}