/**
 * Copyright 2018-2028 WindChat Group
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.windchat.im.web.admin.controller;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import com.windchat.im.web.admin.exception.UserPermissionException;
import com.windchat.im.web.admin.service.IConfigService;
import com.windchat.im.web.admin.service.IGroupService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.windchat.common.utils.GsonUtils;
import com.akaxin.proto.core.PluginProto;
import com.windchat.im.business.dao.UserProfileDao;
import com.windchat.im.storage.bean.GroupMemberBean;
import com.windchat.im.storage.bean.GroupProfileBean;
import com.windchat.im.storage.bean.SimpleGroupBean;
import com.windchat.im.storage.bean.UserProfileBean;
import com.google.protobuf.InvalidProtocolBufferException;

/**
 * 群组管理控制器
 *
 * @author Sam{@link an.guoyue254@gmail.com}
 * @since 2018-04-17 18:03:07
 */
@Controller
@RequestMapping("group")
public class GroupManageController extends AbstractController {
	private static final Logger logger = LoggerFactory.getLogger(UserManageController.class);

	@Resource(name = "groupManageService")
	private IGroupService groupService;
	@Autowired
	private IConfigService configService;

	// admin.html 为群列表页
	@RequestMapping("/index")
	public ModelAndView toGroupIndex(@RequestBody byte[] bodyParam) {
		ModelAndView modelAndView = new ModelAndView("group/index");
		PluginProto.ProxyPluginPackage pluginPackage = null;
		try {
			pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParam);

			String siteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			List<String> defaultGroupList = configService.getUserDefaultGroupList();
			ArrayList<GroupProfileBean> groupProfileBeans = new ArrayList<>();
			modelAndView.addObject("groupDefaultSize", "0");
			if (defaultGroupList != null && defaultGroupList.size() > 0) {
				for (String s : defaultGroupList) {
					GroupProfileBean groupProfile = groupService.getGroupProfile(s);
					groupProfileBeans.add(groupProfile);
				}
				modelAndView.addObject("groupList", groupProfileBeans);
				modelAndView.addObject("groupDefaultSize", String.valueOf(defaultGroupList.size()));
			}
			return modelAndView;
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group index error", e);
		} catch (UserPermissionException e) {
			logger.error("to group index error : " + e.getMessage());
		}
		return new ModelAndView("error");
	}

	@SuppressWarnings("unchecked")
	public Map<String, Object> getRequestDataMapObj(PluginProto.ProxyPluginPackage pluginPackage) {
		return GsonUtils.fromJson(pluginPackage.getData(), Map.class);
	}

	// 跳转到manage界面
	@RequestMapping("manage")

	public ModelAndView toManage(@RequestBody byte[] bodyParams) {
		ModelAndView modelAndView = new ModelAndView("group/manage");
		Map<String, Object> model = modelAndView.getModel();
		PluginProto.ProxyPluginPackage pluginPackage = null;
		try {
			pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);

			String siteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			GroupProfileBean groupProfile = groupService.getGroupProfile(siteGroupId);
			model.put("group_id", siteGroupId);
			model.put("defaultState", groupProfile.getDefaultState());
			return modelAndView;
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group manage error", e);
		} catch (UserPermissionException e) {
			logger.error("to group manage error : " + e.getMessage());
		}
		return new ModelAndView("error");
	}

	// 跳转到添加群成员界面
	@RequestMapping("/siteUser")
	public ModelAndView toAddMember(@RequestBody byte[] bodyParams) {
		ModelAndView modelAndView = new ModelAndView("group/addMember");
		Map<String, Object> model = modelAndView.getModel();
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			model.put("siteGroupId", siteGroupId);
			return modelAndView;
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group add error", e);
		} catch (UserPermissionException e) {
			logger.error("to group add error : " + e.getMessage());
		}
		return new ModelAndView("error");
	}

	/**
	 * 设置用户的默认群组
	 * 
	 * @param bodyParams
	 * @return
	 */
	@RequestMapping("/setUserDefaultGroup")
	@ResponseBody
	public String setUserDefaultGroup(@RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String requestSiteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(requestSiteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			boolean flag = configService.setUserDefaultGroups(siteGroupId);
			if (flag) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group add error", e);
		} catch (UserPermissionException e) {
			logger.error("to group add error : " + e.getMessage());
			return NO_PERMISSION;
		}
		return ERROR;
	}

	@RequestMapping("/deleteUserDefaultGroup")
	@ResponseBody
	public String deleteUserDefaultGroup(@RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			boolean flag = configService.deleteUserDefaultGroup(siteGroupId);
			if (flag) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("del group default error", e);
		} catch (UserPermissionException e) {
			logger.error("del group default error : " + e.getMessage());
			return NO_PERMISSION;
		}
		return ERROR;
	}

	@RequestMapping("toMemberList")
	public ModelAndView toMemberList(@RequestBody byte[] bodyParams) {
		ModelAndView modelAndView = new ModelAndView("group/memberList");
		Map<String, Object> model = modelAndView.getModel();
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);
			// 增加权限校验
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			model.put("siteGroupId", siteGroupId);
			return modelAndView;
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group add error", e);
		} catch (UserPermissionException e) {
			logger.error("to group add error : " + e.getMessage());
		}
		return new ModelAndView("error");
	}

	// 跳转群组资料（群信息页面，修改群信息页面）
	@RequestMapping("/profile")
	public ModelAndView toGroupProfile(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		ModelAndView modelAndView = new ModelAndView("group/profile");
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");

			GroupProfileBean bean = groupService.getGroupProfile(siteGroupId);
			modelAndView.addObject("siteGroupId", bean.getGroupId());
			modelAndView.addObject("groupName", bean.getGroupName());
			modelAndView.addObject("groupPhoto", bean.getGroupPhoto());
			modelAndView.addObject("ownerUserId", bean.getCreateUserId());
			modelAndView.addObject("groupNotice", bean.getGroupNotice());
			modelAndView.addObject("groupStatus", bean.getGroupStatus());
			modelAndView.addObject("createTime", bean.getCreateTime());
			return modelAndView;
		} catch (InvalidProtocolBufferException e) {
			logger.error("to group profile error", e);
		} catch (UserPermissionException e) {
			logger.error("to group profile error : " + e.getMessage());
		}
		return new ModelAndView("error");
	}

	@RequestMapping("/refresh")
	@ResponseBody
	public Map<String, Object> refreshPage(@RequestBody byte[] bodyParams) {
		HashMap<String, Object> dataMap = new HashMap<>();
		PluginProto.ProxyPluginPackage pluginPackage = null;
		try {
			pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);

			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			List<String> defaultGroupList = configService.getUserDefaultGroupList();
			if (defaultGroupList == null || defaultGroupList.size() <= 0) {
				dataMap.put("size", 0);
				return dataMap;
			}
			ArrayList<Map<String, Object>> data = new ArrayList<>();
			for (String s : defaultGroupList) {
				GroupProfileBean bean = groupService.getGroupProfile(s);
				HashMap<String, Object> groupMap = new HashMap<>();
				groupMap.put("siteGroupId", bean.getGroupId());
				groupMap.put("groupName", bean.getGroupName());
				groupMap.put("groupPhoto", bean.getGroupPhoto());
				data.add(groupMap);
			}
			dataMap.put("size", data.size());
			dataMap.put("data", data);
		} catch (InvalidProtocolBufferException e) {
			logger.error("refresh group list error", e);
		} catch (UserPermissionException e) {
			logger.error("refresh group list error : " + e.getMessage());
		}
		return dataMap;
	}

	@RequestMapping(method = RequestMethod.POST, value = "/list")
	@ResponseBody
	public Map<String, Object> getGroupList(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		Map<String, Object> results = new HashMap<String, Object>();
		boolean nodata = true;

		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			int pageNum = Integer.valueOf(reqMap.get("page"));
			List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();
			List<SimpleGroupBean> groupList = groupService.getGroupList(pageNum, PAGE_SIZE);
			if (groupList != null && groupList.size() > 0) {
				nodata = false;
				List<String> defaultGroupList = configService.getUserDefaultGroupList();
				for (SimpleGroupBean bean : groupList) {
					if (defaultGroupList != null && defaultGroupList.size() > 0) {
						boolean contains = defaultGroupList.contains(bean.getGroupId());
						if (contains) {
							continue;
						}
					}

					Map<String, Object> groupMap = new HashMap<String, Object>();
					groupMap.put("siteGroupId", bean.getGroupId());
					groupMap.put("groupName", bean.getGroupName());
					groupMap.put("groupPhoto", bean.getGroupPhoto());
					data.add(groupMap);
				}

			}
			results.put("groupData", data);
		} catch (InvalidProtocolBufferException e) {
			logger.error("get group list error", e);
		} catch (UserPermissionException e) {
			logger.error("get group list error : " + e.getMessage());
		}
		results.put("loading", nodata);
		return results;
	}

	@RequestMapping(method = RequestMethod.POST, value = "/updateProfile")
	@ResponseBody
	public String updateGroupProfile(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			GroupProfileBean bean = new GroupProfileBean();
			bean.setGroupId(trim(reqMap.get("siteGroupId")));
			bean.setGroupName(trim(reqMap.get("groupName")));
			bean.setGroupPhoto(trim(reqMap.get("groupPhoto")));
			bean.setGroupNotice(trim(reqMap.get("groupNotice")));
			if (groupService.updateGroupProfile(bean)) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("update group profile error", e);
		} catch (UserPermissionException e) {
			logger.error("update group profile error : " + e.getMessage());
			return NO_PERMISSION;
		}
		return ERROR;
	}

	@RequestMapping(method = RequestMethod.POST, value = "/groupMember")
	@ResponseBody
	public Map<String, Object> getGroupMembers(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		Map<String, Object> results = new HashMap<String, Object>();
		boolean nodata = true;
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			int pageNum = Integer.valueOf(reqMap.get("page"));
			List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();

			List<GroupMemberBean> memberList = groupService.getGroupMembers(siteGroupId, pageNum, PAGE_SIZE);
			if (memberList != null && memberList.size() > 0) {
				if (PAGE_SIZE == memberList.size()) {
					nodata = false;
				}

				for (GroupMemberBean bean : memberList) {
					Map<String, Object> memberMap = new HashMap<String, Object>();
					memberMap.put("siteUserId", bean.getUserId());
					memberMap.put("userName", bean.getUserName());
					memberMap.put("userPhoto", bean.getUserPhoto());
					memberMap.put("userStatus", bean.getUserStatus());
					memberMap.put("userRole", bean.getUserRole());// 是否为群主
					data.add(memberMap);
				}

			}
			results.put("groupMemberData", data);
		} catch (InvalidProtocolBufferException e) {
			logger.error("get group members error", e);
		} catch (UserPermissionException e) {
			logger.error("get group members error : " + e.getMessage());
		}

		results.put("loading", nodata);
		return results;
	}

	@RequestMapping(method = RequestMethod.POST, value = "/nonGroupMember")
	@ResponseBody
	public Map<String, Object> getNonGroupMembers(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		Map<String, Object> results = new HashMap<String, Object>();
		boolean nodata = true;
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);
			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			int pageNum = Integer.valueOf(reqMap.get("page"));
			List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();

			List<GroupMemberBean> noMemberList = groupService.getNonGroupMembers(siteGroupId, pageNum, PAGE_SIZE);
			for (GroupMemberBean bean : noMemberList) {
				if (bean.getUserStatus() == 1) {
					noMemberList.remove(bean);
				}
			}

			if (noMemberList != null && noMemberList.size() > 0) {
				if (PAGE_SIZE == noMemberList.size()) {
					nodata = false;
				}

				for (GroupMemberBean bean : noMemberList) {
					Map<String, Object> nonMemberMap = new HashMap<String, Object>();
					nonMemberMap.put("siteUserId", bean.getUserId());
					nonMemberMap.put("userName", bean.getUserName());
					nonMemberMap.put("userPhoto", bean.getUserPhoto());
					nonMemberMap.put("userStatus", bean.getUserStatus());
					nonMemberMap.put("userRole", bean.getUserRole());// 这里全部为非群成员
					data.add(nonMemberMap);
				}

			}
			results.put("nonGroupMemberData", data);
		} catch (InvalidProtocolBufferException e) {
			logger.error("get non group members error", e);
		} catch (UserPermissionException e) {
			logger.error("get non group members error : " + e.getMessage());
		}

		results.put("loading", nodata);
		return results;
	}

	// 添加群组成员：后台添加，群聊不添加通知消息
	@SuppressWarnings("unchecked")
	@RequestMapping(method = RequestMethod.POST, value = "/addGroupMember")
	@ResponseBody
	public String addGroupMember(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, Object> reqMap = getRequestDataMapObj(pluginPackage);
			String siteGroupId = (String) reqMap.get("siteGroupId");
			List<String> memberList = (List<String>) reqMap.get("groupMembers");
			for (String id : memberList) {
				UserProfileBean bean = UserProfileDao.getInstance().getUserProfileById(id);
				if (bean.getUserStatus() == 1) {
					memberList.remove(id);
				}
			}
			logger.info("siteUserId={} add group={} members={}", siteUserId, siteGroupId, memberList);

			if (groupService.addGroupMembers(siteGroupId, memberList)) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("update group profile error", e);
		} catch (UserPermissionException e) {
			logger.error("update group profile error : " + e.getMessage());
			return NO_PERMISSION;
		}

		return ERROR;
	}

	// 添加群组成员：后台添加，群聊不添加通知消息
	@SuppressWarnings("unchecked")
	@RequestMapping(method = RequestMethod.POST, value = "/removeGroupMember")
	@ResponseBody
	public String removeGroupMember(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, Object> reqMap = getRequestDataMapObj(pluginPackage);
			String siteGroupId = (String) reqMap.get("siteGroupId");
			List<String> memberList = (List<String>) reqMap.get("groupMembers");
			if (groupService.removeGroupMembers(siteGroupId, memberList)) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("update group profile error", e);
		} catch (UserPermissionException e) {
			logger.error("update group profile error : " + e.getMessage());
			return NO_PERMISSION;
		}

		return ERROR;
	}

	// 解散群聊：逻辑删除
	@RequestMapping(method = RequestMethod.POST, value = "/dissmiss")
	@ResponseBody
	public String dissmisGroup(HttpServletRequest request, @RequestBody byte[] bodyParams) {
		try {
			PluginProto.ProxyPluginPackage pluginPackage = PluginProto.ProxyPluginPackage.parseFrom(bodyParams);
			String siteUserId = getRequestSiteUserId(pluginPackage);

			if (!isManager(siteUserId)) {
				throw new UserPermissionException("Current user is not a manager");
			}
			Map<String, String> reqMap = getRequestDataMap(pluginPackage);
			String siteGroupId = reqMap.get("group_id");
			if (groupService.dismissGroup(siteGroupId)) {
				return SUCCESS;
			}
		} catch (InvalidProtocolBufferException e) {
			logger.error("update group profile error", e);
		} catch (UserPermissionException e) {
			logger.error("update group profile error : " + e.getMessage());
			return NO_PERMISSION;
		}

		return ERROR;
	}
}